Alaska Volcano Observatory - Some Aleutian andesites: their nature and source

SOME ALEUTIAN ANDESITES: THEIR NATURE AND SOURCE

Marsh, B. D., 1976, Some Aleutian andesites: their nature and source: Journal of Geology, v. 84, n. 1, p. 27-45.

DATA TABLES *Not all tables in a publication may be listed. Not all tables from a publication have data entered in the database.

69: Volume modal analyses of selected samples

* *Modes represent microphenocryst population *

70: Whole rock analyses

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* Note - all analyses by the U.S> Geological Survey except those enumerated below: Coats (1952), cols 1 and 14; Simons and Mathewson (1955), col. 12; analysis by O.V. Knorring, col 16; average from Engle et al (1965), col. 17; average of 11 analyses from Smith and Carmichael (1969) and Bacon and Carmichael (1973), col. 18. Abbreviations: W = <2 ppm, X = < 20 ppm. *

71: Olivine analyses

* Note - SiO2 determined by stoichiometry with Ca, Fe, Mg, Ca, and Ni; X = xenocryst; C = phenocryst core; R = phenocryst rim, m = groundmass *

72: Orthopyroxene analyses

* Note - SiO2 determined by stoichiometry with Ca, Fe, Mg, and Mn; C = phenocryst core; R = phenocryst rim; m = groundmass *

73: Clinopyroxene analyses

* Note - C = phenocryst core; R = phenocryst rim; m = groundmass *

74: Titanomagnetite analyses

SAMPLES

AMK-6
AD-14
AD-37
AD-36
AD-39
AD-51
AD-61
GS-4
AD-44
AD-49
CB-12
AD-72
AD-17
CB-7

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