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Cholerny Spammer
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 Posted: Wed 17:34, 16 Feb 2011 Post subject: tory burch shoes Alex Hill antimony deposit in Hub |
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Alex Hill antimony deposit in Hubei lead isotope composition of the ore sources
ateUniversityofChineseAcademyofSc / ences, Be6qng100049, China) Abstract: Abstract: TheXujiashanantimonydepositislocatedinTongshanCounty, HubeiProvince,[link widoczny dla zalogowanych], anditsorebod-iesoccurredinmarinecarbonatesoftheUpperSinianDoushantuoandDengyingformations. Leadisotopiccomposi-tionofstibnitefromthisdeposithaeensystematicallyanalyzedinthispaper. ItisshownthatisotoperatiosinoreleadcanbeclassifiedastWOgroups (GroupAandGroupB),[link widoczny dla zalogowanych], GroupAischaracterizedbyhigherradiogenicleadwith2o6Pb/2o4Pb = 18.874to19.288, 2o7Pb/204Pb = 15.708t015.805,[link widoczny dla zalogowanych], andPb/2o4Pb = 38.642t039.001. WhereasGroupBshows1ower1eadisotoperatios (Pb / Pb = 17.882to18.171. New Pb / Pb = 15.555to15.686, andPb / Pb = 37.950to38.340). Andtheirrelevantparametersarealsodistinct, forexample,[link widoczny dla zalogowanych], thesingle-stagemodelagesofGroupAarealmostnegativeorverysmallpositiveValues, whilethoseofGroupBrangefrom636to392Ma, tlIanaverageof495 ± 65Ma. Inaddition. thereareobviouslypositivelinearcorrelationsa-mongleadisotopecompositionsandsomeotherrelatedparameters (△ yVS, △ VlVS). Basedondiagramsofleadtectonicpatternand a geneticclassificationforores, theleadofGroupAstibniteWasmainlyderivedfromthehostrocks - Sinianmarinecarbonates, andtheleadofGroupBonewaspredominatelyderivedfromtheunderly-ingbasement - low-grademetamorphicclasticrocksoftheMesoproterozoicLengjiaxiGroup. Furthermore. itiscon-cludedthattheXujiashanantimonydepositisnotofsedimentary-reworkedoriginaspreviouslyconsidered,[link widoczny dla zalogowanych], itsOre-formingmaterialswerepartlyderivedfromthebasementrocks. Keywords: stibnite; leadisotope; leadsource; Xujiashanantimonydeposit; HubeiProvince
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