Journal of Geological Research / 2012 / Article / Fig 7

Research Article

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 7

Piston-core correlation between background areas and mound-seep sites at both Umitaka Spur and Joetsu Knoll. Sedimentation rates for PC701 (Oki Trough) based on tephrostratigraphy and 14C of foraminifera are shown. In the bottom, a correlation is shown between the shallowest parts of piston cores and push cores collected over the mounds. This correlation was modified from Freire [13, 14].

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