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Insizwa Complex

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Journal Article
Published: 01 March 1988
The Canadian Mineralogist (1988) 26 (1): 145–160.
Journal Article
Published: 01 March 1987
The Canadian Mineralogist (1987) 25 (1): 79–90.
Journal Article
Published: 01 November 1985
The Canadian Mineralogist (1985) 23 (4): 609–618.
Journal Article
Journal: Economic Geology
Published: 01 December 1984
Economic Geology (1984) 79 (8): 1857–1879.
...P. C. Lightfoot; A. J. Naldrett; C. J. Hawkesworth Abstract The Jurassic-aged mafic rocks from the Waterfall Gorge section of the Insizwa layered complex, Transkei, range in composition from olivine gabbro and picrite (Basal zone), through a series of gabbros (Central zone), to monzonites (Roof...
Journal Article
Published: 01 February 1984
The Canadian Mineralogist (1984) 22 (1): 111–123.
Journal Article
Published: 01 December 2003
South African Journal of Geology (2003) 106 (4): 409–428.
...J.S. Marsh; P. Allen; N. Fenner Abstract Detailed petrographic, modal and geochemical studies on a number of deep boreholes (exceeding 1.2km in some instances) along the southeastern margin of the Insizwa lobe of the Mount Ayliff Complex reveal the existence of a geochemical stratigraphy...
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Journal Article
Journal: Economic Geology
Published: 01 September 2002
Economic Geology (2002) 97 (6): 1293–1306.
... for Noril’sk-Talnakh–type massive Ni-Cu sulfide ores, an idea that is supported by the well-known sulfide occurrence at Waterfall Gorge. Here, we present major-, trace-, and noble-element data for 30 samples of cumulate rocks from a continuous 1,200 m drill core through the Insizwa lobe of the complex, as well...
FIGURES | View All (7)
Journal Article
Journal: Economic Geology
Published: 01 February 1995
Economic Geology (1995) 90 (1): 135–154.
... centered some 400 km north of the intrusion. Nickel-copper sulfides occur at the margins of the intrusion. The geologic setting of these sulfides is similar to that of a number of Ni-Cu sulfide deposits, such as those found in the Noril'sk-Talnakh area, the Duluth Complex, the Insizwa Complex, and the Cape...
Journal Article
Published: 01 April 2004
The Canadian Mineralogist (2004) 42 (2): 303–324.
... section of the Insizwa Complex, Transkei . Geol. Soc. S. Afr., Trans . 87 , 169 – 188 . Lightfoot , P.C. & Naldrett , A.J. ( 1984 b): Chemical variation in the Insizwa Complex, Transkei, and the nature of the parental magma . Can. Mineral . 22 , 111 – 123 . Lightfoot , P.C...
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Image
F ig . 1. Locality map. A. Central area of the Karoo igneous province in so...
Published: 01 September 2002
F ig . 1. Locality map. A. Central area of the Karoo igneous province in southern Africa. B. Mount Ayliff Complex. C. Close-up of the Insizwa lobe.
Image
Sketch map of the SE portion of the <b>Insizwa</b> lobe of the Mount Ayliff Comple...
Published: 01 December 2003
Figure 1. Sketch map of the SE portion of the Insizwa lobe of the Mount Ayliff Complex showing the location of the borehole cores discussed in the text as well as the Taylor’s Koppie dyke and the location of the section sampled across this dyke. Dense stipple -Basal Zone; diffuse stipple
Journal Article
Published: 01 August 1967
American Mineralogist (1967) 52 (7-8): 1027–1035.
...W. C. J. van Rensburg; L. Liebenberg Abstract Mackinawite has been identified in mafic and ultramafic rocks of the Bushveld igneous complex and Insizwa and also in the carbonatite and pegmatoid of Loolekop, Phalaborwa complex in South Africa. The mineral occurs predominantly as somewhat irregular...
Journal Article
Journal: Economic Geology
Published: 01 June 2005
Economic Geology (2005) 100 (4): 788–789.
... basalts of Southern Africa, notably mineralization in the Insizwa complex. The author shows that these deposits formed in magma conduits, and there are genetic links between the conduits and the associated volcanic rocks. The Pechenga deposits of Russia are the only known example of those associated...
Series: GSA Memoirs
Published: 01 January 1976
DOI: 10.1130/MEM146-p319
... disseminations, and in massive segregation bodies. The textural intergrowths of sulfides are generally simple, although locally they are more complex as a result of metamorphism. The interstitial nature and macroscale and microscale segregation drops of the sulfides indicate an orthomagmatic origin...
Journal Article
Journal: Economic Geology
Published: 01 December 2000
Economic Geology (2000) 95 (8): 1701–1717.
... these data to unmineralized intrusions from the same area and to other intrusions of similar association, notably the Insizwa and related intrusions from the Karoo province of South Africa. In addition, the data are also compared to the Jinchuan deposit in northwest China ( Barnes and Tang, 1999...
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Journal Article
Published: 01 September 2012
South African Journal of Geology (2012) 115 (3): 283–290.
... eruption is reduced. In the case of the Karoo sills, the maximum known total thickness is about 1000 m. This thickness is shown in Figure 1 near Barkley East, and also for the Insizwa Complex. The two deep boreholes near Barkley East had 18 and 20 sills in them with an average thickness of 50 m...
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Journal Article
Journal: Economic Geology
Published: 01 March 2004
Economic Geology (2004) 99 (2): 365–376.
... olivine gabbro sills at the Insizwa Complex and similar textures are also reported in PGE-enriched Ni-Cu sulfide deposits in Noril’sk ( Czamanske et al., 1992 ) and in Sudbury ( Naldrett, 1984 ). Sulfide blebs have been described in oceanic basalt by Czamanske and Moore (1977) and Distler et al. (1983...
FIGURES | View All (4)
Journal Article
Published: 01 August 1989
Journal of the Geological Society (1989) 146 (4): 675–684.
.... Naldrett A. J. Hawkesworth C. J. The geology and geochemistry of the Waterfall Gorge section of the Insizwa Complex with particular reference to the origin of the nickel sulphide deposits Economic Geology 1984 79 1857 1879 Mainwaring P. R. Naldrett A. J. Country rock...
Journal Article
Published: 01 December 2001
South African Journal of Geology (2001) 104 (4): 273–274.
... the Molopo Farms, Insizwa, Usushwana and Tete complexes, as well as several intrusions in Namibia are currently being, or have in the recent past been explored for PGE by a number of mining companies. Further, the high PGE price has made PGE an increasingly important and profitable byproduct of some primary...
Journal Article
Published: 12 September 2008
Canadian Journal of Earth Sciences (2008) 45 (8): 879–896.
... from some non-kimberlitic sources. Data from the Norilsk-I and Talnakh intrusions (Russia) and Jinchuan intrusion (China) are from Barnes and Kunilov (2000) and references therein. Compositional fields for Karoo basalts and Insizwa Complex are from Wyatt et al. (2004) and Cawthorn et al. (1988...