1997 Vol. 3, No. 3

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1997, 3(3): 1-3,11.
Abstract (101) PDF (156KB)(8)
Abstract:
ANALYSIS OF THE JIASHI,XINGJIANG,EARTHQUAKE AND THE RELATED TECTONIC ACTIVITY
Wu Zhenhan, Wu Ganguo, Sun Baoshan
1997, 3(3): 4-11.
Abstract (167) PDF (333KB)(8)
Abstract:
A major shock of M=6.9 followed by a swarm of strong after-shocks of magnitude between 6 and 7 occurred in the west of Jiashi County of the Xinjiang Uygur Autonomous Region from March 1996 through April of 1997 at the west margin of the Tarim Basin. And historical strong earthquakes had been located...
GLOBAL STRESS FIELD CAUSED BY THE CHANGE OF RATE OF THE EARTH'S ROTATION
Wang Lianjie, Zhang Lirong, Wang Wei, Yuan Jiayin
1997, 3(3): 12-20.
Abstract (153) PDF (376KB)(11)
Abstract:
In this paper,a global stress field caused by the change of rate of the earth's rotation is calculated using finite element method.The principal stress resulting from the change of centrifugal inertial force is South-North and East-West oriented,and the magnitude of the stress may reach to tens to s...
ELASTIC MECHANICS APPROACH OF HELANSHAN NNE TRENDING REVERSED S-SHAPED STRUCTURE
Li Tianbin
1997, 3(3): 21-28.
Abstract (176) PDF (312KB)(7)
Abstract:
The reversed "S"-shaped structure consists of series of NNE-trending folds and faults,which are mutually parallel and en echelon arranged.The component structures are mostly expressed as compress-shear elements,with sinistral motion predominated.They were only qualitatively described previously.This...
COAL CREEP AND GROUND SUBSIDENCE OF FENGFENG COAL MINEⅡ
Wu Lixin, Wang Jinzhuang, Meng Shunli
1997, 3(3): 29-35.
Abstract (171) PDF (277KB)(11)
Abstract:
Creep experiments of coal under uniaxial load show a low creep factor (Z=e1/ec) and a high threshold stress (eth).The samples are taken from the Fengfeng coal field in Hebei Province.Creep parameter sets determined at different stress levels were presented.Calculations of ground subsidence due to un...
THE INFLUENCE AND CONTROL OF SHEARING ON THE DEVELOPMENT OF THE OPTICAL ANISOTROPY OF ORGANIC MATTER
Zhong Jianhua
1997, 3(3): 36-40.
Abstract (143) PDF (208KB)(10)
Abstract:
Not far from western Baisha town of Luyan county in western Hunan, there is a shallow oil-bearing brittle-ductile shear zone, in which the organic matter has striking optical anistrophy, with Ro,min values ranging from 0.34% to 0.81%, Ro,med values from 1.01% to 1.84%, and Ro,max values from 2.52% t...
QUANTITATIVE ASSESSMENT AND ZONATION OF REGIONAL CRUSTAL STABILITY IN CHINA
Sun Ye, Tan Chengxuan, Yang Guisheng, Wang Ruijiang
1997, 3(3): 41-52.
Abstract (327) PDF (438KB)(22)
Abstract:
China, as is located at the intersection of the circum-Pacific tectonic zone and the Mediterranean tectonic zone, has relatively strong active geological structures associated with various endogenic geological hazards. In this case it seems necessary to achieve a quantitative assessment and zonation...
ON VERTICAL TRANSFORM FAULT IN CONTINENTAL LITHOSPHERE
Bai Wenji, Yang Jingsui, Re Yufeng
1997, 3(3): 53-58.
Abstract (462) PDF (256KB)(11)
Abstract:
In recent years,a new type of fault that cuts nearly vertically through the entire crust into the mantle is known from geophysical investigations and is named vertical transform fault by the authors.At first,they were recognized only in the lithosphere of High Asia including Tibetan Plateau,and subs...
GEOLOGICAL CHARACTERISTICS OF THE STRATA-BOUND GOLD DEPOSITS IN MID-XUEFENGSHAN MOUNTAIN AND ORE -CONTROLLING MECHANISM
Liu Xiangqin, Meng Xiangang, Zhao Jianguang, Xiao Zhusong
1997, 3(3): 59-67.
Abstract (321) PDF (382KB)(8)
Abstract:
In the middle part of the Xuefengshan mountain exist many types of gold deposits,of which a new type-a strata bound gold deposits often widespread and of high grade has been recently discovered.The gold deposit is closely associated with the feldspathic quartz gray-wacke of the Zhuanqiangwan Formati...
A DISCUSSION ON IDENTIFICATION OF MECHANICAL PROPERTIES OF THE ORE CONTROLLING FAULTS
Zhang Shouting, Li Zhongquan
1997, 3(3): 68-73.
Abstract (178) PDF (241KB)(13)
Abstract:
In nature,the most of ore-controlling faults have experienced repeated movement.Identification of their activity and mechanical properties especially during mineralization,is the key to revealing the tectonic stress field and the structures leading to the control of the ores.This paper has a prelimi...
ANALYSIS OF MICROSTRUCTURES AND SUPERIMPOSED DEFORMATION IN YISHU FAULT BELT
Hu Ling, Gu Delin
1997, 3(3): 74-79.
Abstract (179) PDF (267KB)(8)
Abstract:
This paper describes the microscopic structural features and superimposed deformation of the Yishu fault belt.The results show that the belt has experienced five active periods of structural deformation.
TECTONIC EVOLUTION OF THE SEDIMENTARY BASINS IN WESTERN LIAONING PROVINCE AND THEIR GENESIS TYPE
Wang Weifeng, Lu Shikuo, Sun Yueping
1997, 3(3): 80-89.
Abstract (393) PDF (406KB)(14)
Abstract:
There are several small Mesozoic coal basins in western Liaoning province.Those basins are also petroleum basins.This paper is a research report of the formation and evolution of the basins.Firstly,geodynamic background of western Liaoning province is studied.Secondly,structural geometry and kinemat...
A NEW HYPOTHESIS ON THE DEFORMATION LAW IN THE TECTONOSPHERE——AS A RESULT OF THE CHANGE OF INCLINATION THE EARTH'S AXIS
Tyapkin K F
1997, 3(3): 90-96.
Abstract (233) PDF (313KB)(7)
Abstract:
A new hypothesis on the formation of structures in the tectonosphere effected by the change of the inclination of Earth's axis and some research results are introduced in this paper.The block systems of tectonosphere and succeeding fault activity are discussed.

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