Signs of presence of subaqueous gas hydrates in past geological epochs and their connection with changes in paleoclimate
UDC: 551
DOI: 10.33285/2073-9028-2022-2(307)-92-101
Authors:
AFANASYEVA MARIA A.
1,
SAMOJLOVA ANNA V.2
1 Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russian Federation
2 Institute of Oil and Gas Problems RAS, Moscow, Russian Federation
Keywords: subaqueous gas hydrates, bottom sediments, Phanerozoic eonotema, paleoclimate, sedimentary rocks, impact on organisms
Annotation:
Based on publicly available research data, the article attempts to establish the connection of paleoclimatic changes with the processes of destabilization of subaqueous gas hydrates in Phanerozoic time, and also proposes a methodological basis for detecting signs of their presence in ancient sedimentary rocks. The appearance of new data on the conditions of existence and destruction of gas hydrates allows us to identify a number of diagnostic signs indicating their presence, as well as to identify zones and times of maximum destabilization of gas hydrate accumulations of the past. An important aspect of the research is to establish the role and significance of the processes of destruction of gas hydrates, which served as a catalyst for global processes in the geological past.
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