2005 Vol. 11, No. 4

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THE AGE OF THE YELLOW RIVER PASSING THROUGH THE SANMEN GORGE
JIANG Fu-chu, FU Jian-li, WANG Shu-bing, ZHAO Zhi-zhong
2005, 11(4): 293-301.
Abstract (334) PDF (313KB)(14)
Abstract:
The development of the Yellow River was one of the major events of Late Cenozoic tectonogeomorphologic and environmental evolution in East Asia.Only by passing through the Sanmen Gorge between Shanxi and Henan and flowing into the sea,was the main stream of the Yellow River formed eventually.Therefo...
ON AGE OF THE YUANMOU MAN
QIAN Fang
2005, 11(4): 302-310.
Abstract (324) PDF (378KB)(8)
Abstract:
In the past 40 years,the author has further studied the age,living environment and culture of the Yuanmou Man.The study of Yuanmou Man's age has been carried out by:(1) the paleomagnetostratigraphic method,fission-track dating(FTD),electron spin resonance(ESR) and amino acid analysis,(2) the Yuanmou...
QUATERNARY GLACIAL REMNANTS IN THE ZANDA BASIN AND ITS PERIPHERAL HIGH MOUNTAIN AREAS, TIBET, AND DIVISION AND CORRELATION OF GLACIAL STAGES
ZHU Da-gang, MENG Xian-gang, SHAO Zhao-gang, YANG Chao-bin, HAN Jian-en, YU Jia, MENG Qing-wei, Lü Rong-ping
2005, 11(4): 311-319.
Abstract (295) PDF (407KB)(7)
Abstract:
Quaternary glacial remnants in the Zanda basin and its peripheral high mountain areas,Tibet,are widespread and continuously developed and have a complete range of types.The main glacial-eroded remnants include U-shaped valleys,knife-edge crests,horns(pyramidal peaks),firn basins,cirques,ice-scoured ...
PALYNOLOGICAL RECORDS IN THE QANGZÊ SECTION OF THE ZANDA BASIN, NGARI, TIBET
HAN Jian-en, YU Jia, MENG Qing-wei, Lü Rong-ping, ZHU Da-gang, MENG Xian-gang, Shao Zhao-gang
2005, 11(4): 320-327.
Abstract (218) PDF (405KB)(15)
Abstract:
Based on palynological records of the Qangzê section in Zanda basin,Ngari,Tibet,the authors have preliminarily defined the Neogene-Quaternary boundary in the area and revealed the vegetational and environmental history of the area since the late Pleistocene.During~2.68-2.45 Ma,the vegetation was dom...
CHARACTERISTICS OF THE CLIMATIC VARIATATION IN ZOIGÊ IN THE PAST 45 YEARS AND ITS EFFECTS ON THE ECO-ENVIRONMENT IN THE AREA
WANG Yan, ZHAO Zhi-zhong, QIAO Yan-song, LI Chao-zhu
2005, 11(4): 328-332,340.
Abstract (397) PDF (234KB)(14)
Abstract:
Grassland degradation and desertification have become one of the prominent environmental problems in the Zoigê area.This paper analyzes the characteristics of the climatic variation from 1957 to 2001 and its influence on the eco-environment in the Zoigê area.The annual average temperatures in the ar...
DEM ANALYSIS OF THE TECTONOGEOMORPHOLOGY OF THE DABIE OROGENIC BELT
CHENG San-you, LIU Shao-feng, ZHANG Hui-ping, SHEN Xu-hui, SU San, LEI Guo-jing
2005, 11(4): 333-340.
Abstract (283) PDF (776KB)(18)
Abstract:
This paper constructs a digital elevation model(DEM) of the Dabie orogenic belt and performs a modeling analysis of its tectonogeomorphology based on the techno-platform of the geographic information system(GIS) and shuttle radar topography mission(SRTM) topographical data.The relief of the Dabie or...
TECTONIC ACTIVITY OF THE LENGKOU FAULT IN EASTERN HEBEI SINCE THE MESOZOIC AND ITS GEOLOGICAL SIGNIFICANCE
CHEN Yun-feng, WANG Gen-hou, ZHANG Chang-hou, QIN Yuan, MU Sheng-li, LIU Yang
2005, 11(4): 341-349.
Abstract (182) PDF (356KB)(9)
Abstract:
While regionally the whole tectonic framework of the Yanshan intraplate orogenic belt is oriented in E-W and NNE directions,the tectonic line of the Lengkou fault strikes NW.On the basis of detailed field tracing of the Lengkou fault,combined with previous regional research results,the authors hold ...
CHARACTERISTICS AND ORIGIN OF GREENSTONE BELT TYPE GOLD DEPOSITS IN WESTERN SHANDONG
WANG Hong, HUO Guang-hui, WANG Bao-jun
2005, 11(4): 350-356.
Abstract (248) PDF (315KB)(20)
Abstract:
With relatively high total gold background values,the strata of the greenstone belt in western Shandong are source beds of gold deposit.Both the well-preserved greenstone belt and TTG-reworked granite-greenstone belt are favorable for gold deposit formation.The formation and distribution of the know...
2005, 11(4): 357-360.
Abstract (141) PDF (372KB)(7)
Abstract:
ENVIRONMENTAL ANOMALIES OF TRACE ELEMENTS IN URBAN DUST OF XI'AN CITY
TIAN Hui, DU Pei-xuan, Mei Ling
2005, 11(4): 361-369.
Abstract (346) PDF (298KB)(6)
Abstract:
Based on a study of the background values and enrichment degrees of some trace elements in urban dust in Xi'an City,environmental anomaly areas in Xi'an were outlined,and the element characteristics of various environmental anomaly areas were analyzed.The paper points out that the main pollution-pro...
APPLICATIONS OF DIFFERENTIAL GEOMETRY TO QUANTITATIVE ANALYSIS OF STRUCTURAL GEOLOGY
LI Zhi-yong, ZENG Zuo-xun, LUO Wen-qiang
2005, 11(4): 370-376,349.
Abstract (538) PDF (363KB)(31)
Abstract:
This paper elucidates the necessity of introducing differential geometry in the quantitative study of structural geology and discusses its applications in the quantitative study of structural geology and relevant numerical calculation method.Differential geometry provides a basis for the quantitativ...
FINITE ELEMENT ANALYSIS OF EFFECTS OF STICK-SLIP MOVEMENT OF THE SEISMOGENIC FAULT ON THE DEFORMATION OF THE QINGHAI-TIBET RAILWAY——A CASE STUDY OF THE EAST KUNLUN ACTIVE FAULT
OUYANG Yong-long, HU Dao-gong, WANG Lian-jie, ZHANG You, CHEN Xin-long
2005, 11(4): 377-385.
Abstract (233) PDF (507KB)(14)
Abstract:
The East Kunlun fault(EKF) is one of the present-day most active,left-lateral strike-slip seismogenic faults in the northern Qinghai-Tibet Plateau.Future seismic activities or abrupt strike-slip movement of the EKF will cause serious engineering-geological problems to the Qinghai-Tibet Railway.On th...
APPLICATION OF HYDRAULIC FRACTURING IN-SITU STRESS MEASUREMENTS IN TUNNELLING IN WESTERN XINJIANG
MA Xiu-min, PENG Hua, LI Jin-suo
2005, 11(4): 386-393.
Abstract (258) PDF (422KB)(15)
Abstract:
Ground stress measurements and study in western China become more and more important with increasing construction investment in recent years.Hydraulic fracturing in-situ stress measurements were carried out in a working area of a mountain tunnel(with a maximum burial depth of 1100 m) in the North Ti...

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