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The "Geera Clay equivalent": a regressive marine unit in the Renmark Group that sheds new light on the age of the Mologa weathering surface in the Murray Basin

Sandy clays deposited during the waning phase of Oligocene-Middle Miocene transgression of the Murray Basin conformablyoverlie the shallow to marginal marine Geera Clay and grade laterally into fluvio-Iacustrine sediments of the Middle and Upper Renmark Group. These sandy clays (informally named "Geera Clay equivalent") and the Geera Clay preserve marine dinoflagellates that became extinct by middle to late Middle Miocene time. If the subsequent regression was due to a global drop in relative sealevel, then we propose that the unconformity developed across the Geera Clay and that the lateral equivalents during the Late Miocene (Mologa weathering surface) correlates with either the 13.8 Ma or (preferred) 10.5 Ma sequence boundary of Haq and others (1987). Three pollen species of potential biostratigraphic value in the Murray Basin are illustrated and discussed. One new species is described: Tetrapollis campbellbrownii.

Simple

Identification info

Date (Publication)
1993-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81335

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Australian Geological Survey Organisation

Canberra
Author

Macphail, M.K.

1
Author

Kellett, J.R.

2
Author

Rexilius, J.P.

3
Author

O'Rorke, M.E.

4
Name

AGSO Journal of Australian Geology and Geophysics

Issue identification

14:1:47-63

Point of contact
Role Organisation / Individual Name Details
Custodian

Corp

Owner

Commonwealth of Australia (Geoscience Australia)

Custodian

Commonwealth of Australia (Geoscience Australia)

Voice
Topic category
  • Geoscientific information

Extent

N
S
E
W


Maintenance and update frequency
Unknown

Resource format

Title

Product data repository: Various Formats

Website

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
  • NSW

  • SA

  • VIC

Australian and New Zealand Standard Research Classification (ANZSRC)
  • Earth Sciences

Keywords
  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

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

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

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

Voice
OnLine resource

Journal article (pdf)

Journal article (pdf)

Distribution format
  • pdf

Resource lineage

Statement

Unknown

Hierarchy level
Non geographic dataset
Other

GA Publication

Description

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-7114-71e4-e044-00144fdd4fa6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

Voice

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/81335

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fae9173a-7114-71e4-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:07:55
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

 
 

Spatial extent

N
S
E
W



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