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The petrology and geochemistry of volcanic rocks from the Northern Harşit river area, Pontid Volcanic Province, Northeast Turkey

✍ Scribed by Eǧin, D.; Hirst, D.M.; Phillips, R.


Book ID
122706006
Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
984 KB
Volume
6
Category
Article
ISSN
0377-0273

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The petrology of some volcanic rocks fro
✍ Ian Ridley 📂 Article 📅 1971 🏛 Springer 🌐 English ⚖ 945 KB

On Rhum, Eigg, Canna and Muck Tertiary volcanics rest upon a Mesozoic or Pre-Mesozoic basement. Aphyric, olivine-phyric, and plagioclase-phyric basalts are recognized. The aphyric basalts are mildly alkaline or transitional types with either a few percent normative nepheline or normative hypersthene