Aspects of the Structure, Tectonic Evolution and Sedimentation of The
ASPECTS OF THE STRUCTURE , TECTONIC EVOLUTION AND SEDIMENTATION OF THE TYGERBERG TERRANE, SOUTIDvESTERN CAPE PROVINCE . M.W. VON VEH . 1982 University of Cape TownDIGITISED 0 6 AUG 2014 A disser tation submitted to the Faculty of Science, University of Cape Town, for the degree of Master of Science. T VPI'l th 1 v.h le tJ t or m Y '• 11 • 10 uy the auth r. The copyright of this thesis vests in the author. No quotation from it or information derived from it is to be published without full acknowledgement of the source. The thesis is to be used for private study or non- commercial research purposes only. Published by the University of Cape Town (UCT) in terms of the non-exclusive license granted to UCT by the author. University of Cape Town ASPECTS OF THE ST RUCTURE, TECTONIC EVOLUT ION AND SEDIMENTATION OF THE TYGERBERG TE RRANE , SOUTI-1\VE STERN CAPE PROV I NCE. ABSTRACT A structural, deformational and sedimentalogical analysis of the Sea Point, Signal Hill and Bloubergstrand exposures of the Tygerberg Formation, Malmesbury Group, has been undertaken, through the application of developed geomathematical, digital and graphical computer-based techniques, encompassing the fields of tectonic strain determination, fold shape classification, cross-sectional profile preparation and sedimentary data representation. Emplacement of the Cape Peninsula granite pluton led to signi£icant tectonic shortening of the sediments, tightening of the pre-existing synclinal fold at Sea Point, and overprinting of the structure by a regional foliation. Strain determinations from deformed metamorphic spotting in the sediments yielded a mean , undirected A1 : A2: AJ value of 1.57:1.24:0.52.
[Show full text]