Authors / CoAuthors
Bottrill, R.S. | Brown, A.V. | Calver, C.R. | Corbett, K.D. | Green, G.R. | McClenaghan, M.P. | Pemberton, J. | Seymour, D.B. | Taheri, J.
Abstract
The folded Proterozoic and Palaeozoic rocks of Tasmania are host to a wide variety of mineral deposits, some of which are of world-class significance. The Proterozoic sequences host known iron ore, gold, copper and non-metallic mineralisation, but have not been intensively explored and have considerable potential for further discoveries, of both the known deposit types and a number of other sediment-hosted mineralisation types. Early Cambrian ultramafic/mafic complexes, now thought to be allochthonous, have historically given platinum-group minerals, chromite and nickel. The Middle- Late Cambrian Mt Read Volcanics, host to known world-class VHMS- gold deposits and intensively explored, are still considered to represent a prime exploration target. Disseminated zinc-lead mineralisation of possible Irish style has recently been recognised in Ordovician platform carbonate sequences in western Tasmania. Widespread mineralisation related to the intrusion of Middle Devonian- early Carboniferous granitoids includes tin-tungsten, silver-lead and slate-belt gold, and there is considerable potential for the discovery of further similar deposits. Recent advances in the recognition of structural complications caused by major thrust faulting have in some cases increased the known and perceived possibilities for potential sites of mineralisation. The late Carboniferous and younger cover rocks have traditionally been a barrier to mineral exploration, but geophysical flagging of favourable host sequences in the basement below these rocks, together with the discovery of mineralisation in basement inliers, suggests considerable mineral potential in the basement.
Product Type
document
eCat Id
81512
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
-
- GA PublicationJournal
-
- TAS
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
- Earth Sciences
-
- Published_External
Publication Date
1998-01-01T00:00:00
Creation Date
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
unknown
Topic Category
geoscientificInformation
Series Information
AGSO Journal of Australian Geology and Geophysics 17:3:123-143
Lineage
Unknown
Parent Information
Extents
[-44.22, -39.41, 143.31, 149.37]
Reference System
Spatial Resolution
Service Information
Associations
Source Information
Source data not available.