MICHAEL MANGA: Recent Refereed Publications
Manga, M. and R.J. O'Connell (1995) The tectosphere and postglacial rebound,
Geophysics Research Letters, vol. 22, 1949-1952.
Large lateral variations in the thickness of the lithosphere and viscosity of the
mantle may be associated with continental roots.
The effects of continental roots, or the tectosphere, on postglacial rebound
is calculated using an axisymmetric flow model in which both the mantle and
lithosphere are described as Newtonian fluids.
Continental roots are shown to have a measurable effect on
postglacial rebound, in particular, on the evolution of the peripheral
bulge. Effects of continental roots are concentrated near
the edge of the tectosphere, and thus often near ocean-continent
boundaries where many relative sea-level histories are measured.
The pattern and distribution of tectonic and seismic activity associated with
deglaciation are affected by a tectosphere.
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