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Skurweberg Formation

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Journal Article
Published: 01 June 2019
South African Journal of Geology (2019) 122 (2): 187–220.
... group which is comprised of three upward coarsening successions: the Faanshoek - and Faansgeluk formations, the Maraisdraai - and Vuilnek formations and the Opwag - and Skurweberg formations. The Groblershoop group is in turn erosively overlain by the rocks of the Wilgenhoutsdrif Group , which include...
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Schematic representation of a measured section through the <b>Skurweberg</b> forma...
Published: 01 June 2019
Figure 17. Schematic representation of a measured section through the Skurweberg formation (Groblershoop group) in the vicinity of the Gariep anticline as observed on the farm Boegoeberg 48 (section line E-E’ in Figure 11 ). The total thickness of the Skurweberg formation at this locality is ~3
Journal Article
Published: 01 September 2019
South African Journal of Geology (2019) 122 (3): 317–330.
... at several locations had stable isotope compositions different from ambient rainfall, but similar to rainfall at high altitudes in adjacent mountains, indicating recharge at high altitude. The groundwater flow is through the Skurweberg Aquifer, here defined as all three formations of the Nardouw Subgroup...
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Lithostratigraphic correlation of the Port Stephens <b>Formation</b> and Nardouw S...
Published: 01 May 2003
; Pla, Plantation Member; PT, Pakhuis Tillite; CF, Cebarberg Formation; GF, Goudini Formation; SF, Skurweberg Formation; RF, Rietvlei Formation; BF, Baviaanskloof Formation. Key to symbols is given in the Supplementary Publication.
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Selected field observations at Thyspunt.  (a)  TMG bedrock contacts beneath...
Published: 01 December 2017
Figure 4. Selected field observations at Thyspunt. (a) TMG bedrock contacts beneath overburden sediments at Thyspunt. (b) The upper transitional contact between the Goudini and Skurweberg Formations at Thyspunt. (c) Delineation of intraformational units within the Skurweberg Formation
Journal Article
Published: 01 May 2003
Journal of the Geological Society (2003) 160 (3): 459–476.
...; Pla, Plantation Member; PT, Pakhuis Tillite; CF, Cebarberg Formation; GF, Goudini Formation; SF, Skurweberg Formation; RF, Rietvlei Formation; BF, Baviaanskloof Formation. Key to symbols is given in the Supplementary Publication. ...
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Journal Article
Published: 01 June 2011
South African Journal of Geology (2011) 114 (2): 167–194.
... ). The Wilgenhoutsdrif Group occurs only to the east of the Trooilapspan Shear and unconformably overlies the Skurweberg Formation and Witkop Member of the Groblershoop Group of the Keis Supergroup ( Van Niekerk, 2006 ; Figure 1 ) but has been subjected to intense local shearing and polyphase folding ( Stowe, 1986...
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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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Selected field and petrographic illustrations of TMG sequences,  (a)  Thin ...
Published: 01 December 2017
of quartzites from the Skurweberg Formation. (j) Quartzites of the Skurweberg Formation interbedded with a 3 m quartz-wacke unit. Note the development of a gully trending parallel to bedding as the lithologically less competent grey-wacke unit erodes out. (k ) Photomicrograph of Skurweberg Formation quartz
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Geological map indicating the distribution of the rocks of the Opwag- and S...
Published: 26 October 2020
Figure 9. Geological map indicating the distribution of the rocks of the Opwag- and Skurweberg formations of the Groblershoop group of the Keis supergroup ( Van Niekerk, 2006 ; Van Niekerk and Beukes, 2019 ) in the vicinity of the town of Groblershoop, indicating the locations of the samples
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Sections and     2   1  2      D model of palaeovalleys in the study area. ...
Published: 01 December 2017
of the competent Skurweberg Formation.
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Fold structures associated with the Cape St. Francis anticline.  (a)  Stere...
Published: 01 December 2017
the dominant trend and plunge of mesoscale fold axes at shallow to moderate angles to the east-southeast and southeast – parallel to subparallel to the Cape St. Francis anticline. (e) Tight inclined isoclinal folds observed in quartzite of the Skurweberg Formation, ~2 km southeast of Oyster Bay. Note both
Series: Geological Society, London, Special Publications, Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP423.13
EISBN: 9781862399556
... three sequences are transgressive and were dated by Grahn et al. (2013) as Pragian–Emsian in age. This correlation indicates that there are strong lithological parallels between the coherent sandstones of the South Harbour Member (Port Stephens Formation) and the Skurweberg Formation (Nardouw...
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Journal Article
Published: 01 June 2014
South African Journal of Geology (2014) 117 (1): 109–128.
... ). Within the study area, the Table Mountain Group bedrock comprises five sedimentary formations: the Peninsula, Cedarberg, Goudini, Skurweberg and Baviaanskloof Formations ( Figure 1 and Table 1 ). Inadequate exposure prevented differentiation of the predominantly argillaceous Bokkeveld Group ( Figure 1...
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Journal Article
Published: 01 December 2017
South African Journal of Geology (2017) 120 (4): 459–476.
...Figure 4. Selected field observations at Thyspunt. (a) TMG bedrock contacts beneath overburden sediments at Thyspunt. (b) The upper transitional contact between the Goudini and Skurweberg Formations at Thyspunt. (c) Delineation of intraformational units within the Skurweberg Formation...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 2015
AAPG Bulletin (2015) 99 (1): 155–180.
...°, 20.526007°) (Figures  1 , 3 ). The Ouberg Pass section runs from the top of the Waterford Formation into the overlying Abrahamskraal Formation. The section totals 549 m (1801 ft) and exposure is generally good (Figure  3B ). The section at Skurweberg Pass lies approximately 7 km (4.4 mi) to the north...
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Journal Article
Published: 26 October 2020
South African Journal of Geology (2020) 123 (4): 441–464.
...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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Journal Article
Published: 01 September 2019
South African Journal of Geology (2019) 122 (3): 269–282.
... of Groundwater . New York : Dover Publications . Blake , D. , Mlisa , A. and Hartnady , C. , 2010 . Large scale quantification of aquifer storage and volumes from the Peninsula and Skurweberg Formations in the southwestern Cape . Water SA , 36 , 177 – 184 . Blatt , H...
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Journal Article
Published: 03 June 2014
Bulletin of the Seismological Society of America (2014) 104 (4): 1601–1619.
... a known distance apart. Testing was performed in 21 boreholes located on the Goudini formation, 4 boreholes on the Cedarberg formation, 3 boreholes on the Skurweberg formation, and 1 borehole on the Peninsula formation. The Skurweberg and Peninsula formations are stiffer than the Goudini formation...
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Journal Article
Published: 01 May 2015
Earthquake Spectra (2015) 31 (2): 661–698.
... the site, which in order of decreasing age are the Peninsula, Cedarberg, Goudini, and Skurweberg Formations. The Peninsula and Skurweberg Formations consist primarily of quartzitic sandstone, the Cedarberg Formation consists of black shale, and the Goudini Formation consists of finer-grained quartzitic...
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