2009 Vol. 15, No. 4

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INFLUENCE OF STRENGTH PARAMETERS ON OVERALL DEFORMATIONS OF ROCK SPECIMENS WITH INITIALLY RANDOM MATERIAL IMPERFECTIONS
WANG Xue-bin
2009, 15(4): 321-329.
Abstract (283) HTML (131) PDF (690KB)(13)
Abstract:
For heterogeneous rock specimen with smooth ends and initially random material imperfections in uniaxial plane strain compression, the effects of initial cohesion and internal friction angle on the overall deformational characteristics (such as the axial, lateral and volumetric strains as well as th...
STRENGTH ESTIMATION OF COLUMNAR JOINTED BASALTIC MASS BASED ON GEOLOGICAL STRENGTH INDEX
ZHENG Wen-tang, WANG Hua-an, GE Jun-hui
2009, 15(4): 330-335.
Abstract (226) HTML (150) PDF (555KB)(8)
Abstract:
The strength parameters of jointed rock mass are important to rock engineering design.The columnar jointed basaltic mass is special with columnar mosaic structure and the similar engineering case la cks.The strength of columnar jointed basaltic mass currently becomes an advanced research hotspot in ...
MESOZOIC-CENOZOIC TECTONIC MAGMATIC PORTFOLIO ANALYSIS IN CUOQIN AREA OF THE MIDDLE GANGDISE
JIANG Yuan-sheng, XU Tian-de, ZHAO You-nian
2009, 15(4): 336-348.
Abstract (206) HTML (75) PDF (1040KB)(6)
Abstract:
On the basis of 1:250000 regional geological mapping in the blank areas of the Qinghai-Tibet Plateau, the magmatic rocks in Cuoqin area are divided into six kinds of petrotectonic assemblage through their time-spatial distribution, occurrence, petrology, geochemistry and tectonic settings as follows...
GEOCHEMISTRY AND GENESIS OF SHENGMIKENG LEAD-ZINC DEPOSIT IN NORTHERN WUYI, EASTERN CHINA
LUO Ping, WU Gan-guo, ZHANG Da, DI Yong-jun, WANG Chang-min, WANG Yong-qin
2009, 15(4): 349-362.
Abstract (223) HTML (96) PDF (3424KB)(5)
Abstract:
The Shengmikeng vein-type lead-zinc deposit is located in Huanggangshan volcano-tectonic depression of the Mesozoic volcanic belt in Northern Wuyi.The ore featured by veinlets and disseminations is hosted both inside the fault zone in the upper Jurassic Ehuling ignimbrite and the potassic trachyte p...
GEOCHEMICAL CHARACTERS OF BAND IRON FORMATIONS FROM XINGSHAN IRON DEPOSIT IN QIAN'AN AREA, HEBEI PROVINCE: IMPLICATION FOR THEIR ORIGIN
DING Wen-jun, CHEN Zheng-le, CHEN Bo-lin, DONG Fa-xian, CUI Ling-ling
2009, 15(4): 363-373.
Abstract (391) HTML (198) PDF (1511KB)(11)
Abstract:
The origin of Qian'an BIFs remains unclear, although plenty of efforts have been done in this area (especially on the Precambrian geology, petrology and geochemistry). In the early stage of "Exploring Mines Facing A Resourse Crisis" project, large and high-grade iron ores were discovered. The ma\or ...
RESERVOIR DIAGENESIS AND DIAGENETIC EVOLUTION HISTORY OF 4th + 5th-6th MEMBERS IN YANCHANG FORMATION, WESTERN MAHUANGSHAN, ORDOS BASIN
LI Shun-li, LI Sheng-li, YU Xing-he, DU Wei-wei
2009, 15(4): 374-384.
Abstract (211) HTML (106) PDF (3492KB)(4)
Abstract:
The reservoirs of 4th + 5th-6th Members of Yanchang Formation in west Mahuangshan were fine sandstone of delta front. The diagenesis in this area had reached A-period of middle diagenetic stage. The mechanical compaction and cementation had resulted in the poor physical property of the reservoir and...
ROTATIONAL SHEAR TECTONIC SYSTEMS IN DIFFERENT LEVELS AND THEIR RELATION TO HYDROCARBON ENRICHMENT RULES IN HEBEI, SHANDONG AND HENAN PROVINCES
LI Hong-nan, LIU Wei, CAI Chuan-qiang, LIU Ze-rong
2009, 15(4): 385-395.
Abstract (220) HTML (117) PDF (3286KB)(14)
Abstract:
With the effect of stress and stress field in Tanlu fault in Meso-Cenozoic, tectonic systems of various rotational shear structures are developed extensively in Huabei depression area in the second depression zone of new Cathaysian, which controls the generation and distribution of duplex hydrocarbo...
CARBONATE RESERVOIR COMPARISON BETWEEN TAHE OIL FIELD AND PUGUANG GAS FIELD
LI Hui-jun, ZHOU Xin-gui, ZHANG Lin-yan, ZHANG Wen-cai
2009, 15(4): 396-408.
Abstract (239) HTML (207) PDF (1597KB)(10)
Abstract:
Great breakthroughs have been made in ChinaGs carbonate rocks exploration for oil and gas in recent years with the discoveries of such large-scale oil and gas fields as Tahe oilfield and Puguang gasfield. Basic features of reservoirs, diagenesis, and controlling factors of Tahe oilfield and Puguang ...
STUDY ON QUATERNARY TECTONIC-SEDIMENTARY EVOLUTION OF LUJIAO AREA, EAST EDGE OF YUANJIANG SAG, DONGTING BASIN
BAI Dao-yuan, ZHOU Ke-jun, MA Tie-qiu, WANG Xian-hui, PENG Yun-yi, LI Gang, CHEN Du-ping
2009, 15(4): 409-402.
Abstract (291) HTML (198) PDF (1710KB)(10)
Abstract:
Quaternary Yuanjiang sag is an eastern one of the secondary tectonic units of the Dongting basin. Detailed geologic mapping and bore data were taken to reveal the Quaternary tectonic, sedimentary and geomorphic characteristics and tectonic-sedimentary evolution of Lujiao area, northeast Yuanjiang sa...

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