Sample: Ahklun Mountains-Tephra-B_average

Sample ID:	Ahklun Mountains-Tephra-B_average ^[1] ^[2] ^[3] ^[4] ^[5]
Station ID:	Ahklun Mountains Regional Tephra
AT Num:
Volcano:
Possible source:
Eruption:
Collector:	Kaufman, D. S.
Date sampled:
Sample type 1:	Tephra Fall
Color:
Final unit:
Text Description:	Average composition of samples from Lone Spruce Pond (UA1786), Sunday Pond (UA1796=2003), Little Swift Lake (Axford and Kaufman 2004) (UA1794), Waskey Lake (1788), Arolik Lake (Kaufman et al. 2003) (UA1969), Cascade Lake (Kathan 2006) (UA1972), and Sunday Lake (UA1792). Along with Tephra A, Tephra B of the Ahklun Mountains is the most widespread of all of the regional tephra beds. Tephra B is predominantly blocky glass and pumice, with rare bubble-walled shards and large vesicular pumice. Many of the glass shards are crystal-rich, containing microcrysts of plagioclase and pyroxene. The glass tends to be various shades of brown, with rare clear glass.
Sample Location:

References Cited

[1] Late glacial and Holocene glacier and vegetation fluctuations at Little Swift Lake, Southwestern Alaska, U.S.A., 2004

Axford, Yarrow, and Kaufman, D.S., 2004, Late glacial and Holocene glacier and vegetation fluctuations at Little Swift Lake, Southwestern Alaska, U.S.A.: Arctic, Antarctic, and Alpine Research, v. 36, n. 2, p. 139-146.

[2] Late Quaternary tephrostratigraphy, Ahklun Mountains, SW Alaska, 2012

Kaufman, D.S., Jensen, B.J.L., Reyes, A.V., Schiff, C.J., Froese, D.G., and Pearce, N.J.G., 2012, Late Quaternary tephrostratigraphy, Ahklun Mountains, SW Alaska: Journal of Quaternary Science, v. 27, n. 4, p. 344-359, doi:10.1002/jqs.1552 .

[3] A 33,000 year record of environmental change from Arolik Lake, Ahklun Mountains, Alaska, 2003

Kaufman, D.S., Hu, F.S., Briner, J.P., Werner, Al, Finney, B.P., and Gregory-Eaves, Irene, 2003, A 33,000 year record of environmental change from Arolik Lake, Ahklun Mountains, Alaska: Journal of Paleolimnology, v. 30, p. 343-362.

[4] Late Holocene climate fluctuations at Cascade Lake, northeastern Ahklun Mountains, southwestern Alaska, 2006

Kathan, Kasey, 2006, Late Holocene climate fluctuations at Cascade Lake, northeastern Ahklun Mountains, southwestern Alaska: Northern Arizona University M.S. thesis, 112 p., available at http://jan.ucc.nau.edu/~dsk5/S_AK/Cascade/KK_ThesisFinal.pdf .

thesis pdf on NAU website

[5] Holocene glacier fluctuations, Waskey Lake, northeastern Ahklun Mountains, southwestern Alaska, 2004

Levy, L.B., Kaufman, D.S., and Werner, A., 2004, Holocene glacier fluctuations, Waskey Lake, northeastern Ahklun Mountains, southwestern Alaska: The Holocene, v. 14, p. 185-193.