The Cretaceous Period is considered the archetypical greenhouse interval, yet there mounting evidence for intermittent cooler climatic phases throughout this geologic span. Few continental climate histories exist south of paleoequator, and fewer still Africa during time. Galula Formation one few exposed fossiliferous sedimentary successions from what now subequatorial that also contains paleoso...

Based on multibeam bathymetric data and high-resolution shallow sub-bottom profiles acquired during China’s 10th Arctic Scientific Expedition Cruise in 2019, a sediment wave field was found the western slope of Chukchi Rise, Ocean. This developed lower with water depths between 1200 m 1800 stretched 15 km downslope direction. It comprised several parallel waves, wavelengths ranging from 700 to ...

The middle–late Miocene siliceous mudstones and siltstones of the Akita Aomori regions in Northern Honshu, Japan, provide an excellent geological record paleoenvironment Japan Sea. In this paper, we present results sedimentological geochemical analyses Akaishi Odoji Formations from Tsugaru Basin region Onnagawa Formation Sugisawa area region. Lithofacies descriptions, compositions (including ma...

This research focusses on the facies distribution, paleoenvironment and paleoecology of the foraminifera of the Guri Member in the northern Bandar Abbas Hinterland located in the Roydar area of southern Iran. The Guri Member is 570 meters thick and composed of limestone, argillaceous limestone and marl. The distribution of the foraminifera in the study area indicates the existence of three bioz...

The organic-rich shales and mudstones of the Middle Permian are most important unconventional petroleum targets in southern Junggar Basin northwestern China. Although numerous studies have been vigorously conducted on paleoenvironment reconstructions, organic matter enrichment mechanism is still controversial due to utilization problematic geochemical proxies established early studies. In this ...

Shale oil is an unconventional resource that needs to be developed and utilized urgently. However, the Chang 7 shale in Ordos Basin, as most typical continental source rock China, limited by study of organic matter (OM) enrichment factors lacustrine facies, there are still controversies about controlling factors, which limit progress gas exploration. This paper aims reconstruct paleoenvironment...