Issues of the Cenozoic Stratigraphy of Western Kamchatka and the stages of evolution of the foraminifera paleocommunities-Reference-Cited by-同舟云学术

Issues of the Cenozoic Stratigraphy of Western Kamchatka and the stages of evolution of the foraminifera paleocommunities

Published:2020-10-28 Issue:5 Volume: Page:17-24
ISSN:0579-9406
Container-title:Moscow University Bulletin. Series 4. Geology
language:
Short-container-title:Vestnik Moskovskogo universiteta. Seriâ 4, Geologiâ

Author:

Bordunov S. I.¹,Dmitrieva T. V.²,Fregatova N. A.²

Affiliation:

1. Lomonosov Moscow State University

2. JSC VNIGRI

Abstract

The study of the paleocommunities of foraminifera of the reference section of the Paleogene-Neogene of the Kvachin Bay in Western Kamchatka made it possible, based on the qualitative composition and quantitative ratios of the species encountered, to identify 13 layers with foraminifera corresponding to certain section intervals and to establish their successive change. Layers with foraminifera are combined into 4 complex zones. In terms of distribution, the identified zones are regional and can traced in adjacent regions. The change in paleocommunities corresponds to the process of evolutionary development of foraminifera, as well as a change in paleoenvironments. The noted changes in the composition and structure of zonal communities reflected in a certain staged development of microfauna.

Publisher

Faculty of Geology Lomonosov Moscow State University

Subject

General Earth and Planetary Sciences,General Environmental Science

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