Abstract

A Devonian microvertebrate fauna from the NDahla Member, previously assigned to the Cambro-Ordovician Pacoota Sandstone, has led to a revision of the stratigraphy in the Ross River Syncline. The NDahla Member is included in the Devonian Pertnjara Group, and is correlated on faunal evidence with the Deering Siltstone Member of the Parke Siltstone in the central Amadeus Basin. The overlying sandstone, previously mapped as Mereenie Sandstone, is presumed to be equivalent to one of the overlying formations of the Pertnjara Group. The NDahla Member rests with angular unconformity on the underlying Pacoota Sandstone, this break possibly representing both the Rodingan and Pertnjara Movements of other authors. Evidence of the Devonian Pertnjara Movement in the Amadeus Basin is reviewed, and the possibility that the Mereenie Sandstone was never deposited in the Ross River sequence is discussed. The recognition of Mereenie Sandstone in other outcrops and wells in the eastern part of the Amadeus Basin requires re-examination.
Google map showing geographic bounding box with values North bound -21.69 East bound 136.73 West bound 125.39 South bound -25.91
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Product Type/Sub Type

nonGeographicDataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1987-01-01T00:00:00

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

GA Catalogue Number

81220 Product http://www.ga.gov.au/metadata-gateway/metadata/record/81220/

Keywords

GA Publication
Journal
NT
WA
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-21.69
East bound
136.73
West bound
125.39
South bound
-25.91

Lineage

Unknown

Digital Transfer Options

onLine

Distributor

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

Source Description

Source data not available.

Metadata File Identifier

fae9173a-70a1-71e4-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 SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
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