Mineral resource and ore reserve estimation : the AusIMM by A C Edwards; Australasian Institute of Mining and

By A C Edwards; Australasian Institute of Mining and Metallurgy

Show description

Read or Download Mineral resource and ore reserve estimation : the AusIMM guide to good practice PDF

Similar nonfiction_12 books

Transient Phenomena in Electrical Power Systems. Problems and Illustrations

Temporary Phenomena in electricity platforms: difficulties and Illustrations offers with the means of calculating different temporary phenomena in electricity platforms. Concrete examples are given to teach the nature of the temporary techniques, and the order of significance is derived in a few regular instances.

Bodies and Culture: Discourses, Communities, Representations, Performances

Our bodies and tradition is a set of up to date interdisciplinary examine on our bodies from rising students within the humanities and social sciences disciplines that addresses concerns with regards to a variety of historic and modern contexts, theories, and strategies. analyzing the variety and features of our bodies, this quantity makes a speciality of the function of tradition in shaping kinds and conceptions of the corporeal.

Extra info for Mineral resource and ore reserve estimation : the AusIMM guide to good practice

Example text

Contingency RESOURCES AND RESERVES There are many approaches to the inclusion of a contingency. The contingency may be a valid estimate of costs that will arise subsequent to the study or it may simply be a hedge against improper or incomplete estimates. Whether or not the contingency is a simple percentage or a detailed estimate, it must nevertheless be defendable and explainable. Resource estimate This should confirm the security of tenure in the project area including the tenement position, land ownership, compensation for surface rights, etc.

If management does not fully understand and have confidence in the estimate, then the project has a very shaky foundation. Journel, A G and Huijbregts, C J, 1978. Mining Geostatistics, 600 pp (Academic Press: London). Krige, D G, 1997. Block Kriging and the Fallacy of Endeavouring to Reduce or Eliminate Smoothing, Proceedings of the Regional APCOM, Moscow. Lane, K F, 1988. The Economic Definition of Ore, 149 pp (Mining Journal Books: London). Parker, H, 1998. Personal communication. Pitard, F F, 1993.

How will contract mining costs and equipment leasing costs affect cut-off grades? Will these be treated as operating costs or capital costs? Surface/underground interface By the time the feasibility study is launched it should be obvious whether the orebody will be mined by surface or underground methods. However, it is not uncommon for mineral structures to start near surface and continue to depth, raising the possibility that both surface and underground mining methods will ultimately be required.

Download PDF sample

Rated 4.34 of 5 – based on 3 votes