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HIGH RESOLUTION SEISMIC STUDIES OF SHALLOW LAKE SABAKTY (RUSSIA).

Krylov Pavel

First published: 2019-12-05https://doi.org/10.5593/sgem2019v/4.2/s06.031View metrics

Abstract

Seismoacoustic studies are used to solve a wide range of different tasks, such as studying the bottom of water bodies and bottom sediments, detecting sunken objects, designing various structures (pipelines, port facilities, etc.), estimating the thickness of sapropel deposits, calculating their reserves, etc. In terms of paleoclimatic studies, the importance of such studies is increasing. The study of sediments of continental water bodies allows to get preliminary information about climate changes in the region with a very high resolution. Seismoacoustic profiling allows remote characterization of lake sediments stratigraphy due to the recordings of acoustic waves reflected from the lake bottom and underlying layers. Seismoacoustic studies were conducted to detect bottom sediments and choose the best place for core sampling in Lake Sabakty. According to seismic data the depth of the lake is 7 meters. The thickness of bottom sediments is more than 4.5 m, which indicates the great age of the lake. Thus, the lake is suitable for studying climate changes in the past for this region. The presence of gas saturation in bottom sediments indicate a high content of organic matter. Of great interest are areas of local uplifts where gas saturation in sediments is observed on seismic sections. This is probably due to sludge swelling due to gas accumulation.

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Publication details

Title
HIGH RESOLUTION SEISMIC STUDIES OF SHALLOW LAKE SABAKTY (RUSSIA).
Authors
Krylov Pavel
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Energy and Clean Technologies
Publisher
STEF92 Technology
Year
2019
Pages
229-234
SWS Citekey
Krylov20196229234
ISSN
1314-2704
ISBN
978-619-7408-98-0
Language
en
Publication type
Conference Paper
Keywords
lakesedimentsseismoacousticgasorganic matter
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