2008 Vol. 14, No. 1

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METAMORPHIC COLLISIONAL MÉLANGE IN THE DABIE MOUNTAINS, EASTERN CHINA
XU Shu-tong, WU Wei-ping, LIU Yi-can, WANG Hua-ming
2008, 14(1): 1-21.
Abstract (440) HTML (246) PDF (1011KB)(9)
Abstract:
The Dabie Mountains are a collisional orogen between Sino-Korean and Yangtze continents. It is characterized by thin-skin tectonics as revealed by the seismic reflection profile. The rocks forming a detachment (thrust shear)zone between the two collisional continents are collisional mélanges. The de...
RESEARCH ON IMPACT TECTONICS AND IMPACTITES:STATUS AND PROSPECTS
YOU Zhen-dong, LIU Rong
2008, 14(1): 22-36, 21.
Abstract (446) HTML (216) PDF (989KB)(27)
Abstract:
Transient (within 1 second)dynamic high pressures (ca tens of to up to one hundred GPa) and high temperatures (>1500℃)caused by the impact process will eventually result in the development of an astrobleme when a large meteorite impacts the earth's surface, and the surrounding rocks must undergo ...
OBSERVATION AND DETERMINATION OF THE NANO-SIZED PARTICLE LAYER IN ROCKS AND ITS GEOLOGICAL SIGNIFICANCE
SUN Yan, LU Xian-cai, SHU Liang-shu, LIU Hao
2008, 14(1): 37-44.
Abstract (199) HTML (168) PDF (344KB)(8)
Abstract:
Nano-sized particles are extremely tiny (≤ 100 nm)and homogeneous in size, consist of polybasic materials and have multiple functions. The nano-sized particle layer of shear slip plane in rocks was firstly discovered in granitic mylonite of the San Andreas Fault Zone, United States, and later this p...
MAGNETIC FABRICS OF CENOZOIC SEDIMENTARY ROCKS IN THE WESTERN QAIDAM BASIN AND THEIR STRUCTURAL SIGNIFICANCE
LI Li, JIANG Rong-bao, QI Wan-xiu, WU Yi-ping, YANG Yi, LI Xue-zhi, CHEN Zheng-le, CHEN Xuan-hua, WANG Xiao-feng, REN Xiao-juan
2008, 14(1): 45-56.
Abstract (256) HTML (133) PDF (500KB)(10)
Abstract:
Magnetic fabric analysis of Cenozoic sedimentary rocks in the vicinity of Shizigou, western Qaidam basin, shows that the magnetic fabrics are characterized by well-developed magnetic foliation, undeveloped magnetic lineation and a flattened magnetic susceptibility ellipsoid, and the P value symboliz...
FRACTAL ANALYSIS OF THE TEMPORAL-SPATIAL DISTRIBUTION OF CRETACEOUS MINERAL DEPOSITS IN CHINA
SHEN Wei
2008, 14(1): 57-64.
Abstract (238) HTML (130) PDF (264KB)(12)
Abstract:
The concepts of fractals are used in the Earth sciences to depict the self-similar characteristics of geological variables and geologic bodies. The fractal model often provides powerful tools for characterizing the basic spatial distribution structure of geological variables and bodies. Many geologi...
METALLOGENIC MODEL OF THE XIANGSHAN URANIUM ORE FIELD, JIANGXI PROVINCE
SHAO Fei, CHEN Xiao-ming, XU Heng-li, HUANG Hui-ming, TANG Xiang-sheng, ZOU Mao-qing, HE Xiao-mei, LI Mei
2008, 14(1): 65-73.
Abstract (591) HTML (444) PDF (357KB)(21)
Abstract:
The authors studied the regional geological setting and metallogenic characteristics of the Xiangshan ore field and analyzed the sources of ore substances and ore fluids and channels for transport of ore substances, and on that basis, they constructed a uranium metallogenic model for the Xiangshan o...
IGNEOUS SERIES AND EPITHERMAL PORPHYRY Cu-Au-Ag MINERALIZATION SYSTEM IN THE ZIJINGSHAN ORE FIELD, FUJIAN PROVINCE
HUANG Ren-sheng
2008, 14(1): 74-86.
Abstract (272) HTML (132) PDF (500KB)(19)
Abstract:
The rocks in the Zijingshang ore field are from the surface to depth as follows:Lower Cretaceous intermediate-acid volcanic rocks, subvolcanic dacite-porphyry, hypabyssal granodioriteporphyry and middle-and deep-level porphyritic granodiorite, forming an intermediate-acid volcanicintrusive sequence....
GIS-BASED ANALYSIS OF GEOMORPHOLOGICAL FACTORS FOR LANDSLIDE HAZARDS
GUO Fang-fang, YANG Nong, ZHANG Yue-qiao, MENG Hui, YE Bao-ying
2008, 14(1): 87-96.
Abstract (408) HTML (161) PDF (1013KB)(22)
Abstract:
Based on SRTM-DEM data and using the ArcGIS platform, the authors have extracted and calculated the elevations, relief amplitudes and slopes of 2319 landslide sites on the eastern margin and the Qinghai-Tibet Plateau and in the Sichuan basin. The correlation between the geomorphological factors and ...

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