The article deals with the lithofacial features of Asselian and Sakmarian limestone Cisuralian Series Permian System, composing particular mountains Yuraktau, Kushtau Tratau on right bank Belaya River near city Sterlitamak in Bashkir PreUrals. Biohermic bioclastic (detrital) lithofacies are distinguished composition. types represented by bryozoans coral framestones rudstones, tubiphytes packsto...

Lacustrine mudrocks are composed of minerals and organic matter (OM). The origin preservation OM two controlling factors the hydrocarbon generation capacity mudrocks. It is a key method in source rock research to study deposition process from view sedimentary environment. Following this idea, reason for discrepancy production between northern southern part Dongpu Sag analyzed discussed. lacustr...

Organic-rich lacustrine shales are widely developed in China, and they have long been simply regarded as homogeneous source rocks, which restricts the understanding of intrasource oil accumulation. At present, study LXF (Lower Member Xingouzui Formation) Jianghan Basin an unconventional reservoir is still its infancy, hydrocarbon accumulation mechanism unclear. Geochemical mineralogical studies...

The Qaidam Basin is one of the major coal-bearing basins in northeastern China with coal seams mainly preserved Lower–Middle Jurassic. Middle Jurassic sedimentary environment, sequence stratigraphy, paleoclimate, and accumulation have been extensively studied, while characteristics depositional evolution Lower series are less well known. We systematically analysed facies association, system, ba...

The structure of S Oilfield Bohai sea area in China is located the low uplift slope zone Dongwa Laibei Huanghekou depression. target interval oilfield belongs to Paleogene layered structural oil reservoir under influence igneous rocks. Due widespread development rocks, and diversity rock types, complex, lateral changes are intense. differences volcanic eruption intensity materials made masses o...

Thick Quaternary alluvial and floodplain sediments in north Hebei Plain provide important information for understanding local paleoenvironmental paleoclimatic variations. A 120.8 m drilled core (SHBZK-1) was recovered to determine the late Pleistocene climatic fluctuations, sedimentary environment their coevolutionary relationship. Laboratory analysis, including grain size distribution, magneti...