Station: 05BL-3

Station ID: 05BL-3 [1]
Volcano: Redoubt
Collector: Schiff, Caleb
Date visited:
NAD83 latitude: 60.4198
NAD83 longitude: -152.35654
Default location: No
Location description: Bear Lake, located in the upper Cook Inlet lowlands of south-central Alaska. Core 3 taken from eastern basin. The summit of Redoubt Volcano is 22 km west. Cub Lake is 17 km away. The lake is lcoated at 90 m above sea level and has two sub-basins: a deeper western sub-basin with a maximum depth of 17 m and a shallower eastern basin. Lake surface area is 0.5 square km and the drainage basin area is 1.5 square km, with a maximum elevation of 200 m and minor relief. Bear Lake has no inflow streams and is likely fed primarily by groundwater; however, there is one outflow to the north. Sediment cores recovered from Bear-Lake are primarily massive gyttja, and 69 tephra layers greater than or equal to 1 mm thick (38 were deposited between 11540 and 3850 years BP and the other 41 were deposited since then). Ten major tephras and six minor tephras were correlated between BL-3 and CB-2 (from Cub Lake), primarily on the basis of their estimated age, stratigraphic sequence, and color; these tephras were used to form the basic tephrostratigraphic framework and as a basis for correlations of other minor tephras betwen the two lakes. Datum not specified, assumed to be NAD83.
Station Location:
Samples:
BL-3E_1.4
BL-3E_13.2
BL-3E_27.5
BL-3E_28.8
BL-3E_37.9
BL-3E_40.5
BL-3_52.0
BL-3_65.7
BL-3_104.7
BL-3_112.4
BL-3_117.4
BL-3_131.9
BL-3_163.9
BL-3_179.3
BL-3_180.4
BL-3_182.7
BL-3_183.7
BL-3_191.5
BL-3_193.3
BL-3_195.5
BL-3_199.4
BL-3_202.0
BL-3_207.0
BL-3_216.4
BL-3_219.2
BL-3_221.7
BL-3_225.0
BL-3_240.0
BL-3_241.0
BL-3_242.4
BL-3_248.4
BL-3_264.4
BL-3_269.0
BL-3_273.0
BL-3_278.3
BL-3_298.5
BL-3_299.7
BL-3_302.10
BL-3_306.5
BL-3_311.4
BL-3_312.6
BL-3_329.2
BL-3_331.2
BL-3_332.9
BL-3_334.4
BL-3_340.9
BL-3_345.4
BL-3_358.9
BL-3_364.5
BL-3_376.2
BL-3_379.4
BL-3_381.8
BL-3_392.6
BL-3_405.7
BL-3_414.6
BL-3_418.0
BL-3_419.4
BL-3_419.65
BL-3_423.7
BL-3_427.5
BL-3_428.9
BL-3_432.4
BL-3_468.7
BL-3_471.2
BL-3_477.6
BL-3_428.9
BL-3_428.9
BL-3_345.4
BL-3_345.4
BL-3_345.4
BL-3_302.10
BL-3_302.10
BL-3_302.10
BL-3_269.0
BL-3_269.0
BL-3_269.0
BL-3_219.2
BL-3_219.2
BL-3_65.7
BL-3_65.7
BL-3_65.7
05BL3-5.0
05BL3-9.0
05BL3-22.0

References Cited

[1] An improved proximal tephrochronology for Redoubt Volcano, Alaska, 2010

Schiff, C.J., Kaufman, D.S., Wallace, K.L., and Ketterer, M.E., 2010, An improved proximal tephrochronology of Redoubt Volcano, Alaska: Journal of Volcanology and Geothermal Research, v. 193, no. 3/4, p. 203-214, doi: 10.1016/j.jvolgeores.2010.03.015 .