Hydrology of Lake Amadeus, a groundwater-discharge playa in central Australia

Lake Amadeus, a large playa in central Australia, is part of a 500 km long groundwater discharge zone, which extends from Lake Hopkins, in Western Australia, to the Finke River. In this zone, groundwater discharges and evaporates at playa surfaces over a total area of 1750 km2. Groundwater flows towards Lake Amadeus in Cainozoic sediments which overlie fractured Proterozoic bedrock. Sediments beneath the lake bed are saturated with sodium-magnesium chloride rich brine, which contains about 250 g/L total dissolved solids. The lake bed is generally dry and contains areas of heaved gypsum ground and slightly lower, flat, halite-encrusted zones which are occasionally flooded. Gypsum is actively precipitating in the capillary zone above the water-table, which is generally at a depth of 0.30-0.50 m. In Lake Amadeus and other nearby playas the total mass of salt stored is estimated as about 6000 million tonnes and this has accumulated in about 12000 years. Water-budget calculations show that groundwater recharge in the catchment of 90 000km2 is approximately 1 mm/year, which is only 0.4 per cent of the incident rainfall.

Simple

Identification info

Date (Publication)
1988-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81227

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Bureau of Mineral Resources, Geology and Geophysics

 Canberra
Author

Jacobson, G.

 1
Name

BMR Journal of Australian Geology and Geophysics

Issue identification

10:4:301-308

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

  • NT

  • WA

  • SA

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-70a8-71e4-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/81227

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fae9173a-70a8-71e4-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:08:17
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



Provided by

Access to the portal

Associated resources

Not available