Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 216
... the lower divisions of the Witteberg Group near Robertson . Hiller & Dunlevey (
1978 ) recorded brachiopods , bivalves and possible bryozoa from one of several
localities in the basal unit of the Witteberg Group in the vicinity of Touws River .
... the lower divisions of the Witteberg Group near Robertson . Hiller & Dunlevey (
1978 ) recorded brachiopods , bivalves and possible bryozoa from one of several
localities in the basal unit of the Witteberg Group in the vicinity of Touws River .
Page 220
In the 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 ...
In the 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
A similar detailed facies analysis is not available for the lower part of the
Witteberg Group in the Western Cape but Theron ( 1970 ) stated that the basal
Witteberg beds are part of a regressive cycle that follows directly on from similar
cycles in ...
A similar detailed facies analysis is not available for the lower part of the
Witteberg Group in the Western Cape but Theron ( 1970 ) stated that the basal
Witteberg beds are part of a regressive cycle that follows directly on from similar
cycles in ...
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Common terms and phrases
abbreviated according AFRICA articulate brachiopods association author's name authors basal bedding benthic assemblages BENTHIC COMMUNITIES bivalves Blinkberg Bokkeveld Group Boucot capital collected communities consists containing cycles delta deposited described Devonian Devonian rocks differences DISTRIBUTARY diversity dominated Eastern environment environmental fauna figures gastropod homalonotid Howison's Poort illustrations inarticulate indicate infaunal interpreted intertidal Islands italics known letters Lingula localities lower major marine marine invertebrates mark Member Middle mould Museum Natural History nearshore Note occur original parentheses placed plant fossils Plectonotus punctuation quartz arenites range recorded references represent reworking salinity sandstones scientific sediment SEDIMENTARY FACIES separates sequence shales shallow siltstone similar Smith South African species specimens Stratigraphic subtidal suggest Tables Tankard thick thin Touws River trace fossils trilobite unit upper valve Wagen Drift Formation Weltevrede Formation Western Cape Witpoort Formation Witteberg Group yielded Zoophycos