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 |