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CORRELATION AND PETROLOGICAL INTERPRETATION OF ABYSSAL AND TERRESTRIAL TEPHRA LAYERS (NOVARUPTA, MAZAMA, ST. HELENS, WASHINGTON)
Federman, A. N., 1984, Correlation and petrological interpretation of abyssal and terrestrial tephra layers (Novarupta, Mazama, St. Helens, Washington): Oregon State University Ph.D. dissertation, 241 p.

SAMPLES
Brown_Bear_Core_110-20
Federman_1984_1_sample_1
Federman_1984_1_sample_2
Federman_1984_1_sample_3
Federman_1984_1_sample_4
Federman_1984_1_sample_5
Federman_1984_1_sample_6
Federman_1984_1_sample_7
Federman_1984_1_sample_8
Federman_1984_1_sample_9
Federman_1984_1_samples_1-3
Federman_1984_1_samples_4-9
Federman_1984_1_samples_4-9_transitional
Federman_1984_1_samples_4-9_intermediate
Brown_Bear_Core_110-20_high_silica
Brown_Bear_Core_110-20_transitional
Brown_Bear_Core_110-20_intermediate
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