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- Volume 115 (1992)
- Fascicule 2 - Devonian-Carboniferous boundary
- Identification of a bentonic ash layer by crystal morphology of its zircon population (Bed 79, Hasselbachtal, Rheinisches Schiefergebirge)
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Identification of a bentonic ash layer by crystal morphology of its zircon population (Bed 79, Hasselbachtal, Rheinisches Schiefergebirge)
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Abstract
The highly altered volcanic ash layer of Bed 79 in the Hasselbachtal Section, Rheinisches Schiefergebirge, close to the base of the Carboniferous, contains a population of magmatogenic, idiomorphic zircons with distinctive crystal morphological features. The ash was air-borne and at Hasselbachtal was far from its source. The ash layer is therefore likely to have had a wide original distribution and should be present in other rock successions of the same age deposited in a low energy hydrodynamic environment.
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A propos de : Josef Winter
Geologisch-Paläontologisches Institut der Universität Senckenberg-Anglage 32-34, 6000 Frankfurt a.M. 1.