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2002 Vol. 20, No. 1

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Sedimentation on a Carbonate Slope of Permian Qixia Formation in Chaohu Region, Anhui
LI Shuang-ying, YUE Shu-cang
2002, 20(1): 7-12.
Abstract:
The carbonate rocks of Qixia Formation developed extensively on the Lower Yangtze Region have been considered to be deposits of shallow sea carbonate platform for along time. The study indicates, in the case of Chaohu Region, that deposits of Qixia F...
Study on Origin of Special Nodular Limestone
DONG Zhao-xiong, ZHU Xiao-hui, FANG Shao-xian, HOU Fang-hao, WU Yi
2002, 20(1): 20-24.
Abstract:
There are three interpretations for the cause of formation of nodular limestones.The first interpretation is that they are the beds of carbonate concretions, the second is that they are the result of the differential compaction,and the third is that ...
Geology and Geochemistry of Cold Seepage and Venting-related Carbonates
CHEN Duo-fu, CHEN Xian-pei, CHEN Guang-qian
2002, 20(1): 34-40.
Abstract:
Cold seepage and venting is a fluid seepage and venting mainly composed of water, hydrocarbon(gas and crude oil), hydrogen sulfide and fine sediments derived below seafloor. Its temperature is similar to sea water and widely occurs on the seafloor of...
Middle Jurassic Palynoflora and Its Environmental Significance of Dongsheng,Inner Mongolia
JIANG De-xin, WANG Yong-dong
2002, 20(1): 47-54.
Abstract:
Based on the investigations of 63 species of fossil spores and pollen referred to 34 genera found from the Middle Jurassic Yanan Formation in Dongsheng region of Inner Mongolia, the early Middle Jurassic palynoflora in the region was established in t...
A Research on E3 2 Algal-Reef Reservoir in Yuejin Area, Qaidam Basin, Northwestern China
SUN Yan, SHEN An-jiang, XU Yang, LIN Nian-tian
2002, 20(1): 61-69.
Abstract:
E 3 2 lacustrine stratum, located in Yuejin area, Qaidam Basin, northwestern China, is mainly composed of interbedded /intercalated carbonate rock mudstone. Terrigenous debris-bearing micrite,algea-originated laminated micrite,algea-originated stroma...
Application of Laser Scanning Confocal Microscope to the Measurement of Pore Texture in Reservoirs
YING Feng-xiang, YANG Shi-sheng, ZHANG Min, LI Yu-xi, ZHOU Hong-yan
2002, 20(1): 75-79.
Abstract:
Samples are pressure-impregnated with epoxy mixed with a fluorescent dye. So the Laser-induced fluorescence can be observed in thin section with LSCM (Laser scanning confocal microscope ). This technique provides a rapid method for directly obtaining...
Depositional Patterns and Tectonic Setting of Early Tertiary Basins in the NE Margin of the Tibetan Plateau: A Case Study of the Nangqian and Xialaxiu Basins
ZHOU Jiang-yu, WANG Jiang-hai, YIN An, Spurlin M S, Horton B K
2002, 20(1): 85-91.
Abstract:
Many red Early Tertiary basins are exposed in the northeastern margin of the Tibetan Plateau due to intracontinental deformation and uplift induced by the Indo-Asian collision. Based on detailed mapping and sedimentologic investigations of two Early ...
High Resolution Stratigraphy Study on Fluvial Deposit of Guantao Formation in Kenxi Oil Field
LIU Xing, LU You-ming, CHENG Shou-tian, HU Guang-dao
2002, 20(1): 101-105,111.
Abstract:
It is difficult to divide and interpret the fluvial strata because its depositional environment is very special compared with others. The response principle between base level cycle and genetic strata developed by Cross is regarded as the basic theor...
Discussion on the Correlation Methods of Base-level Cycle and Sedimentary Cycle Sequence
LIU Bo
2002, 20(1): 112-117.
Abstract:
It is the research goal of the development geology to build up high-resolution isochronous sequence framework, quantitatively study the division and correlation of the reservoir genetic units and provide the basis for developing small-scale flow-unit...
The Record of Climatic Change from Stalagmite in Xiashuilong Cave of Xuanwei City Since 46ka
ZHANG Mei-liang, YUAN Dao-xian, LIN Yu-shi, QIN Jia-ming
2002, 20(1): 124-128.
Abstract:
Stalagmites in karst caves are the main carrier of paleoclimatic and paleoenvironmental records with the high resolution.The high resolution information on paleoclimatic change from 46.1ka B.P. to 2.75ka B.P. has been obtained through α-counting U-se...
The Study on Diatom of Late Quaternary Sediment in the Continental Margin of the East China Sea (Northern Fujian Member)
WANG Kai-fa, ZHI Chong-yuan, ZHENG Yu-long, WANG Hong-gen
2002, 20(1): 136-143.
Abstract:
The sediment of 4 well's cores of late Quaternary at the continental margin of East China Sea have been systimatically researched, and abundant fossils of diatom, 117 species and varieties in 33 genus, have been found. 12 of diatom zones have been di...
Research on Organic Inclusion in Reservoir and Gas Accumulation Process in Pingluoba Gas Field
GAO Gang, HUANG Zhi-long
2002, 20(1): 156-159.
Abstract:
In this paper, the author researched diagenesis and organic inclusion in reservoir. In this area, organic inclusions were mostly formed by recrystalization and metaspmasis and with various phases. They distributed chiefly in dissolved seams and pores...
Comparison of Geochemistry Character between Mudstones from Deep Lacustrine Facies and Coal Measures by Hydrous Pyrolysis
LIANG Chun-xiu, WEI Zhi-ping, MAO Chao-lin, LI Ben-cai
2002, 20(1): 165-168.
Abstract:
The geochemistry characters are discussed which between mudstones from deep lacustrine facies and coal measured by hydrous pyrolysis.Lots of differences of the two samples are pointed out by analysis.The mudstones from deep lacustrine facies and coal...
Holocene Sedimentary Environments and Sea Level Change Based on Qingfeng Section, Jianhu, Jiangsu, China
XUE Chun-ting
2002, 20(1): 174-177.
Abstract:
The Holocene strata at Qingfeng section, Jianhu County, Jiangsu Province are 405 cm thick. Most parts of the sediments were thought to be formed in lagoon or bay environments and the bed 6 in coastal low land (4 000~ 2 300 aBP ). A very accurate Holo...
Contents
Ordovician Lithofacies Paleogeography of North Bohai Bay Basin
JIN Zhen-kui, ZOU Yuan-rong, YOU Wei-feng, JIANG Chun-lei
2002, 20(1): 13-19.
Abstract:
North Bohai Bay Basin includes the Huanghua Depression, Cangxian Uplift, Central Hebei Depression and Xialiaohe Depression. In the study area, the Ordovician is 600~800 m thick and mainly consists of limestones and dolostones. The Lower Ordovician is...
The Simulation Experiment of Surge-Type Turbidity Current Formation and Development
ZHANG Chun-sheng, LIU Zhong-bao, SHI Dong, CHENG Qi-gui, ZHANG Rong-bing, GAO Chun-ning, LI Jian-xiong
2002, 20(1): 25-29.
Abstract:
The momentum equation of underflows-type turbidity and surge-type turbidity current is compared in this paper,and the result indicates that the surge-type turbidity current entrains water not only through its upper surface but also through its front....
Isotopic Tracer of Material Origin for Hydrothermal Sedimentary Rocks and Significance in Xicheng Mineralization Area
SUN Xing-li, ZENG Yun-fu
2002, 20(1): 41-46.
Abstract:
By means of silicon,strontium and carbon isotope, the material origin of hydrothermal sedimentary rocks associated closely with stratiform ore body is discussed in the paper. The value of silicon isotope δ 30 Si NBS-28 for silica rocks ranges from -0...
Evaluating and Predicting Heterogeneous Reservoirs and Its Oil-bearing Properties by the Analysis Technique of the Diagenetic Lithofacies──Taking Hadexun area in Tarim basin as an example
SUN Yu-shan, SHEN Yin-min, XU Xun, YANG Fan
2002, 20(1): 55-60.
Abstract:
Research for the diagenetic lithofacies is based on sedimentary facies, which stress on the observation of diagenetic characteristics in sedimentary rock. Diagenetic lithofacies are distinguished and defined according to the differences of secondary ...
Element Geochemical Implications for Carbonate Karstification Interpretation──Taking Well S60 in Taihe as an example
QIAN Yi-xiong, CAI Li-guo, LI Guo-rong, LIU Guang-xiang, HAN Yan-ying
2002, 20(1): 70-74.
Abstract:
Paleocave systems form an important type of carbonate reservoirs. The studies illustrates that there are widely developed passage caves in the Middle-Upper Ordovician carbonate of Taihe, including branchwork passage, network maze, anastomotic maze, s...
Internal-wave and Internal-tide Deposits in the Paleostratigraphic Record of the Western Qinling Mountains and Their Origin
JIN Hui-juan, LI Yu-ci, FANG Guo-qing
2002, 20(1): 80-84.
Abstract:
Internal-wave and internal-tide deposits are akind of dragging-flow deposits recently found in ancient deep-sea environments. A variety of internal-wave and internal-tide deposits has been identified in the deep-sea deposit along the Hercynian-Indosi...
Analysis and Isochronostratigraphic Correlation of High-Resolution Sequence Stratigraphy for Chang-6 Oil Reservoir Set in Zhidan Delta, Northern Ordos Basin
ZHENG Rong-cai, PENG Jun
2002, 20(1): 92-100.
Abstract:
On the basis of sedimentary comprehensive study of core and well logging, taking the high-resolution sequence stratigraphy theory from Cross T A. As an instruction through the technique of sedimentary dynamic analysis of sequence structure and stacki...
Sequence Analysis and Source-Reservoir-Cap Rock Associations of Nadu Formation in Baise Basin
PENG Jun, ZHENG Rong-cai, CHEN Jing-shan
2002, 20(1): 106-111.
Abstract:
Through the comprehensive analysis of out crop, rock cores, well loggings and seismic data, one super-long-term, five long-term and sixteen middle-term base-level cycle sequences are distinguished in Nadu Formation of Baise basin. In this paper, the ...
Paleoclimatic Significance of Grain-size Composition of Neogene Red Earth at Xunyi, Shaanxi Province
XUE Xiang-xu, LU Hua-yu, ZHOU Jie
2002, 20(1): 118-123.
Abstract:
An approximately continuous section of Late Cenozoic earthy deposits, developed at Xiaqiang Village, Xunyi County, Shaanxi Province, is 230 m in thickness and consists of the complete Quaternary loess-paleosol sequence and its underlying Neogene red ...
Paleoecology of the Kaili Biota from Middle Cambrian in Taijiang County, Guizhou Province, China
YANG Rui-dong, ZHAO Yuan-long, MAO Jia-ren, NIE Ai-guo, CHEN Xiao-yuan
2002, 20(1): 129-135.
Abstract:
The Kaili Biota is the third most diverse Burgess Shale-type biota after the Burgess Shale and Chengjiang biota. In the paper, on the basis of the study on the burial characteristics of fossils, the ecological be-havior of animal and algae, and the a...
Estimation Method on Productivity of Oil-producing Lake and a Case Study
LIU Chuan-lian, XU Jin-li
2002, 20(1): 144-150.
Abstract:
Commonly used methods on evaluating the productivity of oil-producing lake have been reviewed and take the Paleogene Lake (refered to as Dongying Lake) in the Dongying depression, Shandong Province, as a case study. These methods include organic carb...
Geochemical Characteristics of Carbazole Compounds in Lacustrine Oils from Beisantai Area, Junggar Basin
ZHANG Zhong-ning, CHEN Guo-jun, XUE Lian-hua, WANG Qi
2002, 20(1): 160-164.
Abstract:
Rich carbazole compounds, including carbazole, alkylcarbazoles, benzocarbazoles and alkylbenzocarbazoles, were detected by GC/MS in lacustrine oils from Beisantai area, Junggar Basin. Changes in contents of carbazoles and its isomers indicate that th...
The Change of Crude Oil Components in Different Production Stages
CHEN Zu-lin, ZHU Yang-ming, CHEN Qi
2002, 20(1): 169-173.
Abstract:
Crude oils in different production stages are analyzed by organic geochemical technology. The oils from Donghe,Tazhong and Lunnan oil field in Tarim basin are collected from different stages in the process of production. In addition, the variation ru...