Conference Proceedings
The AusIMM Proceedings 1969
Conference Proceedings
The AusIMM Proceedings 1969
The Pyroxene Granulites and Associated Gabbros of the Fraser Range, Western Australia, and their Economic Significance
The Fraser Range is composed dominantly of basic pyroxene granulites derived from basalts, many of which appear to have been vesicular and pillowed. Acidic and basic garnet-bearing granulites are important in the west, and acidic granulites and narrow anorthosite layers are dominant in some regions east of the Fraser Range. An extensive flat-lying olivine gabbro sheet cuts the granulites, and in places has been converted to spineI-bearingmeta-gabbros and pyroxene granulites. The granulites of the Fraser Range (Proterozoic) are separated from the gneisses and schists of the goldfields regions (Archaean) by the Fraser Fault, over which there is a large gravity anomaly (gradient 20 milligals per mile). Some of the problems associated with the concentration of Cu, and Ni liberated from mineral lattices during metamorphism, and other principles of metal concentration in granulite terranes, are discussed. The recognition of vesicular and pillowed zones, even though highly metamorphosed, is of fundamental importance.
Contributor(s):
A F Wilson
-
The Pyroxene Granulites and Associated Gabbros of the Fraser Range, Western Australia, and their Economic SignificancePDFThis product is exclusive to Digital library subscription
-
The Pyroxene Granulites and Associated Gabbros of the Fraser Range, Western Australia, and their Economic SignificancePDFNormal price $22.00Member price from $0.00
Fees above are GST inclusive
PD Hours
Approved activity
- Published: 1968
- PDF Size: 2.176 Mb.
- Unique ID: P_PROC1969_1180