Cold Seeps and Heat Flow: Gas Hydrate Provinces Offshore Sakhalin Island

Gas hydrates were found in bottom sediments on the western slope of the Kuril Basin from the side of the Terpeniya Gulf (Okhotsk Sea) at 1020 m depths during expeditions in 2012 and 2013. However, on the eastern slope of the Tatar Strait, gas hydrates were sampled at an unusually shallow 322 m depth...

Full description

Bibliographic Details
Published in:Water
Main Authors: Nadezhda Syrbu, Andrey Kholmogorov, Elena Maltseva, Anna Venikova
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2024
Subjects:
methane
gas hydrate
provinces
heat flow
cold seep
currents
Hydraulic engineering
TC1-978
Water supply for domestic and industrial purposes
TD201-500
Okhotsk
okhotsk sea
Sakhalin
Online Access:https://doi.org/10.3390/w16020213
https://doaj.org/article/0e3c9251eaac416baa8a4adb7976837b
Description
Summary:Gas hydrates were found in bottom sediments on the western slope of the Kuril Basin from the side of the Terpeniya Gulf (Okhotsk Sea) at 1020 m depths during expeditions in 2012 and 2013. However, on the eastern slope of the Tatar Strait, gas hydrates were sampled at an unusually shallow 322 m depth. During our research, we identified gas hydrate provinces based on both bottom water and sediment temperature measurement data and heat flow, earthquake, cold seep and sea current data analyses. These provinces have similar hydrological regimes, providing suitable temperature conditions for the existence of gas hydrates, to those at a 322 m depth in the Tatar Strait (Japan Sea) and at 725 and 1020 m depths on the slope of the Kuril Basin (Okhotsk Sea).

Similar Items