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Browsing ELibrary by Title
Now showing items 11134-11153 of 21768
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(1995)Ab initio, molecular orbital calculations of the structures, energetics, and vibrational spectra of six T2Obr-CO2 clusters and five T-[CO3]-T clusters (T = Al or Si, with and without Na+ present) have been completed using ...
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(2002)Trioctahedral ferromagnesium micas from the Archaean amphibolites of the Kola super-deep borehole (KSDB-3) complex have been compared with those from analogous Archaean surface rocks in an integrated study of their chemical ...
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STRUCTURAL STUDY OF MAGNESIOAXINITE AND ITS CRYSTAL-CHEMICAL RELATIONS WITH AXINITE-GROUP MINERALS (2000)The magnesium end-member of the axinite mineral group was studied by single-crystal X-ray diffraction and refined in the P1 space group (R = 2.2 %). Cell parameters are a = 7.1381(3) Å, b = 9.1626(4) Å, c = 8.9421(4) Å, α ...
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(2000)The structural transformation of dioctahedral 2:1 layer silicates (illite, montmorillonite, glauconite, and celadonite) during a dehydoxylation-rehydroxylation process has been studied by X-ray diffraction, thermal analysis, ...
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(1996)In following up a recent proof of a structural substitution of octahedral FeIII by VIII and CrIII in synthetic goethite, the same substitution was now recorded in goethites and hematites from lateritic crusts. Substitution ...
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(2000)
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(2004)Structural refinements of single crystal X-ray diffraction data for synthetic (Sb,Bi)2S3 solid solutions revealed structural variations in the stibnite (Sb2S3)-bismuthinite (Bi2S3) series. Coordination environments of the ...
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(1987)One of the forms in which the relationship between tectonic deformation and metamorphism is expressed is structural and metamorphic zoning, i.e., the regular variation of structural parageneses and deformation styles of ...
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(2003)We report the results of coordinated ion microprobe and transmission electron microscope (TEM) studies of presolar graphites from the KE3 separate (1.65-1.72 g/cm3) of the Murchison CM2 meteorite. Isotopic analysis of ...
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(2002)Among the Rugosa operculae were developed by only a few genera. One is the slipper-shaped Calceola and another is the pyramidal shaped Goniophyllum. On the basis of biological and morphological knowledge of recent corals, ...
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(2000)The Southern Yenisey Range of Eastern Siberia consists of the granulite facies Kanskiy Complex bordered in the west by the lower-grade Yeniseyskiy and Yukseevskiy Complexes. Three deformational events were recognized in ...
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(2001)Humic acids from highly decomposed peat were subjected to oxidation with alkaline cupric oxide (CuO) at 170°C (single oxidation). Oxidation products were isolated as three fractions, oxidized humic acids, fulvic acids and ...
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(2003)It is difficult to reconstruct the pre-Cenozoic history of western Kamchatka, because Mesozoic deposits are fragmentarily exposed here. The Palana section, the most complete one among Mesozoic sections of the region, is ...
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(2002)Olivine grain boundaries in deformed aggregates of olivine + basalt and partially molten lherzolite were analyzed with various electron microscopy techniques to test for the presence of thin (0.5-10 nm) intergranular melt ...
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(2004)This paper presents geological, isotopic-geochemical, and geochronologic data on bimodal trachybasalt-trachyte and trachybasalt-trachyrhyolite-comendite associations of the Tsagan-Khurtei graben of Western Transbaikalia. ...
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(2001)The structural behavior of synthetic gahnite (ZnAl2O4) has been investigated by X-ray powder diffraction at high pressure (0–43 GPa) and room temperature, on the ID9 beamline at ESRF. The equation of state of gahnite has ...
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(2003)The subdivision and correlation scheme of the Vendian Complex is revised based on new data from outcrops along the eastern margin of the Baltic Shield (the southeastern White Sea area) and recently drilled boreholes. ...
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(1997)The paper describes the results of the crustal and upper mantle studies in the region using the areal DSS technique. The territory covered is about 400 thousand sq. km. A number of contrasting anomalies have been discovered ...
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(2005)The salt tectonics of the Glueckstadt Graben has been investigated in relation to major tectonic events within the basin. The lithologic features of salt sections from Rotliegend, Zechstein and Keuper show that almost pure ...
Now showing items 11134-11153 of 21768