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An Upper Carboniferous tonstein of volcanic origin

✍ Scribed by D. A. SPEARS; C. M. RICE


Book ID
110862478
Publisher
John Wiley and Sons
Year
1973
Tongue
English
Weight
923 KB
Volume
20
Category
Article
ISSN
1469-3496

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Radiometric ages of the Fire Clay tonste
✍ Paul C. Lyons; T.E. Krogh; Y.Y. Kwok; Donald W. Davis; William F. Outerbridge; H πŸ“‚ Article πŸ“… 2006 πŸ› Elsevier Science 🌐 English βš– 221 KB

The Fire Clay tonstein [Pennsylvanian (Upper Carboniferous), Westphalian Series, Duckmantian Stage]-a kaolinized, volcanicash deposit occurring in Kentucky, West Virginia, Tennessee, and Virginia-is the most widespread bed in the Middle Pennsylvanian of the central Appalachian basin, USA. A concorda