Results 131 to 140 of about 5,770 (176)

Technical requirements for exploration and mining of seafloor massive sulphide deposits and Cobalt-rich ferromanganese crusts [PDF]

, 2002
Hannington, Mark D., Herzig, Peter, Petersen, Sven   +2 more
core  

Some of the next articles are maybe not open access.

Related searches:

Intermediate and deep water formation in the Okinawa Trough

Journal of Geophysical Research: Oceans, 2013
Water 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
Hirohiko Nakamura, Ayako Nishina, Mark Wimbush   +2 more
exaly   +3 more sources

Back-arc rifting in the Okinawa Trough

Marine and Petroleum Geology, 1985
Abstract 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 ...
exaly   +2 more sources

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

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

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

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

Crustal nature and lithospheric structure of the Okinawa Trough

Geological Journal, 2020
The Okinawa Trough (OT) is a back‐arc basin located in the eastern edge of the Eurasian Plate. The stage of back‐arc spreading and the exact crustal thickness of the OT are still controversial. To determine the crustal nature and lithospheric structure of the OT, the Moho discontinuity depth of the OT is calculated through the Parker–Oldenburg ...
Gang Wang, Suhua Jiang, Sanzhong Li, Huixuan Zhang, Wei Cao, Feiyu Zhao, Jianping Lei, Song Gao   +7 more
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