Quantitative Geology and Geostatistics

Geostatistics Wollongong’ 96

Volume 2

Editors: Baafi, E. Y., Schofield, N.A. (Eds.)

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About this book

In diamond alluvial deposits, the information about the spatial distribution of stone size is of crucial importance for the quantitative characterisation of the different areas of the deposit. In fact, the value of the diamond reserves depends strongly on the distribution of stone sizes: between two areas with the same grade, the most valuable is the one with larger stones. The geological genesis of the mineralization, related with the transport and deposition of stones in trapsites, can create separated spatial areas, corresponding to different stone size. To characterise these distinct areas, the non smooth transitions between them should be accounted for, in the estimation of internal properties. An extended version of zonal control of geostatistical estimation (Soares et ai, 1995) proposed in this paper, aims to characterising the classes of size histogram for each geological unit, avoiding the smooth effect. For this purpose the morphology of each geological unit is obtained by using two distinct criteria: i) first, the points of each unit are classified according to the local and global probabilities of belonging to each unit (Soares, 1992); ii) in a second classification, the optimization technique of Simulated Annealing is used to rearrange the pre-classified points in order to impose, in the final morphological maps, the spatial variability of experimental samples (Goovaerts, 1994). A case study of a diamond alluvial deposit with two geological units with distinct stone size histograms is presented.

Reviews

`... I feel the quality of the papers is good to excellent in both content and presentation. ... this collection represents trends in research and practice. It is therefore an invaluable addition to a collection of references on geostatistics.'
Mathematical Geology, 31:6 (1999)

Buy this book

Hardcover $689.00
price for USA
  • ISBN 978-0-7923-4496-4
  • Free shipping for individuals worldwide
  • Usually dispatched within 3 to 5 business days.
Softcover $689.00
price for USA
  • ISBN 978-94-010-6415-6
  • Free shipping for individuals worldwide
  • Usually dispatched within 3 to 5 business days.
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Bibliographic Information

Bibliographic Information
Book Title
Geostatistics Wollongong’ 96
Book Subtitle
Volume 2
Editors
  • E. Y. Baafi
  • N.A. Schofield
Series Title
Quantitative Geology and Geostatistics
Series Volume
8
Copyright
1997
Publisher
Springer Netherlands
Copyright Holder
Kluwer Academic Publishers
Hardcover ISBN
978-0-7923-4496-4
Softcover ISBN
978-94-010-6415-6
Series ISSN
0924-1973
Edition Number
1
Number of Pages
XI, 665
Topics