Geology of the Stillwell Hills

The Stillwell Hills region comprises granulite facies gneisses which record evidence for multiple periods of deformation and metamorphism spanning more than 2500 Million years. The predominant orthogneiss package (Stillwell Orthogneiss) represents the margin of an Archaean craton exposed in Enderby...

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Bibliographic Details
Other Authors: Geoscience Australia (isOwnedBy)
Format: Dataset
Language:unknown
Published: data.gov.au
Subjects:
25K scale
Antarctic data
Geological Map
Geology
marine
Antarctic
Dovers
Point Noble
Scoresby
Stefansson
Stillwell Hills
Antarc*
Enderby Land
Online Access:https://researchdata.edu.au/geology-stillwell-hills/1936329
http://data.gov.au/dataset/d1bf9f10-3b92-4f2d-9519-880dd7c772fa
Description
Summary:The Stillwell Hills region comprises granulite facies gneisses which record evidence for multiple periods of deformation and metamorphism spanning more than 2500 Million years. The predominant orthogneiss package (Stillwell Orthogneiss) represents the margin of an Archaean craton exposed in Enderby Land, some 150 km to the west that was reworked during the late Proterozoic. Younger additions to the crust include Palaeoproterozoic charnockitic gneiss (Scoresby Charnockite) and Meso-Neoproterozoic mafic sills and dykes (Point Noble Gneiss, Kemp Dykes) and felsic pegmatites (Cosgrove Pegmatites). Subordinate supracrustal rocks, including metaquartzite, metapelitic, metapsammitic and calc-silicate gneiss (Dovers Paragneiss, Sperring Paragneiss, Stefansson Paragneiss, Keel Layered Paragneiss, Ives Gneiss) are intercalated and interfolded with the Archaean-Palaeoproterozoic orthogneisses.\n\nYou can also purchase hard copies of Geoscience Australia data and other products at http://www.ga.gov.au/products-services/how-to-order-products/sales-centre.html Download the file (pdf) - Download the file (pdf)

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