Simons, FJ;
van der Hilst, RD;
(2002)
Age-dependent seismic thickness and mechanical strength of the Australian lithosphere.
Geophysical Research Letters
, 29
(11)
, Article 1529. 10.1029/2002GL014962.
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Abstract
We present constraints on the regional variations of the seismic and mechanical thickness of the Australian lithosphere. We infer the seismic thickness from a waveform tomographic model of S-wave speed, and as a proxy for the elastic thickness we use the wavelength at which the coherence of surface topography and Bouguer gravity drops below half of its long-wavelength maximum. Our results show that on scales <1000 km the relationship between the age of the crust and the thickness of the lithosphere is more complicated than longer-wavelength or global averages suggest. Recent geochemical and geodynamical evidence for small-scale secular variations of the composition and stability of continental cratons further illustrates the complexity of the age dependence of seismo-mechanical lithospheric properties on regional scales.
| Type: | Article |
|---|---|
| Title: | Age-dependent seismic thickness and mechanical strength of the Australian lithosphere |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1029/2002GL014962 |
| Publisher version: | http://dx.doi.org/10.1029/2002GL014962 |
| Language: | English |
| Additional information: | Copyright 2002 by the American Geophysical Union |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1090 |
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