《Table 1 Major oxides (wt%) and trace elements (ppm) of the studied lower volcanic unit》

  提示：宽带有限、当前游客访问压缩模式

本系列图表出处文件名：随高清版一同展现

《"Geochemical Constraints of the Ediacaran Volcano-Sedimentary Succession of the Sa'al Metamorphic Complex at Wadi Zaghra, South Sinai, Egypt"》

1. 获取 高清版本忘记账户？点击这里登录

1. 下载图表忘记账户？点击这里登录

*Rock name according to TAS classification Suite Indexσ=（Na2O+K2O）2/SiO2-43 （Rittmann，1962）

Feldspars:The chemical composition of the analyzed feldspars is given in Tables 3–8 and in Fig.4a.The plagioclase of the metabasaltic andesite has an average composition of Ab48 An50 Or2，i.e.andesine-labradorite whereas the plagioclase from the metadacite has an average composition of Ab75 An24 Or1，i.e.oligoclase.The co-existing alkali feldspar with the latter plagioclase has an average composition of Ab13 An1 Or86，.i.e.sanidine The feldspars from the dacite of the upper unit of the Zaghra succession have the following average composition:plagioclase，Ab84 An14 Or2（oligoclase），and the alkali feldspar，Ab49 An6 Or45（sanidine）.This means that the plagioclase from the dacite has more sodium and less calcium than that of the metadacite，and that the alkali feldspar of the dacite has more sodium and less potassium than that of the metadacite.The plagioclase feldspars from the rhyolite have an average composition of Ab98 An1 Or1（i.e.albite），whereas the alkali feldspars have an average composition of Ab4 An0.1 Or96（i.e orthoclase）.