Geology and rock magnetism of Cinder Cone lava flows, Lassen Volcanic National Park, California
James DE. 1966. Geology and rock magnetism of Cinder Cone lava flows, Lassen Volcanic National Park, California. Geological Society of America Bulletin. 77(3):303-312
At least four Recent quartz basalt flows are associated with Cinder Cone and are petrographically indistinguishable. Quartz xenocrysts, siliceous pumice inclusions, and a high (56 percent) silica content in the presence of 6-8 percent olivine indicate contamination of basalt. Large scatter in magnetic directions of flow surface and volcanic bomb samples indicates rotation of surface lava blocks after cooling below the Curie point.
- Type
- Journal Article
- Authors
- James, David
- Units
- LAVO
- Keywords
- Basalts, Cinder Cone, Geology, lava flows, magnetism, Physical Sciences