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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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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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Geological Society of America Bulletin, 1965
The Oligocene-Miocene boundary has not been clearly defined, and its stratigraphic position in Europe is controversial. Because it is a boundary between international stratigraphic units, it should be defined by international agreement in an area with suitable fossils, preferably with planktonic foraminifera, at a horizon that can be identified widely ...
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The Oligocene-Miocene boundary has not been clearly defined, and its stratigraphic position in Europe is controversial. Because it is a boundary between international stratigraphic units, it should be defined by international agreement in an area with suitable fossils, preferably with planktonic foraminifera, at a horizon that can be identified widely ...
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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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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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