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Browsing ELibrary by Title
Now showing items 7277-7296 of 21934
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(2001)We model three cases of coupling between mineral growth kinetics and mechanical response of the rock: (i) dispersed spherical crystals growing by replacement in a hydrostatically stressed elastic rock; (ii) growth of veins ...
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(2004)Chemical compositions were determined onmineral inclusions recovered from 290microdiamonds ( < 1mm) from 8 operating diamond mines in Yakutia. The sampled diamond mines include Mir, Udachnaya, Internatsionalnaya, Aykhal, ...
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(2002)In order to constrain the metamorphic evolution of deeply subducted impure marble from the Kokchetav massif, we investigated mineral inclusions in zircon, which is known to protect ultrahigh-pressure (UHP) phases from ...
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(1996)A study was made of Carboniferous deltaic deposits from Verkhoyan. The study was based on an analysis of the composition and typomorphic characteristics of the mineral parageneses in the deposits. This was accompanied by ...
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(2004)Mineral-magnetic measurements and analysis of total organic carbon (TOC) and carbon/nitrogen (C/N) were performed on two AMS 14C-dated lacustrine sequences recovered from Xiaoniuchang and Jiangjunpaozi (∼42°N, 117°E). The ...
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(2001)Pitfalls encountered when dealing the mica crystal chemistry on the basis of routine chemical analyses are reviewed.
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(2001)Results of a study of platinum group minerals (PGM) and associated mineral paragenesis from the Inagli placer deposit (the Aldan Shield, Siberian Platform) are given. The Ir trend is typical for isoferroplatinum, which is ...
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(2002)The macroscopic behaviour of minerals is not always directly related to their crystalline structure at the atomic scale but often depends explicitly on mesoscopic (nanometer–micrometer) features. This paper reviews various ...
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(1998)Crystal growth and dissolution mechanisms on the barite (001) surface have been observed in-situ in aqueous solution as a function of the saturation state at molecular scales using Atomic Force Microscopy (AFM). On freshly ...
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(2003)A detailed petrological study has been given to high-alumina ferriferous hornfelses characterized by the development of mineral associations (Cld + Bt, Cld + Bt + And, and Crd + Grt + Ms), quite rare for contact metamorphism. ...
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(2005)A conceptual model of CO2 injection in bedded sandstone-shale sequences has been developed using hydrogeologic properties and mineral compositions commonly encountered in Gulf Coast sediments. Numerical simulations were ...
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(1999)The Spencer-Moller-Weare (SMW) (1990) model is parameterized for the Na-K-Mg-Ca-Cl-SO4-H2O system over the temperature range from -60° to 25°C. This model is one of the few complex chemical equilibrium models for aqueous ...
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(2004)Microorganisms play an important role in the weathering of silicate minerals in many subsurface environments, but an unanswered question is whether the mineral plays an important role in the microbial ecology. Silicate ...
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(2003)This study examines the reduction of oxime carbamate pesticides (oxamyl, methomyl, and aldicarb) by FeII in aqueous suspensions containing twelve different (hydr)oxide and aluminosilicate minerals. In the absence of FeII, ...
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(1995)The importance of adsorption is virtually unknown at temperatures of > 25°C. This study indicates that interactions between organic acids and mineral surfaces may control Al transport during clastic diagenesis. Oxalate ...
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(2000)Although dissimilatory iron reducing bacteria (DIRB) are capable of reducing a number of metals in oxides and soluble forms, the factors controlling the rate/extent of magnetite reduction and the nature of the mineral ...
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(1998)In order to constrain the role of fluid phases during metasomatic processes in the upper mantle, trace element partition coefficients for Ba, Sr, Pb, Nb, Ta, Zr, Hf, Ti, La, Ce, Sm, Tb, and Yb between aqueous fluids and ...
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(1998)In order to constrain the role of fluid phases during metasomatic processes in the upper mantle, trace element partition coefficients for Ba, Sr, Pb, Nb, Ta, Zr, Hf, Ti, La, Ce, Sm, Tb, and Yb between aqueous fluids and ...
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(2004)Phase equilibria in the system CaO–MgO–SiO2–CO2–H2O–NaCl are calculated to illustrate phase relations in metacarbonates over a wide-range of P–T–X[H2O–CO2–NaCl] conditions. Calculations are performed using the equation of ...
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(1995)Aragonite, high-Mg calcite, and Mg-free calcite have been grown under monitored laboratory conditions to investigate mineral-fluid partitioning and isotopic fractionation of boron into carbonates. At pH # 8, both polymorphs ...
Now showing items 7277-7296 of 21934