LATERAL MIGRATION OF FLUIDS AND INTENSITY OF SECONDARY KAOLINISATION IN TERRIGENOUS DEPOSITS OF THE TOMSK REGION

I. A. Melnik

Tomsk Branch of the Siberian Research Institute of Geology, Geophysics and Mineral Resources, Novosibirsk

The paper discusses the aspects of lateral migration of fluids in rock strata. It is established that the intensity of secondary kaolinisation in the Jurassic deposits may indicate fluid migration controlled by basement faulting. Numerical relations of averaged intensity of secondary kaolinisation in the Cretaceous sandstones and Jurassic deposits depend on the quality of a seal (Bazhenovskaya and Maryanovskaya formations) and presence or absence of faults and fractures therein.

Key words: Bazhenovskaya Formation, Maryanovskaya Formation, fluid migration, secondary kaolinisation, seal quality, geophysical well logging.

DOI 10.20403/2078-0575-2016-4-9-14