Specifics of the late cenozoic geochemical evolution of chloride calcium brines in the Olenek cryoartesian basin


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Аннотация

One of the probable mechanisms that controls the composition of highly mineralized chloride groundwaters is studied using physicochemical numerical simulations of equilibria in water–rock systems. Concentrated brines in the Olenek cryoartesian basin in the northeastern Siberian Platform are determined to be undersaturated with respect of major rock-forming minerals, which suggests that the metamorphosed sedimentary brines should have been diluted by meteoric waters during a certain evolutionary episode of the permafrost zone of the basin in the Late Pleistocene and Holocene.

Авторлар туралы

S. Alekseev

Institute of the Earth’s Crust, Siberian Branch

Email: lalex@crust.irk.ru
Ресей, Irkutsk, 664033

L. Alekseeva

Institute of the Earth’s Crust, Siberian Branch

Хат алмасуға жауапты Автор.
Email: lalex@crust.irk.ru
Ресей, Irkutsk, 664033

S. Shvartsev

Tomsk Affiliate of Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch; Tomsk Polytechnical University

Email: lalex@crust.irk.ru
Ресей, Tomsk, 634055; Tomsk, 6340505

N. Trifonov

Tomsk Affiliate of Trofimuk Institute of Petroleum Geology and Geophysics, Siberian Branch; Tomsk Polytechnical University

Email: lalex@crust.irk.ru
Ресей, Tomsk, 634055; Tomsk, 6340505

E. Sidkina

Vernadsky Institute of Geochemistry and Analytical Chemistry (GEOKhI)

Email: lalex@crust.irk.ru
Ресей, Moscow, 119991

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