Results 31 to 40 of about 4,225,085 (180)

Origin of structurally controlled hydrothermal dolomite in epigenetic karst system during shallow burial: An example from Middle Permian Maokou Formation, central Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2016
Based on the outcrops, drilling cores, thin sections observation and geochemical analysis, studies were done on the genesis of dolomite in the Middle Permian of central Sichuan Basin. Mosaic fine-crystalline dolomite and subhedral-euhedral siliceous fine-
Hong LIU   +8 more
doaj   +2 more sources

Analysis of Rock Mechanical Characteristics and Establishment of an Evaluation System for Coal Measures in the Longtan Formation, Guizhou Province. [PDF]

open access: yesACS Omega
The mechanical properties of coal measure rocks and their evaluation significantly impact the process and efficacy of coal measure exploration and development. This study focuses on the Guizhou Longtan Formation coal measure. The mechanical and fracturing characteristics of coal measure rock samples are analyzed via well coring, geophysical logging ...
Liang Y, Cao L, Sang S, Zhang Y.
europepmc   +4 more sources

Identification and Application of Favorable Lithofacies Associations in the Transitional Facies of the Permian Longtan Formation in Central and Southern Sichuan Basin

open access: yesMinerals
The transitional shale system of the Longtan Formation (LTF) is widely distributed in the Sichuan Basin. However, the lithofacies of the LTF shale system exhibit vertical variations, with frequent interbedding of blocks, and shale–sand–coal sequences, which makes identifying “sweet spots” a challenging task.
Wang, Longyi   +11 more
openaire   +2 more sources

A Non-Channel Function of CFTR: Attenuating Mitochondrial Oxidative Stress and Cardiomyocyte Senescence via Stabilization by USP45. [PDF]

open access: yesAging Cell
USP45 stabilizes CFTR through deubiquitination, thereby activating PMCA, which inhibits calcium/chloride overload and mitochondrial oxidative stress in senescent cardiomyocytes, ultimately alleviating cardiomyocyte senescence. ABSTRACT Cardiomyocyte senescence drives cardiovascular disease, underscoring the need to define its molecular mechanisms.
Chen C   +10 more
europepmc   +2 more sources

Enrichment Characteristics and Genetic Analysis of Rare Earth Elements in the Lower Longtan Formation Coal of Qianbei Coalfield, Guizhou Province. [PDF]

open access: yesACS Omega
Rare earth elements and yttrium (REY) are enriched in the coal of the lower Longtan Formation, Late Permian, in western Guizhou Province. This study focuses on the No. 15 coal seam of the lower Longtan Formation in the Qianbei Coalfield, with coal samples collected from 14 coal mines.
Li Y   +7 more
europepmc   +3 more sources

Pore system and methane adsorption capacity features of marine and marine-continental transitional shale in the Sichuan Basin, SW China

open access: yesFrontiers in Earth Science, 2023
Recently, significant achievements have been made in the gas exploration of marine Longmaxi shale in China. As exploration efforts have advanced, the exploration targets have gradually expanded to other sedimentary systems (marine-continental ...
Enze Wang   +4 more
doaj   +1 more source

Mineral composition characteristics and petroleum geological significance of tight sandstone of Longtan Formation in Weixin area, eastern Yunnan

open access: yes, 2022
Tight gas is an unconventional resource developed in low-porosity and ultra-low permeability sandstone and has rich potential oil and gas reserves. However, due to its tight and low permeability, fracturing is a necessary means for efficient development ...
Huitong, XING   +6 more
core   +1 more source

Geological conditions and exploration potential of Permian marine–continent transitional facies shale gas in the Sichuan Basin

open access: yesNatural Gas Industry B, 2019
Marine–continent transitional facies shale of the Longtan Fm, Upper Permian is an important source rock stratum in the Sichuan Basin. The previous researches on it mainly focus more on source rock evaluation, but less on shale gas accumulation.
Xusheng Guo   +4 more
doaj   +1 more source

Elemental Geochemical Characteristics and Organic Matter Enrichment Model of Marine-Continental Transitional Shale in Longtan Formation, Southern Sichuan Basin. [PDF]

open access: yesACS Omega
The Upper Permian Longtan Formation in the southern Sichuan Basin exhibits significant shale gas potential, but its paleoenvironment and organic matter enrichment mechanisms remain poorly constrained. This study integrates vitrinite reflectance, rock pyrolysis, mineralogical analysis, and major/trace element geochemistry to elucidate organic matter ...
Gao W, Fu Y, Li H, Chen S.
europepmc   +3 more sources

Research on the renovation of Longtan Village in Guizhou Province based on spatial syntax [PDF]

open access: yes, 2021
With the gradual deepening of National Rural Revitalization Strategy, investment, tourism of traditional natural villages has become a hot spot in recent years.
Yang Xu   +5 more
core   +1 more source

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