2001 Vol. 7, No. 2

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THE THEORY AND METHOD OF EVALUATION OF REGIONAL CRUSTAL STABILITY BASED ON CONCEPT OF “SAFE ISLAND”
HU Hai-tao
2001, 7(2): 97-103.
Abstract (457) PDF (193KB)(17)
Abstract:
The concept about "safe island" created by late Professor Li Siguang (J.S.Lee) is described in this paper from that there are a few weak destroyed districts in high intensity area of a strong earthquake. Author pointed out so-called "safe island" means the area which belongs to relative stability ma...
ANALYSIS ON SISMIC RISK OF THE CONVEYANCE WATER TUNNEL ENGINEERING IN SHENZHEN
AN Cheng-xuan, SUN Ye, YANG Mei-ling
2001, 7(2): 104-110.
Abstract (202) PDF (238KB)(9)
Abstract:
With reference to the existing determination and evaluation about seismic intensity in Shenzhen region,according to the analysis of seismogeology and the calculation of exceeding probability,and in consideration of importance of the conveyance water tunnel engineering,the nearly east-west line betwe...
THE GEOLOGICAL AND GEOCHEMICLA CHARACTERISTICS OF THE JIFENG KOMATIIITESIN THE DA HINGGAN LING MOUNTAINS
HU Dao-gong, ZHENG Qing-dao, FU Jun-yu, LIU Xu-guang
2001, 7(2): 111-115.
Abstract (301) PDF (244KB)(8)
Abstract:
Field geological survey and geochemistry indicate that the metamorphic ultrabasic rock in Jifeng area of the north Da Hinggan Ling Mountains is komatiite with spinifex texture. The komatiite series consists of the ultramafic komatiite, basaltic komatiite, tholeiite and gabbro. The komatiite displays...
GEOCHEMICAL STUDY ON TECTONIC SETTING FOR NEOPROTEROZOIC GRANITOIDS, NORTHERN MARGIN OF SONGNEN MASSIF, CHINA
ZHENG Qing-dao
2001, 7(2): 116-122.
Abstract (194) PDF (232KB)(7)
Abstract:
The characteristics of granitoids petrology and geochemistry in the north margin of Songnen Massif indicates that the Neoproterozoic granitic bodies have typical rock association and ortho-succession magmatic evolution series belonging to convergent plate boundary. The Keluo pluton is I-type granite...
ON ANISOTROPY OF SURFACE TOPOGRAPHY OF ROCK JOINT
ZHOU Hong-wei, XIE He-ping, Kwasniewski M A, YANG Zon-yee
2001, 7(2): 123-129.
Abstract (238) PDF (251KB)(14)
Abstract:
Based on date of surface topography of rock joint measured by laser profilometer, by transferring the height distribution into the slope distribution and taking spectral analysis of slope distribution, the anisotropic behavior of surface topography of rock joint is discussed in this paper. The gener...
AN EXPERIMENTAL STUDY ON THE BRITTLE-PLASTIC TRANSITION IN GABBRO
SANG Zu-nan, ZHOU Yong-sheng, HE Chang-rong, JIN Zhen-min
2001, 7(2): 130-138.
Abstract (182) PDF (392KB)(8)
Abstract:
In this paper,an experimental study of brittle-ductile transition in Panzhihua fine grained gabbro was performed under a Griggs-type apparatus with NaCl as the confining pressure medium. Experiments were conducted in conditions of:450MPa~800MPa confining pressure,600℃~1150℃ temperature,and 1×10-4~3....
STUDY ON EFFECT OF PORE PRESSURE ON STRAIN LOCALIZATION OF ROCK AND DIGITAL SIMULATION
WANG Xue-bin, PAN Yi-shan, DING Xiu-li, SHENG Qian
2001, 7(2): 139-143.
Abstract (219) PDF (186KB)(9)
Abstract:
Firstly,a series of advance on effect of pore pressure on strain localization of solid has been introduced in this paper Secondly,the effect of pore pressure on strain localization(shear bands) of the rock has been modeled based upon fast Lagrangian analysis.The results modeled show that the pore pr...
THE STUDY OF RELEASING AND QUANTITATIVE CALCULATION OF CO2 UNDER THE CONTACT METAMORPHOSE EFFECT
SUN Zhan-qang, LIU De-liang, ZHENG De-san, YANG Xao-yong, WANG Bai-chang, CHEN Yong-jian, ZHANG Giao-dong, TAN Ying, LE Zhen-sheng
2001, 7(2): 144-150.
Abstract (237) PDF (253KB)(11)
Abstract:
To discuss that metamorphic carbonate rocks release the amount and ability of CO2 and CO2 releasing conditions,CO2 flux, which metamorphic carbonate rocks release in contact metamorphism, is analyzed and calculated quantitatively on the basis of metamorphic reaction and time integrated fluid flux. T...
THE STUDY OF METHOD ABOUT SOME MINUTE METALLIC SULPHIDE SEPARATION AND EXTRACTION
FENG Yan-wei
2001, 7(2): 151-154.
Abstract (150) PDF (111KB)(7)
Abstract:
This paper mainly discusses a problem that how is separated and extracted some minutemetallic sulphide from ores of the Ginya "Carlin-type" gold deposit, Guangxi Province. Author has improved technique and manipulation skill. The experiment has been a success. The result of experiment has offered tr...
JIYANG BRUSH STRUCTURAL SYSTEM AND ITS RELATIONSHIP WITH OIL AND GAS
XU Shou-yu, LIU Ze-rong
2001, 7(2): 155-160.
Abstract (250) PDF (172KB)(7)
Abstract:
After discussing the characteristics of Jiyang Brush Structural System and the distribution of oil and gas in this area,the paper analyses the relationship between the Brush Structural System and hydrocarbon from the viewpoint of the formation and evolution of the Jiyang Brush Structural System.The ...
THE ACCUMULATIVE CONDITIONS OF THE MIDDLE ORDOVICIAN OIL AND GAS IN LUNNAN AREA, TARIM BASIN
KUANG Hong-wei, PENG De-tang, LI Nan
2001, 7(2): 161-166,103.
Abstract (176) PDF (243KB)(6)
Abstract:
The article discusses the accumulative conditions of the Middle Ordovician oil and gas in Lunnan area, Tarim basin,by studying the strata and the sedimentary facies and in combination with synthetical interpretation of seismic data. It points out that the conditions of oil source reservoirs and cap ...
CHEMICAL COMPOSITION AND CHARACTERIZATION OF CHEMICAL WEATHERING OF LATE TERTIARY RED CLAY IN XIFENG,GANSU PROVINCE
CHEN Yang, CHEN Jun, LIU Lian-wen
2001, 7(2): 167-175.
Abstract (344) PDF (294KB)(9)
Abstract:
Geochemical studies have been conducted on the red clay samples from Xifeng,Gansu Province,China.Results show that these samples are enriched in carbonate and depleted in other elements such as Si,Al,and Fe.To eliminate the effect of the carbonate fraction,five samples were leached by 1mol/L acetic ...
THE RESPONSE OF THE DEVELOPMENT OF FEN RIVER TO NEOTECTONIC MOVEMENT AND PALEOCLIMATE CHANGES SINCE LAST NON-GLACIATION STAGE
HU Xiao-meng, YANG Jing-chun
2001, 7(2): 176-180.
Abstract (264) PDF (158KB)(9)
Abstract:
There have existed three accumulation terraces (T3,T2 and T1) and an erosional one in Linfen Basin since last non glaciation stage (MIS5).By the means of loess paleosol series and TL,we make out that these terraces occurred in 130kaBP,130kaBP~52kaBP,52kaBP and 9kaBP respectively.Normally,neotectonic...

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