An overview of chalcophile element contents of pyrrhotite, pentlandite, chalcopyrite, and pyrite from magmatic Ni-Cu-PGE sulfide deposits
We have compiled the trace element concentrations in pyrrhotite, pentlandite, chalcopyrite,
and pyrite from magmatic Ni-Cu-PGE ore deposits with the aim of understanding their …
and pyrite from magmatic Ni-Cu-PGE ore deposits with the aim of understanding their …
Chalcophile and siderophile elements in mantle rocks: Trace elements controlled by trace minerals
BACKGROUND Rocks from the Earth's mantle occur in a wide range of geologic settings (1)
as peridotite massifs, now referred to as orogenic peridotites;(2) as spinel-(rarely garnet) …
as peridotite massifs, now referred to as orogenic peridotites;(2) as spinel-(rarely garnet) …
Partitioning of platinum-group elements and Au between sulfide liquid and basalt and the origins of mantle-crust fractionation of the chalcophile elements
The partitioning of platinum-group elements (PGE; Os, Ir, Ru, Rh, Pt, and Pd) and Au
between sulfide melt and silicate melt (ie, D PGE sul) exerts a critical control on the PGE …
between sulfide melt and silicate melt (ie, D PGE sul) exerts a critical control on the PGE …
Highly siderophile element composition of the Earth's primitive upper mantle: constraints from new data on peridotite massifs and xenoliths
Osmium, Ru, Ir, Pt, Pd and Re abundances and 187Os/188Os data on peridotites were
determined using improved analytical techniques in order to precisely constrain the highly …
determined using improved analytical techniques in order to precisely constrain the highly …
Non-chondritic distribution of the highly siderophile elements in mantle sulphides
The abundances of highly siderophile (iron-loving) elements (HSEs) in the Earth's mantle
provide important constraints on models of the Earth's early evolution. It has long been …
provide important constraints on models of the Earth's early evolution. It has long been …
A unified model for gold mineralisation in accretionary orogens and implications for regional-scale exploration targeting methods
Accretionary orogens are the sites of long-lived convergent margin tectonics, both
compressional and extensional. They are also the hosts to the majority of the world's …
compressional and extensional. They are also the hosts to the majority of the world's …
Starch grains reveal early root crop horticulture in the Panamanian tropical forest
DR Piperno, AJ Ranere, I Holst, P Hansell - Nature, 2000 - nature.com
Native American populations are known to have cultivated a large number of plants and
domesticated them for their starch-rich underground organs. Suggestions, that the likely …
domesticated them for their starch-rich underground organs. Suggestions, that the likely …
Highly siderophile elements in the Earth, Moon and Mars: update and implications for planetary accretion and differentiation
RJ Walker - Geochemistry, 2009 - Elsevier
The highly siderophile elements (HSE) pose a challenge for planetary geochemistry. They
are normally strongly partitioned into metal relative to silicate. Consequently, planetary core …
are normally strongly partitioned into metal relative to silicate. Consequently, planetary core …
Re–Os isotope systematics and platinum group element fractionation during mantle melt extraction: a study of massif and xenolith peridotite suites
Re–Os isotope and platinum group elements (PGE) systematics are presented for peridotite
xenoliths from N. Lesotho (on-craton), S. Namibia (circum-cratonic), the Vitim volcanic field …
xenoliths from N. Lesotho (on-craton), S. Namibia (circum-cratonic), the Vitim volcanic field …
An experimental study of the sulfur content in basaltic melts saturated with immiscible sulfide or sulfate liquids at 1300 C and 1· 0 GPa
The sulfur content in basaltic melts coexisting with either sulfide or sulfate melts was
determined experimentally. The experimental conditions were in the range of 1300–1355° C …
determined experimentally. The experimental conditions were in the range of 1300–1355° C …