Australian Geological Provinces Database (2004 edition)  

Authors / CoAuthors

Bain, J.H.C. | Retter, A.J. | Hanna, A.L. | Blevin, J.E. | Borissova, I. | Bradshaw, B.E. | Burch, G.J. | Colwell, J. | Krassay, A. | Pollock, R. | Miyazaki, S. | Moss, G. | Nicholson, C.J. | Rollet, N. | Ryan, D. | Trigg, K.R. | Liu, S.F. | Kilgour, B. | Stanley, S.

Abstract

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.

Product Type

dataset

eCat Id

61326

Contact for the resource

Keywords

• GIS DatasetNational

( Theme )

• sedimentary basins

( Theme )

• metamorphism

( Theme )

• geology

( Theme )

• metallogenesis

( Theme )

• National dataset

( Theme )

• marine

Australian and New Zealand Standard Research Classification (ANZSRC)

• Earth Sciences

• Published_Internal

Publication Date

2004-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - restricted

Use - license

Status

Purpose

Maintenance Information

asNeeded

Topic Category

geoscientificInformation

Series Information

Lineage

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.

Parent Information

Extents

[-50.0, -8.0, 109.0, 173.0]

Reference System

Spatial Resolution

Service Information

Associations

Downloads and Links

Source Information

GIS downloadable dataset that has been extratacted from the Provinces Database. Available in Arcview format (shp).