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Gawler Craton: Recent Releases

Explanatory Notes

Maitland Special

The Maitland Special Explanatory Notes have now been released, following the publication of the Maitland Special 1:250 000 Geological Map in 2003.

The map area includes the historic Moonta Wallaroo mineral field and covers the major part of South Australia’s Yorke Peninsula. The rocks in the map area comprise deformed Palaeoproterozoic and early Mesoproterozoic basement of the southeastern Gawler Craton, and undeformed Neoproterozoic to Quaternary sediments. More than 90% of the land surface of the map area is covered by Quaternary sand dunes, calcrete, aeolianite and soil.

Both products were authored by Wen-Long Zang of the Geological Survey Branch.

Maitland Special Explanatory Notes: Introduction and Contents List (.pdf ~ 130kb).

The 1:250 000 Maitland Special Explanatory Notes and a copy of the map can be purchased from the Customer Services Centre.

 

 Cover of Maitland Special Explanatory Notes

Yardea

Exploration activity is reaching record levels in the Gawler Craton stimulated most recently by the SA Government's commitment to exploration through the PACE Initiative.

One area attracting a great amount of interest is the southern margin of the Gawler Ranges. The area already hosts a number of mineral prospects including the Menninnie Dam base metal project and the Barnes, Weednanna and Baggy Green gold prospects.

The 1:250 000 YARDEA Geological Map was originally published in 1988 however, at the time, no explanatory notes were released. Ex-PIRSA geologists, A. J. Parker and R. J. Flint (then of Geosurveys Australia Pty Ltd) were engaged to produce the accompanying YARDEA Explanatory Notes. Their initial version was only ever available as an internal draft and received extensive modification and revision by PIRSA geologists.

The 1:250 000 YARDEA Explanatory Notes are now complete and available in digital format.

The YARDEA Explanatory Notes and the 1:250 000 YARDEA map can be purchased from the Customer Services Centre.

 Cover of Yardea SA Explanatory Notes

Other Explanatory Notes and Maps

Crustal Evolution of the Gawler Craton, South Australia

As part of a significant effort to improve the availability of geochronological data generated by PIRSA and its collaborative partners, PIRSA is pleased to announce the release of the Report Book - Crustal Evolution of the Gawler Craton, South Australia: Application of the TerraneChronŽ technique to detrital zircon from modern stream sediments. This product is a result of integrated research between GEMOC and PIRSA (co-authored by Anthony Reid of the Geological Survey Branch).

This report presents the results of a TerranechronŽ study of detrital zircons from modern stream sediments of the Gawler Craton. The TerranechronŽ approach involves obtaining U-Pb ages, Hf isotope composition and trace element data from single zircon grains, which provide an insight into the age, source rock evolution and source rock type on the analysed zircons.

Crustal Evolution of the Gawler Craton: Abstract and Introduction (.pdf ~ 110kb).

A complete copy of Crustal Evolution of the Gawler Craton, Report Book RB2006/00004 is available through SARIG, the South Australian Resources Information Geoserver.

Cover of Crustal evolution of the Gawler craton, SA - report book

Guide to the sedimentary cover of the central Gawler Craton, South Australia

(with special emphasis on the Harris Greenstone Belt region)

The Guide to the sedimentary cover of the Central Gawler Craton, South Australia (with special emphasis on the Harris Greenstone Belt region) is a report book prepared by Geological Survey Branch geologists Paul Rogers (now retired) and Wenlong Zang.

This report book will serve as a valuable resource for mineral exploration through and within the cover of the central Gawler Craton. Many of the presented concepts can be applied to the other areas of this geological province.

A complete copy of Guide to the sedimentary cover of the central Gawler Craton, Report Book RB2006/00001 is available through SARIG, the South Australian Resources Information Geoserver.

 Cover of Guide to the sedimentary cover of the Central Gawler Craton, SA - report book