Effect of silica diagenesis on porosity evolution of deep gas shale reservoir of the Lower Paleozoic Wufeng-Longmaxi formations, Sichuan Basin
P Gao, X **ao, D Hu, GG Lash, R Liu, Y Cai… - Marine and Petroleum …, 2022 - Elsevier
Silica diagenesis is critical to reservoir properties of shale, including porosity and rock
mechanical properties, thus exerting a significant effect on shale gas production, but the role …
mechanical properties, thus exerting a significant effect on shale gas production, but the role …
Silicification and Si cycling in a silica-rich ocean during the Ediacaran-Cambrian transition
P Gao, S Li, GG Lash, Z He, X **ao, D Zhang, Y Hao - Chemical Geology, 2020 - Elsevier
Abstract The upper Ediacaran-lower Cambrian (551–526 Ma) sedimentary succession of the
Yangtze Block, South China, hosts abundant chert that formed contemporaneously with the …
Yangtze Block, South China, hosts abundant chert that formed contemporaneously with the …
Controls on silica enrichment of lower cambrian organic-rich shale deposits
P Gao, Z He, GG Lash, Q Zhou, X **ao - Marine and Petroleum Geology, 2021 - Elsevier
The factors controlling silica enrichment of the Lower Cambrian sedimentary succession
have been disputed for a long time. This paper describes results of a petrological and …
have been disputed for a long time. This paper describes results of a petrological and …
Mixed seawater and hydrothermal sources of nodular chert in Middle Permian limestone on the eastern Paleo-Tethys margin (South China)
P Gao, Z He, GG Lash, S Li, X **ao, Y Han… - Palaeogeography …, 2020 - Elsevier
Middle Permian limestone and marl of the Maokou Formation deposited along the eastern
Paleo-Tethys margin (South China) host abundant chert nodules that formed in association …
Paleo-Tethys margin (South China) host abundant chert nodules that formed in association …
Comparison of silica diagenesis between the lower Cambrian and lower Silurian shale reservoirs in the middle–upper Yangtze platform (southern China)
P Gao, X **ao, D Hu, GG Lash, R Liu… - AAPG …, 2024 - pubs.geoscienceworld.org
The lower Cambrian and lower Silurian shale reservoirs of southern China display
significant differences in pore characteristics that may reflect the varying effects of silica …
significant differences in pore characteristics that may reflect the varying effects of silica …
Diagenetic barite-calcite-pyrite nodules in the Silurian Longmaxi Formation of the Yangtze Block, South China: A plausible record of sulfate-methane transition zone …
B Zan, C Mou, GG Lash, J Yan, Q Hou - Chemical Geology, 2022 - Elsevier
The sulfate-methane transition zone (SMTZ) serves as an important geochemical transition
especially during early diagenesis. Organoclastic sulfate reduction (OSR), sulfate-driven …
especially during early diagenesis. Organoclastic sulfate reduction (OSR), sulfate-driven …
Diagenesis, compaction strain and deformation associated with chert and carbonate concretions in organic‐rich marl and phosphorite; Upper Cretaceous to Eocene …
This paper presents an integrated petrographic–geochemical–geomechanical study of the
growth mechanisms of carbonate and chert concretions observed at outcrop and core from …
growth mechanisms of carbonate and chert concretions observed at outcrop and core from …
Origin and preservation mechanisms of organic matter in carbonate concretions from Lower Cambrian black shales in South China
X Fang, Q Zhang, L Wu, A Geng, S Liu, P Wang… - Organic …, 2024 - Elsevier
Carbonate concretions are widely used in paleoclimate, paleoenvironmental, and
paleontological studies, and even in the study of potential life on Mars. These petrological …
paleontological studies, and even in the study of potential life on Mars. These petrological …
Nanopore structures and controlling factors of the Early Cambrian shale reservoir in the Middle Yangtze Platform, South China
G Li, X **ao, H Gai, C Lu, Y Feng - Journal of Asian Earth Sciences, 2023 - Elsevier
At present, the characteristics and controlling factors of nanopore structure in shale
reservoirs are still not well understood owing to the concurrence of both organic matter (OM) …
reservoirs are still not well understood owing to the concurrence of both organic matter (OM) …
Middle Permian astronomically forced upwelling in the Yangtze carbonate platform: Implications for organic matter preservation and benthic biomass
H Lei, Q Jiang, W Huang, P Luo - Marine and Petroleum Geology, 2024 - Elsevier
The continental shelf and slope, with upwelling systems, are usually accompanied by the
formation of oxygen minimum zones, thereby stimulating marine paleoproductivity and …
formation of oxygen minimum zones, thereby stimulating marine paleoproductivity and …