Abstract

The Fitzroy Basin is situated south-east of Derby in the Kimberley Division of Western Australia. Results are given of a semi-detailed gravity survey which was made of the portion of the basin between longitudes 123°40' and 124°30' and latitudes 18°05' and 18°40'. The survey disclosed a large basin structure at least 7,000-8,000 feet deep and a few minor anomalies which may prove important. It is not known whether the higher density formation at 7,000-8,000 feet depth in the basin represents Pre-Cambrian basement or sediments of Devonian or Ordovician age. The position of, and displacement on, the Fenton Fault system were indicated. A detailed gravity survey of the Nerrima structure confirmed the existence of faults which had been mapped by the Bureau's geological and seismic parties, but was unable to determine the depths to which these faults penetrated. Seismic refraction work and test drilling are recommended south of the Fenton Fault, between Barnes' Flow and Mt. James, to disclose the nature of the higher density formation. Recommendations are also made for an extension of the detailed gravity survey to areas in which anomalies were revealed by the semi-detailed survey.
Google map showing geographic bounding box with values North bound -18.0 East bound 124.5 West bound 123.6 South bound -18.7
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Product Type/Sub Type

nonGeographicDataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1953-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

9230 Product http://www.ga.gov.au/metadata-gateway/metadata/record/9230/

Keywords

GA Publication
Record
gravity
geology
AU-WA
Gravimetrics

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-18.0
East bound
124.5
West bound
123.6
South bound
-18.7

Lineage

Legacy product, lineage not available

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Source Description

Legacy product, source data not available.

Metadata File Identifier

a05f7892-99bd-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
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