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Геология России: Recent submissions
Now showing items 1561-1580 of 43490
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(2006)Three new sediment cores from the Chukchi Sea preserve a record of local paleoenvironment, sedimentation, and flooding of the Chukchi Shelf (~-50 m) by glacial-eustatic sea-level rise. Radiocarbon dates on foraminifera ...
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(2006)The Burren region in western Ireland contains an almost continuous record of Viséan (Middle Mississippian) carbonate deposition extending from Chadian to Brigantian times, represented by three formations: the Chadian to ...
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(2006)Sensitive high-resolution ion microprobe (SHRIMP) U-Pb ages for detrital zircons from the Caspian region reveal the age ranges of basement terrains that supplied the sediment. One sample from the modern Volga river has ...
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(2006)The channel flow model aims to explain features common to metamorphic hinterlands of some collisional orogens, notably along the Himalaya-Tibet system. Channel flow describes a protracted flow of a weak, viscous crustal ...
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(2006)The uplift of the Tibetan Plateau plays a critical role in controlling global climate, yet the history of the Tibetan uplift is still a contentious issue. In particular, the elevation of the plateau during the Neogene - a ...
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(2006)The Tertiary continental strata of the Himalayan foreland basin are subdivided into two groups, but the meaning of this subdivision was previously unclear. From the analysis of drill holes, seismic lines, dated sections, ...
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(2006)Metamorphic dome complexes occur within the internal structures of the northern Himalaya and southern Tibet. Their origin, deformation, and fault displacement patterns are poorly constrained. We report new field mapping, ...
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(2006)Calcareous tube-worms generally identified as Spirorbis range from Ordovician to Recent, often profusely encrusting shells and other substrates. Whereas Recent Spirorbis is a polychaete annelid, details of tube structure ...
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(2006)Intersections of remanence small circles are increasingly used in palaeomagnetism to determine the palaeofield direction from synfolding remanences. The approach ['small circle intersection (SCI) method'] presupposes that ...
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(2006)We perform analytical and numerical studies of aftershock sequences following abrupt steps of strain in a rheologically layered model of the lithosphere. The model consists of a weak sedimentary layer, over a seismogenic ...
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(2006)The three major geochemical methods for impactor identification are evaluated with respect to their potential and limitations with regards to the precise detection and identification of meteoritic material in impactites. ...
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(2006)Since 1997, two quartz tube strainmeters at the Geodynamic Observatory Moxa, located 30 km south of Jena, are used to observe long-period horizontal deformation signals. Both strainmeters are 26 m long with orientations ...
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(2006)Statistical distributions of annual extreme and long dry spells, using daily rain amount thresholds of 0.1, 1.0 and 5.0 mm/day, are analysed from a database of 39 rain gauges in Catalonia (NE Spain), with a daily recording ...
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(2006)Dissolution of natural mafic magmatic enclaves in a hydrous leucogranitic synthetic melt has been tested experimentally. Results suggest that the mechanism of enclave dissolution is a potential hybridization process in ...
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(2006)Ultrahigh-pressure (UHP) rocks in the Cuaba Gneiss include Grt ultramafic rocks, mafic eclogite, and partially retrograded equivalents. The Grt ultramafic rocks (Spl-bearing Grt peridotite, Spl-bearing Grt clinopyroxenite, ...
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(2006)The Chesapeake Bay impact structure, which is about 35 Ma old, has previously been proposed as the possible source crater of the North American tektites (NAT). Here we report major and trace element data as well as the ...
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(2006)Here we report on the stratigraphic distribution and chemical composition of Ni-rich spine, a specific mineral tracer of meteorite impacts, in the Fuente Caldera section in Spain. A major peak in spinel abundance is observed ...
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(2006)The Yaogangxian deposit in the central Nanling region, South China consists of vein-type ore bodies hosted in Cambrian to Jurassic strata and Mesozoic granitic intrusions. Wolframite and molybdenite are the dominant ore ...
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(2006)Upper Eocene impact ejecta has been discovered all over the world. The number of upper Eocene impact layers and the geographic distribution of each layer, based on major chemical composition and biostratigraphic data, are ...
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(2006)It has been almost 25 years since the widespread acceptance of the presence of meteorite from Mars in the world's collections. The martian meteorites differ from meteorites from the asteroid belt in that they have ...
Now showing items 1561-1580 of 43490