Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 7
... upper half of the sequence consists of up to 2 000 m of shallow - marine and shelf claystones and sandstones ... Upper Algoa Boundary The upper surface of the Sundays River Formation is marked by an unconformity characterized by ...
... upper half of the sequence consists of up to 2 000 m of shallow - marine and shelf claystones and sandstones ... Upper Algoa Boundary The upper surface of the Sundays River Formation is marked by an unconformity characterized by ...
Page 14
... UPPER UPPER VALANGINIAN ZONE D : RARE OSTRACODS DIVERSE OSTRACOD ASSEMBLAGES SEE BRENNER & OERTLI 1976 , TABLE II & VALICENTI & STEPHENS 1984 , P.207 . colchesterensis 1510 ' V Lower Epistomina hechti 1540 ' VI Dorothia inglesidensis ...
... UPPER UPPER VALANGINIAN ZONE D : RARE OSTRACODS DIVERSE OSTRACOD ASSEMBLAGES SEE BRENNER & OERTLI 1976 , TABLE II & VALICENTI & STEPHENS 1984 , P.207 . colchesterensis 1510 ' V Lower Epistomina hechti 1540 ' VI Dorothia inglesidensis ...
Page 33
... upper surface of Biozone I is everywhere unconformable , and overlain by the Pleistocene upper Algoa Group . Outcrops may occur in the Spring Valley area , but these are probably very limited . Diverse foraminifera faunas occur through ...
... upper surface of Biozone I is everywhere unconformable , and overlain by the Pleistocene upper Algoa Group . Outcrops may occur in the Spring Valley area , but these are probably very limited . Diverse foraminifera faunas occur through ...
Contents
Introduction | 5 |
Foraminiferal biozonation of the Sundays River Formation | 33 |
The Algoa Basin outcrops | 44 |
Copyright | |
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Agrio Formation Albian ammonites apertural view Aptian Argentina assemblages Astacolus Barremian Bartenstein & Brand Berriasian Bettenstaedt borehole borehole PB-A1 Citharina Cliff outcrop sample Coega Coega Brick Pits core Dentalina DIEGO Dorothia dorsal margin down-hole appearance Early Barremian Early Cretaceous Early Hauterivian environments Eoguttulina Epistomina caracolla Espitalié & Sigal feet VII Figure final chamber final whorl foraminifera genus Graaff-Reinet grey claystone Haplophragmoides sp hofkeri Holotype illustrated Kimmeridgian Kirkwood Formation Lagena Late Hauterivian Biozone Late Valanginian Biozone lignite Lingulina Loeblich & Tappan Magniez-Jannin 1975 Majunga Basin Masiuk & Viña McLachlan Mngazana Basin Musacchio Nodosaria occur offshore ornamentation ostracods Paratype Planularia Pletmos Basin Portlandian rare lignite Reinholdella valendisensis Remarks Reuss Río Mayer Roemer shallow borehole shelf shell side view silty SOEKOR negative South Africa southern species specimens Stratigraphic range Sundays River Formation sutures test periphery test wall Trochammina Uitenhage Uitenhage to Graaff-Reinet Vaginulinopsis weakly Zoetgeneugd Cliff outcrop