2019
DOI: 10.1016/j.marpetgeo.2019.03.023
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Complex gas hydrate system in a gas chimney, South China Sea

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Cited by 131 publications
(90 citation statements)
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“…The dating of bivalve shells and seep carbonates revealed episodic changes in seepage activity [25]. Other features of methane seeps, such as acoustic plume, acoustic void, chimney structures, and pockmarks, were also reported at the Haima cold seeps and its surrounding area [27][28][29][30][31]42]. The sampling sites are ca.…”
Section: Geological Backgroundmentioning
confidence: 99%
See 1 more Smart Citation
“…The dating of bivalve shells and seep carbonates revealed episodic changes in seepage activity [25]. Other features of methane seeps, such as acoustic plume, acoustic void, chimney structures, and pockmarks, were also reported at the Haima cold seeps and its surrounding area [27][28][29][30][31]42]. The sampling sites are ca.…”
Section: Geological Backgroundmentioning
confidence: 99%
“…The Haima cold seeps were recently discovered on the northwestern slope of SCS [25]. Several sites with gas bubbling identified by hydroacoustic anomalies, and shallow gas hydrates were found around this area [27][28][29][30][31]. Recent studies have shown a pronounced temporal change in methane seepages and a potential lateral migration of methane-bearing fluid along more permeable sand-bearing layer at Haima cold seeps [25,32,33].…”
Section: Introductionmentioning
confidence: 99%
“…Seismic profiles show that a large number of gas chimneys and bottom simulating reflectors, indicators of gas migration and gas hydrate, were developed in the QDNB (Fang et al, ; Liang et al, ; Zhang et al, ). The fifth gas hydrate drilling expedition conducted in 2018 recovered natural gas hydrates within a gas chimney system (Wei, Liang, Lu, Zhang, & He, ; Ye et al, ).…”
Section: Geological Settingmentioning
confidence: 99%
“…In terms of total carbon release, describing methane flow in mole values may lead to an underestimation since higher hydrocarbons are not considered, e.g., Mega Plumes 1 and 2 in [24]. However, because it was assumed that pure methane was released from the Site F and Haima cold seeps [57][58][59], the volume and gas amount (moles) were calculated separately for each bubble size measurement and then averaged for more accurate results. The estimated methane bubble flow rates for seeps 1-3 at Site F were 0.4, 4.4, and 0.1 L h -1 , respectively, and seep 1 of the Haima cold seeps yielded a rate of 12.6 L h -1 .…”
Section: Methane Bubble Fluxmentioning
confidence: 99%