Neoproterozoic(?) to Pennsylvanian inner-shelf, miogeoclinal strata in Sierra Agua Verde, Sonora, Mexico
John H. Stewart, Forrest G. Poole, Anita G. Harris, John E. Repetski, Bruce R. Wardlaw, Bernard L. Mamet, J. M. Morales-Ramirez
1999, Revista Mexicana de Ciencias Geológicas (16) 35-62
No abstract available....
Coal mining in the 21st century: Yampa coal field, northwest Colorado
Michael E. Brownfield, Edward A. Johnson, Ronald H. Affolter, Charles E. Barker
1999, Book chapter, Colorado and adjacent areas
Fossils, rocks, and time
Lucy E. Edwards, John Pojeta Jr.
1999, Report
We study our Earth for many reasons: to find water to drink or oil to run our cars or coal to heat our homes, to know where to expect earthquakes or landslides or floods, and to try to understand our natural surroundings. Earth is constantly changing--nothing on its surface is...
Geology of the Loess Hills, Iowa
1999, Report
Many Americans think of Iowa as having little topographic variation. However, in westernmost Iowa the Loess Hills rise 200 feet above the flat plains forming a narrow band running north-south 200 miles along the Missouri River. The steep angles and sharp bluffs on the western side of the Loess Hills...
Neogene and Quaternary quantitative palynostratigraphy and paleoclimatology from sections in Yukon and adjacent Northwest Territories and Alaska
J. M. White, Thomas A. Ager, David P. Adam, E. B. Leopold, G. Liu, H. Jette, C. E. Schweger
A. R. Sweet, D. H. McNeil, editor(s)
1999, Bulletin 543
quantitative pollen and spore zonation for the Neogene and Quaternary of Yukon, western Northwest Territories and central and northern Alaska has been assembled from seven sections and one borehole. The palynological spectra from 163 samples from these sections were grouped and averaged within the groups to produce twenty-one composite spectra...
An overview of the status of industrial minerals in the United States
Aldo F. Barsotti
1999, Book, Proceedings of the 34th Forum on the Geology of Industrial Minerals, 1998
The production and consumption of industrial minerals in the United States traditionally have played important roles in mining and in the supply of the bulk of basic raw materials to the economy. This diverse group of minerals extracted and consumed by a variety of industries accounts, on a weight and...
The influence of surface and shallow subsurface soil processes on wetland elevation: a synthesis
Donald R. Cahoon, J.W. Day Jr., D.J. Reed
1999, Current Topics in Wetland Biogeochemistry (3) 72-88
No abstract available....
Environmental characteristics of clays and clay mineral deposits
Nora K. Foley
1999, Report
Clays and clay minerals have been mined since the Stone Age; today they are among the most important minerals used by manufacturing and environmental industries. The U.S. Geological Survey (USGS) supports studies of the properties of clays, the mechanisms of clay formation, and the behavior of clays during weathering. These...
Geology for a changing world: Summary of USGS Circular 1172: A science strategy for the Geologic Division of the U.S. Geological Survey, 2000-2010
P. Patrick Leahy
1999, Report
The U.S. Geological Survey (USGS) provides the Nation with reliable and timely earth science information that is used to minimize loss of life and property from natural disasters; to manage energy, mineral, water, and biological resources; to enhance and protect the quality of life; and to contribute to wise economic...
200,000 years of climate change recorded in eolian sediments of the High Plains of eastern Colorado and western Nebraska
Daniel R. Muhs, James B. Swinehart, David B. Loope, John N. Aleinikoff, Josh Been
David R. Lageson, Alan Lester, Bruce Trudgill, editor(s)
1999, Book chapter, Colorado and adjacent areas
Loess and eolian sand cover vast areas of the western Great Plains of Nebraska, Kansas and Colorado (Fig. 1). In recent studies of Quaternary climate change, there has been a renewed interest in loess and eolian sand. Much of the attention now given to loess stems from new studies of...
Linkage between grain-size evolution and sediment depletion during Colorado River floods
David J. Topping, David M. Rubin, Jonathan M. Nelson, Paul J. Kinzel III, James P. Bennett
Robert H. Webb, John C. Schmidt, G. Richard Marzolf, Richard A. Valdez, editor(s)
1999, Book chapter, The controlled flood in Grand Canyon
No abstract available....
Silica
Wallace P. Bolen
1999, American Ceramic Society Bulletin (78) 141-143
Design approaches in quarrying and pit-mining reclamation
Belinda F. Arbogast
1999, Book, Proceedings of the 34th Forum on the Geology of Industrial Minerals, 1998
Reclaimed mine sites have been evaluated so that the public, industry, and land planners may recognize there are innovative designs available for consideration and use. People tend to see cropland, range, and road cuts as a necessary part of their everyday life, not as disturbed areas despite their high visibility....
Entrainment and transport of cobbles and boulders from debris fans
James E. Pizzuto, Robert Webb, Peter G. Griffiths, John G. Elliott, Theodore S. Melis
1999, Book chapter, The controlled flood in Grand Canyon
No abstract available....
The use of heat as a tracer to estimate recharge beneath streams and artificial recharge ponds
James Constantz, Richard G. Niswonger, A.E. Stewart
1999, Book chapter, Artificial recharge of groundwater
No abstract available. ...
Reworking of aggraded debris fans
Robert Webb, Theodore S. Melis, Peter G. Griffiths, John G. Elliott
1999, Book chapter, The controlled flood in Grand Canyon
No abstract available....
The geochemistry of acid mine waters
D. Kirk Nordstrom, Charles N. Alpers
Geoffrey S. Plumlee, M.J. Logsdon, editor(s)
1999, Book chapter, The environmental geochemistry of mineral deposits: Part A: Processes, methods and health issues
No abstract available....
Sulfates
D. Kirk Nordstrom
1999, Book chapter, Encyclopedia of environmental science
No abstract available....
Pachydiscus (Pachydiscus) hornbyense Jones, 1963, and P. (P.) catarinae (Anderson & Hanna, 1935) (Cretaceous, Campanian; Ammonoidea), Pacific Realm marker fossils in the Western Interior Seaway of North America
W. J. Kennedy, W. A. Cobban
1999, Bulletin de l'Institut Royal des Sciences Naturelles de Belgique: Sciences de la Terre (69, suppl.) 119-127
No abstract available....
Records of millennial-scale climate change from the Great Basin of the Western United States
Larry Benson
Peter U. Clark, Robert S. Webb, Lloyd D. Keigwin, editor(s)
1999, Book chapter, Mechanisms of global climate change at millennial time scales
Workgroup V synopsis: constructed wetlands as a risk mitigation alternative
John H. Rodgers Jr., Gary W. Dickson, Tom Dillon, Philip B. Dorn, Janis E. Farmer, Robert A. Gearheart, Jerry F. Hall, Beverly McFarland, Marcia K. Nelson, Peter Nix, Curtis J. Richardson, Dennis P. Tierney
Michael A. Lewis, Thomas W. La Point, Foster L. Mayer, B. T. Walton, Rebecca L. Powell, C.H. Ward, Marcia K. Nelson, Stephen J. Klaine, Mary G. Henry, Gary W. Dickson, editor(s)
1999, Book, Ecotoxicology and risk assessment for wetlands: proceedings from the SETAC Pellston Workshop on Ecotoxicology and Risk Assessment for Wetlands, 30 July-3 August 1995, Fairmont Hot Springs, Anaconda, Montana
Use of 13C NMR and FTIR for elucidation of degradation pathways during senescence and litter decomposition of Aspen leaves
Robert L. Wershaw, J.A. Leenheer, K. R. Kennedy
G. Davis, E.A. Ghabbour, editor(s)
1999, Book chapter, Understanding humic substances: Advanced methods, properties and applications
No abstract available. ...
Science into policy: water in the public realm: proceedings, specialty conference, June 30-July 2, 1999, Bozeman, Montana
Eloise Kendy, editor(s)
1999, American Water Resources Association Technical Publication Series 99-2
Assessment of landscape correlates of Eastern hemlock decline due to hemlock woolly adelgid
John Young, Craig Snyder, James Akerson, Gary Hunt
K.A. McManus, K.S. Shields, D.R. Souto, editor(s)
1999, Report, Proceedings, Symposium on sustainable management of hemlock ecosystems in Eastern North America
Eastern hemlock (Tsuga canadensis) is in decline throughout its range in the eastern US due to infestation by an exotic insect pest, the hemlock woolly adelgid (Adelges tsugae). In Shenandoah National Park, the hemlock woolly adelgid (HWA) rapidly killed many stands of hemlock after first appearing in the late-1980’s, while having only minor impact in other...
Consilience and conciliation, the need for less human impact and more humane impact
D. Kirk Nordstrom
1999, Book chapter
No abstract available. ...
