Cainozoic geology and geomorphology of the Wahgi Valley, central highlands of Papua New Guinea

The Wahgi Valley is a structural depression, between the Bismarck Fault Zone to the north and the Kubor Anticline to the south, which has been enlarged by erosional removal of northward-dipping sedimentary rocks on the northern flank of the Kubor Anticline. The geomorphic history of the area began when it became land about 35 Ma ago. The Wahgi Valley contains volcanic debris avalanche and lahar deposits in the west and fluviatile/ lacustrine deposits elsewhere. The latter are dominated by undissected swamp and lake deposits in the west, and dissected fan and terrace deposits in the east. There is clear evidence of knick point retreat up the Wahgi River from the east, causing the fans to trench progressively from the east. Earlier interpretations of the evolution of the Wahgi Valley stressed drainage reorganisation, with reversal of a westerly flowing Wahgi River caused by damming by volcanics in the west, and capture in the east. Evidence from sediments, tephra, and landforms now suggests that reversal was probably restricted to the westernmost drainage, and any reversal of drainage occurred earlier than previously thought, perhaps 400 000 years ago.

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Identification info

Date (Publication)
1987-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81224

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Bureau of Mineral Resources, Geology and Geophysics

 Canberra
Author

Pain, C.F.

 1
Author

Pigram, C.J.

 2
Author

Blong, R.J.

 3
Author

Arnold, G.O.

 4
Name

BMR Journal of Australian Geology and Geophysics

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10:3:267-275

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Commonwealth of Australia (Geoscience Australia)
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Commonwealth of Australia (Geoscience Australia)

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  • Geoscientific information

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W


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Product data repository: Various Formats

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Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • GA Publication

  • Journal

Keywords

  • PNG

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

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CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

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License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified
Language
English
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UTF8

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Commonwealth of Australia (Geoscience Australia)

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OnLine resource

Journal article (pdf)

Journal article (pdf)

Distribution format

  • pdf

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Unknown

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Non geographic dataset
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GA Publication

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Source data not available.

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/fae9173a-70a5-71e4-e044-00144fdd4fa6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
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Commonwealth of Australia (Geoscience Australia)

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Type of resource

Resource scope
Document
Name

AGSO BMR Journal

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/81224

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fae9173a-70a5-71e4-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:09:56
Date info (Creation)
2014-06-03T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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