Publications
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Debris flow/avalanches: Process, recognition, and mitigation Debris flow/avalanches: Process, recognition, and mitigation
No abstract available.
Authors
John E. Costa, G. F. Wieczorek
A detailed chronology of the most recent eruption period at Mount Hood, Oregon A detailed chronology of the most recent eruption period at Mount Hood, Oregon
The most recent eruptive period of Mount Hood volcano, the Old Maid eruptive period, was characterized by volcano-hydrologic events (hydrologic events initiated by volcanic activity) which resulted in extensive lahar inundation in the White, Sandy, and Zigzag River drainages and produced a lithic pyroclastic flow which traveled at least 9 km down the White River from the vent area at...
Authors
Kenneth A. Cameron, P. T. Pringle
Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, June 1987 Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska, June 1987
No abstract available.
Authors
John B. Townshend, R. V. O’Connell, L.Y. Torrence
Reconnaissance investigation of sediment distribution, erosion, and transport in the upper Deschutes River, Deschutes County, Oregon, November 1986 Reconnaissance investigation of sediment distribution, erosion, and transport in the upper Deschutes River, Deschutes County, Oregon, November 1986
A preliminary investigation of sediment distribution, erosion, and transport in the upper Deschutes River was conducted in response to the perceived problem that brown trout spawning gravels were being rendered unusable due to an accumulation of fine-grained sediment. Contrary to the contention that channel gravels are being covered by fine-grained sediment, examination of the river...
Authors
K. A. Cameron, J. J. Major
Unconformable sequence boundaries at Deep Sea Drilling Project Site 612, New Jersey Transect: their characteristics and stratigraphic significance Unconformable sequence boundaries at Deep Sea Drilling Project Site 612, New Jersey Transect: their characteristics and stratigraphic significance
No abstract available.
Authors
C. Wylie Poag, Doris Low
Background and objectives of the New Jersey Transect: continental slope and upper rise Background and objectives of the New Jersey Transect: continental slope and upper rise
No abstract available.
Authors
C. Wylie Poag, Anthony B. Watts
Localized sudden changes in the geomagnetic secular variation. Localized sudden changes in the geomagnetic secular variation.
There is much debate as to whether there was a worldwide geomagnetic jerk in 1969 or 1970. It is agreed that there was an unusual sharp change in the secular variation in the east component, Y, in Europe at that time. This note points out how a localized sudden change in the secular variation pattern of one component in Europe can occur without having any large worldwide effects in any...
Authors
L.R. Alldredge
A model of geomagnetic secular variation for 1980-1983 A model of geomagnetic secular variation for 1980-1983
We developed an updated model of the secular variation of the main geomagnetic field during 1980 through 1983 based on annual mean values for that interval from 148 worldwide magnetic observatories. The model consists of a series of 80 spherical harmonics, up to and including those of degree and order 8. We used it to form a proposal for the 1985 revision of the International Geomagnetic...
Authors
N.W. Peddie, A.K. Zunde
Valles Marineris, Mars: Wet debris flows and ground ice Valles Marineris, Mars: Wet debris flows and ground ice
Detailed study of the Valles Marineris equatorial troughs suggests that the landslides in that area contained water and probably were gigantic wet debris flows: one landslide complex generated a channel that has several bends and extends for 250 km. Further support for water or ice in debris masses includes rounded flow lobes and transport of some slide masses in the direction of the...
Authors
Baerbel K. Lucchitta
Delving into faults and earthquake behavior Delving into faults and earthquake behavior
No abstract available.
Authors
R. A. Kerr
Flood power Flood power
No abstract available.