Skip to main content
U.S. flag

An official website of the United States government

Book Chapters

Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.

Filter Total Items: 6164

The San Andreas fault in Sonoma and Mendocino counties The San Andreas fault in Sonoma and Mendocino counties

This two-day trip explores the northern San Andreas fault in the Gualala area between Fort Ross and Point Arena (Fig. 1). The first stop overlooks the Golden Gate Bridge and includes a discussion of its in-progress seismic retrofit. Several subsequent stops are at paleoseismic sites on the San Andreas fault. The stop at Annapolis Road includes a short hike along the fault through the...
Authors
Carol S. Prentice, Keith I. Kelson

Source scaling telationships of microearthquakes at Parkfield, CA, determined using the SAFOD pilot hole seismic array Source scaling telationships of microearthquakes at Parkfield, CA, determined using the SAFOD pilot hole seismic array

Weestimate thesourceparametersof34microearthquakes at Parkfield,CA,ranginginsizefromM-0.2 toM2.1, byanalyzingseismogramsrecorded bythe32-level, 3-componentseismic arrayinstalled in theSAFODPilotHole. Wesucceeded in obtainingstablespectral ratios by stacking theratioscalculatedfromthemovingwindowstakenalongtherecordfollowingthedirectwaves.Thesespectral ratios were modeledtodetermine...
Authors
Kazutoshi Imanishi, William L. Ellsworth

Groundwater modeling Groundwater modeling

No abstract available.
Authors
Leonard F. Konikow, Thomas E. Reilly, Paul M. Barlow, Clifford I. Voss

Earthquake Trail, Sanborn County Park: A geology hike along the San Andreas fault Earthquake Trail, Sanborn County Park: A geology hike along the San Andreas fault

On the southern part of the San Francisco Peninsula, the San Andreas fault traverses the actively uplifting Santa Cruz Mountains. The field guide is comprised of a hiking tour along the fault in Sanborn County fault, a visit to a winery and vineyards traversed by the fault, and visits to two wineries that provide vistas of the San Andreas Rift Valley and surroundings.
Authors
Philip W. Stoffer

A broadscale fish-habitat model development process: Genesee Basin, New York A broadscale fish-habitat model development process: Genesee Basin, New York

We describe a methodology for developing species-habitat models using available fish and stream habitat data from New York State, focusing on the Genesee basin. Electrofishing data from the New York Department of Environmental Conservation were standardized and used for model development and testing. Four types of predictive models (multiple linear regression, stepwise multiple linear...
Authors
James E. McKenna, Richard R. McDonald, Chris Castiglione, Sandy S. Morrison, Kurt P. Kowalski, Dora R. May Passino

A unified strategy for monitoring changes in abundance of birds associated with North American tidal marshes A unified strategy for monitoring changes in abundance of birds associated with North American tidal marshes

An effective approach to species conservation involves efforts to prevent species from becoming threatened with extinction before they become listed as endangered. Standardized monitoring efforts provide the data necessary to estimate population trajectories of many species so that management agencies can identify declining species before they reach the point of endangerment. Species...
Authors
C.J. Conway, Sam Droege
Was this page helpful?