Kuruman South Africa

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Journal Article
Journal: Geology
Published: 01 March 2015
Geology (2015) 43 (3): 251–254.
... separate impacts. Here we report geochemical evidence of extraterrestrial material in the only one of these spherule layers where it has not been previously reported, the Kuruman spherule layer (KSL) in the Kuruman Iron Formation, a banded iron formation (BIF) in the Griqualand West Basin (South Africa...
Journal Article
Journal: Economic Geology
Published: 01 August 1958
Economic Geology (1958) 53 (5): 577–597.
...J. J. Frankel Abstract Formation of bedded manganese deposits in the Kuruman area, South Africa, is attributed to near-surface enrichment by circulating meteoric waters of a slightly manganiferous limestone zone intercalated in late Precambrian banded ironstones of the upper Griquatown series...
Journal Article
Published: 01 June 2009
European Journal of Mineralogy (2009) 21 (3): 561–570.
...Theresa A. Detrie; Nancy L. Ross; Ross J. Angel; G. Diego Gatta Abstract The equation of state and high-pressure behaviour of a natural sample of prehnite from Kuruman, South Africa, Ca 2.07 (Al 0.98 ,Mn 0.02 )(AlSi 3.09 O 10 )(OH) 2 , have been investigated using single crystal X-ray diffraction...
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Spectrum of red rhodochrosite from the N’Chwaning Mines, <span class="search-highlight">Kuruman</span>, <span class="search-highlight">South</span> Afr...
Published: 01 January 2014
Figure 10 Spectrum of red rhodochrosite from the N’Chwaning Mines, Kuruman, South Africa, that shows the typical broad, broad, sharp band set going towards shorter wavelength.
Ages of carbonatites, kimberlites and alkaline igneous rocks, modified from...
Published: 01 April 2012
= Hogernakel (India), Br = Brazil; Al = Algeria, TW = Turkey Wells (Australia), Nb = Nabberu (Australia), BC = Brockman Creek (Australia), Ku = Kuruman (South Africa); Ki = Kimozero (Baltic Shield), Uk = Ukraine, Pre = Premier (South Africa), Sk = Skjoldungen (Greenland), Kei = Keivy (Baltic Shield), KL
Geologic context of sampling locations. A: Simplified geologic map of Griqu...
Published: 01 December 2016
Figure 1. Geologic context of sampling locations. A: Simplified geologic map of Griqualand West Basin (South Africa) showing relative locations of two sampling localities, near towns of Kuruman and Danielskuil (adapted from Klein et al., 1987 ). Fm.—Formation. Inset: Map of South Africa showing
Journal Article
Journal: GSA Bulletin
Published: 01 March 2012
GSA Bulletin (2012) 124 (3-4): 611–625.
... of the Kuruman Hills in the semiarid Northern Cape Province, South Africa ( Fig. 1 ). The cave, which lies at the base of a hill, formed in dolomites of the Late Archean–Early Proterozoic Ghaap Group, immediately below the contact with the overlying Banded Iron Formation (Eriksson et al., 2003). The cave extends...
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F ig . 5. A δ-δ oxygen isotope plot for quartz-magnetite pairs
of Hotazel i...
Published: 01 November 2003
F ig . 5. A δ-δ oxygen isotope plot for quartz-magnetite pairs of Hotazel iron formation compared with respective compositional fields of similar iron formation occurrences from Western Australia (Brockman iron formation; Becker and Clayton, 1976 ) and South Africa (Kuruman iron formation; Perry
Total iron (Fe T ) plotted against P 2 O 5  concentration (wt%) for red, ir...
Published: 05 February 2021
of South Africa (C), and ca. 2.45 Ga Griquatown Iron Formation of South Africa (D). Data are from Trendall and Blockley (1970) , Klein and Beukes (1989) , Beukes and Klein (1990) and Planavsky et al. (2010) .
Journal Article
Journal: Geophysics
Published: 26 February 2016
Geophysics (2016) 81 (2): J25–J34.
... different altitudes (obtained by vertical continuation). We have applied the methods to aeromagnetic data sets from the Giyani and Kuruman regions of South Africa with plausible results. For profile data, ∂ T ∂ z = ∂ f ∂ x ∂ 2 f ∂ z 2 − ∂ f ∂ z...
Journal Article
Journal: GSA Bulletin
Published: 01 May 2015
GSA Bulletin (2015) 127 (5-6): 850–861.
... of the Hunter Mine Group in the Abitibi greenstone belt in Canada, and (2) Kuruman Iron Formation of the Transvaal Supergroup in South Africa. Stilpnomelane mainly occurs as discontinuous microbands in the matrix of chert, iron oxides, or carbonates. The stilpnomelane crystals show radiating forms...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2009
GSA Bulletin (2009) 121 (1-2): 222–235.
...Woodward W. Fischer; Andrew H. Knoll Abstract Iron formations are typically thinly bedded or laminated sedimentary rocks containing 15% or more of iron and a large proportion of silica (commonly >40%). In the ca. 2590–2460 Ma Campbellrand-Kuruman Complex, Transvaal Supergroup, South Africa, iron...
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Series: GSA Memoirs
Published: 01 January 2006
DOI: 10.1130/2006.1198(17)
... at seawater depths >2.5 km. Large BIFs, including the 2.6–2.4 Ga BIFs in the Hamersley Basin, Australia, the 2.5 Ga Kuruman IF in South Africa, and the 1.87 Ga BIFs in the Lake Superior region, United States-Canada, belong to brine pool-type BIFs. The Hamersley Basin and possibly other large BIF-hosting...
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Journal Article
Journal: Economic Geology
Published: 01 March 2000
Economic Geology (2000) 95 (2): 405–427.
... with a range of values for other Proterozoic iron-formations of South Africa (Kuruman iron-formation sequence). It is the purpose of this study to present a comprehensive set of detailed analytical data for some of the best preserved Early Proterozoic iron-formations of the Quadrilátero Ferrífero...
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