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Late-Orogenic Juvenile Magmatism of the Mesoproterozoic Namaqua Metamorphic Province, South Africa, and Relationships to Granulite-Facies REE-Th and Iron Oxide Mineralizations

Autor: Daniel E. Harlov, M.W. Knoper, Aurélien Eglinger, Sebastian Tappe, Christophe Ballouard, Marco A.G. Andreoli, Marlina Elburg

Publikováno v: Journal of Petrology

The Bushmanland Subprovince of the Mesoproterozoic Namaqua-Natal orogenic belt in southern Africa hosts numerous occurrences of monazite-magnetite-(biotite-apatite-sulfide)-bearing veins and granitoid dykes, including the Steenkampskraal vein system,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cc18ffffbbc5852293c1af6d8f3eacf
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5008383

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Petalite postdating spodumene in pegmatite as a consequence of the ~2.02 Ga meteorite impact in the Vredefort structure, southern Africa

Autor: H.M. Rajesh, M.W. Knoper, C. Schmidt, Oleg G. Safonov, G.A. Belyanin

Publikováno v: Lithos

Rare-element granitic pegmatites enriched in lithium are economically important hosts for the lithium aluminosilicates, spodumene and petalite. Most spodumene and petalite crystallize from the pegmatite melt, depending on pressure and temperature. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daa7b59ba025d629e20d1c6a2a263bee
https://doi.org/10.1016/j.lithos.2020.105760

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Genesis of monazite-rich, orthopyroxene-bearing veins in the Kliphoog area of the Concordia Granite, Springbok, Namaqualand, South Africa: Sources, fluids, and the mobility of actinides and REE

Autor: Franziska D.H. Wilke, Christophe Ballouard, Marlina Elburg, Marco A.G. Andreoli, M.W. Knoper, Wen Bin Ning, Daniel E. Harlov

Publikováno v: Lithos

A network of monazite-rich, coarse-grained veins and fine-grained veins permeating the mid-Proterozoic Concordia Granite in the Kliphoog area near Springbok, Namaqualand, North Cape Province, South Africa, are described with respect to their whole-ro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::762cb6917cf2609941002dfd9f1bf4d3
https://doi.org/10.1016/j.lithos.2020.105762

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Geometallurgical characterisation of Merensky Reef and UG2 at the Marikana Mine, Bushveld Complex, South Africa

Autor: M.W. Knoper, K.S. Viljoen, Antoine F. Mulaba-Bafubiandi, T. Dzvinamurungu

Publikováno v: Minerals Engineering. 52:74-81

The influence of mineralogy on the milling performance and the flotation-based recovery of Au, the platinum group elements (PGE), Co, Cr, Cu, Ni and S was investigated for three samples of the Merensky Reef (BK, RPM and WP facies types) and one sampl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::436b984e06be09a9776e200be3f4c6a7
https://doi.org/10.1016/j.mineng.2013.04.010

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The Hlagothi Complex: The identification of fragments from a Mesoarchaean large igneous province on the Kaapvaal Craton

Autor: Ashley Gumsley, Ulf Söderlund, Richard E. Ernst, H.M. Rajesh, M.O. de Kock, M.W. Knoper

Publikováno v: Lithos. 174:333-348

In this paper, we present geochronological, geochemical and palaeomagnetic results from the Hlagothi Complex and a NW-trending dolerite dyke swarm on the southeastern region of the Kaapvaal Craton in northern KwaZulu-Natal, South Africa. The Hlagothi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ab986e0685bb20c6a06d4901b6103b6f
https://doi.org/10.1016/j.lithos.2012.06.007

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The mineralogy and mineral associations of platinum group elements and gold in the Platreef at Zwartfontein, Akanani Project, Northern Bushveld Complex, South Africa

Autor: M.W. Knoper, Frits van der Merwe, Fanus Viljoen

Publikováno v: Mineralogy and Petrology. 106:25-38

The mineralogy of the platinum-group elements (PGE), and gold, in the Platreef of the Bushveld Complex, was investigated using an FEI Mineral Liberation Analyser. Polished sections were prepared from 171 samples collected from two boreholes, for the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba56e6a89233e476e71d12f0f42b8cd5
https://doi.org/10.1007/s00710-012-0225-7

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Discussion of 'New zircon shock phenomena and their use for dating and reconstruction of large impact structures revealed by electron nanobeam (EBSD, CL, EDS) and isotopic U–Pb and (U–Th)/He analysis of the Vredefort dome'1Appears in Canadian Journal of Earth Sciences, 2011, 48(2): 117–139 [doi: dx.doi.org/10.1139/e11-011]

Autor: H.M. Rajesh, M.W. Knoper

Publikováno v: Canadian Journal of Earth Sciences. 49:857-862

Spodumene pegmatites occur in the southeastern sector of the 2.02 Ga Vredefort impact structure in South Africa. Moser et al. (published in 2011) presented an isotope dilution – thermal ionization mass spectrometry (ID–TIMS) age of 1136 ± 47 Ma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b98e3be7cdac78f0d406b77debac9f3
https://doi.org/10.1139/e2012-003

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