Results 271 to 280 of about 2,710,958 (297)
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Definition of Late Cretaceous Stage Boundaries in Antarctica Using Strontium Isotope Stratigraphy
The Journal of Geology, 2000Abstract New 87Sr/86Sr analyses of macrofossils from 13 key marker horizons on James Ross and Vega Islands, Antarctica, allow the integration of the Antarctic Late Cretaceous succession into the standard biostratigraphic zonation schemes of the Northern Hemisphere. The 87Sr/86Sr data enable Late Cretaceous stage boundaries to be physically located with
McArthur, J.M. +2 more
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New data on ammonites and stratigraphy of the Volgian stage in Spitzbergen
Stratigraphy and Geological Correlation, 2010The stratigraphy of the Volgian in Spitzbergen is refined based on the new fossil collections. The lower Volgian is poorly characterized by ammonites being not subdivided into zones, and the only recognized stratigraphic unit within it are the Beds with Paravirgatites sp. in the upper part of the lower Volgian.
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Ordovician series and stages in Chinese stratigraphy: steps toward a global usage
Alcheringa: An Australasian Journal of Palaeontology, 2001The first Chinese Ordovician series was erected by Lee & Chao (1924). Since then, many regional Ordovician series and stage names have been established and mostly published in Chinese. The present study is a review of these regional units with a discussion of their definitions and correlation to the international standard. Among them, the Ichang series,
Chen Xu +3 more
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Cambrian stratigraphy and stage subdivision in the Holy Cross Mountains, Poland
Geological Magazine, 1992AbstractThe lithostratigraphic and biostratigraphic subdivisions of the Cambrian sequence in the Holy Cross Mountains of Poland are briefly presented and discussed. In accordance with recent progress in Cambrian stratigraphy and correlation in Great Britain and Scandinavia, a new proposal for chronostratigraphic stages is made.
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Problems of Rhaetian stratigraphy with special reference to the lower boundary of the stage
Quarterly Journal of the Geological Society of London, 1970The use of ‘Rhaetic’ as an international lithostratigraphical term is rejected in favour of a national terminology. The establishment, type-region and a possible standard section for the Rhaetian, and a marker point for its base are discussed.
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The stratigraphy of the Callovian and Oxfordian stages (Middle-Upper Jurassic) in northern Scotland
Scottish Journal of Geology, 1975Synopsis Outcrops of Middle-Upper Jurassic rocks in northern Scotland are restricted to two sedimentary basins. In the east exposures at Brora (Sutherland) and Balintore (Ross-shire) are part of the Moray Firth basin. In the west major exposures at Staffin and in Strathaird (Isle of Skye) belong to the Minch basin.
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Stratigraphy and Geological Correlation, 2016
Conodonts from the deposits of the Mosolovian Regional Stage (Middle Devonian) of the Voronezh Anteclise are studied on the basis of the data from six boreholes. Three assemblages are recognized. The index species of the lowermost assemblage is Icriodus formosus Naz. The index species of the middle assemblage are I. formosus Naz.
V. M. Nazarova, L. I. Kononova
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Conodonts from the deposits of the Mosolovian Regional Stage (Middle Devonian) of the Voronezh Anteclise are studied on the basis of the data from six boreholes. Three assemblages are recognized. The index species of the lowermost assemblage is Icriodus formosus Naz. The index species of the middle assemblage are I. formosus Naz.
V. M. Nazarova, L. I. Kononova
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Proceedings of the Yorkshire Geological Society, 2007
SUMMARY The recent suggestion that no warm-stage deposits have yet been found separating glacial sediments in lowland southern and eastern Britain is shown to be incorrect. At Morston, on the coast of north Norfolk, an ancient beach succession with a temperate pollen assemblage rests upon till closely comparable with the Marly Drift, usually ...
Gale, Stephen, Hoare, Peter
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SUMMARY The recent suggestion that no warm-stage deposits have yet been found separating glacial sediments in lowland southern and eastern Britain is shown to be incorrect. At Morston, on the coast of north Norfolk, an ancient beach succession with a temperate pollen assemblage rests upon till closely comparable with the Marly Drift, usually ...
Gale, Stephen, Hoare, Peter
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Journal of the Geological Society of Australia, 1976
Abstract Detailed mapping of 150 km2 area of pediment south of Glenormiston Station Homestead, western Queensland has shown that the lower Upper Cambrian Georgina Limestone comprises over 400 m of interbedded limestone and clastic lithologies. Limestone accounts for some 30% of the formation and constitutes two distinct facies: abundantly fossiliferous,
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Abstract Detailed mapping of 150 km2 area of pediment south of Glenormiston Station Homestead, western Queensland has shown that the lower Upper Cambrian Georgina Limestone comprises over 400 m of interbedded limestone and clastic lithologies. Limestone accounts for some 30% of the formation and constitutes two distinct facies: abundantly fossiliferous,
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Conodonts and Stratigraphy of the Meramecian Stage (Upper Mississippian) in Kansas
Bulletin (Kansas Geological Survey), 1968Thomas L. Thompson, Edwin D. Goebel
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