Download as PPS, PPTX
![New tectonic, basin and solid geology
maps for South Australia
DATA SOURCES
• Incorporate and standardise newly released province
solid geology interpretations:
- Warburton Basin [eastern part] (Rod Boucher – Linex, for
Petroleum Group) - 2002
- Musgrave Block (Leigh Rankin – GeoInterp) - 2002
- Officer Basin (Leigh Rankin – GeoInterp , for Petroleum
Group) - 2003
- northern Murray Basin basement (Adrian Fabris) - 2003](https://image.slidesharecdn.com/sareiccowley-171209193244/85/Sareic-cowley-22-320.jpg)
Uploaded byBrett Johnson
Sareic cowley
The document discusses the creation of new tectonic, basin, and solid geology maps for South Australia to better understand the state's geological architecture, track historical geological events, and enhance regional studies. The project, initiated in 2000, aims to compile up-to-date digital geological datasets that integrate with existing data, standardize terminology, and visualize the geological history through time-slice models. The first edition of the solid geology digital data and hardcopy map is expected to be released later this year.
More Related Content
Sareic cowley
- 1. New tectonic, basinand solid geology maps for South Australia Wayne Cowley Principal Geologist – Statewide Geology Geological Survey Branch Minerals and Energy Division Primary Industries and Resources SA EXIT
- 2. New tectonic, basinand solid geology maps for South Australia WHY DO WE NEED THESE MAPS? • Understand the broad geological architecture of the State • Track the history of geological events and mineralising processes in SA over time • Provide a regional perspective to more detailed studies and exploration projects
- 3. New tectonic, basinand solid geology maps for South Australia WHY DO WE NEED THESE MAPS? • Integrate with other digital geological datasets in order to gain new insights into prospectivity • Provide a link to geology and mineral systems in neighbouring States and formerly attached terranes • Solid geology maps are a window into the geology hidden below younger sedimentary basins and regolith
- 4. New tectonic, basinand solid geology maps for South Australia HISTORY • 1:2 000 000 published Tectonic Map of SA of 1982 • Shows Phanerozoic basins superimposed on basement provinces in a single hardcopy map • Not suited to GIS manipulation, poor spatial detail, out of date
- 5. New tectonic, basinand solid geology maps for South Australia HISTORY • For Bulletin 54, Geology of South Australia (1993), former tectonic map was updated and separated into two maps, each digitised • Archaean to Early Palaeozoic Tectonic Provinces • and……
- 6. New tectonic, basinand solid geology maps for South Australia HISTORY • …Middle Palaeozoic to Cainozoic Basins … ie post-dating the Cambro-Ordovician Delamerian Orogeny
- 7. New tectonic, basinand solid geology maps for South Australia PROJECT CONCEPT • This project, commenced in 2000, is to produce a new State tectonic and basin GIS database. This was necessary because of: - a lack of up-to-date State-wide compilations showing tectonic features and sedimentary basins in the map and GIS information offered to our customers, and used in- house…
- 8. New tectonic, basinand solid geology maps for South Australia - …an explosion of new geological and geophysical data since 1993, and still continuing, generated in large part by mineral and petroleum exploration stimulated by PIRSA initiatives - the widespread use of GIS systems, enabling easy interrogation, manipulation and update of map data
- 9. New tectonic, basinand solid geology maps for South Australia PROJECT THEMES • concept of project is primarily to create digital data layers, with hardcopy output as a subsequent phase rather than driver • obtain copies of comparable maps from interstate geological surveys and Geoscience Australia and examine their on-line map server data layers and web sites; evaluate these products for useful approaches to presentation and reference style
- 10. New tectonic, basinand solid geology maps for South Australia PROJECT THEMES • develop broad time-slice concept for entire geological history of SA, with time slices separated by major breaks in the record • within these time-slices, revise boundaries of geological provinces, sub-provinces, basins and sub-basins for storage in GIS
- 11. New tectonic, basinand solid geology maps for South Australia PROJECT THEMES • create time-space diagrams to enable ready visualisation of the State’s entire geological history in a temporal and geographic context • examine present usage of terminology for tectonic features and events for inconsistent usage in SA and identify opportunities for standardisation
- 12. New tectonic, basinand solid geology maps for South Australia PROJECT THEMES • article published in MESA Journal 27 (October 2002): Towards defining South Australia’s geological provinces and sedimentary basins – outlines present province and basin definitions and terminology as presently used, using the time-slice format • develop an Archaean-Ordovician solid geology GIS dataset and map – see poster
- 13. New tectonic, basinand solid geology maps for South Australia TIME SLICES • time-slice model enables separation of stacked basins, basement provinces and key events, using a systematic approach • initially, seven time slices were presented in the South Australian Mineral Explorers Guide CD and article in MESA Journal 27…
- 14. New tectonic, basinand solid geology maps for South Australia Gawler Craton Musgrave Province Curnamona Province Cariewerloo Basin Musgrave Province Coompana Block
- 15. New tectonic, basinand solid geology maps for South Australia Officer Basin Adelaide Geosyncline Polda Trough Warburton Basin Arrowie Basin Stansbury Basin, Kanmantoo Province
- 16. New tectonic, basinand solid geology maps for South Australia Pedirka Basin, Simpson Basin Arckaringa Basin Denman Basin Polda Trough Polda Trough Troubridge Basin Nadda Basin Cooper Basin Bight Basin Eromanga Basin Otway Basin Berri Basin
- 17. New tectonic, basinand solid geology maps for South Australia TIME SLICES • seven time slices now expanded to eight as project continues… • revised boundaries for Late Mesoproterozoic, Neoproterozoic and Cambrian basins have been prepared Lake Eyre Basin Eucla Basin Gambier Basin Murray Basin
- 18. New tectonic, basinand solid geology maps for South Australia TIME-SPACE DIAGRAMS • Time-space diagrams of SA basement provinces and basins compiled to assist in format and style decisions for the project: - Archaean-Mesoproterozoic - Mesoproterozoic-Cainozoic • These were also presented in the South Australian Mineral Explorers Guide CD…
- 19. New tectonic, basinand solid geology maps for South Australia …portion of Archaean to Mesoproterozoic time-space diagram Horizontal axis = time Vertical axis = province or geography
- 20. New tectonic, basinand solid geology maps for South Australia …portion of Mesoproterozoic to Cainozoic basins time-space diagram
- 21. New tectonic, basinand solid geology maps for South Australia DATA SOURCES • Incorporate and standardise pre-existing province solid geology interpretations, some of which were updated during course of project: - Kanmantoo Province (Peta Abbot) – (1997) - north, west and south Gawler Craton (1994-1997) – combined and extended, with revised versions produced by Martin Fairclough, Michael Schwarz (2003, 2004) - Curnamona Province (1996 and 2000), revised version by Andy Burtt and Peter Betts in 2003
- 22. New tectonic, basinand solid geology maps for South Australia DATA SOURCES • Incorporate and standardise newly released province solid geology interpretations: - Warburton Basin [eastern part] (Rod Boucher – Linex, for Petroleum Group) - 2002 - Musgrave Block (Leigh Rankin – GeoInterp) - 2002 - Officer Basin (Leigh Rankin – GeoInterp , for Petroleum Group) - 2003 - northern Murray Basin basement (Adrian Fabris) - 2003
- 23. New tectonic, basinand solid geology maps for South Australia DATA SOURCES • Regions for which no coherent up-to-date solid geology interpretation existed: - Coompana Block - Adelaide Geosyncline - Stuart and Spencer Shelves - southern Officer Basin…
- 24. New tectonic, basinand solid geology maps for South Australia DATA SOURCES • Regions for which no coherent up-to-date solid geology interpretation existed: - …Gairdner Dyke Swarm - western Warburton Basin and Amadeus Basin - Polda Trough - offshore Gawler Craton and Kanmantoo Province
- 25. New tectonic, basinand solid geology maps for South Australia DATA SOURCES • Other sources of data used to create solid geology for these regions: - outcrop polygons from 1:2 000 000 State surface geology map - scanned tectonic sketches from 1:250 000 published maps - drillhole stratigraphic logs from SA_GEODATA - geophysical imagery - other published geological references
- 26. New tectonic, basinand solid geology maps for South Australia SOLID GEOLOGY • Archaean-Ordovician Solid geology dataset comprises three layers: • Archaean to Middle Mesoproterozoic • Late Mesoproterozoic (Cariewerloo Basin) • Neoproterozoic to Ordovician (Delamerian Orogeny)
- 27. New tectonic, basinand solid geology maps for South Australia SOLID GEOLOGY • layers can be displayed separately or superimposed (as here) • incorporates optimum spatial and stratigraphic detail, allowing simplified versions to be easily generated for various purposes
- 28. New tectonic, basinand solid geology maps for South Australia SOLID GEOLOGY Hardcopy reference to comprise two parts: time-space diagram, greatly expanded from that used in Explorers Guide CD…
- 29. New tectonic, basinand solid geology maps for South Australia …and text reference: These text data form basis of entries to attribute tables in GIS dataset O-ip Pondrinie Basalt Trachytic basalt, some with olivine, some amygdaloidal O-i Innamincka Formation Deltaic red-bed shale, siltstone and sandstone E-j Jena Basalt Within-plate amygdaloidal basalt, hyaloclastite, porphyritic and trachytic basalt EOu Dullingari Group Slope to basinal shale, siltstone, lime mudstone; minor sandstone and pebbly sandstone at top EO4 Diamond Bog Dolomite; Kalladeina Formation; Pando Formation Vuggy dolomite; shelf limestone, dolomite, siltstone, shale and sandstone; glauconitic sandstone E-m Mooracoochie Volcanics; 517±9Ma Volcaniclastics, porphyritic trachyte, dacite N unnamed Undifferentiated Neoproterozoic rocks LN unnamed Undifferentiated Proterozoic basement AO unnamed inferred outlier: ?Delamerian granitic gneiss at Young Rocks intrudes unknown basement O2 unnamed Post-Delamerian basalt and dolerite EOd26 Late/post-Delamerian mafic-ultramafic intrusives including Black Hill Norite; 497±10 - 482±20 EOd27 British Empire Granite, Mudnawatana Tonalite Late/post-Delamerian felsic intrusives: British Empire Granite and Mudnawatana Tonalite; 442±6 - 427±133Ma EOd25 Late/post-Delamerian felsic intrusives including Murray Bridge and Mannum Granites; 497±10 - 471±12Ma EOdb Bungadillina Monzonite Pre/syn-Delamerian felsic intrusive: Bungadillina Monzonite; 527±27Ma EOd24 Pre/syn-Delamerian felsic intrusives including Rathjen Gneiss; 564±57 - 486±6Ma EOd23 unnamed Syn-Delamerian mafic intrusives EO undifferentiated Cambro-Ordovician metasediments, including Kanmantoo Group? Ek4 unnamed possible volcanics intercalated with Kanmantoo Group metasediments Eo9 felsic-intermediate volcanics, including Teal Flat and Marne River Volcanics; 521±4 - 478±23Ma; intercalated with Kanmantoo Group metasediments Ek3 unnamed mafic volcanics intercalated with Kanmantoo Group metasediments Ek Kanmantoo Group undifferentiated Kanmantoo Group: metasandstone, phyllite, schist, gneiss Eo8 mafic volcanics, including Truro Volcanics, intercalated with Normanville and/or Kanmantoo Group metasediments En Normanville Group Normanville Group: carbonate rocks, basal sandstone NO1 unnamed undifferentiated Neoproterozoic to Cambrian metasediments, Neoproterozoic-Ordovician volcanics and mafic intrusives NE1 unnamed undifferentiated Neoproterozoic to Cambrian metasediments Nox Boucaut Volcanics Boucaut Volcanics: felsic and mafic volcanics; 777±7Ma N unnamed undifferentiated Neoproterozoic sediments Lb Barossa Complex Barossa Complex Warburt on Basin Kersaint Block Kanmant oo Province; basement t o Murray Basin
- 30. New tectonic, basinand solid geology maps for South Australia COMPILATION • using desktop GIS to modify polygons and lines (faults) from pre-existing datasets and create new data • classify and tag as work proceeds, linking with attributes stored in a separate look-up table: search on province, stratigraphic name, map symbol, age…
- 31. New tectonic, basinand solid geology maps for South Australia COMPILATION • employ as much digital data as possible to avoid problems with spatial accuracy of non-digital data • some of source data are geophysical interpretations with uncertain level of cross-checking with outcrop and drillhole data
- 32. New tectonic, basinand solid geology maps for South Australia WHERE TO FROM HERE? • first edition Solid Geology digital data and hardcopy map to be released later this year • complete province and basin boundary datasets • prepare recommendation for standardisation of terminology for tectonic features and events in South Australia • ongoing update of all components of tectonic, basin and solid geology maps with new data
- 33. New tectonic, basinand solid geology maps for South AustraliaMintabie Lambina Challenger Hawks Nest Tarcoola Tunkillia Myall Peculiar Knob Prominent Hill Myrtle Springs, Mt Hutton Reliance Portia Kalkaroo White Dam Mt Gunson Archaean-Ordovician Solid Geology