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 ... BLINKBERG FM marine fossils WAGEN DRIFT FM EASTERN CAPE WITPOORT FORMATION marine fossils WELTEVREDE FORMATION Fig . 2 ...
... Formation is the lowest unit of the Witteberg Group ( Fig . 2 ) . It consists essentially of siltstone and shale ... BLINKBERG FM marine fossils WAGEN DRIFT FM EASTERN CAPE WITPOORT FORMATION marine fossils WELTEVREDE FORMATION Fig . 2 ...
Page 218
... Formation is the Blinkberg Formation , an extremely mature quartz arenite unit , which contains some plant fossils . This in turn , is overlain by the Swartruggens Formation , a relatively thick heterolithic unit comprising siltstone ...
... Formation is the Blinkberg Formation , an extremely mature quartz arenite unit , which contains some plant fossils . This in turn , is overlain by the Swartruggens Formation , a relatively thick heterolithic unit comprising siltstone ...
Page 222
... Formation represents the subaqueous portion of a delta and that the overlying quartz arenites of the Blinkberg Formation are the products of reworking of the delta , much the same as Tankard & Barwis ( 1982 ) described from the ...
... Formation represents the subaqueous portion of a delta and that the overlying quartz arenites of the Blinkberg Formation are the products of reworking of the delta , much the same as Tankard & Barwis ( 1982 ) described from the ...
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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