Search Constraints

Start Over
Filtering by: Subject Temperature -- Oregon -- Crater Lake Remove constraint Subject: Temperature -- Oregon -- Crater Lake Creator Lidstrom, John Walter Remove constraint Creator: Lidstrom, John Walter Resource Type Dissertation Remove constraint Resource Type: Dissertation

Search Results

  • A new model for the formation of Crater Lake Caldera, Oregon

    Creator:
    Lidstrom, John Walter
    Abstract:
    During the Pleistocene, an andesitic volcano named Mount Mazama grew to a probable elevation of 3000 meters in south- central Oregon. Near the end of the Pleistocene, three diverse magma types appeared in the eruptive products associated with Mount Mazama: l)High-alumina basaltic andesite magma associated with an early plateau and...
    Resource Type:
    Dissertation