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Browsing ELibrary by Title
Now showing items 13520-13539 of 26297
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(2006)The Chi-Chi, Taiwan, earthquake of 20 September 1999 was preceded by a notable decrease of the regional seismicity rate. The anomalous period started in January 1999 and lasted about 9 months, up to the occurrence of the ...
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(2000)Variations in seismicity are considered in the area of two large Kamchatka earthquakes of June 21 (Mw = 7.0) and July 16, 1996 (Mw = 6.6). Both events were found to have been preceded by seismic quiescences terminating a ...
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(2006)Under the Incorporated Research Institutions for Seismology (IRIS) Program for Array Seismic Studies of the Continental Lithosphere (PASSCAL) project SOUTHBERG, we have operated for the past three years a number of seismic ...
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(1991)Two calderas have been located in Lake Kurilskoe by seismic reflection profiling. One of them, Kurilskaya, is about 7 km across and occupies the central and southern parts of the lake. The other caldera, Il'inskaya,is ...
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(2006)A detailed seismic reflection survey has been performed, utilizing a 24-channel spread with a 10 m geophone spacing, giving a maximum fold coverage of six, with the aim of revealing a detailed view of the subsurface structure ...
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(1996)In many areas of the world, the continental lithospheric upper mantle contains bright, continuous, regionally extensive, seismic reflectors. Despite the increasingly common observation of such mantle reflectors on deep ...
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(2003)We document strong seismic scattering from around the top of the mantle Transition Zone in all available high resolution explosion seismic profiles from Siberia and North America. This seismic reflectivity from around the ...
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(2004)Mineralogical phase transitions are usually invoked to account for the sharpness of globally observed upper-mantle seismic discontinuities. We propose a percolation-based model for the elastic properties of the phase mixture ...
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(2006)The Kurile Basin in the Okhotsk Sea, northwestern Pacific, is a back-arc basin located west of the Kurile Island Arc. Cenozoic sedimentation on the Kurile Basin northern slope and on the Academy of Science Rise was studied ...
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(2002)Detailed interpretation of single channel seismic reflection and Huntec deep-tow boomer and sparker profiles demonstrates that the southwestern Black Sea shelf formed by a protracted shelf-edge progradation since the ...
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(2006)The Adare Trough, located 100 km NE of Cape Adare, Antarctica, is the extinct third arm of a Tertiary spreading ridge that separated East from West Antarctica. We use seismic reflection data, tied to DSDP Site 274, to link ...
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(2006)Multi-channel seismic reflection data and borehole information were used to study the structure and stratigraphy of the Levantine basin, offshore Israel. A new, 2D seismic survey that covers the southeastern Mediterranean ...
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(2006)Modeling of receiver functions computed using data from the IRIS broadband station PALK in Sri Lanka reveals a simple crust with a thickness of 34 km. The crust appears to be more felsic with dominance of quartzite, as ...
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(2003)On a large scale, seismic waves travel faster through old continental shields than through Paleozoic platforms. On a smaller scale, the continental lithosphere appears to be composed of blocks with different velocities. ...
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(2002)Tomographic images for four major continental rift zones, namely the southern Rhine Graben (SRG, Germany/France), the Gregory rift (Kenya) which is the central part of the East African rift system, the Rio Grande rift (RGR) ...
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(2006)Reflection seismic imaging of the uppermost kilometer of crystalline bedrock is an important component in site surveys for locating potential storage sites for nuclear waste in Sweden. To obtain high-quality images, ...
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(1999)Regional seismic tomography of the northwest Pacific island arcs using P- and S-wave arrival time data with similar path coverage reveals an oceanic lithospheric slab deflected in the mantle transition zone beneath the Izu ...
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(2004)The geological profile of many submerged slopes on the continental shelf consists of normally to lightly overconsolidated clays with depths ranging from a few meters to hundreds of meters. For these soils, earthquake loading ...
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(2006)We study seismic velocity and attenuation structures in the top 400 km of the Earth's inner core based on modeling of differential traveltimes, amplitude ratios, and waveforms of the PKiKP-PKlKP phases observed at the ...
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(2001)We calculated seismic wave velocity anisotropy caused by the preferred orientation of mica minerals by using the differential effective medium method (DEM). Spheroidal biotite crystals with their c-axes coinciding with the ...
Now showing items 13520-13539 of 26297