Occurrence of komatiites in the Sandstone greenstone belt, north-central Yilgarn Craton

Recent geological mapping and exploration drilling has identified widespread but poorly exposed komatiites in the southern part of the Sandstone greenstone belt, which represent the most significant occurrence of komatiites so far recognised in the north-central Yilgarn Craton. Despite serpentinisat...

Full description

Saved in:

Bibliographic Details
Published in:	Australian journal of earth sciences 2005-12, Vol.52 (6), p.959-963
Main Authors:	Chen, S. F., Morris, P. A., Pirajno, F.
Format:	Article
Language:	eng
Subjects:	Archaean komatiites Sandstone greenstone belt Yilgarn Craton
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Recent geological mapping and exploration drilling has identified widespread but poorly exposed komatiites in the southern part of the Sandstone greenstone belt, which represent the most significant occurrence of komatiites so far recognised in the north-central Yilgarn Craton. Despite serpentinisation and talc - carbonate alteration, relict olivine-cumulate and less common olivine-spinifex textures are preserved. Whole-rock geochemistry indicates the presence of aluminium-depleted and aluminium-undepleted komatiites, both of which are also found in the Forrestania greenstone belt of the south-central Yilgarn Craton.
ISSN:	0812-0099 1440-0952