Abstract

A reconnaissance marine reflection seismic survey was conducted in 1961 by Seismograph Service Limited for West Australian Petroleum Pty Limited. The survey took place within the Carnarvon Basin in Western Australia, and covered Exmouth Gulf and the open coastal waters along the west coast of Western Australia from Frazer Island to Bernier Island (see Fig. 1). The project areas fall within Permit to Explore 28H. The survey was a two-boat operation. In the Exmouth Gulf area the survey was controlled by a Lorac radio navigational system, and along the west coast positioning was determined by sextant angle measurements to shore beacons and landmarks. All shots were recorded on magnetic tapes which were processed into variable-area record sections. The purpose of the survey was to obtain additional information on the regional geology and to map the extension of known structures in the North-West Cape region of the Carnarvon Basin. Information was also sought on the nature of the pre-Cretaceous to post-Palaeozoic faulting. The survey commenced on 15th July, 1961, and terminated on 20th August, 1961; a total of 753 miles of traverse was shot. The survey indicated that Exmouth Gulf is essentially synclinal in character in the Cretaceous and Tertiary sediments. Several major pre-Cretaceous fault trends which had already been mapped on land with the seismograph were followed beneath the Gulf. A pre-Cretaceous anticlinal axis underlies the Cape Range Anticline both to the north and to the south of the surface expression of the structure. An anticline was located trending north in the eastern part of the Gulf. A Cretaceous anticline near and parallel to the coast near Cardabia may be the extension of the Rough Range Anticline. To the south of Point Maud, the survey provided a much-needed tie between the Rough Range-Cape Range area and the structurally complex area round the Salt Marsh. Some structural features were found in this southern area and the trend of major faults was established. The geophysical operation undertaken in the Exmouth Gulf area, Western Australia, was subsidized under the Petroleum Search Subsidy Act 1959.
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Product Type/Sub Type

nonGeographicDataset - GA Publication - Other Publication

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1964

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Other Publication
petroleum exploration
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Lineage

Unknown

Digital Transfer Options

onLine

DISTRIBUTION Format

pdf

Distributor

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

Metadata File Identifier

a05f7892-d7eb-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 Date Stamp

2008-08-12

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact the Geoscience Australia Sales Centre via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Please note that support hours are 9 am to 5 pm weekdays