Abstract Organic matter pores are of important significance in the shale formation system rich organic matters. Although a lot studies have discussed controlling factors past, it still lacks quantitative analysis on contributions macerals to pores. In this study, case study based overmature marine facies reservoir first submember Longmaxi Formation Silurian Weiyuan area was carried out. Besides...

The end-Triassic mass extinction event (∼201.4 million years ago) caused major faunal and floral turnovers in both the marine and terrestrial realms. The biotic changes have been attributed to extreme greenhouse warming across the Triassic-Jurassic (T-J) boundary caused by massive release of carbon dioxide and/or methane related to extensive volcanism in the Central Atlantic Magmatic Province (...

At a symposium honoring the 50th anniversary of University Chicago, Gilbert Cady introduced concept phyterals as means distinguishing actual plant fossils from macerals composed fossils. In this sense, vitrinite and fusinite, while distinct macerals, are viewed same phyteral. contrast to such process-induced in vs. phyterals, funginite, regardless rank, age, or type fungus producing structure, ...

An understanding of the carbon cycle within arctic sediments requires discrimination between the terrigenous and marine components of organic carbon, insight into the removal mechanisms for labile carbon during burial and appreciation of shelf-to-basin processes. Using a large data set of multiple molecular organic markers (alkanes, alkanols, sterols, saturated and unsaturated fatty acids, dica...

Abstract Methane content in a coal seam is necessary parameter for evaluating bed gas, and it poses an environmental risk to underground mining activities. Keeping pace with comprehensive studies of 12 samples were selected from the Sitarampur block Raniganj Coalfield analysis. The Petrographic examination illustrated that significant values reactive macerals present demonstrate organic matter ...

Detailed organic petrography analysis were conducted on drill core and cutting samples from the Nahr Umr (Middle Albian), Burgan (Lower Albian) and Ratawi (Hauterivian) formations on the Soroosh and Nowrooz fields, NW part of the Iranian sector of the Persian Gulf. The thermal maturity of the Middle Albian Nahr Umr Formation appears to have reached the top of the oil window. The underlying Burg...