Platinum-group element (PGE) deposits and occurrences: Mineralization styles, genetic concepts, and exploration criteria

WD Maier - Journal of African Earth Sciences, 2005‏ - Elsevier
PGE mineralization has been identified in various rock types and at various stratigraphic
levels in layered intrusions of any age, size and magmatic lineage, but the most important …

Porphyry deposits: Characteristics and origin of hypogene features

E Seedorff, JH Dilles, JM Proffett, MT Einaudi… - 2005‏ - pubs.geoscienceworld.org
Porphyry deposits arguably represent the most economically important class of nonferrous
metallic mineral resources. These magmatic-hydrothermal deposits are characterized by …

[كتاب][B] Introduction to ore-forming processes

L Robb - 2020‏ - books.google.com
A comprehensive account of ore-forming processes, revised and updated The revised
second edition of Introduction to Ore-Forming Processes offers a guide to the multiplicity of …

The Bushveld Complex, South Africa: formation of platinum–palladium, chrome-and vanadium-rich layers via hydrodynamic sorting of a mobilized cumulate slurry in a …

WD Maier, SJ Barnes, DI Groves - Mineralium Deposita, 2013‏ - Springer
Platinum-group element (PGE) deposits in the Bushveld Complex and other layered
intrusions form when large, incompletely solidified magma chambers undergo central …

[PDF][PDF] The fractionation of Ni, Cu and the noble metals in silicate and sulphide liquids

SJ Barnes, WD Maier - Short Course Notes-Geological Association of …, 1999‏ - Citeseer
Deposits containing Ni, Cu and Pt-group elements (PGE) are normally found in association
with mafic and ultramafic rocks. Naldrett (1981) has pointed out that deposits of this group …

Mantle-derived magmas and magmatic Ni-Cu-(PGE) deposits

NT Arndt, CM Lesher, GK Czamanske - 2005‏ - pubs.geoscienceworld.org
Abstract Magmatic Fe-Ni-Cu±platinum-group element (PGE) sulfide deposits form when
mantle-derived mafic and ultramafic magmas become saturated in sulfide and segregate …

Exploration for magmatic Ni-Cu-PGE sulphide deposits: A review of recent advances in the use of geochemical tools, and their application to some South African ores

WD Maier, SJ Barnes… - South African Journal of …, 1998‏ - constellation.uqac.ca
Most major magmatic Cu-Ni-PGE sulphide deposits are thought to have formed by
segregation of an immiscible sulphide melt from a silicate host magma, in response to …

The use of mantle normalization and metal ratios in discriminating between the effects of partial melting, crystal fractionation and sulphide segregation on platinum …

SJ Barnes, R Boyd, A Korneliussen, LP Nilsson… - Geo-platinum 87, 1988‏ - Springer
The distribution of noble metals, Ni and Cu in mafic and ultramafic rocks is thought to be
controlled by sulphides, chromite, olivine and platinum-group minerals (PGM). One method …

The fractionation of platinum-group elements in magmatic systems, with the suggestion of a novel causal mechanism

M Tredoux, G Davies, I McDonald… - South African Journal of …, 1995‏ - journals.co.za
Compatible behaviour has been considered as a major influence on the behaviour of the
platinum-group elements (PGE) in magmatic systems. The authors believe that current …

Concentration of platinum-group elements by magmatic fluids in layered intrusions

AE Boudreau, IS McCallum - Economic Geology, 1992‏ - pubs.geoscienceworld.org
Evidence leading to a model which supports the formation of Pt-Pd reefs in a layered
intrusion by the action of magmatic fluids is presented, as well as some of the constraints …