Authors / CoAuthors
Bryant, C. | Highet, L.
Abstract
<div>Alkaline and related rocks are a relatively rare class of igneous rocks worldwide. Alkaline rocks encompass a wide range of rock types and are mineralogically and geochemically diverse. They are typically though to have been derived by generally small to very small degrees of partial melting of a wide range of mantle compositions. As such these rocks have the potential to convey considerable information on the evolution of the Earth’s mantle (asthenosphere and lithosphere), particularly the role of metasomatism which may have been important in their generation or to which such rocks may themselves have contributed. Such rocks, by their unique compositions and or enriched source protoliths, also have considerable metallogenic potential, e.g., diamonds, Th, U, Zr, Hf, Nb, Ta, REEs. It is evident that the geographic occurrences of many of these rock types are also important, and may relate to presence of old cratons, craton margins or major lithospheric breaks. Finally, many alkaline rocks also carry with them mantle xenoliths providing a snapshot of the lithospheric mantle composition at the time of their emplacement.</div><div><br></div><div>Accordingly, although Alkaline and related rocks comprise only a volumetrically minor component of the geology of Australia, they are of considerable importance to studies of lithospheric composition, evolution and architecture and to helping constrain the temporal evolution of the lithosphere, as well as more directly to metallogenesis and mineralisation.</div><div><br></div><div>This GIS product is part of an ongoing compilation of the distribution and geology of alkaline and related rocks throughout Australia. The accompanying report document alkaline and related rocks of Paleozoic age.</div>
Product Type
dataset
eCat Id
147891
Contact for the resource
Resource provider
Point of contact
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Point of contact
Digital Object Identifier
Keywords
- ( Project )
-
- EFTF – Exploring for the Future
- ( Project )
-
- Australia’s Resources Framework
-
- Australia
-
- Alkaline rocks
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- Igneous rocks
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- Alkaline Rocks Atlas of Australia
- theme.ANZRC Fields of Research.rdf
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- Earth Sciences
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- Published_External
Publication Date
2023-08-07T04:27:11
Creation Date
2023-07-16T22:00:00
Security Constraints
Legal Constraints
Status
completed
Purpose
This GIS project contains spatial representations of alkaline and related rocks of Paleozoic age throughout Australia.
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
<div>This GIS project contains spatial representations of alkaline and related rocks of Paleozoic age throughout Australia.</div>
Parent Information
Extents
[-44, -9, 112, 154]
Reference System
Geocentric Datum of Australia 1994 / geodetic (EPSG: 6283)
Spatial Resolution
Service Information
Associations
Association Type - wasInformedBy
Paleozoic alkaline and related igneous rocks of Australia
eCat Identifier - 147890,
UUID - 63a29e5e-041e-42ad-a540-8125aa442624
Association Type - operatedOnBy
Paleozoic Alkaline And Related Igneous Rocks Of Australia MapServer
eCat Identifier - 149081,
UUID - ee0e42ab-ebce-4cc0-832c-cdbe3528d18c
Association Type - operatedOnBy
Paleozoic Alkaline And Related Igneous Rocks Of Australia WMS
eCat Identifier - 149082,
UUID - cf4a9b57-2cf3-42a0-be2e-5444810568f0
Association Type - operatedOnBy
Paleozoic Alkaline And Related Igneous Rocks Of Australia WFS
eCat Identifier - 149083,
UUID - 1f7163a7-12b0-44b1-bb8c-468641f34226
Downloads and Links
Download Metadata Statement (pdf) [0.9 MB]
Download Data Package (gdb) [5.0 MB]
Download Data Package (shapefile) [9.6 MB]
Download Data Package (mapinfo) [6.9 MB]
Paleozoic Alkaline And Related Igneous Rocks Of Australia WMS
Paleozoic Alkaline And Related Igneous Rocks Of Australia WFS
Paleozoic Alkaline And Related Igneous Rocks Of Australia Map Server
Source Information