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Listing of the Geological Survey of South Australia's most recent releases

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Results and outcomes of the Minerals System Drilling Program

RB2016/00030 cover A comprehensive review of MSDP results and outcomes has now been compiled. The report not only provides geological insights from the 9 month drilling campaign along the southern Gawler Ranges, but summarises key results of trials of DET CRC technology.

Mineral Systems Drilling Program in the southern Gawler Ranges, South Australia. RB 2016/00030

Australian Journal of Earth Sciences cover

Spectral characteristics of the Gawler Range Volcanics in drill core Myall Creek RC1

G. Gordon, S. McAvaney and C.Wade
Article now available from Australian Journal of Earth Sciences

Mesoproterozoic fluid events affecting Archean crust in the northern Olympic Cu–Au Province, Gawler Craton: insights from 40Ar/39Ar thermochronology

A. J. Reid, F. Jourdan and E. A. Jagodzinski
Article now available from Australian Journal of Earth Sciences

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Maps

Six Mile Hill - MSDP Special Map Series

As part of the Mineral Systems Drilling Program (MSDP), a detailed geological mapping program was carried out at each of the three MSDP drilling areas (Six Mile Hill, Peltabinna and Mount Double) between July 2015 and April 2016. The Six Mile Hill maps and report are the first products to be released from this 1:75 000 MSDP Special Map Series.

Six Mile Hill maps and Report

The Surface geology of Six Mile Hill Map Sheet provides a detailed representation of the regolith and outcropping Proterozoic stratigraphy of Six Mile Hill, and includes a number of peripherals, including TMI, gravity, DEM imagery, a reliability diagram showing field observation sites, a solid geology inset and a customised legend. Simplified stratigraphic logs of the MSDP drillholes are also displayed on the map.

The Interpreted Proterozoic solid geology of Six Mile Hill Map Sheet provides an interpretation of the Neoproterozoic stratigraphy of the Stuart Shelf and underlying Meso- to Palaeoproterozoic stratigraphy of the Gawler Craton, obscured by extensive Cenozoic cover.

The Geology of the Six Mile Hill Map Sheet Report Book 2016/00014 is a report describing the physiography, regional geology, stratigraphy, structural geology and geological history of the Six Mile Hill area.

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Regolith map of the Southern Gawler Ranges Margin (YARDEA and PORT AUGUSTA 1:250 000 map sheets)

Regolith map of the Southern Gawler Ranges Margin map

The new regolith map of the Southern Gawler Ranges Margin provides a valuable regional overview of the main regolith types and their associated landforms, a general outline of the major areas of bedrock or regolith dominated terrain as well as the occurrence of in-situ versus transported regolith of this emerging mineral province.

It aims to provide a broad-scale framework for guiding geochemical prospecting for a wide range of minerals and materials, as a basis for guiding mineral exploration, and to provide a useful dataset for addressing other land use issues like groundwater.

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1:250 000 mapsheets

WINTINNA

Wintinna 250K Mapsheet and Explanatory NotesThe WINTINNA map sheet SG53-14, NW South Australia, was completed and published as a double sided printed map in July 2015 (folded and flat sheets). The printed map sheet includes a Reference column containing 77 rock units, summary logs to 80 drillholes, a Cross-section, three Rock Relation Diagrams, a Structural Interpretation Sketch, a Total Magnetic Intensity image, and a Bouguer Gravity Anomaly image. The reverse side displays a brief account of the geology, geological history, mineral occurrences, fossils and natural history, as well as seven selected photos and an Index to key Geographic Features with GPS coordinates.

The published printed WINTINNA 250K Mapsheet and Explanatory Notes are available from the SARIG Online Shop.

The WINTINNA 250K digital mapsheet and a pdf of the Explanatory Notes (Report Book 2014/00005) are also downloadable via SARIG.

Mount Painter Region geological map 1:100 000 (2nd edition)

Mount Painter Region geological map 1:100 000

The newly released updated map of the Mount Painter region, compiled by Stephen Hore, builds upon the classic 1969 map of Ron Coats and co-authors presented in Bulletin 43, Regional and Economic Geology of the Mount Painter Province. Over 40 years of subsequent mapping, research and mineral exploration, using more and more advanced techniques such as geochronology, isotopic and geochemical analysis and regolith and landscape studies, underpin a huge leap in understanding of this unusual and fascinating portion of the State’s geology. This new map presents a synthesis of this large body of work, and will later be accompanied by a comprehensive report. Much is still poorly understood, however, and there is considerable scope for further research.

The Mount Painter and Mount Babbage Inliers, forming the core of the ranges here, demonstrate a complex Mesoproterozoic to Palaeozoic geological history largely unknown in the rest of the country. The map also portrays the overlying Neoproterozoic to Cambrian and Cretaceous to Cenozoic cover, the latter being host to economic uranium deposits at Beverley and Four Mile recycled by geological processes from the Inliers.

Download the map

Digital mapsheets

    100K digital mapsheets
1:250 000
1:100 000

1:250 000, 1:100 000, and 1:50 000 digital maps are available via SARIG from the Mapsheets layer.

3D geological models

3D Architecture model of the western Gawler Craton

3D Architecture model of the western Gawler Craton

A new crustal architecture model for the frontier western Gawler Craton is available following collaborative work undertaken on Australia’s longest deep crustal seismic line.

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South Australian Mineralogical Data Package

South Australian Mineralogical Data Package

The South Australian Mineralogical Data Package provides spectral data for over 850 drillholes from across South Australia.

Each package includes a specific spectral scalar point set with its state-wide 3D voxet interpolation.

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South Australian Geophysical Reference Model

South Australian Geophysical Reference Model

This valuable new research and exploration tool integrates statewide 3D geophysical data to a depth of 100 km. The model incorporates new gravity, magnetic, and magnetotelluric inversions with existing deep crustal reflection seismic surveys and seismological velocity models .

The model provides new insights into the mineral systems, lithospheric architecture, and geology of South Australia. The model:

  • Highlights the potential of the south western margin of the Curnamona Craton to host IOCG mineral systems.
  • Maps the feeder conduits for the Gawler Range Volcanics in 3D.
  • Maps the distribution of high grade metamorphic terranes in 3D.
  • Maps major crustal blocks in 3D.

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Data

PACE Musgrave Province Airborne Electromagnetic Survey

PACE Musgrave Province AEM image17,395 line kilometres of new data in one of the last true exploration frontier areas in Australia is now available to download from SARIG.

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PACE Copper Coompana Gravity Survey

PACE Copper Coompana Gravity Survey image13,000 new gravity observations in the state’s largely underexplored far west are available to download from SARIG.

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Updated Geophysical State Images

Statewide geophysical imagesThe statewide gravity grid has been updated to include all available open-file data. New total magnetic intensity and radiometric grids will follow soon.

These updated statewide images are available to download from the SARIG Geophysical State Images map layer group as ers and tiff images. They can also be clipped to size using the Geophysical Databases tool in SARIG.

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Eastern-Central Gawler Craton Archaean-Middle Mesoproterozoic Solid Geology

Eastern Central Gawler Solid Geology mapThis dataset represents a preliminary basement solid geology interpretation undertaken for the purpose of updating a fundamental exploration dataset in an area that has been the target of significant data acquisition in recent years. The area covered includes the eastern Gawler Craton, a known copper-gold province, as well as a large region of the central Gawler Craton. The interpretation is for use at ~1:500 000 scale, and combines outcrop geology, drillholes and new interpretation of magnetic and gravity data. The solid geology map and spatial data is intended to represent crystalline basement stratigraphy, which is considered to be older than middle Mesoproterozoic in this region. This dataset marks the first use of several map units, including the Peter Pan Supersuite, which replaces the Lincoln Complex and associated Kimban Orogeny granitoids.

Eastern-Central Gawler Craton Archaean to Middle Mesoproterozoic Solid Geology. GDP 00034

Depth to Crystalline Basement GIS dataset 2016

Depth to Crystalline Basement GIS DatasetThe Depth to Crystalline Basement Data Package is a collection of GIS datasets (in ArcGIS and Mapinfo formats) that portray actual or inferred depth to crystalline basement in South Australia, which have been assembled on a province-by-province basis. Also included are depths to the top of time-slices based on logged drillhole stratigraphic units.

Download the Depth To Crystalline Basement Data Package.

For more information, contact:

Resources Information Centre
Customer Services
+61 8 8463 3000
resources.customerservices@sa.gov.au