Hydrogeologic and water-quality data used to characterize the Management Systems Evaluation Area near Princeton, Minnesota, 1991
G. N. Delin, M.K. Landon, J.A. Lamb, J. L. Anderson
1994, Open-File Report 94-337
The Minnesota Management Systems Evaluation Area project is part of a multi-scale, inter-agency initiative to evaluate the effects of agricultural management systems on water quality in the midwest corn belt. The research area is located in the Anoka Sand Plain about 5 kilometers southwest of Princeton, Minnesota. The ground-water-quality monitoring...
Nonlinear-regression flow model of the Gulf Coast aquifer systems in the south-central United States
L.K. Kuiper
1994, Water-Resources Investigations Report 93-4020
A multiple-regression methodology was used to help answer questions concerning model reliability, and to calibrate a time-dependent variable-density ground-water flow model of the gulf coast aquifer systems in the south-central United States. More than 40 regression models with 2 to 31 regressions parameters are used and detailed results are presented...
A search for paleoliquefaction and evidence bearing on the recurrence behavior of the great 1811-12 New Madrid earthquakes
S.G. Wesnousky, L.M. Leffler
1994, Professional Paper 1538-H
In the winter of 1811-12, three of the largest historic earthquakes in the United States occurred near New Madrid, Missouri. Seismicity continues to the present day throughout a tightly clustered pattern of epicenters centered on the bootheel of Missouri, including parts of northeastern Arkansas, northwestern Tennessee, western Kentucky, and southern...
PRISM 8 degrees X 10 degrees North Hemisphere paleoclimate reconstruction; digital data
John A. Barron, Thomas M. Cronin, Harry J. Dowsett, Farley R. Fleming, Thomas R. Holtz Jr., Scott E. Ishman, Richard Z. Poore, Robert S. Thompson, Debra A. Willard
1994, Open-File Report 94-281
The PRISM 8?x10? data set represents several years of investigation by PRISM (Pliocene Research, Interpretation, and Synoptic Mapping) Project members. One of the goals of PRISM is to produce time-slice reconstructions of intervals of warmer than modern climate within the Pliocene Epoch. The first of these was chosen to be...
U.S. Geological Survey approved inorganic and organic methods for the analysis of water and fluvial sediment, 1954-94
Marvin J. Fishman, Jon W. Raese, Carol N. Gerlitz, Richard A. Husband
1994, Open-File Report 94-351
All inorganic and organic methods for analyzing samples of water and fluvial sediment, which have been approved for use by the U.S. Geological Survey from 1954 to the present (1994), are listed. Descriptive method names include references to published reports for easy retrieval of methodology. The year each method was...
Hydrogeology and hydrochemistry of dunes and wetlands along the southern shore of Lake Michigan, Indiana
Robert J. Shedlock, D.A. Cohen, T.E. Imbrigiotta, T.A. Thompson
1994, Open-File Report 92-139
The dunes and the wetlands along the southern shore of Lake Michigan are underlain by a complex aquifer system composed of unconsolidated glacial, lacustrine, and eolian deposits. Surficial dune, beach, and glacial lacustrine sands compose an extensive surficial aquifer. The underlying drift contains three major confined sand aquifers. Potentiometric...
Computer programs ASPAR, GSAS and ENAS and APROB for the statistical modeling of aftershock sequences and estimation of aftershock hazard
Paul Reasenberg
1994, Open-File Report 94-221
Geohydrology and water quality of stratified-drift aquifers in the lower Connecticut River basin, southwestern New Hampshire
R. B. Moore, C. D. Johnson, E.M. Douglas
1994, Water-Resources Investigations Report 92-4013
Stratified-drift aquifers discontinuously underlie 116 square miles of the Lower Connecticut River basin in southwestern New Hampshire, which has a total drainage area of 1,163 square miles. Saturated thicknesses of stratified drift within the study area are locally greater than 400 feet but generally are less. Transmissivities 1ocally exceeds 4,000...
Landslide susceptibility in the Tully Valley area, Finger Lakes region, New York
Stefan Jager, Gerald E. Wieczorek
1994, Open-File Report 94-615
As a consequence of a large landslide in the Tully Valley, Onondaga County, New York, an investigation was undertaken to determine the factors responsible for the landslide in order to develop a model for regional landslide susceptibility. The April 27, 1993 Tully Valley landslide occurred within glacial lake clays overlain...
Hydrology and geochemistry of a surface coal mine in northwestern Colorado
R.S. Williams Jr., G. M. Clark
1994, Water-Resources Investigations Report 92-4187
The hydrology and geochemistry of a reclaimed coal mine in northwestern Colorado were monitored during water years 1988 and 1989. Some data also were collected in water years 1987 and 1990. This report describes (1) the sources of hydrologic recharge to and discharge from reclaimed spoil, (2) the relative contributions...
Publications of the U.S. Geological Survey, Water Resources Division, for Puerto Rico and the U.S. Virgin Islands, 1899-1992
Ruth I. Guzman-Otero
1994, Open-File Report 93-629
A list of publications of the water-resources investigations conducted by the U.S. Geological Survey, Water Resources Division, for Puerto Rico and the U.S. Virgin Islands was compiled. The report includes publications regarding water-resources information in Puerto Rico and the U.S. Virgin Islands released from 1899 to 1992. The publications are...
Source code and ancillary data files for the MODPATH particles tracking package of the ground-water flow model MODFLOW
David W. Pollock
1994, Open-File Report 94-463
Evidence of contemporary and ancient excess fluid pressure in the New Madrid seismic zone of the Reelfoot Rift, central United States
F. A. McKeown, S. Diehl
1994, Professional Paper 1538-N
In the winter of 1811-12, three of the largest historic earthquakes in the United States occurred near New Madrid, Missouri. Seismicity continues to the present day throughout a tightly clustered pattern of epicenters centered on the bootheel of Missouri, including parts of northeastern Arkansas, northwestern Tennessee, western Kentucky, and southern...
Measuring phenological variability from satellite imagery
Bradley C. Reed, Jesslyn F. Brown, D. Vanderzee, Thomas R. Loveland, James W. Merchant, Donald O. Ohlen
1994, Journal of Vegetation Science (5) 703-714
Vegetation phenological phenomena are closely related to seasonal dynamics of the lower atmosphere and are therefore important elements in global models and vegetation monitoring. Normalized difference vegetation index (NDVI) data derived from the National Oceanic and Atmospheric Administration's Advanced Very High Resolution Radiometer (AVHRR) satellite sensor offer a means of...
Field and modeling studies of hurricane disturbance on gulf coastal forest ecosystems
Thomas W. Doyle
1994, Conference Paper, Global strategies for environmental issues : NAEP 19th Annual Conference proceedings
No abstract available...
Strontium isotope geochemistry of soil and playa deposits near Yucca Mountain, Nevada
Brian D. Marshall, Shannon A. Mahan
1994, Conference Paper, High level radioactive waste management: Proceedings of the fifth annual international conference
The isotopic composition of strontium contained in the carbonate fractions of soils provides an excellent tracer which can be used to test models for their origin. This paper reports data on surface coatings and cements, eolian sediments, playas and alluvial fan soils which help to constrain a model for formation...
American White Pelicans at the Molly Islands, in Yellowstone National Park: Twenty-two years of boom-and-bust breeding, 1966-87
Kenneth L. Diem, Bruce H. Pugesek
1994, Colonial Waterbirds (17) 130-145
Systematic monitoring of nesting and fledging of American White Pelicans (Pelecanus erythrorhynchos) breeding on the Molly Islands In Yellowstone Lake was carried on for 20 years between 1966 and 1987. The mean number of pelicans fledged during those years was 214 (±196 SD). In five of those years the number...
A synthesis of post-glacial diatom records from Lake Baikal
J. Platt Bradbury, E. Bezrukova, G. Chernyaeva, S.M. Colman, G. Khursevich, J.W. King, Ye. V. Likoshway
1994, Journal of Paleolimnology (10) 213-252
The biostratigraphy of fossil diatoms contributes important chronologic, paleolimnologic, and paleoclimatic information from Lake Baikal in southeastern Siberia. Diatoms are the dominant and best preserved microfossils in the sediments, and distinctive assemblages and species provide inter-core correlations throughout the basin at millennial to centennial scales, in both high and...
Glacial processes affecting the stratigraphy of the Antarctic Continental Shelf: Results from modeling
Uri S. ten Brink, Christopher Schneider
1994, Terra Antarctica (1) 435-436
No abstract available....
Paleozoic ophiolitic assemblages within the southern New England orogen of eastern Australia: Implications for growth of the Gondwana margin
J.C. Aitchinson, M. Clark Blake Jr., P.G. Flood, A. S. Jayko
1994, Tectonics (13) 1135-1149
Several ophiolitic assemblages occur in the southern New England orogen. The development of these rocks and their relations to the rest of the orogen have major implications for the tectonic evolution of eastern Gondwana. A major, narrow but elongate belt of Early Cambrian suprasubduction zone ophiolite crops out along and...
Biostratigraphic constraints on formation and timing of accretion in a subduction complex: An example from the Franciscan Complex of Northern California
Y. Isozaki, M. Clark Blake Jr.
1994, Journal of Geology (102) 283-296
The determination of the total age coverage of pelagic bedded chert is particularly important in studies of ancient accretionary complexes because the time span represents the minimum travel time of an oceanic plate before accretion at an island arc or continental margin. The Yolla Bolly terrane of the Franciscan Complex...
The south pole region of the moon as seen by Clementine
E.M. Shoemaker, M.S. Robinson, E. M. Eliason
1994, Science (266) 1851-1854
The Clementine mission has provided the first comprehensive set of high-resolution images of the south pole region of the moon. Within 5° of latitude of the pole, an area of an estimated 30,000 square kilometers remained in shadow during a full lunar rotation and is a promising target...
Strain accumulation along the Laguna Salada Fault, Baja California, Mexico
James C. Savage, Michael Lisowski, N.E. King, W.K. Gross
1994, Journal of Geophysical Research B: Solid Earth (99) 18109-18116
Strain accumulation observed over the 1978–1991 interval in a 30×100 km aperture trilateration network spanning the Laguna Salada fault is described by the principal strain rates 0.101±0.012 strain/yr N80°E±2° and −0.021±0.012 strain/yr N10°W±2°, extension reckoned positive. These strain accumulation rates have been corrected to remove coseismic effects of the nearby...
Joint investigations of the Middle Pliocene climate I: PRISM paleoenvironmental reconstructions
Harry J. Dowsett, Robert S. Thompson, John A. Barron, Thomas M. Cronin, Farley R. Fleming, Scott Ishman, Richard Z. Poore, Debra A. Willard, Thomas R. Holtz Jr.
1994, Global and Planetary Change (9) 169-195
The Pliocene epoch represents an important transition from a climate regime with high-frequency, low-amplitude oscillations when the Northern Hemisphere lacked substantial ice sheets, to the typical high-frequency, high-amplitude Middle to Late Pleistocene regime characterized by glacial—interglacial cycles that involve waxing and waning of...
Light-mediated predation by northern squawfish on juvenile Chinook salmon
James H. Petersen, Dena M. Gadomski
1994, Journal of Fish Biology (45) 227-242
Northern squawfish Ptychocheilus oregonensis cause significant mortality of juvenile salmon in the lower Columbia River Basin (U.S.A.). The effects of light intensity on this predator-prey interaction were examined with laboratory experiments and modelling studies. In laboratory experiments, the rate of capture of subyearling chinook salmon Oncorhynchus tshawytscha by northern squawfish...
