155 Analyses

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Analyses of Mazama Andesites

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14. Hypersthene andesite flow. Lake level under Llao Rock. Anal. H. N. Stokes. Diller and Patton, op. cit., p. 94.

15. Hypersthene andesite dike. Devil’s Backbone. Anal. H. N. Stokes. Diller and Patton, ibid.

16. Hypersthene andesite. Rim just south of Watchman. Anal. H. N. Stokes. Diller and Patton, ibid.

17. Hornblende andesite. Dry Butte dome, east of Mount Scott. Anal. W. H. Herdsman.

18. Hypersthene andesite. Palisades, under Roundtop. Anal. H. N. Stokes. Diller and Patton, loc. cit.

 

Analyses of Dacite Lavas and Welded Tuff

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19. Welded dacite tuff (ignimbrite). Wineglass. Anal. H. N. Stokes. Diller and Patton, op. cit., p. 140.

20. Dacite dome, east of Mount Scott. Anal. W. H. Herdsman.

21. Hypersthene dacite. Feeder of Cleetwood flow, at water’s edge. Anal. H. N. Stokes. Diller and Patton, loc. cit.

22. Glassy dacite. South edge of Grouse Hill dome. Anal. W. H. Herdsman.

23. Hypersthene dacite, vitrophyric type. South edge of Llao flow. Anal. H. N. Stokes. Diller and Patton, loc. cit.

246 Tridymite-rich rhyodacite. East wall of Sun Valley, on side of Grayback Ridge. Anal. W. H. Herdsman.

25. Hypersthene dacite dike, probably rich in cristobalite. Below Llao Rock. Anal. H. N. Stokes. Diller and Patton, loc. cit.
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