Hydrocarbon gases in seafloor sediments of the TATAR strait, the northern sea of Japan

Yatsuk, A. V.; Shakirov, R. B.; Gresov, A. I.; Obzhirov, A.

doi:10.1007/s00367-019-00628-5

Cited by 15 publications

(15 citation statements)

References 28 publications

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“…In nature, these hydrates form naturally in the permafrost and ocean depths. [2][3][4][5][6][7] The natural hydrates mainly comprise methane gas. 8 Natural hydrates are ascertained to be a future energy source if used with feasible technology and will have economic value.…”

Section: Gas Hydratesmentioning

confidence: 99%

Enrichment of gas storage in clathrate hydrates by optimizing the molar liquid water–gas ratio

Kiran

Prasad

2022

RSC Adv.

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Section: Gas Hydratesmentioning

confidence: 99%

Enrichment of gas storage in clathrate hydrates by optimizing the molar liquid water–gas ratio

Kiran

Prasad

2022

RSC Adv.

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“…Our study area is located between 47.5 o N and 48.5 o N in Tatar Strait (Figure 1C), including the eastern margin of the strait where abundant gas seep plumes are located, deeper central portion of the trough, and seep-free portion of the trough on the eastern margin (Shakirov et al, 2019;Yatsuk et al, 2020). The water depth is sufficient in the study areas to preserve the vertical water mass structure (Danchenkov, 2004), and the study area also includes the northern portion of the deep Tatar Trough.…”

Section: Study Areamentioning

confidence: 99%

Ocean Dynamics and Methane Plume Activity in Tatar Strait, Far Eastern Federal District, Russia as Revealed by Seawater Chemistry, Hydroacoustics, and Noble Gas Isotopes

et al. 2022

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This investigation presents methane, noble gas isotopes, CTD, and stable isotopic data for water samples collected in Niskin bottles at Tatar Strait during the spring seasons of 2015 and 2019 onboard the Russian R/V Akademik M.A. Lavrentyev. The results are compared to previous research carried out in 1999 in a nearby portion of the Strait and demonstrate that salinity and temperature can change appreciably. The CTD data from 1999 shows warm surface waters underlain by cold subsurface waters. In contrast, the 2015 data show the CTD data that show warm temperatures and high salinity extending down from the surface well into intermediate waters, while the 2019 data show cold surface waters underlain by even colder subsurface waters. CTD data collected above active gas plume sites along Sakhalin Island’s western shore show no substantial difference in temperature or salinity from the non-plume sites, and the methane concentrations at all of the measured sites are significantly above saturation, even in the shallow waters. Hydroacoustic data also suggest the presence of free gas and gas hydrate–coated methane bubbles from the seafloor at least to the base of upper intermediate waters. All of the intermediate and deep Japan Sea Proper waters in Tatar Strait still retain tritiogenic 3He, similar to that observed throughout much of the Japan Sea, indicating limited vertical exchange between these layers and surface waters. An analysis of the δ13C of dissolved inorganic carbon in the seawater shows that positive values are limited to surface waters and that the waters become progressively more depleted in 13C with depth. The results are consistent with research over the past several decades which has shown that ventilation of intermediate and deep Japan Sea Proper water is somewhat limited, while both the temperature and salinity of surface and subsurface water layers within the strait are sensitive to the balance between cold, less saline waters contributed by the Amur River/Primorye Current from the north and warm, saline waters contributed by the Tsushima Current from the south.

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“…The first group of papers focuses on gas emissions from the seafloor. The distribution of hydrocarbon gasses is examined from the Tatar Strait of the northern Sea of Japan (Yatsuk et al 2020), indicating a large-scale degassing zone that coincides with a variety of free gas indicators. Römer et al (2020) examine gas bubble emissions from the Black Sea and show how almost all free gas flares are limited to below depths of 100-m depth.…”

Section: Special Issue Overviewmentioning

confidence: 99%

Gas in Marine Sediments (GIMS): past, current, and future (contributions from GIMS-14)

Katsman

Dickens

2020

Geo-Mar Lett

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Hydrocarbon gases in seafloor sediments of the TATAR strait, the northern sea of Japan

Cited by 15 publications

References 28 publications

Enrichment of gas storage in clathrate hydrates by optimizing the molar liquid water–gas ratio

Enrichment of gas storage in clathrate hydrates by optimizing the molar liquid water–gas ratio

Ocean Dynamics and Methane Plume Activity in Tatar Strait, Far Eastern Federal District, Russia as Revealed by Seawater Chemistry, Hydroacoustics, and Noble Gas Isotopes

Gas in Marine Sediments (GIMS): past, current, and future (contributions from GIMS-14)

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