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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
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: 6197
General procedures for bacteriology General procedures for bacteriology
No abstract available
Authors
D.G. Elliott
Geographic information systems Geographic information systems
No abstract available.
Authors
G.T. Koeln, L.M. Cowardin, L.L. Strong
Geographic modeling of food production from rainfed agriculture—Senegal case study Geographic modeling of food production from rainfed agriculture—Senegal case study
No abstract available.
Authors
D. G. Moore, G.G. Tappan, Stephen M. Howard, R.W. Lietzow, C.A. Nadeau, W. Renison, J. Olsson
Geologic framework of the Aleutian arc, Alaska Geologic framework of the Aleutian arc, Alaska
The Aleutian arc is the arcuate arrangement of mountain ranges and flanking submerged margins that forms the northern rim of the Pacific Basin from the Kamchatka Peninsula (Russia) eastward more than 3,000 km to Cooke Inlet (Fig. 1). It consists of two very different segments that meet near Unimak Pass: the Aleutian Ridge segment to the west and the Alaska Peninsula-the Kodiak Island...
Authors
Tracy L. Vallier, David W. Scholl, Michael A. Fisher, Terry R. Bruns, Frederic H. Wilson, Roland E. von Huene, Andrew J. Stevenson
Geology of northern Alaska Geology of northern Alaska
No abstract available.
Authors
Thomas E. Moore, Wes K. Wallace, Kenneth J. Bird, Susan M. Karl, Charles G. Mull, John T. Dillon
Geology of Seward Peninsula and Saint Lawrence Island Geology of Seward Peninsula and Saint Lawrence Island
Seward Peninsula (Fig. 1) may be divided into two geologic terranes (Fig. 2) on the basis of stratigraphy, structure, and metamorphic history. The Seward terrane, an area 150 by 150 km in the central and eastern peninsula, is dominated by Precambrian(?) and early Paleozoic blueschist-, greenschist-, and amphibolite-facies schist and marble, and intruded by three suites of granitic rocks...
Authors
Alison B. Till, Julie A. Dumoulin
Geology of south-central Alaska Geology of south-central Alaska
South-central Alaska is defined as the region bounded by the Kuskokwim Mountains to the northwest, the basins north of the Alaska Range to the north, the Canadian border to the east, and the Chugach Mountains to the south (Fig. 1). This region, hereafter called the study area, includes the Alaska Range, the Wrangell, Nutzotin, and Talkeetna mountains, the Copper River and the Susitna...
Authors
Warren J. Nokleberg, George Plafker, Frederic H. Wilson
Geology of the Cumberland Gap area, Kentucky, Tennessee, and Virginia Geology of the Cumberland Gap area, Kentucky, Tennessee, and Virginia
No abstract available
Authors
K. J. Englund, R. E. Thomas, J.B. Roen
Giant Garter Snake (Thamnophis gigas) Giant Garter Snake (Thamnophis gigas)
No abstract available at this time
Authors
Robert N. Fisher, G. Hansen, R.W. Hansen, G. Stewart
Giant Hawaiian landslides Giant Hawaiian landslides
Sixty-eight landslides more than 20 km long are present along a 2200 km segment of the Hawaiian Ridge from near Midway to Hawaii. Some of the landslides exceed 200 km in length and 5000 km3 in volume, ranking them among the largest on Earth. Most of these giant landslides were discovered during a mapping program of the U.S. Hawaiian Exclusive Economic zone from 1986 to 1991 utilizing the...
Authors
J.G. Moore, W. R. Normark, R. T. Holcomb
Graptemys ernsti Graptemys ernsti
No abstract available at this time
Authors
J.E. Lovich, C.J. McCoy
Graptemys gibbonsi Graptemys gibbonsi
No abstract available at this time
Authors
J.E. Lovich, C.J. McCoy