Lower Permian Fengcheng Formation is considered to be a high-quality alkaline lacustrine shale oil resource in the Junggar Basin, NW China. Based on core and thin section observation, X-ray diffraction, scanning electron microscope, low-pressure N 2 adsorption, high-pressure mercury intrusion porosimetry, different lithofacies, pore structures were examined. According mineral composition, shale...

The paper focuses on the analysis of values static modulus deformation obtained by application test procedure specified in methodology for diagnostics sub-ballast layers used German railways (DIN 18 134) and Railways Slovak Republic (Regulation TS4). purpose study was to determine correlation between measured according above-mentioned methodologies based a series experimental measurements an fi...

The concentric layers of ooids from the modern environment are mostly aragonite and those ancient calcite Mg-calcite. Dolomitic rare usually formed via replacement or calcite. Here, dolomitic were found in Pliocene Shizigou Formation Qaidam Basin, Northern Tibet Plateau. This paper focuses on whether is a primary precipitate. Optical microscope scanning electron observation, combined with X-ray...