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MAGMATISM IN THE EASTERN ALEUTIAN ARC: TEMPORAL CHARACTERISTIC OF IGNEOUS ACTIVITY ON AKUTAN ISLAND
citation imageRomick, J. D., Perfit, M. R., Swanson, S. E., and Shuster, R. D., 1990, Magmatism in the eastern Aleutian Arc: temporal characteristic of igneous activity on Akutan Island: Contributions to Mineralogy and Petrology, v. 104, n. 6, p. 700-721.

DATA TABLES *Not all tables in a publication may be listed. Not all tables from a publication have data entered in the database.
151: K-Ar dates for Akutan lavas
* a Date represents minimum age. b Samples analyzed by R. Armstrong, University of British Columbia, Vancouver, BC. All others analyzed by J. Blum and D. turner at the University of Alaska, Fairbanks. *
152: Representative plagioclase analyses for Akutan lavas

153: Selected clinopyroxene analyses from Akutan lavas

154: Representative orthopyroxene analyses from Akutan lavas

155: Representative olivine analyses for Akutan lavas

156: Representative oxide analyses for Akutan lavas
* nd, not determined. A Fe2O3 calculated based upon ideal stoichiometry *
157: Selected analyses of amphibole from Akutan lavas

158: Representative major element analyses of Akutan lavas
View table data :: Download table data (.csv)
* (a) whole rock analysis by X-ray fluorescence at AK Division of Geological and Geophysical Surveys lab, Fairbanks, AK. All others by electron microprobe. *
159: Minor and trace element analyses of Akutan lavas
View table data :: Download table data (.csv)

160: Sr and Pb isotopic data for lavas from Akutan Island

161: Major and trace element crystal fractionation models for Akutan lavas
* %Diff is the percent difference between observed and calculated values. A successful model was considered to be one where the calculated values were within 10% of the observed values. See Table 9 for observed values. *If the major element mass balance calculation are ignored, all of the trace elements in AK81-35 can be reproduced by 5% fractionation of AK81-28. Given that AK81-35 erupted before AK81-28, open system behavior can explain the discrepancy between the calculated and observed trace element concentrations. Distribution coefficients were taken from Schnetzler and Philpotts (1970) and Philpotts and Schnetzler (1970). *

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