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Browsing by Title
Now showing items 12777-12796 of 39126
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(IOP Publishing, 2016)The paper describes the results in identifying the prevalent directions of elongated quartz grains being the major oil-producing layer component in sand reservoirs. Studying the orientation of quartz to its grain shapes ...
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(PANGAEA, 1994-10-19)Despite the Arctic sea ice cover's recognized sensitivity to environmental change, the role of sediment inclusions in lowering ice albedo and affecting ice ablation is poorly understood. Sea ice sediment inclusions were ...
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(2002)The paper gives a comprehensive survey of the materials on sedimentation in the lakes of Leningrad region. On the strength of the new data on the structure of bottom sediments the authors conclude that sedimentation ...
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SEGMENT LINKAGE DURING EVOLUTION OF INTRACONTINENTAL RIFT SYSTEMS: INSIGHTS FROM ANALOGUE MODELLING (2003)On the basis of the effective scale-independence of brittle structures, from microcracks to regional fault systems, we have used analogue centrifuge models to provide insights into the initiation and evolution of continental ...
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(1998)Low ionic strength waters containing significant calcium and bicarbonate are common in nature, but little literature exists on their behaviour during freezing. Modelling indicates that freezing-induced concentration of ...
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(2000)Vesicle cylinders represent a spectacular kind of segregation structure involving residual liquids formed in situ during the cooling of lava flows. These vertical pipes, commonly found within basalt flows typically 2-10 m ...
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(Федеральное государственное бюджетное учреждение науки Геофизический центр Российской академии наук, 2015)In consequence of our investigations curried out during 2009—2015 we established the connection of maximal seismic activity in South Siberia, Russian Far East and adjacent countries of central and East Asia with zones ...
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(2003)A small swarm of 80 earthquakes was observed beneath Koryakski volcano between March 1 and May 31, 1994. These earthquakes ranged from 0 to 8 km in depth and from −2.0 to 1.5 in magnitude (ML). The swarm under Koryakski ...
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(2002)Paleoseismologic studies of recent years on the southern slope of the Northwest Caucasus show major earthquakes of up to M 7.0 to have occurred in the past in the number of geologically active fault zones. Recurrence ...
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(2002)Seismic anisotropy provides evidence for the physical state and tectonic evolution of the lithosphere. We discuss the origin of anisotropy at various depths, and relate it to tectonic stress, geotherms and theology. The ...
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(1996)Seismic anisotropy beneath continents is analyzed from shear-wave splitting recorded at more than 300 continental seismic stations. Anisotropy is found to be a ubiquitous property that is due to mantle deformation from ...
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(2004)Analytical expressions for three P-wave attenuation mechanisms in sedimentary rocks are given a unified theoretical framework. Two of the models concern wave-induced flow due to heterogeneity in the elastic moduli at ...
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(2001)The coherent-state transform (CST) is essentially a Gaussian-windowed Fourier transform and it yields a combined slowness-position (p, x) domain representation of seismic wavefields. Several forms of the inverse CST exist ...
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(1989)Traditional instrumental seismologic observations provide information on the accelerations, velocities and displacements of the ground at various distances from the centers of earthquakes and explosions. Seismic instruments ...
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(1989)The southern, deep-water part of the Aegean Sea includes the Cretan Trough, which is bounded in the north by the South Aegean volcanic belt (with the well known Santorin volcano) and in the south by the Hellenic Island Arc ...
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(1988)Seismic energy release during the precursory, eruptive and declining stages of volcanic activities provides various information about the mechanisms of volcanic eruptions and the temporary developments of their activities. ...
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(1998)A study of the seismicity that preceded and accompanied eruptions in the Karymsky volcanic center revealed a relationship between the seismic processes caused by local tectonic movements and volcanic eruptions at Karymsky ...
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(2001)A non-linear iterative P-wave traveltime tomography has revealed a mantle plume originating at a depth of nearly 1000km, rising across the 600 km discontinuity, and deflecting subhorizontally in the uppermost mantle ...
Now showing items 12777-12796 of 39126