Citation

Watson, S.J., 1964. L046 Murray Basin seismic reflection and refraction survey, NSW, VIC, SA, 1960. Record  . Geoscience Australia, Canberra.

Abstract

Between August and December 1960 a seismic party from the Bureau of Mineral Resources carried out a reconnaissance seismic survey, using reflection and refraction techniques, across the Murray Basin. Traverses were placed at selected localities at Carrathool, Hay, Maude, Balranald, Wentworth, Merbein, Lake Victoria, and Loxton. In general, the results show that the Basin, at least along the line of traverse, consists of essentially undisturbed sediments above a high-velocity basement. The thickness of Basin sediments ranges from about 900 ft at Carrathool to 2200 ft at Lake Victoria and Merbein. Most of the sediments are of Tertiary age, with Mesozoic at Loxton and Wentworth and perhaps at other traverses in the western part of the Basin. The seismic velocity in the sediments has a typical value of about 6000 to 7000 ft/sec, while the velocity in the basement ranges from 15,750 ft/sec (at Hay) up to 20,000 ft/sec (at Lake Victoria). The geological nature of basement is not known, but it is considered that it definitely marks the floor of the Tertiary (or Tertiary - Mesozoic) basin. Refraction velocities alone are of doubtful value in identifying the floor, as it is known that crystalline basement, metamorphosed sediments, or unmetamorphosed sediments such as limestone, may have velocities within this range.
Google map showing geographic bounding box with values North bound -33.0 East bound 146.0 West bound 140.5 South bound -35.0
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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)

1964

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

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

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-33.0
East bound
146.0
West bound
140.5
South bound
-35.0

TEMPORAL EXTENT

1960-08-01 / 1960-12-31

Lineage

The survey described in this Record was essentially a reconnaissance survey of limited duration with the following main objectives (a) to determine the general cross-sectional outline of the Murray Basin in the east-west direction, including a determination of the thickness of sediments in various parts of the Basin with a view to oil-producing potential, and also including demarcation of Basin margins, (b) to determine the structural significance of known gravity and aeromagnetic anomalies and so provide a basis for interpretation of gravity and aeromagnetic results in the Basin, (c) to determine the structural relation of sediments within and possibly also below, the Murray Basin, (d) to determine the suitability of seismic surveying as a means of prospecting for oil in the Basin. The programme to achieve the above objectives envisaged the use of short reflection traverses at selected locations with gaps of 20 miles or more between them. Refraction 'depth probes' were to be recorded along reflection profiles as required, to establish the thickness of the sediments and the possible nature of the basement rocks. The seismic traverses were to be placed to give a representative cross-section of the Basin, but special attention was to be given to the placement of a traverse across the 'gravity trough' near Wentworth.

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

ded6582b-0f38-725f-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

2013-06-11

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