Results 101 to 110 of about 4,180,597 (190)

The characteristics and controlling factors of facies-controlled coastal eogenetic karst: insights from the Fourth Member of Neoproterozoic Dengying Formation, Central Sichuan Basin, China

open access: yes, 2019
Karst porosity system is widely developed in the Fourth Member of Neoproterozoic Dengying Formation in Central Sichuan Basin of China. The result of the previous exploration in this area based on the theory of telogenetic karst, which mainly focused on ...
Che, Zhengqiang   +2 more
core   +1 more source

The evolution of the Sinian–Early Cambrian E’xi Trough in the Central Yangtze region and its geological significance for natural gas

open access: yesDizhi lixue xuebao
Objective  From the Neoproterozoic Sinian to the Early Cambrian periods, extensive basins in South China accumulated substantial volumes of organic-rich shale and carbonate rocks, providing high-quality source rocks and reservoirs.
CHEN Ke, LU Yanxin, WANG Yuluo, LI Fei
doaj   +1 more source

Taphonomic Analysis of the Sinotubulites from the Shibantan Member of the Dengying Formation in Yangtze Gorges Area (China)

open access: yesMinerals
Tubular fossils are a unique metazoan group emerging in the late Ediacaran Period and demonstrating early skeletogenesis and an increase in the diversity of early biocommunities. Among the known records, Sinotubulites is widely distributed and distinct in morphology and ultrastructure, holding important evolutionary and stratigraphic significance ...
Xinjie Wang   +3 more
openaire   +1 more source

Timing the termination of the Doushantuo negative carbon isotope excursion: evidence from U-Pb ages from the Dengying and Liuchapo formations, South China

open access: yes, 2018
The Doushantuo negative carbon isotope excursion (DOUNCE) is the largest known marine inorganic carbon isotope anomaly. The origin of this pronounced negative excursion is still an enigmatic issue that attracts geologists.
Gan, Tian   +7 more
core   +1 more source

Effectiveness Log Evaluation of Ultra-Deep Carbonate Reservoirs Based on Multi-Scale Fracture-Cave Parameter

open access: yesCejing jishu
The ultra-deep carbonate reservoirs in member 2 of the Dengying formation in the Penglai gas area of the Sichuan basin exhibit lithological diversity, developed fractures and dissolution pores/caves, low matrix porosity, and strong heterogeneity.
YIN Rong   +5 more
doaj   +1 more source

Iron Limitation Enhance Organic Matter Sulfurization within the Limestones of the Ediacaran Dengying Formation [PDF]

open access: yesGoldschmidt Abstracts, 2020
Fumihiro MATSU’URA   +6 more
openaire   +1 more source

Differential Karst Control of Carbonate Reservoirs: A Case Study of the Fourth Member of Sinian Dengying Formation in Gaoshiti-Moxi, Sichuan Basin, SW China

open access: yes
The dolomite of the fourth member of Dengying Formation in Gaoshiti-Moxi area of central Sichuan Basin is rich in hydrocarbon resources. It has experienced superimposition-reformation of multistage karstification, and is the key target for studying deep ...
Guoquan Nie   +6 more
core   +1 more source

Microfacies and Facies Differentiation of the Late Ediacaran Dengying Formation on the Northern Slope of the Central Sichuan Paleo-Uplift, Southwest China

open access: yes
The Late Ediacaran Dengying Formation in the Sichuan Basin is a key target for deep-gas exploration, yet the controls on facies differentiation in the Penglai area, on the northern slope of the Central Sichuan Paleo-Uplift, remain debated.
Yueyun Wang   +10 more
core   +1 more source

A preliminary investigation of pore development mechanisms in highly matured solid bitumen: Implications from the Ediacaran Dengying Formation solid bitumen in the central Sichuan Basin, Southwest China

open access: yes
Although pores in solid bitumen are crucial for shale reservoirs, their development mechanisms have not been fully understood partly due to the small size of solid bitumen in shales and the difficulty in its discrimination from residual kerogen. However,
Zhou, Qin   +8 more
core   +1 more source

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