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Possible correlation of Oligocene climate changes with Ethiopian Oligocene ignimbrite eruptions
Arabian Journal of Geosciences, 2011The Oligocene Ethiopian continental flood basalt province (ca. 29–31 Ma) contains significant silicic pyroclastic rocks (>60,000 km3 constituting up to 20% of the volcanic stratigraphy). Rhyolitic tephras, synchronous with the Ethiopian silicic pyroclastic rocks, are found in Indian Ocean ODP holes 711A.
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Nature, 1965
RECENTLY, Eames, Banner, Blow and Clarke1 stated that strata of Oligocene age are missing in most of America. To support their conclusions, they noted that the Relizian Stage of California was Aquitanian in age and correlated it with the Chickasawhay Formation of the Gulf Coast region.
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RECENTLY, Eames, Banner, Blow and Clarke1 stated that strata of Oligocene age are missing in most of America. To support their conclusions, they noted that the Relizian Stage of California was Aquitanian in age and correlated it with the Chickasawhay Formation of the Gulf Coast region.
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2015
The Oligocene epoch begins at 33.9 mya. Plate tectonic reconstructions demonstrate that, for the first time, the geography of the earth largely resembled that seen today. In particular, the Atlantic and Mediterranean basins had finally achieved a modern aspect (Figures 11.1 and 11.2). Discussions of anthropoid primate origins and dispersal (Chapter 12)
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The Oligocene epoch begins at 33.9 mya. Plate tectonic reconstructions demonstrate that, for the first time, the geography of the earth largely resembled that seen today. In particular, the Atlantic and Mediterranean basins had finally achieved a modern aspect (Figures 11.1 and 11.2). Discussions of anthropoid primate origins and dispersal (Chapter 12)
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Annals of the Carnegie Museum, 1908
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Problematic microscopic trace (?) fossils, Oligocene, Slovakia
Stratigraphy and Geological Correlation, 2013Meioscopic to microscopic capsules found in reddish, probably marine or brackish shales (Oligocene, Pannonian Basin; South Slovakia) are interpreted as possible trace fossils. They may represent burrows of meioscopic in-fauna. Ferruginous walls of the capsules appeared very probably as late as during diagenesis; however, the (possibly organic) matrix ...
R. Mikuláš, D. Boorová, K. Holcová
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The Oligocene Problem: ABSTRACT
AAPG Bulletin, 1935This preliminary report is based upon field and museum investigations in western Europe from August, 1933, to August, 1934. That there are strata situated between beds of late Eocene and early Miocene ages cannot be denied, nor is there any doubt of the succession of the Tongrian, Rupelian, and Chattian stages.
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Planktonic Foraminifera from the American Oligocene
Science, 1964Planktonic foraminiferal assemblages from the Vicksburg group of the Gulf Coast region comprise species comparable with those found in the Oligocene of Tanganyika and northern Europe. The fauna is transitional between typical Upper Eocene and Miocene; its intermediate position is indicative of an Oligocene age.
T, Saito, A W, Bé
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International Geology Review, 1963
Review of the origin of the Oligocene Series and particularly of the Lattorfian Stage. Author concludes that Lattorfian is equivalent to upper Eocene and that base of Oligocene should be placed at base of the Rupelian Stage and its correlatives. A review of the Oligocene divisions and faunas of the North Caucasus, Crimea, South Ukraine, Mangyshlak ...
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Review of the origin of the Oligocene Series and particularly of the Lattorfian Stage. Author concludes that Lattorfian is equivalent to upper Eocene and that base of Oligocene should be placed at base of the Rupelian Stage and its correlatives. A review of the Oligocene divisions and faunas of the North Caucasus, Crimea, South Ukraine, Mangyshlak ...
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Concerning Oligocene amphisbaenid reptiles
1951(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Oligocene birds from Saskatchewan
1963(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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