Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1991 - Natural history |
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Page 11
... wave loading liquefaction and ebbing storm surge INNER SHELF MUD AND SAND deposited under the influence of tidal currents local wind - generated currents and waves . Restricted biota -shallow marine sediment - dwellers INNER SHELF ...
... wave loading liquefaction and ebbing storm surge INNER SHELF MUD AND SAND deposited under the influence of tidal currents local wind - generated currents and waves . Restricted biota -shallow marine sediment - dwellers INNER SHELF ...
Page 21
... wave energy regimes in shallow marine settings , ranging from shallow shelf and shoreface to estuarine and tidal - flat environments . CRUZIANA ICHNOFACIES The Cruziana ichnofacies model ( Seilacher 1967 ;. TRACE FOSSILS OF THE SARDINIA ...
... wave energy regimes in shallow marine settings , ranging from shallow shelf and shoreface to estuarine and tidal - flat environments . CRUZIANA ICHNOFACIES The Cruziana ichnofacies model ( Seilacher 1967 ;. TRACE FOSSILS OF THE SARDINIA ...
Page 23
... wave and current activity , which could have been responsible for restricting both the number of sediment - dwelling organisms and the degree of bioturbation . The ichnofaunal diversity was not so restricted , however , which suggests ...
... wave and current activity , which could have been responsible for restricting both the number of sediment - dwelling organisms and the degree of bioturbation . The ichnofaunal diversity was not so restricted , however , which suggests ...
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Common terms and phrases
abbreviated bioturbated burrow fill callianassid decapods Cape Town Chondrites cm Fig cm in diameter colonization by sediment-dwellers correlation cross-section Cruziana ichnofacies model currents and waves decapods depositional environment Description Differential weathering Diplocraterion disseminated pyrite EARLY ORDOVICIAN SARDINIA Ekdale epeiric sea FACIES INTERPRETATIONS Fascifodina Figure Frey & Pemberton Gastropoda Häntzschel 1975 holotype ichno ichnogenus indicate INNER SHELF MEGARIPPLE INNER SHELF MUD INNERMOST SHELF MUD interval Irregular U-tubes Leda MUD AND SAND Mudrock units namacolus occur Ophiomorpha paper paratypes parentheses Pemberton 1984 Port Elizabeth punctuation quartzite references relict sedimentary structures Restricted biota rocks Roman numerals sandstone sole Sardinia Bay Formation scientific name sediment sediment-dwelling organisms sedimentary structures Seilacher 1967 shafts shallow marine Shone shoreface Skolithos ichnofacies Skolithos tubes sole marking SOUTH AFRICAN MUSEUM Spreiten demarcated sub-horizontal Synonymy Table Mountain Group Thalassinoides tidal currents trace fossil assemblages trace fossil association traces resembling Upper Sardinia Bay V-shaped pattern Vermiform sand-filled tubes vertical burrows