𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Faunal Provinces in the Ordovician of North Atlantic Areas

✍ Scribed by LINDSTRÖM, M.


Book ID
109670489
Publisher
Nature Publishing Group
Year
1970
Tongue
English
Weight
205 KB
Volume
225
Category
Article
ISSN
0028-0836

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Graptolite dating of Ordovician vulcanic
✍ Jan Zalasiewicz 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 English ⚖ 722 KB

Graptolite assemblages of multidens Biozone age have been recovered from mudstones immediately above and below the Llyn Conwy Formation, the local representative of the regionally extensive acid tuffs that mark the end of vulcanicity in the south and east of the Harlech Dome. They include several ta