Citation

Vale, K.R., 1956. L015 Perth Basin seismic reflection traverse at Gingin, WA, 1955. Record  . Geoscience Australia, Canberra.

Abstract

A seismic reflection traverse was surveyed across the Perth Basin through the township of Gingin. The traverse was planned to give information on the thickness of the sedimentary section, the structure of the Basin, and the aplicability of the seismic method as a tool for both regional and detailed investigation. The traverse was chosen to cross a major negative gravity anomaly (-110 milligals at Gingin) and to cross the so-called "Hill River Fault". A considerable thickness of section was indicated (in excess of 17,000 feet) and tectonic structure, not apparent in the surface geology, was shown. A deep-seated anticline, the Gingin anticline, was discovered.
Google map showing geographic bounding box with values North bound -31.0 East bound 116.25 West bound 115.5 South bound -31.5
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Product Type/Sub Type

dataset - Seismic Data - seismic survey

Constraints

restricted
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1956

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

Seismic Data
seismic survey
geophysics
petroleum exploration
seismic reflection
Seismology and Seismic Exploration

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-31.0
East bound
116.25
West bound
115.5
South bound
-31.5

TEMPORAL EXTENT

1955-01-04 / 1955-02-18

Lineage

The Gingin area is about 45 miles north of Perth, and lies approximately in the centre of the Perth Basin, which extends from the vicinity of Cape Lecuwin in the south to Geraldton in the north. The Perth Basin has been recognised as sedimentary since before 1850 (Pairbridge, 1949) but has generally been considered to be a shallow basin. The Bureau of Mineral Resources, Geology and Geophysics first carried out gravity observations at Watheroo in 1949 and at Bullsbrook in 1951, while socking sites for water bores. As a result of the interest aroused by these observations, the Bureau then made a reconnaissance gravity survey of the entire Basin during portions of 1951 and1952 (Thyer and Evaringham, 1956). The results of that survey were very important. Bouguer gravity anomalies up to -140 milligals were recorded. Steep gradients covering the greater part of the anomalies occur within a strip 4 to 6 miles wide, running along, and covering, the Darling Scarp. It was difficult to account for such large anomalies with such steep gradients without assuming a thickness of fairly light sediments of the order of 30,000 feet on the western side of the scarp. There was no known geological evidence to suggest the existence or non-existence of such a, thickness of sediments. Consequently, at the first available opportunity, the Bureau moved a seismic party to the Perth Basin with the principal object of verifying, if possible, the interpretation of the gravity anomaly in terms of a thick sedimentary section. The results obtained by that party from the first traverse form the subject of this report.

Digital Transfer Options

onLine

DISTRIBUTION Format

misc

Distributor

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

Metadata File Identifier

de4ecded-0880-7494-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

2013-06-05

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