Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum, Volume 106South African Museum, 2003 - Natural history |
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Page 17
... borehole PB - A1 : forty - four foraminifera species , one new , were recognized in rocks equivalent in age to the Sundays River Formation . Subsequently , both the Brenton and PB - A1 material has been extensively re - examined , and a ...
... borehole PB - A1 : forty - four foraminifera species , one new , were recognized in rocks equivalent in age to the Sundays River Formation . Subsequently , both the Brenton and PB - A1 material has been extensively re - examined , and a ...
Page 43
... borehole PB - A1 , the Brenton Formation and the Mngazana Formation . Re - examination of offshore borehole PB - A1 ( originally detailed by McLachlan et al . 1976b ) , following extensive re - processing of samples in the late 1970s ...
... borehole PB - A1 , the Brenton Formation and the Mngazana Formation . Re - examination of offshore borehole PB - A1 ( originally detailed by McLachlan et al . 1976b ) , following extensive re - processing of samples in the late 1970s ...
Page 249
... borehole sections , especially AL 1/69 . Only a few tests are sufficiently well preserved to merit photography . However , preservation is very much better in Pletmos Basin borehole PB - A1 , and the test illustrated by McLachlan et al ...
... borehole sections , especially AL 1/69 . Only a few tests are sufficiently well preserved to merit photography . However , preservation is very much better in Pletmos Basin borehole PB - A1 , and the test illustrated by McLachlan et al ...
Contents
Introduction | 5 |
Foraminiferal biozonation of the Sundays River Formation | 33 |
The Algoa Basin outcrops | 44 |
Copyright | |
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Common terms and phrases
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