Results 41 to 50 of about 521 (176)

Optimal allocation of brackish groundwater in arid inland area: A case study

Guan'gai paishui xuebao
【Objective】Groundwater is a vital resource for agricultural irrigation in arid regions, but excessive exploitation has led to over-mineralization, making water unsuitable for direct use.
JIA Yifan, GE Yanyan, LI Sheng, JIE Feilong   +3 more
doaj   +1 more source

COMPARISON OF DEEP CRUSTAL COMPOSITIONS BETWEEN THE QINLING-DABIE OROGEN (CHINA) AND CENTRAL ASIAN OROGENIC BELT AND IMPLICATIONS FOR UNDERSTANDING ACCRETIONARY AND COLLISIONAL OROGENIC PROCESSES

Геодинамика и тектонофизика, 2017
It is generally considered that there are different continental compositions between a subductional– collisional and an accretionary orogen, however, what are the differences and how to identify them has not been well understood.
X. X. Wang, T. Wang, C. H. Ke, H. Huang, Y. Tong, Y. Yang, D. W. Hong   +6 more
doaj   +1 more source

Geodynamic Environments of the Origin of Poly- and Monometamorphic Complexes in the Southern Altai Metamorphic Belt, Central Asian Orogenic Belt [PDF]

Petrology, 2019
Tectonic sheets of various size along the southern slope of the Mongolian and Chinese Altai ranges and in eastern Kazakhstan include high-grade metamorphic rocks, which are collectively referred to as the Southern Altai Metamorphic Belt. Rocks of the sheets show traces of amphibolite-facies elevated-pressure metamorphism of the kyanite–sillimanite type 
I. K. Kozakov, A. M. Kozlovsky, V. V. Yarmolyuk, T. I. Kirnozova, M. M. Fugzan, Ts Oyunchimeg, Ch. Erdenezhargal   +6 more
openaire   +1 more source

Early–Late Carboniferous Tectonic Evolution of the Northern North China Craton (NE China): Constraints From Zircon Ages, Geochemistry, and Crustal Thickness Modeling

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The tectonic evolution of the northern margin of the North China Craton (NCC) remains controversial. In this study, we obtained zircon U–Pb ages, geochemical data, and Sr–Nd isotopic data for volcanic rocks, and detrital zircon ages for sedimentary rocks from the Yufutun, Tongqigou, and Benxi formations in central‐southern Jilin Province, NE ...
Yunfei Chang, Qingxiang Du, Huachun Gan, Xiaoli Shen, Zuozhen Han, Xiaoxue Hou, Huicong Zhang   +6 more
wiley   +1 more source

Underground Coal Gasification Induced Multi-Physical Field Evolution and Overlying Strata Fracture Propagation: A Case Study Targeting Deep Steeply Inclined Coal Seams

Energies
Underground coal gasification (UCG) is a controlled combustion process of in situ coal that produces combustible gases through thermal and chemical reactions.
Jing Li, Shuguang Yang, Ziqiang Wang, Bin Zhang, Xin Li, Shuxun Sang   +5 more
doaj   +1 more source

Crustal Thickness Inversion From Magmatic Geochemistry Reveals Spatiotemporal Evolution and Two‐Stage Uplift of the Iranian Plateau

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The Cenozoic topographic growth of the Iranian Plateau, situated at the Arabia‐Eurasia collision front, provides insights into continental collision dynamics. However, the relative contributions of tectonic shortening versus deep mantle processes to crustal thickening remain debated because systematic quantitative constraints on paleo‐crustal ...
Jun Hu, Yongwei Zhao, Zhengquan Chen, Ni Li, Huan Kang   +4 more
wiley   +1 more source

Hydrogeochemical characteristics and significance of produced water from coalbed methane wells in Fukang Mining Area

Meikuang Anquan
In order to explore the hydrogeochemical characteristics of coal seam water produced in Fukang Mining Area, the recharge relationship between stagnant aquifer and coal seam water in the fire area and the water chemical evolution model, this study ...
Donglei JIA, Haichao WANG, Jijun TIAN, Daping XIA, Bo WANG, Qingcheng GONG   +5 more
doaj   +1 more source

GEOCHEMISTRY AND ORIGIN OF THE EASTERN SAYAN OPHIOLITES, TUVA-MONGOLIAN MICROCONTINENT (SOUTHERN SIBERIA)

Геодинамика и тектонофизика, 2017
The Eastern Sayan ophiolites (1020 Ma) of the Tuva-Mongolian microcontinent are believed to be the most ancient ophiolite of the Central Asian Orogenic Belt [Khain et al., 2002].
V. A. Belyaev, K.-L. Wang, M. A. Gornova, S. I. Dril’, A. A. Karimov, A. Ya. Medvedev, Yu. V. Noskova   +6 more
doaj   +1 more source

The Oldest Known Eocene Loess in the Western United States: Evidence From a Fluvial‐Eolian Transition Zone

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract The timing, stratigraphic development, and mechanisms of late Paleogene loess deposition remain poorly understood, yet they are critical to understanding how tectonics, fluvial reworking, and eolian transport interacted during a key interval of western North American landscape evolution.
Shankhadeep Baul, Majie Fan
wiley   +1 more source

Dynamic evolution of rock mechanical properties of coal seam roofs under thermal loading: A case study of the Baikouquan area, Xinjiang, China

Meitian dizhi yu kantan
ObjectiveUnderground coal gasification (UCG) represents a key technology for the clean utilization of coal resources. However, during the UCG process, thermal damage to surrounding rocks under thermal effects directly affects the stability and ...
Fangfang SUN, Xin LI, Shuxun SANG, Huailin QU, Shuguang YANG, Bo WEI, Ziqiang WANG, Bin ZHANG, Yanpeng CHEN, Wenling TIAN   +9 more
doaj   +1 more source