1997 Vol. 3, No. 1

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THE EPSILON-TYPE STRUCTURAL SYSTEM OF SOUTH CHINA
Zhao Jianwei, Wang Zhishun, Zhu Dagang
1997, 3(1): 1-9.
Abstract (312) PDF (370KB)(10)
Abstract:
The frontal arc of the epsilon-type structural system of South China is distributed on the continental margin of South China and Northern Vietnam,the apex of which reaching as far southwards as the northern side of the Xisha Islands latitudinal structural system.The west reflex arc appears at the Ni...
TECTONO-MINEROGENIC CYCLES AND MINEROGENETIC EVOLUTION THROUGH GEOLOGICAL HISTORY IN THE QINLING OROGENIC BELT
Wang Pingan, Chen Yuchuan
1997, 3(1): 10-20.
Abstract (312) PDF (402KB)(24)
Abstract:
It has been disputed for a long time whether tectonic and minerogenic cycles did ever exist through geological history.On the basis of the theory and method of the minerogenic series of ore deposits,the authors advanced and discussed a concept of "tetono-minerogenic cycle".Cyclicity of tectono-miner...
ON THE FORMATION AND SPLITTING OF GONDWANALAND
Qian Weihong
1997, 3(1): 21-29.
Abstract (650) PDF (361KB)(27)
Abstract:
The formation and splitting of Gondwana land is still open to discussion.First,in this paper the Earth is considered to have involved the astronomical evolution and geological evolution.During the period of the astronomical evolution the Gondwana land formed at the south pole and high latitude areas...
TECTONIC EVOLUTION AND THE GOLD DISTRIBUTION IN EASTERN HEBEI
Zhao Yinzhen, Jiang Xirong
1997, 3(1): 30-37.
Abstract (280) PDF (369KB)(15)
Abstract:
After a study of the structural features and their genetic relations in Eastern Hebei,the authors establish the structural systems of the region.A discussion of the tectonic evolution and their relation with mineralization is made on the basis of the determination of the age of the tectonic movement...
TRANSFORMATION FROM DUCTILE SHEAR ZONES TO SHEAR FRACTURE AND RELATED LITHO METALLOGENESIS
Wang Yiqiang, Sun Fengyue, Lü Guxian
1997, 3(1): 38-44.
Abstract (162) PDF (308KB)(14)
Abstract:
It has been known from rock deformation experiments that,under moderate load,creep may finally develop into fractures in rocks.In laboratory experiment of rocks with 3 different axial stresses shear fractures have been found within the very tiny ductile shear zones.It is realized that myloinites are...
A PRELIMINARY STUDY ON RHEOLOGICAL BEHAVIOR OF ROCKS IN XISHAN,BEIJING BY USE OF BOUDINAGE
Zeng Zuoxun, Fu Yongtao, Li Yanxia
1997, 3(1): 45-49.
Abstract (269) PDF (217KB)(9)
Abstract:
Both mechanical analysis and simulating experiment of boudinage indicates its non-Newtonian fluid behaviour.This paper attempts a quantitative evaluation of the rheolegical parameters of rocks from a study of the boudinage structures in Xishan,Beijing.The authors obtain a stress exponent between 3.0...
STUDY ON THE MAGNETIC STRATIGRAPHY OF THE QIANGTANG FORMATION AND THE NEOTECTONISM
Qian Fang, Zhang Jingqing
1997, 3(1): 50-56.
Abstract (268) PDF (295KB)(11)
Abstract:
The Qiangtang Formation,at the pass of the Kunluns,596m in thichness,having a magnetic stratigraphy age of about 2.90-0.65Ma B.P.,is overlain unconformably by the morianes of the Wangkun Glacial stage about 0.65-0.60Ma B.P.and underlain by the out wash gravel of the Jingxian Glacial Stage about 3.00...
MICROMORPHOLOGY OF EXPERIMENTAL ROCK CRACKS
Zhu Dagang
1997, 3(1): 57-62.
Abstract (215) PDF (235KB)(9)
Abstract:
Short duration compression,extension and bending experiments of limestone and sandstone cylinders were made in the laboratory.The tensile microcracks produced by extension are closely spaced,leaving zigzag trails at an angle of less than 90 degrees to the extension uniaxial compression produced domi...
THE FLINN DIAGRAM OF ANISOMETRIC GRAINS
Xu Xingwang, Ma Tianlin, Sun Liqian, Shang Ling
1997, 3(1): 63-70.
Abstract (237) PDF (306KB)(11)
Abstract:
The Flinn diagram of an isometric grains are divided by lines a=1, b=1,and a=b,and curves a2b=1 and ab2=1 into ten subregions,corresponding to ten different combinations of ex,ey,ez,and strain types.The lines and curves represent the special combination of ex,ey,ez, and strain types.There are altoge...
AN APPROACH TO NUMERICAL SIMULATION OF 3-D TECTONIC STRESS FIELD OF THE OIL-GAS-BEARING BASIN
Tan Chengxuan, Wang Lianjie, Sun Baoshan, Hu Daogong, Xu Shouli
1997, 3(1): 71-80.
Abstract (307) PDF (398KB)(24)
Abstract:
In this paper,a numerical simulation of the present 3-D tectonic stress field of the Zhangqiang Depression is made using Super SAP finite element program,the technology and methodology here developed can be applied to other petroliferous basins.A knowledge of the existing stress state of an oil basi...
FRACTAL CHARACTERISTICS OF FAULT SYSTEMS AND ITS RELATION TO OIL-GAS TRAPS IN KERKANG OIL FIELD OF LIAOHE BASIN
Zhou Xingui, Sun Baoshan, Liu Jinghong
1997, 3(1): 81-87.
Abstract (491) PDF (297KB)(10)
Abstract:
Geometric characteristics of the fault system as indicated by the three seismic reflection layers T1,T1,T1 are studied by using fractal theory in Kerkang oil filed of Zhangqiang depression.As a result,the authors find that these fault systems are statistically self-similar within the scale range stu...
A STUDY ON THE RELATIONSHIP BETWEEN ROCK STRESS AND OUTBURSTS OF COAL AND GAS
Wang Xihai
1997, 3(1): 88-94.
Abstract (383) PDF (266KB)(10)
Abstract:
The relationship between rock stress determined by AE method and the coal and gas bursts in the Xieer coal mine is given in this paper.It shows that the bursts occur in high stress areas,and none in normal or low stress areas.
1997, 3(1): 95-96,49.
Abstract (149) PDF (120KB)(7)
Abstract:

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