Geophysical Interpretation Harris Greenstone Belt, Gawler Craton, South Australia 380000m 133°44'56" 30°32'47" 6620000m
Hoatson D.M., Direen N.G., Whitaker A.J., Lane R.J.L., Daly S.J., Schwarz M.P., Davies M.B. 133°50'
400000m
420000m 134°10'
134°00'
134°20'
134°30'
440000m
134°40'
460000m
480000m
500000m
134°50'
135°00'
135°10'
535000m 135°21'53" 30°33'06" 6620000m
135°20'
520000m
30°40' 30°40'
Tarcoola
6600000m
6600000m
30°50' 30°50'
Kingoonya 6580000m
6580000m
Yerda
31°00' 31°00'
Lake
Shear
Harris
6560000m
6560000m
Zone 31°10' 31°10'
6540000m 31°16'05" 133°44'22" 380000m
133°50'
400000m
134°00'
134°10'
134°20'
440000m
460000m
134°30'
480000m
134°40'
134°50'
135°00' 500000m
420000m
Gairdner Dyke Swarm (?830 Ma): dolerite, basalt, gabbro
5
0
5
10
15
20
25
30 kilometres
MEZOPROTEROZOIC
South
UNIVERSAL TRANSVERSE MERCATOR PROJECTION, ZONE 55, GEOCENTRIC DATUM OF AUSTRALIA 134°00'
Pandurra Formation (>1425 Ma): sandstone, siltstone, shale, conglomerate
Hiltaba Suite Granite (~1590 Ma): granite, adamellite, granodiorite, syenite, quartz monzodiorite; massive plutons, high magnetisation
Fault
PALAEOPROTEROZOIC Fault, inferred Muckanippie Anorthosite Suite (~?1630 Ma): anorthosite, gabbro, diorite
The Harris Greenstone Belt in the central Gawler Craton of South Australia has potential for Archaean Ni-Cu-PGE sulphide and Archaean-Proterozoic lode-Au mineralising systems. This map is a preliminary interpretation of the Precambrian basement geology based on aeromagnetics, gravity, and diamond drilling. It highlights the extensive distribution of poorly exposed Archaean komatiites and associated rocks (green) that have a strike extent of at least 300 km. The regional pattern of linear komatiitic sequences associated with ovoid granitic plutons and province-wide shear systems, is very similar to the economically important Eastern Goldfields Province in the Yilgarn Craton, Western Australia.
Geological boundary Tarcoola Formation (~1650 Ma): siltstone, shale, quartzite, conglomerate, tuff, basalt Lake, non-perennial
COPYRIGHT © Commonwealth of Australia 2002
Symons Granite (~1690 Ma), St Peter Suite (1630 Ma): granite, granodiorite, adamellite, gneiss Trend-line Wilgena Hill Jaspilite (>1740 Ma): banded iron formation, chert, quartzite
Glenloth Granite (~2500 Ma): gneissic granite, adamellite, granodiorite Harris Greenstone Sequence (~>2500 Ma): komatiite, komatiitic basalt, felsic volcanics, banded iron formation, metasediments Undifferentiated Archaean (Mulgathing Complex) to Proterozoic basement: granite, orthogneiss, paragneiss, amphibolite, metasediments
Tarcoola Goldfield Trans
Tarcoola-Alice Springs Railway
Railway Township/homestead
This work is copyright. Apart from any fair dealings for the purposes of study, research, criticism or review, as permitted under the Copyright Act, no part may be reproduced by any process without written permission. Inquiries should be directed to the Communications Unit, Geoscience Australia, GPO Box 378, Canberra, ACT, 2601 DISCLAIMER Geoscience Australia has tried to make the information in this product as accurate as possible. However, it does not guarantee that the information is totally accurate or complete. THEREFORE YOU SHOULD NOT RELY SOLELY ON THIS INFORMATION WHEN MAKING A COMMERCIAL DECISION
DDH TAR 85-88 DDH TAR 90-93
NT QLD WA SA
Earea Dam Goldfield
str
Geophysical interpretation and compilation by D. M. Hoatson, N. G. Direen, A. J. Whitaker, R. J. L. Lane (Geoscience Australia) and S. J. Daly, M. P. Schwarz, M. B. Davies (Office of Minerals and Energy Resources, Department of Primary Industries and Resources, South Australia)
Australia
Study area
135°00'
Tarcoola Au
Hiltaba Suite Granite (~1590 Ma): granite, adamellite, granodiorite, syenite, quartz monzodiorite; zoned plutons, low to high magnetisation
LATE ARCHAEAN - EARLY PALAEOPROTEROZOIC
135°20'
SCALE 1:250 000
NEOPROTEROZOIC
Gawler Range Volcanics (~1590 Ma): dacite, rhyodacite, rhyolite, basalt, andesite, felsic pyroclastic rocks
520000m
135°10'
NSW
ali
an
Railway
VIC
Kingoonya TAS
Mt Finke 31°00'
Cartography by G. Tobin, L. Murray, L. M. Highet (Geoscience Australia)
Hopeful Hill Junction of Tarcoola Kingoonya 1:250 000 sheets Childara Gairdner
16/SA/67
Lake Harris
DDH Lake Harris 1-2 Glenloth Goldfield Harris Greenstone Sequence
Online GIS available at http://www.ga.gov.au/
Gawler Craton
GIS constructed by M. Peljo and L. M. Highet (Geoscience Australia) Published by Geoscience Australia, Department of Industry, Tourism and Resources, Canberra, Australia. Issued under the authority of the Minister for Industry, Tourism and Resources
0
40 km
DDH TAR 85-88
Diamond drillholes 85 to 88
It is recommended that this map be referred to as: Hoatson, D. M., et al, 2002. Geophysical Interpretation of the Harris Greenstone Belt, Gawler Craton, South Australia, Preliminary Edition, Geoscience Australia, Canberra Copies of this map can be obtained from: Sales Centre, Geoscience Australia GPO Box 378, Canberra, ACT, 2601 Ph (02) 6249 9519, Fax (02) 6249 9982 or downloaded in PDF format from http://www.ga.gov.au/
HARRIS GREENSTONE BELT INTERPRETED SOLID GEOLOGY PRELIMINARY EDITION SEPTEMBER 2002 SUBJECT TO AMENDMENT
01 Nov 2002 12:20:34 G:\1\gawler\lake_harris\gph_interp\poly.dgn
6540000m 31°16'25" 135°22'03" 535000m