Providing the bivariate anomaly map of Cu–Mo and Pb–Zn using combination of statistic methods in Parkam district, Iran

Delineation of geochemical anomalies for mineral exploration using combining U-statistic method and fractal technique: U-N and U-A models

“…The latter includes approaches which consider sampling point coordinates and their spatial relation in the estimation of anomalous areas. As the examples of structural or objective methods, techniques like discriminant analysis, fractal models, fuzzy clustering and U-spatial statistic can be noted (Kramar 1995; Cheng et al 2000; Goncalves et al 2001; Li et al 2003; Afzal et al 2010, 2011; Zuo 2011; Ghannadpour and Hezarkhani 2016a, 2016b, 2018, 2019, 2020).…”

“…One of the advantages of this method is ability of the U-statistic method in combining with other methods. Because it devotes a new value to each sample as U value (Ghannadpour et al 2017b; Ghannadpour and Hezarkhani 2018).…”

“…Parkam is selected as case study and in order to evaluate the proposed combined U-N and U-A models because this area and its condition (sample type, their grid, alteration map, etc.) is very suitable for validation of methods performance based on previous studies (Ghannadpour et al 2015b, 2017a; Ghannadpour and Hezarkhani 2018, 2020). It should be noted that sampling in Parkam was superficial and the samples located in sediments were collected either from rock outcrops or from trenches having access to rock.…”