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- W2121553308 abstract "Research Article| September 01, 2007 Comparison of electrical conductivity structures and 2D magnetic modelling along two profiles crossing the Beattie Magnetic Anomaly, South Africa Ute Weckmann; Ute Weckmann GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany, University of Potsdam, Institute of Geosciences, Potsdam, Germany, e-mail: uweck@gfz-potsdam.de; andre.jung@gmx.net, Search for other works by this author on: GSW Google Scholar Andre Jung; Andre Jung GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany, University of Potsdam, Institute of Geosciences, Potsdam, Germany, e-mail: uweck@gfz-potsdam.de; andre.jung@gmx.net, Search for other works by this author on: GSW Google Scholar Thomas Branch; Thomas Branch GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany, AEON-Africa Earth Observatory Network, University of Cape Town, Rondebosch 7701, South Africa, e-mail: Thomas.Branch@explorationservices.co.za, Search for other works by this author on: GSW Google Scholar Oliver Ritter Oliver Ritter GeoForschungsZentrum Potsdam, Telegrafenberg, 14473 Potsdam, Germany, e-mail: oritter@gfz-potsdam.de Search for other works by this author on: GSW Google Scholar South African Journal of Geology (2007) 110 (2-3): 449–464. https://doi.org/10.2113/gssajg.110.2-3.449 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 Ute Weckmann, Andre Jung, Thomas Branch, Oliver Ritter; Comparison of electrical conductivity structures and 2D magnetic modelling along two profiles crossing the Beattie Magnetic Anomaly, South Africa. South African Journal of Geology 2007;; 110 (2-3): 449–464. doi: https://doi.org/10.2113/gssajg.110.2-3.449 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 Two of the Earth’s largest geophysical anomalies, the Beattie Magnetic Anomaly (BMA) and the Southern Cape Conductive Belt (SCCB) extend across the southern African continent for more than 1000 km in an east-west direction. Based on previous electrical and magnetometer array measurements it is believed that both anomalies have a common crustal source with a width of 50 km represented by serpentinized palaeo-oceanic crust. New two-dimensional (2D) electrical conductivity models along a profile from Prince Albert to Fraserburg outline a narrow (2 km wide), southward-dipping zone of high electrical conductivity in the upper crust below the centre of the Beattie Magnetic Anomaly (BMA). Two-dimensional modeling studies of aero-magnetic data show that simple models that can explain the magnetic signature of the BMA, are not consistent with a narrow conductivity anomaly. Thus a common source for the two anomalies is unlikely. A second magnetotelluric (MT) experiment across the BMA, conducted along a 75 km profile centred on Jansenville, 350 km east of the first profile, resolves a sub-vertical and narrow conductivity anomaly below the centre of the BMA. At this location the conductor is reaching deeper to lower crustal levels and is inclined towards the north. You do not have access to this content, please speak to your institutional administrator if you feel you should have access." @default.
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- W2121553308 title "Comparison of electrical conductivity structures and 2D magnetic modelling along two profiles crossing the Beattie Magnetic Anomaly, South Africa" @default.
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