2020 Vol. 26, No. 2

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2020, 26(2): .
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2020, 26(2): .
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Progress on strike-slip fault research and its significance
XIAO Kunze, TONG Hengmao
2020, 26(2): 151-166. doi: 10.12090/j.issn.1006-6616.2020.26.02.015
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Since the emergence of the strike-slip fault concept, the importance of strike-slip fault in geological science research has gradually been realized. Understandings of strike-slip faults in terms of geometry, kinematics, dynamics and tectonic significance have accelerated the study on strike-slip fa...
Integrated determination of principal stress and tensile strength of rock based on the laboratory and field hydraulic fracturing tests
WANG Chenghu, GAO Guiyun, WANG Hong, WANG Pu
2020, 26(2): 167-174. doi: 10.12090/j.issn.1006-6616.2020.26.02.016
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The compliance of the drilling-rod hydraulic fracturing in-situ stress measurement can affect the determination accuracy of the maximum horizontal principal stress. Utilizing tensile strengths based on the hollow cylinder hydraulic fracturing test to replace reopening pressures to calculate maximum ...
Research progress of interaction of fluid with rock in the ductile shear zone
LIU Gui
2020, 26(2): 175-186. doi: 10.12090/j.issn.1006-6616.2020.26.02.017
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The jointly controlling mechanism of tectonic deformation process and fluid mineralization is one of the hot issues of mineral deposits. As a strain localization zone in the continental lithosphere, a large amount of fluid is generally permeated in the shear zone. In the ductile shear zone, the inte...
Research on the genetic model and exploration progress of hot dry rock resources on the southeast coast of China
LI Tingxin, LIN Wenjing, GAN Haonan, YUE Gaofan, ZHANG Delong, WANG Guiling
2020, 26(2): 187-200. doi: 10.12090/j.issn.1006-6616.2020.26.02.018
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Hot dry rock (HDR) is an important geothermal resource, whose exploitation mostly centers on the heat contained in the intermediate-acid intrusive rock mass of the crust since the Mesozoic. The southeast coast is the main distribution area of highly radioactive granites in China, with a large area o...
Advances in quantitative characterization of shale pore structure by using fluid injection methods
YU Yuxi, WANG Zongxiu, ZHANG Kaixun, CHENG Ming
2020, 26(2): 201-210. doi: 10.12090/j.issn.1006-6616.2020.26.02.019
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Shale is compact and has complex structure, which makes it hard to characterize its pore structure quantitatively; however, the pore structure of shale can provide important information for shale reservoir evaluation and sweet spot determination. The fluid injection methods, represented by the gas a...
Research on the status quo of environmental geology impact of enhanced geothermal system and countermeasures
GAN Haonan, WANG Guiling, LIN Wenjing, ZHANG Wei, QIN Xianghui, ZHANG Chongyuan
2020, 26(2): 211-220. doi: 10.12090/j.issn.1006-6616.2020.26.02.020
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Enhanced geothermal system (EGS) is the hotspot of geothermal resource development and utilization. Its power generation is almost impervious to the external environment and it cause little pollution and damage to the environment. In recent years, it has been found that in the process of EGS develop...
Study on influence of construction precipitation on surface settlement and stratum stress on the ground fissure site
WANG Qingbing, HUANG Qiangbing, YAN Yufeng, YANG Zhao, HU Shiwei, LEI Jian
2020, 26(2): 221-231. doi: 10.12090/j.issn.1006-6616.2020.26.02.021
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Ground fissure is a typical urban geological disaster in Xi'an city, and the change of groundwater level is an important factor in inducing ground fissure activity. Taking construction precipitation in underground excavation section of Xi'an Metro Line 6 as the engineering background, based on the f...
Pan-lake during the late Pleistocene in the source area of the Yellow River and its significance
HAN Jian'en, LUO Peng, YU Jia, SHAO Zhaogang, MENG Qingwei, WANG Jin, ZHU Dagang
2020, 26(2): 232-243. doi: 10.12090/j.issn.1006-6616.2020.26.02.022
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According to the sedimentary characteristics and the results of ESR dating of the lacustrine strata profile in Maduo County, Qinghai Province, the pan-lake event had occurred in the source area of the Yellow River during the late Pleistocene period at about 130 kaB.P.. During the pan-lake period, th...
Paleoclimatic and paleoenvironmental evolution recorded by the aeolian sand-paleosol sequence in the Zoigê basin
QI Lin, WANG Yan, CAI Yao, QIAO Yansong, YAO Haitao, YANG Shuaibin, BAI Wenbin
2020, 26(2): 244-251. doi: 10.12090/j.issn.1006-6616.2020.26.02.023
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The aeolian sand-paleosol sequence in the Zoigê basin is a sensitive record of paleoclimate change and paleoenvironmental evolution for the northeastern region in the Tibet Plateau. A typical aeolian sand-paleosol section, called Xiaman, was tested for its AMS C age, grain size, magnetic susceptibil...
Study on the river network, geomorphological features and tectonic activity in the Danjiangkou reservoir and its surrounding areas
WEN Li, WEI Pengfei, LI Xuemin, SUN Xiaozhou, WANG Lixuan
2020, 26(2): 252-262. doi: 10.12090/j.issn.1006-6616.2020.26.02.024
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Owing to its sensitiveness to tectonics and climate, river records the relevant information about river system evolution, structural deformation and climate change. It is a breakthrough point in structural geomorphology research to elaborate on regional geomorphology and tectonic activities by study...
Information construction method of geological survey projects based on digital mapping technology
YANG Xingchen, YE Mengni, YE Peisheng, CAI Maotang, LOU Yuxing, ZHANG Xujiao, LIU Hao
2020, 26(2): 263-270. doi: 10.12090/j.issn.1006-6616.2020.26.02.025
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The informatization construction of geological survey project is one of the supporting systems to realize the effective service of geological survey to the national ecological civilization construction. Digital mapping technology is the key technology in the informationization construction of geolog...
Permian very low-grade metamorphism and its potential for hydrocarbon generation in the Linxi-Wulanhaote Area, Inner Mongolia, China
LI Changhai, LI Gang, WANG Shijie, SHAO Xuefeng, WANG Ying, WEN Kai, LIU Zhenghong
2020, 26(2): 271-284. doi: 10.12090/j.issn.1006-6616.2020.26.02.026
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The very low-grade metamorphism has been the focus of research in recent years and has great significance for the study of structural evolution of young orogenic belt and petroleum exploration. The recent studies revealed that the Carboniferous Permian strata in the northeastern part of China mainly...

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