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Northern Lawn Hill Platform Depth Structure and Isochore Mapping Update

The Paleo-Mesoproterozoic Isa Superbasin is located in northwestern Queensland and is part of the geologically complex and resource rich Mount Isa Province. Over the last five years, the Northern Lawn Hill Platform (NLHP) in the northern part of the Isa Superbasin has become a focus for frontier conventional and unconventional hydrocarbon exploration. Thick and extensive organic-rich shale units in the River and Lawn supersequences are of particular interest for unconventional shale gas exploration following a gas discovery in 2014 from the Lawn Shale at Egilabia-2 DW1. Potential shale gas resources in these stratigraphic intervals include 22.1 Tcf of prospective gas and 0.15 Tcf of contingent (2C) gas resources (Armour Energy, 2014 and 2015). Other conventional and unconventional plays may also occur in overlying stratigraphic units within the Isa Superbasin. However despite the increased interest in the region’s petroleum prospectivity, the data coverage across the Isa Superbasin is sparse and aspects of the regional geological framework remain ambiguous.

This report presents an update to seismic and well interpretation in the Isa Superbasin originally undertaken in the late 1990’s as part of the North Australian Basins Resource Evaluation (NABRE) Project in the NLHP, the area with the greatest concentration of data and petroleum exploration activity. The NABRE Project focussed on developing an integrated structural and stratigraphic framework for the NLHP in the context of understanding and predicting sediment-hosted mineral deposits. However, the project did not produce depth-converted structure or isopach maps, which are required for assessing and mapping conventional and unconventional petroleum plays. Assessments of the area’s resource potential would also benefit by incorporating some key recently acquired data sets and published research with the original NABRE work. The original NABRE work has therefore been updated to include interpretations from new seismic and well data, and to generate depth-converted structure and isopach maps for eight key stratigraphic horizons of interest for petroleum exploration in the NLHP. Major sub-surface structures are also formally defined and named based on the depth-structure maps.

The review of the Isa Superbasin geological framework presented here underpins work on two major federal government initiatives, the Exploring For The Future Program and Geological and Bioregional Assessment Program. Recommendations are included in this report on further value adding work that could supplement these programs to better inform prospectivity assessment.

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Identification info

Date (Creation)
2018-12-04T00:00:00
Date (Publication)
2018-12-12T00:17:06
Date (Revision)
2019-03-07T04:20:27
Date (Revision)
2019-04-09T02:35:27
Date (Revision)
2019-05-20T05:03:48
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/124259

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.11636/Record.2018.047

Cited responsible party
Role Organisation / Individual Name Details
Author

Bradshaw, B.E.

Author

Orr, M.L.

Author

Bailey, A.H.E.

Author

Palu, T.J.

Author

Hall, L.S.

Issue identification

2018/047

Status
Completed
Point of contact
Role Organisation / Individual Name Details
Point of contact

Bradshaw, B.

Resource provider

Resources Division

Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice
Spatial representation type
Topic category
  • Geoscientific information

Extent

Extent

N
S
E
W


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
  • Paleo-Mesoproterozoic Isa Superbasin

Theme
  • Mount Isa Province

Theme
  • seismic

Theme
  • well interpretation

theme.ANZRC Fields of Research.rdf
  • EARTH SCIENCES

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

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

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

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 Record (docx)

Download the Record (docx)

Distribution format
  • docx

OnLine resource

Download the Record (pdf)

Download the Record (pdf)

Distribution format
  • pdf

OnLine resource

Download the data package

Download the data package

Resource lineage

Statement

No lineage available

Hierarchy level
Document
Source
  • Northern Lawn Hill Platform Depth Structure and Isochore Mapping Update: data release

Reference System Information

Reference system identifier
EPSG/GDA94 / MGA zone 54 (EPSG:28354)

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/c5ad9e04-6ea8-4a59-aff7-2111fb301617

Title

GeoNetwork UUID

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

Bradshaw, B.

Commonwealth of Australia (Geoscience Australia)

Voice

Type of resource

Resource scope
Document
Name

GA publication: Record

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/124259

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/c5ad9e04-6ea8-4a59-aff7-2111fb301617

Date info (Creation)
2018-05-04T03:37:56
Date info (Revision)
2018-05-04T03:38:12

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

N
S
E
W


Keywords

Mount Isa Province Paleo-Mesoproterozoic Isa Superbasin seismic well interpretation
theme.ANZRC Fields of Research.rdf
EARTH SCIENCES

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