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T 1042 <br /> j Table 11. Chemical analyses and normative coanPosition„ <br /> of. rhyolite lava -flow, Silver Cliff. <br /> Chemical. analyses <br /> -in weight percent <br /> $ .02 1714.56 75.39 75.40 . <br /> Al2.03 13.65 12.0.6' <br /> 0.66 0.38 0.37 ` <br /> FeO. 0.128 0.18 0.27 <br /> r <br /> ft0 0.14 0.15 0.12 <br /> Cats 0,74 0.51 0.29 <br /> Na2O 3,77' 1.84 . 2.02 <br /> K2 4.06 6.81 8.38 <br /> 1�0 5.52 1.13 0.58 <br /> 'UO2' Tr <br /> CO2 .» <br /> P205 • ,� Tr Tr <br /> CIM M M <br /> Mao 0.16 0,14 0.03 <br /> ip to 1 99.99 100.18 100.22 <br /> 14. Obsidian, Lower zone, rbyc3ite lava flow, Silver CU f f. <br /> I.S. Felsi;e, uppPr zone, rhya ll.to lava flora, Silver Cliff, <br /> 16. Fel.si.te3 upper zonot rhyolite Lava fioiq, Round oUntain. <br /> All b+smical A na lY se s by L.. 0'. Eakins,' quoted from, Ctoss <br /> (18961, .p* 324). <br />