Author | : John Brian Richardson |
File Size | : 50,8 Mb |
Publisher | : Unknown |
Language | : English |
Release Date | : 30 May 1986 |
ISBN | : STANFORD:36105021252411 |
Pages | : 100 pages |
Silurian and Devonian Spore Zones of the Old Red Sandstone Continent and Adjacent Regions by John Brian Richardson Book PDF Summary
"Spores are widespread in marine and nonmarine rocks of Silurian and Devonian age. However, to date no comprehensive spore zonation for the whole of the Silurian and Devonian systems has been proposed. This report describes such a zonation for North America and Europe. New spore zones are calibrated with zones exclusively in marine strata. Thus, a basis for direct time correlation of widespread marine and continental rocks of the Silurian and Devonian of Canada is established in this report. It also provides data that may be useful for the international definition of geological boundaries." --