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Methylomarinovum tepidoasis sp. nov., a moderately thermophilic methanotroph of the family Methylothermaceae isolated from a deep-sea hydrothermal field. [PDF]
Hirayama H +6 more
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Microseismicity in the middle Okinawa trough
Journal of Geophysical Research: Solid Earth, 1989We conducted a microearthquake survey with ocean bottom seismometers (OBS) in the middle Okinawa trough in 1984. During about one month of operation, very active microseismicity was observed. The microearthquake activity was characterized by the ceaseless occurrence of numerous small earthquakes in the vicinity of OBS stations.
Toru Ouchi +4 more
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Back-arc rifting in the Okinawa Trough
Marine and Petroleum Geology, 1985Abstract Geological and geophysical data reveal that the Okinawa Trough shows incipient continental rifting, and crustal separation started from about 2 Ma. The early extensional movements in the trough are probably of Miocene age. In addition to the Miocene phase, two main periods of extension are recognized: a Pleistocene phase between 1.9 and 0.5 ...
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Intermediate and deep water formation in the Okinawa Trough
Journal of Geophysical Research: Oceans, 2013Water mass formation in the intermediate and deep layers of the Okinawa Trough is investigated using two distinct data sets: a quasi‐climatological data set of the water properties of the minimum salinity surface produced from Argo float profiles and historical CTD data, and a velocity data set in the Kerama Gap measured by moored current meters during
Nishina Ayako +2 more
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A study on element-stratigraphy of Okinawa Trough
Chinese Journal of Oceanology and Limnology, 1988Regular distribution patterns of elements Ca, Sr, K, Na, Mg, Fe, Mn, Ti, Cu, Co, Ni, Zn, Pb, Cr, Rb, Ba, Cd, and U in Late Quaternary strata have been studied in detail. The regional variation patterns of elements in these strata are similar to those in recent surface sediments, showing that the sedimentary environment has been relatively stable since ...
Zhao Yiyang +4 more
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Microseismicity and faulting in the southwestern Okinawa Trough
Tectonophysics, 2009Abstract In November 2003, 15 ocean bottom seismometers were deployed in the southwestern Okinawa Trough. More than 3300 microearthquakes were located during the 10-days passive seismic experiment. The earthquake activity is characterized by the ceaseless occurrence of small earthquakes in the vicinity of all the instruments.
Jing-Yi Lin +8 more
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Microearthquakes and faulting in the southern Okinawa Trough
Tectonophysics, 2003Abstract Southern Okinawa Trough represents an early stage of back-arc rifting and is characterized by normal faulting and microearthquakes. Earthquake distribution and deep structure of fault was investigated to clarify active rifting in the southern Okinawa Trough, where two parallel grabens are located. A network of ocean bottom seismometers (OBSs)
Mamoru Nakamura, Hiroshi Katao
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The tectonics beneath the Okinawa Trough
Chinese Journal of Oceanology and Limnology, 1984The nature of the crust of the Okinawa Trough is different from that of the continental shelf in the East China Sea. The crust beneath the Trough is in transformation from continental to oceanic and the depth of MOHO in the northern section of the Trough is deeper than in the southern section.
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Methane in Izena Cauldron, Okinawa Trough
Journal of Oceanography, 1995Methane in the deep water of Izena Cauldron (maximum depth: ca. 1650 m) at the east side of mid-Okinawa Trough was studied by casting a CTD system with 12 Niskin bottles for water sampling at 11 stations inside and outside the cauldron. The water contained much methane up to 706 nmoles/l.
Shuichi Watanabe +3 more
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Heat flow in the southwestern Okinawa Trough
Earth and Planetary Science Letters, 1981Abstract Lying to the southeast of the East China Sea continental shelf, the Okinawa Trough is believed to have been formed by crustal spreading behind the Ryukyu island arc. It has the highest mean heat flow among the Pacific marginal basins. The mean of 18 reliable measurements is3.34±2.75HFU.
R.S. Lu, J.J. Pan, T.C. Lee
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