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Open File Report 63

Notes being incorporated into a report on laterite geochemistry for the Moora, Perth, Pinjarra, Collie and Pemberton 1:250000 sheets

Innes, J., Smith, R.E. and Perdrix, J.L.

These notes support the presentation of regional laterite geochemical coverage in part of the SW of the Yilgarn Block of Western Australia to sponsors of Project P240, on 11 April, 1988.

The geochemical results of some 2000 samples of lateritic duricrust materials are discussed. These represent: (a) all of the sampling within the five 1:250 000 sheets, Moora, Perth, Pinjarra, Collie and Pemberton, arising from research into laterite geochemistry sponsored by Greenbushes Ltd. from 1980 to 1983, Fig. 1; (b) with the addition of some sampling within these sheets arising from a second phase of research sponsored by Greenbushes in conjunction with St. Joe Minerals during 1983 and 1984, Fig. 2.

Accompanying these notes is a plot of the distribution of As in laterite at 1:1 M scale, and a floppy disk of the data.

Last updated: Thursday, January 06, 2000 11:09 AM


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