Citation

Geoscience Australia provides most of its products for free under a Creative Commons Attribution 3.0 Australia Licence. We only require that you reference the use of our data or information using the following citation:
Wells, A.T. & O'Brien, P.E., 1995. Geology and Petroleum Potential of the Clarence-Moreton Basin, New South Wales and Queensland. Scale 1:500000. Bulletin  241. Australian Geological Survey Organisation, Canberra.

Abstract

The Triassic to Jurassic Clarence-Moreton Basin presented many challenging problems when it was first proposed for study in the Onshore Sedimentary Basins Program of the then Bureau of Mineral Resources (since renamed Australian Geological Survey Organisation, AGSO). Covering about 27 000 km2 , and containing up to 3 km of dominantly continental sediments (see Fig. 1 of Wells & O'Brien, this Bulletin, p. 4), the basin was little understood before this study. No comprehensive basinwide synthesis had ever been undertaken, and the regional stratigraphic framework of the basin was unknown. The predominantly fluvial sediments include important coal measures. These were considered to be a potential hydrocarbon source, although there had been no up-to-date assessment of petroleum source rocks and petroleum potential, and data on which to base a meaningful sedimentological analysis were limited. The main aim of the project was, therefore, to understand the evolution of the basin. This was to be achieved principally through sedimentological research, and by interpretation of industry seismic surveys, and an AGSO deep-crustal seismic study. Most of the objectives of the project were achieved, and the major results are documented in the papers in this Bulletin. Other papers reporting results of the research are listed in the references at the end of each paper. A folio of maps, which includes isopachs, structure contours, potential fields, and locality maps, is being produced as a separate publication. A major research interest to be addressed during the project was the interaction of tectonics, climate and sea level, and its effect on patterns of sedimentation, sediment provenance, dispersal and composition in the basin. Distinguishing the effects of eustatic sea-level change on the history of sedimentary basins from those caused by tectonic events is a major problem in many sedimentary provinces. The succession in the Clarence-Moreton Basin includes an important marker bed of ferruginous oolite, which in some sections includes acritarchs. The origin of the oolite was an enigma, and it was hoped that research into its origin would substantiate its usefulness as a marker zone, and help in understanding the relative merits of eustatic sea level changes versus tectonic events in stratigraphic interpretation. The geological investigations of the Clarence-Moreton Basin concentrated chiefly on the Bundamba Group, a Late Triassic to Early Jurassic succession; the name had been originally used for the largely coal-barren sediments sandwiched between the Ipswich Coal Measures below and the Walloon Coal Measures above. The Bundamba Group covers a large area, and posed major problems in nomenclature and correlation from one end of the basin to the other, besides containing potential petroleum source rocks. Of the overlying formations, the Kangaroo Creek Sandstone and Grafton Formation were not studied in detail, as they have little petroleum potential and no particular problems of nomenclature. However, the Walloon Coal Measures, although they have almost no natural outcrop, contain petroleum source rocks, and were included in the organic geochemistry program.
Google map showing geographic bounding box with values North bound -26.0 East bound 154.0 West bound 150.5 South bound -30.5
Downloads
For information on acquiring this product,
please contact Geoscience Australia Client Services via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).

Product Type/Sub Type

dataset - GA Publication - Bulletin

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1995

Product Type

dataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Bulletin
geology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-26.0
East bound
154.0
West bound
150.5
South bound
-30.5

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-fe78-7506-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

2014-02-14

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 Geoscience Australia Client Services via:

fax:
+61 2 6249 9960; or
phone:
1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).