Alaska Volcano Observatory - The Mount Edgecumbe tephra deposits: a marker horizon in southeastern Alaska near the Pleistocene-Holocene boundary

THE MOUNT EDGECUMBE TEPHRA DEPOSITS: A MARKER HORIZON IN SOUTHEASTERN ALASKA NEAR THE PLEISTOCENE-HOLOCENE BOUNDARY

Riehle, J. R., Mann, D. H., Peteet, D. M., Engstrom, D. R., Brew, D. A., and Meyer, C. E., 1992, The Mount Edgecumbe tephra deposits: a marker horizon in southeastern Alaska near the Pleistocene-Holocene boundary: Quaternary Research, v. 37, n. 2, p. 183-202.

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

1273: Compositions of glass separates from representative near-vent dacitic and rhyolitic pyroclasts of the Mount Edgecumbe volcanic field, Alaska.

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* One standard deviation as a percentage of the reported value is in parentheses after each analysis; no values are given for Mn which occurs in in abundances near the limit of detectability. Site localities are shown on figures 1 and 2 *

1283: Glass compositions and petrographic descriptions of representative distal tephra deposits

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* glass analyses by 9-channel microprobe; operational details same as in heading for table 1. The petrographic descriptions should be useful for preliminary classification of tephra samples collected in the future *

SAMPLES

82ARJ112B
82ARJ136y
2-C
81Rj46l
81Rj46d
85Rj3a1
85Rj3a2
85Rj3c
81ARJ075A
4-B
1-C
10-A2
4-D
81ARJ075a'

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