Organic-rich lacustrine shales in the Upper Triassic Yanchang Formation with thermal maturity mainly oil window are main shale and gas system strata of Ordos Basin, China. Pore systems important for storage transfer gas. The objectives this study to identify pore types structures investigate controlling factors types, structures, total porosities Shale. In study, organic-rich mudstones, mudston...

Changes in the record of vertebrate-assemblage zones in the Karoo Basin, South Africa, serve as a model for the response of terrestrial ecosystems to the end-Permian biotic crisis. Vertebrate turnover from the Daptocephalus to Lystrosaurus Assemblage Zone is believed to have begun with the appearance of subtle siltstonecolor variance and is coeval with a unique, laminated lithofacies, both of w...

The gypsum mineralization occurred in the form of Satin Spar and Selenite in the south and southwest of the Fars province in the folded Zagros zone. In this region, Satin Spar mineralization has been formed as stratiform between the red marl and siltstone units of Late Miocene–Pliocene in Agha Jari, Bakhtiari, and the Gachsaran formations. The reserves of Satin Spar in this area are at least 20...

Establishing accurate palaeo-hydroclimatic reconstructions from lacustrine and marine archives is a long-standing challenge in palaeoenvironment studies. Closed-basin evaporites, especially halite, record episodes of extremely arid conditions during rapid climate change. However, the complex limnological behaviour deep hypersaline water bodies stochastic nature hydroclimatic regime its variatio...