Re-Os SULFIDE (BORNITE, CHALCOPYRITE, AND PYRITE) SYSTEMATICS OF THE CARBONATE-HOSTED COPPER DEPOSITS AT RUBY CREEK, SOUTHERN BROOKS RANGE, ALASKA

Selby, David; Kelley, Karen D.; Hitzman, Murray W.; Zieg, Jerry

doi:10.2113/gsecongeo.104.3.437

Cited by 108 publications

(61 citation statements)

References 28 publications

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“…This indicates an heterogeneous distribution of these elements in the sulfide matrix, what has been called the "nugget effect" Mathur et al, 2000;Barra et al, 2003;Morelli et al, 2007;Selby et al, 2009). Hence, an isochron can be constructed using a suite of co-genetic samples or by several analyses from a single sample, therefore both the age and initial isotopic composition (and thus the source of Os) can be determined directly on major ore-forming minerals.…”

Section: Distribution and Behavior Of Re And Osmentioning

confidence: 99%

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Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach

Barra

Reich

Selby

et al. 2017

Ore Geology Reviews

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'Unraveling the origin of the Andean IOCG clan : a Re-Os isotope approach.', Ore geology reviews., 81 (Part 1). pp. 62-78. Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E D M A N U S C R I P T Chilean IOCGs is the result of different events with metals derived from diverse sources i.e., the magmatic-hydrothermal system and basement/host rocks. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPTRhenium and Os concentrations for the various studied deposits vary over a wide range of values at the ppb and ppt level, respectively, with many sulfides and magnetite bearing appreciable no common Os. The Re and Os contents in sulfides (pyrite, IOCGs in China and Australia argue for the involvement of a much more radiogenic crustal source possibly related to non-magmatic oxidized saline brines that leached basement rocks. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPTWe conclude that Andean IOCG (and IOA) deposits in northern Chile were formed mainly by magmatic-hydrothermal processes related to the formation and emplacement of plutonic rocks with moderate contribution from leaching of basement and/or volcanic host rocks. Surface or basin-derived brines as well as sediments appear to play only a minor role in the formation of the Chilean IOCG clan.

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Section: Distribution and Behavior Of Re And Osmentioning

confidence: 99%

“…The measured Os in all samples is mostly radiogenic 187 Os ( (Selby et al, 2009;Lawley et al, 2013). Only model ages for samples with measureable Os and correctly spiked are reported in Table 2.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach

Barra

Reich

Selby

et al. 2017

Ore Geology Reviews

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“…The methodology essentially followed that of Selby et al (2009). Approximately 20-40 mg of each sulphide separate and a known amount of tracer solution were digested together in a carius tube for 48 hrs at a temperature of 220°C in 3 ml of 11 N HCl and 15.5N HNO 3 .…”

Section: Re-os Analysis Was Performed In the Laboratory For Sulfide Amentioning

confidence: 99%

A multistage origin for Kupferschiefer mineralization

Alderton

Selby

Kucha

et al. 2016

Ore Geology Reviews

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Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-pro t purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. 'event' for introducing additional metals is as yet unknown.

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“…Besides molybdenite [27][28][29][30][31], sulfides (e.g. pyrite) with low Re and Os concentrations also has been used successfully to date ages of ore deposits using the rhenium-osmium (Re-Os) method [32][33][34][35][36]. The Xinqiao deposit is one of the most representative stratiform sulfide deposits in the MLYRB.…”

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confidence: 99%

Re-Os isotope dating of pyrite from the footwall mineralization zone of the Xinqiao deposit, Tongling, Anhui Province: Geochronological evidence for submarine exhalative sedimentation

Guo

Jiang

et al. 2011

Chin. Sci. Bull.

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The Xinqiao deposit is located in the Tongling area, Anhui Province. This deposit is dominantly composed of stratiform sulfide orebodies, which are restricted to the transitional zone from clastic rocks to carbonates at the base of the Late Carboniferous Huanglong Formation. There are discordant veinlets or networks of mineralization in the footwall rocks below the stratiform sulfide orebodies. The underlying discordant mineralization zones coexist with conformable stratiform sulfide orebodies, which are considered to be the most representative features of massive sulfide deposits formed by submarine exhalative sedimentation. This study reports a pyrite 187 Re-187 Os isotopic age of 319±13 Ma (MSWD=16) for the footwall mineralization zone. This isochron age is consistent with the interval of strata hosting the conformable stratiform sulfide orebody, and provides direct geochronological evidence for Carboniferous exhalative sedimentary mineralization.

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Re-Os SULFIDE (BORNITE, CHALCOPYRITE, AND PYRITE) SYSTEMATICS OF THE CARBONATE-HOSTED COPPER DEPOSITS AT RUBY CREEK, SOUTHERN BROOKS RANGE, ALASKA

Cited by 108 publications

References 28 publications

Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach

Unraveling the origin of the Andean IOCG clan: A Re-Os isotope approach

A multistage origin for Kupferschiefer mineralization

Re-Os isotope dating of pyrite from the footwall mineralization zone of the Xinqiao deposit, Tongling, Anhui Province: Geochronological evidence for submarine exhalative sedimentation

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