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Геология России: Recent submissions
Now showing items 1161-1180 of 40749
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(2006)It is very important to discovery the northern boundary of eastern Tethyan tectonic domain not only for constraining its range and evolution, but also for establishing the tectonic affinity of microcontinents or terranes ...
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(2006)The major element, trace element and isotopic data of the latest-Paleozoic volcanic rocks which include early-Carboniferous andesites (ECA), early-Permian trachytoids (EPT) and middle-Permian basalts(MPB), from Santanghu ...
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(2006)The characteristics of magnetic susceptibility of core samples and logging susceptibility from the depth of 100 ~ 2000m mainhole of Chinese Continental Scientific Drilling (CCSD) are systematically compared. The results ...
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(2006)The western Tianshan high-pressure (HP) metamorphic belt, which is probably to represent paleosubduction mélange of Paleozoic south Tianshan ocean between the Yili-central Tianshan and Tarim plates, is situated in the south ...
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(2006)Dehydration of subducted ocean crust plays a significant role in the generation of island arc volcanics. Hydrous eclogite-facies veins cutting through the host blueschists/eclogites in the western Tianshan high-pressure- ...
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(2006)The region includes southeastern Yunnan and North Vietnam, which locates among the Nanhua, Yangtze and Indio-China Blocks, is a key target to study the tectonic evolution of South China and Southeastern Asian. There is a ...
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(2006)Significant crust uplift and erosion are common processes in response to geological crises. Our study on emplacement depth of Mesozoic granites and gold deposition in the Jiaodong Peninsula of eastern China, respectively, ...
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(2006)Mesozoic volcanic rocks section in Manzhouli Xinyouqi, Inner-Mongolia is mainly composed of trachy-andesite, trachyte and rhyolite 40Ar-39Ar dating of lower section trachy-andesites and middle section rhyolites give a ...
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(2006)Jinvozi Gold Deposit lies in the mid ore-forming band of Beishan Belt, Gansu Province. The analytical result of Raman spectrometric measurement for fluid inclusions in quartz shows that HO2-NaCl, H2O-CO2-CH4, -NaCl, or H2 ...
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(2006)A new-found Permian-Triassic boundary section in Xiushui, Jiangxi Province, China shows evidence for sea-level drop during the latest Permian. Evidence for sea-level drop was preserved in a 2.1 m thick interval of limestone, ...
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(2006)Re-Os isotopic systematics is the best tracer on studying the ophiolitic peridotite because, in contrast with the geochemical properties of Sm-Nd, Rb-Sr, U-Th-Pb and Lu-Hf, all of which are incompatible elements, Os is a ...
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(2006)Raohe Complex, located in the eastern Heilongjiang Province and composed of deep oceanic sediments and mafic igneous rocks,was considered as slice of oceanic crust and intruded by Hamahe and Taipingeun granites. Zircon ...
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(2006)Changbaishan Tianchi volcano once occurred a great eruption around 1000AD, the eruption materials of which were widely distributed gray comenditic pumice and pyroclastic flow. Melt inclusions were found in phenocrysts of ...
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(2006)The western end of the Proterozoic Jiangnan orogen is located at Northern Guangxi, South China. Neoproterozoic strongly peraluminous granitoids are dominant (>90%) in the area, with ca. 8% being the mafic-ultramafic rocks. ...
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(2006)The early Jurassic dacites of the Xinglonggou Formation in Beipiao area of West Liaoning Province have similar geochemical characteristics of adakite, which is generated from partial melting of young oceanic crust. Dacites ...
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(2006)The Lhasa block of Tibetan Plateau is one of the most important regions in revealing the collision between India and Asia. The entire processes of collision, from the Tethyan oceanic plate subduction to the subduction of ...
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(2006)There are three ophiolites sited in central Inner Mongolia, representing the sutures between North China craton and Siberia plate. Elemental and Sr-Nd-Pb isotopic geochemistry of the meta-basaltic rocks in Wenduermiao and ...
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(2006)Cenozoic high-Mg and K-rich lavas from Wozhong, western Yunnan province contain abundant olivine phenocrysts with Fo in mineral cores varying between 94 ~ 75%. As a whole, Fo contents decrease from macrophyric olivines ...
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(2006)Volcanic rocks of the Lower Devonian Kalatag formation in the Kalatag region, eastern Tianshan are dominated by Na-rich andesite, rhyolite and dacite rocks with less Na-rich basaltic andesite and basalt and minor basaltic ...
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(2006)The petrology, mineral paragenese and microstructure suggest that the protoliths for the Chenxing metabasite massif in Tunchang area, Hainan Island probably are composed of gabbroic rocks (coarse-grained amphibolites), ...
Now showing items 1161-1180 of 40749