Abstract

Our understanding of the geological history and evolution of many parts of Australia is at the reconnaissance level. This is true to a large extent for much of the Proterozoic of North Australia. We have reasonably good 1:250,000 scale geological maps {and in small parts even better 1:100,000 maps} which show the distribution of rock units and the broad structural features of the exposed sequences. However, in most areas we only have rudimentary ideas on tectonic setting and geological evolution because of a lack of isotopic dating and detailed structural and sedimentological studies. Coherent analyses of basin type, configuration, and evolution, in the framework of modern plate tectonic models, are not available for much of the North Australian Proterozoic. The information presented in this guide book results largely from detailed stratigraphic and sedimentological studies undertaken between 1977 and 1981 in the McArthur River region, supplemented by surface and drillcore studies in 1984/85 near the Roper River. Unfortunately, these more detailed studies cover only about half of the area defined as the McArthur Basin and as noted below this 'basin' is probably only part of a much larger depositional feature. Therefore, even after some detailed studies our knowledge is fragmentary and incomplete and our interpretations somewhat tentative. The results from the sedimentological studies in the McArthur River region have been compiled in detail in BMR Bulletin 220 {Jackson & others, in press}. We had hoped that this would be available for the excursion; unfortunately, this has not been possible. As there is no other satisfactory synthesis of this information we have condensed and summarised relevant parts of it and included these in the guide book. A 1:100,000 scale geological map of the area containing most of the localities we shall visit is included with this guide book.
Google map showing geographic bounding box with values North bound East bound West bound South bound
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Product Type/Sub Type

nonGeographicDataset - GA Publication - Conference Paper

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1986

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Conference Paper
sedimentology
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

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Unknown

Digital Transfer Options

onLine

DISTRIBUTION Format

pdf

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

Metadata File Identifier

a05f7893-006d-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

1999-07-16

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

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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