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Magmatic Deposits and Oxides: A Study of Fe and Cr Gravitational Segregation in Granites

This research delves into the magmatic deposits of iron (Fe) and chromium (Cr) resulting from gravitational segregation in granitic systems within S. China, particularly analyzing the Emeishan plume basalt and its associated 256 Ma Fe ores from the Pan-Xi district and Baiyuan-Ebo. It explores the intricate relationships between various geological formations, including the Ma-An-Shan andesitic porphyry, the unique structures of the Kaapvaal Craton, the Bushveld Igneous Complex, and their implications in understanding chromite-bearing and platinum-bearing intrusions, especially within the context of the Great Dike.

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Magmatic Deposits and Oxides: A Study of Fe and Cr Gravitational Segregation in Granites

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  1. Magmatic deposits—oxides (Fe and Cr) Gravitational segregation

  2. Phanerozoic Granites in S China SCMB CNMB

  3. Emeishan plume basalt—256 Ma

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

  5. Gabbro: cumulated Emeishan basalts

  6. Ma-An-Shan andesitic porphyry--rich in magnetite Ning-Wu Basin Yangtze River

  7. Yangtze River Ning-Wu Basin

  8. The Kaapvaal Creton in S Africa

  9. The Bushveld Igneous Complex (BIC) in South Africa Granite Mafic- ultramafic

  10. The ring structure

  11. The Great Dike

  12. Cross section of The Great Dike Granitic basement Chromite-bearing serpentinite Platium-bearing pyroxenite

  13. Stillwater complex

  14. Muskox intrusions

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