Micrograph of Rockland Ash
Summary
Public domain image related to the State of California, free to use, no copyright restrictions image - Picryl description
Tags
us geological survey
igneous petrology
igneous petrology of the united states
pleistocene pyroclastic rocks in california
rockland tephra
volcanic ash
volcanic rock textures
california
Date
2016
Source
U.S. Geological Survey
Link
Copyright info
public domain