Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 219
GRAIN SIZE PALAEOCURRENT COLUMN DIRECTIONS TRENDS TAL DOLLIN HOLER - n = 28 N n = 12 ENVIRONMENTAL INTERPRETATIONS BARRIER ISLAND COMPLEX CHANNELED TIDAL FLATS DISTRIBUTARY MOUTH BAR STRATIGRAPHIC SUBDIVISIONS WITPOORT FORMATION ...
GRAIN SIZE PALAEOCURRENT COLUMN DIRECTIONS TRENDS TAL DOLLIN HOLER - n = 28 N n = 12 ENVIRONMENTAL INTERPRETATIONS BARRIER ISLAND COMPLEX CHANNELED TIDAL FLATS DISTRIBUTARY MOUTH BAR STRATIGRAPHIC SUBDIVISIONS WITPOORT FORMATION ...
Page 221
Reinson ( 1984 ) has noted that wash - over is one of the main processes by which barrier islands migrate landward and that ... Black carbonaceous shale of lagoonal origin , overlain and underlain by barrier island sandstones , Witpoort ...
Reinson ( 1984 ) has noted that wash - over is one of the main processes by which barrier islands migrate landward and that ... Black carbonaceous shale of lagoonal origin , overlain and underlain by barrier island sandstones , Witpoort ...
Page 222
The first of these is well known from the Bokkeveld Group and its Falkland Islands and South American correlatives . The bivalves are too poorly preserved for even generic identification . The assemblage is dominated by brachiopods but ...
The first of these is well known from the Bokkeveld Group and its Falkland Islands and South American correlatives . The bivalves are too poorly preserved for even generic identification . The assemblage is dominated by brachiopods but ...
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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