Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1990 - Natural history |
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Page 217
... Formation is the lowest unit of the Witteberg Group ( Fig . 2 ) . It consists essentially of siltstone and shale ... WELTEVREDE FORMATION Fig . 2. Stratigraphic columns for the lower part of the Witteberg Group in the Eastern and Western ...
... Formation is the lowest unit of the Witteberg Group ( Fig . 2 ) . It consists essentially of siltstone and shale ... WELTEVREDE FORMATION Fig . 2. Stratigraphic columns for the lower part of the Witteberg Group in the Eastern and Western ...
Page 218
... Weltevrede Subgroup is occupied by the Witpoort Formation , a thick sequence of white - weathering quartz arenites with thin shale partings and containing plant fossils . In the Eastern Cape the lateral equivalent of the Wagen Drift ...
... Weltevrede Subgroup is occupied by the Witpoort Formation , a thick sequence of white - weathering quartz arenites with thin shale partings and containing plant fossils . In the Eastern Cape the lateral equivalent of the Wagen Drift ...
Page 220
... Weltevrede Formation were deposited during a destructional phase . This involved transgressive marine reworking of ... ( Fig . 5 ) . The sandstone units thin upwards and are overlain by vertical alternations of siltstone and shale in which ...
... Weltevrede Formation were deposited during a destructional phase . This involved transgressive marine reworking of ... ( Fig . 5 ) . The sandstone units thin upwards and are overlain by vertical alternations of siltstone and shale in which ...
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Common terms and phrases
abbreviated AFRICA articulate brachiopods barrier islands basal Witteberg beds benthic assemblages BENTHIC COMMUNITIES Blinkberg Formation Bokkeveld Group Boucot British Museum Natural carbonaceous shales Chonetes comma cross-bedded delta deposited Devonian rocks environmental External mould facies analysis Falkland Islands fauna Frasnian gastropod genus Givetian Grahamstown high-diversity holotype homalonotid trilobite horizontal lamination Howison's Poort inarticulate infaunal interpreted Leda Lingula lepta LOWER WITTEBERG GROUP Museum Natural History Orbiculoidea overlain paratypes parentheses pedicle valve Plectonotus sp punctuation quartz arenite unit registration number ripple cross-laminated sandstone Roman numerals salinity sandstones scientific name sediment SEDIMENTARY FACIES shoreline siltstone and shale Silurian and Devonian SOUTH AFRICAN MUSEUM specimens Spiriferid Stratigraphic subheadings are shouldered suspension feeders SWARTRUGGENS FORMATION Synonymy Tankard & Barwis taxa Theron thin tidal tidal-flat Touws River trace fossils Trigonoglossa Tropidoleptus sp Upper Devonian upward-fining cycles vicinity of Touws volume number Wagen Drift Formation wash-over WELTEVREDE FORMATION Fig Western Cape yielded marine invertebrate
Bibliographic information
| Title | Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum Volume 99, Issue 7 of Annals of the South African Museum, South African Museum |
| Author | South African Museum |
| Publisher | West, Newman & Company for the trustees of the Museum, 1990 |
| Original from | the University of California |
| Digitized | 21 Jul 2016 |
| ISBN | 086813113X, 9780868131139 |
| Export Citation | BiBTeX EndNote RefMan |