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Leonora - Edjudina aeromagnetic interpretationNote: 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: ANZCW0703004261 Title: Leonora - Edjudina aeromagnetic interpretation CustodianCustodian: Geoscience Australia Jurisdiction: Australia DescriptionAbstract: The map addresses the distribution of Archaean rocks of the central Eastern Goldfields of Western Australia. Interpretation was undertaken at 1:250 000 scale for both Geoscience Australia aeromagnetic data (400m linespacing) and Fugro Airborne Surveys Pty. Ltd. data (200m linespacing). The Archaean rocks are subdivided into undivided gneiss-migmatite-granite (Agmg), banded gneiss (Agn), greenstone (Aa), and granite plutons (Ag). Where important relative differences in magnetisation are mapped, the geophysical map units include the suffixes _h (high), _m (medium), _l (low) and _r (remanent) for the level of magnetisation. Dykes, faults, and unassigned small intrusives are also mapped. The map is derived from a subset of a more extensive interpretation covering the exposed extent of the Yilgarn Craton. ANZLIC search words:
Spatial domain:
Geographic extent name: EDJUDINA - WA-2415 - 1:50 000 Map Series - Western Australia Geographic extent name: LAVERTON - WA-2195 - 1:50 000 Map Series - Western Australia Geographic extent name: LEONORA - WA-2243 - 1:50 000 Map Series - Western Australia Geographic extent name: MENZIES - WA-2365 - 1:50 000 Map Series - Western Australia Geographic extent name: KALGOORLIE - WA-2522 - 1:50 000 Map Series - Western Australia Geographic extent polygon: 120 -28, 123 -28, 123 -30, 120 -30, 120 -28, Note: The format for each Geographic extent name is: Name - Identifier - Category - Jurisdiction (as appropriate) See GEN Register
Data currencyBeginning date: 2001-12-01 Ending date: Not Known Dataset statusProgress: In Progress Maintenance and update frequency: Not Known Access
Access constraints: Licence required. Free Data DownloadData qualityLineage: The lines and polygons of the aeromagnetic interpretation were drawn on film overlaying images at 1:250,000 scale. Images, produced at Geoscience Australia, of TMI and the 1st vertical derivative of TMI were used for interpretation of the 400 m and 200 m line spaced aeromagnetic data. The film drawings were subsequently scanned, digitised on screen and attributed. Positional accuracy: The estimated positional accuracy of mapped anomalies and boundaries for the aeromagnetic interpretation is in the order of 200 - 500 m (drawing accuracy at 1: 250 000 interpretation capture scale) where flight lines cut anomalies at right angles, but may be less accurate where flight lines cross anomalies at acute angles. Attribute accuracy: The assigned attributes in the interpretive covers are qualitative as may be expected from interpretation of regional aeromagnetic data. However, extensive field work has been undertaken on the Kalgoorlie 1:1M Sheet to 'ground truth' aspects of the interpretations. Logical Consistency: Data have been checked/edited visually on plots and for topological consistency using in-house routines and Arc/Info software. Completeness: Aeromagnetic data coverage of this part of the Yilgarn Craton includes surveys with specifications 400 m to 200 m line spacing and 7 to 10 m station spacing along lines giving rise to differences in interpretation detail across the interpreted data sets. The interpretation was captured at 1:250 000 scale for use at 1:500 000 to 1:1M scale and summarises detail available in the images (ie not all anomalies are represented in the interpretation). Contact information
Metadata informationMetadata date: 2013-03-08 Additional metadataMetadata reference XHTML: http://www.ga.gov.au/meta/ANZCW0703004261.html Metadata reference XML: http://www.ga.gov.au/meta/ANZCW0703004261.xml . Authors:Whitaker, A.J. |
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