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Kuruman River

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Journal Article
Published: 01 December 1985
South African Journal of Geology (1985) 88 (3): 501–515.
Image
Study area in the southwestern Kalahari with location of the <span class="search-highlight">river</span> beds, pa...
Published: 01 December 2011
( Blümel et al., 1998 ); (18) lower Nossob River ( Heine, 1981 ); (19) Molopo River at Koopan Suid ( Heine, 1981 ); (20) Equus Cave ( Lee-Thorp and Beaumont, 1995 ); (21) marine core MD962094 ( Stuut et al., 2004 ); (22) marine core GeoB1711 ( Little et al., 1997 ); (23) Kuruman River ( Shaw et al., 1992
Journal Article
Published: 01 December 2011
South African Journal of Geology (2011) 114 (3-4): 459–474.
... ( Blümel et al., 1998 ); (18) lower Nossob River ( Heine, 1981 ); (19) Molopo River at Koopan Suid ( Heine, 1981 ); (20) Equus Cave ( Lee-Thorp and Beaumont, 1995 ); (21) marine core MD962094 ( Stuut et al., 2004 ); (22) marine core GeoB1711 ( Little et al., 1997 ); (23) Kuruman River ( Shaw et al., 1992...
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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: GSA Bulletin
Published: 01 March 2012
GSA Bulletin (2012) 124 (3-4): 611–625.
... to a size of 70–100 μm, to the Kuruman Hills, temporary storage on the hill slopes and valleys surrounding Wonderwerk Cave, and later transport and deposition inside the cave. Our results suggest simple burial ages for sediments from both the front and back of the cave that range between 2.63 ± 0.17 Ma...
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Journal Article
Journal: Geology
Published: 01 September 2005
Geology (2005) 33 (9): 725–728.
... in ca. 2.63–2.48 Ga sedimentary successions from Western Australia ( Fig. 1 ) and South Africa. Three layers have so far been found in the Griqualand West Basin, South Africa (Monteville, Reivilo, and Kuruman layers; Simonson et al., 1999 , 2000b ; Simonson and Sumner, 2004 ; Glikson, 2005b...
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Photomicrographs of diagenetic to very low-grade metamorphic BIF assemblage...
Published: 01 October 2005
. ( e ) Minnesotaite masses in what originally had been greenalite granules. Relict edges of granules and some greenalite cement (at bottom, center) still remain. [Photos a, b, c, d, and e all from the Sokoman Iron Formation, Howells River area, Newfoundland (Labrador Trough; from Klein 1974 )]. ( f
Journal Article
Published: 01 September 2009
South African Journal of Geology (2009) 112 (2): 89–108.
...-escarpment of Karoo basalts. Group 2 kimberlites such as Finch, Darleston and Duivelskop, had already intruded these basalts around 120Ma. The north-westerly orientated drainage was directly linked to the drainage basin of the Kalahari River draining the northern part of the northern Cape and southern...
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Journal Article
Published: 01 December 2019
South African Journal of Geology (2019) 122 (4): 489–504.
... and drowning around 2.5 Ga led to deposition of transitional shales and ultimately iron formation of the contemporaneous Kuruman Formation (Griqualand West Basin) and Penge Formation (Transvaal Basin) ( Beukes, 1987 ; Sumner and Beukes, 2006 ). A subsequent drop in relative sea-level is indicated...
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Journal Article
Published: 01 June 2006
South African Journal of Geology (2006) 109 (1-2): 11–22.
... that are corrected for stratigraphic dip. Stratigraphic data from Beukes (1984) and Miyano and Beukes (1997) were used for the thicknesses of the Kuruman-Griquatown and Penge iron-formations. When projected into a cross section trend of N55°E from Prieska to section AE at Abel Erasmus Pass, stratigraphic...
FIGURES
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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Journal Article
Published: 01 October 2005
American Mineralogist (2005) 90 (10): 1473–1499.
.... ( e ) Minnesotaite masses in what originally had been greenalite granules. Relict edges of granules and some greenalite cement (at bottom, center) still remain. [Photos a, b, c, d, and e all from the Sokoman Iron Formation, Howells River area, Newfoundland (Labrador Trough; from Klein 1974 )]. ( f...
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Journal Article
Published: 01 March 2017
South African Journal of Geology (2017) 120 (1): 201–208.
...H.F.G. Moen; D.H. Cornell Abstract The Mesoproterozoic metamorphic formations of the Wilgenhoutsdrif Group underlie a large area around the Orange River east of Upington. The quartzitic Grootdrink Formation occurs at the base of the sequence and contacts with older units are either unconformable...
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Journal Article
Journal: GSA Bulletin
Published: 01 May 2014
GSA Bulletin (2014) 126 (5-6): 813–830.
... is found in both the Transvaal (Penge Iron Formation) and Griqualand West (Kuruman Iron Formation) structural basins ( Beukes, 1987 ; Simonson and Hassler, 1996 ; Sumner and Bowring, 1996 ; Sumner and Beukes, 2006 ). In the Griqualand basin, the Griquatown Iron Formation overlying the Kuruman records...
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Journal Article
Journal: Geology
Published: 08 January 2019
Geology (2019) 47 (2): 167–170.
... record. From each craton, we collected samples of BIFs and laminated chert ranging in age from 2.6 Ga to 2.45 Ga. The stratigraphic units sampled in South Africa include the Nauga Formation, Klein Naute Formation, and Kuruman Iron Formation (see Rasmussen et al., 2017 ), and in Western Australia...
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Journal Article
Journal: Economic Geology
Published: 01 September 2015
Economic Geology (2015) 110 (6): 1515–1539.
... that the more ferric BIF facies formed in shallower waters suggests that river-sourced nutrients would have been minimal, thus limiting primary productivity in the shallow waters and minimizing the organic carbon source necessary for reducing the hematite via dissimilatory Fe(III) reduction. By contrast...
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Journal Article
Published: 01 December 2021
South African Journal of Geology (2021) 124 (4): 927–962.
... and the Kuruman River (site 55) in the southern Kalahari ( Shaw et al., 1992 ). There are twelve major ephemeral rivers in the Namib Desert ( Jacobson and Jacobson, 2013 ) ( Figure 1a and 2 ), with flow in the Hoarusib (site 3) reaching the sea almost every year ( Srivastava et al., 2005 ). These rivers...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2016
GSA Bulletin (2016) 128 (3-4): 511–530.
...+ and SiO 2 (aq) as authigenic greenalite ( Gross and Zajac, 1983 ; Beukes and Gutzmer, 2008 ; Pufahl and Hiatt, 2012 ). The well-studied ca. 2.5 Ga Kuruman-Griquatown succession of the Kaapvaal craton ( Beukes, 1983 , 1984 ; Klein and Beukes, 1989 ; Beukes and Klein, 1990 ; Beukes and Gutzmer...
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Journal Article
Published: 01 October 2000
Earth Sciences History (2000) 19 (2): 175–191.
... and palaeontology was placed on a firm footing by the 1860s. Owen publicly acknowledged their contributions to these new sciences in 1876 in his monumental study of the fossil reptiles of South Africa. 1 Bain was probably the first to take out a license to trade across the Orange River when he visited Kuruman...
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Journal Article
Journal: Economic Geology
Published: 01 January 2013
Economic Geology (2013) 108 (1): 111–134.
... C.R. Swart Avenue, West Rand. B. Ferhythmite of the Contorted Bed iron formation showing small-scale folding along Jan Smuts Avenue, Johannesburg. C. The Kensington Member diamictite that occurs directly below the Silverfield iron formation along the Crocodile River Gorge, West Rand. D. Finely...
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