Publications
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Chaotic deposition by a giant wave, Molokai, Hawaii Chaotic deposition by a giant wave, Molokai, Hawaii
A coral-basalt breccia-conglomerate is exposed >60m above present sea level and nearly 2km inland from the present shoreline on the southwest side of East Molokai Volcano. This deposits was apparently laid down by a giant wave that broke over an outer reef, similar to the present fringing reef, and advanced as a turbulent bore over the back-reef flat, picking up a slurry of carbonate...
Authors
J.G. Moore, W.B. Bryan, K.R. Ludwig
Dissolved volatile concentrations in an ore-forming magma Dissolved volatile concentrations in an ore-forming magma
Infrared spectroscopic measurements of glass inclusions within quartz phenocrysts from the Plinian fallout of the 22 Ma tuff of Pine Grove show that the trapped silicate melt contained high concentrations of H2O and CO2. Intrusive porphyries from the Pine Grove system are nearly identical in age, composition, and mineralogy to the tephra, and some contain high-grade Mo mineralization...
Authors
J. B. Lowenstern
Surface degassing and modifications to vesicle size distributions in active basalt flows Surface degassing and modifications to vesicle size distributions in active basalt flows
The character of the vesicle population in lava flows includes several measurable parameters that may provide important constraints on lava flow dynamics and rheology. Interpretation of vesicle size distributions (VSDs), however, requires an understanding of vesiculation processes in feeder conduits, and of post-eruption modifications to VSDs during transport and emplacement. To this end...
Authors
K. V. Cashman, M. T. Mangan, S. Newman
Stream-channel changes in response to volcanic detritus under natural and augmented discharge, South Coldwater Creek, Washington Stream-channel changes in response to volcanic detritus under natural and augmented discharge, South Coldwater Creek, Washington
No abstract available.
Authors
D. F. Meyer
Russian volcanic eruption disrupts north pacific air traffic: Alaska Volcano Observatory fact sheet Russian volcanic eruption disrupts north pacific air traffic: Alaska Volcano Observatory fact sheet
No abstract available.
Authors
Thomas P. Miller, Vladimir Yu. Kirianov, H. Lee Kelley
Volcanic gas emissions and their impact on ambient air character at Kilauea Volcano, Hawaii Volcanic gas emissions and their impact on ambient air character at Kilauea Volcano, Hawaii
Currently, gas emissions from Kilauea occur from the summit caldera, along the middle East Rift Zone (ERZ), and where lava enters the ocean. We estimate that the current ERZ eruption of Kilauea releases between 400 metric tonnes of SO2 per day, during eruptive pauses, to as much as 1850 metric tonnes per day during actively erupting periods, along with lesser amounts of other chemically...
Authors
A. J. Sutton, T. Elias, R. Navarrete
Publications of the Branch of Atlantic Marine Geology for Calendar Year 1993 Publications of the Branch of Atlantic Marine Geology for Calendar Year 1993
This U.S. Geological Survey Open-File Report [extract] contains a listing of publications authored or co-authored by members of the Branch of Atlantic Marine Geology and published in calendar year 1993. The Branch conducts a broad geologic and geophysical research and mapping program, primarily along the U.S. Atlantic Margin, in the Great Lakes, the Gulf of Mexico, the Caribbean and...
Authors
Margaret C. Mons-Wengler, Robert N. Oldale
Hydrologic hazards at Alaska volcanoes?Chakachatna River Basin near Crater Peak, Spurr Volcano Hydrologic hazards at Alaska volcanoes?Chakachatna River Basin near Crater Peak, Spurr Volcano
No abstract available.
Authors
J.M. Dorava, C. F. Waythomas
Analysis of the origin of landslides in the New Madrid seismic zone Analysis of the origin of landslides in the New Madrid seismic zone
No abstract available.
Authors
R.W. Jibson, D. K. Keefer
Chapter C. The Loma Prieta, California, Earthquake of October 17, 1989 - Fire, police, transportation and hazardous materials Chapter C. The Loma Prieta, California, Earthquake of October 17, 1989 - Fire, police, transportation and hazardous materials
The papers in this chapter discuss some of the failures and successes that resulted from the societal response by a multitude of agencies to the Loma Prieta earthquake. Some of the lessons learned were old ones relearned. Other lessons were obvious ones which had gone unnoticed. Still, knowledge gained from past earthquakes spawned planning and mitigation efforts which proved to be...
Authors
Charles R. Scawthorn
The Loma Prieta, California, Earthquake of October 17, 1989 — Hydrologic disturbances The Loma Prieta, California, Earthquake of October 17, 1989 — Hydrologic disturbances
Seismic events have long been known to cause changes in the level of oceans, streams, lakes, and the water table. The great San Francisco earthquake of 1906 induced significant hydrologic changes that were qualitatively similar to those changes observed for the Loma Prieta earthquake. What is different is that the hydrologic data sets collected from the Loma Prieta event have enough...