Sample: CC2


Sample ID: CC2 [1]
Station ID: Corea_Creek
AT Num:
Volcano:
Possible source:
Eruption:
Collector: Unknown, Unknown
Date sampled:
Sample type 1: Tephra Fall
Color: dark brown
Final unit:
Text Description: CC2 is dark brown, medium- to coarse-grained, and was sampled from a 150 cm coal bed. There are no other tephra layers in the coal. Mostly plagioclase and very altered bubblewall shards and pumice fragments (20-25% feldspar and 20-25% altered glass). The plagioclase is angular to rounded, and zoned and twinned. Some glass may be unaltered. Three to 4% stubby to euhadral hornblende with weak pleochroism. Some hornblende grains appear slightly rounded. One to 2% opaques, and trace k-spar, quartz, organic material, zircon, and epidote.
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.