Spectroscopic evidence for organic diacid complexation with dissolved silica in aqueous systems—I. Oxalic acid
N.A. Marley, P. Bennett, D.R. Janecky, J.S. Gaffney
1989, Organic Geochemistry (14) 525-528
Increased solubility of quartz and mobilization in contaminated groundwater due to the complexation with dissolved organic acids has been recently proposed [Bennett and Siegel, Nature326, 684–686 (1987)]. Using laser Raman and Fourier transform infrared spectroscopies, we have examined mixed solutions of oxalic and silicic acids at near neutral pH in...
Hydrologic studies of wetlands in the northern prairie
Thomas C. Winter
1989, Book chapter, Northern prairie wetlands
No abstract available....
Solubility of jarosite solid solutions precipitated from acid mine waters, Iron Mountain, California
Charles N. Alpers, D. Kirk Nordstrom, J.W. Ball
1989, Science Geological Bulletin (42) 281-298
Because of the common occurrence of 15 to 25 mole percent hydronium substitution on the alkali site in jarosites, it is necessary to consider the hydronium content of jarosites in any attempt at rigorous evaluation of jarosite solubility or of the saturation state of natural waters with respect to jarosite....
Discussion of "Influence of temperature on oxygen transfer" by Allen C. Chao, David S. Chang, Charles Smallwood, Jr., and William S. Galler (August, 1987, Vol. 113, No. 4)
R.E. Rathburn
1989, Journal of Environmental Engineering (115) 868-869
No abstract available....
Removing volatile contaminants from the unsaturated zone by inducing advective air-phase transport
A. L. Baehr, G.E. Hoag, M.C. Marley
1989, Journal of Contaminant Hydrology (4) 1-26
Organic liquids inadvertently spilled and then distributed in the unsaturated zone can pose a long-term threat to ground water. Many of these substances have significant volatility, and thereby establish a premise for contaminant removal from the unsaturated zone by inducing advective air-phase transport...
Geohydrology of the Laura fresh-water lens, Majuro atoll: A hydrogeochemical approach
S. S. Anthony, F.L. Peterson, F.T. MacKenzie, S. N. Hamlin
1989, Geological Society of America Bulletin (101) 1066-1075
In small limestone islands, the depositional history and subsequent chemical interactions between ground water and the aquifer host rock play critical roles in the occurrence, movement, and chemical quality of ground water. The hydrogeochemistry of the Laura fresh-water lens, Majuro atoll, Marshall Islands, is an example of these relations.Laura is...
Preliminary map of upper Eocene to Holocene volcanic and related rocks of the Cascade Range, Oregon
David R. Sherrod, James G. Smith
1989, Open-File Report 89-14
Since 1979 the Geothermal Research Program of the U.S. Geological Survey has carried out multidisciplinary research in the Cascade Range. The goal of this research is to understand the geology, tectonics, and hydrology of the Cascades in order to characterize and quantify geothermal resource potential. A major goal of the...
100 years of sedimentation study by the USGS
G. Douglas Glysson
1989, Conference Paper
On January 15, 1889, the U.S. Geological Survey began collecting sediment data on the Rio Grande at Embudo, New Mexico. During the past 100 years the U.S. Geological Survey's Water Resources Division (WRD) has collected daily sediment data at more than 1,200 sites. Projects have addressed the problems associated with...
Transport of microspheres and indigenous bacteria through a sandy aquifer: Results of natural- and forced-gradient tracer experiments
R.W. Harvey, L.H. George, R. L. Smith, D.R. LeBlanc
1989, Environmental Science & Technology (23) 51-56
Transport of indigenous bacteria through sandy aquifer sediments was investigated in forced- and natural-gradient tracer teste. A diverse population of bacteria was collected and concentrated from groundwater at the site, stained with a DNA-specific fluorochrome, and injected back into the aquifer. Included with the injectate were a conservative tracer (Br-...
Predictors of the peak width for networks with exponential links
B.M. Troutman, M.R. Karlinger
1989, Stochastic Hydrology and Hydraulics (3) 1-16
We investigate optimal predictors of the peak (S) and distance to peak (T) of the width function of drainage networks under the assumption that the networks are topologically random with independent and exponentially distributed link lengths. Analytical results are derived using the fact that, under these assumptions, the width function...
A comparison of aquatic macrophyte communities in regulated and non-regulated lakes, Voyageurs National Park and Boundary Waters Canoe Area, Minnesota
James E. Meeker, Douglas A. Wilcox
1989, Research/Resources Management MWR-16
The effects of water-level regulation on aquatic macrophyte communities, individual plant species, and potential faunal habitat were investigated in a study of two regulated lakes and an unregulated lake in northern Minnesota. Water levels in Rainy Lake and Namakan Reservoir in Voyageurs National Park are regulated by dams. Natural annual...
Extraction of terrain features from digital elevation models
Curtis V. Price, David M. Wolock, Mark A. Ayers
1989, Conference Paper
Digital elevation models (DEMs) are being used to determine variable inputs for hydrologic models in the Delaware River basin. Recently developed software for analysis of DEMs has been applied to watershed and streamline delineation. The results compare favorably with similar delineations taken from topographic maps. Additionally, output from this software...
A reinterpretation of the δDH2O of inclusion fluids in contemporaneous quartz and sphalerite, Creede mining district, Colorodo: a generic problem for shallow orebodies?
Nora K. Foley, Philip M. Bethke, Robert O. Rye
1989, Economic Geology (84) 1966-1977
Water extracted from fluid inclusions in quartz from shallow epithermal ore deposits often has a hydrogen isotope composition (δD) different from that of water extracted from inclusions in associated minerals. This difference is usually attributed to the involvement of primary fluids from multiple sources. Isotopic and homogenization and freezing temperature...
The use of total lake-surface area as an indicator of climatic change: Examples from the Lahontan basin
L. V. Benson, Frederick L. Paillet
1989, Quaternary Research (32) 262-275
Variation in the size of lakes in the Lahontan basin is topographically constrained. River diversion also has played a major role in regulating lake size in Lahontan subbasins. The proper gage of lake response to change in the hydrologic balance is neither lake depth (level) nor lake volume but instead...
Coprecipitation and redox reactions of manganese oxides with copper and nickel
J.D. Hem, Carol J. Lind, C. E. Roberson
1989, Geochimica et Cosmochimica Acta (53) 2811-2822
Open-system, continuous-titration experiments have been done in which a slow flux of ∼0.02 molar solution of Mn2+ chloride, nitrate, or perchlorate with Cu2+ or Ni2+ in lesser concentrations was introduced into an aerated reactor solution held at constant temperature and at constant pH by a pH-stat...
Organic markers as source discriminants and sediment transport indicators in south San Francisco Bay, California
F. D. Hostettler, J. B. Rapp, K.A. Kvenvolden, N L. Samuel
1989, Geochimica et Cosmochimica Acta (53) 1563-1576
Sediment samples from nearshore sites in south San Francisco Bay and from streams flowing into that section of the Bay have been characterized in terms of their content of biogenic and anthropogenic molecular marker compounds. The distributions, input sources, and applicability of these compounds in determining sediment movement are discussed....
Studies of geology and hydrology in the Basin and Range Province, southwestern United States, for isolation of high-level radioactive waste: Characterization of the Death Valley region, Nevada and California
Marion S. Bedinger, K. A. Sargent, W. H. Langer
1989, Professional Paper 1370-F
No abstract available....
Interrelationships among hydrologic-budget components of a northern Wisconsin seepage lake and implications for acid-deposition modeling
Dennis A. Wentz, William J. Rose
1989, Archives of Environmental Contamination and Toxicology (18) 147-155
Components of the hydrologic budget for a northern Wisconsin seepage lake were analyzed by applying correlation and regression techniques to monthly data. Analyses for the 1981–83 water years revealed a statistically significant, direct relationship between storage change and precipitation-evaporation balance. Ground-water outflow was negatively correlated with ground-water inflow, and this...
A comparison of instrumental dewatering methods for the separation and concentration of suspended sediment for subsequent trace element analysis
A. J. Horowitz, K. A. Elrick, R.C. Hooper
1989, Hydrological Processes (3) 163-184
A comparison involving both field and laboratory trials was performed to evaluate the utility of two continuous-flow centrifuges and a tangential-flow filtration system for dewatering suspended sediments for subsequent trace element analysis. Although recovery efficiencies for the various devices differ, the analytical results from the...
Appalachian Piedmont landscapes from the Permian to the Holocene
E.T. Cleaves
1989, Geomorphology (2) 159-179
Between the Potomac and Susquehanna Rivers and from the Blue Ridge to the Fall Zone, landscapes of the Piedmont are illustrated for times in the Holocene, Late Wisconsin, Early Miocene, Early Cretaceous, Late Triassic, and Permian. Landscape evolution took place in tectonic settings marked by major plate collisions (Permian), arching...
Lognormal kriging for the assessment of reliability in groundwater quality control observation networks
L. Candela, Ricardo A. Olea, E. Custodio
1988, Journal of Hydrology (103) 67-84
Groundwater quality observation networks are examples of discontinuous sampling on variables presenting spatial continuity and highly skewed frequency distributions. Anywhere in the aquifer, lognormal kriging provides estimates of the variable being sampled and a standard error of the estimate. The average and the maximum standard error within the network can...
Experimental studies in stream-aquifer interaction along the Arkansas River in Central Kansas - Field testing and analysis
M. Sophocleous, M.A. Townsend, L.D. Vogler, T.J. McClain, E.T. Marks, G.R. Coble
1988, Journal of Hydrology (98) 249-273
During the last several years, streamflows of a number of Kansas streams have been reduced as a result of groundwater declines. In order to better understand and quantify stream-aquifer interrelationships, an eight-day comprehensive stream-aquifer pumping test, followed by recovery monitoring, was conducted along the Arkansas River near Great Bend, Kansas....
Pumping tests in nonuniform aquifers - The radially symmetric case
J.J. Butler Jr.
1988, Journal of Hydrology (101) 15-30
Traditionally, pumping-test-analysis methodology has been limited to applications involving aquifers whose properties are assumed uniform in space. This work attempts to assess the applicability of analytical methodology to a broader class of units with spatially varying properties. An examination of flow behavior in a simple configuration consisting of pumping from...
National water summary 1986: Hydrologic events and ground-water quality
United States Geological Survey
1988, Water Supply Paper 2325
Ground water is one of the most important natural resources of the United States and degradation of its quality could have a major effect on the welfare of the Nation. Currently (1985), ground water is the source of drinking water for 53 percent of the Nation's population and for more...
U.S. Geological Survey ground-water studies in Nevada
M. D. Dettinger, A. S. Van Denburgh
1988, Open-File Report 88-119
Groundwater is an important natural resource in Nevada. In 1985, groundwater provided 24% of the total water withdrawn, and supplied about 40% of the State 's population. Public supply and self-supplied domestic use accounted for about 12% of the groundwater withdrawn, and self-supplied industrial and mining use was about 3%....
