Underground production of radionuclides in the Milk River aquifer, Alberta, Canada

Andrews, J.N.; Florkowski, T.; Lehmann, B.E.; Loosli, H.H. (1991). Underground production of radionuclides in the Milk River aquifer, Alberta, Canada. Applied geochemistry, 6(4), pp. 425-434. Pergamon 10.1016/0883-2927(91)90042-N

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Most cosmogenic radionuclides that may be used to estimate groundwater ages in excess of 100 ka are also produced underground byin situ nuclear reactions. Radioactive equilibrium betweenin situ production and decay would be approached within such long residence times. Radionuclide production byin situ nuclear reactions within the groundwater and within its host rock has been calculated theoretically and compared with some measured radionuclide contents of the groundwater. The fractional transfer ofin situ produced37Ar,39Ar and222Rn from rock to groundwater necessary to account for the total measured groundwater contents were found to be similar, although site specific. The implications for radionuclide release mechanisms and for groundwater dating by the use of cosmogenic radionuclides, including those which are applicable for very old groundwaters (36Cl,81Kr,129I), are discussed.

Item Type:	Journal Article (Original Article)
Division/Institute:	08 Faculty of Science > Physics Institute > Climate and Environmental Physics
UniBE Contributor:	Lehmann, Bernhard, Loosli, Heinz Hugo
Subjects:	500 Science > 530 Physics
ISSN:	0883-2927
Publisher:	Pergamon
Language:	English
Submitter:	BORIS Import 2
Date Deposited:	15 Sep 2021 10:14
Last Modified:	05 Dec 2022 15:52
Publisher DOI:	10.1016/0883-2927(91)90042-N
URI:	https://boris.unibe.ch/id/eprint/158562