Product catalogue
Triassic Horizon Grids, Isochron Grids, and Fault Maps, Central North West Shelf
<p>A regional mapping program conducted by Geoscience Australia addressed stratigraphic and structural aspects of exploration risk within the Triassic succession of the Roebuck Basin and parts of the adjacent sub-basins (central North West Shelf, Figure 1).
<p>Seismic horizons of regional significance were mapped using 2D and 3D seismic surveys. Seismic survey coverage is shown in Figure 1. 2D surveys include regional deep surveys such as AGSO s110, AGSO s120, and PGS New Dawn. 3D surveys include Admiral, Beagle, CNOOC, Curt, Lord, Naranco, Polly, Whitetail, and a 5 x 5 km extract (used with permission) from the TGS Capreolus MC3D. Synthetic seismograms (Nguyen et al., 2019) were used to tie seismic horizons to wells.
<p>The mapped horizons are placed within a regional tectonostratigraphic framework by Abbott et al. (2019, their Figure 2). This data pack comprises seismic horizon grids and isochron grids generated from the TR10.0_SB (base Triassic), TR17.0_SB (Mid–Triassic), and J10.0_SB (top Triassic) seismic horizons (Figure 2). Fault maps compiled at the TR10.0 _SB and J10.0_SB are also included.
Simple
Identification info
- Date (Creation)
- 2019-05-27T00:00:00
- Date (Publication)
- 2019-05-23T04:03:27
- Date (Revision)
- 2019-05-30T07:29:48
- Date (Revision)
- 2019-09-22T23:44:50
- Date (Revision)
- 2019-09-23T00:58:32
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/128417
Identifier
- Codespace
-
Digital Object Identifier
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.26186/5ce61be53badc
- Cited responsible party
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Role Organisation / Individual Name Details Author Orlov. C.
Author Abbott, S.T.
Author Bernardel, G.
Author Nicholson, C.
Author Rollet, N.
Author Nguyen, D.
Author Gunning, M.
- Purpose
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Pre-competitive data package release
- Status
- Completed
- Point of contact
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Abbott, S.T.
Resource provider Resources Division
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Temporal extent
- Time period
- 2019-05-23 2019-05-23
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
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
- theme.ANZRC Fields of Research.rdf
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Basin Analysis
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EARTH SCIENCES
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Petroleum and Coal Geology
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- Place
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North West Shelf
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- Place
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Roebuck Basin
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- Place
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Rowley Sub-basin
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- Place
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Bedout Sub-basin
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- Place
-
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Barcoo Sub-basin
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- Place
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Beagle Sub-basin
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- Place
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Exmouth Plateau
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- Temporal
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Triassic
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- Discipline
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Petroleum exploration
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- Discipline
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stratigraphy
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- Keywords
-
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Download the data pack
Download the data pack
- Distribution format
-
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various
- File decompression technique
-
7zip
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Resource lineage
- Statement
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Seismic horizons were mapped on 2D and 3D marine seismic surveys using GeoFrame and DUG Insight interpretation software. All horizon data was compiled in DUG Insight where 3D interpretation was given preference over less detailed 2D interpretation. Horizon and and isochron grids were generated in Petrosys software using a 1 km cell size, the standard gridding operation, a minimum-curvature gridding algorithm, and a smoothing value of 2. Horizon grid generation was constrained by faults. Grids were exported from Petrosys in ESRI BIL and ASCII XYZ formats. Fault polylines on 2D surveys were mapped in GeoFrame. Line spacing was often too coarse to map faults using 2D surveys. Fault polylines on selected 3D surveys were mapped in ArcGIS on seismic incoherence timeslices generated in DUG Insight. Fault maps were compiled as ArcGIS shapefiles using polylines from 2D and 3D surveys.
Reference System Information
- Reference system identifier
- EPSG/WGS 84 / UTM zone 50S (EPSG:32750)
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/a4df3296-3393-4877-a9bb-075ab6d138c6
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Abbott, S.T.
Type of resource
- Resource scope
- Document
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/128417
- Date info (Creation)
- 2019-04-29T23:59:23
- Date info (Revision)
- 2019-04-29T23:59:23
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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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