Tectonic fabric development and mineralisation of the Duketon greenstone belt, Western Australia

Autor:	P. R. Williams, J. Newton‐Smith, L. G. Fitzgerald, D. H. M. Harris
Rok vydání:	1997
Předmět:	Tectonics Sequence (geology) Felsic Tectonite Archean Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences Greenstone belt Petrology Structural geology Geology
Zdroj:	Australian Journal of Earth Sciences. 44:503-508
ISSN:	1440-0952 0812-0099
DOI:	10.1080/08120099708728329
Popis:	In Duketon, a mafic‐dominated rock sequence surrounds a felsic‐epiclastic rock sequence. D1 L‐S tectonites in the ma = fic‐dominated sequence are absent from the felsic rocks suggesting that these epiclastics were deposited post‐D1, on top of older greenstones. In the older greenstones, the linear shape of the Christmas Well orebody, together with auriferous quartz veins deformed by L‐S tectonites in the mineralised corridor through Hack Well, implies that the D1 fabric‐forming event strongly influenced the shape of the orebodies and probably the timing of mineralisation.
Databáze:	OpenAIRE
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