Gold and tin mineralisation in the ultramafic-hosted Cheoeum vent field, Central Indian Ridge

The Cheoeum vent field (CVF) is the first example of an inactive ultramafic-hosted seafloor massive sulphide (SMS) deposit identified in the middle part of the Central Indian Ridge. Here, we report on the detailed mineralogy and geochemistry of ultramafic-hosted sulphide sample atop a chimney, toget...

Full description

Saved in:
Bibliographic Details
Published in:Mineralium deposita 2021-06, Vol.56 (5), p.885-906
Main Authors: Choi, Sun Ki, Pak, Sang Joon, Kim, Jonguk, Park, Jung-Woo, Son, Seung-Kyu
Format: Article
Language:English
Subjects:
Chalcopyrite
Chemical analysis
Chimneys
Covellite
Earth and Environmental Science
Earth Sciences
Fineness
Fluids
Geochemistry
Geology
Gold
High temperature
Hydrothermal systems
Iron
Low temperature
Mid-ocean ridges
Mineral assemblages
Mineral inclusions
Mineral Resources
Mineralization
Mineralogy
Ocean floor
Oxidoreductions
Pyrite
Pyrrhotite
Redox potential
Ridges
Saturation
Seawater
Silica
Silicon dioxide
Silver
Solid solutions
Sphalerite
Sulfides
Sulphides
Tin
Water analysis
Zincblende
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The Cheoeum vent field (CVF) is the first example of an inactive ultramafic-hosted seafloor massive sulphide (SMS) deposit identified in the middle part of the Central Indian Ridge. Here, we report on the detailed mineralogy and geochemistry of ultramafic-hosted sulphide sample atop a chimney, together with a few small fragments. Hydrothermal chimneys are characterised by high concentrations of Au (up to 17.8 ppm) and Sn (up to 1720 ppm). The sulphide mineralisation in the CVF shows (1) early precipitation of anhedral sphalerite and pyrite–marcasite aggregates under relatively low-temperature (
ISSN:0026-4598
1432-1866
DOI:10.1007/s00126-020-01012-5