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Google Keyword Rankings for : cfc dating groundwater
1
The Reston Groundwater Dating Laboratory
https://water.usgs.gov/lab/chlorofluorocarbons/background/
Collection and analysis of ground-water and soil-gas samples for chlorofluorocarbons. ... Age dating ground water by use of chlorofluorocarbons .
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https://water.usgs.gov/lab/chlorofluorocarbons/background/
Collection and analysis of ground-water and soil-gas samples for chlorofluorocarbons. ... Age dating ground water by use of chlorofluorocarbons .
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2
Dating groundwater with dissolved silica and CFC ... - PubMed
https://pubmed.ncbi.nlm.nih.gov/29705438/
We calibrated silicate weathering rates with CFCs from multiple wells in five crystalline aquifers in Brittany and in the Vosges Mountains ( ...
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https://pubmed.ncbi.nlm.nih.gov/29705438/
We calibrated silicate weathering rates with CFCs from multiple wells in five crystalline aquifers in Brittany and in the Vosges Mountains ( ...
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3
Groundwater age dating with chlorofluorocarbons - Oster - 1996
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/96wr01775
CFCs are useful tracers for age dating young water. ... However, in soil air above the groundwater table the CFC excess variation is ...
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https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/96wr01775
CFCs are useful tracers for age dating young water. ... However, in soil air above the groundwater table the CFC excess variation is ...
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4
CFCs and SF6 for groundwater dating: a SWOT analysis - CORE
https://core.ac.uk/download/pdf/56746.pdf
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) offer a convenient way of dating waters up to ~60 yrs old. In contrast to tritium, these gases are ...
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https://core.ac.uk/download/pdf/56746.pdf
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF6) offer a convenient way of dating waters up to ~60 yrs old. In contrast to tritium, these gases are ...
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5
CHLOROFLUOROCARBON AND TRITIUM AGE ...
https://www.twdb.texas.gov/publications/reports/contracted_reports/doc/93483385.pdf
Collection and analysis of ground water for selected properties and constituents ...... 8. Age dating ground water with chlorofluorocarbons .
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https://www.twdb.texas.gov/publications/reports/contracted_reports/doc/93483385.pdf
Collection and analysis of ground water for selected properties and constituents ...... 8. Age dating ground water with chlorofluorocarbons .
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6
The practicalities of using CFCs and SF6 for ... - ResearchGate
https://www.researchgate.net/publication/234842499_The_practicalities_of_using_CFCs_and_SF6_for_groundwater_dating_and_tracing
As with all groundwater dating methods, caveats apply. Factors such as recharge temperature and elevation must be reasonably well-constrained.
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https://www.researchgate.net/publication/234842499_The_practicalities_of_using_CFCs_and_SF6_for_groundwater_dating_and_tracing
As with all groundwater dating methods, caveats apply. Factors such as recharge temperature and elevation must be reasonably well-constrained.
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7
Groundwater Dating with Atmospheric Halogenated Compounds
https://link.springer.com/10.1007/978-94-007-6326-5_257-1
CFC dating was used to obtain the historical record of nitrate contamination in aquifers (Böhlke and Denver 1995; Katz et al. 2001; Lindsey et al.
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https://link.springer.com/10.1007/978-94-007-6326-5_257-1
CFC dating was used to obtain the historical record of nitrate contamination in aquifers (Böhlke and Denver 1995; Katz et al. 2001; Lindsey et al.
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8
Accuracy of CFC groundwater dating in a crystalline bedrock ...
https://ui.adsabs.harvard.edu/abs/2004HydJ...12..171B/abstract
The concentrations of chlorofluorocarbons (CFC-11, CFC-12, and CFC-113) and tritium were determined in groundwater in fractured crystalline bedrock at ...
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https://ui.adsabs.harvard.edu/abs/2004HydJ...12..171B/abstract
The concentrations of chlorofluorocarbons (CFC-11, CFC-12, and CFC-113) and tritium were determined in groundwater in fractured crystalline bedrock at ...
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9
ISOTOPE METHODS FOR DATING OLD GROUNDWATER
https://www-pub.iaea.org/MTCD/publications/PDF/Pub1587_web.pdf
isotopic tools for recharge rate determination include cl, chlorofluorocarbons (cfcs), 3h, 3h/3he and. 14c. for groundwater systems with low or even ...
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https://www-pub.iaea.org/MTCD/publications/PDF/Pub1587_web.pdf
isotopic tools for recharge rate determination include cl, chlorofluorocarbons (cfcs), 3h, 3h/3he and. 14c. for groundwater systems with low or even ...
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10
Using chlorofluorocarbons (CFCs) and tritium to improve ...
http://sourcedb.igsnrr.cas.cn/yw/lw/201204/P020120418612250203225.pdf
water zone, mostly comprising waters with ages beyond the dating range of both CFCs and tritium. Some shallow groundwater.
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http://sourcedb.igsnrr.cas.cn/yw/lw/201204/P020120418612250203225.pdf
water zone, mostly comprising waters with ages beyond the dating range of both CFCs and tritium. Some shallow groundwater.
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11
A review - NERC Open Research Archive
https://nora.nerc.ac.uk/id/eprint/526086/1/Environ_tracers.pdf
damentals of CFC-11, CFC-12, CFC-113 and SF6 as environmental tracers of groundwater ... tions and limitations of groundwater age dating based on the CFCs.
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https://nora.nerc.ac.uk/id/eprint/526086/1/Environ_tracers.pdf
damentals of CFC-11, CFC-12, CFC-113 and SF6 as environmental tracers of groundwater ... tions and limitations of groundwater age dating based on the CFCs.
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12
A multi-environmental tracer study to determine groundwater ...
https://hess.copernicus.org/preprints/hess-2019-451/hess-2019-451.pdf
the anthropogenic gases SF6, CFC-12 and CFC-11, CFC-113 as “dating” tracers to estimate the young water components inside the Eastern Mountain Aquifer ...
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https://hess.copernicus.org/preprints/hess-2019-451/hess-2019-451.pdf
the anthropogenic gases SF6, CFC-12 and CFC-11, CFC-113 as “dating” tracers to estimate the young water components inside the Eastern Mountain Aquifer ...
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13
Dating groundwater with dissolved silica and CFC ... - INSU
https://hal-insu.archives-ouvertes.fr/insu-01779877/file/Marcais-2018.pdf
Dating groundwater with dissolved silica and CFC concentrations in crystalline. 1 aquifers. 2. Jean Marçais. †1,2. , Alexandre Gauvain.
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https://hal-insu.archives-ouvertes.fr/insu-01779877/file/Marcais-2018.pdf
Dating groundwater with dissolved silica and CFC concentrations in crystalline. 1 aquifers. 2. Jean Marçais. †1,2. , Alexandre Gauvain.
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14
Review of techniques for dating young groundwater - jstor
https://www.jstor.org/stable/43945058
methods for dating groundwater and their ... limitations of CFC and SF<$ as groundwater age tracers for dating ... CFCs and tritium) for groundwater dating.
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https://www.jstor.org/stable/43945058
methods for dating groundwater and their ... limitations of CFC and SF<$ as groundwater age tracers for dating ... CFCs and tritium) for groundwater dating.
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15
Tracing and Dating Young Ground Water - Semantic Scholar
https://www.semanticscholar.org/paper/Tracing-and-Dating-Young-Ground-Water-Plummer-Friedman/0a66dccbedc9d0be650047ad68adbcde4cb7f2cf
bons (CFCs), tritium (3H), and other chemical and isotopic substances in ground water, can be used to trace the flow of young water (water recharged within ...
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https://www.semanticscholar.org/paper/Tracing-and-Dating-Young-Ground-Water-Plummer-Friedman/0a66dccbedc9d0be650047ad68adbcde4cb7f2cf
bons (CFCs), tritium (3H), and other chemical and isotopic substances in ground water, can be used to trace the flow of young water (water recharged within ...
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16
5.15 Groundwater Dating and Residence-time Measurements
http://www.ees.nmt.edu/outside/courses/hyd558/downloads/Set_8a_IntroDating/GWDating_ResTime.pdf
5.15.7.3 Implications at the Aquifer Scale. 482. 5.15.8 TRACERS AT THE LOCAL SCALE. 483. 5.15.8.1 Introduction. 483. 5.15.8.2 3H/ 3He, CFC-11, CFC-12, ...
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http://www.ees.nmt.edu/outside/courses/hyd558/downloads/Set_8a_IntroDating/GWDating_ResTime.pdf
5.15.7.3 Implications at the Aquifer Scale. 482. 5.15.8 TRACERS AT THE LOCAL SCALE. 483. 5.15.8.1 Introduction. 483. 5.15.8.2 3H/ 3He, CFC-11, CFC-12, ...
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17
Groundwater, Age of - human - Water Encyclopedia
http://www.waterencyclopedia.com/Ge-Hy/Groundwater-Age-of.html
Atmospheric concentrations of CFCs are not expected to decrease quickly, so CFC dating will continue to work for most young groundwater for many years to ...
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http://www.waterencyclopedia.com/Ge-Hy/Groundwater-Age-of.html
Atmospheric concentrations of CFCs are not expected to decrease quickly, so CFC dating will continue to work for most young groundwater for many years to ...
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18
comparison of the transient tracers
https://www.ldeo.columbia.edu/sites/default/files/uploaded/image/delmarva.pdf
Dating of shallow groundwater: comparison of the transient tracers. 3H/3He, chlorofluorocarbons, and 85Kr. Brenda Ekwurzel (1), Peter Schlosser (1), ...
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https://www.ldeo.columbia.edu/sites/default/files/uploaded/image/delmarva.pdf
Dating of shallow groundwater: comparison of the transient tracers. 3H/3He, chlorofluorocarbons, and 85Kr. Brenda Ekwurzel (1), Peter Schlosser (1), ...
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19
Estimating groundwater inflow and age characteristics in an ...
https://scholarworks.umt.edu/cgi/viewcontent.cgi?article=12317&context=etd
CFC and SF6 samples from 2016 were sent to the USGS Groundwater Age Dating. Laboratory in Reston, Virginia. Samples were analyzed with a Shimadzu GC-8A gas.
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https://scholarworks.umt.edu/cgi/viewcontent.cgi?article=12317&context=etd
CFC and SF6 samples from 2016 were sent to the USGS Groundwater Age Dating. Laboratory in Reston, Virginia. Samples were analyzed with a Shimadzu GC-8A gas.
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20
Dating with CFCs - Eawag
https://www.eawag.ch/en/department/wut/main-focus/environmental-isotopes/dating-with-cfcs
Solomon (1997) Recent advances in dating young groundwater: chlorofluorocarbons, 3H/3He and 85Kr. J. Hydrol., 191(1-4), 245-265. Chlorofluorocarbons CFCs.
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https://www.eawag.ch/en/department/wut/main-focus/environmental-isotopes/dating-with-cfcs
Solomon (1997) Recent advances in dating young groundwater: chlorofluorocarbons, 3H/3He and 85Kr. J. Hydrol., 191(1-4), 245-265. Chlorofluorocarbons CFCs.
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21
groundwater age dating: Topics by WorldWideScience.org
https://worldwidescience.org/topicpages/g/groundwater+age+dating.html
This method of dating groundwater has an advantage over using decay ... Coupling 3D groundwater modeling with CFC-based age dating to classify local ...
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https://worldwidescience.org/topicpages/g/groundwater+age+dating.html
This method of dating groundwater has an advantage over using decay ... Coupling 3D groundwater modeling with CFC-based age dating to classify local ...
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22
Worldwide Occurrence and Fate of Chlorofluorocarbons in ...
https://www.tandfonline.com/doi/abs/10.1080/10643380390814433
Chlorofluorocarbons (CFCs) are synthetic halogenated volatile organic ... The use as tracers for age dating of pristine groundwater has been ...
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https://www.tandfonline.com/doi/abs/10.1080/10643380390814433
Chlorofluorocarbons (CFCs) are synthetic halogenated volatile organic ... The use as tracers for age dating of pristine groundwater has been ...
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23
Exchange-Corrected CFC Dating of Stream Flow
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0309212
Precise groundwater dating using dissolved gases such as chlorofluorocarbons (CFCs) has become relatively common. If CFC groundwater ages were preserved in ...
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https://www.nsf.gov/awardsearch/showAward?AWD_ID=0309212
Precise groundwater dating using dissolved gases such as chlorofluorocarbons (CFCs) has become relatively common. If CFC groundwater ages were preserved in ...
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24
Variability in Atmospheric Chlorofluorocarbons (CCl3F and ...
https://pubs.acs.org/doi/10.1021/es980021h
Chlorofluorocarbons (CFCs) are frequently used as tracers for age dating of ... and CCl2F2) near a Large Urban Area: Implications for Groundwater Dating.
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https://pubs.acs.org/doi/10.1021/es980021h
Chlorofluorocarbons (CFCs) are frequently used as tracers for age dating of ... and CCl2F2) near a Large Urban Area: Implications for Groundwater Dating.
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25
4 Ground Water Dating and Isotope Chemistry | Hydrologic ...
https://www.nap.edu/read/6107/chapter/6
chlorofluorocarbons and combined 3H/3He to understanding shallow flow regimes. These methods are described in the following section. Deep Aquifers and Regional ...
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https://www.nap.edu/read/6107/chapter/6
chlorofluorocarbons and combined 3H/3He to understanding shallow flow regimes. These methods are described in the following section. Deep Aquifers and Regional ...
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26
The practicalities of using CFCs and SF6 for groundwater ...
https://typeset.io/pdf/the-practicalities-of-using-cfcs-and-sf6-for-groundwater-349kus2za3.pdf
is not possible the CFCs and SF6 may be useable as flow tracers. This paper focuses on the practicalities of dating and tracing groundwater movement using.
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https://typeset.io/pdf/the-practicalities-of-using-cfcs-and-sf6-for-groundwater-349kus2za3.pdf
is not possible the CFCs and SF6 may be useable as flow tracers. This paper focuses on the practicalities of dating and tracing groundwater movement using.
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27
Using man made gases as groundwater 'age' tracers
http://www.groundwateruk.org/Using-Man-Made-Gases-as-Groundwater-Tracers.aspx
CFCs and sulphur hexafluoride (SF6) are particularly useful for dating groundwaters less than 100 years old. Water extracted from a borehole or flowing from a ...
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http://www.groundwateruk.org/Using-Man-Made-Gases-as-Groundwater-Tracers.aspx
CFCs and sulphur hexafluoride (SF6) are particularly useful for dating groundwaters less than 100 years old. Water extracted from a borehole or flowing from a ...
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28
Chlorofluorocarbons and H/ He in groundwater - SciEngine
https://www.sciengine.com/doi/pdf/b4ccca958fce412ea7ae89d02281d7b0
groundwater and fraction of the young water in the mixture with old groundwater. Keywords: tritium/helium and CFC, tracing and dating, young groundwater.
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https://www.sciengine.com/doi/pdf/b4ccca958fce412ea7ae89d02281d7b0
groundwater and fraction of the young water in the mixture with old groundwater. Keywords: tritium/helium and CFC, tracing and dating, young groundwater.
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29
Groundwater age dating using multi-environmental tracers ...
https://pubag.nal.usda.gov/catalog/7735559
Groundwater age dating using multi-environmental tracers (SF6, CFC-11, CFC-12, δ18O, and δD) to investigate groundwater residence times and recharge processes ...
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https://pubag.nal.usda.gov/catalog/7735559
Groundwater age dating using multi-environmental tracers (SF6, CFC-11, CFC-12, δ18O, and δD) to investigate groundwater residence times and recharge processes ...
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30
Recent Publications - Noble Gas Lab - The University of Utah
https://noblegaslab.utah.edu/publications.php
Cook, P. G., and D. K. Solomon. 1995. Transport of atmospheric trace gases to the water table: Implications for groundwater dating with chlorofluorocarbons and ...
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https://noblegaslab.utah.edu/publications.php
Cook, P. G., and D. K. Solomon. 1995. Transport of atmospheric trace gases to the water table: Implications for groundwater dating with chlorofluorocarbons and ...
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31
What is groundwater dating? - Environment and Geology
http://nitishpriyadarshi.blogspot.com/2010/05/what-is-groundwater-dating.html
CFCs can be used to determine groundwater age because water that is in contact with the atmosphere picks up CFCs from the atmosphere. Thus, CFCs are ...
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http://nitishpriyadarshi.blogspot.com/2010/05/what-is-groundwater-dating.html
CFCs can be used to determine groundwater age because water that is in contact with the atmosphere picks up CFCs from the atmosphere. Thus, CFCs are ...
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32
Fact-sheet-CFC-prel.pdf - CSIRO people
https://people.csiro.au/-/media/People-Finder/S/A/Axel-Suckow/Fact-sheet-CFC-prel.pdf
Tracing groundwater movement ... An example of CFC in groundwater from the Northern Territory ... USGS Dating Laboratory: http://water.usgs.gov/lab/.
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https://people.csiro.au/-/media/People-Finder/S/A/Axel-Suckow/Fact-sheet-CFC-prel.pdf
Tracing groundwater movement ... An example of CFC in groundwater from the Northern Territory ... USGS Dating Laboratory: http://water.usgs.gov/lab/.
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33
Identification of recharge sources and dating of groundwater ...
https://www.osti.gov/etdeweb/biblio/20667922
... sources and dating of groundwater using isotope and CFC techniques ... contribution of the river Ravi in groundwater recharge have been ...
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https://www.osti.gov/etdeweb/biblio/20667922
... sources and dating of groundwater using isotope and CFC techniques ... contribution of the river Ravi in groundwater recharge have been ...
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34
CFC and SF6 Analysis | The Tritium Laboratory
https://tritium.earth.miami.edu/analytical-services/cfc-and-sf6-analysis/index.html
The technique of using CFC's and SF6 as transient tracers to derive estimates ... CFCs are potentially useful tracers of groundwater flow because they are ...
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https://tritium.earth.miami.edu/analytical-services/cfc-and-sf6-analysis/index.html
The technique of using CFC's and SF6 as transient tracers to derive estimates ... CFCs are potentially useful tracers of groundwater flow because they are ...
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35
Numerical simulations of dating young groundwater with ...
https://hero.epa.gov/hero/index.cfm/reference/details/reference_id/7971149
... of dating young groundwater with multiple atmospheric tracers: CFC-11, ... However, the numerical methods used for simulating groundwater ages based oil ...
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https://hero.epa.gov/hero/index.cfm/reference/details/reference_id/7971149
... of dating young groundwater with multiple atmospheric tracers: CFC-11, ... However, the numerical methods used for simulating groundwater ages based oil ...
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36
Infiltration of river water to a shallow aquifer investigated with H
http://iacweb.ethz.ch/staff/beyerleu/papers/Beyerle_JoH_1999.pdf
Keywords: River infiltration; Noble gases; Tritium–helium-3 dating; Chlorofluorocarbon; Recharge temperature; Oxygen. 1. Introduction. Young groundwater is ...
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http://iacweb.ethz.ch/staff/beyerleu/papers/Beyerle_JoH_1999.pdf
Keywords: River infiltration; Noble gases; Tritium–helium-3 dating; Chlorofluorocarbon; Recharge temperature; Oxygen. 1. Introduction. Young groundwater is ...
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37
Geohydrology, Water Quality - Tompkins County
https://tompkinscountyny.gov/files2/planning/committees/WRC/documents/Dryden_aquifer_presentation_041612.pdf
and Simulation of Groundwater ... AQUIFER. STUDY. AREA. The study area is. 5.3 mi long, 1.0 mi wide, and encompasses 5.4 ... CFC ground-water dating.
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https://tompkinscountyny.gov/files2/planning/committees/WRC/documents/Dryden_aquifer_presentation_041612.pdf
and Simulation of Groundwater ... AQUIFER. STUDY. AREA. The study area is. 5.3 mi long, 1.0 mi wide, and encompasses 5.4 ... CFC ground-water dating.
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38
Groundwater mean transit times, mixing and recharge in faulted
https://doi.org/10.5194/hess-2018-143
The CFC concentrations were analysed within 1 month of sample collection at the Groundwater Dating Laboratory of the. Institute of Geology and Geophysics, ...
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https://doi.org/10.5194/hess-2018-143
The CFC concentrations were analysed within 1 month of sample collection at the Groundwater Dating Laboratory of the. Institute of Geology and Geophysics, ...
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39
the 3h/3he groundwater age-dating method and applications
https://revistaig.emnuvens.com.br/derbyana/article/download/740/718
Groundwater age-dating with either CFCs or SF6 requires a detailed historical record of atmospheric concentrations to estimate the recharge year.
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https://revistaig.emnuvens.com.br/derbyana/article/download/740/718
Groundwater age-dating with either CFCs or SF6 requires a detailed historical record of atmospheric concentrations to estimate the recharge year.
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40
Tag Archives: CFC dating - Geological Digressions
http://www.geological-digressions.com/tag/cfc-dating/
Unfortunately, because of foolishness, greed, and ignorance, we have managed to contaminate many important aquifers.
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http://www.geological-digressions.com/tag/cfc-dating/
Unfortunately, because of foolishness, greed, and ignorance, we have managed to contaminate many important aquifers.
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41
Aquifer-scale controls on the distribution of nitrate and ...
https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1431&context=usgsstaffpub
ammonium in ground water near La Pine, Oregon, USA. Stephen R. Hinkle ... bons [CFCs] or 3H; 3H with 3He and 4He for 3H/3He age dating at selected sites).
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https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1431&context=usgsstaffpub
ammonium in ground water near La Pine, Oregon, USA. Stephen R. Hinkle ... bons [CFCs] or 3H; 3H with 3He and 4He for 3H/3He age dating at selected sites).
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42
2.5 Event Markers | Introduction to Isotopes and ...
https://books.gw-project.org/introduction-to-isotopes-and-environmental-tracers-as-indicators-of-groundwater-flow/chapter/event-markers/
CFCs were most useful as a groundwater dating tool until the 1990s, as until that time atmospheric concentrations of these compounds were increasing ...
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https://books.gw-project.org/introduction-to-isotopes-and-environmental-tracers-as-indicators-of-groundwater-flow/chapter/event-markers/
CFCs were most useful as a groundwater dating tool until the 1990s, as until that time atmospheric concentrations of these compounds were increasing ...
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43
Over a third of groundwater in USA public-supply aquifers is ...
https://www.nature.com/articles/s43247-022-00473-y
US drinking water aquifers with a large fraction of Anthropocene ... of SF6 and CFCs were from the U.S. Geological Survey Groundwater Dating ...
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https://www.nature.com/articles/s43247-022-00473-y
US drinking water aquifers with a large fraction of Anthropocene ... of SF6 and CFCs were from the U.S. Geological Survey Groundwater Dating ...
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44
Groundwater age of spring discharges under changing ...
https://iopscience.iop.org/article/10.1088/1748-9326/abd1a1
Figure S1 shows a historical record of atmospheric concentrations of CFCs observed by the Reston Groundwater Dating Laboratory of the US ...
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https://iopscience.iop.org/article/10.1088/1748-9326/abd1a1
Figure S1 shows a historical record of atmospheric concentrations of CFCs observed by the Reston Groundwater Dating Laboratory of the US ...
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45
Sampling of sub-seafloor aquifers by a temporary well for CFC ...
https://epic.awi.de/4211
Thedevice was designed to obtain pure groundwater samples from coarse sediments to be used fortracer investigations and CFC age dating.
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https://epic.awi.de/4211
Thedevice was designed to obtain pure groundwater samples from coarse sediments to be used fortracer investigations and CFC age dating.
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46
Groundwater Dating and Flow-Model Calibration in the Kern ...
https://ascelibrary.org/doi/10.1061/%28ASCE%291084-0699%282008%2913%3A11%281029%29
The CFC-based method for dating groundwater applied in this work assumes that percolating water recharging an aquifer is in equilibrium with ...
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https://ascelibrary.org/doi/10.1061/%28ASCE%291084-0699%282008%2913%3A11%281029%29
The CFC-based method for dating groundwater applied in this work assumes that percolating water recharging an aquifer is in equilibrium with ...
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47
Dating of shallow groundwater: Comparison of the transient ...
https://asu.pure.elsevier.com/en/publications/dating-of-shallow-groundwater-comparison-of-the-transient-tracers
This paper describes a direct comparison of apparent ages derived from 3H/3He, chlorofluorocarbons (CCl3F and CCl2F2), and 85Kr measurements in shallow ...
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https://asu.pure.elsevier.com/en/publications/dating-of-shallow-groundwater-comparison-of-the-transient-tracers
This paper describes a direct comparison of apparent ages derived from 3H/3He, chlorofluorocarbons (CCl3F and CCl2F2), and 85Kr measurements in shallow ...
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48
Groundwater Age Dating and Recharge Assessment
https://www.my-lei.com/groundwater-age-dating-and-recharge-assessment/
During recharge, water picks up a CFC signature based on the atmospheric concentration of CFCs, and groundwater retains its characteristic ...
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https://www.my-lei.com/groundwater-age-dating-and-recharge-assessment/
During recharge, water picks up a CFC signature based on the atmospheric concentration of CFCs, and groundwater retains its characteristic ...
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49
Use and application of CFC-11, CFC-12, CFC-113 and SF6 as ...
http://www.geosciencefrontiers.com/en/article/doi/10.1016/j.gsf.2018.02.017
The CFCs and SF6 are able to date groundwater up to ~100 years old with the caveat ... Keywords: Hydrogeology,; Environmental tracers,; Groundwater dating.
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http://www.geosciencefrontiers.com/en/article/doi/10.1016/j.gsf.2018.02.017
The CFCs and SF6 are able to date groundwater up to ~100 years old with the caveat ... Keywords: Hydrogeology,; Environmental tracers,; Groundwater dating.
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50
Nitrate Fingerprinting and Groundwater Age Determination ...
http://www.ycfcwcd.org/documents/NitrateFingerPrintingandGroundwaterAgeDecember2012.pdf
Loading of nitrate to groundwater in Yolo County was estimated in a previous study to ... age dating and characterization for comparison with the CFC data.
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http://www.ycfcwcd.org/documents/NitrateFingerPrintingandGroundwaterAgeDecember2012.pdf
Loading of nitrate to groundwater in Yolo County was estimated in a previous study to ... age dating and characterization for comparison with the CFC data.
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51
Occurrence and fate of chlorofluorocarbon plumes in ...
https://iahs.info/uploads/dms/12326.10-pp41-48-Hoehener--GQ69-.pdf
suggested that CFCs may be used similarly for age-dating of groundwater. We reviewed studies that report on CFCs in groundwater from 16 porous and.
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https://iahs.info/uploads/dms/12326.10-pp41-48-Hoehener--GQ69-.pdf
suggested that CFCs may be used similarly for age-dating of groundwater. We reviewed studies that report on CFCs in groundwater from 16 porous and.
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52
Variability in Atmospheric Chlorofluorocarbons (CCl3F and ...
http://www.soest.hawaii.edu/oceanography/faculty/ho/papers/ho_cfc.pdf
Variability in Atmospheric. Chlorofluorocarbons (CCl3F and. CCl2F2) near a Large Urban Area: Implications for Groundwater Dating. DAVID T. HO,* ,†,‡.
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http://www.soest.hawaii.edu/oceanography/faculty/ho/papers/ho_cfc.pdf
Variability in Atmospheric. Chlorofluorocarbons (CCl3F and. CCl2F2) near a Large Urban Area: Implications for Groundwater Dating. DAVID T. HO,* ,†,‡.
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53
Groundwater, Age of | Encyclopedia.com
https://www.encyclopedia.com/science/news-wires-white-papers-and-books/groundwater-age
Atmospheric concentrations of CFCs are not expected to decrease quickly, so CFC dating will continue to work for most young groundwater for many years to ...
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https://www.encyclopedia.com/science/news-wires-white-papers-and-books/groundwater-age
Atmospheric concentrations of CFCs are not expected to decrease quickly, so CFC dating will continue to work for most young groundwater for many years to ...
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54
Untitled
https://hal.inria.fr/insu-01728980v1/html_references
J. Böhlke, Groundwater recharge and agricultural contamination, ... The practicalities of using CFCs and SF6 for groundwater dating and tracing, ...
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https://hal.inria.fr/insu-01728980v1/html_references
J. Böhlke, Groundwater recharge and agricultural contamination, ... The practicalities of using CFCs and SF6 for groundwater dating and tracing, ...
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55
Groundwater Age and Groundwater Age Dating
https://www.gwb.com/pdf/pubs/AnnRev2008.pdf
Groundwater age dating takes advantage of the known decay rates ... Among the manufactured gases, chlorofluorocarbon compounds, or CFCs, and.
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https://www.gwb.com/pdf/pubs/AnnRev2008.pdf
Groundwater age dating takes advantage of the known decay rates ... Among the manufactured gases, chlorofluorocarbon compounds, or CFCs, and.
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56
Dating groundwater with trifluoromethyl ... - OUCI
https://ouci.dntb.gov.ua/en/works/7ARQdaw4/
Dating groundwater with trifluoromethyl sulfurpentafluoride (SF5CF3), sulfur hexafluoride (SF6), CF3Cl (CFC-13), and CF2Cl2(CFC-12) · List of references.
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https://ouci.dntb.gov.ua/en/works/7ARQdaw4/
Dating groundwater with trifluoromethyl sulfurpentafluoride (SF5CF3), sulfur hexafluoride (SF6), CF3Cl (CFC-13), and CF2Cl2(CFC-12) · List of references.
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57
characterization of groundwater from rice county, minnesota ...
https://gsa.confex.com/gsa/2005NC/webprogram/Paper87583.html
CHARACTERIZATION OF GROUNDWATER FROM RICE COUNTY, MINNESOTA, USING CFC DATING, HYDROGEN AND OXYGEN ISOTOPE ANALYSIS, AND ION CONCENTRATIONS.
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https://gsa.confex.com/gsa/2005NC/webprogram/Paper87583.html
CHARACTERIZATION OF GROUNDWATER FROM RICE COUNTY, MINNESOTA, USING CFC DATING, HYDROGEN AND OXYGEN ISOTOPE ANALYSIS, AND ION CONCENTRATIONS.
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58
Are You suprised ? - Carleton College
https://people.carleton.edu/~bhaileab/Geochemistry/FinalGeochemPaper.doc
Characterization of Groundwater from Rice County, Minnesota, using CFC dating, Hydrogen and Oxygen Isotope Analysis, and Ion Concentrations.
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https://people.carleton.edu/~bhaileab/Geochemistry/FinalGeochemPaper.doc
Characterization of Groundwater from Rice County, Minnesota, using CFC dating, Hydrogen and Oxygen Isotope Analysis, and Ion Concentrations.
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59
How to Estimate Mean Residence Times of Groundwater
https://cyberleninka.org/article/n/196086.pdf
The use of CFCs for dating of groundwater is based on known concentration in the atmosphere over the last 60 years, together with the observations that they ...
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https://cyberleninka.org/article/n/196086.pdf
The use of CFCs for dating of groundwater is based on known concentration in the atmosphere over the last 60 years, together with the observations that they ...
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60
Use of chlorofluorocarbons in hydrology | E-Library
https://library.wmo.int/index.php?lvl=notice_display&id=5734
Development of the chlorofluorocarbon (CFC) technique as a tool for dating groundwater has occurred over the past 20 years, and a number of research ...
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https://library.wmo.int/index.php?lvl=notice_display&id=5734
Development of the chlorofluorocarbon (CFC) technique as a tool for dating groundwater has occurred over the past 20 years, and a number of research ...
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61
Age dating of groundwater and application to the Southland ...
http://envirolink.govt.nz/assets/Envirolink/435-esrc120.pdf
Groundwater age is determined by measuring the concentrations of “tracers” such as tritium, CFCs and. SF. 6. , then fitting the concentration data to an age ...
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http://envirolink.govt.nz/assets/Envirolink/435-esrc120.pdf
Groundwater age is determined by measuring the concentrations of “tracers” such as tritium, CFCs and. SF. 6. , then fitting the concentration data to an age ...
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62
Groundwater recharge and residence times ... - J-Stage
https://www.jstage.jst.go.jp/article/geochemj/51/5/51_2.0469/_article
Keywords: apparent age, deep percolation, groundwater dating, environmental tracers, ... Czech Republic, using noble gases, 2H, 18O, 3H and CFCs.
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https://www.jstage.jst.go.jp/article/geochemj/51/5/51_2.0469/_article
Keywords: apparent age, deep percolation, groundwater dating, environmental tracers, ... Czech Republic, using noble gases, 2H, 18O, 3H and CFCs.
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63
Dating groundwater with dissolved silica and CFC ... - Hal Inrae
https://hal.inrae.fr/view/viewbyid/type/irstea/id/PUB00059274
While intermediate groundwater residence times are currently determined with atmospheric tracers such as chlorofluorocarbons (CFCs), these analyses are ...
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https://hal.inrae.fr/view/viewbyid/type/irstea/id/PUB00059274
While intermediate groundwater residence times are currently determined with atmospheric tracers such as chlorofluorocarbons (CFCs), these analyses are ...
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64
Hydrogeochemistry and CFC dating for investigation of seawater ...
https://pure.au.dk/portal/en/persons/soeren-m-kristiansen(96d56247-9432-4030-9387-cdb020665136)/publications/hydrogeochemistry-and-cfc-dating-for-investigation-of-seawater-intrusion-in-groundwater-at-liepaja-latvia(a6692ee6-7d2f-45e4-876f-b35bdafab36e)/export.html
AB - [21]Bikse, J, Kristiansen, SM, Delina, A (2013). . . KW - groundwater. KW - saltvand. KW - Vandforurening. M3 - Conference abstract for ...
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https://pure.au.dk/portal/en/persons/soeren-m-kristiansen(96d56247-9432-4030-9387-cdb020665136)/publications/hydrogeochemistry-and-cfc-dating-for-investigation-of-seawater-intrusion-in-groundwater-at-liepaja-latvia(a6692ee6-7d2f-45e4-876f-b35bdafab36e)/export.html
AB - [21]Bikse, J, Kristiansen, SM, Delina, A (2013). . . KW - groundwater. KW - saltvand. KW - Vandforurening. M3 - Conference abstract for ...
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65
Coupling 3D groundwater modeling with CFC-based age dating to ...
https://bretagne-environnement.fr/coupling-3d-groundwater-modeling-with-cfc-based-age-dating-classify-local-groundwater-circulation-an-unconfined-crystalline-aquifer
Coupling 3D groundwater modeling with CFC-based age dating to classify local groundwater circulation in an unconfined crystalline aquifer ...
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https://bretagne-environnement.fr/coupling-3d-groundwater-modeling-with-cfc-based-age-dating-classify-local-groundwater-circulation-an-unconfined-crystalline-aquifer
Coupling 3D groundwater modeling with CFC-based age dating to classify local groundwater circulation in an unconfined crystalline aquifer ...
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66
Radiocarbon dating groundwater - AMS lab Beta Analytic
https://www.radiocarbon.com/groundwater-carbon-dating.htm
Annual or semi-annual groundwater radiocarbon dating is recommended. Water Well carbon dating. The application of radiocarbon dating to ground water analysis ...
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https://www.radiocarbon.com/groundwater-carbon-dating.htm
Annual or semi-annual groundwater radiocarbon dating is recommended. Water Well carbon dating. The application of radiocarbon dating to ground water analysis ...
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67
Controlling factors and driving mechanisms of nitrate contamination ...
https://mining.itb.ac.id/publication/controlling-factors-and-driving-mechanisms-of-nitrate-contamination-in-groundwater-system-of-bandung-basin-indonesia-deduced-by-combined-use-of-stable-isotope-ratios-cfc-age-dating-and-socioeconom/
... mechanisms of nitrate contamination in groundwater system of Bandung Basin, Indonesia, deduced by combined use of stable isotope ratios, CFC age dating, ...
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https://mining.itb.ac.id/publication/controlling-factors-and-driving-mechanisms-of-nitrate-contamination-in-groundwater-system-of-bandung-basin-indonesia-deduced-by-combined-use-of-stable-isotope-ratios-cfc-age-dating-and-socioeconom/
... mechanisms of nitrate contamination in groundwater system of Bandung Basin, Indonesia, deduced by combined use of stable isotope ratios, CFC age dating, ...
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68
Groundwater Age Dating - Groundwater Age - Le Mont Blanc
http://lemontblancbanquets.ca/groundwater-age-dating/
If mixing of groundwater dating old age occurs, the CFC concentration in the ground-water sample must be divided by laboratory reston reston young water in ...
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http://lemontblancbanquets.ca/groundwater-age-dating/
If mixing of groundwater dating old age occurs, the CFC concentration in the ground-water sample must be divided by laboratory reston reston young water in ...
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69
Groundwater Age Dating - YouTube
https://www.youtube.com/watch?v=xmRavmpB2KA
Pacific Northwest National Laboratory
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https://www.youtube.com/watch?v=xmRavmpB2KA
Pacific Northwest National Laboratory
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70
Hydrogeology and Groundwater Modeling, Second Edition
https://books.google.com/books?id=RPvRW4hHQSMC&pg=PA390&lpg=PA390&dq=cfc+dating+groundwater&source=bl&ots=8LPI-sG4PJ&sig=ACfU3U2-gJ-fSclwIyvGBvWcTeUbtWHnDw&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiOAhAD
Therefore , CFC dating of modern groundwater will become less precise in the future as concentrations of CFC compounds used for dating decline further : the ...
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https://books.google.com/books?id=RPvRW4hHQSMC&pg=PA390&lpg=PA390&dq=cfc+dating+groundwater&source=bl&ots=8LPI-sG4PJ&sig=ACfU3U2-gJ-fSclwIyvGBvWcTeUbtWHnDw&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiOAhAD
Therefore , CFC dating of modern groundwater will become less precise in the future as concentrations of CFC compounds used for dating decline further : the ...
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71
Regional Ground-Water Quality - Page 278 - Google Books Result
https://books.google.com/books?id=ZBmSfpFZNZcC&pg=PA278&lpg=PA278&dq=cfc+dating+groundwater&source=bl&ots=vo8m5XFHsp&sig=ACfU3U0wtUr7OfgSQxhKKY1DHFp_fsiNEw&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiRAhAD
CFC dating has potentially the of environmental tracers must be carefully longest dating period of the three environconsidered in relation to the specific ...
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https://books.google.com/books?id=ZBmSfpFZNZcC&pg=PA278&lpg=PA278&dq=cfc+dating+groundwater&source=bl&ots=vo8m5XFHsp&sig=ACfU3U0wtUr7OfgSQxhKKY1DHFp_fsiNEw&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiRAhAD
CFC dating has potentially the of environmental tracers must be carefully longest dating period of the three environconsidered in relation to the specific ...
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72
Accuracy of CFC groundwater dating in a crystalline bedrock aquifer ...
https://ur.booksc.eu/book/7763610/ebd65a
Dating groundwater with dissolved silica and CFC concentrations in crystalline aquifers | Marçais, Jean; Gauvain, Alexandre; Labasque, Thierry; Abbott, ...
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https://ur.booksc.eu/book/7763610/ebd65a
Dating groundwater with dissolved silica and CFC concentrations in crystalline aquifers | Marçais, Jean; Gauvain, Alexandre; Labasque, Thierry; Abbott, ...
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73
Groundwater Quality: Natural and Enhanced Restoration of ...
https://books.google.com/books?id=T3qcfAynZL4C&pg=PA41-IA2&lpg=PA41-IA2&dq=cfc+dating+groundwater&source=bl&ots=5LiPBZBGs6&sig=ACfU3U2ODejFx5Dwol9iFCKw2eBsPbv2RA&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiLAhAD
In hydrogeology , it has been suggested that CFCs may be used similarly for age - dating of groundwater . We reviewed studies that report on CFCs in ...
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https://books.google.com/books?id=T3qcfAynZL4C&pg=PA41-IA2&lpg=PA41-IA2&dq=cfc+dating+groundwater&source=bl&ots=5LiPBZBGs6&sig=ACfU3U2ODejFx5Dwol9iFCKw2eBsPbv2RA&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiLAhAD
In hydrogeology , it has been suggested that CFCs may be used similarly for age - dating of groundwater . We reviewed studies that report on CFCs in ...
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74
11.8: Groundwater - Geosciences LibreTexts
https://geo.libretexts.org/Bookshelves/Geology/Book%3A_An_Introduction_to_Geology_(Johnson_Affolter_Inkenbrandt_and_Mosher)/11%3A_Water/11.08%3A_Groundwater
A combination of a place to put water (porosity) and the ability to move water (permeability) makes a good aquifer—a rock unit or sediment that ...
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https://geo.libretexts.org/Bookshelves/Geology/Book%3A_An_Introduction_to_Geology_(Johnson_Affolter_Inkenbrandt_and_Mosher)/11%3A_Water/11.08%3A_Groundwater
A combination of a place to put water (porosity) and the ability to move water (permeability) makes a good aquifer—a rock unit or sediment that ...
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75
Palaeowaters in Coastal Europe: Evolution of Groundwater ...
https://books.google.com/books?id=JSVOcfCVQVYC&pg=PA277&lpg=PA277&dq=cfc+dating+groundwater&source=bl&ots=tlQdvBGr5M&sig=ACfU3U1ktA9UNhwcySDLTRu3EzT_F86u1Q&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiNAhAD
1981 ; Back & Baedecker 1989 ; Appelo & aquifers , so the use of CFC for absolute Postma 1993 ; Hallberg & Keeney 1993 ; Mackay & groundwater dating is ...
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https://books.google.com/books?id=JSVOcfCVQVYC&pg=PA277&lpg=PA277&dq=cfc+dating+groundwater&source=bl&ots=tlQdvBGr5M&sig=ACfU3U1ktA9UNhwcySDLTRu3EzT_F86u1Q&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiNAhAD
1981 ; Back & Baedecker 1989 ; Appelo & aquifers , so the use of CFC for absolute Postma 1993 ; Hallberg & Keeney 1993 ; Mackay & groundwater dating is ...
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76
Groundwater Age - Page 108 - Google Books Result
https://books.google.com/books?id=k-zvz1k2wJIC&pg=PA108&lpg=PA108&dq=cfc+dating+groundwater&source=bl&ots=_IiwLs_5oX&sig=ACfU3U1jR2bEfR5oBg-2Ll487hsyVSP8hg&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiQAhAD
From 1992, the application of CFCs in groundwater studies especially for age-dating and determination of rainfall recharge became important; e.g., ...
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https://books.google.com/books?id=k-zvz1k2wJIC&pg=PA108&lpg=PA108&dq=cfc+dating+groundwater&source=bl&ots=_IiwLs_5oX&sig=ACfU3U1jR2bEfR5oBg-2Ll487hsyVSP8hg&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiQAhAD
From 1992, the application of CFCs in groundwater studies especially for age-dating and determination of rainfall recharge became important; e.g., ...
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77
Water-Rock Interaction XIII - Page 21 - Google Books Result
https://books.google.com/books?id=UF7vBQAAQBAJ&pg=PA21&lpg=PA21&dq=cfc+dating+groundwater&source=bl&ots=iEHG7eRr4T&sig=ACfU3U38VKe9tf_agcXIlZsGOEzzRReKeA&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiPAhAD
7 concLUSIonS Like all groundwater dating methods, the cFcs and SF6 have advantages and disadvantages. a SWot analysis reveals the following.
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https://books.google.com/books?id=UF7vBQAAQBAJ&pg=PA21&lpg=PA21&dq=cfc+dating+groundwater&source=bl&ots=iEHG7eRr4T&sig=ACfU3U38VKe9tf_agcXIlZsGOEzzRReKeA&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiPAhAD
7 concLUSIonS Like all groundwater dating methods, the cFcs and SF6 have advantages and disadvantages. a SWot analysis reveals the following.
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78
Groundwater Chemical Methods for Recharge Studies - Part 2
https://books.google.com/books?id=r8xrQriUCVgC&pg=PT17&lpg=PT17&dq=cfc+dating+groundwater&source=bl&ots=udKF5XyQv9&sig=ACfU3U3J0gmtuFqBro37i4WIOt-alKelQw&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiMAhAD
The sensitivity of the CFC dating method depends on the rate of change of the atmospheric CFC concentration with time, and thus the ability to date very ...
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https://books.google.com/books?id=r8xrQriUCVgC&pg=PT17&lpg=PT17&dq=cfc+dating+groundwater&source=bl&ots=udKF5XyQv9&sig=ACfU3U3J0gmtuFqBro37i4WIOt-alKelQw&hl=en&sa=X&ved=2ahUKEwihncOt89b7AhVwSGwGHey9CIYQ6AF6BQiMAhAD
The sensitivity of the CFC dating method depends on the rate of change of the atmospheric CFC concentration with time, and thus the ability to date very ...
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79
Radiocarbon Dating of Groundwater - ppt video online ...
https://slideplayer.com/slide/1587826/
Presentation on theme: "Radiocarbon Dating of Groundwater"— Presentation ... Elisabetta Boaretto Radiocarbon Dating and Cosmogenic Isotopes ...
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https://slideplayer.com/slide/1587826/
Presentation on theme: "Radiocarbon Dating of Groundwater"— Presentation ... Elisabetta Boaretto Radiocarbon Dating and Cosmogenic Isotopes ...
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80
11.1 Groundwater and Aquifers – Principles of Earth Science
https://openoregon.pressbooks.pub/earthscience/chapter/11-1-groundwater-and-aquifers/
› chapter › 11-1-gr...
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https://openoregon.pressbooks.pub/earthscience/chapter/11-1-groundwater-and-aquifers/
› chapter › 11-1-gr...
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