SUBSTANTIATION OF NEW UPPER JURASSIC KHARAMPUR FORMATION IN THE PUR-TAZ INTERSTREAM AREA IN THE NORTH OF WESTERN SIBERIA

A. A. Syurin, A. L. Beisel, G. G. Shemin

In the paper, the authors substantiate the newly identified Kharampur Formation in the Kharampur facies region of the Pur-Taz interstream area in the north of West Siberia. The cross-sections of Kharampurskaya 310 well and additional wells 315 and 332 were selected as a stratotype. These cross-sections are characterised by the most comprehensive core data, paleontological age determinations, and well logging data. Three correlation profiles were generated, which display correlation of the formation identified with the coeval deposits in the adjacent structural-facies regions.

Key words: West Siberia, Upper Jurassic, Kharampur Formation, stratotype, paleontological age determination, detailed correlation.

DOI 10.20403/2078-0575-2016-3-68-78