A lognormal distribution of metal resources
Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences
By: Donald A. Singer
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Abstract
For national or global resource estimation of frequencies of metals, a lognormal distribution has commonly been recommended but not adequately tested. Tests of frequencies of Cu, Zn, Pb, Ag, and Au contents of 1 984 well-explored mineral deposits display a poor fit to the lognormal distribution. When the same metals plus Mo, Co, Nb2O3, and REE2O3 are grouped into 19 geologically defined deposit types, only eight of the 73 tests fail to be fit by lognormal distribution, and most of those failures are in two deposit types suggesting a problem with those types. Estimates of the mean and standard deviation of each of the metals in each of the deposit types are provided for modeling.
Suggested Citation
Singer, D.A., 2011, A lognormal distribution of metal resources: Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences, v. 36, no. 2, p. 201-208.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A lognormal distribution of metal resources |
| Series title | Diqiu Kexue - Zhongguo Dizhi Daxue Xuebao/Earth Science - Journal of China University of Geosciences |
| Volume | 36 |
| Issue | 2 |
| Year Published | 2011 |
| Language | English |
| Publisher | China University of Geosciences |
| Contributing office(s) | Western Mineral and Environmental Resources Science Center |
| Description | 8 p. |
| First page | 201 |
| Last page | 208 |