Results 31 to 40 of about 1,278 (244)

The Fluid Evolution of Ancient Carbonate Reservoirs in Sichuan Basin and Its Implication for Shale Gas Exploration

open access: yesFrontiers in Earth Science, 2021
Sichuan Basin is the only successful basin for shale gas exploration in China. In addition to the main shale in the Lower Silurian Longmaxi formation, the lower Cambrian Qiongzhusi shale is an important potential formation.
Zhenzhu Zhou   +3 more
doaj   +1 more source

Features and origin of natural gas in the Sinian–Cambrian of central Sichuan paleo-uplift, Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2015
Based on the new drilling data and field outcrop data of the Gaoshiti–Moxi area, the geochemical characteristics of the Sinian-Cambrian natural gas are studied and analyzed, including gas composition, isotope, light hydrocarbon, kerogen carbon isotope ...
Guoqi WEI   +8 more
doaj   +1 more source

Controls on the evolution of Ediacaran metazoan ecosystems: A redox perspective [PDF]

open access: yes, 2017
A growing number of detailed geochemical studies of Ediacaran (635–541 Ma) marine successions have provided snapshots into the redox environments that played host to the earliest known metazoans.
Aceñolaza   +254 more
core   +3 more sources

Tectonic paleogeography of Late Sinian and its significances for petroleum exploration in the middle-upper Yangtze region, South China

open access: yesPetroleum Exploration and Development, 2020
The paleotectonic pattern, lithofacies paleogeographic features, sedimentary evolution and its controlling effects on hydrocarbon accumulation assemblages during the depositional period of the Sinian Dengying Formation in middle-upper Yangtze region were
Zecheng WANG   +10 more
doaj   +1 more source

a new Pc-C boundary section [PDF]

open access: yes, 2016
The widespread, terminal Ediacaran Dengying Formation (~ 551–~ 542 Ma) of South China hosts one of the most prominent negative carbonate carbon isotope excursions in Earth's history and thus bears on the correlation of the Precambrian–Cambrian boundary ...
Gamper, A.   +4 more
core   +1 more source

Formation and evolution of intraplatform basin from the late Sinian to early Cambrian in Sichuan Basin, China

open access: yesPetroleum Research, 2017
Based on the drilling, logging, seismic and outcrop data, the formation and evolution of the late Sinian to early Cambrian intraplatform basin in Sichuan Basin was studied.
Hui Zhou   +9 more
doaj   +1 more source

Exploration status of the deep Sinian strata in the Sichuan Basin: Formation conditions of old giant carbonate oil/gas fields

open access: yesNatural Gas Industry B, 2020
To construct a giant Sichuan gas province, it is in an urgent need of exploring new replacement areas with abundant natural gas resources and great exploration potential. In this paper, the formation conditions (e.g.
Wenzhi Zhao   +9 more
doaj   +1 more source

Palaeoceanographic controls on spatial redox distribution over the Yangtze Platform during the Ediacaran–Cambrian transition [PDF]

open access: yes, 2016
The Ediacaran–Cambrian interval was an eventful transitional period, when dynamic interactions between the biosphere and its physical environment allowed the Earth System to cross into a new state, characterized by the presence of metazoans, more equable
Ader   +175 more
core   +2 more sources

Characteristics, controlling factors and exploration prospects of microbial dolomite reservoirs in the second member of Dengying Formation, Penglai-Zhongjiang area of central Sichuan Basin

open access: yesShiyou shiyan dizhi, 2023
The formation and evolution of dolomite reservoirs in the Sinian Dengying Formation in the Sichuan Basin have attracted much attention recently. Due to their economic significance for hosting natural gas resources, determining the key factors that govern
Long WEN   +10 more
doaj   +1 more source

Oceanic Redox State During the Early Cambrian: Insights From Mo‐S Isotopes and Geochemistry of Himalayan Shales

open access: yesGeochemistry, Geophysics, Geosystems, Volume 24, Issue 12, December 2023., 2023
Abstract The Precambrian‐Cambrian (Pc‐C) boundary marks significant biological, atmospheric, and oceanic changes. These changes include extinction of the Ediacaran fauna, initiation of complex lifeforms, and oxygenation of the atmosphere and oceans. In this contribution, elemental and Mo‐S isotopic compositions of organic‐rich shales overlying the Pc‐C
Achyuth Venugopal   +4 more
wiley   +1 more source

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