U.S. Geological Survey suspended-sediment surrogate research, Part I: Call for a sediment monitoring instrument and analysis research program
John R. Gray
2003, Conference Paper, Proceedings of the Virginia Water Research Symposium 2003: Water Resource Management for the Commonwealth
No abstract available....
Total suspends data - a critical evaluation
G. Douglas Glysson, John R. Gray
2003, Conference Paper, Proceedings of the Virginia Water Research Symposium 2003: Water Resource Management for the Commonwealth
No abstract available....
Synopsis of outcomes from the Federal Interagency Workshop on Turbidity and Other Sediment Surrogates
John R. Gray, G. Douglas Glysson
2003, Conference Paper, Proceedings of the Virginia Water Research Symposium 2003: Water Resource Management for the Commonwealth
No abstract available....
U.S. Geological Survey research on surrogate measurements for suspended sediment
John R. Gray, Theodore S. Melis, Eduardo Patiño, Matthew C. Larsen, David J. Topping, Patrick P. Rasmussen, Carlos Figueroa-Alamo
2003, Conference Paper, First Interagency Conference on Research in the Watersheds: October 27-30, 2003
The U.S. Geological Survey is evaluating potentially useful surrogate instruments and methods for inferring the physical characteristics of suspended sediments. Instruments operating on bulk acoustic, bulk and digital optic, laser, and pressure-differential technologies are being tested in riverine and laboratory settings for their usefulness to Federal agencies toward providing quantifiably...
U.S. Geological Survey on-line fluvial sediment data
John R. Gray, Lisa M. Turcios
2003, Conference Paper, Proceedings of the Virginia Water Research Symposium 2003: Water Resource Management for the Commonwealth
No abstract available....
A proposed international watershed research network
W. R. Osterkamp, J. R. Gray
2003, Conference Paper, First Interagency Conference on Research in the Watersheds: October 27-30, 2003
An “International Watershed Research Network” is to be an initial project of the Sino-U. S. Centers for Soil and Water Conservation and Environmental Protection. The Network will provide a fundamental database for research personnel of the Centers, as well as of the global research community, and is viewed as an...
Recent progress in the development of a SPARROW model of sediment for the conterminous U.S.
Gregory Schwarz, Richard Smith, Richard Alexander, John Gray
2003, Conference Paper, First Interagency Conference on Research in the Watersheds: October 27-30, 2003
Suspended sediment has long been recognized as an important contaminant affecting water resources. Besides its direct role in determining water clarity, bridge scour and reservoir storage, sediment serves as a vehicle for the transport of many binding contaminants, including nutrients, trace metals, semi- volatile organic compounds, and numerous pesticides (U.S....
Evaluation of sediment-surrogate technologies for computation of suspended-sediment transport
John R. Gray, Eduardo Patiño, Patrick P. Rasmussen, Matthew C. Larsen, Theodore S. Melis, David J. Topping, Michael S. Runner, Carlos Figueroa Alamo
2003, Conference Paper, Proceedings : 1st International Yellow River Forum on River Basin Management
No abstract available....
Hazard mitigation related to water and sediment fluxes in the Yellow River basin, China, based on comparable basins of the United States
W. R. Osterkamp, J. R. Gray
2003, Conference Paper, Proceedings : 1st International Yellow River Forum on River Basin Management
The Yellow River, north-central China, and comparative rivers of the western United States, the Rio Grande and the Colorado River, derive much of their flows from melting snow at high elevations, but derive most of their se diment loads from semiarid central parts of the basins. The three rivers are...
Beach systems: sediment yield from Big Sur coastal landslides
Cheryl Hapke
2003, Report, Ecosystem observations for the MontereyBay National Marine Sanctuary 2003
No abstract available....
Soil fertility in deserts: A review on the influence of biological soil crusts and the effect of soil surface disturbance on nutrient inputs and losses
Jayne Belnap, S. Phillips, M. Duniway, Richard L. Reynolds
2003, Conference Paper, Desertification in the third millennium: Proceedings of an international conference
Sources of desert soil fertility include parent material weathering, aeolian deposition, and on-site C and N biotic fixation. While parent materials provide many soil nutrients, aeolian deposition can provide up to 75% of plant-essential nutrients including N, P, K, Mg, Na, Mn, Cu, and Fe. Soil surface biota are often...
Mineral resource of the month: fluorspar
M. Michael Miller
2003, Geotimes (2003)
Fluorspar, this month’s featured mineral resource commodity, has been widely used in steelmaking since the introduction of basic open-hearth furnace technology in the late 19th century. Its uses have grown and changed over the last 100 years, and now fluorspar’s most important markets are fluorochemicals, aluminum refining and steel. M....
Kaolin
R.L. Virta
2003, Mining Engineering (55) 34-35
Part of the 2002 industrial minerals review. Statistics on kaolin production, consumption, prices, and imports are provided. Other developments in the industry and the outlook for 2003 are detailed....
Industrial diamond
D.W. Olson
2003, Mining Engineering (55) 32-32
Statistics on the production, consumption, cost, trade, and government stockpile of natural and synthetic industrial diamond are provided. The outlook for the industrial diamond market is also considered....
Common clay and shale
R.L. Virta
2003, Mining Engineering (55) 22-23
Part of the 2002 industrial minerals review. The production, consumption, and price of shale and common clay in the U.S. during 2002 are discussed. The impact of EPA regulations on brick and structural clay product manufacturers is also outlined....
Exploration
D.R. Wilburn
2003, Mining Engineering (55) 30-42
Exploration budgets fell for a fifth successive year during 2002. These decreases reflected unsettled mineral commodity prices and the continued reluctance to invest in mineral markets....
Nitrogen
D. Kramer
2003, Mining Engineering (55) 38-39
The ammonia industry partially recovered from the effects of high natural gas prices that had closed a significant portion of the industry in 2001. Ammonia production capacity in the United States in 2002 was about 17.1 Mt (18.8 million st). About 53 percent of this capacity was centered in Louisiana,...
Mineral resource of the month: germanium
John D. Jorgenson
2003, Geotimes (2003)
Germanium is a hard, brittle semimetal that first came into use over a half-century ago as a semiconductor material in radar units and in the first transistor ever made. Most germanium is recovered as a byproduct of zinc smelting, but it has also been recovered at some copper smelters and...
Peat
S.M. Jasinski
2003, Mining Engineering (55) 39-40
Peat is a natural organic material of botanical origin and commercial significance. Peatlands are situated predominately in shallow wetland areas of the Northern Hemisphere. Commercial deposits are formed from the gradual decomposition of plant matter under anaerobic conditions over about a 5,000-year period....
Ball clay
R.L. Virta
2003, Mining Engineering (55) 15-15
Part of the 2002 industrial minerals review. Statistics on ball clay consumption, production, prices, trade, and trends are presented....
Mineral resource of the month: sulfur
Joyce A. Ober
2003, Geotimes (2003)
Since domestic sulfur production peaked at nearly 11 million metric tons in 1974, the sulfur industry has undergone dramatic change. In 1974, mined sulfur produced using the Frasch hot water method provided 8 million tons of sulfur, representing 75 percent of total elemental sulfur production. (In the Frasch process, hot...
Dimension stone
T.P. Dolley
2003, Mining Engineering (55) 25-25
Dimension stone can be defined as natural rock material quarried to obtain blocks or slabs that meet specifications as to size (width, length and thickness) and shape for architectural or engineering purposes. Color, grain texture and pattern, and surface finish of the stone are also normal requirements. Other important selection...
Pumice and pumicite
W.P. Bolen
2003, Mining Engineering (55) 42-43
The estimated domestic production of pumice and pumicite in 2002 was 950 kt (1.04 million st), a 3.2 percent increase compared with the revised total of 2001, according to the U.S. Geological Survey (USGS). The amount of pumice and pumicite sold or used in the United States was revised for...
Mineral resource of the month: perlite
Wallace Bolen
2003, Geotimes (2003)
Perlite is found in most homes, workplaces and schools. Most of the white ceiling tiles in offices and classrooms are made primarily of perlite. The soil around potted plants also has small white grains of perlite. Other than in these lightweight construction products and horticultural soil mixes, perlite is used...
A comparison of visual prey detection among species of piscivorous salmonids: Effects of light and low turbidities
Michael M. Mazur, David A. Beauchamp
2003, Environmental Biology of Fishes (67) 397-405
Differences in reaction distance to prey fish by piscivorous salmonids can alter predator–prey interactions under different visual conditions. We compared reaction distances of three piscivorous salmonids commonly found in western lakes: cutthroat trout, Oncorhynchus clarki utah, rainbow trout, O. mykiss, and the nonnative lake char, Salvelinus namaycush. Reaction distances...
