Results 41 to 50 of about 656,132 (170)

The compilation of 1∶500000 seismotectonic map of the Ordos active block and boundary zone

open access: yes地震科学进展
The 1∶500000 seismotectonic map of the Ordos active block and boundary zone is a special achievement of the national key research and development project “Research on dynamic model and strong earthquake risk of Ordos active block boundary zone” .
Qiyun Lei   +5 more
doaj   +1 more source

On philosophy and innovative thinking of oil & gas exploration and development: Commemoration of the first oil well on land in China, Well-Yan1

open access: yesYouqicang pingjia yu kaifa, 2022
Oil & gas exploration and development is a combination of innovative thinking and practice. Firstly, a geologist should have the concept of oil and gas in his mind.
HE Faqi, XU Bingwei, SHAO Longkan
doaj  

Affecting factors and application of the stable hydrogen isotopes of alkane gases

open access: yesPetroleum Exploration and Development, 2019
To study the composition, affecting factors of the stable hydrogen isotopes of alkane gases and their application to identification of the natural gas origin and maturities, the chemical and isotopic compositions of 118 gas samples of Carboniferous ...
Shipeng HUANG   +10 more
doaj   +1 more source

The Earliest Feathers from the Lower Cretaceous Dabeigou Formation of North Hebei: Implications for the Early Evolution of the Jehol Biota

open access: yesIntegrative Zoology, EarlyView.
This study reports two isolated feather fossils from the Lower Cretaceous Dabeigou Formation in northeastern China. Morphological analyses identified them as the earliest known feathered theropods (potentially including avian) in the Jehol Biota. This finding reveals a complex ecosystem at the dawn of the Jehol Biota, bridging the temporal and faunal ...
Qian Wu   +2 more
wiley   +1 more source

Formation conditions and main controlling factors of reservoirs in Jurassic Yan’an Formation in southwestern Ordos Basin

open access: yesYouqi dizhi yu caishoulu
The southwestern part of Ordos Basin is rich in oil and gas resources, and in recent years, a series of lithologic-structural reservoirs with small oil-bearing areas and high reserve abundance have been discovered in the Jurassic Yan’an Formation of the ...
QIU Xiangliang   +6 more
doaj   +1 more source

Conditions and timing for the precipitation of early marine diagenetic dolomite in the Triassic Dolomia Principale (northern Italy)

open access: yesSedimentology, EarlyView.
ABSTRACT Thermodynamic constraints and empirical evidence often suggest that fabric‐retentive replacement dolomites are stable carbonate minerals that preserve ancient seawater properties. This study evaluates this hypothesis by examining the Upper Triassic Dolomia Principale in Northern Italy.
Vivien Folliot   +8 more
wiley   +1 more source

DataSheet1_Sequence stratigraphy of the Middle Jurassic Yan’an Formation (NE Ordos Basin, China), relationship with climate conditions and basin evolution, and coal maceral’s characteristics.doc

open access: yes, 2023
The Yan’an Formation of the Ordos Basin in North China is among the largest and most extensively studied Jurassic coal reservoirs in the world. The lacustrine Yan’an Formation was investigated near Dongsheng (Ordos Basin, China) in its sequence ...
Dongdong Wang (742338)   +9 more
core   +1 more source

Analysis of the Pore Structure of Shale in Ordos Basin by SEM with Nitrogen Gas Adsorption-Desorption

open access: yesYankuang ceshi, 2015
Identification of porosity in shale is of great significance for exploring mechanism of shale gas. Porosity properties of the shale samples from the Ordos Basin were characterized by multiple techniques including Scanning Electron Microscope(SEM ...
CHEN Sheng-rong   +5 more
doaj   +1 more source

Sedimentary Environment and Model for Organic Matter Enrichment: Chang 7 Shale of Late Triassic Yanchang Formation, Southern Margin of Ordos Basin, China

open access: yesEnergies, 2022
Shale oil is an unconventional oil resource that needs to be developed and utilized urgently. However, the Chang 7 shale in the Ordos Basin, as the most typical continental source rock in China, is limited by the study of organic matter (OM) enrichment ...
Yonggang Zhao   +5 more
doaj   +1 more source

Schematic sedimentary model showing the evolution of the Yanchang Formation in the southwestern margin of the Ordos basin.

open access: yes, 2015
Schematic sedimentary model showing the evolution of the Yanchang Formation in the southwestern margin of the Ordos basin.
Fang Shen (495200)   +4 more
core   +1 more source

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