Abstract

The Bureau of Mineral Resources'No. 2 seismic party conducted a Survey over the Palm Valley Anticline 80 miles west of Alice Springs, from 2nd November to 22nd November 1961. The seismic reflection method showed (a) the anticlinal structure existed at depth and (b) at the northern end of the main north-south traverse in the Missionary Plains north-dipping reflections were recorded from about 2500-ft depth. A shallow refractor was recorded in which the velocity Was 17,800 ft/sec. This refractor, which could not be positively identified, prevented, any useful deeper refraction information being recorded.
Google map showing geographic bounding box with values North bound -23.75 East bound 133.0 West bound 132.25 South bound -24.25
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Product Type/Sub Type

dataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1963-01-01T00:00:00

Product Type

dataset

Topic Category

geoscientificInformation

GA Catalogue Number

76431 Product http://www.ga.gov.au/metadata-gateway/metadata/record/76431/

Keywords

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

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-23.75
East bound
133.0
West bound
132.25
South bound
-24.25

TEMPORAL EXTENT

1961-11-02 / 1961-11-22

Lineage

Following a request in March 1961 by Magellan Petroleum Corporation, it was decided that the Bureau of Mineral Resources' No. 2 seismic party would, on completion of the Amadeus Basin survey, conduct a short survey over the Palm Valley Anticline. The objectives of this survey were as follows: (a) to test the applicability of the seismic method in the area, (b) to confirm the anticlinal structure at depth, (c) to determine the thickness of the Pertnjarra-Mareenie interval, (d) to determine the total depth of sediments. It was found that along the proposed reflection traverse in the Finke River bed, which cut through the surface expression of the anticline: (a) shot holes were difficult to drill in the gravel and would not stay open, (b) movement of vehicles was difficult in the deep, loose sand, (c) seismic records from a small pattern of shallow holes were noisy and showed no reflected energy. It was decided to move the traverse out of the river bed to the plains north of the outcrops and to record: (a) a reflection traverse perpendicular to the strike, (b) a refraction depth probe along the strike. Good reflections were obtained, and therefore a velocity survey was recorded on the traverse along strike. A high-velocity refractor (17,800 ft/sec) in the Pertnjarra series prevented any useful deeper information being obtained by refraction with offsets up to 6 miles. In the remainder of the time available, one mile of reflection traverse was shot in the bed of the River Finke south of the crest of the anticline. Single shots at a depth of 40 feet were used in shet holes in bedrock exposed as sandstone ledges at the edge of the canyon. The records obtained were of sufficient quality to prove the anticlinal structure at depth.

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

Source data not available.

Metadata File Identifier

ded6582b-0f3d-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 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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