Gravitational segregation

Magmatic deposits—oxides (Fe and Cr)

Phanerozoic Granites in S China

SCMB

CNMB

Emeishan plume basalt—256 Ma

Fe ores: Pan-Xi district (1) and Baiyuan-Ebo (18)

Gabbro: cumulated Emeishan basalts

Ma-An-Shan andesitic porphyry--rich in magnetite

Ning-WuBasin

YangtzeRiver

Ning-Wu Basin

Yangtze River

The Kaapvaal Creton in S Africa

The Bushveld Igneous Complex (BIC) in South Africa

Granite

Mafic-ultramafic

Theringstructure

The Great Dike

Cross section of The Great Dike

Chromite-bearingserpentinite

Graniticbasement

Platium-bearingpyroxenite

Stillwater complex

Muskox intrusions