Citation

Geoscience Australia provides most of its products for free under a Creative Commons Attribution 4.0 International Licence. We only require that you reference the use of our data or information using the following citation:
Kennewell, P.J., Mathur, S.P. & Wilkes, P.G., 1977. The Lander Trough, southern Wiso Basin, Northern Territory. BMR Journal of Australian Geology and Geophysics  2:2:131-136. Bureau of Mineral Resources, Geology and Geophysics, Canberra.

Abstract

The Lander Trough forms the east-southeast trending, southern and deeper part of the Wiso Basin, and is flanked on the north by an extensive less deformed area of the Basin. Recent geological mapping, shallow stratigraphic drilling, and a reassessment of geophysical data in the southeastern part of the trough provide additional information on the nature and structure of the rocks it contains. Beneath the Cainozoic superficial material, three sequences of rocks are distinguished. The upper sequence consists of ?Late Palaeozoic Lake Surprise Sandstone; the middle of Cambrian or Ordovician sediments and volcanics; and the lower of Proterozoic rocks. The ?Late Palaeozoic sequence is flat-lying and thin (100-250 m), whereas the Early Palaeozoic sequence forms a wedge which thins to the north and thickens southwards to about 800 m In the deepest part of the trough. The Proterozoic sequence forms the basement to these Palaeozoic sediments of the Wiso Basin. The trough is indicated to be a downwarp in the crust, about 300 km long and 100 km wide, bounded by an overthrust fault system against the Arunta Block on the south. The fault system is considered to be contemporaneous with the post-Devonian Alice Springs Orogeny which affected the NgaIia and Amadeus Basins farther to the south. The presence of a thick (up to 800 m), partly marine sequence of Cambrian and Ordovician sediments upgrades the petroleum potential of the Lander Trough area, as gas has been found in such sediments in the depositionally and structurally similar Amadeus Basin to the south, and the Toko Syncline of the Georgina Basin to the southeast.
Google map showing geographic bounding box with values North bound -20.25 East bound 133.7 West bound 132.75 South bound -21.0
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

nonGeographicDataset - GA Publication - Journal

Constraints

license
Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1977

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Journal
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-20.25
East bound
133.7
West bound
132.75
South bound
-21.0

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

fae9173a-6f77-71e4-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

2015-05-19

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).