Definition
Rhyodacite is an extrusive volcanic rock intermediate in composition between dacite and rhyolite
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
History
Origin
USA
European Foreland Basins
Discoverer
Unknown
Arnold H. Bouma
Etymology
Rhyo lite + dacite : a rock intermediate between rhyolite and dacite that is the extrusive equivalent of granodiorite
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Medium Hardness Rock
Durable Rock, Soft Rock
Family
Group
Volcanic
-
Other Categories
Fine Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock