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The Precambrian–Cambrian boundary problem in Siberia and some general problems of stratigraphy (Preliminary Report)

Published online by Cambridge University Press:  01 May 2009

V. E. Savitsky
V. E. Savitsky
Affiliation:
SNIIGGIMSKrasny Prospekt 67Novosibirsk 104U.S.S.R.
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Summary

Two regions are considered to be the best for the definition of the Cambrian lower boundary in Siberia – in Yakutia (the middle course of the Aldan River), in Western Prianabarye (at the Kotuikan and Kotui). The stratigraphical relationships in these 2 regions are described. Some general problems of stratigraphy are then raised (a) the need to use lithologic-facies, palaeogeography and biostratigraphy together, (b) the boundary stratotype method of delimiting chronostratigraphical subdivisions and (c) the earliest trilobite zones, the Ediacara fauna and geochronology.

Type
Articles
Information
Geological Magazine , Volume 115 , Issue 2 , March 1978 , pp. 127 - 130
Copyright
Copyright © Cambridge University Press 1978

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