Journal of Earth Science

2012 Vol. 23, No. 3

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Petroleum Charging and Leakage in the BZ25-1 Field, Bohai Bay Basin

Fang Hao, Xinhuai Zhou, Huayao Zou, Changyu Teng, Yuanyuan Yang

2012, 23(3): 253-267. doi: 10.1007/s12583-012-0251-8

[Abstract](568) [FullText HTML] (151) [PDF 664KB](33)

Abstract:
This paper discusses origin and charging histories of the Bozhong (渤中) 25-1 field (BZ25-1) in the Bozhong sub-basin, Bohai (渤海) 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 sou...

The Late Mesozoic Granodiorites from the Southwest Basin in the South China Sea and Its Tectonic Implication

Zhenguo Zhang, Yuansheng Du, Lianfeng Gao, Nianqiao Fang, Shengxiong Yang, Jian Liu, Chengbing Song

2012, 23(3): 268-276. doi: 10.1007/s12583-012-0252-7

[Abstract](590) [FullText HTML] (109) [PDF 595KB](45)

Abstract:
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 f...

The Neoarchean Ophiolite in the North China Craton: Early Precambrian Plate Tectonics and Scientific Debate

Timothy M Kusky, Mingguo Zhai

2012, 23(3): 277-284. doi: 10.1007/s12583-012-0253-6

[Abstract](786) [FullText HTML] (196) [PDF 301KB](44)

Abstract:
Archean greenstone belts and their possible inclusion of fragments of ophiolites is an important research subject, since it is correlated with the nature of early oceanic crust, and can yield information on the nature of early planetary lithospheres, the origin of TTG (tonalite-trondhjemite-granodio...

Analysis of Slope Stability with Dynamic Overloading from Earthquake

Ti Zhao, Jinzhong Sun, Bin Zhang, Cheng Li

2012, 23(3): 285-296. doi: 10.1007/s12583-012-0257-2

[Abstract](956) [FullText HTML] (215) [PDF 1425KB](41)

Abstract:
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 s...

Paleoenvironmental Changes in the Northern Okinawa Trough since 25 ka BP: REE and Organic Carbon Evidence

Zhaokai Xu, Tiegang Li, Qingyun Nan, Xinke Yu, Anchun Li, Jinyong Choi

2012, 23(3): 297-310. doi: 10.1007/s12583-012-0254-5

[Abstract](516) [FullText HTML] (161) [PDF 505KB](46)

Abstract:
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...

Conodont Biostratigraphy and Evolution across Permian–Triassic Boundary at Yangou Section, Leping, Jiangxi Province, South China

Dongying Sun, Jinnan Tong, Yanlin Xiong, Li Tian, Hongfu Yin

2012, 23(3): 311-325. doi: 10.1007/s12583-012-0255-4

[Abstract](590) [FullText HTML] (206) [PDF 1175KB](42)

Abstract:
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 (沿沟),Leping (乐平) County,Jiangxi (江西) Province,South China. On the basis of the distributions of the identified s...

Stability of Huangtupo Riverside Slumping Mass II# under Water Level Fluctuation of Three Gorges Reservoir

Xinli Hu, Huiming Tang, Changdong Li, Renxian Sun

2012, 23(3): 326-334. doi: 10.1007/s12583-012-0259-0

[Abstract](838) [FullText HTML] (254) [PDF 657KB](41)

Abstract:
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 affe...

Health Risk Assessment of Groundwater Pollution—A Case Study of Typical City in North China Plain

Mei Yang, Yuhong Fei, Yiwen Ju, Zhen Ma, Huaqi Li

2012, 23(3): 335-348. doi: 10.1007/s12583-012-0260-7

[Abstract](718) [FullText HTML] (175) [PDF 373KB](47)

Abstract:
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 pathw...

Approach to the Relation of Mutual-Feed Joint-Variation in Groundwater Management Model

Ping Li, Wenxi Lu, Menggui Jin, Qingchun Yang

2012, 23(3): 349-358. doi: 10.1007/s12583-012-0261-6

[Abstract](844) [FullText HTML] (116) [PDF 363KB](27)

Abstract:
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 mutua...

Yinggehai Basin Gas Exploration: Comparison with Jiyang Depression

Zhifeng Wan, Bin Xia, Baofeng Lü, Zhourong Cai, Weiliang Liu

2012, 23(3): 359-372. doi: 10.1007/s12583-012-0256-3

[Abstract](794) [FullText HTML] (188) [PDF 759KB](10)

Abstract:
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 syst...

Measuring Internal Velocity of Debris Flows by Temporally Correlated Shear Forces

Fangqiang Wei, Hongjuan Yang, Kaiheng Hu, Sergey Chernomorets

2012, 23(3): 373-380. doi: 10.1007/s12583-012-0258-1

[Abstract](428) [FullText HTML] (76) [PDF 591KB](36)

Abstract:
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 ...