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
... basal unit of the Witteberg Group in the vicinity of Touws River . Theron ( 1970 , 1972 ) , who had also collected in the Touws River area , used brachiopods and a trilobite as a basis for assigning a Lower to Middle Devonian or ...
... basal unit of the Witteberg Group in the vicinity of Touws River . Theron ( 1970 , 1972 ) , who had also collected in the Touws River area , used brachiopods and a trilobite as a basis for assigning a Lower to Middle Devonian or ...
Page 220
... basal 10-12 m these are brownish in colour , fine to medium grained , and display horizontal lamination and ripple cross - lamination . Above this level the sandstones are cleaner , slightly coarser grained , greyish quartz arenites ...
... basal 10-12 m these are brownish in colour , fine to medium grained , and display horizontal lamination and ripple cross - lamination . Above this level the sandstones are cleaner , slightly coarser grained , greyish quartz arenites ...
Page 222
... basal Witteberg beds are part of a regressive cycle that follows directly on from similar cycles in the Bokkeveld Group . Tankard et al . ( 1982 ) indicated that the Wagen Drift Formation represents the subaqueous portion of a delta and ...
... basal Witteberg beds are part of a regressive cycle that follows directly on from similar cycles in the Bokkeveld Group . Tankard et al . ( 1982 ) indicated that the Wagen Drift Formation represents the subaqueous portion of a delta and ...
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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 |