|
Text Description: Upper Layer contact: 119 cm. Lower Layer Contact: 121 cm. Tephra Preservation: Discrete. Grain size: Fine. Field Identification: Field-Visual. References: ![]() |
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.