Authors / CoAuthors
Clarke, G.L. | Sun, S.S. | White, R.W.
Abstract
During 1.3-1.0 Ga, multiple magmatic/tectonic events, causally linked to extensive mantle melting, markedly affected the Musgrave Block, the Albany-Fraser belt and parts of the east Antarctic shield. It is possible that southern parts of the central Australian Arunta Block were also affected by this event. Equivalent terranes can be juxtaposed in conventional Gondwana reconstructions of southwestern Australia and Antarctica. Effects of a ~1060 Ma Gondwana-wide magmatism include areally extensive dyke swarms and volcanics of the central Australian Bentley Supergroup. It is unclear to what extent the effects of a ~550 Ma convergent event that resulted in significant crustal overthickening and high-P recrystallisation in Musgrave Block rocks can be extrapolated to neighbouring terranes. Nonetheless, this event may be indicative of plate margin processes of latest Neoproterozoic age that controlled the assembly of central Australia.
Product Type
document
eCat Id
81419
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
-
- GA PublicationJournal
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
- Earth Sciences
-
- Published_External
Publication Date
1995-01-01T00:00:00
Creation Date
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
unknown
Topic Category
geoscientificInformation
Series Information
AGSO Journal of Australian Geology and Geophysics 16:1-2:25-39
Lineage
Unknown
Parent Information
Extents
Reference System
Spatial Resolution
Service Information
Associations
Source Information
Source data not available.