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 216
... major outcrop areas of the Witteberg Group showing the fossil localities . CT - Cape Town , G - Grahamstown , PE - Port Elizabeth , R - Robertson , TR - Touws River , WE - Willowmore , WL - Wupperthal . based on sedimentary facies ...
... major outcrop areas of the Witteberg Group showing the fossil localities . CT - Cape Town , G - Grahamstown , PE - Port Elizabeth , R - Robertson , TR - Touws River , WE - Willowmore , WL - Wupperthal . based on sedimentary facies ...
Page 218
... major erosion surface , but it is thought to be part of an inter - distributary bay fill ( Elliot 1974 ) . SEDIMENT . GRAIN SIZE PALAEOCURRENT COLUMN DIRECTIONS TRENDS TAL DOLLIN 218 ANNALS OF THE SOUTH AFRICAN MUSEUM.
... major erosion surface , but it is thought to be part of an inter - distributary bay fill ( Elliot 1974 ) . SEDIMENT . GRAIN SIZE PALAEOCURRENT COLUMN DIRECTIONS TRENDS TAL DOLLIN 218 ANNALS OF THE SOUTH AFRICAN MUSEUM.
Page 220
... major change in shoreline configuration from a lobate or arcuate deltaic shoreline to a linear barrier - beach shoreline ( Johnson 1976 ) . This change must reflect a reduction in the sediment supply to the shore zone and a decrease in ...
... major change in shoreline configuration from a lobate or arcuate deltaic shoreline to a linear barrier - beach shoreline ( Johnson 1976 ) . This change must reflect a reduction in the sediment supply to the shore zone and a decrease in ...
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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