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Ana María Osorio-Granada, Bismarck Jigena-Antelo, Juan Vidal-Perez, Enrico Zambianchi, Edward G. Osorio-Granada, Cristina Torrecillas, Jeanette Romero-Cozar, Hermann Leon-Rincón, Karem Oviedo-Prada and Juan J. Muñoz-Perez
High-resolution seismic analysis and bathymetry data, used in the Offshore Sinú Fold Belt (OSFB), have revealed seabed and sub-surface anomalies, which were probably caused by the presence of shallow gas within the sedimentary records. Shallow gas is wid...
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Alexander A. Komissarov, Denis V. Makarov, Andrey O. Kholmogorov and Renat B. Shakirov
Bottom formations known as pockmarks basically arise due to extensive gas emission. Active pockmarks are characterized by exceptionally high gas saturation and substantially reduced sound speed. The latter circumstance leads to strong attenuation of soun...
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Zhenqiang Xu, Yang Li, Wei Yan, Yaoyao Lv, Guoqing Zhang, Dongyu Lu and Zuofei Zhu
The southern continental margin-slope area of the South China Sea is a complex passive continental margin with diverse tectonic structures and movements. This area is rich in gas hydrate resources and is also an area with a high incidence of potential ge...
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Gongzheng Ma, Linsen Zhan, Hailong Lu and Guiting Hou
Geological structure changes, including deformations and ruptures, developed in shallow marine sediments are well recognized but were not systematically reviewed in previous studies. These structures, generally developed at a depth less than 1000 m below...
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Mark Zimmermann, Megan M. Prescott and Peter J. Haeussler
We defined the bathymetry of Shelikof Strait and the western Gulf of Alaska (WGOA) from the edges of the land masses down to about 7000 m deep in the Aleutian Trench. This map was produced by combining soundings from historical National Ocean Service (NO...
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Vladimir S. Yakushev
Experimental studies on clay sample saturation by methane hydrates proved that clay particles play an important role in the hydrate accumulation and decomposition processes in sediments. Depending on water content, the same clay mineral can serve as inhi...
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Marcelo Ketzer, Daniel Praeg, Maria A.G. Pivel, Adolpho H. Augustin, Luiz F. Rodrigues, Adriano R. Viana and José A. Cupertino
Gas hydrate provinces occur in two sedimentary basins along Brazil?s continental margin: (1) The Rio Grande Cone in the southeast, and (2) the Amazon deep-sea fan in the equatorial region. The occurrence of gas hydrates in these depocenters was first det...
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Ilya Ostanin, Zahie Anka and Rolando Di Primio
Hydrocarbon prospectivity in the Greater Barents Sea remains enigmatic as gas discoveries have dominated over oil in the past three decades. Numerous hydrocarbon-related fluid flow anomalies in the area indicate leakage and redistribution of petroleum in...
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