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。
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 deter- mined 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.
出处
《地质找矿论丛》
CAS
CSCD
2015年第3期392-399,共8页
Contributions to Geology and Mineral Resources Research
基金
国外矿产资源风险勘查资金项目(编号:201210A06200207
12120115068301)资助
关键词
水系沉积物
粒级段
样品粒级
阿巴伊拉
巴西
river sediments
grain size range
particle size fraction of sample
Abaira
Brazil
