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Page 3986, results 99626 - 99650

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Not all publications have extents, not all extents are completely accurate
Correlation and age of the Upper Jurassic Morrison Formation from magnetostratigraphic analysis
Maureen B. Steiner, S. G. Lucas, Eugene Merle Shoemaker
Mario V. Caputo, James A. Peterson, Karen J. Franczyk, editor(s)
1994, Book chapter, Mesozoic systems of the Rocky Mountain region, USA, 1994
The magnetostratigraphy of the Morrison Formation of east-central New Mexico resembles that of three western Colorado sections. Magnetic polarity and lithology agree among the sections, indicating the correlation potential of magnetostratigraphy in this lithologically complex formation. Both magnetostratigraphy, lithology, and paleopoles divide the formation into two parts. The lower...
Mantle helium in the groundwater of the Mirror Lake Basin, New Hampshire, USA, 1994
T. Torgersen, S. Drenkard, K. Farley, P. Schlosser, Allen M. Shapiro
1994, Book chapter, Noble gas geochemistry and cosmoschemistry
Helium isotope analyses of ground waters from the Mirror Lake drainage basin in central New Hampshire (USA) show helium in excess of air-saturated water by up to 200x. The freon ages of these waters are younger than 50 years, consistent with the local hydrology. This excess helium has an isotope...
Effects of salinity on freshwater fishes in coastal plain drainages in the southeastern U.S.
Mark S. Peterson, Michael R. Meador
1994, Reviews in Fisheries Science (2) 95-119
This review focuses on the influence of salinity on freshwater fishes in coastal rivers and estuaries of the southeastern U.S. Influences of salinity on freshwater fish species can be explained partly through responses evidenced by behavior, physiology, growth, reproduction, and food habits during all aspects of life history. Factors influencing...
Neural networks for river flow prediction
Nachimuthu Karunanithi, William J. Grenney, Darrell Whitley, Ken Bovee
1994, Journal of Computing in Civil Engineering (8) 201-203
The surface‐water hydrographs of rivers exhibit large variations due to many natural phenomena. One of the most commonly used approaches for interpolating and extending streamflow records is to fit observed data with an analytic power model. However, such analytic models may not adequately represent the flow process, because they are...
Hydrological controls on dissolved organic carbon during snowmelt in the Snake River near Montezuma, Colorado
G.M. Hornberger, Kenneth E. Bencala, D.M. McKnight
1994, Biogeochemistry (25) 147-165
A quantitative understanding of the factors controlling the variation of dissolved organic carbon (DOC) in headwater streams is of scientific concern for at least two reasons. First, quantifying the overall carbon budgets of lotic systems is needed for a fundamental understanding of these systems. Second, DOC interacts strongly with other...
Wilderness monitoring and data management
A. R. Riebau
1994, Environmental Software (9) 227-232
In the last decade, increased public interest in natural areas has resulted in increased monitoring activity by federal wilderness managers to assess the status of wilderness values. Wilderness values are those large-scale entities of wilderness which comprise, in sum, wilderness character. Data collected through wilderness monitoring must support the maintenance...
Chromatographic (TLC) differentiation of grizzly bear and black bear scats
Harold D. Picton, Katherine C. Kendall
1994, Bears: Their Biology and Management (9) 497-501
While past work concluded that thin-layer chromatography (TLC) was inadequate for the separation of grizzly (Ursus arctos horribilis) and black bear (U. americanus) scats, our study found differences adequate for species separation. A key was constructed using 19 of 40 data points recorded on each(N)=356 profiles of 178) know-species...
Use of oxygen-18 and deuterium to assess the hydrology of groundwater-lake systems
David P. Krabbenhoft, Carl J. Bowser, Carol Kendall, Joel R. Gat
1994, Book chapter, Environmental chemistry of lakes and reservoirs
A thorough understanding of a lake's hydrology is essential for many lake studies. In some situations the interactions between groundwater systems and lakes are complex; in other cases the hydrology of a multilake system needs to be quantified. In such places, stable isotopes offer an alternative to the more traditional...
Gold occurrences in the Greenville 1° x 2° quadrangle, South Carolina, Georgia, and North Carolina
John P. D’Agostino, George T. Mason, Alan J.W. Zupan, Arthur H. Maybin III, Jerry M. German, Charlotte E. Abrams
1994, Miscellaneous Field Studies Map 2215-C
All of the gold mines, prospects, placers, and occurrences known in the Greenville 1° x 2° quadrangle are tabulated in this report. The table lists, in consecutive order by county (fig. 1), the map number of each feature, which is located either on the accompanying Greenville 1° x 2° quadrangle...
Bathymetry of the southwest flank of Mauna Loa Volcano, Hawaii
William W. Chadwick, James G. Moore, Christopher G. Fox
1994, Miscellaneous Field Studies Map 2255
Much of the seafloor topography in the map area is on the southwest submarine flank of the currently active Mauna Loa Volcano. The benches and blocky hills shown on the map were shaped by giant landslides that resulted from instability of the rapidly growing volcano. These landslides were imagined during...
Map showing surficial and hydrologic features in the vicinity of New Madrid, Missouri
Russell L. Wheeler, Susan Rhea
1994, Miscellaneous Field Studies Map 2264-E
This is one in a series of five seismotectonic maps of the seismically active New Madrid area in southeast Missouri and adjacent parts of Arkansas, Kentucky, and Tennessee (table 1). ). We cannot legibly show all the seismotectonic data on a single map, therefore each of the five maps in...
Map showing structure of the Mississippi Valley Graben in the vicinity of New Madrid, Missouri
Russell L. Wheeler, Susan Rhea, Richard L. Dart
1994, Miscellaneous Field Studies Map 2264-D
This is one of a series of five seismotectonic maps of the seismically active New Madrid area in southeast Missouri and adjacent parts of Arkansas, Kentucky, and Tennessee (table 1). We cannot legibly show all the seismotectonic data on a single map, therefore each of the five maps in this...
Map showing seismicity and sandblows in the vicinity of New Madrid, Missouri
B. Susan Rhea, Arthur C. Tarr, Russell L. Wheeler
1994, Miscellaneous Field Studies Map 2264-A
This is one of a series of five seismotectic maps of the seismically active New Madrid, Missouri, area (table 1; Wheeler and others, 1992). The map area centers near the sites of three great earthquakes that struck during the winter of 1811-12 (Fuller, 1912; Nuttli, 1973). These earthquakes and continuing...
Shoreline and coastal wetland variability along the west shore of Green Bay, Marinette and Oconto counties, Wisconsin
Gerald L. Shideler
1994, Miscellaneous Field Studies Map 2252
Coastal wetland ecosystems along the Great Lakes shorelines are extremely valuable natural resources. They provide numerous environmental and recreational benefits, and they serve as critical habitats for fish and wildlife populations. In general terms, wetlands can be defined as lands transitional between terrestrial and aquatic systems; they are characterized by...
Mines, prospects, and occurrences of metallic (excluding gold), pegmatite, and rare-earth mineral commodities in the Greenville 1° x 2° quadrangle, South Carolina, Georgia, and North Carolina
John P. D’Agostino, Alan Jon Zupan, Arthur H. Maybin III, Charlotte E. Abrams, Jerry M. German
1994, Miscellaneous Field Studies Map 2215-B
All of the known mines, prospects, and occurrences of metallic (excluding gold, pegmatite, and rare-earth mineral commodities for the Greenville 1° x 2° quadrangle are tabulated in this report. The table lists, in consecutive order for each county (fig. 1), the map number of each item, which correlates and locates...