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Page 335, results 8351 - 8375

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Digital Compilation of "Preliminary Map of Landslide Deposits in Santa Cruz County, California, By Cooper-Clark and Associates, 1975": A Digital Map Database
Sebastian Report by Roberts, Andrew D. Barron, Earl E. Preface by Brabb, Richard J. Pike
1998, Open-File Report 98-792
A 1:62,500-scale black-and-white map identifying some 2,000 landslides of various types in Santa Cruz County, California, has been converted to a digital-map database that can be acquired from the U.S. Geological Survey over the Internet or on magnetic tape....
Physical characteristics of dungeness crab and halibut habitats in Glacier Bay
Guy R. Cochrane, Paul R. Carlson, Jane F. Denny, Michael E. Boyle, S. James Taggart, Philip N. Hooge
1998, Open-File Report 98-791
In Glacier Bay National Park, Alaska there are ongoing studies of Dungeness Crab (Cancer magister) and Pacific Halibut (Hippoglosus stenolepis). Scientists of the United States Geological Survey (USGS) are attempting to ascertain life history, distribution, and abundance, and to determine the effects of commercial fishing in the park (Carlson et...
Catalog of the historically active volcanoes of Alaska
T. P. Miller, R. G. McGimsey, D.H. Richter, J.R. Riehle, C.J. Nye, M. E. Yount, Julie A. Dumoulin
1998, Open-File Report 98-582
Alaska hosts within its borders over 80 major volcanic centers that have erupted during Holocene time (< 10,000 years). At least 29 of these volcanic centers (table 1) had historical eruptions and 12 additional volcanic centers may have had historical eruptions. Historical in Alaska generally means the period since 1760...
Potential mineral resources, Payette National Forest, Idaho: Description and probabilistic estimation
Arthur A. Bookstrom, Bruce R. Johnson, Theresa M. Cookro, Karen Lund, Kenneth C. Watts, Harley D. King, Merlin D. Kleinkopf, James A. Pitkin, J. David Sanchez, J. Douglas Causey
1998, Open-File Report 98-219-A
The Payette National Forest (PNF), in west-central Idaho, is geologically diverse and contains a wide variety of mineral resources. Mineral deposit types are grouped into locatable, leasable, and salable categories. The PNF has substantial past production and identified resources of locatable commodities, including gold, silver, copper, zinc, tungsten, antimony, mercury,...
The probability of lava inundation at the proposed and existing Kulani prison sites
J. P. Kauahikaua, F. A. Trusdell, C. C. Heliker
1998, Open-File Report 98-794
The State of Hawai`i has proposed building a 2,300-bed medium-security prison about 10 km downslope from the existing Kulani medium-security correctional facility. The proposed and existing facilities lie on the northeast rift zone of Mauna Loa, which last erupted in 1984 in this same general area. We use the best...
Table-top earthquakes; a demonstration of seismology for teachers and students that can be used to augment lessons in earth science, physics, math, social studies, geography
J.C. Lahr
1998, Open-File Report 98-767
The apparatus consists of a heavy object that is dragged steadily with an elastic cord. Although pulled with a constant velocity, the heavy object repeatedly slides and then stops. A small vibration sensor, attached to a computer display, graphically monitors this intermittent motion. 2 This intermittent sliding motion mimics the...
Diatom paleoecology Pass Key core 37, Everglades National Park, Florida Bay
Laura Pyle, S. R. Cooper, J.K. Huvane
1998, Open-File Report 98-522
During the 20th century, there have been large-scale anthropogenic modifications to the South Florida ecosystem. The effects of these changes on Florida Bay and its biological communities are currently of political and scientific interest. This study is part of a larger effort to reconstruct the history of environmental changes in...
Slope maps of the San Francisco Bay region, California: A digital database
Scott E. Graham, Richard J. Pike
1998, Open-File Report 98-766
PREFACE: Topography, the configuration of the land surface, plays a major role in various natural processes that have helped shape the ten-county San Francisco Bay region and continue to affect its development. Such processes include a dangerous type of landslide, the debris flow (Ellen and others, 1997) as well...