Grootegeluk Formation

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Journal Article
Published: 02 October 1995
Journal of Sedimentary Research (1995) 65 (4a): 605–613.
...Kevin Faure; Chris Harris; James P. Willis Abstract The coal-bearing sediments of the Grootegeluk Formation of the Waterberg Coalfield contain siderite, ankerite, and calcite of various forms that precipitated during deposition and diagenesis, and have highly variable delta 18 O and delta 13 C...
Journal Article
Published: 01 December 2013
South African Journal of Geology (2013) 116 (2): 323–345.
... grained, scattered peddles 15 m Beaufort Beaufort Beaufort Eendragtpan Formation Mudstone, purple and greenish grey, alternating at top, light grey at base 90 m Ecca Volksrust Upper Ecca Grootegeluk Formation Intercalated mudstone and bright coal 72 m Vryheid Middle Ecca...
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Journal Article
Published: 01 December 2014
South African Journal of Geology (2014) 117 (2): 193–210.
... geochemical work on borehole samples from the Grootegeluk Formation, from which they deduced the palaeoenvironmental setting of the coals. Mtimkulu (2009) studied the gross tectonosedimentary setting of the Waterberg Coalfield under a grant from CRA. Snyman (1998) and Cairncross (2001) gave summary...
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Journal Article
Published: 01 March 2015
South African Journal of Geology (2015) 118 (1): 55–70.
...: Lebombo, Stormberg, Beaufort, Ecca and the Dwyka. The Ecca group is the coal-bearing group in the sequence. The coal-bearing horizon in the Ecca is the Volksrust formation ( Figure 3 ) (also known as the Grootegeluk formation) which has a thickness of 60 m ( Jeffrey, 2005 ) and contains a succession...
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Journal Article
Published: 01 September 2021
South African Journal of Geology (2021) 124 (3): 611–626.
... Formation Coal seam Sample identification Sample Characterisation analyses Mode of occurrence 1. Waterberg   Grootegeluk Bench 3,4,5 Waterberg Zone 8-9 WZ9 x           Waterberg Zone 6-7 WZ7 x x         Waterberg Zone 5 WZ5 x   2. Soutpansberg   Madzaringwe No. 6...
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Journal Article
Published: 18 March 2015
Seismological Research Letters (2015) 86 (3): 908–916.
.... The magnitudes of the events were reassessed during the next phase, which by definition required the instrument response to be verified. The instrument response of the SANSN stations was recreated in NORDIC format (frequency/amplitude/phase) ( Ottemöller et al. , 2012 ) from instrument specifications published...
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Journal Article
Published: 01 June 2016
South African Journal of Geology (2016) 119 (2): 435–452.
.... Lanci et al. (2013) reported magnetostratigraphic results from the upper Permian in the western Karoo Basin along a ~700 m thick sedimentary section from the uppermost Ecca Group (Waterford Formation) to the lowermost Beaufort Group (Abrahamskraal Formation). Palaeomagnetic analysis suggested...
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Journal Article
Published: 01 March 2019
South African Journal of Geology (2019) 122 (1): 1–16.
... of the Waterberg Coalfield (i.e., with Grootegeluk Formation sulphur values ranging from 1.4 to 1.68% and the Vryheid Formation sulphur values of 1.42%). The average sulphur values are also higher than those of the ROM coals of the No. 2 seam (mean sulphur content of 0.96%) in the Witbank Coalfield. The UCZ coal...
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Series: GSA Reviews in Engineering Geology
Published: 01 January 2007
DOI: 10.1130/2007.4118(02)
EISBN: 9780813758183
... viewing is possible in a few formats (e.g., table, graph). The scale of the graph can be set easily. The whole data-capturing and monitoring system is more user-friendly than the earlier one was because there is no longer a need to calibrate the temperature readings. Another major problem is the quality...
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