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2013年  24卷  第1期

Fractals and Spatial Statistics of Point Patterns
Agterberg Frederik P
2013, 15(1). doi: 10.1007/s12583-013-0305-6
The relationship between fractal point pattern modeling and statistical methods of parameter estimation in point-process modeling is reviewed. Statistical estimation of the cluster fractal dimension by using Ripley’s K-function has advantages in comparison with the more commonly used methods of box-counting and cluster fractal dimension estimation because it corrects for edge effects, ...
Petromagnetic Properties of Granulite-Facies Rocks from the Northern North China Craton: Implications for Magnetic and Evolution of the Continental Lower Crust
Liu, QS (Liu, Qingsheng) ; Wang, HC (Wang, Hongcai) ; Zheng, JP (Zheng, Jianping); Zeng, QL (Zeng, Qingli) ; Liu, Qingsong)
2013, 15(1). doi: 10.1007/s12583-013-0314-5
This paper studies magnetic properties and composition of granulite-facies rocks of both the Neogene and Archean continental lower crust in the Neogene xenolith-bearing Hannuoba () alkaline basalt and the exposed lower crustal section in the Archean Huai’an terrain (Wayaokou ()-Manjinggou ()...
Zircon Hf Isotope of Yingfeng Rapakivi Granites from the Quanji Massif and similar to 2.7 Ga Crustal Growth
Chen, NS (Chen, Nengsong); Gong, SL (Gong, Songlin); Xia, XP (Xia, Xiaoping) ; Geng, HY (Geng, Hongyan); Wang, L (Wang, Lu); Sun, M (Sun, Min) ; Kusky, TM (Kusky, Timothy M.)
2013, 15(1). doi: 10.1007/s12583-013-0309-2
The Quanji () Massif is located in the Northwest China, which is interpreted as a micro-continent that is composed of metamorphic basement and stable cover strata. There are some controversies of genetic relationship between the Quanji Massif and the major cratons in China. In this study, we obtained in situ zircon U-Pb and Hf isotopic compositions of the Yingfeng () rapakivi granites from the northwest ...
Carbon and Oxygen Isotope Stratigraphy of the Oxfordian Carbonate Rocks in Amu Darya Basin
Zheng Rongcai; an Yanghui P; Zhao Can; Wu Lei; Chen Renjin; Yang Rui
2013, 15(1). doi: 10.1007/s12583-013-0315-4
Based on the detailed research on petrologic and geochemical characteristics of deposition and diagenesis of Oxfordian carbonate rocks in Amu Darya Basin, Turkmenistan, carbon and oxygen isotopes were analyzed. The results show that the paleoenvironmental evolution reflected by the samples ...
Compressibility and Structural Properties of Jadeite, NaAlSi2O6 at High Pressure
Wu, XL (Wu, Xiuling); Fan, XY (Fan, Xiaoyu); Qin, F (Qin, Fei); Meng, DW (Meng, Dawei) ; Zhang, XL (Zhang, Xiaoling); Chen, L (Chen, Long); Liu, WP (Liu, Weiping); Zheng, JP (Zheng, Jianping)
2013, 15(1). doi: 10.1007/s12583-013-0311-8
The structural properties of jadeite at high pressures (0.000 1-30 GPa) are investigated using plane-wave pseudopotential density functional theory method. As a function of pressure, the monoclinic cell parameters were calculated and the compressibility coefficients are 0.002 6, 0.002 3 and 0.002 6 GPa(-1), respectively. The bond length, bond angle and distortion
Biotransformation of Earthworm Activity on Potassium-Bearing Mineral Powder
Zhu, XL (Zhu, Xiaoling); Lian, B (Lian, Bin); Yang, X (Yang, Xue); Liu, CQ (Liu, Congqiang)[; Zhu, LJ (Zhu, Lijun)
2013, 15(1). doi: 10.1007/s12583-013-0313-6
This study analyzes the biotransformation of earthworms on K in potassium-bearing mineral powder (PBMP) under different PBMP recruitments. A mixture of PBMP (10% to 60% mass fraction) and decaying cow dung was used as feed for breeding the earthworms to study the potassium-releasing ability of earthworms on PBMP in soil. The mixture containing 20% and 30% PBMP ...
Sequence Stratigraphy and Sedimentary Facies in the Lower Member of the Permian Shanxi Formation, Northeastern Ordos Basin, China
Du, W (Du, Wei); Jiang, ZX (Jiang, Zaixing); Zhang, Y (Zhang, Ying); Xu, J (Xu, Jie)
2013, 15(1). doi: 10.1007/s12583-013-0308-3
The Lower Permian Shanxi () Formation is one of the main gas-bearing stratigraphic units in northeastern Ordos () Basin, China. Based on an integrated investigation of well logs, cores, and outcrop, we delineated the sedimentary facies of the lower member of the Shanxi Formation and divided the succession into three third-order sequences from base to top as SQ1, SQ2, and SQ3.
Basin-Scale Sand Deposition in the Upper Triassic Xujiahe Formation of the Sichuan Basin, Southwest China: Sedimentary Framework and Conceptual Model
Tan, XC (Tan, Xiucheng); Xia, QS (Xia, Qingsong); Chen, JS (Chen, Jingshan); Li, L (Li, Ling); Liu, H (Liu, Hong); Luo, B (Luo, Bing); Xia, JW (Xia, Jiwen)[; Yang, JJ (Yang, Jiajing)
2013, 15(1). doi: 10.1007/s12583-013-0312-7
The Upper Triassic Xujiahe () Formation in the Sichuan () Basin, Southwest China is distinctive for the basin-scale sand deposition. This relatively rare sedimentary phenomenon has not been well interpreted. Here we addressed this issue by discussing sedimentary framework and conceptual model. Analysis of sedimentary setting implied that the basin received transgression during the deposition. It had multiple provenance supplies and river networks, as being surrounded by old-lands in multiple directions including the north,
The Influence of Localized Slumping on Groundwater Seepage and Slope Stability
Sun, HY (Sun, Hongyue); Zhong, J (Zhong, Jie); Zhao, Y (Zhao, Yu); Shen, SJ (Shen, Shuijin); Shang, YQ (Shang, Yuequan)
2013, 15(1). doi: 10.1007/s12583-013-0307-4
Transverse cracks and localized slumps frequently occur within loose deposits slopes when the slope base is removed either from natural or manmade processes. Although the contribution of rainfall to the slope failures was intensely discussed, the influence of localized slumps on hydrogeological conditions has received less attention. Usually, loose ...
Impacts of Human Activities on the Occurrence of Groundwater Nitrate in an Alluvial Plain: A Multiple Isotopic Tracers Approach
Pang, ZH (Pang, Zhonghe); Yuan, LJ (Yuan, Lijuan); Huang, TM (Huang, Tianming); Kong, YL (Kong, Yanlong); Liu, JL (Liu, Jilai); Li, YM (Li, Yiman)
2013, 15(1). doi: 10.1007/s12583-013-0310-9
Nitrate pollution is a severe problem in areas with intensive agricultural activities. This study focuses on nitrate occurrence and its constraints in a selected alluvial fan using chemical data combined with environmental isotopic tracers (O-18, H-3, and N-15). Results show that groundwater nitrate in the study area is as high as 258.0 mg/L (hereafter NO3-) with ...
Automated Rock Detection and Shape Analysis from Mars Rover Imagery and 3D Point Cloud Data
Di, KC (Di, Kaichang); Yue, ZY (Yue, Zongyu); Liu, ZQ (Liu, Zhaoqin); Wang, SL (Wang, Shuliang)
2013, 15(1): 0-0. doi: 10.1007/s12583-013-0316-3
A new object-oriented method has been developed for the extraction of Mars rocks from Mars rover data. It is based on a combination of Mars rover imagery and 3D point cloud data. First, Navcam or Pancam images taken by the Mars rovers are segmented into homogeneous objects with a mean-shift algorithm. Then, the objects in the segmented images are
The Drivers of Land Use Change in the Migration Area, Three Gorges Project, China: Advances and Prospects
Ni, JP (Ni, Jiupai); Shao, JA (Shao, Jing’an)
2013, 15(1): 0-0. doi: 10.1007/s12583-013-0306-5
This paper reviewed existing literatures on land use change since the demonstration phase of the Three Gorges Project and found that reservoir inundation, migration resettlement, urban relocation, and post-supporting construction were first paid more attention to, when analyzing the driving forces of land use change in the migration area. However, at the post-migration period (the end of migration resettlement), above-mentioned drivers had not obviously driven land use change, but the evolutions of ”migration demands” replacing ..