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Magmatic Ore Deposits in Layered Intrusions?descriptive Model for Reef-Type Pge and Contact-Type Cu-Ni-Pge Deposits

Autor U. S. Department of the Interior
en Limba Engleză Paperback
Layered, ultramafic to mafic intrusions are uncommon in the geologic record, but host magmatic ore deposits containing most of the world's economic concentrations of platinum-group elements (PGE) (figs. 1 and 2). These deposits are mined primarily for their platinum, palladium, and rhodium contents (table 1). Magmatic ore deposits are derived from accumulations of crystals of metallic oxides, or immiscible sulfide, or oxide liquids that formed during the cooling and crystallization of magma, typically with mafic to ultramafic compositions.
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Specificații

ISBN-13: 9781495906534
ISBN-10: 1495906531
Pagini: 56
Dimensiuni: 216 x 280 x 3 mm
Greutate: 0.15 kg
Editura: CREATESPACE