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Zircon U-Pb age, Trace Element, and Hf Isotopic Compositions of Nordmarkite in the Lizhuang Rare Earth Element Deposit in the Western Margin of the Yangtze Block
nordmarkite REE deposit Hf isotopic characteristics of zircon Lizhuang
2018/4/10
The Mianning–Dechang (MD) rare earth element (REE) belt, located in the northern Kangdian axis (KDA) in the western margin of the Yangtze platform, is one of the most economically significant REE mine...
Magma Interaction Processes Inferred from Fe-Ti Oxide Compositions in the Dölek and Sarıçiçek Plutons, Eastern Turkey
Dö lek and Sarı ç iç ek plutons Eastern Turkey magma interaction magnetite-ilmenite thermometry/oxygen barometry
2009/7/7
Magnetite-ulvöspinel and ilmenite-hematite solid solution intergrowths from the high-K calc-alkaline Dölek and Sarıçiçek plutons, Eastern Turkey, were investigated using m...
Oxygen Isotope Compositions of Mixed-Layer Serpentine-Chlorite and Illite-Smectite in the Tuscaloosa Formation (U.S. Gulf Coast): Implications for Pore Fluids and Mineralogic Reactions
Diagenesis Illite-Smectite Oxygen Isotopes Sandstone Serpentine-Chlorite Tuscaloosa Formation
2011/12/8
Abstract: Oxygen isotopic compositions were determined for coexisting mixed-layer serpentine-chlorite (Sp-Ch) and illite-smectite (I-S) from 5 Tuscaloosa Formation sandstone cores sampled between 1937...
Melting experiments on komatiite analog compositions at 5 GPa
Melting experiments komatiite analog compositions 5 GPa
2012/4/5
Theresultsofmulti-anvilmeltingexperimentsarereportedforawiderangeofkomatiite
analogmixeswithcompositionsinthesystemCaO-MgO-FeO-FeO Fe -Al O -SiO at
5GPa(CMASandCMFAS Fe ).Theliquiduscrystallization?...
Mutual exsolution in hornblende and cummingtonite: Compositions, lamellar orientations, and exsolution temperatures
Mutual exsolution hornblende cummingtonite Compositions lamellar orientations exsolution temperatures
2012/4/6
Exsolvedpairsofhornblende and cummingtonite from two localities in southern New England, U.S.A.,have been studied using transmission electron microscopy(TEM) to measurethe crystallographic orientation...
Experimental reversals of chlorite compositions in divariant MgO + Al2O3 + SiO2 + H2O assemblages
Experimental reversals chlorite compositions MgO + Al2O3 + SiO2 + H2O assemblages
2012/4/6
The compositions ofchlorite in divariant assemblages involving orthopyroxene + for-sterite and spinel + corundum werereversed at a range oftemperatures for P= 14kbar and a range of pressures for T = 8...
Implications of Linearly Correlated Oxygen and Hydrogen Isotopic Compositions for Kaolinite and Illite in the Magnus Sandstone, North Sea
Illite Kaolinite Stable isotopes Porewater
2011/12/29
Authigenic kaolinite and illite are important diagenetic minerals in the Magnus Sandstone, a giant oil reservoir in the northern North Sea. These clay minerals, separated from three wells, show consid...
Structures, Compositions, and X-ray Diffraction Identification of Dioctahedral Chlorites
Chemical composition Chlorite Cookeite Crystal structure Donbassite Sudoite X-ray powder diffraction
2012/1/5
Al-rich di,trioctahedral chlorite exists as the species cookeite and sudoite. Di,dioctahedral chlorite exists as the species donbassite. Cookeite has essential Li in its structure, sudoite has essenti...
Adsorption of Uranium from Solutions by Montmorillonite; Compositions and Properties of Uranyl Montmorillonites
Adsorption Cation exchange Interlayer cations Montmorillonite Uranium Uranyl montmorillonite
2011/11/22
Abstract: Wyoming montmorillonite, <2-祄 particle size, saturated with Na, K, Mg, Ca, and Ba ions, was reacted with uranyl nitrate solutions in the concentration range 1?00 ppm uranium. With constant a...
Formation, Compositions, and Properties of Hydroxy-Al- and Hydroxy-Mg-Montmorillonite
Hydrolysis Hydroxy interlayer Montmorillonite Swelling Thermal stability
2012/2/9
Hydroxy-Al- and hydroxy-Mg-montmorillonite were prepared by treating dispersed Na-montmorillonite with aluminum and magnesium nitrate solutions and titrating with NaOH solutions so that the OH/Al rati...
Chlorite and Illite Compositions from Upper Silurian Rock Salts, Retsof, New York
Chlorite Illite Compositions Silurian Rock Salts
2011/11/18
Abstract: Chlorite and illite are the major clay minerals in silicate assemblages from a rock salt bed in the Vernon Formation (Upper Silurian) at Retsof, New York. Textural features and Br content of...
The Nature of Garnierites—I Structures, Chemical Compositions and Color Characteristics
Nature of Garnierites
2011/11/18
Abstract: X-ray diffraction patterns of garnierites indicate that most samples resemble serpentine-group minerals or a talc-like mineral, or a mixture of these forms, and give respectively 7 Å a...
Determination of Chlorite Compositions by X-Ray Spacings and Intensities
Chlorite Compositions X-Ray Spacings Intensities
2012/2/20
The cell dimensions and compositions of four chlorites whose crystal structures have been determined in detail are used to test existing graphs and regression equations designed to give tetrahedral an...