Laouni West intrusion, Laouni, Ahaggar Mtn (Hoggar Mtn), Tamanghasset Province, AlgeriaThe Laouni West intrusion forms one of four small intrusive massifs regrouped into the "Pan-African Laouni igneous Complex". The age of the intrusions ranges between 600 and 540 Ma. The ortho-ultrabasic cumulates are cyclic and show a succession of olivine-, chromite-, bronzite- and plagioclase-rich cumulates.
Lorand, J.-P. et al. Occurrence and petrological significance of Loveringite in the Western Laouni Layered Complex, Southern Hoggar, Algeria. Can Miner. (1987) 25, 683-693
22 entries listed. 12 valid minerals.
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Locality Updated: Line pit (Lowe's Mine), State Line District, Cecil Co., Maryland, USAFrom Bill Cordua, 9th Dec 2013 21:28:40