Gabbro-diorite

Rock type: 
Igneous
Age: 
50 millions years
Tags: 
Gabbro-diorite, pluton, Eocene, massive texture, plagioclase, clinopyroxene, hornblende, biotite, quartz, apatite
Submitted 4 years 8 months ago by rock.

Gabbro-diorite pluton. Sikhote-Alin series of Eocene subintrusions. Eocene. Massive texture. Consist: plagioclase - 55-60%, clinopyroxene - 15–20%, hornblende - 10-15%, biotite - 5-10%, quartz - 1–5%. Accessory: apatite. νδ₽2

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