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Titolo:
The quest for internationally recognized divisions of Cambrian time
Autore:
Geyer, G; Shergold, J;
Indirizzi:
Univ Wurzburg, Inst Palaontol, Wurzburg, Germany Univ Wurzburg Wurzburg Germany zburg, Inst Palaontol, Wurzburg, Germany La Freunie, F-19510 Masseret, France La Freunie Masseret France F-19510La Freunie, F-19510 Masseret, France
Titolo Testata:
EPISODES
fascicolo: 3, volume: 23, anno: 2000,
pagine: 188 - 195
SICI:
0705-3797(200009)23:3<188:TQFIRD>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRATIGRAPHY; TRILOBITA; SCALE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
61
Recensione:
Indirizzi per estratti:
Indirizzo: Geyer, G Univ Wurzburg, Inst Palaontol, Wurzburg, Germany Univ Wurzburg Wurzburg Germany st Palaontol, Wurzburg, Germany
Citazione:
G. Geyer e J. Shergold, "The quest for internationally recognized divisions of Cambrian time", EPISODES, 23(3), 2000, pp. 188-195

Abstract

Although regional stadial schemes are available, and widely used, on all the major Cambrian continents, Armorica, Australia, Avalonia, Baltica, China, Kazakhstania, Laurentia, Siberia, the system currently has no formally agreed internationally recognized divisions. Since the IUGS Commission on Stratigraphy requires the definition of Global Boundary Stratotype Sections and Points (GSSPs), it has become the prime objective of the International Subcommission on Cambrian Stratigraphy to commence to document suitable biostratigraphic horizons within the system which might assist in achieving thisgoal. In this paper we suggest the consideration of four teen late Early Cambrian-terminal Cambrian levels, and document their stratigraphical and biogeographical distributions. Once agreement within the Subcommission is reached on which are the most suitable, it will be necessary to search for appropriate stratotype sections, bearing in mind the necessity to calibrate the biostratigraphy by way of non-biological correlation techniques, such as chemostratigraphy and magnetostratigraphy.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/09/20 alle ore 21:02:37