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Ultramafic Rocks in the Pre-Mesozoic Basement of the Central and External Western Alps
Ultramafic rocks, usually accompanied by metagabbroic and or metabasaltic mafic rocks typically occur as small lenses of several to some tens of...
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Regional Geology of New Caledonia
The main island of New Caledonia is elongated in a northwest direction (bearing 305°) and is some 400 km long and only 50 km wide, between latitudes...
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The behaviour of the upper mantle sulfide component during the incipient alteration of “Alpine”-type peridotites as illustrated by the Beni Bousera (northern Morocco) and Ronda (southern Spain) ultramafic bodies
A volumetrically minor Cu−Fe−Ni−S component derived from the uppermost mantle is found within the Beni Bousera (northern Morocco) and Ronda (southern...
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Fuchsite-aluminium silicate rocks in archaean greenstone belts: Are they metamorphosed alunite deposits?
For the origin of fuchsite- and alusite-corundum rocks occurring as lenses within ultramafic schists at O'Briens, Zimbabwe, a model is presented,...
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The opaque minerals of the ultramafic rocks of New Caledonia
The ultramafic rocks of New Caledonia contain a diversity of disseminated ore minerals in non-economic amounts. Eighteen opaque minerals are...
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Neue Ergebnisse zur Evolution der prÄkambrischen Kruste im südlichen Afrika
The structural history of the Precambrian shield areas points to an early crustal evolution which differed markedly from the development in later...
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The Chlorite Series of Flagstaff Hill Area, California: A Preliminary Investigation
The results of X-ray diffraction, DTA, i.r. spectroscopy, and chemical tests are presented for some chlorites typical of the Flagstaff Hill area. The...