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dc.contributor.authorGhannadpour, Seyed Saeed
dc.contributor.authorHezarkhani, A.
dc.date.accessioned2017-06-23T03:01:50Z
dc.date.available2017-06-23T03:01:50Z
dc.date.created2017-06-19T03:39:35Z
dc.date.issued2017
dc.identifier.citationGhannadpour, S.S. and Hezarkhani, A. 2017. Comparing U-statistic and nonstructural methods for separating anomaly and generating geochemical anomaly maps of Cu and Mo in Parkam district, Kerman, Iran. Carbonates Evaporites. 32 (2): pp. 155-166.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/53908
dc.identifier.doi10.1007/s13146-015-0282-1
dc.description.abstract

© 2015, Springer-Verlag Berlin Heidelberg.In applied geochemistry, obtaining quantitative descriptions of geochemical patterns and identifying geochemical anomalies are important. To identify and separate geochemical anomalies, several statistical methodologies (nonstructural and structural) are presented by researchers. In this study, four nonstructural methods including threshold assessment method based on median and standard deviation, median absolute deviation (MAD), P.N product and Sinclair’s method are selected first and then U-statistic is considered as a structural method to compare their performance. Subsequently, the best method is used to assess prospective areas of Parkam district. Results show that P.N and Sinclair’s methods are not always efficient. MAD method reduced the background well and roughly increased the correlation factor of points. However, U-statistic method includes both mentioned advantages meaning in addition to reducing outlier data effect, it regularizes anomalous values and also their dispersion is reduced significantly. It is possible to determine anomaly areas according to anomalous samples positioning so that denser areas are more important. Finally, lithogeochemical map of study area is generated for copper and molybdenum. In this map, the Cu mineralization which is delineated by this method is closely associated with the defined potassic alteration zone (according to alteration map of the study area), and also, the delineated Mo mineralization is exactly associated with the phyllic alteration and is spatially conformable with the zone defined for it.

dc.publisherSpringer
dc.titleComparing U-statistic and nonstructural methods for separating anomaly and generating geochemical anomaly maps of Cu and Mo in Parkam district, Kerman, Iran
dc.typeJournal Article
dcterms.source.volume32
dcterms.source.number2
dcterms.source.startPage155
dcterms.source.endPage166
dcterms.source.issn0891-2556
dcterms.source.titleCarbonates Evaporites
curtin.departmentDept of Mining Eng & Metallurgical Eng
curtin.accessStatusFulltext not available


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