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Saddleback-Inyoka fault zone

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Journal Article
Published: 01 March 2016
South African Journal of Geology (2016) 119 (1): 273-290.
... by sulphide mineralizations (especially gold), or graphite (e.g. Sherriff et al., 2009 ; Ritter et al., 2005 ) along shear zones of the faults of the BGB (e.g. Dirks et al., 2013 ; Upton and Craw, 2014 ). Especially along the Inyoka-Saddleback fault system, which has been proposed to represent a suture...
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Journal Article
Published: 01 September 2016
South African Journal of Geology (2016) 119 (3): 495-518.
... and separated from these by the Barbrook Fault to the north and the Saddleback Fault to the south, respectively. These two major faults merge just south of Barberton. Both faults progressively truncate the limbs of the Dycedale Syncline in a westwardly narrowing apex. The Barbrook Fault also truncates the fold...
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Journal Article
Published: 01 June 2019
South African Journal of Geology (2019)
... as horizontal flattening stresses, the latter reactivating earlier high-angle faults and resulting in subhorizontal strike-slip movements, particularly along the Barbrook Fault Zone, which acted as a right-lateral strike-slip fault. Formations north of this fault were buckled, following progressive deformation...
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Journal Article
Published: 01 June 2011
South African Journal of Geology (2011) 114 (2): 121-144.
... Tree Group rocks change in terms of stratigraphy, age, depositional environment and deformation history. A major tectonic boundary is the Inyoka-Saddleback fault (Figure 1 ) interpreted as a ~3.23 Ga suture zone (e.g. de Ronde and de Wit, 1994 ). South of the Inyoka-Saddleback fault, Onverwacht Group...
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Journal Article
Published: 01 December 2009
South African Journal of Geology (2009) 112 (3-4): 291-316.
... Tree Group rocks change. A major one of these is the Inyoka-Saddleback fault (Figure 1 ) interpreted as an ~3.23 Ga suture zone (e.g. De Ronde and De Wit, 1994 ). Onverwacht Group rocks south of the Inyoka fault are 3.46 to 3.26 Ga in age and reach a stratigraphic thickness of perhaps 10 km, whilst...
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Series: GSA Special Papers
Published: 01 January 2006
DOI: 10.1130/2006.2405(11)
... rocks, the present boundary between the two sedimentary realms (Northern and Southern Facies) coinciding with a major strike-slip fault system (the Saddleback-Inyoka fault zone, Fig. 2A ) occurring in the northern half of the Barberton greenstone belt ( Visser, 1956 ; Heinrichs and Reimer, 1977...
Journal Article
Journal: GSA Bulletin
Published: 01 March 2014
GSA Bulletin (2014) 126 (3-4): 251-270.
... ). This subduction-accretion is proposed to have resulted in the tectonic juxtaposition of the northern and southern Barberton Greenstone Belt terranes along the Saddleback-Inyoka fault system ( Fig. 1 ; de Ronde and de Wit, 1994 ; Dziggel et al., 2002 ), as well as the accretion of the Ancient Gneiss Complex (AGC...
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Journal Article
Published: 01 January 2013
Journal of the Geological Society (2013) 170 (1): 215-223.
..., one of the oldest continental nuclei worldwide, comprises several crustal blocks that are separated from each other by major lithospheric suture zones. These zones, which comprise the Inyoka Fault system of the Barberton Greenstone Belt and the Murchison–Tabazimbi Lineament of the Northern Kaapvaal...
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Image
Simplified geological map of Swaziland and adjacent areas in southern Afric...
Published: 01 July 2011
Fig. 1. Simplified geological map of Swaziland and adjacent areas in southern Africa (modified after Schoene et al. 2009 ), and sample localities. BGB, Barberton greenstone belt; DG, Dalmain granite; KVG, Kaap Valley granite; NHG, Nelshoogte granite; SIFS, SaddlebackInyoka fault system; PF
Image
(A) Simplified geological map of the Barberton region, South Africa, adapte...
Published: 01 March 2014
Figure 1. (A) Simplified geological map of the Barberton region, South Africa, adapted from Taylor et al. (2012) . PSZ—Phophonyane Shear Zone; SIFS—Saddleback-Inyoka fault system; TTGs—trondhjemite-tonalite-granodiorite rocks; AGC—Ancient Gneiss Complex. (B) Detailed geological map
Journal Article
Journal: GSA Bulletin
Published: 01 March 2010
GSA Bulletin (2010) 122 (3-4): 408-429.
... that the Saddleback-Inyoka fault system, which strikes NE-SW through the north-central portion of the Barberton greenstone belt, formed a major continental lithospheric suture between rocks north and south of the Barberton greenstone belt ( Fig. 1 ). Lowe (1994) described a more complicated scenario involving...
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Image
Simplified geological map of southwestern Barberton greenstone belt (BGB) a...
in > Geology
Published: 19 May 2017
: Silicified, turbiditic shallow marine sediments of the ca. 3.432 Ga Noisy Formation, structurally underlying Kromberg mafic-ultramafic sequence. Abbreviations: AGC—Ancient Gneiss Complex; PSZ—Phophonyane shear zone; SIFS—Saddleback-Inyoka fault system; BR-vsc—ca. 3455–3445 Ma Buck Ridge volcano-sedimentary
Journal Article
Published: 01 March 2019
South African Journal of Geology (2019) 122 (1): 17-38.
... northeast-southwest and is the dominant fold structure in the central BGB. It is bordered by the Inyoka (1.3 km to the south) and Saddleback Faults (2.5 km to the north) ( Figure 2 ). Measurements in the axial hinge zone of this major structure, ca . 7 km to the northeast, show that the syncline plunges...
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Journal Article
Journal: Geology
Published: 01 January 2016
Geology (2016) 44 (1): 51-54.
...., 2013 ). Moodies strata are particularly well preserved on the ∼3-km-thick overturned limb of the Saddleback syncline in the central Barberton Greenstone Belt north of the Inyoka fault (Fig. DR1 in the GSA Data Repository 1 ), where they have undergone only lower greenschist facies metamorphism...
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Series: Geological Society, London, Special Publications
Published: 01 January 2015
DOI: 10.1144/SP389.12
EISBN: 9781862396654
...) is also a feature of diapirism, or partial convective overturn, whereby cover successions are deformed as a result of bed-length shortening within inter-diapiric synclines ( Ramberg 1967 ; see Fig. 6 in Van Kranendonk 2011 b ). The SaddlebackInyoka Fault System that runs down the length of the BGB...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2012
GSA Bulletin (2012) 124 (7-8): 1191-1211.
... assembly is proposed to have resulted from the juxtaposition of microcontinental fragments with distinct tectono-stratigraphic, geochronological, and geochemical characteristics. This involved: (1) suturing of the ca. 3.33 Ga Northern and ca. 3.45 Ga Southern Barberton terranes along the Saddleback-Inyoka...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 2015
GSA Bulletin (2015) 127 (11-12): 1550-1557.
...-Greenstone Belt (BGGB). The Stolzburg domain is part of the older southern terrane in the BGGB, which lies south of the Saddleback-Inyoka fault system—an inferred suture ( de Ronde and de Wit, 1994 ). The Stolzburg domain is bounded on the west by the Inyoni shear zone, to the north by the Komati fault...
Journal Article
Published: 01 July 2011
Journal of the Geological Society (2011) 168 (4): 953-964.
...Fig. 1. Simplified geological map of Swaziland and adjacent areas in southern Africa (modified after Schoene et al. 2009 ), and sample localities. BGB, Barberton greenstone belt; DG, Dalmain granite; KVG, Kaap Valley granite; NHG, Nelshoogte granite; SIFS, SaddlebackInyoka fault system; PF...
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Journal Article
Journal: Geology
Published: 19 May 2017
Geology (2017) 45 (8): 695-698.
...: Silicified, turbiditic shallow marine sediments of the ca. 3.432 Ga Noisy Formation, structurally underlying Kromberg mafic-ultramafic sequence. Abbreviations: AGC—Ancient Gneiss Complex; PSZ—Phophonyane shear zone; SIFS—Saddleback-Inyoka fault system; BR-vsc—ca. 3455–3445 Ma Buck Ridge volcano-sedimentary...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 January 2010
GSA Bulletin (2010) 122 (1-2): 183-197.
... of at least two distinct terranes that are commonly linked to the remnants of two accreted oceanic plateaus ( De Ronde and De Wit, 1994 ; De Wit, 1998 ). The actual terrane suture is thought to be the Saddleback Inyoka fault in the central part of the belt ( De Ronde and De Wit, 1994 ). Most studies explain...
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