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Basement geology of northern Queensland

Note: This metadata describes the dataset in accordance with the ANZLIC (Australia New Zealand Land Information Council) Core Metadata Guidelines Version 2.


Dataset citation

ANZLIC unique identifier: ANZCW0703011855

Title: Basement geology of northern Queensland


Custodian

Custodian: Geoscience Australia / OEMD

Jurisdiction: Australia


Description

Abstract:

This `basement' interpretation drew extensively on published 1:100 000, 1:250 000 and smaller scale regional geological maps and analysis of grids of regional aeromagnetic data with line spacings between 100m and 1.5km from Geoscience Australia's aeromagnetic database. Bouguer Gravity and bore hole data were also used to complement the interpretation.

In effect, younger and flat lying cover material has been stripped for the depiction of basement rock. More specifically, Cainozoic materials were removed in the Georgetown - Charters Towers area, Cainozoic and Mesozoic sediments removed between Georgetown - Charters Towers and Mount Isa; and Phanerozoic sediments removed in the Mount Isa area.

ANZLIC search words:

  • GEOSCIENCES Geology Mapping
  • GEOSCIENCES Geophysics Mapping

Spatial domain:

locality map

Geographic extent polygon: 138 -17, 147 -17, 147 -25, 138 -25, 138 -17,

Geographic bounding box:
North bounding latitude: -17 °
South bounding latitude: -25 °
East bounding longitude: 147 °
West bounding longitude: 138 °

Data currency

Beginning date: Not Known

Ending date: Not Known


Dataset status

Progress: Not Known

Maintenance and update frequency: Not Known


Access

Stored data format:
DIGITAL - shp ArcView shape file ArcView Geographic GDA94
Available format type:
DIGITAL - shp ArcView shape file ArcView GDA94

Access constraints:

Creative Commons Attribution 3.0 Australia Licence

Free Data Download

Data quality

Lineage:

This `basement' interpretation drew extensively on published 1:100 000, 1:250 000 and smaller scale regional geological maps and analysis of grids of regional aeromagnetic data with line spacings between 100m and 1.5km from Geoscience Australia's aeromagnetic database. Bouguer Gravity and bore hole data were also used to complement the interpretation.

Positional accuracy:

This data has a nominal scale of 1:1,000,000. Positional accuracy of line work varies between 100 and 1000m based on the scale and heritage of the source maps.

Attribute accuracy:

All polygons are fully attributed with geological unit name hierarchy (where known) according to the Australian Stratigraphic Index and feature level metadata according to the Geoscience Australia digital data dictionary. All linework is attributed with geological attributes (ie: geological boundary, fault, water boundary) and feature level metadata according to the Geoscience Australia digital data dictionary. A geoscientist visually inspected the finished dataset to ensure the attributes were accurate and the data were consistent spatially with current scientific information. Data Dictionary standard: Geoscience Australia, Data Dictionary for GIS Products, Version 2007.01 (http://www.ga.gov.au/standards/datadict.jsp)

Logical Consistency:

. Data structure conforms to the Geoscience Australia standard for a solid geology dataset. QA tests were also carried out on these data for completeness, correct spatial representation, attribute accuracy, logical consistency and correctness, and where appropriate for compliance with Geoscience Australia's data dictionary. Data Dictionary standard: Geoscience Australia, Data Dictionary for GIS Products, Version 2007.01 (http://www.ga.gov.au/standards/datadict.jsp)

Completeness:

The geological information is complete within the bounding polygon. Systematic checks have been made of both unit and line information throughout the entire data set.


Contact information

Contact organisation: Commonwealth of Australia (Geoscience Australia) (GA)
Contact position: Manager Client Services
Mail address: Cnr Jerrabomberra Ave and Hindmarsh Dr
Mail address: GPO Box 378
Locality: Canberra
State: ACT
Country: Australia
Postcode: 2601
Telephone: 02 6249 9966
Facsimile: 02 6249 9960
Electronic mail address: sales@ga.gov.au

Metadata information

Metadata date: 2013-03-08


Additional metadata

Metadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703011855.html

Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703011855.xml

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Authors:Liu, S.F.
SPATIAL INFORMATION FOR THE NATION