典型文献
Ore-forming age and tectonic setting of the Linjiasandaogou gold deposit in the Liaodong Peninsula,northeast China:constraints from geochronology and geochemistry
文献摘要：
The Linjiasandaogou gold deposit is located in the Qingchengzi Orefield,North China Craton,China,and has not attracted many studies.We present geochronolog-ical,whole-rock geochemical,and Sr-Nd-Hf isotopic data to constrain the age and tectonic setting of the mineral-ization.U-Pb dating of zircon from pre-and post-ore dikes indicates the Linjiasandaogou Au deposit formed at ca.227-226 Ma.The granite porphyry(ca.227 Ma)and quartz diorite porphyry(ca.228 Ma),which are slightly older than the mineralization,have(87Sr/86Sr)i-=0.7127-0.7162,εNd(t)=-13.7 to-17.0,and εHf(t=-14.6 to-16.9,and display enrichment in light rare earth elements and large ion lithophile elements and depletion in high field strength elements.Two lamprophyres(226 and 225 Ma),which are slightly younger than the mineraliza-tion,have higher(87Sr/86Sr)i(0.7165-0.7216),negativeεNd(t)(-11.2 to-14.3)and εHf(t)(-15.6 to-18.6)values,and are enriched in light rare earth elements but depleted in high field strength elements(Nb and Ta).The geochemical characteristics of the granitoid and lamprophyres indicate a lower crustal and enriched mantle source,respectively.We infer that the Linjiasandaogou Au deposit formed in a post-collisional tectonic setting,following the collision between the North China,Yangtze craton,and Central Asian Oro-geny in Triassic.
文献关键词：
中图分类号：
作者姓名：
Xiaofeng Yao;Tingjie Yan;Zhicheng Lü;Chenggui Lin;Kuifeng Mi;Shenghui Li;Yang Li;Wange Du
作者机构：
Development and Research Centre,China Geological Survey,Beijing 100037,China;Brigade of Non-Ferrous Geological Bureau of Liaoning Province,Liaoning 118008,China;China University of Geoscience,Beijing 100083,China;Chengdu University of Technology,Chengdu 610059,China
文献出处：
引用格式：
[1]Xiaofeng Yao;Tingjie Yan;Zhicheng Lü;Chenggui Lin;Kuifeng Mi;Shenghui Li;Yang Li;Wange Du-.Ore-forming age and tectonic setting of the Linjiasandaogou gold deposit in the Liaodong Peninsula,northeast China:constraints from geochronology and geochemistry)[J].地球化学学报（英文版）,2022(02):244-266
A类：
Linjiasandaogou,Qingchengzi,Orefield,geochronolog,geny
B类：
forming,age,tectonic,setting,gold,deposit,Liaodong,Peninsula,northeast,China,constraints,from,geochronology,geochemistry,located,North,Craton,has,not,attracted,many,studies,We,present,whole,rock,geochemical,Nd,Hf,isotopic,data,Pb,dating,zircon,post,ore,dikes,indicates,Au,formed,Ma,granite,porphyry,quartz,diorite,which,slightly,older,than,mineralization,have,87Sr,86Sr,display,enrichment,rare,earth,elements,large,lithophile,depletion,strength,Two,lamprophyres,younger,higher,negative,values,enriched,but,depleted,Nb,Ta,characteristics,granitoid,lower,crustal,mantle,source,respectively,infer,that,collisional,following,between,Yangtze,craton,Central,Asian,Oro,Triassic
AB值：
0.490984
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