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You are here: Home > Library > Trident Volcano: four contiguous stratocones adjacent to Katmai Pass, Alaska Peninsula

citation imageHildreth, Wes, Fierstein, Judy, Lanphere, M. A., and Siems, D. F., 2003, Trident Volcano: four contiguous stratocones adjacent to Katmai Pass, Alaska Peninsula: in Galloway, J. P., (ed.), Studies by the U.S. Geological Survey in Alaska, 2001, U.S. Geological Survey Professional Paper PP 1678, p. 153-180.
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DATA TABLES *Not all tables in a publication may be listed. Not all tables from a publication have data entered in the database.
1093: Chemical analyses of eruptive products from Trident Volcano
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* Wavelength-dispersive X-ray fluorescence analyses of major-element oxides in weight percent, normalized to H2O-free totals of 99.6 weight percent (allowing 0.4 wt% for trace-element oxides and halogens); energy-dispersive X-ray-fluorescence analyses of minor elements (Rb, Sr, Zr) in parts per million. Analyst, D.F. Siems, USGS laboratory, Lakewood CO. Precision and accuracy of these measurements were discussed by Baedecker (1978) and Bacon and Druitt (1988). FeO, total Fe calculated as FeO; LOI, % of sample weight lost on ignition at 900C; original total, volatile-free sum of major-element-oxide contents before normalization, with total Fe content calculated as Fe2O3. Suffix "-i" on sample number denotes magmatic enclave included in a host lava. See figure 3 for sample locations and lithologic units. *

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