Noble Gases Groundwater recharge temperatures He Ne Ar Kr Xe.

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Presentation transcript:

Noble Gases Groundwater recharge temperatures He Ne Ar Kr Xe

Gaz nobles Groupe 18

Noble gas solubilities and temperature

Solubility in Brines

PINCH IT!

Diffusion Sampler Diffusion Sampler Design

Ne Diffusion Sampler

Case study – Bunter Sandstone, UK

Down-gradient evolution of a 14 C and  13 C in groundwaters from the Bunter sandstone. The inverse correlation of a14C with d13C demonstrates the effect of non-decay reaction in attenuating 14C. Fig. 8-9 Down-gradient evolution of a  C and  13 C in groundwaters from the Bunter sandstone. The inverse correlation of a  C with  13 C demonstrates the effect of non-decay reaction in attenuating  C.

Noble gas isolation and measurement by quadrupole mass spectrometry Ian, I don’t think it’ll work on Mars.

Isotope dilution method AtmosphereSpike Vol - unknown Vol - known 4 He 3 He 20 Ne 22 Ne 40 Ar 36 Ar 84 Kr 78 Kr 132 Xe 136 Xe Andrews, J.N., N. Hussain, and M.J. Youngman, Atmospheric and radiogenic gases in groundwaters from the Stripa granite. Geochimica et Cosmochimica Acta 53, Poole, Jason C., Gavin McNeill, Stephen R. Langman, and Frank Dennis (1997). Analysis of noble gas in water using a quadrupole mass spectrometer in static mode. Applied Geochemistry 12: Pinti, Daniele L., and Eddy Van Drom (1998). PALEOTEMP: A Mathematica® program for evaluating paleotemperatures from the concentration of atmosphere-derived noble gases in ground water. Computers and Geosciences 24:

Isotope Dilution AtmosphereSpike Vol - unknown Vol - known 4 He 3 He 20 Ne 22 Ne 40 Ar 36 Ar 84 Kr 78 Kr 132 Xe 136 Xe R 84/78 = —–––– V Kr(atm) V Kr(spike)

3 He 4 He geothermal studies groundwater age ( 4 He from  decay) tritium/He dynamics

Clark, I.D. and Phillips, R.J., Geochemical and 3 He/ 4 He evidence for mantle and crustal contributions to geothermal fluids in the western Canadian continental margin. Journal of Volcanology and Geothermal Research, 104: