Sample: FC5a


Sample ID: FC5a [1]
Station ID: Falls_Creek
AT Num:
Volcano:
Possible source:
Eruption:
Collector: Unknown, Unknown
Date sampled:
Sample type 1: Tephra Fall
Color:
Final unit:
Text Description: Sampled from a 150-cm thick, waterlaid, fine-grained tephra layer in siltstone and fine-grained sandstone. The sample is directly overlain by a 3-cm thick coal but may be contaminated by detrital sediments. About 40-50% of elongated glass fragments from stretched pumice shards. Some glass fragments are brown in color. About 5-7% hornblende, plagioclase, biotite, and quartz combined. Trace zircon and apatite. A few altered muscovite grains.
Sample Location:

References Cited

[1] Tephra layers as correlation tools of Neogene coal-bearing strata from the Kenai Lowland, Alaska, 1995

Reinink-Smith, L. M., 1995, Tephra layers as correlation tools of Neogene coal-bearing strata from the Kenai Lowland, Alaska: Geological Society of America Bulletin, v. 107, n. 3, p. 340-353.