2010 Vol. 35, No. 6
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2010, 35(6): 891-898.
doi: 10.3799/dqkx.2010.104
PDF 1679KB
Abstract:
This paper determines the calcium carbonate content in 213 surface sediment samples from the South China Sea (SCS) in order to have a comprehensive analysis of the distribution character of calcium carbonate and its controlling factors in surface sed...
This paper determines the calcium carbonate content in 213 surface sediment samples from the South China Sea (SCS) in order to have a comprehensive analysis of the distribution character of calcium carbonate and its controlling factors in surface sed...
2010, 35(6): 899-907.
doi: 10.3799/dqkx.2010.105
Abstract:
Dripping water was seasonally collected from several sites (denoted as site 1D, 3D, 4D and 5D toward the cave entrance respectively) inside the oligotrophic Heshang cave, Central China, to detect the metabolic activities of microbial communities in r...
Dripping water was seasonally collected from several sites (denoted as site 1D, 3D, 4D and 5D toward the cave entrance respectively) inside the oligotrophic Heshang cave, Central China, to detect the metabolic activities of microbial communities in r...
2010, 35(6): 908-920.
doi: 10.3799/dqkx.2010.106
Abstract:
The Late Permian Yingmailai granitic intrusion is located in the middle part of the southern Tianshan. It consists predominantly of biotite K-feldspar granite with minor two-mica K-feldspar granite. Two types of ellipse-shaped xenoliths including dar...
The Late Permian Yingmailai granitic intrusion is located in the middle part of the southern Tianshan. It consists predominantly of biotite K-feldspar granite with minor two-mica K-feldspar granite. Two types of ellipse-shaped xenoliths including dar...
2010, 35(6): 921-932.
doi: 10.3799/dqkx.2010.107
Abstract:
A large scale of intermediate dykes developed in Xar Moron fault belt in Linxi county, Inner-Mongolia, with NE3° to 5° angle of strike and nearly vertical trend. LA-ICP-MS zircon U-Pb dating method and whole rock geochemistry test were applied. It is...
A large scale of intermediate dykes developed in Xar Moron fault belt in Linxi county, Inner-Mongolia, with NE3° to 5° angle of strike and nearly vertical trend. LA-ICP-MS zircon U-Pb dating method and whole rock geochemistry test were applied. It is...
2010, 35(6): 933-946.
doi: 10.3799/dqkx.2010.108
Abstract:
Jinchanggouliang region, which consists of Jinchanggouliang, Erdaogou and Xiaoerdaogou gold deposits, is located in the north of North China Craton (NCC) and south of Inner Mongolia-Daxinganling orogenic belt. Numerous early Mesozoic diorites and dio...
Jinchanggouliang region, which consists of Jinchanggouliang, Erdaogou and Xiaoerdaogou gold deposits, is located in the north of North China Craton (NCC) and south of Inner Mongolia-Daxinganling orogenic belt. Numerous early Mesozoic diorites and dio...
2010, 35(6): 947-958.
doi: 10.3799/dqkx.2010.109
Abstract:
Herein, XRF, ICP-MS and hydride generation atomic fluorescence spectrometry (HGAFS) techniques were used to analyze the major, trace elements and Se contents of the Se-rich black rock series in Zunyi, Guizhou Province, respectively. Based on the elem...
Herein, XRF, ICP-MS and hydride generation atomic fluorescence spectrometry (HGAFS) techniques were used to analyze the major, trace elements and Se contents of the Se-rich black rock series in Zunyi, Guizhou Province, respectively. Based on the elem...
2010, 35(6): 959-968.
doi: 10.3799/dqkx.2010.110
Abstract:
Recent studies showed that the Shijihe area is an important polymetallic metallogenic belt in western part of North Qilian Mountains in China. However, geological study degree is very low due to its remoteness and poor conditions. The Lavas of Shijih...
Recent studies showed that the Shijihe area is an important polymetallic metallogenic belt in western part of North Qilian Mountains in China. However, geological study degree is very low due to its remoteness and poor conditions. The Lavas of Shijih...
2010, 35(6): 969-984.
doi: 10.3799/dqkx.2010.111
Abstract:
Taoxi uplift is a part of Wuyishan uplift and occurs as metamorphic core complexes. There are abundant medium to large scale copper and polymetallic ore deposits distributed in the uplift, such as the super large scale Zijinshan copper-gold deposit, ...
Taoxi uplift is a part of Wuyishan uplift and occurs as metamorphic core complexes. There are abundant medium to large scale copper and polymetallic ore deposits distributed in the uplift, such as the super large scale Zijinshan copper-gold deposit, ...
2010, 35(6): 985-999.
doi: 10.3799/dqkx.2010.112
Abstract:
SHRIMP zircon U-Pb dating results are firstly reported for the hyalotourmalites in Houxianyu borate deposit in order to determine its formation time. The zircons commonly have core-rim structures. Most cores show oscillatory zoning in CL and plane po...
SHRIMP zircon U-Pb dating results are firstly reported for the hyalotourmalites in Houxianyu borate deposit in order to determine its formation time. The zircons commonly have core-rim structures. Most cores show oscillatory zoning in CL and plane po...
2010, 35(6): 1000-1010.
doi: 10.3799/dqkx.2010.113
Abstract:
Zhaxikang deposit is the only large Pb-Zn-Sb-Ag symbiotic deposit in the northern Himalayas gold-antimony polymetallic belt, with its ore body located in the high-angle twisting fault zone striking SN direction. The δ34S of pyrite, sphalerite, galena...
Zhaxikang deposit is the only large Pb-Zn-Sb-Ag symbiotic deposit in the northern Himalayas gold-antimony polymetallic belt, with its ore body located in the high-angle twisting fault zone striking SN direction. The δ34S of pyrite, sphalerite, galena...
2010, 35(6): 1011-1022.
doi: 10.3799/dqkx.2010.114
Abstract:
Zircon U-Pb isotopic ages of Jinduicheng and Laoniushan granite are measured by LA-ICP-MS techniques, and we find that the mean ages are 143.7±3 Ma and 144.5±4.4 Ma respectively, which correspond to the molybdenite Re-Os age 139±3.0 Ma of Jinduicheng...
Zircon U-Pb isotopic ages of Jinduicheng and Laoniushan granite are measured by LA-ICP-MS techniques, and we find that the mean ages are 143.7±3 Ma and 144.5±4.4 Ma respectively, which correspond to the molybdenite Re-Os age 139±3.0 Ma of Jinduicheng...
2010, 35(6): 1023-1028.
doi: 10.3799/dqkx.2010.115
Abstract:
The quality grade, gemology characteristics, cutting and grinding processing of the loosen turquoises filled with aluminum phosphate adhesive are improved distinctly, and consequently they are similar with the natural turquoises. They can not be iden...
The quality grade, gemology characteristics, cutting and grinding processing of the loosen turquoises filled with aluminum phosphate adhesive are improved distinctly, and consequently they are similar with the natural turquoises. They can not be iden...
2010, 35(6): 1029-1034.
doi: 10.3799/dqkx.2010.116
Abstract:
Flower structures are specific modes of formation, and their distinctive characteristics make them important criteria for the identification of a strike-slip zone in vertical cross-sections and on seismic profiles. Two element types of the classical ...
Flower structures are specific modes of formation, and their distinctive characteristics make them important criteria for the identification of a strike-slip zone in vertical cross-sections and on seismic profiles. Two element types of the classical ...
2010, 35(6): 1035-1040.
doi: 10.3799/dqkx.2010.117
Abstract:
Our study on two typical intra-cratonic basins, namely, Ordos basin, China and Surat basin, Australia indicates that the sequence stratigraphic infilling succession is correlated, The study results show that intra-cratonic basin has unique stratigrap...
Our study on two typical intra-cratonic basins, namely, Ordos basin, China and Surat basin, Australia indicates that the sequence stratigraphic infilling succession is correlated, The study results show that intra-cratonic basin has unique stratigrap...
2010, 35(6): 1041-1052.
doi: 10.3799/dqkx.2010.118
Abstract:
The middle and north area of Huanghua depression, located in the middle of the Bohai Bay basin, is a significant Cenozoic tectonic unit. This study area underwent the episodic subsidence and the subsidence center migrated regularly which was interpre...
The middle and north area of Huanghua depression, located in the middle of the Bohai Bay basin, is a significant Cenozoic tectonic unit. This study area underwent the episodic subsidence and the subsidence center migrated regularly which was interpre...
2010, 35(6): 1053-1059.
doi: 10.3799/dqkx.2010.119
Abstract:
The fourth and sixth members of upper Triassic Xujiahe Formation develop structural, structural-lithological and lithological reservoirs with characteristics of low porosity, permeability, resistivity and high irreducible water saturation in Guang'an...
The fourth and sixth members of upper Triassic Xujiahe Formation develop structural, structural-lithological and lithological reservoirs with characteristics of low porosity, permeability, resistivity and high irreducible water saturation in Guang'an...
2010, 35(6): 1060-1068.
doi: 10.3799/dqkx.2010.120
Abstract:
In order to investigate thermal state of crust in northern continental margin of the South China Sea, we calculated the Curie point depths with the shipboard magnetic anomaly by employing the method of power-density spectrum analysis. Combining with ...
In order to investigate thermal state of crust in northern continental margin of the South China Sea, we calculated the Curie point depths with the shipboard magnetic anomaly by employing the method of power-density spectrum analysis. Combining with ...
2010, 35(6): 1069-1074.
doi: 10.3799/dqkx.2010.121
Abstract:
The interaction of fluvial geomorphology evolution and special geological environment in horizontal formation in Wanzhou district resulted in its unique stepladder geomorphic feature. Based on a systematic field investigation, exploration and data co...
The interaction of fluvial geomorphology evolution and special geological environment in horizontal formation in Wanzhou district resulted in its unique stepladder geomorphic feature. Based on a systematic field investigation, exploration and data co...
2010, 35(6): 1075-1080.
doi: 10.3799/dqkx.2010.122
Abstract:
To ensure the geological security for the development of urban planning of facility-sliding strata of Badong Formation in the Three Gorges reservoir area, we discuss the geological environment development and protection issues in abnormal slope areas...
To ensure the geological security for the development of urban planning of facility-sliding strata of Badong Formation in the Three Gorges reservoir area, we discuss the geological environment development and protection issues in abnormal slope areas...
