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Kheis Terrane

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Journal Article
Published: 01 March 2022
South African Journal of Geology (2022) 125 (1): 61–78.
... regarding the provenance of two metasedimentary successions that are preserved to the east and west of the Trooilapspan shear zone, which represents the Eastern Namaqua Front. 207 Pb/ 206 Pb SHRIMP ages for detrital zircon grains sampled from the Keis supergroup, which is preserved in the Kheis Terrane...
FIGURES | View All (7)
Journal Article
Published: 01 June 2019
South African Journal of Geology (2019) 122 (2): 187–220.
.... The lithostratigraphic subdivision of the rock units comprising the Kheis Province has been a source of much controversy. From detailed study of aerial photography and satellite imagery, as well as field-based studies, the outcrop patterns in the Kheis Province and Kaaien Terrane were reinterpreted and a new...
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Tectonic sketch map showing the position of the <span class="search-highlight">Kheis</span> <span class="search-highlight">Terrane</span> of the Kaapva...
Published: 01 March 2022
Figure 1. Tectonic sketch map showing the position of the Kheis Terrane of the Kaapvaal Craton in relation to the Areachap Terrane and the Kakamas-, Richtersveld- and Bushmanland domains in the Namaqua Sector of the Namaqua Natal Metamorphic Province (after van Niekerk et al., 2020
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Geology of the <span class="search-highlight">Kheis</span> <span class="search-highlight">Terrane</span> based on the current study using outcrop patte...
Published: 01 June 2019
Figure 2. Geology of the Kheis Terrane based on the current study using outcrop pattern ( A ) and satellite imagery ( B ) compared to earlier interpretations of Stowe (1986) in ( C ) and Thomas et al. (1994) in ( D ). Note that the boundary at ❶ in (C) and (D) is discordant to the continuous
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Aeromagnetic image (top) and satellite image (bottom) of the <span class="search-highlight">Kheis</span> <span class="search-highlight">Terrane</span> ...
Published: 01 June 2019
Figure 6. Aeromagnetic image (top) and satellite image (bottom) of the Kheis Terrane indicating the locations of various features referred to in the text and how they relate to the regional aeromagnetic grain. Inferred thrust (1) by Van Niekerk (2006) ; the trace of the Dabep fault (2
Journal Article
Published: 26 October 2020
South African Journal of Geology (2020) 123 (4): 441–464.
... the Kheis Orogeny. 40 Ar/ 39 Ar ages derived from metamorphic muscovite formed in the metasediments of the Kheis terrane does not provide evidence for the timing of the Kheis Orogeny but suggests that it most likely only occurred after ~1 300 Ma and not at 1 800 Ma as commonly accepted. A U-Pb concordia age...
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Aeromagnetic image of southern Africa ( Corner and Durrheim, 2018 ) showing...
Published: 01 March 2022
Figure 7. Aeromagnetic image of southern Africa ( Corner and Durrheim, 2018 ) showing the difference in the source areas for the Keis supergroup in the Kheis Terrane on the Kaapvaal Craton (yellow) and the Korannaland Group in the Kakamas Domain in the Namaqua Province (blue). The Kheis Terrane
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Comparison of the most abundant detrital zircon age modes for the samples a...
Published: 01 March 2022
Figure 6. Comparison of the most abundant detrital zircon age modes for the samples analysed from the Keis supergroup of the Kheis Terrane (right) and Korannaland Group of the Kakamas Domain (left) with the age and error of possible source areas in southern Africa. The age data and references
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Interpreted aeromagnetic image indicating the locations of the Blackridge t...
Published: 01 June 2019
Figure 5. Interpreted aeromagnetic image indicating the locations of the Blackridge thrust, the Kalahari line (KL) as well as other significant features in the outcrop area of the Kheis Terrane. Note the strong north-south structural grain between the Blackridge thrust and the Kalahari line
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A comparison between the stratigraphy of the Kaaien <span class="search-highlight">Terrane</span> (left) and the ...
Published: 01 June 2019
Figure 8. A comparison between the stratigraphy of the Kaaien Terrane (left) and the Kheis Province (right) after Moen (1999) with the stratigraphy of the Keis supergroup in the Kheis Terrane proposed in this study (centre).
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The stratigraphic subdivision of the Keis supergroup, which forms part of t...
Published: 01 March 2022
Figure 2. The stratigraphic subdivision of the Keis supergroup, which forms part of the Kheis Terrane of the Kaapvaal Craton ( van Niekerk and Beukes, 2019 ). Stars indicate the stratigraphic horizons sampled for detrital zircon age determinations. Paleocurrent data are supplied for selected
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The  40 Ar/ 39 Ar dating results for single muscovite flakes from three sam...
Published: 26 October 2020
Figure 11. The 40 Ar/ 39 Ar dating results for single muscovite flakes from three samples from the Goede Hoop Formation (A) and (B) and the Opwag-and Skurweberg formations of the Groblershoop group in the Kheis Terrane, Sample PU-4: (C) and (D) and sample ESE-15: (E) and (F).
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Comparison of the interpretation of the distribution of the lithostratigrap...
Published: 01 June 2019
Figure 3. Comparison of the interpretation of the distribution of the lithostratigraphic units of the Kheis Terrane according to ( A ) Moen (1999) and ( B ) the newly proposed stratigraphic subdivision of the Olifantshoek and Groblershoop groups of the Keis supergroup. Note the position
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Geological map indicating the distribution of the rocks of the Opwag- and S...
Published: 26 October 2020
used for 40 Ar/ 39 Ar dating of muscovite from the Kheis Terrane. From more detail, the reader is referred to the map produced by van Niekerk (2006) .
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Probability density distributions ( a ) and cumulative age distributions ( ...
Published: 01 March 2022
Figure 5. Probability density distributions ( a ) and cumulative age distributions ( b ) in the Keis supergroup of the Kheis Terrane and the Korannaland Group of the Kakamas Domain. For comparison, data from the Waterberg Group indicated by the red area ( Andersen et al., 2019a
Journal Article
Published: 01 December 2008
South African Journal of Geology (2008) 111 (4): 465–466.
... belt according to our data. Their Kheis terrane plus the bulk of their Kaaien terrane is actually part of a single terrane that we named the Olifantshoek terrane. The authors regard the Doringberg Fault as the edge of the craton in the south but this would exclude the Marydale Formation from the craton...
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Journal Article
Published: 01 September 2016
South African Journal of Geology (2016) 119 (3): 473–494.
.... This was followed by accretion of the Rehoboth Province along the Kalahari Line, accompanied by the development of the east-vergent Kheis Province thrust complex. This created a larger cratonic block against which the 1.2 Ga collisions of Namaqua-Natal terranes impacted. The Kheis Province now yields ~1.17 Ma...
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Journal Article
Published: 01 March 2008
South African Journal of Geology (2008) 111 (1): 79–88.
... zone as a terrane boundary, show for the first time that this age reversal does in fact not exist in the field. This is because the Koras Group overlies rocks of the Kheis Subprovince exclusively; nowhere does it physically overlie ~1.0 Ga granitoids of the Keimoes Suite, despite their close proximity...
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Journal Article
Published: 01 March 2017
South African Journal of Geology (2017) 120 (1): 187–192.
... of Cape Town , 14 and 15, 26 – 40 . Van Niekerk , H.S. , 2006 . The origin of the Kheis Terrane and its relationship with the Archean Kaapvaal Craton and the Grenvillian Namaqua Province in southern Africa . Ph.D. thesis, University of Johannesburg , 241 pp. Von Backstrdm , J.W...
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The subdivision of the area between the Archean Kaapvaal Craton and the Nam...
Published: 01 June 2019
Figure 1. The subdivision of the area between the Archean Kaapvaal Craton and the Namaqua-Natal Metamorphic Province as proposed by Thomas et al. (1994) . Note the subdivision of the area east of the Trioolspan-Brakbosch Shear Zone into the Kaaien Terrane and the Kheis Province separated