North West Margin Transects : Survey 128 Post-cruise Report

The North West Margin Transects Cruise (Survey 128) forms part of a programbeing undertaken by AGSO to determine the structural architecture of the north-western margin of Australia and the influence of structuring on the location,migration and trapping of hydrocarbons in the region. An important aspect of thisprogram is the acquisition of a series of full margin 'dip transects extending fromunrifted cratonic basement to beyond the continent-ocean boundary, and at leasttwo 'strike' transects that will extend along the full length of the shelf from theeastern Timor Sea to North West Cape. The major objective of Survey 128 was toextend previous AGSO deep-seismic surveys across the Browse (Survey 119),offshore Canning (SNOWS-3/Survey 120) and northern Camarvon basins (SNOWS-1/Survey 101, SNOWS-2/Survey 110) to complete these margin transects.


The survey vessel Rig Seismic left Port Hedland on 30 May 1994. A weather buoy0^was deployed for the Bureau of Meteorology at the beginning of the survey. Seismic acquisition commenced on 4 June 1994. The survey was completed on 25 June0^and finished in Fremantle on 30 June 1994. During the survey, 11 seismic lineswere completed for a total of 3403.05 km at an average of 155 km per day (based on 22 days of acquisition). Transits between lines amounted to more than 800 km. The survey ties into the 1991 SNOWS-1 (101), 1992 SNOWS-2 (110), 1993 Browse Basin (119) and SNOWS-3 (120) deep-seismic surveys, and the 1990 standardrecord length Triassic Reef Survey (95).


The data were recorded from a 4800 m streamer, configured with 192 x 25 m active groups. Data were recorded with a 16 s record length and a 2 ms sample interval.The seismic source consisted of dual sleeve gun arrays with a total capacity of 50 litres, and was fired every 50 metres to give 48-fold CDP coverage. Navigation for the survey was provided by differential Global Positioning System (dGPS), using shore reference stations in Dampier, Broome, Perth and Darwin.


Both the seismic and non-seismic acquisition systems ran without major problems. Navigational data were of good quality, with differential GPS being available for more than 95% of the survey.

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Identification info

Date (Publication)
1994-01-01T00:00:00
Date (Revision)
2019-04-08T05:52:36
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/14739

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Australian Geological Survey Organisation

 Canberra
Author

Struckmeyer, H.I.M.

 1
Name

Record

Issue identification

1994/037

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Role Organisation / Individual Name Details
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ED
Owner

Commonwealth of Australia (Geoscience Australia)
Custodian

Commonwealth of Australia (Geoscience Australia)

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Topic category
  • Geoscientific information

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Unknown

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Product data repository: Various Formats

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Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • GA Publication

  • Record

Theme

  • structural geology

Theme

  • petroleum exploration

Theme

  • marine survey

Theme

  • hydrocarbons

Theme

  • marine

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

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Creative Commons Attribution 4.0 International Licence

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CC-BY

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4.0

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http://creativecommons.org/licenses/

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License

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Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified
Language
English
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UTF8

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Commonwealth of Australia (Geoscience Australia)

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OnLine resource

Download the Record (pdf)

Download the Record (pdf)

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  • pdf

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Legacy product, lineage not available

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Non geographic dataset
Other

GA Publication

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Legacy product, source data not available.

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/a05f7892-7459-7506-e044-00144fdd4fa6

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GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

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Type of resource

Resource scope
Document
Name

GA Record

Alternative metadata reference

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Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/14739

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a05f7892-7459-7506-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:14:37
Date info (Creation)
1999-08-09T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

Keywords

hydrocarbons marine marine survey petroleum exploration structural geology

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