Publications
Filter Total Items: 3001
Ice volumes on Cascade Volcanoes: Mount Rainier, Mount Hood, Three Sisters, and Mount Shasta Ice volumes on Cascade Volcanoes: Mount Rainier, Mount Hood, Three Sisters, and Mount Shasta
During the eruptions of Mount St. Helens the occurrence of floods and mudflows made apparent the need for predictive water-hazard analysis of other Cascade volcanoes. A basic requirement for such analysis is information about the volumes and distributions of snow and ice on other volcanoes. A radar unit contained in a backpack was used to make point measurements of ice thickness on major...
Authors
Carolyn L. Driedger, Paul M. Kennard
Signs of a northeastern earthquake? Signs of a northeastern earthquake?
No abstract available.
Authors
R.L. Kerr
Lithic breccia and ignimbrite erupted during the collapse of Crater Lake Caldera, Oregon Lithic breccia and ignimbrite erupted during the collapse of Crater Lake Caldera, Oregon
The climactic eruption of Mount Mazama (6845 y.B.P.) vented a total of ∼50 km3 of compositionally zoned rhyodacitic to basaltic magma from: (a) a single vent as a Plinian pumice fall deposit and the overlying Wineglass Welded Tuff, and (b) ring vents as ignimbrite and coignimbrite lithic breccia accompanying the collapse of Crater Lake caldera. New field and grain-size data for the ring...
Authors
T. H. Druitt, C. R. Bacon
Book review of Slope Instability, D. Brunsden and D.B. Prior, eds., Wiley, New York, 620 p. Book review of Slope Instability, D. Brunsden and D.B. Prior, eds., Wiley, New York, 620 p.
No abstract available.
Authors
Richard M. Iverson
Parkfield earthquake looks to be on schedule Parkfield earthquake looks to be on schedule
No abstract available.
Authors
R. A. Kerr
Groundwater flow and mass-movement dynamics, [abs.] Groundwater flow and mass-movement dynamics, [abs.]
No abstract available.
Authors
R.M. Iverson
Magmatic inclusions in silicic and intermediate volcanic rocks Magmatic inclusions in silicic and intermediate volcanic rocks
Fine‐grained ellipsoidal inclusions from a few millimeters to over l m in size are present in many intermediate to silicic lava flows and domes. Only recently has it become widely accepted that such inclusions are chilled blobs of magma. Their magmatic origin is manifested by vesicularity and high groundmass porosity, by ellipsoidal shapes, by mingling at contacts with the host, and by...
Authors
Charles R. Bacon
San Mateo County geographic information systems (GIS) project San Mateo County geographic information systems (GIS) project
No abstract available.
Authors
Earl E. Brabb
Long Valley is quiet but still bulging Long Valley is quiet but still bulging
No abstract available.
Authors
R. A. Kerr