Results 71 to 80 of about 1,278 (244)

Accumulation conditions and exploration directions of natural gas in deep subsalt Sinian-Cambrian System in the eastern Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2015
Based on comprehensive analysis of outcrops and drilling data, and interpretation of more than 6×104 km2 seismic data, this paper delineates the regional distribution of the gypsum-salt layers in Middle-Lower Cambrian in eastern Sichuan Basin, and ...
Zhidong GU   +6 more
doaj   +1 more source

The Ediacaran ‘Miaohe Member’ of South China: new insights from palaeoredox proxies and stable isotope data [PDF]

open access: yes, 2021
Throughout the Ediacaran Period, variable water-column redox conditions persisted along productive ocean margins due to a complex interplay between nutrient supply and oceanographic restriction. These changing conditions are considered to have influenced
Bridger, P   +5 more
core  

Diagenesis and reservoir quality of Neoproterozoic dolomitized microbialites following multi-stage diagenetic fluid activity: a case study of the Sinian Dengying Formation, China [PDF]

open access: yes, 2023
Neoproterozoic marine microbialites have been targets for exploration and hydrocarbon reservoir development. The original depositional fabric and diagenesis control the pore systems of microbialites, leading to the complicated origin of microbialite ...
Hengwei Guo   +7 more
core   +1 more source

Sedimentary and geochemical constraints on microbialite distribution in the terminal Ediacaran Dengying Formation, Upper Yangtze Platform

open access: greenPalaeogeography, Palaeoclimatology, Palaeoecology
Han Wang   +6 more
openalex   +2 more sources

A possible erect coralline alga from the Ediacaran Dengying Formation in the Zhenba area of South China

open access: yesJournal of Paleontology, 2022
AbstractStudies of molecular biology suggest a deep origin of coralline red algae in the Neoproterozoic, but unequivocal representatives have not been found in Precambrian rocks. Such scarcity in the fossil record significantly limits our knowledge regarding the origin and early evolution of this group.
Yuan Zhang, Xingliang Zhang
openaire   +1 more source

New Pattern of Uplift‐Depression of the Pre‐Cambrian Basement in the Sichuan Basin: Constraints From Multi‐Seismic Parameter Imaging

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 6, June 2025.
Abstract The structural configuration of the pre‐Cambrian basement in the Sichuan Basin, a highly promising region for hydrocarbon exploration, has been a subject of long‐standing debate. Here, we determined the fine‐scale three‐dimensional seismic models of the Sichuan Basin using 187,356 high‐quality P‐ and S‐wave travel time pairs recorded by 627 ...
Zhi Wang   +6 more
wiley   +1 more source

Tectonic evolution from Late Sinian to Early Paleozoic and natural gas exploration in northwestern Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2016
: Based on the field outcrops, drilling and seismic data of northwestern Sichuan Basin, this paper systematically discusses tectonic evolution characteristics from the Late Sinian to the Early Paleozoic, analyzes the petroleum geological significance ...
Zhidong GU   +8 more
doaj   +1 more source

The geochemical characteristics, distribution of marine source rocks and gas exploration potential in the northwestern Sichuan Basin, China

open access: yesJournal of Natural Gas Geoscience, 2021
In recent years, the northwestern part of the Sichuan Basin has become a popular location for natural gas exploration. However, up to this point, the geochemical characteristics and distribution of marine source rocks in this area have not been ...
Guoyi Hu   +4 more
doaj   +1 more source

Towards an improved understanding of Ca–Mg carbonates with nonplanar surfaces: An experimental approach

open access: yesSedimentology, Volume 72, Issue 1, Page 100-131, January 2025.
ABSTRACT Saddle dolomite is a Ca–Mg carbonate characterized by curved crystal faces, curved cleavage and sweeping extinction under cross‐polarized light. Saddle dolomite and, generally, Ca–Mg carbonates with curved crystal faces, are often assigned to the burial (hydrothermal) realm and serve as proxy archives for hydrogeochemical processes in ...
Yi‐Fan Zhang   +7 more
wiley   +1 more source

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