RESEARCH GROUP

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Mineral Resources and Geofluids
 

Ore Deposits Introductory Course

Prof. Lluís Fontboté and collaborators

 

Slides to Chapter D

Ore deposits in mafic and ultramafic intrusive rocks, without alkaline rocks

Example : Chromite deposit, Ni-PGE in layered mafic intrusions

Sudbury

Schatter cones in Huronian Quartzites at Sudbury, Canada
Shatter cones are conical fractures typical of rocks having been subjected to shock.
In the case of Sudbury, they have been attributed to a meteorite impact.
Photo: Lluís Fontboté, 1999.09.09/03
Click on the picture for an enlarged version of this photograph

 

Ronda Schlieren

Chromite "Schlieren" in the ultramafic body of Ronda. Photo: Lluís Fontboté, 2000.0./321
Click on the picture for an enlarged version of this photograph

Ronda

Massive Chromite (Ni-Cu) vein in the Baeza mine, Ojén Massif, Ronda. The Los Jarales polished section pictured in this polished section comes from a nearby similar deposit. Photo Lluís Fontboté 2005.05/65
Click on the picture for an enlarged version of this photograph

 

Chromite Burdur

Chromite, Fe+2Cr2O4, a spinel
Sawn slab (10x9 cm) of orbicular chromite, typical for podiform chromite deposits.
Doğanbaba-Yeşilova, Burdur, Turkey
© Photo and coll. P. Perroud

 

   

 

[Mineral Resources and Geofluids]

 


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