Research Article| December 01, 2014 THE STRUCTURE OF THE KAROO-AGE ELLISRAS BASIN IN LIMPOPO PROVINCE, SOUTH AFRICA, IN THE LIGHT OF NEW AIRBORNE GEOPHYSICAL DATA C.J.S. FOURIE; C.J.S. FOURIE Tswane University of Technology (TUT), Environmental, Water and Earth Sciences Department, Private Bag X680, Pretoria, 0001, South Africa, e-mail: fouriecjs@tut.ac.za Search for other works by this author on: GSW Google Scholar G. HENRY; G. HENRY Centre for Mining Innovation (CMI), Council for Scientific and Industrial Research (CSIR), Pretoria, South Africa, e-mail: ghenry@csir.co.za Search for other works by this author on: GSW Google Scholar L.P. MARÉ L.P. MARÉ Council for Geoscience, Geophysics Division, Private Bag X112, Pretoria, South Africa, e-mail: leoniem@geoscience.org.za Search for other works by this author on: GSW Google Scholar South African Journal of Geology (2014) 117 (2): 193–210. https://doi.org/10.2113/gssajg.117.2.193 Article history first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation C.J.S. FOURIE, G. HENRY, L.P. MARÉ; THE STRUCTURE OF THE KAROO-AGE ELLISRAS BASIN IN LIMPOPO PROVINCE, SOUTH AFRICA, IN THE LIGHT OF NEW AIRBORNE GEOPHYSICAL DATA. South African Journal of Geology 2014;; 117 (2): 193–210. doi: https://doi.org/10.2113/gssajg.117.2.193 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietySouth African Journal of Geology Search Advanced Search Abstract The Coaltech Research Association funded an airborne magnetic and radiometric survey over the Karoo-age Ellisras Basin in the Northern Province of South Africa in 2008. The Waterberg Coalfield, which is destined to become the major source of energy in South Africa in the future, is situated in this sedimentary basin. Interpretation of the processed geophysical datasets has added significantly to our understanding of the structure of the Ellisras Basin, in addition to providing additional constraints on lithological and structural mapping. The filtered magnetic and ternary radiometric images have yielded abundant information that will be important in future mapping. Two-dimensional modelling of the magnetic data has provided a new confirmation of the half-graben model for the structure of the Ellisras Basin. The Zoetfontein Fault Zone (ZFZ), which forms the northern boundary of the basin against Archaean Limpopo Belt rocks, is block-faulted and generally steeply dipping. The thickest development of the Karoo Supergroup rocks is against this fault, attaining up to 550 m. The sediment thickness decreases gradually to the south, indicating an asymmetric basin fill. The present southern boundary of the basin is formed by the Eenzaamheid Fault Zone, south of which the ~2.0G a Waterberg Group rocks are developed.Despite its economic importance, the Ellisras Basin has not been well-studied, and there is a need to correct this in the near future as South Africa becomes more reliant on energy from the Waterberg Coalfield. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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