Chicken 26 mi (42 km) NW Tetlin 49 mi (79 km) SW Northway Junction 49 mi (79 km) SW Tok 50 mi (80 km) SW Anchorage 316 mi (508 km) SW
DESCRIPTION
From Wood and Kienle (1990) [1]: "Prindle volcano is a small isolated basaltic cone in the midst of the metamorphic and granitic terrane of the Yukon-Tanana upland, east-central Alaska. The cone is ~900 to 1,000 m in diameter at its base and has as crater ~90 m deep, which is breached on the south. A lava flow extends from the breached crater ~6.4 km to the southeast, where it turns southwest and continues an additional 4.8 km in a river valley.
"The cone and lava flow are vesicular basanite, rich in phenocrystal and xenocrystal olivine as well as inclusions of peridotite ranging up to 13 cm in diameter. Fragments of crystalline schists of the granulite facies with gneissose structure also occur as inclusions, but are less abundant than peridotite inclusions."
Blondes and others (2007) [2] report an eruption age for Prindle of 176,000 years, +/- 16,000. Andronikov and Mukasa (2010) [3] report a 40Ar/39Ar age of 200,000 years, +/- 60,000.
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Blondes, M.S., Reiners, P.W., Edwards, B.R., and Biscontini, Adrian, 2007, Dating young basalt eruptions by (U-Th)/He on xenolithic zircons: Geology, v. 35, n. 1, p. 17-20, doi:10.1130/G22956A.1.
Andronikov, A.V., and Mukasa, S.B., 2010, 40Ar/39Ar eruption ages and geochemical characteristics of Late Tertiary to Quaternary intraplate and arc-related lavas in interior Alaska: Lithos, v. 115, p. 1-14, doi:10.1016/j.lithos.2009.11.002 .
