Abundant graphite particles occur in amphibolite-grade quartzite of the Archean-Paleoproterozoic Wutai Metamorphic Complex in the Wutaishan area of North China. Petrographic thin section observations suggest that the graphite particles occur within and between quartzite clasts and are heterogeneous in origin. Using HF maceration techniques, the Wutai graphite particles were extracted for furthe...

Enhanced production of unconventional hydrocarbons in the United States has driven interest in natural gas development globally, but simultaneously raised concerns regarding water quantity and quality impacts associated with hydrocarbon extraction. We conducted a pre-development assessment of groundwater geochemistry in the critically water-restricted Karoo Basin, South Africa. Twenty-two sprin...

Lithium (Li) can be found in many minerals, including lepidolite. Lepidolite is pegmatite-related tin deposits the Phang Nga area southern Thailand. According to their field occurrence, petrography, mineral chemistry, and whole-rock geochemistry, Li-bearing pegmatites granitic rocks study linked Thailand as part of SE Asian belt. The are characterized by an abundance lepidolite, K-feldspar, pla...

In order to find out the enrichment mechanism and forming type of deep shale gas, taking Longmaxi Formation in Desheng–Yunjin Syncline area Sichuan Basin as an example, we determined mineralogy, organic geochemistry, physical property analysis, gas water content, influence three factors, namely sedimentation, structural conditions, hydrogeological on gas. The results show that is a good hydroca...

Introduction: Metadolerite dykes in the Western Dharwar Craton represent oldest generation of mafic dyke swarms craton. The emplacement these after a period crust building activity and komatiite volcanism, helps to understand evolution Subcontinental Lithospheric Mantle (SCLM) Archean dynamics. Methods: We report whole rock major, trace element geochemistry Sr-Nd isotope characteristics for thi...

Characterizing the origin of natural fractures in organic-rich fine-grained deposits is key to constraining permeability evolution these potential source rocks and tight reservoirs, as well assess hydraulic connectivity fluid systems which they develop. Differently oriented calcite-filled (i.e. veins), hosted by mudrocks Lower-Middle Triassic Montney-Doig unconventional resource play (Western C...

available online at http://meteoritics.org Thermodynamic constraints on fayalite formation on parent bodies of chondrites Mikhail Yu. ZOLOTOV1*, Mikhail V. MIRONENKO2, and Everett L. SHOCK1, 3 1School of Earth and Space Exploration, Arizona State University, Tempe, Arizona 85287–1404, USA 2Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygin Street ...