Sample: 06AUMC008a.m


Sample ID: 06AUMC008a.m [1]
Station ID: 06AUMC008
AT Num:
Volcano: Augustine
Possible source:
Eruption: Augustine 2005/12
Collector: Coombs, M. L.
Date sampled: 2006-02-20
Sample type 1: Lahar
Color: dark/light gray
Final unit: 2006_ExLh
Text Description: Mafic portion of a large piece of banded scoria, total initial sample weight 5 kg. 15% light colored bands, 85% dark colored bands. Light bands up to 2 cm thick, hosted in the dark portions. Light bands shear down to sub-mm streaks (smaller than individual phenocrysts), possible sub-macroscopic mingling. The dark portion is 45% gray on the outside of the block and 85% gray in the interior; very similar to 06AUMC005a and 06AUMC007c.
Sample Location:

References Cited

[1] Petrology and geochemistry of the 2006 eruption of Augustine Volcano, 2010

Larsen, J.F., Nye, C.J., Coombs, M.L., Tilman, Mariah, Izbekov, Pavel, and Cameron, Cheryl, 2010, Petrology and geochemistry of the 2006 eruption of Augustine Volcano, chapter 15 of Power, J.A., Coombs, M.L., and Freymueller, J.T., eds., The 2006 eruption of Augustine Volcano, Alaska: U.S. Geological Survey Professional Paper 1769, p. 335-382 and spreadsheets [http://pubs.usgs.gov/pp/1769/chapters/p1769_chapter15].