Abstract Peat forming environment strongly influences the economic value of any coal seam and coal-bearing strata. Hence, palaeoenvironmental studies provide important information for resource exploration. In this context, detailed on selected coals from Parvadeh Area, Iran, were conducted using sedimentology, petrology, X-ray diffraction (XRD), scanning electron microscopy- energy dispersive a...

This work investigates bituminite (amorphous sedimentary organic matter) in Upper Jurassic Kimmeridge Clay source rock via confocal laser scanning microscopy (CLSM) and atomic force (AFM). These petrographic tools were used to provide better understanding of the nature bituminite, which has been historically difficult identify differentiate from similar matter types rocks. As part an Internatio...

Abstract Knowledge of the timing closure Meso-Tethys Ocean as represented by Bangong–Nujiang Suture Zone, i.e., Lhasa-Qiangtang collision, is critical for understanding Mesozoic tectonics Tibetan Plateau. But this hotly debated; existing suggestions vary from Middle Jurassic (ca. 166 Ma) to Late Cretaceous 100 Ma). In study, we describe petrology Zhonggang igneous–sedimentary rocks in middle se...

Late Cretaceous sandstone succession of the Pab Formation in western Sulaiman Fold Thrust belt Pakistan was investigated for petrology and bulk rock chemistry to determine its source terrain, paleo-weathering tectonic setting. The formation is mainly comprised with reddish maroon color shale arenaceous limestone. Texturally, fine coarse grained, sub-angular well-rounded moderately well sorted. ...

The continental lake basin is a favorable accumulation area of shale oil and gas; however, the organic matter enrichment regularity in facies still controversial, which hinders exploration gas Sichuan Basin. In this study, relationship between sedimentary environment was analyzed by petrology inorganic geochemistry tests 153 samples. results show that different lithologic associations Da’anzhai...

anomolously low A1203, low Ti02 and are enriched in chromium and nick~A We present petrographic and chemical c ata on the Kamloops Lake picritic tmalts as we1 I as the stratigraphic setting for thwe ultramafic lavas. Age constraints derive From field relationships, Mineral chemistry indicates th 31 these ultramafic rocks represent mantle-deri.ed material which has undergone: minimal differentia...