eCite Digital Repository

The seismic structure of Precambrian and early Palaeozoic terranes in the Lambert Glacier region, East Antarctica

Citation

Reading, AM, The seismic structure of Precambrian and early Palaeozoic terranes in the Lambert Glacier region, East Antarctica, Earth and Planetary Science Letters, 244, (1-2) pp. 44-57. ISSN 0012-821X (2006) [Refereed Article]

DOI: doi:10.1016/i.epsl.2006.01.031

Abstract

The Lambert Glacier region of East Antarctica encompasses the proposed boundary between three of the ancient continents that formed East Gondwana: Indo-Antarctica, the central East Antarctic Craton and a proposed extension of the Pinjarra Orogen of Australia. The only area of extensive rock exposure in central East Antarctica, it uniquely allows the seismic structure to be linked to surface geology. New broadband seismic stations were established at the remote sites of the SSCUA deployment, which ran between the austral summers of 2002/2003 and 2004/ 2005. Recorded energy from distant earthquakes is used to calculate receiver function waveforms that are then modelled to deduce the seismic structure of the upper lithosphere. The results of this study are two-fold. Firstly, seismic structure and crustal depth are determined beneath the Lambert Glacier region providing constraints on its tectonic evolution. A significant contrast in crustal depth is found between the Northern and Southern Prince Charles Mountains that may indicate the location of a major tectonic boundary. Secondly, baseline seismic receiver structures are established for the Rayner, Fisher and Lambert terranes that may be traced beneath the Antarctic ice sheet in the future. © 2006 Elsevier B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geophysics
Research Field:Seismology and Seismic Exploration
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Reading, AM (Professor Anya Reading)
ID Code:46140
Year Published:2006
Web of Science® Times Cited:28
Deposited By:Earth Sciences
Deposited On:2007-08-13
Last Modified:2010-06-05
Downloads:0

Repository Staff Only: item control page