Sample name is core_tube depth in cm (from Table 4). Depth below the lake floor (blf) to base of tephra is 590 cm. BL-3 equivalent depth is 231.9 cm. Tephra thickness is 3.5 cm. Bulk grain size is Medium ash. Maximum grain size is 2.5 mm. Long axis of the largest single grain for tephras with grains >0.5 mm.
An improved proximal tephrochronology for Redoubt Volcano, Alaska
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.