《Table 2 Major element data, trace element data and characteristic parameters of series I and II roc

《Table 2 Major element data, trace element data and characteristic parameters of series I and II roc   提示:宽带有限、当前游客访问压缩模式
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《"Isotope Geochronologic and Geochemical Constraints on the Magmatic Associations of the Collisional Orogenic Zone in the West Kunlun Orogen, China"》


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Note:The data of*D3156/1 are from the 1:250000 regional geologic maps of Tatulugou and Skardu(Ji Wenhua et al.,2004);LOI stands for loss on ignition;A/CNK=Al2O3/(Ca O+Na2O+K2O)molecular;and“–”represents‘very little’.δEu=ω(Eu)N/[1/2(ω (Sm)N

The series I granite samples exhibit variable Si O2contents;high Na,Mg O,Al2O3,and Ca O contents;low K,Ti O2,Mn O,and P2O5 contents;and Mg#values of 0.33 to0.65(with an average of 0.44)(Table 2) .The plots of A/NK vs.A/CNK,TAS,and K2O vs.Si O2 indicate I-to S-type,peraluminous,and calc-alkaline characteristics(Figs.4–6).The Al2O3,Ca O,Ti O2,Mg O,Mn O,P2O5 andTFe2O3 contents of the samples decrease slightly with increasing Si O2 content and increase with increasing total alkaloid(K2O+Na2O)content in the Harker diagram(Fig.7).Therefore,the gabbro,quartz diorite and granodiorite are related to the same parent magma undergoing magmatic evolution.