| 巴西巴伊亚州阿巴伊拉地区水系沉积物采样粒级方法试验 |
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| 引用本文： | 沈莽庭,徐鸣,姚春彦,刘君安,陈小龙.巴西巴伊亚州阿巴伊拉地区水系沉积物采样粒级方法试验[J].地质找矿论丛,2015,30(3):392-399. |
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| 作者姓名： | 沈莽庭 徐鸣 姚春彦 刘君安 陈小龙 |
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| 作者单位： | 南京地质调查中心, 南京 210016;南京地质调查中心, 南京 210016;南京地质调查中心, 南京 210016;南京地质调查中心, 南京 210016;湖南省有色地质勘查二四七队, 长沙 430100 |
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| 基金项目： | 国外矿产资源风险勘查资金项目(编号:201210A06200207,12120115068301)资助。 |
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| 摘 要： | 巴西巴伊亚州阿巴伊拉地区属巴西热带干湿润季风高原中低山丘陵景观区之一。通过开展野外水系沉积物采样粒度试验和室内分析及数据处理,确定适合该景观区内1∶10万水系沉积物测量样品最佳粒级为-10目~+60目,以此粒级圈定的成矿元素异常强度较高,且较好地反映出试验区成矿元素地球化学异常。该试验成果可供巴西同类地区工作中借鉴使用。
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| 关 键 词： | 水系沉积物 粒级段 样品粒级 阿巴伊拉 巴西 |
| 收稿时间： | 2014/8/15 0:00:00 |
| 修稿时间： | 2015/7/29 0:00:00 |
Grain size test for sampling media from river sediments in Arbari area, Bahia state, Brazil |
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| SHEN Mangting,XU Ming,YAO Chunyan,LIU Jun''an and CHEN Xiaolong.Grain size test for sampling media from river sediments in Arbari area, Bahia state, Brazil[J].Contributions to Geology and Mineral Resources Research,2015,30(3):392-399. |
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| Authors: | SHEN Mangting XU Ming YAO Chunyan LIU Jun'an and CHEN Xiaolong |
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| Institution: | Nanjing Geological Survey Centre, Nanjing 210016, Jiangsu, China;Nanjing Geological Survey Centre, Nanjing 210016, Jiangsu, China;Nanjing Geological Survey Centre, Nanjing 210016, Jiangsu, China;Nanjing Geological Survey Centre, Nanjing 210016, Jiangsu, China;Hunan Non-ferrous Metal Geological Team 247, Changsha 420100, Hunan, China |
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| Abstract: | Abaira area in Bahia state is one of the medium-low mountainous-hilly landscapes with dry-wet monsoon in Brazil. Through field test and Lab procession of the data -10 mesh~+60 mesh are determined to be the optimum grain sizes for river sediment survey at scale 1:100000. By means of such grain size sampling stronger anomlies are lineated and geochemical anomly of the ore-forming elements shown clearly thus the sampling grain size can be populated in similar areas in Brazil. |
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| Keywords: | river sediments grain size range particle size fraction of sample Abaira Brazil |
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