Definition
Tonalite is a coarse-grained plutonic rock consisting mainly of sodic plagioclase, quartz, and hornblende or other mafic minerals with phaneritic texture
A sedimentary rock, deposit of a submarine turbidity currents and are composed of layered particles
History
Origin
Tonale, Italy
European Foreland Basins
Discoverer
Warren Hamilton
Arnold H. Bouma
Etymology
From Tonale Pass, northern Italy, + -ite1
From Medieval Latin turbiditas, from Latin turbidus (turbid). Turbidity current is from 1939
Class
Igneous Rocks
Sedimentary Rocks
Sub-Class
Durable Rock, Hard Rock
Durable Rock, Soft Rock
Family
Group
Plutonic
-
Other Categories
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock
Coarse Grained Rock, Fine Grained Rock, Opaque Rock