Publications
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Geomorphic and hydrologic dynamics of zero-order basins Geomorphic and hydrologic dynamics of zero-order basins
The 1987 International Symposium on Erosion and Sedimentation in the Pacific Rim, held August 3–7, 1987, in Corvallis, Oreg., included a special session on the geomorphic and hydrologic dynamics of zero-order drainage basins. “Zero-order basin” is one of several terms used to describe unchanneled swales or hollows that may occupy considerable areas of higher-order drainage basins. These...
Authors
Richard M. Iverson
Hawaii Volcano Observatory 75th anniversary Hawaii Volcano Observatory 75th anniversary
The 75th anniversary of the founding of the U.S. Geological Survey (USGS) Hawaiian Volcano Observatory (HVO) was celebrated during January 1987. The festivities began on January 9 with the opening in Hilo of a major exhibit at the Wailoa Center on the current work of HVO, its history, and its special relationship to Hawaii Volcanoes National Park. In addition to spectacular photographs...
Authors
Thomas L. Wright, R. Decker
Book review of The Stability of Slopes, by E.N. Bromhead, Chapman and Hall, New York, 373. p. Book review of The Stability of Slopes, by E.N. Bromhead, Chapman and Hall, New York, 373. p.
No abstract available.
Authors
Richard M. Iverson
Eocene siliceous and calcareous phytoplankton, Deep Sea Drilling Project Leg 95 Eocene siliceous and calcareous phytoplankton, Deep Sea Drilling Project Leg 95
Eocene siliceous and calcareous phytoplankton, with emphasis on silicoflagellates, were studied in 62 samples from DSDP Sites 612 and 613 on the continental slope and rise off New Jersey. The mid-latitude assemblages correlate well with assemblages from California, Peru, and offshore of southern Brazil, but are distinctly different from high-latitude cold-water assemblages of the...
Authors
David Bukry
North Atlantic Quaternary silicoflagellates, Deep Sea Drilling Project Leg 94 North Atlantic Quaternary silicoflagellates, Deep Sea Drilling Project Leg 94
Quaternary silicoflagellates from Deep Sea Drilling Project (DSDP) Mid-Atlantic Leg 94 are generally sparse and dissolution-thinned. Mesocena quadrangula, a low-latitude biostratigraphic guide species, occurs at all four sites studied (606, 607, 609, and 611), allowing identification of low-latitude zones—Dictyocha aculeata Zone, Mesocena quadrangula Zone, and Dictyocha stapedia stapedia...
Authors
David Bukry
Disruption of the Mauna Loa magma system by the 1868 Hawaiian earthquake: Geochemical evidence. Disruption of the Mauna Loa magma system by the 1868 Hawaiian earthquake: Geochemical evidence.
To test whether a catastrophic earthquake could affect an active magma system, mean abundances (adjusted for "olivine control") of titanium, potassium, phosphorus, strontium, zirconium, and niobium of historic lavas erupted from Mauna Loa Volcano, Hawaii, after 1868 were analyzed and were found to decrease sharply relative to lavas erupted before 1868. This abrupt change in lava...
Authors
Robert I. Tilling, J. Michael Rhodes, J. W. Sparks, John P. Lockwood, P. W. Lipman
The physics of debris flows — A conceptual assessment The physics of debris flows — A conceptual assessment
Debris flows exhibit conspicuous dynamic interactions among their solid and fluid constituents. Key features of the interactions are neglected in traditional theories that treat debris flows as viscoplastic continua or as uniformly dispersed grain flows, but improved understanding of grain-grain and fluid-grain interactions has emerged from recent experimental and theoretical research...
Authors
Richard M. Iverson, Roger P. Denlinger
A chronology of U.S. Geological Survey hazards warnings: 1976-1986 A chronology of U.S. Geological Survey hazards warnings: 1976-1986
No abstract available.
Authors
Paula L. Gori, Clement F. Shearer
Volcanism in Hawaii Volcanism in Hawaii
No abstract available.
Chemical analyses of rocks and glass separates from Crater Lake National Park and vicinity, Oregon Chemical analyses of rocks and glass separates from Crater Lake National Park and vicinity, Oregon
No abstract available.
Authors
P. E. Bruggman, C. R. Bacon, P. J. Aruscavage, R.W. Lerner, L.J. Schwarz, K. C. Stewart
Partition coefficients determined from phenocryst and glass analyses of the climactic ejecta of Mount Mazama, Oregon Partition coefficients determined from phenocryst and glass analyses of the climactic ejecta of Mount Mazama, Oregon
No abstract available.
Authors
C. R. Bacon, Wes Hildreth, T. H. Druitt