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GeologyScience Repository: Recent submissions
Now showing items 661-680 of 43265
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(2006)Within the Betic-Rif orogenic system, the Flysch Trough units are formed mainly by siliciclastic rocks, upper Jurassic to lower Miocene in age. In the Gibraltar Arc area, they are presently deformed as an accretionary ...
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(2006)A possible role of boiling of the H2O-NaCl-CO2 (-H2S) fluid in ore deposition has been examined numerically by using the equations of state (EOS) of Duan et al. (1995, 1996), a modified EOS of Bowers and Helgeson (1983) ...
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(2006)During 1993-2002, a field experiment in the Miyun reservoir was carried out. A relation coefficient of -0.063 nT/m was obtained between geomagnetic changes and water depth variations in the reservoir, which agrees with ...
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(2006)When a continent breaks up into two plates, which then separate from each other about a rotation pole, it can be shown that if initial movement is taken up by lithospheric extension, asthenospheric breakthrough and oceanic ...
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(2006)The Pre-Messinian land mammal localities of Italy contribute substantial information for reconstructing the complex history of the land masses of the central Mediterranean. At the present state of knowledge the available ...
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(2006)Geochemical and Nd-Hf isotopic data are reported for dolerite samples from the Neoproterozoic (755 Ma) Mundine Well dyke swarm in northwestern Australia. These dolerites are tholeiitic in composition, crystallised from a ...
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(2006)A 9.14 m long sediment sequence was recovered from Lake Fryxell, Taylor Valley, southern Victoria Land, Antarctica, and investigated for its chronology and sedimentological, mineralogical, and biogeochemical changes. The ...
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(2006)The magnitude of the in situ stresses in the Cooper-Eromanga Basins have been determined using an extensive petroleum exploration database from over 40 years of drilling. The magnitude of the vertical stress (Sv) was ...
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(2006)The wide variety of metal sulfide structures and their accommodation of atomic substitution, non-stoichiometry and metal-metal (M-M) and ligand-ligand interactions allows for diverse physical, chemical and electronic ...
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(2006)In the sulfide mineral assemblages commonly found in terrestrial rocks, the major elements are S with the metals Fe, Zn, Cu, Pb, and Ag and semimetals As and Sb. Minor elements include Te, Se; the metals Ni, Cd, Co, Mn and ...
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(2006)The Tyrrhenian margin of central Italy has undergone Plio-Quaternary extension, developing NW-SE normal faults and NE-SW faults. The NE-SW faults decrease in frequency toward NE with the stretching factor β, becoming ...
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(2006)The earthquake cycles that characterize continental-interior areas that are far from active plate boundaries have proven highly cryptic and difficult to resolve. We used a novel paleoseismic proxy to address this issue. ...
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(2006)The pressure stimulated current (PSC) technique was used in two variations, LSRT and SST for the investigation of the relations governing stress rate dS/dt, electric charge release and the behaviour of the damage parameter ...
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(2006)Paleomagnetic results from fine-grained samples of Sudbury breccia, collected from 28 sites around the northern half of the 1.85 Ga Sudbury Igneous Complex (SIC), reveal the existence of two major components of magnetization, ...
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(2006)Dikes of pegmatitic albitite intrude serpentinized lherzolite at Urdacb and Espéchère, two ultramatic Alpine-type bodies from the western Pyrénées, France. The rocks exhibit mineralogical features matching those of xenoliths ...
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(2006)Bulk and slab geometry optimizations and calculations of the electrostatic potential at the surface of both pyrophyllite [Al2Si4O10(OH)2] and talc [Mg3Si4O10(OH)2] were performed at Hartree-Fock and DFT level. In both ...
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(2006)Structural and thermochronological studies of the Kampa Dome provide constraints on timing and mechanisms of gneiss dome formation in southern Tibet. The core of Kampa Dome contains the Kampa Granite, a Cambrian orthogneiss ...
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(2006)A new molluscan fossil record from the late Miocene-Pliocene Xifeng Red Clay sequence in the central Loess Plateau, northern China, reveals the process of ecological environmental changes during ~ 6.2-2.4 Ma. Three marked ...
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(2006)Arc volcanoes are typically located 90-180 km above the surface of downgoing slabs, as shown by Wadati-Benioff deep seismic foci. The intimate relationship between the dip angles of the subducting slab and the locations ...
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(2006)The palynological sequence from core ND-1 on the Song Hong delta in the northern Vietnam reveals the climate change during the last deglaciation. The identified pollen in the core is dominated by Castanopsis (Lithocarpus), ...
Now showing items 661-680 of 43265