Abstract
The distribution of altered volcanic ash layers (K-bentonites) and Telychian chitinozoans in four East Baltic drill core sections are compared. This information is integrated with graptolite and conodont biozonations to give a precise correlation chart using four different stratigraphical tools: K-bentonite-based chemostratigraphy; chitinozoan biostratigraphy; graptolite biostratigraphy; and, conodont biostratigraphy. Thickness variations in the K-bentonites suggest that the source of the volcanic ash was to the west and northwest.
Original language | English |
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Pages (from-to) | 32-44 |
Number of pages | 13 |
Journal | Lethaia |
Volume | 43 |
Issue number | 1 |
DOIs | |
Publication status | Published - Mar 2010 |