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Permanent link (DOI): https://doi.org/10.7939/R3QV3CC2K

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The paragenesis and geochemistry of the Bellekeno Ag-Pb-Zn vein, Keno Hill district, Yukon, Canada Open Access

Descriptions

Other title
Subject/Keyword
Vein
Keno Hill
Silver
Lead
Siderite
Intrusion related gold
Ag-Pb-Zn
Zinc
Fluid inclusion
Sphalerite
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Hantelmann, Jos J.
Supervisor and department
Gleeson, Sarah (Earth and Atmospheric Sciences)
Richards, Jeremy (Earth and Atmospheric Sciences)
Examining committee member and department
Gleeson, Sarah (Earth and Atmospheric Sciences)
Richards, Jeremy (Earth and Atmospheric Sciences)
Creaser, Robert (Earth and Atmospheric Sciences)
Department
Department of Earth and Atmospheric Sciences
Specialization

Date accepted
2013-09-26T14:03:41Z
Graduation date
2013-11
Degree
Master of Science
Degree level
Master's
Abstract
The Keno Hill district Ag-Pb-Zn deposit occurs within the Tombstone-Tungsten Belt, Yukon. Vein mineralization, dominated by siderite, sphalerite, and galena, is spatially associated with, but paragenetically later than, intrusion-related gold mineralization. A direct genetic link between the Keno Hill mineralization and the Roop Lakes stock cannot be demonstrated; however the age of Keno Hill mineralization and spatial geochemical variations of mineral chemistry suggests that some genetic or temporal relationship exists. Twelve distinct mineral assemblages record 5 different fluid compositions defining a cooling trend from >300˚C to <160˚C (Th). Fluids evolved and variably mixed; decreasing temperature and dilution appear to be the principal controls on silver and base-metal mineralization. Moderately saline fluids (<20 wt % NaCl equiv.) could be derived from either magmatic or formation waters, with some of the dissolved components derived from the surrounding country rock. A late stage, lower temperature fluid is of meteoric origin.
Language
English
DOI
doi:10.7939/R3QV3CC2K
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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