Results 151 to 160 of about 3,986,383 (173)
Some of the next articles are maybe not open access.

A new and diverse plant fossil assemblage from the upper Westphalian Benxi Formation, Shanxi, China, and its palaeofloristic significance

Geological Magazine, 2002
A diverse assemblage of Carboniferous plant fossils occurs in the upper Benxi Formation at the Kaihuagou Section near Taiyuan, Shanxi, China. It consists of impressions and fusain fragments, the latter revealing anatomical details. Unlike previously published assemblages from the Benxi Formation, there are no pteridosperms, but a predominance of ...
CHRISTOPHER J. CLEAL, WANG ZIQIANG
openaire   +1 more source

Mechanical behavior of Benxi Formation limestone under triaxial compression: a new post-peak constitutive model and experimental validation

Bulletin of Engineering Geology and the Environment, 2017
In order to understand the mechanical behavior of limestone and to formulate a new post-peak constitutive model, triaxial tests on the intact Benxi Formation limestone from Gequan mine, Hebei Province, China, were conducted using the Electro-hydraulic Servo-controlled Rock Mechanics Testing System (MTS815).
Defeng Liu   +4 more
openaire   +1 more source

Genesis of efficient reservoirs in mixed sedimentary setting: a case study of Benxi Formation in the Gaoqiao area, Ordos Basin

Turkish Journal of Earth Sciences
The Benxi-Taiyuan Formation in the southern region of the Ordos Basin represents a typical mixed sedimentary system, which has witnessed recent breakthroughs in the exploration of tight sandstone gas within the Benxi Formation. However, the development patterns of reservoirs in this mixed sedimentary area remain unclear, influenced by the sedimentary ...
SHU LIU   +8 more
openaire   +1 more source

Meso- and Neoarchean Banded Iron Formations and Genesis of High-Grade Magnetite Ores in the Anshan-Benxi Area, North China Craton

Economic Geology, 2017
AbstractThe Anshan-Benxi area in the North China craton has numerous occurrences of Algoma-type banded iron formations (BIFs) with subordinate high-grade magnetite ores. These ores provide insight into iron metallogenesis and early evolution of the North China craton.
Yanpei Dai   +3 more
openaire   +1 more source

Deep coal-rock geomechanics for wellbore stability and drilling-fluid design in the Benxi–Shanxi Formations, Ordos Basin, China

Applied Earth Science: Transactions of the Institutions of Mining and Metallurgy
Deep coal-rock intervals in the Ordos Basin host substantial unconventional gas resources but commonly pose severe drilling risks due to poor borehole integrity. This study integrates regional geological characterisation with engineering observations to characterise the geological and geomechanical attributes of deep coal-rocks from the Benxi–Shanxi ...
Hongxiang Jin   +6 more
openaire   +1 more source

Reservoir Characteristics and Gas Occurrence Patterns of Deep Coalbed Methane in the Benxi Formation, Eastern Margin of the Ordos Basin

Since 2017, China has actively promoted the exploration of deep coal seams as unconventional natural gas reservoirs. However, the petrographic composition, pore–fracture structure, and gas occurrence characteristics of deep coal reservoirs remain poorly constrained, particularly under in-situ formation depth conditions.
Yuxing Zeng, Yanzhong Wang
openaire   +1 more source

New Discovery of Molar Tooth Structures in the Kangjia Formation at Benxi, Liaoning and its Significance

Acta Geologica Sinica - English Edition, 2017
Hao WU   +3 more
openaire   +1 more source

Geological characteristics and gas accumulation condition of deep coal-rock gas in Carboniferous Benxi Formation, Western Ordos Basin, China

Applied Earth Science: Transactions of the Institutions of Mining and Metallurgy
Previous studies on the coal-rock gas accumulation has largely emphasised geological characterisation and controlling condition of coal-bed buried below 2000 m, leaving a gap in understanding how gas accumulate in deep coal-rock (>2000 m).
Hongxiang Jin   +5 more
openaire   +1 more source

Home - About - Disclaimer - Privacy