The tectonic development of the Namaqua mobile belt and its foreland in parts of the Northern Cape

 

Show simple item record

dc.contributor.advisor De Villiers, John en_ZA
dc.contributor.author Vajner, Václav en_ZA
dc.date.accessioned 2016-03-17T07:11:25Z
dc.date.available 2016-03-17T07:11:25Z
dc.date.issued 1974 en_ZA
dc.identifier.citation Vajner, V. 1974. The tectonic development of the Namaqua mobile belt and its foreland in parts of the Northern Cape. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/17875
dc.description.abstract The Namaqua Mobile Belt extends from the south-western coast of Southern Africa through northern Namaqualand and adjacent parts of South West Africa to the south-western margin of the Kaapvaal Craton near Prieska. Its Precambrian tectonic development is characterised by several successive periods of deformation and metamorphism, the last of which - the Namaqua tectogenesis - occurred between c. 0,9 and 1,25 Ga B.P. The northern boundary of the mobile belt is the Namaqua front which, at different places along its length, appears as a metamorphic transition, as an oblique-slip fault, and as an interface between areas yielding radiometric ages of 2,5 - 2,9 Ga and 0,9- 1,25 Ga respectively. The foreland of the belt in the area under consideration is formed by the south-western marginal part of the Kaapvaal Craton and by the Kheis tectonic domain; the former comprises granitoids and metamorphites generally older than c.2,5 Ga (the Skalkseput Granite, the Draghoender Granite and the Swartkop sequence), as well as supracrustal cover-rocks ranging in age between c. 2,5 and 1,8 Ga (the Seekoebaard Formation, the Transvaal Supergroup and the Matsap Formation). The area of the latter is underlain by a sequence of metasediments and metavolcanics (the Kheis Group), which has been deformed and metamorphosed prior to the deposition of the Seekoebaard Formation (probably prior to the intrusion of the Draghoender Granite c. 2,9 Ga B.P.). en_ZA
dc.language.iso eng en_ZA
dc.subject.other Geology en_ZA
dc.title The tectonic development of the Namaqua mobile belt and its foreland in parts of the Northern Cape en_ZA
dc.type Doctoral Thesis
uct.type.publication Research en_ZA
uct.type.resource Thesis en_ZA
dc.publisher.institution University of Cape Town
dc.publisher.faculty Faculty of Science en_ZA
dc.publisher.department Department of Geological Sciences en_ZA
dc.type.qualificationlevel Doctoral
dc.type.qualificationname PhD en_ZA
uct.type.filetype Text
uct.type.filetype Image
dc.identifier.apacitation Vajner, V. (1974). <i>The tectonic development of the Namaqua mobile belt and its foreland in parts of the Northern Cape</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Geological Sciences. Retrieved from http://hdl.handle.net/11427/17875 en_ZA
dc.identifier.chicagocitation Vajner, Václav. <i>"The tectonic development of the Namaqua mobile belt and its foreland in parts of the Northern Cape."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Geological Sciences, 1974. http://hdl.handle.net/11427/17875 en_ZA
dc.identifier.vancouvercitation Vajner V. The tectonic development of the Namaqua mobile belt and its foreland in parts of the Northern Cape. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Geological Sciences, 1974 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17875 en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Vajner, Václav AB - The Namaqua Mobile Belt extends from the south-western coast of Southern Africa through northern Namaqualand and adjacent parts of South West Africa to the south-western margin of the Kaapvaal Craton near Prieska. Its Precambrian tectonic development is characterised by several successive periods of deformation and metamorphism, the last of which - the Namaqua tectogenesis - occurred between c. 0,9 and 1,25 Ga B.P. The northern boundary of the mobile belt is the Namaqua front which, at different places along its length, appears as a metamorphic transition, as an oblique-slip fault, and as an interface between areas yielding radiometric ages of 2,5 - 2,9 Ga and 0,9- 1,25 Ga respectively. The foreland of the belt in the area under consideration is formed by the south-western marginal part of the Kaapvaal Craton and by the Kheis tectonic domain; the former comprises granitoids and metamorphites generally older than c.2,5 Ga (the Skalkseput Granite, the Draghoender Granite and the Swartkop sequence), as well as supracrustal cover-rocks ranging in age between c. 2,5 and 1,8 Ga (the Seekoebaard Formation, the Transvaal Supergroup and the Matsap Formation). The area of the latter is underlain by a sequence of metasediments and metavolcanics (the Kheis Group), which has been deformed and metamorphosed prior to the deposition of the Seekoebaard Formation (probably prior to the intrusion of the Draghoender Granite c. 2,9 Ga B.P.). DA - 1974 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1974 T1 - The tectonic development of the Namaqua mobile belt and its foreland in parts of the Northern Cape TI - The tectonic development of the Namaqua mobile belt and its foreland in parts of the Northern Cape UR - http://hdl.handle.net/11427/17875 ER - en_ZA


Files in this item

This item appears in the following Collection(s)

Show simple item record