Seismic structure and anisotrophy in southern Africa's lithosphere : constraints from broad-band surface-wave dispersion
Citation:
Joanne M.-C. Adam, 'Seismic structure and anisotrophy in southern Africa's lithosphere : constraints from broad-band surface-wave dispersion', [thesis], Trinity College (Dublin, Ireland). Department of Geology, 2013, pp 219Download Item:
Abstract:
Southern Africa contains some of the oldest crust on Earth, with the Archean Kaapvaal Craton
bordered to the North by the Archean-Paleoproterozoic Limpopo belt. To understand
the mechanisms of deformation of the Archean craton during and since their formation, I
mapped the anisotropic structure of their lithosphere that preserved a record of this deformation. I measured surface-wave dispersion curves between station pairs across this region and merged them into subsets characterizing four sub-regions within southern Africa. I obtained accurate dispersion curves for each subset in broad period ranges and inverted them for robust profiles of shear velocity and azimuthal anisotropy spanning the depth range from the upper-crust to the asthenosphere.
Author: Adam, Joanne M.-C.
Advisor:
Lebedev, SergeiQualification name:
Doctor of Philosophy (Ph.D.)Publisher:
Trinity College (Dublin, Ireland). Department of GeologyNote:
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Full text availableKeywords:
Geology, Ph.D., Ph.D. Trinity College DublinMetadata
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