Pliocene-Pleistocene glaciomarine sedimentation in eastern Prydz Bay and development of the Prydz trough-mouth fan, ODP Sites 1166 and 1167, East Antarctica

Lithostratigraphy, grain sizes and down-hole logs of Site 1166 on the continental shelf, and Site 1167 on the upper slope, are analyzed to reconstruct glacial processes in eastern Prydz Bay and the development of the Prydz trough-mouth fan. In eastern Prydz Bay upper Pliocene-lower Pleistocene glaciomarine sediments occur interbedded with open-marine muds and grade upward into waterlaid tills and subglacial tills. Lower Pleistocene sediments of the trough-mouth fan consist of coarse-grained debrites interbedded with bottom-current deposits and hemipelagic muds, indicating repeated advances and retreats of the Lambert Glacier-Amery Ice Shelf system with respect to the shelf break. Systematic fluctuations in lithofacies and down-hole logs characterize the upper Pliocene-lower Pleistocene transition at Sites 1166 and 1167 and indicate that an ice stream advanced and retreated within the Prydz Channel until the mid Pleistocene. The record from Site 1167 shows that the grounding line of the Lambert Glacier did not extend to the shelf break after 0.78 Ma. Published ice-rafted debris records in the Southern Ocean show peak abundances in the Pliocene and the early Pleistocene, suggesting a link between the nature of the glacial drainage system as recorded by the trough-mouth fans and increased delivery of ice-rafted debris to the Southern Ocean.

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Date (Publication)
2003-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/70229

Citation identifier
Digital Object Identifier/http://dx.doi.org/10.1016/S0025-3227(03)00160-9

Cited responsible party
Role Organisation / Individual Name Details
Author

Passchier, S.

 1
Author

O'Brien, P.E.

 2
Author

Damuth, J.E.

 3
Author

Janusczak, N.

 4
Author

Handwerger, D.

 5
Author

Whitehead, J.M.

 6
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199

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

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Topic category
  • Geoscientific information

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N
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W


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Unknown
Keywords

  • External Publication

  • Scientific Journal Paper

Theme

  • Antarctic data

Theme

  • geomorphology

Theme

  • sedimentary basins

Theme

  • marine

Keywords

  • AQ

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

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Creative Commons Attribution 4.0 International Licence

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CC-BY

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4.0

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http://creativecommons.org/licenses/

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License

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Australian Government Security ClassificationSystem

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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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Non geographic dataset
Other

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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/a05f7892-f6b9-7506-e044-00144fdd4fa6

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GeoNetwork UUID

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

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Non geographic dataset
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nonGeographicDataset

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Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/70229

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a05f7892-f6b9-7506-e044-00144fdd4fa6

Date info (Revision)
2018-04-22T08:16:09
Date info (Creation)
2010-03-17T00:00:00

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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N
S
E
W


Keywords

Antarctic data geomorphology marine sedimentary basins

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