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Геология России: Recent submissions
Now showing items 681-700 of 41109
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(2006)The metal-rich portion of the Co-Ni-P system was studied experimentally at 800 °C by means of evacuated silica glass tube technique. Five binary phases: Co2P, Ni2P, Ni12P2 Ni 5 Ni3P and ive ternary phosphides solid solutions: ...
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(2006)A recently discovered Late Triassic (Lower Camian) coleoid (Doguzhaeva & al., 2005a) from the Austrian Alps (locality Schindelberg, Lunz, Niederösterreich) is described as Lunzoteuthis schindelbergensis n. gen. et sp. The ...
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(2006)The paper reports ultrastructural and chemical studies on gladii of living and fossil coleoids in order to elucidate the original composition of the fossil gladii. Gladii of the Aptian Nesisoteuthis simbirskensis Doguzhaeva ...
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(2006)In order to determine the timing of growth of belemnite rostra, we analyzed microgrowth patterns of seven, excellently preserved specimens of Megateuthis giganteus (v. Schloth.) from the Middle Jurassic of the Hannover ...
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(2006)We present a new data on middle Jurassic - early Cretaceous coleoids family Belemnotheutidae form Russia. The palaeobiogeographic distribution of the family is summarized herein and new palaeobiogeographic data are connected ...
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(2006)Three longicones (Virgilian, Upper Pennsylvanian, Texas, USA) with a ventral marginal siphuncle, a shell wall with a nacreous layer, and a long body chamber were examined. The smallest is a 25 mm long adolescent, ...
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(2006)The postulate that the pro-ostracum of extinct coleoids is a dorsal extension of the phragmocone wall (conotheca), and is therefore a homologue of the shell wall of ectocochleate precursors (Naef, 1922; Jeletzky, 1966) is ...
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(2006)The most abundant silicates formed under the Earth's 'normal' surface conditions, i.e. clay minerals, are always of small grain size. Under the same conditions, other mineral species such as carbonates, sulphates and oxides ...
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(2006)The Gulf of Cadiz is a tectonically active area of the European continental margin and characterised by a high abundance of mud volcanoes, diapirs, pockmarks and carbonate chimneys. During the R/V SONNE expedition ...
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(2006)New measurements of 142Nd/144Nd in kimberlites, carbonatites, komatiites, ocean island basalts from Pitcairn, and mid-ocean ridge basalts from the Pacific and Indian Oceans show no deviation from the terrestrial Nd standard ...
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(2006)The large Dead Sea graben is located within the Dead Sea fault, a plate boundary of the transform type. The graben is composed of two basins. The northern one is occupied by a lake, about 300 m deep and has a sedimentary ...
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(2006)Spectroscopic studies of analog terrestrial mineral assemblages are necessary to develop criteria to identify similar environments on Mars. We use visible/near infrared (VNIR) laboratory, field, and remotely acquired ...
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(2006)Contrasted tectonic styles occur in northern Iran. West of Kopet Dagh, the south Caspian basin is an aseismic and possibly rigid block involved in the collision zone between Eurasia and Arabia. To the NW, large scale ...
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A SPECTROPHOTOMETRIC STUDY OF ERBIUM (III) SPECIATION IN CHLORIDE SOLUTIONS AT ELEVATED TEMPERATURES (2006)The speciation of erbium in chloride-bearing solutions was investigated spectrophotometrically at temperatures of 100 to 250 °C and a pressure of 100 bars. The hydrated ion, Er3+, is predominant at ambient temperature, but ...
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(2006)The ultrahigh-pressure (UHP) Maowu Ultramafic Complex (Dabie Shan, China) is hosted by coesite-bearing gneisses. Textural and geochemical data demonstrate that garnet-orthopyroxenites within the ultramafic complex derive ...
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(2006)Solubilities of corundum (Al2O3) and wollastonite (CaSiO3) were measured in H2O-NaCl solutions at 800 °C and 10 kbar and NaCl concentrations up to halite saturation by weight-loss methods. Additional data on quartz solubility ...
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(2006)Static lattice energy calculations (SLEC), based on empirical pair potentials have been performed for a set of 125 different structures with compositions between pyrope and grossular, and with different states of order of ...
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(2006)During the MARGASCH cruise M52/1 in 2001 with RV Meteor we sampled surface sediments from three stations in the crater of the Dvurechenskii mud volcano (DMV, located in the Sorokin Trough of the Black Sea) and one reference ...
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(2006)The volatization of Rhenium (Re) from melts of natural basalt, dacite and a synthetic composition in the CaO-MgO-Al2O3-SiO2 system has been investigated at 0.1 MPa and 1250-1350 °C over a range of fO2 conditions from log ...
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SULFATES ON MARS: A SYSTEMATIC RAMAN SPECTROSCOPIC STUDY OF HYDRATION STATES OF MAGNESIUM SULFATES (2006)The martian orbital and landed surface missions, OMEGA on Mar Express and the two Mars Explorations Rovers, respectively, have yielded evidence pointing to the presence of magnesium sulfates on the martian surface. In situ ...
Now showing items 681-700 of 41109