Conference Papers
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Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.
Filter Total Items: 5547
Pesticides— A new factor in coastal environments Pesticides— A new factor in coastal environments
No abstract available.
Authors
Philip A. Butler, Paul F. Springer
Quantitation of microorganic compounds in waters of the Great Lakes by adsorption on activated carbon Quantitation of microorganic compounds in waters of the Great Lakes by adsorption on activated carbon
Microorganic compounds in waters of Lakes Michigan and Huron have been sampled by adsorption on activated carbon in filters installed aboard the M/V Cisco and at the Hammond Bay Laboratory of the U.S. Bureau of Commercial Fisheries. The organic compounds were eluted from the carbon according to techniques developed at the U.S. Public Health Service. On the assumption that chloroform...
Authors
Stacy L. Daniels, Lloyd L. Kempe, E. S. Graham, Alfred M. Beeton
Simple measurements of morphological changes in river channels and hillslopes Simple measurements of morphological changes in river channels and hillslopes
One of the principal types of observational evidence on climatic changes in the recent geologic past is in river position and elevation. It is well known that river channels, particularly those flowing through alluvium or on relatively soft bedrock, tend to develop flood plains by lateral migration of the channel. Abandoned flood plains at elevations distinctly above the present river...
Authors
J.P. Miller, Luna Bergere Leopold
Some climatic indicators in the period A.D. 1200-1400 in New Mexico Some climatic indicators in the period A.D. 1200-1400 in New Mexico
Three centuries before Columbus landed in America, the alluvial valleys of the south-western United States teemed with activity. The indigenous peoples had been building for 300 years a culture centred around community life based on flood-water farming and on hunting. A large number of pueblos had developed on sites earlier occupied by pit-house people. Community organization had brought...
Authors
Luna Bergere Leopold, Estella B. Leopold, F. Wendorf
The movement, heterogeneity, and rate of exploitation of walleyes in northern Green Bay, Lake Michigan, as determined by tagging The movement, heterogeneity, and rate of exploitation of walleyes in northern Green Bay, Lake Michigan, as determined by tagging
The Michigan waters of northern Green Bay are an important center for commercial and sport fishing. This 400-square-mile area has supported a commercial fishery for many years but the development of the intensive sport fishery is more recent, mostly since World War II. The commercial fishery is based on several species, whereas anglers are particularly interested in the walleye...
Authors
Walter R. Crowe, Ernest G. Karvelis, Leonard S. Joeris
Browsing habits of white-tailed deer in the western Gulf Region Browsing habits of white-tailed deer in the western Gulf Region
No abstract available.
Authors
Phil D. Goodrum, Vincent H. Reid
An instance of upwelling along the east shore of Lake Michigan An instance of upwelling along the east shore of Lake Michigan
No abstract available.
Authors
James W. Moffett
Dissolved oxygen in Lake Erie, past and present Dissolved oxygen in Lake Erie, past and present
No abstract available.
Authors
John F. Carr
Light penetration in the Great Lakes Light penetration in the Great Lakes
No abstract available.
Authors
Alfred M. Beeton
Microorganic constituents of water of the Great Lakes Microorganic constituents of water of the Great Lakes
No abstract available.
Authors
Lloyd L. Kempe, Stacy L. Daniels, Alfred M. Beeton
Water and the arid zone of the United States Water and the arid zone of the United States
In a pluvial period associated with Wisconsin glaciation the closed basin of the Estancia Valley in New Mexico held a lake which, at its maximum extent, was 150 feet deep and had a surface area of 450 square miles. This basin, with a mean elevation of about 6,000 feet, has at present an annual precipitation of about 14 inches. Estimates have been made of the Pleistocene precipitation...
Authors
Luna Bergere Leopold
Paper A: Terrestrial features of impact origin Paper A: Terrestrial features of impact origin
Craters made by meteorites striking the earth are discussed, with attention given to geological evidence for discriminating them from craters formed by other structural processes. The major known meteorite craters are briefly described, as well as other features that are considered probable or possible meteorite craters on the basis of less conclusive evidence. Separate tabulations are...
Authors
Eugene Merle Shoemaker, R. E. Eggleton