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海洋地球物理方法综合研究北极大陆架天然气排放过程。

A Complex of Marine Geophysical Methods for Studying Gas Emission Process on the Arctic Shelf.

机构信息

Shirshov Institute of Oceanology, Russian Academy of Sciences, 36, Nakhimovskiy Prospekt, 117997 Moscow, Russia.

V.I. Il'ichev Pacific Oceanological Institute, Far Eastern Branch of the Russian Academy of Sciences, 43, Baltijskaya St., 690041 Vladivostok, Russia.

出版信息

Sensors (Basel). 2023 Apr 10;23(8):3872. doi: 10.3390/s23083872.

DOI:10.3390/s23083872
PMID:37112211
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10142650/
Abstract

The Russian sector of the arctic shelf is the longest in the world. Quite a lot of places of massive discharge of bubble methane from the seabed into the water column and further into the atmosphere were found there. This natural phenomenon requires an extensive complex of geological, biological, geophysical, and chemical studies. This article is devoted to aspects of the use of a complex of marine geophysical equipment applied in the Russian sector of the arctic shelf for the detection and study of areas of the water and sedimentary strata with increased saturation with natural gases, as well as a description of some of the results obtained. This complex contains a single-beam scientific high-frequency echo sounder and multibeam system, a sub-bottom profiler, ocean-bottom seismographs, and equipment for continuous seismoacoustic profiling and electrical exploration. The experience of using the above equipment and the examples of the results obtained in the Laptev Sea have shown that these marine geophysical methods are effective and of particular importance for solving most problems related to the detection, mapping, quantification, and monitoring of underwater gas release from the bottom sediments of the shelf zone of the arctic seas, as well as the study of upper and deeper geological roots of gas emission and their relationship with tectonic processes. Geophysical surveys have a significant performance advantage compared to any contact methods. The large-scale application of a wide range of marine geophysical methods is essential for a comprehensive study of the geohazards of vast shelf zones, which have significant potential for economic use.

摘要

北极大陆架的俄罗斯部分是世界上最长的。在那里发现了相当多的海底大量排放气泡甲烷进入水柱并进一步进入大气的地方。这种自然现象需要进行广泛的地质、生物、地球物理和化学研究。本文致力于应用于北极大陆架俄罗斯部分的海洋地球物理设备综合应用的各个方面，用于探测和研究水层和沉积地层中天然气体饱和度增加的区域，并描述了一些已获得的结果。该综合系统包括单波束科学高频回声测深仪和多波束系统、海底浅层剖面仪、海底地震仪以及连续地震声学测深和电勘探设备。使用上述设备的经验以及在拉普捷夫海获得的结果示例表明，这些海洋地球物理方法是有效的，对于解决与从北极海大陆架区海底沉积物中检测、绘制、量化和监测水下气体释放以及研究气体排放的上部和更深地质根源及其与构造过程的关系等大多数问题特别重要。与任何接触方法相比，地球物理调查具有显著的性能优势。广泛应用一系列海洋地球物理方法对于全面研究具有巨大经济利用潜力的广阔大陆架区域的地质灾害至关重要。

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Sensors (Basel). 2021 Jun 9;21(12):3979. doi: 10.3390/s21123979.
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