TY - BOOK AU - Lemke, Richard Walter, CN - QE75 CN - QE696 CN - QE75 CY - Washington : DA - 1975. ID - 229427 KW - Geology, Stratigraphic KW - Volcanic ash, tuff, etc. KW - Geology PB - U.S. Govt. Print. Off., PP - Washington : PY - 1975. T1 - Geologic setting of the Glacier Peak and Mazama ash-bed markers in west-central Montana / TI - Geologic setting of the Glacier Peak and Mazama ash-bed markers in west-central Montana / ER -