Definition
Shonkinite is a rare, dark-coloured and intrusive igneous rock which contains augite and orthoclase feldspar as its primary constituents
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
From the name of Shonkin Sag ranges in the Highwood Mountains of north-central Montana, US
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
-
-
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock