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Australian Geological Provinces Database (2004 edition)Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2. Dataset citationANZLIC unique identifier: ANZCW0703006361 Title: Australian Geological Provinces Database (2004 edition) CustodianCustodian: Geoscience Australia Jurisdiction: Australia DescriptionAbstract: The data set provides outlines for the maximum extent of Australian geological provinces and their components, including sedimentary, igneous and metallogenic provinces, both onshore and offshore. These data were compiled as part of Geoscience Australia's integrated digital information system to provide improved accessibility and knowledge relating to the petroleum and minerals geology and prospectivity, and to provide a national stratigraphic and tectonic framework for Australia. The current dataset is not complete for Australia, and covers only offshore sedimentary provinces and a selection of sedimentary, igneous and metallogenic provinces in onshore Australia. ANZLIC search words:
Spatial domain:
Geographic extent name: AUSTRALIA INCLUDING EXTERNAL TERRITORIES - AUSAAT - Australia - Australia Geographic extent name: AUSTRALIAN EEZ - AUSTRALIAN EEZ - Ocean and Sea Regions - Australia Geographic extent polygon: 109 -8, 173 -8, 173 -50, 109 -50, 109 -8, Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register
Data currencyBeginning date: 2003-10-01 Ending date: 2004-05-11 Dataset statusProgress: Complete Maintenance and update frequency: Not Known Access
Access constraints: No restrictions Free Data DownloadData qualityLineage: Onshore - The data were captured using ArcInfo software at a nominal scale of 1:1 000 000. Geological provinces were typically delineated from regional geological maps and data, and where concealed by younger rocks, province extents were interpreted from geophysical data. Province outlines were captured by spatial data specialists, standardised and stored in an enterprise ORACLE database (PROVINCES) developed to store both spatial and a-spatial information.. Geological descriptions of each province were also entered into this database to complete attribution. Offshore - Offshore basin boundaries have been captured since 2001 using various sources and processing steps. In many offshore areas where basins had limited previous mapping, boundaries were interpreted directly from seismic reflection data that ranged from coarse grids (lines spaced 10-50 km apart) to regional seismic lines. Boundaries were interpolated between areas of seismic control, often with the aid of gravity, magnetic or bathymetric trends. For offshore basins with extensive previous mapping, boundaries were generally captured from previously published maps validated where possible using seismic lines. Basin boundaries were either digitised from base maps into Petroseis, or digitised directly on-screen as ArcView shapefiles using seismic shotpoint files to position interpreted boundaries. In many onshore areas, and some offshore areas, basin boundaries were provided in a digital format by state agencies. Basin boundaries were imported into ArcInfo to build topology and edit boundaries. Polygon coverages were then generated from the boundaries. These spatial data were then integrated with onshore data, quality assured and stored in the PROVINCES database by spatial data experts and database developers. Geological descriptions of each province were also entered into this database to complete attribution. Positional accuracy: The data have been generated to a nominal scale of 1:1 000 000. Although some data were captured at higher scale these have been simplified for consistency. The data is regarded as accurate to the nominal scale. Attribute accuracy: Attributes are based on geoscientific information on source maps and in reports and research papers. As some information is the result of highly detailed recent mapping and some is taken from reconnaissance mapping several years old, attribute accuracy is highly variable. Logical Consistency: A geoscientist visually inspected the finished dataset to make sure the attributes were accurate and the data were consistent spatially with current scientific information. Tests are also carried out on these data for data completeness, correct spatial representation, attribute accuracy, logical consistency and correctness, and where appropriate for compliance with Geoscience Australia's GIS data dictionary available at www.ga.gov.au/standards/datadict.jsp. Completeness: The dataset is not complete for Australia. The current provinces dataset covers only offshore sedimentary provinces and a selection of sedimentary and igneous provinces in onshore eastern Australia. The dataset is complete for intended use at 1:1 000 000 scale. Contact information
Metadata informationMetadata date: 2013-03-08 Additional metadataMetadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703006361.html Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703006361.xml Data Dictionay standard - www.ga.gov.au/standards/datadict.jsp. Associated with this shape file is a one too many table called: gprovrels.dbf Specialised Geographic Information System (GIS) software is required to view this data. Authors:Bain, J.H.C. Retter, A.J. Hanna, A. Blevin, J.E. Borissova, I. Bradshaw, B. Burch, G. Colwell, J. Krassay, A. Pollock, R. Miyazaki, S. Moss, G. Nicholson, C. Rollet, N. Ryan, D.A. Trigg, K. Liu, S.F. Kilgour, B. Stanley, S. |
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