Geochemical Analysis as a Complementary Tool to Estimate the Uplift of Sediments Caused by Shallow Gas Hydrates in Mounds at the Seafloor of Joetsu Basin, Eastern Margin of the Japan Sea
Figure 5
Detailed maps of seep sites. (a) Joetsu Knoll center, (b) Umitaka Spur north, and (c) Umitaka Spur center. See Figures 1 and 4 for map locations. Yellow circles indicate giant plumes observed by echosounder during the last few years [12]. Red ellipses indicate mound seep site regions with giant plumes. Red stars indicate gas hydrate outcrops.
(a)
(b)
(c)
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