Hydrology and sediments of a temperate estuary - Mallacoota Inlet, Victoria

Mallacoota Inlet is a drowned river valley that is almost cut off from the sea by a barrier-beach complex. Additionally, a flood-tidal delta chokes the mouth of the estuary. Except for fluvial sand in the upper reaches of the estuary, sandy sediments are restricted to the seaward end where hydrodynamic activity is greatest. Muds are confined to basinal and deep-channel environments; silts occur where fresh-water discharge contributes to water circulation, and clays where circulation is restricted. In the coarse fraction of the sediments, feldspar and mica contents are highest, and quartz and carbonate are lowest, where fresh-water discharge contributes. The clay mineral assemblage in the estuarine sediments is generally similar to that of the soil and stream sediments in the source area. Geochemical results show that Fe, V, Cr, Ni, Zn, Cu, and P2O5 levels are highest in stagnant areas where organic-rich clay prevails, whereas Mn and Ti are highest in silts where fluvial discharge is dominant and water circulates relatively freely. The results of the study suggest that the restricted basinal areas of the estuary are similar to fjords in terms of physical and chemical controls on sedimentation. The coastal barrier at Mallacoota was evidently formed by landward progradation during the Holocene, and overlies apparent remnants of a similar Pleistocene barrier. Many similar restricted estuaries exist along the south coast of New South Wales.

Simple

Identification info

Date (Publication)
1977-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/86

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Bureau of Mineral Resources, Geology and Geophysics

 Canberra
Author

Reinson, G.E.

 1
Name

Bulletin

Issue identification

178

ISBN

0642029032

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

  • Bulletin

Theme

  • hydrogeology

Theme

  • marine

Keywords

  • AU-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

Download the Bulletin (pdf)

Download the Bulletin (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/a05f7892-9cfe-7506-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

Legacy AGSO BMR Bulletins

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/86

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/a05f7892-9cfe-7506-e044-00144fdd4fa6

Date info (Revision)
2018-04-22T08:29:48
Date info (Creation)
1996-10-29T00:00:00

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


Keywords

hydrogeology marine

Provided by

Access to the portal

Associated resources

Not available