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Volcanism and Fossil Biotas
Editor(s)
Geological Society of America
Copyright:
© 1990 Geological Society of America
Geological Society of America
ISBN print:
9780813722443
Publication date:
January 01, 1990
Book Chapter
Preservation, evolution, and extinction of plants in Lower Carboniferous volcanic sequences in Scotland
Author(s)
-
Published:January 01, 1990
Diverse anatomically preserved plant assemblages occur abundantly in Lower Carboniferous volcanic sequences in the Midland Valley Basin, Scotland. They are preserved as calcareous permineralizations and as fusain (fossil charcoal). The plants occur in basaltic ashes, lavas, peats, and limestones. Many of the assemblages occur in deposits that are interpreted as products of phreatomagmatic activity. Numerous genera and species occur specifically in volcanic rocks. The volcanic activity may have stimulated the diversification of early ferns and pteridosperms in particular, as well as causing ecological disturbance and vegetational change.
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Index Terms/Descriptors
- Arran
- assemblages
- biologic evolution
- biostratigraphy
- carbonate rocks
- Carboniferous
- Dinantian
- Europe
- extinction
- fusain
- Great Britain
- igneous rocks
- lava
- limestone
- lithofacies
- lithostratigraphy
- lithotypes
- macerals
- Midland Valley
- organic residues
- paleoecology
- Paleozoic
- peat
- Plantae
- Scotland
- sedimentary rocks
- sediments
- species diversity
- stratigraphy
- United Kingdom
- Visean
- volcanic ash
- volcanic rocks
- Western Europe
- East Kirkton
- Pettycur
- Kingswood
- Oxroad Bay
- Loch Humphrey Burn
- Weaklaw
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