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Systematic Report on the Cambrian and Ordovician of Marylandby R. S. Bassler

✍ Scribed by Review by: A. C. McF


Book ID
124038591
Publisher
University of Chicago Press
Year
1922
Tongue
English
Weight
151 KB
Volume
30
Category
Article
ISSN
0022-1376

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πŸ“œ SIMILAR VOLUMES


Notes on the structure and relations of
✍ R. M. Shackleton πŸ“‚ Article πŸ“… 1951 πŸ› John Wiley and Sons 🌐 English βš– 622 KB

## Abstract The oldest visible Pre‐Cambrian rocks in Lleyn are pillow lavas and sediments of the Gwna Group. They are succeeded by rhyolitic tuffs (Gwyddel Beds). Schists and gneisses have been formed from these rocks. The Sarn adamellite intrusion is related to the gneisses. The Pre‐Cambrian rocks