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Highly Siderophile Elements (Re, Au and PGE) in Porphyry Deposits and Their Mantle Origins
Author(s) -
Sinclair W. David,
Jonasson Ian R.
Publication year - 2014
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12374_56
Subject(s) - geological survey , citation , library science , history , geology , computer science , paleontology
Re, Au and platinum-group elements (PGE) have many properties in common, in particular a strong affinity for metallic or sulphide phases, and in this regard they are commonly referred to as highly siderophile elements (HSE). During metal-silicate segregation these elements will be almost entirely stripped from the silicate portion of a melt and partitioned into metallic, sulfide-rich segregations. Such segregations, represented by base metal sulfides in upper mantle rocks, contain substantial concentrations of Re, Au and PGE, along with Cu and other metals, and are a potential source of these metals in Au-rich porphyry deposits.