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Nhlangano Gneiss

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The <span class="search-highlight">Nhlangano</span> <span class="search-highlight">gneiss</span>. (A) U-Pb apatite thermochronology from the <span class="search-highlight">Nhlangano</span> ...
Published: 01 March 2010
Figure 10. The Nhlangano gneiss. (A) U-Pb apatite thermochronology from the Nhlangano gneiss EKC03–35, –36, one Usutu rock EKC02–35, and an older orthogneiss EKC02–36 from central Swaziland. See Figures 1 and 6 for sample locations. Dates are interpreted to reflect partial resetting
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Diagram summarizing ca. 3.3–3.2 Ga magmatism in the eastern Kaapvaal craton...
Published: 01 March 2010
and Bowring (2007) . Vertical colored bars indicate intrusions north of the Barberton greenstone belt (BGB), labeled at bottom (see text for references). On right side, period of intrusion and deformation of the Nhlangano gneiss. AGC—Ancient gneiss complex. Weighted mean dates are shown from the Stentor
Journal Article
Published: 01 September 2021
South African Journal of Geology (2021) 124 (3): 761–782.
... during igneous zircon crystallization and subsequent compositional alteration. Four rock samples previously dated by SIMS U-Pb using zircon were selected: 3.56 Ga Ngwane Gneiss, 3.55 Ga Theespruit felsic metavolcanic, 3.50 Ga Steynsdorp Gneiss and 2.98 Ga Nhlangano Gneiss. LA-ICP-MS U-Pb zircon ages...
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Journal Article
Journal: GSA Bulletin
Published: 01 March 2010
GSA Bulletin (2010) 122 (3-4): 408–429.
...Figure 10. The Nhlangano gneiss. (A) U-Pb apatite thermochronology from the Nhlangano gneiss EKC03–35, –36, one Usutu rock EKC02–35, and an older orthogneiss EKC02–36 from central Swaziland. See Figures 1 and 6 for sample locations. Dates are interpreted to reflect partial resetting...
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U-Pb geochronological (common Pb uncorrected) and trace elemental data for ...
Published: 01 September 2021
Figure 7. U-Pb geochronological (common Pb uncorrected) and trace elemental data for 20 ablations of SW05-1 (2.98 Ga Nhlangano Gneiss). Colors represent degrees of discordance (%).
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Cathodoluminescence (CL) images of selected zircons from samples BA06-2 (Th...
Published: 01 September 2021
Figure 2. Cathodoluminescence (CL) images of selected zircons from samples BA06-2 (Theespruit metavolcanic rock), BA06-3 (Steynsdorp Gneiss), SW06-2 (Ngwane Gneiss) and SW05-1 (Nhlangano Gneiss). Some grains show truncated zoning and embayments (e.g. SW06-2, upper right corner). Other
Journal Article
Published: 01 December 2017
South African Journal of Geology (2017) 120 (4): 477–498.
... metamorphism up to granulite grade is reported from an area around the Nhlangano gneiss dome ( Wilson and Jackson, 1988 ; Horváth et al., 2013 ; Hofmann et al., 2015 ). The maximum age constraint on deposition of the Pongola Supergroup is provided by 2.96 to 2.98 Ga zircon ages for felsic volcanic rocks...
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Journal Article
Published: 01 September 2012
South African Journal of Geology (2012) 115 (3): 369–384.
... in the MVMS. In a comprehensive study by Schoene and Bowring (2010) of the magmatic ages and deformation features in the Usutu Suite and Nhlangano gneisses in north and central Swaziland, it was concluded that these rocks represent the products of subduction-driven arc magmatism south of the BGB...
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Journal Article
Journal: GSA Bulletin
Published: 01 July 2012
GSA Bulletin (2012) 124 (7-8): 1191–1211.
... in the latest geological map of Swaziland ( Wilson, 1982 ). In addition, mafic-felsic banded orthogneiss units mapped as both “Mahamba” and “Nhlanganogneiss ( Wilson, 1982 ) are intimately associated with these metasedimentary units ( Fig. 1 ). The Ancient Gneiss Complex in the southeastern Kaapvaal craton...
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Schematic diagram illustrating the 3.30–3.07 Ga tectonic evolution of the s...
Published: 01 July 2012
Figure 13. Schematic diagram illustrating the 3.30–3.07 Ga tectonic evolution of the southeastern Kaapvaal craton based on the data presented in this paper. (A) Two NW-dipping subduction zones at ca. 3.30–3.23 Ga can best account for ocean basin closure north and south of the Ancient Gneiss
Journal Article
Published: 12 November 2014
Journal of the Geological Society (2015) 172 (1): 139–152.
... of the Mahamba Gneiss Complex lithologies in the region adjacent to the Cattle Ranch. The western part the Mahamba Gneisses was referred to as Nhlangano Gneiss by Schoene & Bowring (2010) , following Wilson (1982) , but this assignment is erroneous because these rocks are not related in age to the gneisses...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 13 February 2022
Lithosphere (2022) 2022 (Special 8): 5729877.
... as by several younger gneisses and granitoids like the 3.23-3.22 Ga Usutu Intrusive Suite in northern and central Eswatini [ 29 ] and the 3.28-3.24 Ga Nhlangano and Mahamba Gneisses in south-central Eswatini (Figure 1 ) [ 30 ]. The ca. 3.1 Ga Pigg’s Peak and Mpuluzi Batholiths [ 31 , 32 ] represent the last...
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Journal Article
Published: 01 September 2020
South African Journal of Geology (2020) 123 (3): 399–420.
... , J. and Horváth , P. , 2015 . The Nhlangano gneiss dome in south-west Swaziland – A record of crustal destabilization of the eastern Kaapvaal craton in the Neoarchaean . Precambrian Research , 258 , 109 – 132 . Horváth , P. , Reinhardt , J. and Hofmann , A. , 2014...
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Journal Article
Journal: GSA Bulletin
Published: 02 January 2020
GSA Bulletin (2020) 132 (9-10): 1829–1844.
....  1610 – 1614 , https://doi.org/10.1126/science.1215507 . Hofmann , A. , Kröner , A. , Xie , H. , Hegner , E. , Belyanin , G. , Kramers , J.D. , Bolhar , R. , Slabunov , A. , Reinhardt , J. , and Horváth , P. , 2015 , The Nhlangano gneiss dome in south...
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Journal Article
Published: 01 September 2021
South African Journal of Geology (2021) 124 (3): 663–684.
... , A. , Reinhardt , J. and Horváth , P. , 2015 . The Nhlangano gneiss dome in southwest Swaziland – A record of crustal destabilization of the eastern Kaapvaal craton in the Neoarchean . Precambrian Research , 258 , 109 – 132 . Humbert , F. , Agangi , A. , Massuyeau , M. , Elburg...
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