Appendix 1: Analytical methods and errors
T. H. Druitt, L. Edwards, R. M. Mellors, D. M. Pyle, R.S.J. Sparks, Marvin A. Lanphere, M. Davies, B. Barreirio
1999, Geological Society, London, Memoirs (19) 134-137
Thirty eight K-Ar and eight 40Ar/39Ar high-precision age determinations were made at the US Geological Survey, Menlo Park, on a total of 22 rocks from the entire volcanic field. Duplicate or triplicate determinations were carried out on 14 samples in order to improve analytical precision. All ages were measured on...
Evaluation of weights of evidence to predict epithermal-gold deposits in the Great Basin of the western United States
Gary L. Raines
1999, Natural Resources Research (8) 257-276
The weights-of-evidence method provides a simple approach to the integration of diverse geologic information. The application addressed is to construct a model that predicts the locations of epithermal-gold mineral deposits in the Great Basin of the western United States. Weights of evidence is a data-driven method requiring known deposits and...
A comparison of the weights-of-evidence method and probabilistic neural networks
Donald A. Singer, Ryoichi Kouda
1999, Natural Resources Research (8) 287-298
The need to integrate large quantities of digital geoscience information to classify locations as mineral deposits or nondeposits has been met by the weights-of-evidence method in many situations. Widespread selection of this method may be more the result of its ease of use and interpretation rather than comparisons with alternative...
Hydrolysis of tert-butyl formate: Kinetics, products, and implications for the environmental impact of methyl tert-butyl ether
Clinton D. Church, James F. Pankow, Paul G. Tratnyek
1999, Environmental Toxicology and Chemistry (18) 2789-2796
Asessing the environmental fate of methyl tert-butyl ether (MTBE) has become a subject of renewed interest because of the large quantities of this compound that are being used as an oxygenated additive in gasoline. Various studies on the fate of MTBE have shown that it can be degraded to tert-butyl...
An interpretation of the aeromagnetic and gravity data and derivative maps of the Craig and Dixon Entrance 1-degree by 3-degree quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles, Southeastern Alaska
J. C. Wynn, R.P. Kucks, D. J. Grybeck
1999, Open-File Report 99-316
Quantitative paleoclimatic reconstructions from late Pleistocene plant macrofossils of the Yucca Mountain region
R.S. Thompson, K. H. Anderson, P. J. Bartlein
1999, Open-File Report 99-338
Plant macrofossil assemblages recovered from packrat (Neotoma) middens of late Pleistocene age from the present-day Mojave Desert of southern Nevada contain plant species that today live at higher elevations and/or farther north than the midden collection sites. Previous reconstructions of late Pleistocene climates from packrat midden assemblages in this region...
Digital analytical data from mineral resource assessments of national forest lands in Washington
D. E. Boleneus, D. W. Chase
1999, Open-File Report 99-344-B
No abstract available. ...
Wide-angle seismic recordings from the 1998 Seismic Hazards Investigation of Puget Sound (SHIPS), western Washington and British Columbia
Thomas M. Brocher, Tom Parsons, Ken C. Creager, Robert S. Crosson, Neill P. Symons, George D. Spence, Barry C. Zelt, Philip T.C. Hammer, Roy D. Hyndman, David C. Mosher, Anne M. Trehu, Kate C. Miller, Uri S. ten Brink, Michael A. Fisher, Thomas L. Pratt, Marcos G. Alvarez, Bruce C. Beaudoin, Keith E. Louden, Craig S. Weaver
1999, Open-File Report 99-314
This report describes the acquisition and processing of deep-crustal wide-angle seismic reflection and refraction data obtained in the vicinity of Puget Lowland, the Strait of Juan de Fuca, and Georgia Strait, western Washington and southwestern British Columbia, in March 1998 during the Seismic Hazards Investigation of Puget Sound (SHIPS). As...
Hydrologic data for water years 1978-97 used in daily flow-routing and river-operations models for the upper Carson River Basin, California and Nevada
G. W. Hess
1999, Open-File Report 99-256
No abstract available....
Digital analytical data from mineral resource assessments of national forest lands in Washington
D. E. Boleneus, D. W. Chase
1999, Open-File Report 99-344-A
Extensive reconnaissance assessments of the mineral resource potential of the Colville and Okanogan National Forests in northeastern Washington were conducted during 1979-1982 by a private consultant A.R. Grant, under contract with the U.S. Department of Agriculture, Forest Service. These forests occupy large parts of Pend Oreille, Stevens, Ferry, and Okanogan...
Mississippi Basin Carbon Project; upland soil database for sites in Yazoo Basin, northern Mississippi
J.W. Harden, T. L. Fries, T.G. Huntington
1999, Open-File Report 99-319
The conversion of land from its native state to an agricultural use commonly results in a significant loss of soil carbon (Mann, 1985; Davidson and Ackerman, 1993). Globally, this loss is estimated to account for as much as 1/3 of the net CO2 emissions for the period of 1850 to...
U.S. Geological Survey middle Rio Grande basin study; proceedings of the third annual workshop, Albuquerque, New Mexico, February 24-25, 1999
James R. Bartolino
1999, Open-File Report 99-203
Approximately 40 percent (about 600,000 people) of the total population of New Mexico lives within the Middle Rio Grande Basin, which includes the City of Albuquerque. Ongoing analyses of the central portion of the Middle Rio Grande Basin by the U.S. Geological Survey (USGS) in cooperation with the City of Albuquerque and...
SEGY to ASCII: Conversion and Plotting Program
Mark R. Goldman
1999, Open-File Report 99-126
This report documents a computer program to convert standard 4 byte, IBM floating point SEGY files to ASCII xyz format. The program then optionally plots the seismic data using the GMT plotting package. The material for this publication is contained in a standard tar file (of99-126.tar) that is uncompressed and...
Sediment magnetic data and thermomagnetic determinations of Holcene and Pleistocene soils and their parent materials from Zanesville, Ohio; contributions to Quaternary paleoclimate studies of Midcontinent loess deposits
S. S. Harlan, J. G. Rosenbaum, E.M. Rutledge, D.R. Muhs
1999, Open-File Report 99-516
Assessment of landslide hazards in Kaluanui and Maakua gulches, Oahu, Hawaii, following the 9 May 1999 Sacred Falls landslide
R.W. Jibson, R.L. Baum
1999, Open-File Report 99-364
One of the injured hikers later died of injuries received in the landslide. Governor Ben Cayetano of Hawaii ordered that the park be closed due to concern about continuing landslide hazard near the falls. Subsequently, Bill Meyer, District Chief for the U.S. Geological Survey (USGS) Water Resources Division in Honolulu...
Evaluation of factors that influence estimated zones of transport for six municipal wells in Clark County, Washington
L.L. Orzol, Margot Truini
1999, Water-Resources Investigations Report 97-4224
A ground-water flow model was used in conjunction with particle tracking to estimate zones of transport for six municipal well sites in Clark County, Washington. A zone of transport for a well is a three-dimensional volume within a ground-water system that contains all of the ground water that will discharge...
Metabolic response to air temperature and wind in day-old mallards and a standard operative temperature scale
G.S. Bakken, P.S. Reynolds, K.P. Kenow, C. E. Korschgen, A.F. Boysen
1999, Physiological and Biochemical Zoology (72) 656-665
Most duckling mortality occurs during the week following hatching and is often associated with cold, windy, wet weather and scattering of the brood. We estimated the thermoregulatory demands imposed by cold, windy weather on isolated 1‐d‐old mallard (Anas platyrhynchos) ducklings resting in cover. We measured O2 consumption and evaporative water loss...
Environmental characteristics and water quality of hydrologic benchmark network stations in the Midwestern United States, 1963-95
M. Alisa Mast, John T. Turk
1999, Circular 1173-B
This report describes the environmental characteristics and water quality at 14 benchmark basins in the Midwestern United States. The information in this report was compiled to aid in the application and interpretation of historical water-quality data collected by the U.S. Geological Survey Hydrologic Benchmark Network program. The streams discussed in...
Global Land Information System
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 069-99
The Global Land Information System (GLIS) is a World Wide Web-based query tool developed by the U.S. Geological Survey (USGS) to provide data and information about the Earth's land surface. Examples of holdings available through the GLIS include cartographic data, topographic data, soils data, aerial photographs, and satellite images from...
Molecular and immunogenetic analysis of major histocompatibility haplotypes in northern bobwhite enable direct identification of corresponding haplotypes in an endangered subspecies, the masked bobwhite
B. M. Drake, R.M. Goto, M.M. Miller, G.F. Gee, W.E. Briles
1999, Zoo Biology (18) 279-294
The major histocompatibility complex (MHC) is a group of genetic loci coding for haplotypes that have been associated with fitness traits in mammals and birds. Such associations suggest that MHC diversity may be an indicator of overall genetic fitness of endangered or threatened species. The MHC haplotypes...
A weighted least-squares approach to temporal NDVI smoothing
D. Swets, Bradley C. Reed, James Rowland, S.E. Marko
1999, Conference Paper
Satellite imagery provides a unique vantage point for observing seasonal dynamics of the landscape that have implications for global change issues. An objective evaluation of surface conditions may be performed using the normalized difference vegetation index (NDVI) derived from National Oceanic and Atmospheric Administration advanced very high resolution radiometer data....
Carbon cycling in boreal wetlands: A comparison of three approaches
Susan E. Trumbore, Jill Bubier, Jennifer W. Harden, Patrick M. Crill
1999, Journal of Geophysical Research - Atmospheres (104) 27673-27682
Three independent methods were used to measure net ecosystem production (NEP) in four wetlands near Thompson, Manitoba, Canada. The first method calculated NEP by subtracting heterotrophic respiration from net primary productivity, using both measurements and estimates derived from the literature. The second method used radiocarbon data from cores to derive...
An assessment of seismic monitoring in the United States; requirement for an Advanced National Seismic System
Water Resources Division, U.S. Geological Survey
1999, Circular 1188
This report assesses the status, needs, and associated costs of seismic monitoring in the United States. It sets down the requirement for an effective, national seismic monitoring strategy and an advanced system linking national, regional, and urban monitoring networks. Modernized seismic monitoring can provide alerts of imminent strong earthquake shaking;...
National Elevation Dataset
Water Resources Division, U.S. Geological Survey
1999, Fact Sheet 148-99
The National Elevation Dataset (NED) is a new raster product assembled by the U.S. Geological Survey (USGS). The NED is designed to provide national elevation data in a seamless form with a consistent datum, elevation unit, and projection. Data corrections were made in the NED assembly process to minimize artifacts,...
Ground-water conditions in Georgia, 1998
Alan M. Cressler
1999, Open-File Report 99-204
Ground-water conditions in Georgia during 1998 and for the period of record were evaluated using data from U.S. Geological Survey ground-water-level and ground-water-quality monitoring networks. Data for 1998 included in this report are from continuous water-level records from 130 wells and chloride analyses from 14 wells. Data from one well...
