Citation

Bradshaw, J., 1990. Geological Cross-section of the Wessel Rise, Eastern Arafura Basin. Record  1990/077. Bureau of Mineral Resources, Geology and Geophysics, Canberra.

Abstract

The eastern Arafura Basin contains a sedimentary sequence over 12 km thick, comprising Mid Proterozoic, Cambrian, Ordovician, Devonian, Cretaceous and Tertiary aged sediments. Analysis is dependant on jump correlation to the well data that occurs outside the area in the Goulburn Graben, and to the outcrop in the Wessel Islands. The thicknesses present include up to 1 km of Mesozoic, 2 to 3.5 krn of Lower Palaeozoic and over 9 km of Mid Proterozoic. The Mesozoic sequence thickens to the east, and the Palaeozoic and Proterozoic thicken to the north and northeast. Excellent source potential occurs within the Proterozoic and Lower Palaeozoic, and good potential exists for both seal and reservoir units within the Palaeozoic. Low geothermal gradients enhance the prospectivity of the Palaeozoic in this area. Very little structuring is evident in the Phanerozoic, but a major angular unconformity is present within the Mid Proterozoic sequence.
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Product Type/Sub Type

nonGeographicDataset - GA Publication - Record

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1990

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Record
stratigraphy
structural geology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Lineage

Legacy product, lineage not available

Digital Transfer Options

onLine

DISTRIBUTION Format

pdf
tif

Distributor

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

Metadata File Identifier

a05f7892-eef8-7506-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

1999-08-10

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