Publications
Filter Total Items: 7538
Landslides triggered by the Northridge earthquake Landslides triggered by the Northridge earthquake
No abstract available.
Authors
R.W. Jibson, E. L. Harp, D. K. Keefer, R. C. Wilson
Deep structure beneath Lake Ontario: Crustal-scale Grenville subdivisions Deep structure beneath Lake Ontario: Crustal-scale Grenville subdivisions
Lake Ontario marine seismic data reveal major Grenville crustal subdivisions beneath central and southern Lake Ontario separated by interpreted shear zones that extend to the lower crust. A shear zone bounded transition between the Elzevir and Frontenac terranes exposed north of Lake Ontario is linked to a seismically defined shear zone beneath central Lake Ontario by prominent...
Authors
D. A. Forsyth, Bernd Milkereit, Colin A. Zelt, D. J. White, R. M. Easton, Deborah R. Hutchinson
Historical shoreline mapping (II): Application of the Digital Shoreline Mapping and Analysis Systems (DSMS/DSAS) to shoreline change mapping in Puerto Rico Historical shoreline mapping (II): Application of the Digital Shoreline Mapping and Analysis Systems (DSMS/DSAS) to shoreline change mapping in Puerto Rico
A new, state-of-the-art method for mapping historical shorelines from maps and aerial photographs, the Digital Shoreline Mapping System (DSMS), has been developed. The DSMS is a freely available, public domain software package that meets the cartographic and photogrammetric requirements of precise coastal mapping, and provides a means to quantify and analyze different sources of error in...
Authors
E. Robert Thieler, William W. Danforth
Lake-level history of Lake Michigan for the past 12,000 years: the record from deep lacustrine sediments Lake-level history of Lake Michigan for the past 12,000 years: the record from deep lacustrine sediments
Collection and analysis of an extensive set of seismic-reflection profiles and cores from southern Lake Michigan have provided new data that document the history of the lake basin for the past 12,000 years. Analyses of the seismic data, together with radiocarbon dating, magnetic, sedimentologic, isotopic, and paleontologic studies of core samples, have allowed us to reconstruct lake...
Authors
Steven M. Colman, Richard M. Forester, Richard L. Reynolds, Donald S. Sweetkind, John W. King, Paul Gangemi, Glenn A. Jones, Loyd D. Keigwin, David S. Foster
Lake Michigan's late Quaternary limnological and climate history from ostracode, oxygen isotope, and magnetic susceptibility Lake Michigan's late Quaternary limnological and climate history from ostracode, oxygen isotope, and magnetic susceptibility
The limnology of Lake Michigan has changed dramatically since the late Pleistocene in response to the expansion and contraction of continental glaciers, to differential isostatic rebound, and to climate change. The lake sediment's stratigraphic trends, magnetic susceptibility, δ18O, and ostracode species abundance ratios provide criteria to identify the lake's response to glacial ice and...
Authors
Richard M. Forester, Steven M. Colman, Richard L. Reynolds, Loyd D. Keigwin
Stability of submerged slopes on the flanks of the Hawaiian Islands, a simplified approach Stability of submerged slopes on the flanks of the Hawaiian Islands, a simplified approach
Undersea transmission lines and shoreline AC-DC conversion stations and near-shore transmission lines are being considered as part of a system for transporting energy between the Hawaiian Islands. These facilities will need to be designed so that they will not be damaged or destroyed by coastal or undersea landslides. Advanced site surveys and engineering design of these facilities will...
Authors
Homa J. Lee, Michael Torresan, William McArthur
Video of the August 18, 1992, eruption of Crater Peak vent on Spurr Volcano, Alaska Video of the August 18, 1992, eruption of Crater Peak vent on Spurr Volcano, Alaska
No abstract available.
Authors
Robert G. McGimsey, Joseph M. Dorava
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
Overview of the southern Lake Michigan coastal erosion study Overview of the southern Lake Michigan coastal erosion study
No abstract available.
Authors
David W. Folger, Steven M. Colman, Peter W. Barnes
Channelized subglacial drainage over a deformable bed Channelized subglacial drainage over a deformable bed
We develop theoretically a description of a possible subglacial drainage mechanism for glaciers and ice sheets moving over saturated, deformable till. The model is based on the plausible assumption that flow of water in a thin film at the ice-till interface is unstable to the formation of a channelized drainage system, and is restricted to the case in which meltwater cannot escape...
Authors
J. S. Walder, A. Fowler
Carbonate-Sulfate Volcanism on Venus? Carbonate-Sulfate Volcanism on Venus?
Venusian canali, outflow channels, and associated volcanic deposits resemble fluvial landforms more than they resemble volcanic features on Earth and Mars. Some canali have meandering habits and features indicative of channel migration that are very similar to meandering river channels and flood plains on Earth, venusian outflow channels closely resemble water-carved outflow channels on...
Authors
Jeffrey S. Kargel, Randolph L. Kirk, Bruce Fegley, Allan H. Treiman
Rapid water-level fluctuations in a thin colluvium landslide west of Cincinnati, Ohio Rapid water-level fluctuations in a thin colluvium landslide west of Cincinnati, Ohio
No abstract available.
Authors
William C. Haneberg, A. Onder Gokce