Abstract
This is a case study illustrating the application of geostatistics to a vein-type nickel deposit. Data are defined in relation to the structural aspects of the geology of the deposit and variograms are calculated for thickness and nickel accumulation. Variogram models are validated by the back estimation technique.
A shape preserving spline surface is fitted to the mid-points of drill hole intersections with the orebody and this surface is used to control subsequent estimation. Various drilling densities are evaluated, global reserves are calculated and orebody shape and location are estimated on various horizontal planes. Geostatistical estimates of reserves and orebody shape are compared with the known orebody in a mined area.
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References
Dowd, P.A. (1986) — “Geometrical and Geological Controls in Geostatistical Estimation and Orebody Modelling” — 19th APCOM. Pensylvannia State University, April 1986. Pub. A.I.M.E. pp. 81–94.
Dowd, P.A. and Scott, I.R. (1986) — “Geostatistics in the Stratigraphic Orebodies at Mt. Isa” — Proceedings of the 13th Commonwealth Mining and Metallurgical Congress, Singapore, May 1986, Vol. 1 — Geology, pp 27–36. Pub. Australasian Institute of Mining and Metallurgy, Melbourne, Australia.
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© 1987 D. Reidel Publishing Company, Dordrecht, Holland
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Dowd, P.A., Milton, D.W. (1987). Geostatistical Estimation of a Section of the Perseverance Nickel Deposit. In: Matheron, G., Armstrong, M. (eds) Geostatistical Case Studies. Quantitative Geology and Geostatistics, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3383-5_3
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DOI: https://doi.org/10.1007/978-94-009-3383-5_3
Publisher Name: Springer, Dordrecht
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