from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of a class of ultramafic mantle-derived volcanic rocks that have a high magnesium content
Nature journal that a rare form of magmatic rock known as komatiite was formed in the earth's mantle at temperatures around 1700°C in the Archaean age, more than 2700 million years ago.
The project is also considered prospective for both intrusion-related (Ni-Cu-PGE) and komatiite flow-related Ni-sulphide mineralisation.
The Gum Creek Project is considered prospective for intrusion-related (Ni-Cu-PGE), komatiite flow-related (Ni) sulphide mineralisation and iron ore.
A11 A 309ppm Cu, A conductor To be completed Petrology and Trend 150ppm Ni 1000m long, prior to probe confirm the and 159ppm broad shoulder drilling presence of Cr soil to Fe-form komatiite and anomaly, conductor nickel sulphide max, similar to in this area, elevated discovery same stratigraphy along trend as discovery
These till samples were taken along a 22km strike of the Providence Lake Green Stone belt which hosts the magmatic, komatiite-hosted nickel-copper-cobalt and platinum group element (Ni-Cu-Co-PGE) sulphide discovery made by Arctic in 2008.
Within this sequence the company has intersected komatiite and sulphidic BIF units at least
The first "hot-melting" model assumes the komatiite was formed through the melting of a mantle source at temperatures up to 500°C hotter than today's mantle temperature.
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