2015 Vol. 21, No. 3

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NEW GENERATION 1:5000000 MAP OF REGION STABILITY EVALUATION IN CHINA
DU Jian-jun, MA Yin-sheng, TAN Cheng-xuan, CHEN Qun-ce, SHI Wei
2015, 21(3): 309-317.
Abstract (215) HTML (91) PDF (11906KB)(40)
Abstract:
Based on the latest research results of neotectonic movements and geological hazards, a new 1:5000000 map of region stability evaluation in China is compiled which uses the theory of modern tectonic movement to evaluate region stability in the comprehensive analysis of basic laws of China's neotecto...
DIFFERENCE IN FAULT DEVELOPMENT AND ITS CONTROLLING ON OIL AND GAS ACCUMULATION IN MAICHEN SAG, BEIBUWAN BASIN
HU Ai-yu, CHEN Wei, YU Wen-quan, TONG Heng-mao
2015, 21(3): 318-329.
Abstract (176) HTML (113) PDF (26233KB)(25)
Abstract:
Using the seismic and drilling data, the development, evolution and origin of the fault system in the east of Maichen Sag were analyzed, and the influence of fault on oil and gas accumulation were discussed in this paper. The results show that the fault combinations and activity characteristics have...
DISCUSSION ON THE FRACTURE OF LAYERED ROCK MASS BASED ON THE FINITE ELEMENT METHOD
XU Ke, DAI Jun-sheng, FU Xiao-long, REN Qi-qiang, LIU Cong-ning, ZHAO Yun
2015, 21(3): 330-340.
Abstract (189) HTML (84) PDF (9600KB)(14)
Abstract:
The failure mode and laws of layered rock mass are unique because of its heterogeneity and anisotropy. By conducting uniaxial, biaxial and three axis compression experiments on layered rock mass and analyzing their stress strain curves, different characteristics have been shown. And then with the so...
THE MULTI-PARAMETER QUANTITATIVE PREDICTION OF RESERVOIR FRACTURE OF FU-2 MEMBER IN TIAN 96 FAULT BLOCK OF JINHU SAG
ZHOU Ju-biao, SHI Xian-da, DING Yu-sheng, KAN Yan-kun, SHI Xin-yue
2015, 21(3): 341-350.
Abstract (277) HTML (85) PDF (6251KB)(15)
Abstract:
Based on the theory of strain energy and surface energy, the relationship between the fracture parameters and the ancient and present earth stresses at the fracture forming period in Tian 96 fault block of Jinhu sag was established by using Griffith rock-cracking principle. The type and direction of...
2015 NEPAL EARTHQUAKE AND THE FUTURE SEISMIC TREND OF HIMALAYA OROGENIC BELT
ZHAO Gen-mo, LIU Jie, WU Zhong-hai
2015, 21(3): 351-358.
Abstract (211) HTML (139) PDF (11688KB)(21)
Abstract:
This paper briefly introduces the parameters of the M 8.1 earthquake on April 25, 2015, which is a low angle thrust fault movement in the middle of the Himalaya orogenic belt. The characteristics is that the source is very shallow, the intensity of the earthquake reaches to Ⅺ degree and the earthqua...
A PROBLEM AND EXPLANATION FOR BOREHOLE STRAIN METER RECORDS OF CO-SEISMIC STRAIN STEPS
DONG Pei-yu, REN Tian-xiang, YANG Shao-hua, PANG Ya-jin, SHI Yao-lin
2015, 21(3): 359-370.
Abstract (275) HTML (101) PDF (8970KB)(12)
Abstract:
Observation data from 4-compnoent borehole strain meters can be self-checked by ΔεⅠ+ΔεⅢ=ΔεⅡ+ΔεⅣ. However, when strain meters record the co-seismic strain steps, the ΔεⅠ+ΔεⅢ is not often equal to the ΔεⅡ+ΔεⅣ, and observed values are greater than the theory solution. In this paper, the possible reason...
STUDY ON PERMAFROST OF QILIAN MOUNTAINS BASED ON GIS SPATIAL ANALYSIS MODEL
FU Lian-zhen, HU Dao-gong, ZHANG Xu-jiao, YOU Bao-jie, WU Ze-qun, YE Meng-ni
2015, 21(3): 371-377.
Abstract (171) HTML (92) PDF (18966KB)(13)
Abstract:
Based on those empirical formulas of temperature, permafrost thickness, latitude, longitude and altitude in Qilian Mountains and Tibet Plateau, the distribution characteristics of mean annual temperature, mean annual ground temperature and the thickness of permafrost in Qilian Mountains are obtained...
EXPERIMENTAL STUDY ON ANISOTROPIC CHARACTERISTICS OF UNDISTURBED Q3 LOESS FROM DINGXI, GANSU
XU Shan-chang, LIANG Qing-guo, LI Shuai-shuai, ZHANG Tang-jie, ZHANG Rong
2015, 21(3): 378-385.
Abstract (176) HTML (67) PDF (4255KB)(8)
Abstract:
Through the triaxial test in the laboratory, the anisotropy effect of Q3 loess from Dingxi, Gansu on the shear strength and deformation parameters was studied. The results show that the anisotropy of undisturbed Q3 loess has obvious influence on its mechanical properties. The shear strength in verti...
EXPERIMENTAL STUDY ON TENSILE STRENGTH OF UNDISTUBED Q2 LOESS FROM YANAN SHANNXI, CHINA
SUN Wei-yu, Liang Qing-guo, YAN Song-hong, OU Er⁃feng, SHAO Sen-lin
2015, 21(3): 386-392.
Abstract (197) HTML (130) PDF (5177KB)(8)
Abstract:
The unconfined compressive and penetration tensile tests were conducted with different loading rates on undisturbed Q2 loess from Baotashan Tunnel in Yan'an, Shanxi, and the impacts on the unconfined compressive strength and tensile strength were studied. It shows that the loading rates have a great...
STUDY ON THE GUANZHUANGYU LOESS STRATIGRAPHY IN MANGSHAN, ZHENGZHOU
WANG Yu-zhen, WANG Shu-bing, WANG Xi-sheng, FU Jian-li, JIANG Fu-chu
2015, 21(3): 393-398.
Abstract (291) HTML (97) PDF (1291KB)(12)
Abstract:
The thickness of the Guanzhuangyu section in Mangshan is 154.9 m, with the loess-paleosol sequence of S10 and above exposed. The typical malan loess there is coarse grained and uniform with the layer thickness up to 70.125 m, and there is no obvious weakly developed paleosol layer in the middle of t...
GEOLOGICAL STRUCTURE CHARACTERISTICS OF THE NORTHERN SEGMENT OF XUEFENG OROGEN: A CASE STUDY OF THE CILI-ANHUAN CORRIDOR
BAI Dao-yuan, ZHONG Xiang, JIA Peng-yuan, WANG Xian-hui, PENG Yun-yi
2015, 21(3): 399-414.
Abstract (228) HTML (197) PDF (13651KB)(26)
Abstract:
Cili-Anhuan corridor was taken as examples for studying the geological structure characteristics of the western part of the northern Xuefeng orogen. It is shown that the northern segment of Xuefeng orogen is composed of the northern Wuling fault-bend fold belt and the southern Xuefeng basement detac...
TECTONIC DEVELOPMENT AND ORE-CONTROLING CHARACTERISTICS OF XIAOQINLING GOLD FIELD
ZHANG Kai, REN Hong-wei, GUO Gang, TENG Fei, WANG Chen
2015, 21(3): 415-425.
Abstract (322) HTML (242) PDF (36536KB)(57)
Abstract:
Through analyzing the collected geological data of xiaoqinling gold field, the different levels of exploration engineering on typical ore deposits were studied systematically and the ore-controlling tectonic characteristics of the mine field were discussed. The research shows that under the control ...
BLUESCHIST BELT IN CHINA AND ITS TECTONIC SIGNIFICANCE
ZENG Pu-sheng, MA Jing, GOU Rui-tao, WANG Ju-jie
2015, 21(3): 426-437.
Abstract (315) HTML (150) PDF (3545KB)(33)
Abstract:
On the basis of previous studies, the blueschist belt in China can be divided into 20 parts according to the metamorphic age and original place. This paper selects some typical blueschist belts of different times to discuss their characteristics (such as distribution area, gross scale, the features ...
LARGE-SCALE E-W THRUST NAPPES IN JIANCHUAN-HUTIAOXIA AREA, NW YUNNAN, CHINA: A DISCUSSION ON THE BOUNDARY OF THE YANGTZE CRATON AND TIBET-SANJIANG OROGENIC SYSTEM
SHA Shao-li, ZENG Pu-sheng, GOU Rui-tao, DAI Yan-juan, ZHANG Zi-xiong
2015, 21(3): 438-445.
Abstract (393) HTML (243) PDF (2247KB)(31)
Abstract:
Based on the regional geological survey, the characteristics of the faults in Jianchuan-Hutiaoxia area and the boundary of the Yangtze Craton and Tibet-Sanjiang Orogenic System were discussed. The results show that there exist EW trending large-scale thrust nappe structures in this region. Through t...
EVALUATION OF THE HYDROCARBON GENERATION POTENTIAL OF SOURCE ROCKS OF THE JURASSIC YAOJIE FORMATION IN MULI DEPRESSION OF QILIAN MOUNTAINS
XU Jiu-sheng, WEN Zhi-gang, HU Dao-gong, ZHANG Yao-ling, QI Bang-shen
2015, 21(3): 446-452.
Abstract (251) HTML (142) PDF (3292KB)(40)
Abstract:
The research results of the abundance, types and maturity of the organic matter of mudstone and coal seam of Yaojie coal-bearing formation in Muri depression of Qilian Mountains show that the mudstone of Yaojie coal-bearing formation is good hydrocarbon source rock and the organic matter type is sap...

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