Kriging by partition: case of Ciurug Quartz Gold Vein

International Conference on Earth Science, Mineral, and Energy

地球科学;矿业工程;能源学

Amri, N.A.^1,2 ; Hartono^2 ; Siri, H.T.^2

Magister of Mining Engineering, Faculty of Mineral Technology Universitas Pembangunan Nasional Veteran Yogyakarta, SWK 104 CondongCatur, Yogyakarta

55283, Indonesia^1

Mining Engineering Department, Faculty of Mineral Technology Universitas Pembangunan Nasional Veteran Yogyakarta, SWK 104 CondongCatur, Yogyakarta

55283, Indonesia^2

关键词: Accuracy prediction;    Determining method;    Geo-statistics;    Gold distribution;    Ordinary kriging;    Ordinary least squares;    Partitioning methods;    Semivariograms;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/212/1/012056/pdf
DOI  :  10.1088/1755-1315/212/1/012056

来源: IOP

【 摘 要 】

This paper presents the calculation of reserves gold distribution using ordinary kriging with regional partition on the clustering of distribution zone base. The calculations of resources or reserves in mining industry depend, among other things on sample point accuracy prediction. As a part of geostatistics,kriging is a good and unbiased predictor which is based on robust semivariogram, and fitting here using ordinary least squares (OLS). However, this need foresight in determining method or pattern of sorts which is more appropriate to be used. Based on the partitioning method, it found that gold grade average is higher than the original base as shown in each of the mean value.