Abstract

The Onshore Energy Security Program, funded by the Australian Government and conducted by Geoscience Australia, has acquired deep seismic reflection data across several frontier sedimentary basins to stimulate petroleum exploration in onshore Australia. Interpretation of the new seismic data from these onshore basins, focusing on overall basin geometry, internal sequence stratigraphy and petroleum potential, will be presented here. At the southern end of the exposed part of the Mt Isa Province, northwest Queensland, a deep seismic line (06GA-M6) crossed the Burke River Structural Zone of the Georgina Basin. The basin here is >50 km wide, with a half graben geometry, bounded in the west by a rift border fault. The Millungera Basin in northwest Queensland is completely covered by the Eromanga-Carpentaria Basin and was unknown prior to relatively short segments across the western part of the basin being imaged seismically in two lines (06GA-M4 and 06GA-M5) in 2006. Following this, seismic line 07GA-IG1 imaged a 65 km wide section of the basin. The geometry of internal stratigraphic sequences and a post-depositional thrust margin indicate that the original succession was much thicker than preserved today and there is potential for a petroleum system to exist. The Yathong Trough, in the southeast part of the Darling Basin in NSW, has been imaged in seismic line 08GA-RS2, with several stratigraphic sequences being mapped. Previous studies indicate that the upper part of this basin consists of Devonian sedimentary rocks, with potential source rocks at depth. In eastern South Australia, seismic line 08GA-A1 crossed the Cambrian Arrowie Basin, which is underlain by a Neoproterozoic succession of the Adelaide Rift System. Shallow drillholes have aided the assessment of the petroleum potential of the Cambrian Hawker Group, which contains bitumen in some of the cores, indicating the presence of source rocks in the basin system.
Google map showing geographic bounding box with values North bound -9.0 East bound 168.0 West bound 96.0 South bound -44.0
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Product Type/Sub Type

dataset - External Publication - Conference Paper

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2010

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

External Publication
Conference Paper
sedimentary basins
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-9.0
East bound
168.0
West bound
96.0
South bound
-44.0

Lineage

Unknown

Digital Transfer Options

onLine

DISTRIBUTION Format

pdf

Distributor

Role
distributor
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Metadata File Identifier

a05f7892-f00e-7506-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

2010-03-01

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