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Browsing ELibrary by Title
Now showing items 5005-5024 of 21879
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(2001)Some specific features of the geological structure and ore mineralogy of the Khakandzha silver and gold deposit are discussed. The main ore masses are accumulated in complex, gently inclined, veined metasomatic zones. The ...
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(2002)The deep structure of three gold districts (Yuzhno-Omolon, Gonzhin, and Tsentral'no-Kamchatsk) was reviewed on the basis of regional gravity data and seismic profiling. The formation of these ore districts was attributed ...
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(2001)The Zhelannoe vein quartz and rock crystal deposit are unique in their geological structure, scale and high quality of ore mineralization and mineral product. The economic ores of the deposit are enclosed in monomineralic ...
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(2004)Submarine mud volcanoes are point sources of fluid expulsion and oases of active geological, geochemical, and microbial processes in the deep ocean. The results of multidisciplinary investigations at the Håkon Mosby mud ...
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(2002)An integrated deep geodynamic model of the Pechenga ore district was previously developed on the basis of correlation of the Kola superdeep borehole section and surface geology (Kazansky et at., 1994). The model describes ...
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(2004)The presented analytical data specify the geological-stratigraphic position of interglacial sequences that serve as important geological and paleogeographic markers. Solution of this problem is of theoretical and paleogeographic ...
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(1988)In studying, and especially in interpreting, modern movements of the Earth's crust, one should take into account its tectonic variability, its layering and the deformations exposed at the Earth's surface, which reflect the ...
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(1998)The Salmagorskii igneous complex represents a rare example of peralkaline rocks containing significant copper sulphide mineralization presented by chalcopyrite, djerfisherite and cubanite. Data on the geological structure ...
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(2001)The Pliocene and Pleistocene sediments exposed in eight sections of Transbaikalia have been correlated using geological and palynological data, together with information on fossil mammals and some paleomagnetic characteristics. ...
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(1999)The high-pressure/low-temperature Maksyutov Complex is situated in the southern Urals between the Silurian/Devonian Magnitogorsk island arc and the East European Platform. The elongated N-S-trending complex is made up of ...
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(1996)The Muruntau gold deposit in the Kyzylkum desert of Uzbekistan is the largest single deposit (> 1100 tonnes of gold) of the class of low-sulfide syndeformation/synigenous gold deposits formed in the brittle/ductile transition ...
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(2003)Ophiolites are rock assemblages recognized as relict fragments of oceanic crust and upper mantle. They provide insights into petrologic and seismic layering of in situ oceanic lithosphere at mid-ocean ridges and into deep ...
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(2004)The kinematics and history of the opening of the Amerasia Basin are closely linked to the geology of the wide shelves surrounding the Arctic Ocean. In this context, multichannel seismic reflection data from the virtually ...
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(2001)The Antaramut–Kurtan–Dzoragukh (AKD) coal deposit is a previously unrecognized coal field in north-central Armenia. Coal has been known to exist in the general vicinity since the turn of the century, but coal was thought ...
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(2004)With resources estimated at 1100 t Au at an average grade of 2.45 g/t, the black shale-hosted Sukhoi Log noble metals deposit is the largest concentration of gold in Russia. The Au mineralization and associated platinum ...
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(2003)The paper analyzes the geological structure, mineral parageneses, and composition of minerals of mantle rocks and the kimberlite groundmass, as well as the conditions of formation and the technique, of development of the ...
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(2004)The Kärdla crater is a 4 km-wide impact structure of Late Ordovician age located on Hiiumaa Island, Estonia. The 455 Ma‐old buried crater was formed in shallow seawater in Precambrian crystalline target rocks that were ...
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(2002)Since the opening of the Space Age, images from spacecraft have enabled us to map the surfaces of all the rocky planets and satellites in the Solar System, thus transforming them from astronomical to geological objects. ...
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(2004)Production of cosmogenic nuclides (CNs) in geologic material is a function of the cosmic-ray flux at the Earth's surface, which in turn is a function of the intensity and orientation of the Earth's geomagnetic field. ...
Now showing items 5005-5024 of 21879