U-PB AND HF ISOTOPE CONSTRAINTS FOR EMPLACEMENT OF THE NKANDLA GRANITE, SOUTHEASTERN KAAPVAAL CRATON, SOUTH AFRICA

Research Article| June 01, 2015 U-PB AND HF ISOTOPE CONSTRAINTS FOR EMPLACEMENT OF THE NKANDLA GRANITE, SOUTHEASTERN KAAPVAAL CRATON, SOUTH AFRICA N. HICKS; N. HICKS Council for Geoscience. PO Box 900, Pietermaritzburg, 3200, South Africa, e-mail: nhicks@geoscience.org.za Search for other works by this author on: GSW Google Scholar M. ELBURG; M. ELBURG Department of Geology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa, Previous Address: Geology Division, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private Bag X 54001 Durban 4000, South Africa, e-mail: marlinae@uj.ac.za Search for other works by this author on: GSW Google Scholar T. ANDERSEN T. ANDERSEN Department of Geosciences, University of Oslo, PO Box 1047 Blindern, N-0316 Oslo, Norway, e-mail: tom.andersen@geo.uio.no Search for other works by this author on: GSW Google Scholar Author and Article Information N. HICKS Council for Geoscience. PO Box 900, Pietermaritzburg, 3200, South Africa, e-mail: nhicks@geoscience.org.za M. ELBURG Department of Geology, University of Johannesburg, P.O. Box 524, Auckland Park 2006, South Africa, Previous Address: Geology Division, School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private Bag X 54001 Durban 4000, South Africa, e-mail: marlinae@uj.ac.za T. ANDERSEN Department of Geosciences, University of Oslo, PO Box 1047 Blindern, N-0316 Oslo, Norway, e-mail: tom.andersen@geo.uio.no Publisher: Geological Society of South Africa First Online: 09 Mar 2017 Online Issn: 1996-8590 Print Issn: 1012-0750 © 2015 Geological Society of South Africa South African Journal of Geology (2015) 118 (2): 119–128. https://doi.org/10.2113/gssajg.118.2.119 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 N. HICKS, M. ELBURG, T. ANDERSEN; U-PB AND HF ISOTOPE CONSTRAINTS FOR EMPLACEMENT OF THE NKANDLA GRANITE, SOUTHEASTERN KAAPVAAL CRATON, SOUTH AFRICA. South African Journal of Geology 2015;; 118 (2): 119–128. doi: https://doi.org/10.2113/gssajg.118.2.119 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 We report zircon ages and Hf isotopic compositions for the Nkandla Granite of the Ilangwe Granitoid/Gneiss Suite exposed to the southeast of Nkandla in northern KwaZulu-Natal, South Africa. The Ilangwe Granitoid/Gneiss Suite is intrusive into the Ilangwe Greenstone Belt along the southeastern margin of the Kaapvaal Craton. Zircons obtained from the Nkandla Granite yielded an upper intercept age of 3254 ± 8 Ma, interpreted to be the age of intrusion, with evidence of lead loss events at 3086 ± 17 Ma and in the Phanerozoic. The ~3.25 Ga age is consistent with late Palaeoarchaean ages obtained from similar granitoid units throughout the southeastern Kaapvaal Craton. The intrusive relationship with the adjacent Ilangwe Greenstone Belt provides a minimum age for the, as yet undated, greenstone succession. Initial hafnium isotopic compositions range from ɛHf = −2 to +7, indicating a role for both mantle input and crustal reworking. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.