Publications
Filter Total Items: 2695
Chronology of mudflows in the South Fork and North Fork Toutle River following the May 18 eruption
No abstract available.
Authors
J. E. Cummans
Summaries of data on and lists of references to metallic and selected nonmetallic mineral occurrences in the Hughes, Kotzebue, Melozitna, Selawik, and Shungnak quadrangles, west-central Alaska, supplement to Open-file report 75-627: Part B — Lists of refe
No abstract available.
Authors
Edward Huntington Cobb, Thomas P. Miller
Potassium-argon ages from the Mount Taylor Volcanic Field, New Mexico
Fourteen new K-Ar dates for volcanic rocks of the Mount Taylor field, New Mexico, indicate that most activity occurred between 4.3 and 1.5 m.y. (million years) ago. Peak activity was at about 3.0-2.5 m.y., both on the central andesite-rhyolite shield volcano and on the surrounding alkali basalt-trachyte volcanic plateau, and occurred concurrently with an episode of NNE-trending basin-range faultin
Authors
Peter W. Lipman, Harald H. Mehnert
Late Cenozoic volcanism, geochronology, and structure of the Coso Range, Inyo County, California
The Coso Range lies at the west edge of the Great Basin, adjacent to the southern part of the Sierra Nevada. A basement complex of pre‐Cenozoic plutonic and metamorphic rocks is partly buried by ∼35 km3 of late Cenozoic volcanic rocks that were erupted during two periods, as defined by K‐Ar dating: (1) 4.0–2.5 m.y., ∼31 km3 of basalt, rhyodacite, dacite, andesite, and rhyolite, in descending order
Authors
Wendell A. Duffield, Charles R. Bacon, G. Brent Dalrymple
Comment and reply on ‘Comparison of Miocene provincial foraminiferal stages to coccolith zones in the California Continental Borderland’: Reply
No abstract avalable.
Authors
James K. Crouch, David Bukry
Silicoflagellate biostratigraphy and paleoecology in the eastern equatorial Pacific, Deep Sea Drilling Project, Leg 54.
No abstract available.
Authors
David Bukry
Opal phytoliths from the tropical eastern Pacific Ocean, Deep Sea Drilling Project Leg 54.
No abstract available.
Authors
David Bukry
Coccolith stratigraphy, tropical eastern Pacific Ocean, Deep Sea Drilling Project Leg 54
No abstract available.
Authors
David Bukry
Potential hazards from future eruptions in the vicinity of Mount Shasta Volcano, Northern California
Mount Shasta has erupted, on the average, at least once per 800 years during the last 10,000 years, and about once per 600 years during the last 4,500 years. The last known eruption occurred about 200 radiocarbon years ago. Eruptions during the last 10,000 years produced lava flows and domes on and around the flanks of Mount Shasta, and pyroclastic flows from summit and flank vents extended as far
Authors
C. Dan Miller
Bulk density and magnetization measurements of samples from the Coso Range, California
No abstract available.
Authors
Donald Plouff, William F. Isherwood, Charles R. Bacon, Wendell A. Duffield, H. Mark Van Buren
Geological and geophysical investigations and mineral resources potential of the proposed Great Rift Wilderness Area, Idaho
No abstract available.
Authors
Mel A. Kuntz, Richard H. Lefebvre, Duane E. Champion, Lisa A. McBroome, Don R. Mabey, W. D. Stanley, H. R. Covington, James Ridenour, Ronald B. Stotelmeyer
A plotting program for producing ashfall prediction maps from the output of the NOAA forecast trajectory program; application to and examples from the 1980 Mount St. Helens eruptions
No abstract available.
Authors
William K. Smith