Results 171 to 180 of about 2,067 (212)

Last deglaciation in the Okinawa Trough: Subtropical northwest Pacific link to Northern Hemisphere and tropical climate [PDF]

Paleoceanography, 2005
Author Posting. © American Geophysical Union, 2005. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution.
Youbin Sun, Delia W Oppo, Rong Xiang
exaly   +2 more sources

Structural characteristics of the northern Okinawa Trough and adjacent areas from regional seismic reflection data: Geologic and tectonic implications

Tectonophysics, 2012
Analysis of regional multi-channel seismic data from the northern Okinawa Trough and adjacent shelf provides some important constraints on the structural development of the area.
Jinho Kim
exaly   +2 more sources

Clay mineral evolution in the central Okinawa Trough since 28ka: Implications for sediment provenance and paleoenvironmental change

Palaeogeography, Palaeoclimatology, Palaeoecology, 2010
The Okinawa Trough is a natural laboratory for the study of later Quaternary land-ocean interaction and paleoenvironmental changes. In this study we reconstruct the evolution of clay mineral assemblages in Core DGKS9604 retrieved from the central Okinawa
Shouye Yang, Zhenxia Liu, Peter D Clift   +2 more
exaly   +3 more sources

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Microseismicity in the middle Okinawa trough

Journal of Geophysical Research: Solid Earth, 1989
We 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, Hisatosi Kawakami, Shozaburo Nagumo, Junzo Kasahara, Sadayuki Koresawa   +4 more
openaire   +1 more source

A study on element-stratigraphy of Okinawa Trough

Chinese Journal of Oceanology and Limnology, 1988
Regular 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, Qin Zhaoyang, Li Fengye, He Lijuan, Wang Jintu   +4 more
openaire   +1 more source

Provenance discrimination of siliciclastic sediments in the middle Okinawa Trough since 30ka: Constraints from rare earth element compositions

Marine Geology, 2010
The late Quaternary paleoceanography and paleoenvironment in the Okinawa Trough, East China Sea, have been well reconstructed over the last decade, while in contrast the provenance of terrigenous sediments that have accumulated there remains enigmatic ...
Shouye Yang, Zhenxia Liu, Peter D Clift   +2 more
exaly   +3 more sources

Microseismicity and faulting in the southwestern Okinawa Trough

Tectonophysics, 2009
Abstract 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, Jean-Claude Sibuet, Chao-Shing Lee, Shu-Kun Hsu, Frauke Klingelhoefer, Yves Auffret, Pascal Pelleau, Jacques Crozon, Cheng-Horng Lin   +8 more
openaire   +1 more source

Microearthquakes and faulting in the southern Okinawa Trough

Tectonophysics, 2003
Abstract 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
openaire   +1 more source

The tectonics beneath the Okinawa Trough

Chinese Journal of Oceanology and Limnology, 1984
The 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.
openaire   +1 more source

Methane in Izena Cauldron, Okinawa Trough

Journal of Oceanography, 1995
Methane 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, Nobuo Tsurushima, Masashi Kusakabe, Shizuo Tsunogai   +3 more
openaire   +1 more source