Figure F6. Plagioclase compositions measured in volcanic and intrusive rocks from drilled sites. 1 = microliths from rhyolitic glass, 2 = microliths in andesite, 3 = microliths in basaltic andesite, 4 = phenocrysts in andesite, 5 = phenocrysts in basalt and basaltic andesite, cross = phenocrysts in high-K andesite, 6 = microgabbro, 7 = K-feldspar in rhyolitic glass, 8 = alkali-feldspars in high-K andesite, Or = orthoclase, Ab = albite, An = anorthite.

Figure F6. Plagioclase compositions measured in volcanic and intrusive rocks from drilled sites. 1 = microliths from rhyolitic glass, 2 = microliths in andesite, 3 = microliths in basaltic andesite, 4 = phenocrysts in andesite, 5 = phenocrysts in basalt and basaltic andesite, cross = phenocrysts in high-K andesite, 6 = microgabbro, 7 = K-feldspar in rhyolitic glass, 8 = alkali-feldspars in high-K andesite, Or = orthoclase, Ab = albite, An = anorthite.