Organic-matter-rich shales of China
Organic-matter-rich shales are the main target rocks for unconventional oil and gas
exploration and development across the world. In China, shale-gas geological resources …
exploration and development across the world. In China, shale-gas geological resources …
Total organic carbon, organic phosphorus, and biogenic barium fluxes as proxies for paleomarine productivity
Although marine productivity is a key parameter in the global carbon cycle, reliable
estimation of productivity in ancient marine systems has proven difficult. In this study, we …
estimation of productivity in ancient marine systems has proven difficult. In this study, we …
Elemental proxies for paleosalinity analysis of ancient shales and mudrocks
Salinity is a fundamental property of watermasses that is useful in paleoenvironmental and
paleoecological studies, yet the theory of application of geochemical proxies to paleosalinity …
paleoecological studies, yet the theory of application of geochemical proxies to paleosalinity …
Intensified continental chemical weathering and carbon-cycle perturbations linked to volcanism during the Triassic–Jurassic transition
Direct evidence of intense chemical weathering induced by volcanism is rare in sedimentary
successions. Here, we undertake a multiproxy analysis (including organic carbon isotopes …
successions. Here, we undertake a multiproxy analysis (including organic carbon isotopes …
Permian–Triassic mass extinction pulses driven by major marine carbon cycle perturbations
Abstract The Permian/Triassic boundary approximately 251.9 million years ago marked the
most severe environmental crisis identified in the geological record, which dictated the …
most severe environmental crisis identified in the geological record, which dictated the …
Depositional environment and organic matter accumulation of Upper Ordovician–Lower Silurian marine shale in the Upper Yangtze Platform, South China
The main controlling factors of organic matter accumulation in the Upper Ordovician Wufeng–
Lower Silurian Longmaxi Formations are complex and remain highly controversial. This …
Lower Silurian Longmaxi Formations are complex and remain highly controversial. This …
Evidence for a prolonged Permian–Triassic extinction interval from global marine mercury records
The latest Permian mass extinction, the most devastating biocrisis of the Phanerozoic, has
been widely attributed to eruptions of the Siberian Traps Large Igneous Province, although …
been widely attributed to eruptions of the Siberian Traps Large Igneous Province, although …
A nutrient control on marine anoxia during the end-Permian mass extinction
M Schobben, WJ Foster, ARN Sleveland… - Nature …, 2020 - nature.com
Oxygen deprivation and hydrogen sulfide toxicity are considered potent kill mechanisms
during the mass extinction just before the Permian–Triassic boundary (~ 251.9 million years …
during the mass extinction just before the Permian–Triassic boundary (~ 251.9 million years …
Redox changes in the outer Yangtze Sea (South China) through the Hirnantian Glaciation and their implications for the end-Ordovician biocrisis
Two pulses of faunal mortality occurred during the Late Ordovician mass extinction (ca. 445
Ma). This biocrisis is recorded in Hirnantian strata of South China as a stepwise extinction of …
Ma). This biocrisis is recorded in Hirnantian strata of South China as a stepwise extinction of …
Organic matter enrichment due to high primary productivity in the deep-water shelf: Insights from the lower Cambrian Qiongzhusi shales of the central Sichuan Basin …
Y Li, G Liu, Z Song, B Zhang, M Sun, X Tian… - Journal of Asian Earth …, 2022 - Elsevier
The formation and enrichment mechanisms of organic-rich shales under different marine
environments remain unclear. Recently, Cambrian Qiongzhusi (QZS) shales with greater …
environments remain unclear. Recently, Cambrian Qiongzhusi (QZS) shales with greater …