L060 Poole Range seismic reflection and refraction survey, WA, 1962  

Authors / CoAuthors

Lavieuville, M.

Abstract

A four and a half month seismic survey has been carried out in the Poole Range area of the Fitzroy Basin by C. G. G. where both the reflection and refraction methods have been tested. Reflection experiments lead to a high multiplication of geophones and shot-holes patterns. However, tests were too limited and too scattered to allow for definite conclusions regarding the best recording procedure. The refraction method has been used to provide information regarding the extension at depth of Poole Range surface anticline. The same method was used for a reconnaissance survey on the regional gravity anomaly 16 A. Besides shallow markers, two and sometimes three deep markers were followed simultaneously. The results obtained during the survey indicate that: Poole Range surface structure has no extension at depth; - Two high zones, separated by a narrow trough appear to correspond to the gravity anomaly 16 A. The eastern high zone is a wide dome with a closure of about 4,000 ft at the level of the deeper marker. The western high zone corresponds to a shelf-like area of the deeper marker. It is overlain by sedimentary formations where facies changes are suggested by rapid variations of the marker's velocities. This is the shallowest area of the survey with a 15,000 ft/ sec marker at a depth of less than 10,000 ft. Delimination of the most interesting structural locations would require the carrying out of supplementary traverses. A tentative interpretation makes the deeper marker a probable Proterozoic level with depths ranging from 15,000 feet to 30,000 feet. The two others might represent Devonian and Ordovician formations.

Product Type

dataset

eCat Id

76439

Contact for the resource

Keywords

Australian and New Zealand Standard Research Classification (ANZSRC)

• Seismology and Seismic Exploration

( {1} )

• HVC_144637

( {1} )

• Seismic Data seismic survey

( Theme )

• seismic reflection

( Theme )

• seismic refraction

( Theme )

• seismic velocity

( Theme )

• petroleum exploration

( Theme )

• geophysics

( {1} )

• AU-WA

( {1} )

• Published_External

Publication Date

1974-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem    

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence    

Access - restricted

Use - license

Status

Purpose

Maintenance Information

asNeeded

Topic Category

geoscientificInformation

Series Information

Record

Lineage

Following a call for tender by the Government of Australia, Department of National Development, the Compagnie Generale de Geophysique provided a seismic party to carry out a survey in the Poole Range area of the Fitzroy Basin in Western Australia. This area is located in a permit granted to West Australian Petroleum pty. Ltd. as Authority to Prospect for oil No. 30H. The party was capable of operating either with the refraction or the reflection methods as specified in the Agreement which indicated that this work was to end no later than six months after the commencement of the survey. Tbe first hole was drilled on the 15th of June 1962, and the last one on October 31st, 1962. The first shot was fired on the 16th of June and the last shot on the 2nd of November 1962. Various reflection experiments, a ten miles long reflection traverse, a refraction sounding and 174,46 miles of refraction traverses were carried out during the survey.

Parent Information

Extents

[-20.0, -18.0, 124.5, 126.0]

Reference System

Spatial Resolution

Service Information

Associations

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