F
Fanus Viljoen
Researcher at University of Johannesburg
Publications - 28
Citations - 962
Fanus Viljoen is an academic researcher from University of Johannesburg. The author has contributed to research in topics: Kimberlite & Mantle (geology). The author has an hindex of 15, co-authored 23 publications receiving 824 citations.
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Journal ArticleDOI
Diamond Genesis, Seismic Structure, and Evolution of the Kaapvaal-Zimbabwe Craton
Steven B. Shirey,Jeff W. Harris,Stephen H. Richardson,Matthew J. Fouch,David E. James,Pierre Cartigny,Peter Deines,Fanus Viljoen +7 more
TL;DR: The lithospheric mantle beneath the Kaapvaal-Zimbabwe craton of southern Africa shows variations in seismic P-wave velocity at depths within the diamond stability field that correlate with differences in the composition of diamonds and their syngenetic inclusions.
Journal ArticleDOI
Zircons from kimberlite: New insights from oxygen isotopes, trace elements, and Ti in zircon thermometry
F. Zeb Page,Bin Fu,Noriko T. Kita,John H. Fournelle,Michael J. Spicuzza,Daniel J. Schulze,Fanus Viljoen,Miguel Angelo Stipp Basei,John W. Valley +8 more
TL;DR: A suite of 88 zircons found in kimberlites from Africa, Siberia, Brazil, and the United States have been analyzed for their Ti concentration and selected zirons were analyzed for rare earth element (REE) concentrations by ion microprobe.
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Distribution and solubility limits of trace elements in hydrothermal black smoker sulfides : an in-situ LA-ICP-MS study
Cora C. Wohlgemuth-Ueberwasser,Cora C. Wohlgemuth-Ueberwasser,Fanus Viljoen,Sven Petersen,Clarisa Vorster +4 more
TL;DR: In this article, the authors analyzed sulfide samples from 27 black smoker samples derived from three different seafloor hydrothermal fields: the ultramafic-hosted Logatchev Hydrothermal field on the Mid-Atlantic Ridge, the basaltic-based Turtle Pits field and the felsic hosted PACMANUS field in the Manus basin (Papua New Guinea).
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Fractionation of oxygen and iron isotopes by partial melting processes : implications for the interpretation of stable isotope signatures in mafic rocks
Helen M. Williams,Helen M. Williams,Sune G. Nielsen,Sune G. Nielsen,Christophe Renac,William L. Griffin,Suzanne Y. O'Reilly,Catherine McCammon,Norman J. Pearson,Fanus Viljoen,Jeffrey C. Alt,Alex N. Halliday +11 more
TL;DR: In this article, a linear relationship between δ18O and stable iron isotope ratios (δ57Fe) in a suite of pristine eclogite xenoliths was shown.
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The magmatic and magmatic-hydrothermal evolution of felsic igneous rocks as seen through Nb-Ta geochemical fractionation, with implications for the origins of rare-metal mineralizations
Christophe Ballouard,Malcolm Massuyeau,Marlina Elburg,Sebastian Tappe,Fanus Viljoen,Jean-Tristan Brandenburg +5 more
TL;DR: The Nb/Ta ratios are highly variable within each type of rare-metal-enriched felsic igneous suite and causes of the Nb-Ta geochemical fractionation remain poorly understood.