Results 21 to 30 of about 199 (123)

Mine water inflow prediction and effect evaluation based on fused drilling-geophysical data

open access: yesMeikuang Anquan, 2021
This paper takes Dahaize Coal Mine as the typical research object, based on data from 238 geological and hydrogeological boreholes and 50 geophysical cross sections, we analyzed the main factors affecting mine water inflow, recognized and determined the
GAO Ruizhong   +5 more
doaj   +1 more source

Middle Jurassic terrestrial environmental and floral changes linked to volcanism: Evidence from the Qinghai Tibet Plateau, China [PDF]

open access: yes, 2023
The breakup of Pangaea and the rapid opening of the Ligurian and Central Atlantic oceans during the Middle Jurassic resulted in widespread volcanism accompanied by significant shifts in global environments, climates, and floras.
Bian, Xiao   +11 more
core   +2 more sources

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 [PDF]

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 ...
Lv, D   +8 more
core   +1 more source

Roof Water Damage Prediction and Evaluation of Sand‐Mud Sedimentary Tectonic Strata

open access: yesGeofluids, Volume 2023, Issue 1, 2023., 2023
The prediction and control of roof water disaster has been one of the key problems in the mining process of coal resources. With the increase of mining depth in the western mining area, the roof caving and communicating to the overlying water‐bearing strata have led to an increasing number of roof water inrush accidents and deterioration of production ...
Pengfei Jiang   +6 more
wiley   +1 more source

Micropore Throat Structure and Movable Fluid Characteristics of Chang 63 Tight Sandstone in Baibao Area of Ordos Basin

open access: yesGeofluids, Volume 2023, Issue 1, 2023., 2023
Tight sand is an important unconventional reservoir. Aiming at the problem of large unused reserves and the poor development effect of Chang 63 reservoir, this paper researches reunderstanding reservoir and evaluating unused reserves. Employing rock slice and scanning electron microscope (SEM), the experiment of low‐field nuclear magnetic resonance ...
Bobiao Liu   +6 more
wiley   +1 more source

Analysis of Sedimentary Characteristics in Balasu Coal Field of Northern Yuheng Mining Area

open access: yesMeikuang Anquan, 2020
There are abundant coal resources in northern of Yuheng Mining Area of Jurassic coalfield in northern Shaanxi, but the coal mines in this area are generally affected by roof water hazards.
XU Shengji, LIU Yang, FANG Gang
doaj   +1 more source

Hydrogeological feasibility of mine water deep geological storage in Baotashan coarse sandstone: A case study in Ordos Basin

open access: yesDeep Underground Science and Engineering, Volume 1, Issue 2, Page 148-164, December 2022., 2022
We conducted a new approach of mine water‐deep geological storage, the results showed that the hydrogeological feasibility of Baotashan coarse sandstone (BCS) was impressive and useful for real project. The effective porosity of BCS aquifers ranged from 1.36% to 3.46% and the capacity of mine water geological storage was 0.455–1.266 Mm3 for 1 km2 in ...
Ge Chen, Yajun Sun, Zhimin Xu, Xin Li
wiley   +1 more source

Groundwater chemical characteristics and forming reasons of Yuanyanghu Mining Area

open access: yesMeikuang Anquan, 2023
In order to find out the chemical characteristics and causes of groundwater in Yuanyanghu Mining Area, and to provide basis for the prevention and control of water disaster in the mining area, the aquifer hydro-chemistry of Quaternary, Cretaceous, Zhiluo
ZONG Weiqin, ZHAO Baofeng
doaj   +1 more source

[Retracted] Characteristics of Sedimentary Microfacies of Late Triassic Yanchang Formation in North‐Central Ordos Basin

open access: yesJournal of Chemistry, Volume 2022, Issue 1, 2022., 2022
Sedimentary microfacies refer to the smallest unit with unique rock structure, structure, thickness, rhythm, and other sedimentary characteristics and certain plane configuration rules in the subfacies zone. Sedimentary microfacies research is the most basic sedimentary unit formed in the same or basically the same sedimentary background.
Jiangwei Wei   +6 more
wiley   +1 more source

Timing of uplift and evolution of the Lüliang Mountains, North China Craton [PDF]

open access: yes, 2016
This study analyses evidence for reformed basin development and basin-mountain coupling associated with development of the Ordos Basin and the Lüliang Mountains, China. Gaining an improved understanding of the timing and nature of uplift and evolution of
A J Hurford   +57 more
core   +1 more source

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