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Bottom sediments and pore waters near a hydrothermal vent in Lake Baikal (Frolikha Bay)

Russian Geology and Geophysics

By:
, , , ,
DOI: 10.1016/j.rgg.2006.04.001

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Abstract

We discuss the redox environments and the compositions of bottom sediments and sedimentary pore waters in the region of a hydrothermal vent in Frolikha Bay, Lake Baikal. According to our results, the submarine vent and its companion nearby spring on land originate from a common source. The most convincing evidence for their relation comes from the proximity of stable oxygen and hydrogen isotope compositions in pore waters and in the spring water. The isotope composition indicates a meteoric origin of pore waters, but their major- and minor-element chemistry bears imprint of deep water which may seep through permeable faulted crust. Although pore waters near the submarine vent have a specific enrichment in major and minor constituents, hydrothermal discharge at the Baikal bottom causes a minor impact on the lake water chemistry, unlike the case of freshwater geothermal lakes in the East-African Rift and North America. ?? 2007.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Bottom sediments and pore waters near a hydrothermal vent in Lake Baikal (Frolikha Bay)
Series title:
Russian Geology and Geophysics
DOI:
10.1016/j.rgg.2006.04.001
Volume
48
Issue:
3
Year Published:
2007
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Russian Geology and Geophysics
First page:
237
Last page:
246
Number of Pages:
10