Sample has two sub-samples for geochem, sample has strat-centered depth of 499.0. Sample name is core_BL-3 equivalent depth in cm (from Table 4). Depth below the lake floor (blf) to base of tephra is 513.8 cm. Tephra thickness is 4.8 cm. Bulk grain size is Coarse ash. Maximum grain size is 4 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 G19AC00060 and G19AC00171.
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.