The later papers discuss the variations on the lognormal prompted by Sichel's
revivavl of interest in the late 1980s. The actual lognormal basis is not
discussed in those papers.
I am tracking down a copy of my original paper to add the mathematical
addenda on the 1987 paper and will post to the list when it is available.
Isobel
http://www/kriging.com
Eric PIRARD <[EMAIL PROTECTED]> wrote:
Hi Peter,
Additional work has been done by Sichel and Kleingeld more recently.
They should be more available than the original one :
Comparative study of three frequency-distribution models for use in ore
evaluation
Sichel, H S; Kleingeld, W J; Assibey-Bonsu, W J S Afr Inst Min Metall V92, N4,
April 1992, P9199 New generalized model of observed ore value distributions H.
S. Sichel, C. E. Dohm 8c W. J. Kleingeld, Transactions - InsXitution of Mining
& Metallurgy, Section A, 104(May- Aug), 1995, pp AllS-A123
New generalized model of observed ore value distributions
Sichel, H.S. / Dohm, C.E. / Kleingeld, W.J.,
International Journal of Rock Mechanics and Mining Sciences & Geomechanics
Abstracts, Jan 1996
Eric PIRARD /.
UNIVERSITE DE LIEGE (ULg)
ArGEnCo Dpt
GEMME - Georesources & Mineral Imaging
Sart Tilman B52
4000 Liège (Belgium)
Tél. : +32-4-3669528 Fax.: +32-4-3669520
http://www.mica.ulg.ac.be + + To post a message to the list, send it to
[email protected] + To unsubscribe, send email to majordomo@ jrc.it with no
subject and "unsubscribe ai-geostats" in the message body. DO NOT SEND
Subscribe/Unsubscribe requests to the list + As a general service to list
users, please remember to post a summary of any useful responses to your
questions. + Support to the forum can be found at http://www.ai-geostats.org/
