Empirical calibration of the clinopyroxene–garnet magnesium isotope geothermometer and implications     

Wang-Ye Li  Fang-Zhen Teng  Yilin Xiao  Hai-Ou Gu  Xiang-Ping Zha  Jian Huang 《Contributions to Mineralogy and Petrology》2016,171(7):61

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Effects of different leaching water sources and volume on soil salt and chemical properties in a soil mesocosm experiment     

Hua Zhang  Linhong Wu  Wei Gu  Yingjun Xu  Jun Tao 《Environmental Earth Sciences》2016,75(8):667

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Hot dark spot index method based on multi-angular remote sensing for leaf area index retrieval     

Qingyan Meng  Chunmei Wang  Xingfa Gu  Yunxiao Sun  Ying Zhang  Rumiana Vatseva  Tamas Jancso 《Environmental Earth Sciences》2016,75(9):732

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Quantifying soil erosion effects on soil productivity in the dry-hot valley,southwestern China   总被引：1，自引：0，他引：1  

Xingwu Duan  Bing Liu  Zhijia Gu  Li Rong  Detai Feng 《Environmental Earth Sciences》2016,75(16):1164

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Assessment of heavy metal contamination in water body and riverbed sediments of the Yanghe River in the Bohai Sea,China     

Cuiping Kuang  Yunchi Shan  Jie Gu  Haibing Shao  Wanlei Zhang  Yongfeng Zhang  Jiabo Zhang  Huixin Liu 《Environmental Earth Sciences》2016,75(14):1105

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Indium Mineralization in Copper–Tin Stratiform Skarn Ores at the Saishitang–Rilonggou Ore Field,Qinghai, Northwest China          下载免费PDF全文

Jianping Liu  Xiangping Gu  Yongjun Shao  Yuzhou Feng  Jianqing Lai 《Resource Geology》2016,66(4):351-367

The Saishitang–Rilonggou Ore Field (SROF), which includes the Saishitang, Tongyugou, and Rilonggou ore deposits as well as other scattered occurrences, is located in the Elashan region in Qinghai Province, and is a significant Cu–Sn ore field in NW China. These ores are hosted in stratiform skarn deposits with the main metals being Cu and Sn, as well as Zn, Pb, Au, Ag, and trace elements (e.g. Ga, Ge, Se, and In). Bulk‐rock geochemical analyses of 50 ore samples from the three deposits show that In contents in the Saishitang deposit range from 0.03 to 39 ppm (average 12.7 ppm, n = 19), with 1000 In/Zn values that vary from >0.01 to 29.83 (average 4.29). Indium contents in the Tongyugou deposit vary from 7.51 to 131 ppm (average 28.37 ppm, n = 13), with 1000 In/Zn values from 0.74 to 48 (average 17.55). Finally, indium contents in the Rilonggou deposit vary from 0.73 to 120 ppm (average 36.15 ppm, n = 18), with 1000 In/Zn values from 0.33 to 47 (average 8.52). Indium is hosted mainly in sphalerite, while some other In‐bearing minerals (e.g., roquesite, stannoidite, and stannite) are present locally within the ore field. Roquesite, which replace or fill bornite, occurs in bornite‐rich ores in the Saishitang deposit. This is the first reported Chinese locality of roquesite. Based on previously reported Zn resources, a total of 136 tons of In is calculated to be hosted in the SROF, with 30, 66, and 40 tons of In attributed to the Saishitang, Tongyugou, and Rilonggou deposits, respectively. The differences in indium contents among the deposits and their respective geological histories and characteristics suggest that the origin of indium relates to volcanogenic metallogenesis in an early Permian volcano‐sedimentary basin. Based on the evaluation of In resources, future mining operations should include the recovery of indium in the Tongyugou and Rilonggou deposits.  相似文献   

Modelling the upwelling offthe east Hainan Island coast in summer 2010     

白鹏  顾艳镇  李培良  吴克俭 《中国海洋湖沼学报》2016,34(6):1358-1373

A synoptic-scale upwelling event that developed off the east coast of the Hainan Island(EHIU) in the summer of 2010 is defi ned well via processing the Moderate Resolution Imaging Spectroradiometer(MODIS) sea surface temperature(SST) data. The Regional Ocean Modeling System(ROMS) with high spatial resolution has been used to investigate this upwelling event. By comparing the ROMS results against tide station data, Argo fl oat profi les and MODIS SST, it is confi rmed that the ROMS reproduces the EHIU well. The cooler-water core(CWC) distinguished by waters(27) 27.5°C in the EHIU, which occurred in the east Qiongzhou Strait mouth area and was bounded by a high temperature gradient, was the focus of this paper. Vertical structure of the CWC suggests that interaction between the westward fl ow and the bathymetry slope played a signifi cant role in the formation of CWC. Numerical experiments indicated that the westward fl ow in the Qiongzhou Strait was the result of tidal rectifi cation over variable topography(Shi et al., 2002), thus tides played a critical role on the development of the CWC. The negative wind stress curl that dominated the east Qiongzhou Strait mouth area suppressed the intensity of the CWC by 0.2–0.4°C. Further, nonlinear interaction between tidal currents and wind stress enhanced vertical mixing greatly, which would benefi t the development of the CWC.  相似文献   

ADV-based estimates of sediment settling velocity on the shelf of the Yellow and East China seas: evidence of marked seasonal and intra-tidal variations     

Changwei Bian  Xinyan Mao  Wensheng Jiang  Yanzhen Gu 《Geo-Marine Letters》2015,35(1):53-60

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Flood frequency under the influence of trends in the Pearl River basin,China: changing patterns,causes and implications          下载免费PDF全文

Qiang Zhang  Xihui Gu  Vijay P. Singh  Mingzhong Xiao  Chong‐Yu Xu 《水文研究》2015,29(6):1406-1417

Using a nonstationary flood frequency model, this study investigates the impact of trends on the estimation of flood frequencies and flood magnification factors. Analysis of annual peak streamflow data from 28 hydrological stations across the Pearl River basin, China, shows that: (1) northeast parts of the West and the North River basins are dominated by increasing annual peak streamflow, whereas decreasing trends of annual peak streamflow are prevailing in other regions of the Pearl River basin; (2) trends significantly impact the estimation of flood frequencies. The changing frequency of the same flood magnitude is related to the changing magnitude or significance/insignificance of trends, larger increasing frequency can be detected for stations with significant increasing trends of annual peak streamflow and vice versa, and smaller increasing magnitude for stations with not significant increasing annual peak streamflow, pointing to the critical impact of trends on estimation of flood frequencies; (3) larger‐than‐1 flood magnification factors are observed mainly in the northeast parts of the West River basin and in the North River basin, implying magnifying flood processes in these regions and a higher flood risk in comparison with design flood‐control standards; and (4) changes in hydrological extremes result from the integrated influence of human activities and climate change. Generally, magnifying flood regimes in the northeast Pearl River basin and in the North River basin are mainly the result of intensifying precipitation regime; smaller‐than‐1 flood magnification factors along the mainstream of the West River basin and also in the East River basin are the result of hydrological regulations of water reservoirs. Copyright © 2014 John Wiley & Sons, Ltd.  相似文献   

Reply to Comment on “Underwater Explosion (UWE) Analysis of the ROKS Cheonan Incident” by K. S. Kim     

So Gu Kim  Yefim Gitterman 《Pure and Applied Geophysics》2013,170(3):479-484

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