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UDC (552.5:551.72):(550.83+550.822)(571.51)
STRATIFICATION OF THE VENDIAN-RIPHEAN INTERVAL IN LOGS ACQUIRED AT THE EASTERN SLOPE OF THE KAMO ARCH
The paper discusses stratification of the lower Vendian and uppermost Riphean in the deep well logs acquired at the eastern slope of the Kamo arch located in the axial part of the Baikit anteclise. The author has analyzed core data from a number of wells and made stratification and correlation of the terrigenous Vendian deposits in well columns based on integrated interpretation of core and geophysical well logging data. The work resulted in justification of stratification of new wells logs drilled in 2008–2011 (Shushukskaya-1, Podporozhnaya-1 and 2) and revision of parametric Taiginskaya-1 well log, which was the first well at the Baikit anteclise drilled in 1970-1971. The extension of the Vanavarka Formation was determined within the Shushukskaya and Podporozhnaya areas. It was found to be absent at the Taiginskaya area.
Key words: terrigenous Vendian, Vanavarka Formation, Oskoba Formation, Kamo arch, Baikit anteclise.
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