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首页> 外文会议>第12届国际数学地质大会 >Data from Stream Sediment Survey Mapped at Three Scales Based Quantitative Assessment of Platium Anomalies in Eastern Yunnan Province, Southwestern China Using Universal Kriging
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Data from Stream Sediment Survey Mapped at Three Scales Based Quantitative Assessment of Platium Anomalies in Eastern Yunnan Province, Southwestern China Using Universal Kriging

机译：基于通用克里格法的云南省东部东部铂盐异常定量评估的三个尺度的河流泥沙调查数据

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Many variables of geosciences for mineral assessment usually are regionalized ones that are of both structural and random components. Spatial heterogeneity of geological and/or mineral body is defined as spatial variability which can be effectively characterized by spatial geostatistics (Pan, 2001). In this paper Universal Kriging is used for studying the variability of Pt concentration and for delineating as well as assessing Pt anomalies based on data from the stream sediment survey mapped at three scales in eastern Yunnan Province, southwestern China. The results indicate that there are differences between the variability and controlling factors of Pt concentration at large scale and middle-small scale. The former is controlled by strata and lithology; the latter is controlled by multi-trends of faults. The telescoped Pt anomalies at three scales are the best target areas for searching for Pt deposits.
机译：用于矿物评估的地球科学的许多变量通常是区域性变量，具有结构性和随机性。地质和/或矿体的空间异质性被定义为空间变异性，可以通过空间地统计学有效地表征其特征（Pan，2001）。本文采用通用克里金法研究了Pt浓度的变异性，并基于云南省东部云南省三个规模的河流沉积物调查数据，描绘了Pt异常并评估了Pt异常。结果表明，在大中小范围内，Pt浓度的变异性和控制因素之间存在差异。前者受地层和岩性控制。后者受多种趋势的控制。三种规模的Pt望远镜异常是寻找Pt矿床的最佳目标区域。

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