Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 5
... Offshore , extensive seismic exploration and deep drilling undertaken by SOEKOR ( Pty ) Ltd have revealed the presence of extensions of the onshore basins , lying beneath the present day Agulhas Bank . The arrangement of the Mesozoic ...
... Offshore , extensive seismic exploration and deep drilling undertaken by SOEKOR ( Pty ) Ltd have revealed the presence of extensions of the onshore basins , lying beneath the present day Agulhas Bank . The arrangement of the Mesozoic ...
Page 37
... offshore borehole sections in the Pletmos and Gamtoos basins ( boreholes drilled to date in the offshore Algoa Basin do not intersect a sufficiently shallow marine , shelf sequence to allow a comparison ) has revealed no obvious seismic ...
... offshore borehole sections in the Pletmos and Gamtoos basins ( boreholes drilled to date in the offshore Algoa Basin do not intersect a sufficiently shallow marine , shelf sequence to allow a comparison ) has revealed no obvious seismic ...
Page 139
... offshore of South Africa , where it is confined to the continental shelf ( McLachlan & McMillan 1979 ) , but more recent work indicates it to range up to the top of the Middle Albian ( McMillan et al . 1997 ) . Its ornamentation pattern ...
... offshore of South Africa , where it is confined to the continental shelf ( McLachlan & McMillan 1979 ) , but more recent work indicates it to range up to the top of the Middle Albian ( McMillan et al . 1997 ) . Its ornamentation pattern ...
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