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Journal articles on the topic 'Geology, Stratigraphic – South Africa – Karoo'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

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1

Bordy, E. M., S. Spelman, D. I. Cole, and P. Mthembi. "Lithostratigraphy of the Pietermaritzburg Formation (Ecca Group, Karoo Supergroup), South Africa." South African Journal of Geology 120, no. 2 (2017): 293–302. http://dx.doi.org/10.25131/gssajg.120.2.293.

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Abstract The Lower Permian Pietermaritzburg Formation is a mudrock-dominated, upward-coarsening stratigraphic unit in the lower Ecca Group (Karoo Supergroup) in the northeastern part of the main Karoo Basin of South Africa. The formation extends over most of the KwaZulu-Natal Province, and due to its lithology and the local climate, it is usually poorly exposed; hence the description is mainly based on borehole records. From a measured thickness of about 430 m south of the type area around Pietermaritzburg, the formation thins progressively northwards and pinches out against the Dwyka Group an

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2

Griffis, Neil Patrick, Isabel Patricia Montañez, Roland Mundil, et al. "Coupled stratigraphic and U-Pb zircon age constraints on the late Paleozoic icehouse-to-greenhouse turnover in south-central Gondwana." Geology 47, no. 12 (2019): 1146–50. http://dx.doi.org/10.1130/g46740.1.

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Abstract The demise of the Late Paleozoic Ice Age has been hypothesized as diachronous, occurring first in western South America and progressing eastward across Africa and culminating in Australia over an ∼60 m.y. period, suggesting tectonic forcing mechanisms that operate on time scales of 106 yr or longer. We test this diachronous deglaciation hypothesis for southwestern and south-central Gondwana with new single crystal U-Pb zircon chemical abrasion thermal ionizing mass spectrometry (CA-TIMS) ages from volcaniclastic deposits in the Paraná (Brazil) and Karoo (South Africa) Basins that span

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3

de V. Wickens, H., and D. I. Cole. "Lithostratigraphy of the Kookfontein Formation (Ecca Group, Karoo Supergroup), South Africa." South African Journal of Geology 120, no. 3 (2017): 447–58. http://dx.doi.org/10.25131/gssajg.120.3.447.

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Abstract The Permian Kookfontein Formation forms part of the upper Ecca Group in the southwestern part of the main Karoo Basin of South Africa. It occupies a stratigraphic position between the underlying Skoorsteenberg Formation and the overlying Waterford Formation, with its regional extent limited to the cut-off boundaries of the Skoorsteenberg Formation. The Kookfontein Formation has an average thickness of 200 m, coarsens upwards, and predominantly comprises dark grey shale, siltstone and thin- to thick-bedded, fine- to very fine-grained, feldspathic litharenite. Characteristic upward-coar

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4

Viglietti, P. A. "Biostratigraphy of the Daptocephalus Assemblage Zone (Beaufort Group, Karoo Supergroup), South Africa." South African Journal of Geology 123, no. 2 (2020): 191–206. http://dx.doi.org/10.25131/sajg.123.0014.

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Abstract The name Daptocephalus Assemblage Zone (DaAZ) is re-instated for vertebrate assemblages of the uppermost Permian strata (Balfour, upper Teekloof, and Normandien formations) of South Africa’s main Karoo Basin (MKB). This involved taxonomic revision of the dicynodontoid “Dicynodon” sensu lato, reviving Daptocephalus leoniceps, and revising the stratigraphic ranges of co-occurring index taxa (Theriognathus microps, Procynosuchus delaharpeae) of the Dicynodon Assemblage Zone (DiAZ) as it was known. This work has demonstrated the appearance of index taxa below the stratigraphically defined

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5

van der Werff, W., and S. Johnson. "High resolution stratigraphic analysis of a turbidite system, Tanqua Karoo Basin, South Africa." Marine and Petroleum Geology 20, no. 1 (2003): 45–69. http://dx.doi.org/10.1016/s0264-8172(03)00025-4.

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6

Viglietti, P. A., B. W. McPhee, E. M. Bordy, et al. "Biostratigraphy of the Massospondylus Assemblage Zone (Stormberg Group, Karoo Supergroup), South Africa." South African Journal of Geology 123, no. 2 (2020): 249–62. http://dx.doi.org/10.25131/sajg.123.0018.

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Abstract The Massospondylus Assemblage Zone is the youngest tetrapod biozone in the Karoo Basin (upper Stormberg Group, Karoo Supergroup) and records one of the oldest dinosaur dominated ecosystems in southern Gondwana. Recent qualitative and quantitative investigations into the biostratigraphy of the lower and upper Elliot formations (lEF, uEF) and Clarens Formation in the main Karoo Basin resulted in the ﬁrst biostratigraphic review of this stratigraphic interval in nearly four decades, allowing us to introduce a new biostratigraphic scheme, the Massospondylus Assemblage Zone (MAZ). The MAZ

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7

Wild, R., S. S. Flint, and D. M. Hodgson. "Stratigraphic evolution of the upper slope and shelf edge in the Karoo Basin, South Africa." Basin Research 21, no. 5 (2009): 502–27. http://dx.doi.org/10.1111/j.1365-2117.2009.00409.x.

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8

Gastaldo, Robert A., Kaci Kus, Neil Tabor, and Johann Neveling. "Calcic Vertisols in the upper Daptocephalus Assemblage Zone, Balfour Formation, Karoo Basin, South Africa: Implications for Late Permian Climate." Journal of Sedimentary Research 90, no. 6 (2020): 609–28. http://dx.doi.org/10.2110/jsr.2020.32.

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ABSTRACT The fully continental succession of the Beaufort Group, Karoo Basin, South Africa, has been used in the development of environmental models proposed for the interval that spans the contact between the Daptocephalus to Lystrosaurus Assemblage Zones, associated by some workers with the end-Permian extinction event. An aridification trend is widely accepted, yet geochemical data indicate that the majority of in situ paleosols encountered in this interval developed in waterlogged environments. To date, the presence of calcic paleosols in the latest Permian can be inferred only from the pr

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9

Sixsmith, P. J., S. S. Flint, H. DeV Wickens, and S. D. Johnson. "Anatomy and Stratigraphic Development of a Basin Floor Turbidite System in the Laingsburg Formation, Main Karoo Basin, South Africa." Journal of Sedimentary Research 74, no. 2 (2004): 239–54. http://dx.doi.org/10.1306/082903740239.

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10

Tankard, Anthony, Herman Welsink, Peter Aukes, Robert Newton, and Edgar Stettler. "Tectonic evolution of the Cape and Karoo basins of South Africa." Marine and Petroleum Geology 26, no. 8 (2009): 1379–412. http://dx.doi.org/10.1016/j.marpetgeo.2009.01.022.

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11

Wild, Richard J., David M. Hodgson, and Stephen S. Flint. "Architecture and stratigraphic evolution of multiple, vertically-stacked slope channel complexes, Tanqua depocentre, Karoo Basin, South Africa." Geological Society, London, Special Publications 244, no. 1 (2005): 89–111. http://dx.doi.org/10.1144/gsl.sp.2005.244.01.06.

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12

Cadle, A. B., B. Cairncross, A. D. M. Christie, and D. L. Roberts. "The Karoo Basin of South Africa: type basin for the coal-bearing deposits of southern Africa." International Journal of Coal Geology 23, no. 1-4 (1993): 117–57. http://dx.doi.org/10.1016/0166-5162(93)90046-d.

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13

de Oliveira, Daniel P. S., and R. Grant Cawthorn. "Dolerite intrusion morphology at Majuba Colliery, northeast Karoo Basin, Republic of South Africa." International Journal of Coal Geology 41, no. 4 (1999): 333–49. http://dx.doi.org/10.1016/s0166-5162(99)00026-9.

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14

Cairncross, B. "Tectono-sedimentary settings and controls of the Karoo Basin Permian coals, South Africa." International Journal of Coal Geology 16, no. 1-3 (1990): 175–78. http://dx.doi.org/10.1016/0166-5162(90)90031-s.

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15

Cairncross, B. "Paleodepositional environments and tectonosedimentary controls of the postglacial Permian coals, Karoo Basin, South Africa." International Journal of Coal Geology 12, no. 1-4 (1989): 365–80. http://dx.doi.org/10.1016/0166-5162(89)90058-x.

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16

Johnson, Stephen David, Stephen Flint, David Hinds, and H. De Ville Wickens. "Anatomy, geometry and sequence stratigraphy of basin floor to slope turbidite systems, Tanqua Karoo, South Africa." Sedimentology 48, no. 5 (2001): 987–1023. http://dx.doi.org/10.1046/j.1365-3091.2001.00405.x.

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17

Cadle, A. B., and B. Cairncross. "A sandy, bed-load dominated fluvial system deposited by lateral-accretion: Permian Karoo Sequence, South Africa." Sedimentary Geology 85, no. 1-4 (1993): 435–55. http://dx.doi.org/10.1016/0037-0738(93)90097-o.

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18

van der Merwe, Willem C., Stephen S. Flint, and David M. Hodgson. "Sequence stratigraphy of an argillaceous, deepwater basin-plain succession: Vischkuil Formation (Permian), Karoo Basin, South Africa." Marine and Petroleum Geology 27, no. 2 (2010): 321–33. http://dx.doi.org/10.1016/j.marpetgeo.2009.10.007.

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19

Catuneanu, Octavian, and Duncan Bowker. "Sequence stratigraphy of the Koonap and Middleton fluvial formations in the Karoo foredeep South Africa." Journal of African Earth Sciences 33, no. 3-4 (2001): 579–95. http://dx.doi.org/10.1016/s0899-5362(01)00095-1.

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20

Wagner, Nicola Jane, and Arnold Matiane. "Rare earth elements in select Main Karoo Basin (South Africa) coal and coal ash samples." International Journal of Coal Geology 196 (August 2018): 82–92. http://dx.doi.org/10.1016/j.coal.2018.06.020.

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21

Grecula, Martin, Stephen S. Flint, Henry De V. Wickens, and Stephen D. Johnson. "Upward-thickening patterns and lateral continuity of Permian sand-rich turbidite channel fills, Laingsburg Karoo, South Africa." Sedimentology 50, no. 5 (2003): 831–53. http://dx.doi.org/10.1046/j.1365-3091.2003.00576.x.

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22

Figueiredo, J. J. P., D. M. Hodgson, S. S. Flint, and J. P. Kavanagh. "Depositional Environments and Sequence Stratigraphy of an Exhumed Permian Mudstone-Dominated Submarine Slope Succession, Karoo Basin, South Africa." Journal of Sedimentary Research 80, no. 1 (2010): 97–118. http://dx.doi.org/10.2110/jsr.2010.002.

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23

Oliveira, Carlos M. M., David M. Hodgson, and Stephen S. Flint. "Distribution of soft-sediment deformation structures in clinoform successions of the Permian Ecca Group, Karoo Basin, South Africa." Sedimentary Geology 235, no. 3-4 (2011): 314–30. http://dx.doi.org/10.1016/j.sedgeo.2010.09.011.

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24

VISSER, J. N. J., and J. C. LOOCK. "Ice margin influence on glaciomarine sedimentation in the Permo-Carboniferous Dwyka Formation from the southwestern Karoo, South Africa." Sedimentology 34, no. 5 (1987): 929–41. http://dx.doi.org/10.1111/j.1365-3091.1987.tb00813.x.

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25

Visser, Johan N. J. "Sea-level changes in a back-arc-foreland transition: the late Carboniferous-Permian Karoo Basin of South Africa." Sedimentary Geology 83, no. 1-2 (1993): 115–31. http://dx.doi.org/10.1016/0037-0738(93)90185-8.

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26

Boulesteix, Kévin, Miquel Poyatos-Moré, David M. Hodgson, Stephen S. Flint, and Kevin G. Taylor. "Fringe or background: Characterizing deep-water mudstones beyond the basin-floor fan sandstone pinchout." Journal of Sedimentary Research 90, no. 12 (2020): 1678–705. http://dx.doi.org/10.2110/jsr.2020.048.

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ABSTRACT Mud dominates volumetrically the fraction of sediment delivered and deposited in deep-water environments, and mudstone is a major component of basin-floor successions. However, studies of basin-floor deposits have mainly focused on their proximal sandstone-prone part. A consequent bias therefore remains in the understanding of depositional processes and stratigraphic architecture in mudstone-prone distal settings beyond the sandstone pinchouts of basin-floor fans. This study uses macroscopic and microscopic descriptions of over 500 m of continuous cores from research boreholes from th

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27

Flint, S. S., D. M. Hodgson, A. R. Sprague, et al. "Depositional architecture and sequence stratigraphy of the Karoo basin floor to shelf edge succession, Laingsburg depocentre, South Africa." Marine and Petroleum Geology 28, no. 3 (2011): 658–74. http://dx.doi.org/10.1016/j.marpetgeo.2010.06.008.

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28

Nolte, Steffen, Claire Geel, Alexandra Amann-Hildenbrand, Bernhard M. Krooss, and Ralf Littke. "Petrophysical and geochemical characterization of potential unconventional gas shale reservoirs in the southern Karoo Basin, South Africa." International Journal of Coal Geology 212 (August 2019): 103249. http://dx.doi.org/10.1016/j.coal.2019.103249.

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29

Walters, Schalk W., and Ryan T. Tucker. "Resolving cryptic stratigraphy in the Ecca Group, Karoo Basin, South Africa: Elucidating the Ripon and Laingsburg depocenters." Journal of African Earth Sciences 172 (December 2020): 103913. http://dx.doi.org/10.1016/j.jafrearsci.2020.103913.

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30

Spychala, Y. T., D. M. Hodgson, S. S. Flint, and N. P. Mountney. "Constraining the sedimentology and stratigraphy of submarine intraslope lobe deposits using exhumed examples from the Karoo Basin, South Africa." Sedimentary Geology 322 (June 2015): 67–81. http://dx.doi.org/10.1016/j.sedgeo.2015.03.013.

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31

Galerne, Christophe Y., Else-Ragnhild Neumann, Ingrid Aarnes, and Sverre Planke. "Magmatic differentiation processes in saucer-shaped sills: Evidence from the Golden Valley Sill in the Karoo Basin, South Africa." Geosphere 6, no. 3 (2010): 163–88. http://dx.doi.org/10.1130/ges00500.1.

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32

Galerne, Christopher. "Magmatic differentiation processes in saucer-shaped sills: Evidence from the Golden Valley Sill in the Karoo Basin, South Africa." Geosphere 6, no. 3 (2010): 163–88. http://dx.doi.org/10.1130/ges00500.s1.

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33

Galerne, Christopher. "Magmatic differentiation processes in saucer-shaped sills: Evidence from the Golden Valley Sill in the Karoo Basin, South Africa." Geosphere 6, no. 3 (2010): 163–88. http://dx.doi.org/10.1130/ges00500.s2.

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34

Galerne, Christopher. "Magmatic differentiation processes in saucer-shaped sills: Evidence from the Golden Valley Sill in the Karoo Basin, South Africa." Geosphere 6, no. 3 (2010): 163–88. http://dx.doi.org/10.1130/ges00500.s3.

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35

OLIVEIRA, CARLOS M. M., DAVID M. HODGSON, and STEPHEN S. FLINT. "Aseismic controls onin situsoft-sediment deformation processes and products in submarine slope deposits of the Karoo Basin, South Africa." Sedimentology 56, no. 5 (2009): 1201–25. http://dx.doi.org/10.1111/j.1365-3091.2008.01029.x.

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36

VISSER, JOHANN J. "Glacial bedforms at the base of the Permo-Carboniferous Dwyka Formation along the western margin of the Karoo Basin, South Africa." Sedimentology 37, no. 2 (1990): 231–45. http://dx.doi.org/10.1111/j.1365-3091.1990.tb00957.x.

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37

le Roux, J. P. "Palaeogeographic reconstruction of sandstones using weighted mean grain-size maps, with examples from the Karoo Basin (South Africa) and the Sydney Basin (Australia)." Sedimentary Geology 81, no. 3-4 (1992): 173–80. http://dx.doi.org/10.1016/0037-0738(92)90068-3.

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38

Smith, A. M. "Subaqueous giant (15 m) and supergiant (40 m) dunes from the Lower Permian Vryheid Formation of the Karoo Supergroup, northern Natal, South Africa." Sedimentary Geology 77, no. 3-4 (1992): 215–24. http://dx.doi.org/10.1016/0037-0738(92)90127-d.

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39

Adeniyi, Elijah O., Frantz Ossa Ossa, Jan D. Kramers, Michiel O. de Kock, Georgy Belyanin, and Nicolas J. Beukes. "Cause and timing of the thermal over-maturation of hydrocarbon source rocks of the Ecca Group (Main Karoo Basin, South Africa)." Marine and Petroleum Geology 91 (March 2018): 480–500. http://dx.doi.org/10.1016/j.marpetgeo.2018.01.033.

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40

Herbert, C. T., and J. S. Compton. "Depositional environments of the lower Permian Dwyka diamictite and Prince Albert shale inferred from the geochemistry of early diagenetic concretions, southwest Karoo Basin, South Africa." Sedimentary Geology 194, no. 3-4 (2007): 263–77. http://dx.doi.org/10.1016/j.sedgeo.2006.06.008.

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41

Cole, Doug, and Natasha Barbolini. "Marine flooding surfaces recorded in Permian black shales and coal deposits of the Main Karoo Basin (South Africa): Implications for basin dynamics and cross-basin correlation: Discussion." International Journal of Coal Geology 209 (May 2019): 130–31. http://dx.doi.org/10.1016/j.coal.2018.04.013.

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42

Oldknow, C. J., A. S. Carr, J. M. Hooke, and Z. Shen. "The suitability of a low temperature post-IR IRSL signal for dating alluvial and colluvial “cut and fill” sequences in the Great Karoo, South Africa." Quaternary Geochronology 58 (June 2020): 101064. http://dx.doi.org/10.1016/j.quageo.2020.101064.

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43

Higgs, Roger. "Comments on ‘Sequence stratigraphy of an argillaceous, deepwater basin plain succession: Vischkuil Formation (Permian), Karoo Basin, South Africa’ from van der Merwe, Flint and Hodgson (Marine and Petroleum Geology, 2010, 27, 321-333)." Marine and Petroleum Geology 27, no. 9 (2010): 2073–75. http://dx.doi.org/10.1016/j.marpetgeo.2010.04.006.

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44

van der Merwe, Willem C., Stephen S. Flint, and David M. Hodgson. "Reply on ‘Sequence stratigraphy of an argillaceous, deepwater basin plain succession: Vischkuil Formation (Permian), Karoo Basin, South Africa’ from van der Merwe, Flint and Hodgson (Marine and Petroleum Geology, 2010, 27, 321–333)." Marine and Petroleum Geology 27, no. 9 (2010): 2070–72. http://dx.doi.org/10.1016/j.marpetgeo.2010.04.008.

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45

Catuneanu, O., H. Wopfner, P. G. Eriksson, et al. "The Karoo basins of south-central Africa." Journal of African Earth Sciences 43, no. 1-3 (2005): 211–53. http://dx.doi.org/10.1016/j.jafrearsci.2005.07.007.

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46

Rubidge, B. S., and M. O. Day. "Biostratigraphy of the Eodicynodon Assemblage Zone (Beaufort Group, Karoo Supergroup), South Africa." South African Journal of Geology 123, no. 2 (2020): 141–48. http://dx.doi.org/10.25131/sajg.123.0010.

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Abstract The middle Permian Eodicynodon Assemblage Zone is the lowermost biozone of the Beaufort Group (Adelaide Subgroup, Karoo Supergroup) and occurs in the southwestern part of the main Karoo Basin. It is host to a diverse assemblage of basal therapsid genera of which Eodicynodon is the most abundant. The biozone reaches a maximum thickness of 1 100 m in the Prince Albert Road area and thins to the east and west. The biozone corresponds to the Combrinkskraal and Grootfontein members of the Abrahamskraal Formation, directly overlies the Waterford Formation of the Ecca Group, and records the

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47

Viglietti, P. A., B. W. McPhee, E. M. Bordy, et al. "Biostratigraphy of the Scalenodontoides Assemblage Zone (Stormberg Group, Karoo Supergroup), South Africa." South African Journal of Geology 123, no. 2 (2020): 239–48. http://dx.doi.org/10.25131/sajg.123.0017.

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Abstract The Scalenodontoides Assemblage Zone (SAZ) is the oldest fossil tetrapod biozone of the Stormberg Group (Karoo Supergroup) and preserves the oldest dinosaur bearing deposits in the Karoo Basin. The SAZ represents a revision of the ‘Euskelosaurus’ Range Zone, whose taxonomic basis has been undermined because ‘Euskelosaurus’ is well demonstrated to be a nomen dubium. Recent qualitative and quantitative investigations into the biostratigraphy of the Elliot and Clarens formations have resulted in the ﬁrst biostratigraphic review of all lower Elliot Formation (lEF) taxa in nearly 40 years.

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48

Bezuidenhout, L. J., M. Doucouré, V. Wagener, et al. "Rayleigh group velocity extraction from ambient seismic noise to map the south Eastern Cape Karoo region, South Africa." South African Journal of Geology 120, no. 3 (2017): 341–50. http://dx.doi.org/10.25131/gssajg.120.3.341.

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Abstract The Karoo region of South Africa is an ideal laboratory to use ambient seismic signals to map the shallow subsurface, as it is a quiet and pristine environment with a geology that is relatively well known. Ambient seismic signals were continuously recorded for a ten week period between August and October 2015. The ambient seismic noise network consisted of two groups of 17 temporary, stand-alone seismic stations each. These were installed in the southeastern Cape Karoo region, near the town of Jansenville. Here we present data on the retrieval and coherency of Rayleigh surface waves e

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49

Brauer, B., T. Ryberg, and A. S. Lindeque. "Shallow seismic velocity structure of the Karoo Basin, South Africa." South African Journal of Geology 110, no. 2-3 (2007): 439–48. http://dx.doi.org/10.2113/gssajg.110.2-3.439.

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50

Hodgson, D. M., S. S. Flint, D. Hodgetts, N. J. Drinkwater, E. P. Johannessen, and S. M. Luthi. "Stratigraphic Evolution of Fine-Grained Submarine Fan Systems, Tanqua Depocenter, Karoo Basin, South Africa." Journal of Sedimentary Research 76, no. 1 (2006): 20–40. http://dx.doi.org/10.2110/jsr.2006.03.

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