Marine organic-rich shale is widely distributed in the Upper Ordovician Wufeng Formation (WF-F) and Silurian Longmaxi (LMX-F), making it an important target for gas exploration development. In order to clarify paleoenvironment evolution characteristics effect of depositional environment on organic matter (OM) accumulation marine Formations, a series geochemical petrological experiments were car...

Late Carboniferous to early Permian organic-rich sedimentary successions of late-orogenic continental basins from the northeastern Massif Central (France) coincide with both Variscan mountain dismantling and acme long-lasting Paleozoic Ice Age. Here, we investigate carbon nitrogen cycles in newly dated Decize–La Machine Autun during these geodynamic climate upheavals. The organic matter has bee...

The definition of pre-Messinian source rocks in the eastern Mediterranean is paramount importance for hydrocarbon exploration because ability salt to act as a high-quality seal rock. This research evaluates organic geochemical features Upper Miocene (Tortonian—Messinian) sedimentary succession onshore Crete Island, Greece. study employs original (Messinian, Agios Myron Fm) and published (Torton...

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...

There is often over 50% carbon loss during the thermal conversion of biomass into biochar, leading to it controversy for the biochar formation as a carbon sequestration strategy. Sometimes the biochar also seems not to be stable enough due to physical, chemical, and biological reactions in soils. In this study, three phosphorus-bearing materials, H3PO4, phosphate rock tailing (PRT), and triple ...

The UN Sustainable Development Goals highlight the myriad of socio-economic and environmental challenges occurring as a result anthropogenic chemical pollution. Urban sediments from informal settlements (slums) on Nairobi, Ngong Mathare Rivers (n = 25), were evaluated for sediment quality. Microtox bioassay identified 8 sites toxic, 9 moderately toxic non-toxic. Slum characterised by high total...