Authors / CoAuthors
Whitaker, A.J.
Abstract
The map addresses the distribution of Archaean rocks of the Yilgarn Craton but includes interpretation of overlying Proterozoic rocks (Yerida, and Earaheedy groups). Interpretation was undertaken at 1:250 000 scale for AGSO aeromagnetic data (400m and 1500m linespacing data) and for Fugro Airborne Surveys Pty.Ltd. coverage of the Menzies Sheet (200m linespacing data), and 1:500 000 scale for Fugro Airborne Surveys Pty.Ltd. coverage of the Kalgoorlie, Kurnalpi and Widgiemooltha Sheets (200m linespacing data). 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 derrived from a subset of a more extensive interpretation covering the exposed extent of the Yilgarn Craton.
Product Type
nonGeographicDataset
eCat Id
36998
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- Geophysical Mapaeromagnetic interp.
- ( Theme )
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- magnetics
- ( Theme )
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- geophysics
- ( Theme )
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- geology
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- AU-WA
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Geophysics
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- Published_External
Publication Date
2001-01-01T00:00:00
Creation Date
Security Constraints
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Status
Purpose
Maintenance Information
unknown
Topic Category
geoscientificInformation
Series Information
Lineage
Unknown
Parent Information
Extents
[-32.0, -25.0, 120.0, 123.0]
Reference System
Spatial Resolution
Service Information
Associations
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Source Information
Source data not available.