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Consequences of fractal grade distribution for bulk sorting of a copper porphyry deposit

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Date

2015

Authors

Coghill, Peter
Miljak, D
Williams, Elizabeth

Journal Title

Journal ISSN

Volume Title

Publisher

Elsevier

Abstract

We show the presence of fractal ordering of copper grade in bore core data at short range in the Cadia Ridgeway porphyry deposit and measure its persistence after mining by monitoring the output of the mine every 20 s for a month using a large scale, zero field magnetic resonance sensor. A simple model is used to investigate this connection and its consequences for sorting of the ore. Fractal distributions, and their associated power laws, have two features highly favourable for segregating ore: a large proportion of low-grade pods and the large scale spatial clustering of grade

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Keywords

Citation

URI

http://hdl.handle.net/1885/153268

Collections

ANU Research Publications

Source

Geoscience Frontiers (Previously Earth Science Frontiers)

Type

Journal article

Book Title

Entity type

Access Statement

Open Access

License Rights

DOI

10.1016/j.gsf.2014.09.003

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01_Coghill_Consequences_of_fractal_grade_2015.pdf (709.42 KB)

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