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2012年  23卷  第3期

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Yinggehai Basin Gas Exploration:Comparison with Jiyang Depression
Zhifeng Wan; Bin Xia; Baofeng Lü; Zhourong Cai ; Weiliang Liu
2012, 14(3). doi: 10.1007/s12583-012-0256-3
摘要:
Yinggehai (莺歌海) basin and Jiyang (济阳) depression experienced similar tectonic evolution, which is mainly controlled by the strike-slip faults. The strike pull-apart basins are characteristic by multiple deposition cycles, migration of deposition and subsidence center, and diversity depositional systems. Furthermore, both basins show abnormal formation pressure. Compared with the oil and gas-rich Jiyang depression, Yinggehai basin developed the similar geological background that is favorable to the formation of funnel-shaped meshwork-carpet subtle reservoirs. Overpressure diapir body is the core of hydrocarbon accumulation in central diaper zone of Yinggehai basin. Driven by high pressure, oil and gas migrate along the funnel-shaped passage system into the overlying low-potential zone formed. The overlying sand bodies of overpressure diapirs are the favorable gas exploration zone.
Petroleum charging and leakage in the BZ25-1 field, Bohai Bay basin
2012, 14(3). doi: 10.1007/s12583-012-0251-8
摘要:
This paper discusses origin and charging histories of the Bozhong (aecurrency signa) 25-1 field (BZ25-1) in the Bozhong sub-basin, Bohai (aecurrency signae mu center dot) Bay basin. Petroleum is contained in both Paleogene and Neogene reservoirs in the BZ25-1 field. The origin of the field was studied using biomarker distributions for 61 source rock samples ..
The Neoarchean Ophiolite in the North China Craton:Early Precambrian Plate Tectonics and Scientific Debate
Kusky Timothy M; Zhai Mingguo;
2012, 14(3). doi: 10.1007/s12583-012-0253-6
摘要:
Archean greenstone belts and their possible inclusion of fragments of ophiolites is an im-portant research subject,since it is correlated with the nature of early oceanic crust,and can yield in-formation on the nature of early planetary lithospheres,the origin of TTG(tonalite-trondhjemite-granodiorite) continental crust,the formation of early cratons and continents...
Analysis of slope stability with dynamic overloading from earthquake
2012, 14(3). doi: 10.1007/s12583-012-0257-2
摘要:
The analysis of slope earthquake stability is one of the most important research subjects in geotechnical engineering and earthquake engineering. Two different concepts of slope earthquake stability are put forward: strength reserve stability and dynamic overloading stability. The first concept of slope earthquake stability has been widely accepted, and relative analysis methods ...
Paleoenvironmental changes in the northern Okinawa trough since 25 ka BP: REE and organic carbon evidence
2012, 14(3). doi: 10.1007/s12583-012-0254-5
摘要:
Paleoenvironmental changes in the northern Okinawa trough covering the last 25 ka were synthetically reconstructed using REE and organic carbon indices of core CSH1. Variations of these parameters revealed three distinct intervals of major sediment provenance changes that can be related to sea-level fluctuation and Tsushima Warm Current evolution. Interval 1
Conodont biostratigraphy and evolution across Permian-Triassic boundary at Yangou Section, Leping, Jiangxi Province, South China
2012, 14(3). doi: 10.1007/s12583-012-0255-4
摘要:
Series of large conodont samples with 20 species and 3 similar species in 3 genera were collected from the Permian-Triassic (P-T) boundary sequence in a shallow carbonate facies at Yangou (ae(2)ae(2)Y), Leping (a(1)a(13)) County, Jiangxi (ae +/- Yeyen) Province, South China. On the basis of the distributions of the identified species, seven conodont zones have been
Stability of Huangtupo riverside slumping mass II# under water level fluctuation of Three Gorges Reservoir
2012, 14(3). doi: 10.1007/s12583-012-0259-0
摘要:
After the normal operation of the Three Gorges Reservoir, the water level of the reservoir will fluctuate periodically. Water level fluctuation will soften the rock and soil on the banks, induce underground water fluctuation and decrease the shear strength of rock soil on the banks, and in turn affect the landslide stability. The Huangtupo (e >>”aeYae) landslide is a typical large and complex landslide ...
Health risk assessment of groundwater pollution-A case study of typical city in North China plain
2012, 14(3). doi: 10.1007/s12583-012-0260-7
摘要:
This article presents an application of assessing human health risk in typical city of North China plain. Combined with water quality and multi-element analysis, Pb, Cd, Cr6+, Mn, NO3 (-), F-, and As in groundwater samples were chosen to be used for human health risk assessment of drinking water pathway and dermal contact pathway, and results show a good effect...
Approach to the relation of mutual-feed joint-variation in groundwater management model
2012, 14(3). doi: 10.1007/s12583-012-0261-6
摘要:
In groundwater management, the exchanges between groundwater and other water such as surface water and spring water need to be considered. Some exchange is dependent on the groundwater level, which is called covariate. The pumping rate, groundwater level, and covariate interact and the relation of mutual-feed joint-variation is used to describe their interaction....
gehai basin gas exploration: Comparison with Jiyang depression
2012, 14(3). doi: 10.1007/s12583-012-0000-0
摘要:
Yinggehai (eZ(0)aeOEae mu center dot) basin and Jiyang (ae mu Ze similar to(3)) depression experienced similar tectonic evolution, which is mainly controlled by the strike-slip faults. The strike pull-apart basins are characteristic by multiple deposition cycles, migration of deposition and subsidence center, and diversity depositional systems. Furthermore, both ...
Measuring internal velocity of debris flows by temporally correlated shear forces
2012, 14(3). doi: 10.1007/s12583-012-0258-1
摘要:
Debris flow is a kind of geological hazard occurring in mountain areas. Its velocity is very important for debris flow dynamics research and designing debris flow control works. However, most of past researches focused on surface velocity and mean velocity of debris flow, while few researches involve its internal velocity because there is no available method for measuring ...
Petroleum charging and leakage in the BZ25-1 field, Bohai Bay basin(卧排表)
2012, 14(3). doi: 10.1007/s12583-012-0251-8
摘要:
This paper discusses origin and charging histories of the Bozhong (aecurrency signa) 25-1 field (BZ25-1) in the Bozhong sub-basin, Bohai (aecurrency signae mu center dot) Bay basin. Petroleum is contained in both Paleogene and Neogene reservoirs in the BZ25-1 field. The origin of the field was studied using biomarker distributions for 61 source rock samples ..
Paleoenvironmental changes in the northern Okinawa trough since 25 ka BP: REE and organic carbon evidence (卧排表)
2012, 14(3). doi: 10.1007/s12583-012-0254-5
摘要:
Paleoenvironmental changes in the northern Okinawa trough covering the last 25 ka were synthetically reconstructed using REE and organic carbon indices of core CSH1. Variations of these parameters revealed three distinct intervals of major sediment provenance changes that can be related to sea-level fluctuation and Tsushima Warm Current evolution. Interval 1
The late mesozoic granodiorites from the southwest basin in the South China Sea and its tectonic implication
2012, 14(3). doi: 10.1007/s12583-012-0252-7
摘要:
The southwest basin is a key to study the origin and development of the South China Sea (SCS). We do not know much about its boundaries, geological history, and the formation of its sea floor because it has a complex and highly regional structural background, notable sediment activity, and yet few floor rocks. Here a granodiorite sample was collected from the southern margin of the southwest basin of the South China Sea. The results indicated that the Ar-40-Ar-39 ages of biotites in the sample are 110.3 +/- 0.5 Ma, suggesting that they were