Results 71 to 80 of about 13,016 (258)
Crystallization of topaz-muscovite-quartz assemblage in F-rich melt
, 1999 The crystallization of a topaz-muscovite-quartz assemblages in a melt has been achieved experimentally in the system albite granite-H2O-HF under conditions of 100 MPa and 6 wt.% F.
Xiong XL, Zhao ZH, Zhu JC, Rao B
core
Известия высших учебных заведений: Геология и разведкаBackground. The mineral association of ruby in the Snezhnoye deposit is represented by 7 rock-forming and 19 accessory minerals. Here, all minerals vary in their composition due to isomorphism.
A. K. Litvinenko, Sh. A. Odinaev
doaj +1 more source
The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman
Journal of Petroleum Geology, EarlyView.ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi +4 more
wiley +1 more source
Concentration-Dependent Adsorption of CsI at the Muscovite–Electrolyte Interface
, 2018 The interfacial structure of muscovite in contact with aqueous CsI solutions was measured using surface X-ray diffraction for several CsI concentrations (2–1000 mM).
Paolo Accordini (4985192) +9 more
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Vertical profiling of shock attenuation at the Rochechouart impact structure, France
Meteoritics &Planetary Science, EarlyView.Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska +4 more
wiley +1 more source
, 2014 muscovite mica, garnet-richhttps://ecommons.udayton.edu/geo_metamorphic/1003/thumbnail ...
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Chromium-containing muscovite: crystal chemistry and XANES Spectroscopy
, 2001 To verify chromium enrichment of the muscovite layer, a crystal chemical and XANES study on chromium-containing muscovite crystals from the South Island of New Zealand was carried out.
G. Cibin +13 more
core +1 more source
Confirming the impact origin of the São Miguel do Tapuio structure, northeastern Brazil
Meteoritics &Planetary Science, EarlyView.Abstract The São Miguel do Tapuio structure (SMT) is a remarkable, nearcircular feature of about 21 km diameter, centered at 5°37.6′ S, 41°23.3′ W in Piauí state, northeastern Brazil. The structure is located within the sedimentary strata of the Paleozoic–Mesozoic Parnaíba Basin and predominantly comprises sandstones of the Devonian Pimenteiras and ...
Alvaro Penteado Crósta +9 more
wiley +1 more source
Effect of Cu2+ on the Activation to Muscovite Using Electrochemical Pretreatment
, 2020 In this study, electrochemistry pretreatment flotation of muscovite was carried out and the flotation behavior and mechanism of muscovite in the system of sodium oleate and Cu2+ion was characterized by solution pH value detection, solution conductivity ...
Wei Xiao +4 more
core +1 more source