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dc.date.accessioned2019-03-19T11:02:20Z
dc.date.created2019-01-17T21:44:13Z
dc.date.issued2018
dc.identifier.citationKarimi Saeidabadi, Zahra Karimpour, Mohammad Hassan Malekzadeh Shafaroudi, Azadeh Rahimi, Behnam Corfu, Fernando . Origin of the Kaviro lead deposit in the Neyganan area, Lut Block, Eastern Iran: Constraints from geology, fluid inclusions, and isotope geochemistry. Journal of Geochemical Exploration. 2018, 192, 85-102
dc.identifier.urihttp://hdl.handle.net/10852/67311
dc.description.abstractThe Kaviro lead deposit is located in the Lut Block, which is an important metallogenic province in Eastern Iran (lat 34°22'N, long 57°18'E). The deposit includes ore-bearing veins and veinlets emplaced in folds and hosted by middle Jurassic slate units. The ore-forming procedure can be segregated into three stages: pre-mineralization stage quartz-pyrite, main stage quartz-dolomitepyrite-galena, and late stage calcite and pyrite. Hydrothermal alteration minerals are composed of dolomite, quartz, and calcite. Microscopic surveys show that the vein includes galena with minor amounts of pyrite as hypogene minerals. Two types of fluid inclusions are distinguished in quartz and dolomite veins. Microthermometric investigations reveal homogenization temperatures of 180-250 °C and salinities from 5 to 12.5 wt.% NaCl equivalents. The oreforming fluids of the Kaviro deposit are medium-to-low in terms of temperature and salinity. The δ 34S values for the ore fluid are estimated to be between +0.94‰ and +3.27‰. The isotopic compositions of sulfur suggest that the ore-forming aqueous solutions are derived from a nonmagmatic source, probably from leaching of metamorphic rocks. The 206Pb/204Pb, 207Pb/204Pb, and 208Pb/204Pb ratios of the samples span narrow ranges from 18.514-18.569, 15.668-15.715, and 38.803-38.950, respectively. The 207Pb/204Pb and 208Pb/204Pb ratios plot above the evolution curves and clearly indicate a crustal source. The 207Pb/204Pb vs. 206Pb/204Pb data suggest a homogen source for Pb. Most of the galena samples in the CIM Pb-Zn deposits show high 207Pb/204Pb ratios, indicating that Pb is mainly derived from continental crust or pelagic sediment. The age of the mineralization is after the middle Jurassic. The Kaviro deposit is a metamorphic-related vein deposit, and fluid mixing is the important mechanism for its deposition.en_US
dc.languageEN
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.titleOrigin of the Kaviro lead deposit in the Neyganan area, Lut Block, Eastern Iran: Constraints from geology, fluid inclusions, and isotope geochemistryen_US
dc.typeJournal articleen_US
dc.creator.authorKarimi Saeidabadi, Zahra
dc.creator.authorKarimpour, Mohammad Hassan
dc.creator.authorMalekzadeh Shafaroudi, Azadeh
dc.creator.authorRahimi, Behnam
dc.creator.authorCorfu, Fernando
dc.date.embargoenddate2020-06-09
cristin.unitcode185,15,22,0
cristin.unitnameInstitutt for geofag
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1
dc.identifier.cristin1659801
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal of Geochemical Exploration&rft.volume=192&rft.spage=85&rft.date=2018
dc.identifier.jtitleJournal of Geochemical Exploration
dc.identifier.volume192
dc.identifier.startpage85
dc.identifier.endpage102
dc.identifier.doihttp://dx.doi.org/10.1016/j.gexplo.2018.06.006
dc.identifier.urnURN:NBN:no-70506
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn0375-6742
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/67311/1/Zahra%2BKarimi%2BSaeidabadi_2018_accepted_JGE.pdf
dc.type.versionAcceptedVersion
dc.relation.projectNFR/223272


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