Northern Fulmars (Fulmar glacialis) fed on ice-associated macrofauna (probably gammarid amphipods) and pinniped offal concentrated by convergent flow at an eddy boundary near Northwest Cape on St. Lawrence Island, Alaska. The eddy was anticyclonic, measured approximately 1.5 by 2.25 km, and was generated by nearshore streaming induced by the cape’s topography during lesser flood stage of the tidal cycle. These favorable feeding conditions persisted only for a few hours on a single day (22 May 1987). Like man-assisted scavenging, this observation suggests that natural feeding by fulmars can be highly opportunistic and time-dependent.
","language":"English","publisher":"The Waterbird Society","doi":"10.2307/1521017","usgsCitation":"Haney, J.C., 1988, Foraging by northern fulmars (Fulmarus glacialis) at a nearshore, anticyclonic tidal eddy in the northern Bering Sea, Alaska: Colonial Waterbirds, v. 11, p. 318-321, https://doi.org/10.2307/1521017.","productDescription":"4 p.","startPage":"318","endPage":"321","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":335418,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Bering Sea, Northwest Cape, St. Lawrence Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -174.5068359375,\n 62.186013857194226\n ],\n [\n -164.4873046875,\n 62.186013857194226\n ],\n [\n -164.4873046875,\n 67.1016555307692\n ],\n [\n -174.5068359375,\n 67.1016555307692\n ],\n [\n -174.5068359375,\n 62.186013857194226\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a4254ae4b0c825128ad4db","contributors":{"authors":[{"text":"Haney, J. Christopher","contributorId":48043,"corporation":false,"usgs":true,"family":"Haney","given":"J.","email":"","middleInitial":"Christopher","affiliations":[{"id":6654,"text":"USFWS","active":true,"usgs":false}],"preferred":false,"id":668870,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70013828,"text":"70013828 - 1988 - Assessment of the analytical capabilities of inductively coupled plasma-mass spectrometry","interactions":[],"lastModifiedDate":"2024-05-13T16:05:35.10148","indexId":"70013828","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2444,"text":"Journal of Research of the National Bureau of Standards","active":true,"publicationSubtype":{"id":10}},"title":"Assessment of the analytical capabilities of inductively coupled plasma-mass spectrometry","docAbstract":"A thorough assessment of the analytical capabilities of inductively coupled plasma-mass spectrometry was conducted for selected analytes of importance in water quality applications and hydrologic research. A multielement calibration curve technique was designed to produce accurate and precise results in analysis times of approximately one minute. The suite of elements included Al, As, B, Ba, Be, Cd, Co, Cr, Cu, Hg, Li, Mn, Mo, Ni, Pb, Se, Sr, V, and Zn. The effects of sample matrix composition on the accuracy of the determinations showed that matrix elements (such as Na, Ca, Mg, and K) that may be present in natural water samples at concentration levels greater than 50 mg/L resulted in as much as a 10% suppression in ion current for analyte elements. Operational detection limits are presented.","language":"English","publisher":"National Institute of Standards and Technology","doi":"10.6028/jres.093.107","issn":"01601741","usgsCitation":"Taylor, H.E., and Garbarino, J.R., 1988, Assessment of the analytical capabilities of inductively coupled plasma-mass spectrometry: Journal of Research of the National Bureau of Standards, v. 93, no. 3, p. 433-435, https://doi.org/10.6028/jres.093.107.","productDescription":"3 p.","startPage":"433","endPage":"435","numberOfPages":"3","costCenters":[],"links":[{"id":487161,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"http://doi.org/10.6028/jres.093.107","text":"Publisher Index Page"},{"id":220002,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ee61e4b0c8380cd49d23","contributors":{"authors":[{"text":"Taylor, Howard E. hetaylor@usgs.gov","contributorId":1551,"corporation":false,"usgs":true,"family":"Taylor","given":"Howard","email":"hetaylor@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":366955,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Garbarino, John R. jrgarb@usgs.gov","contributorId":2189,"corporation":false,"usgs":true,"family":"Garbarino","given":"John","email":"jrgarb@usgs.gov","middleInitial":"R.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"preferred":true,"id":366956,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014442,"text":"70014442 - 1988 - Using exogenous variables in testing for monotonic trends in hydrologic time series","interactions":[],"lastModifiedDate":"2018-02-21T11:06:06","indexId":"70014442","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Using exogenous variables in testing for monotonic trends in hydrologic time series","docAbstract":"One approach that has been used in performing a nonparametric test for monotonic trend in a hydrologic time series consists of a two-stage analysis. First, a regression equation is estimated for the variable being tested as a function of an exogenous variable. A nonparametric trend test such as the Kendall test is then performed on the residuals from the equation. By analogy to stagewise regression and through Monte Carlo experiments, it is demonstrated that this approach will tend to underestimate the magnitude of the trend and to result in some loss in power as a result of ignoring the interaction between the exogenous variable and time. An alternative approach, referred to as the adjusted variable Kendall test, is demonstrated to generally have increased statistical power and to provide more reliable estimates of the trend slope. In addition, the utility of including an exogenous variable in a trend test is examined under selected conditions.
Variations in streamwater temperature at the outlet of a 41-ha forested watershed at Panola Mountain in the Georgia Piedmont indicate that the initial rapid hydrologic response is caused by a combination of groundwater discharge and channel interception of rainwater. A storm in May 1986 caused a rapid increase in discharge that was accompanied by a decrease in streamwater temperature and a rise in the water table level adjacent to the stream. The higher water table provided the hydraulic gradient necessary to increase the discharge of colder groundwater to the stream. Storms that occurred under very dry antecedent conditions in July 1986 and June 1987 caused a rapid hydrologic response but no change in water table level, indicating the response was caused by channel interception of rainwater. This conclusion was supported by increases in streamwater temperature in the June storm and by chemical changes in the July storm. When rainfall is sufficient, flow in the ephemeral part of the stream in the catchment headwaters generates a second and larger discharge peak that reflects the chemistry and temperature of runoff from a 3-ha granite outcrop in the headwaters; sulfate concentration and temperature increase and alkalinity decreases relative to prestorm conditions. The initial response, however, results from channel interception and groundwater discharge. Rapid rises in the water table level during some storms suggest that macropore flow may play a major role in the hydrologic response of the watershed to rainstorms.
","language":"English","publisher":"Elsevier","doi":"10.1016/0169-7722(88)90040-X","issn":"01697722","usgsCitation":"Shanley, J.B., and Peters, N., 1988, Preliminary observations of streamflow generation during storms in a forested Piedmont watershed using temperature as a tracer: Journal of Contaminant Hydrology, v. 3, no. 2-4, p. 349-365, https://doi.org/10.1016/0169-7722(88)90040-X.","productDescription":"17 p.","startPage":"349","endPage":"365","numberOfPages":"17","costCenters":[],"links":[{"id":225708,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"2-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8936e4b0c8380cd7dd41","contributors":{"authors":[{"text":"Shanley, J. B.","contributorId":52226,"corporation":false,"usgs":true,"family":"Shanley","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":368424,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peters, N.E.","contributorId":33332,"corporation":false,"usgs":true,"family":"Peters","given":"N.E.","email":"","affiliations":[],"preferred":false,"id":368423,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014445,"text":"70014445 - 1988 - Deuterium in interstitial water from deep-sea cores","interactions":[],"lastModifiedDate":"2024-06-05T15:02:47.571472","indexId":"70014445","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":6453,"text":"Journal of Geophysical Research Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Deuterium in interstitial water from deep-sea cores","docAbstract":"As part of the Joint Oceanographic Institutions Deep Earth Sampling project, the interstitial waters of cores from 69 holes were sampled for deuterium analysis. Sixteen of the cores penetrated sediments as old as Eocene, and several sampled Cretaceous sediments, which allowed us to examine changes in the deuterium content of the oceans with time. Deuterium is shown to be a conservative constituent of the pore water. Its abundance in the pore fluids can be changed by diffusion, but the rate is slow, and corrections for this effect have been made. Changes in the abundance of deuterium can be related to changes in the amount of ice stored in continental glaciers, inasmuch as precipitation in the form of snow is highly depleted in deuterium compared with the oceans. Many of the cores show a change in isotopic composition of samples from early to late Miocene that can be ascribed to the buildup of the Antarctic ice sheets. After correcting for the role of diffusion in reducing the isotopic contrast between samples from a single core, we estimate an increase of 10 per mil (‰) δD (corresponding to a° δ18O change of about 1.2‰) between the early and late Miocene. A similiar analysis of Pleistocene to Holocene changes indicates a δD rise of 8‰ during the time of maximum continental ice, which corresponds to a δ18O increase of about 1.0‰. On the basis of limited data, we find no δD change in the oceans from Cretaceous to Miocene.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JC093iC07p08249","issn":"01480227","usgsCitation":"Friedman, I., and Hardcastle, K., 1988, Deuterium in interstitial water from deep-sea cores: Journal of Geophysical Research Solid Earth, v. 93, no. C7, p. 8249-8263, https://doi.org/10.1029/JC093iC07p08249.","productDescription":"15 p.","startPage":"8249","endPage":"8263","numberOfPages":"15","costCenters":[],"links":[{"id":225638,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"C7","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a0004e4b0c8380cd4f539","contributors":{"authors":[{"text":"Friedman, I.","contributorId":95596,"corporation":false,"usgs":true,"family":"Friedman","given":"I.","email":"","affiliations":[],"preferred":false,"id":368411,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hardcastle, K.","contributorId":45825,"corporation":false,"usgs":true,"family":"Hardcastle","given":"K.","affiliations":[],"preferred":false,"id":368410,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014398,"text":"70014398 - 1988 - Acid neutralizing processes in an alpine watershed front range, Colorado, U.S.A.-1: Buffering capacity of dissolved organic carbon in soil solutions","interactions":[],"lastModifiedDate":"2023-03-20T11:27:04.369244","indexId":"70014398","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Acid neutralizing processes in an alpine watershed front range, Colorado, U.S.A.-1: Buffering capacity of dissolved organic carbon in soil solutions","docAbstract":"Soil interstitial waters in the Green Lakes Valley, Front Range, Colorado were studied to evaluate the capacity of the soil system to buffer acid deposition. In order to determine the contribution of humic substances to the buffering capacity of a given soil, dissolved organic carbon (DOC) and pH of the soil solutions were measured. The concentration of the organic anion, Ai−, derived from DOC at sample pH and the concentration of organic anion, Ax− at the equivalence point were calculated using car☐yl contents from isolated and purified humic material from soil solutions. Subtracting Ax− from Ai− yields the contribution of humic substances to the buffering capacity (Aequiv.−). Using this method, one can evaluate the relative contribution of inorganic and organic constituents to the acid neutralizing capacity (ANC) of the soil solutions. The relative contribution of organic acids to the overall ANC was found to be extremely important in the alpine wetland (52%) and the forest-tundra ecotone (40%), and somewhat less important in the alpine tundra sites (20%). A failure to recognize the importance of organic acids in soil solutions to the ANC will result in erroneous estimates of the buffering capacity in the alpine environment of the Front Range, Colorado.
Results of recent geological and geophysical studies at Newberry Volcano have been incorporated into conceptual and numerical models of a magma-based hydrothermal system. Numerical simulations begin with emplacement of a small magma body, the presumed source of silicic eruptions at Newberry that began about 10,000 B.P., into a thermal regime representing 100,000 years of cooling of a large underlying intrusion. Simulated flow patterns and thermal histories for three sets of hypothetical permeability values are compatible with data from four geothermal drill holes on the volcano. Meteoric recharge cools the caldera-fill deposits, but thermal water moving up a central conduit representing a permeable volcanic vent produces temperatures close to those observed in drill holes within the caldera. Meteoric recharge from the caldera moves down the flanks and creates a near-isothermal zone that extends several hundred meters below the water table, producing temperature profiles similar to those observed in drill holes on the flanks. The temperatures observed in drill holes on the flanks are not influenced by the postulated Holocene magma body. The elevated temperature gradients measured in the lower portions of these holes may be related to the cumulative effect of older intrusions. The models also indicate that meteoric recharge to the deep hydrothermal system probably originates within or near the caldera. Relatively low fluid velocities at depth suggest that at least a significant fraction of the thermal fluid may be very old.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB093iB09p10149","issn":"01480227","usgsCitation":"Sammel, E., Ingebritsen, S.E., and Mariner, R.H., 1988, The hydrothermal system at Newberry Volcano, Oregon: Journal of Geophysical Research Solid Earth, v. 93, no. B9, p. 10149-10162, https://doi.org/10.1029/JB093iB09p10149.","productDescription":"14 p.","startPage":"10149","endPage":"10162","numberOfPages":"14","costCenters":[],"links":[{"id":225831,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"B9","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505baccee4b08c986b32375c","contributors":{"authors":[{"text":"Sammel, E.A.","contributorId":59480,"corporation":false,"usgs":true,"family":"Sammel","given":"E.A.","affiliations":[],"preferred":false,"id":368309,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ingebritsen, S. E.","contributorId":8078,"corporation":false,"usgs":true,"family":"Ingebritsen","given":"S.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":368308,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mariner, Robert H.","contributorId":81075,"corporation":false,"usgs":true,"family":"Mariner","given":"Robert","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":368310,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70013834,"text":"70013834 - 1988 - Dissolved gases in the DOSECC Cajon Pass well: First year results","interactions":[],"lastModifiedDate":"2024-02-14T01:15:21.126325","indexId":"70013834","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Dissolved gases in the DOSECC Cajon Pass well: First year results","docAbstract":"Fluid sampled from granitic rock near the 2 km depth in the DOSECC Cajon Pass well contained He, H2, CH4, C2H6, and C2H4 in concentrations much greater than in air-saturated water. The dissolved helium, which ranged in concentration from 0.6 to 0.8 µmole/kg-fluid, was almost entirely radiogenic (³He/4He = 0.06 Ra). The δ13C-CH4 value (−36 per mil) and (C2H6 + C2H4)/CH4 ratios (0.02 - 0.05) indicate that the dissolved methane (50-55 µmoles/kg-fluid) was produced by thermogenic breakdown of organic matter. Measured pCO2 values were very low, about 10−5 atm., and the carbon isotopes (δ13C = −18.9 per mil) point to an organic source such as plant root respiration for the dissolved carbonate species. No evidence of mantle volatiles was found despite proximity of the well to the San Andreas fault.
The solubility of the noble gases He, Ne, Ar, Kr and Xe was measured in two typical crude oils at temperatures of 25–100°C. The oil samples were obtained from the Elk Hills oil field located in southern San Joaquin Valley, California. The experimental procedure consisted of placing a known amount of gas with a known volume of crude oil in a stainless steel hydrothermal pressure vessel. The vessel was housed inside an oven and the entire unit rotates providing continuous mixing. The amount of gas dissolved in oil at a measured temperature and partial pressure of gas was used to calculate the solubility constants for these gases. Results show that the solubility of He and Ne in both oils is approximately the same; solubility then increases with atomic mass, with the solubility of Xe at 25°C being two orders of magnitude higher than that of He. The gas solubilities are somewhat higher in the lower density (higher API gravity) oil. The solubility of Ar is approximately constant in the range of temperatures of this study. The solubilities of He and Ne increase, but those of Kr and Xe decrease with increasing temperatures. Solubilities of noble gases in crude oil are significantly higher than their solubilities in water. For example, the solubilities of He and Xe at 25°C in the light oil of this study are, respectively, 3 and 24 times higher than their solubilities in pure water, and they are 15 and 300 times higher than in a brine with a salinity of 350,000 mg/l dissolved solids. These large and variable differences in the solubilities of noble gases in oil and water indicate that, in sedimentary basins with oil, these gases must be partitioned between oil, water and natural gas before they are used to deduce the origin and residence time of these fluids.
","language":"English","publisher":"Elsevier","doi":"10.1016/0883-2927(88)90001-7","issn":"08832927","usgsCitation":"Kharaka, Y.K., and Specht, D.J., 1988, The solubility of noble gases in crude oil at 25-100°C: Applied Geochemistry, v. 3, no. 2, p. 137-144, https://doi.org/10.1016/0883-2927(88)90001-7.","productDescription":"8 p.","startPage":"137","endPage":"144","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":220059,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb042e4b08c986b324d34","contributors":{"authors":[{"text":"Kharaka, Yousif K. 0000-0001-9861-8260 ykharaka@usgs.gov","orcid":"https://orcid.org/0000-0001-9861-8260","contributorId":1928,"corporation":false,"usgs":true,"family":"Kharaka","given":"Yousif","email":"ykharaka@usgs.gov","middleInitial":"K.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":366958,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Specht, Daniel J.","contributorId":6999,"corporation":false,"usgs":true,"family":"Specht","given":"Daniel","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":366957,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014362,"text":"70014362 - 1988 - Origin of metaluminous and alkaline volcanic rocks of the Latir volcanic field, northern Rio Grande rift, New Mexico","interactions":[],"lastModifiedDate":"2012-03-12T17:19:28","indexId":"70014362","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1336,"text":"Contributions to Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Origin of metaluminous and alkaline volcanic rocks of the Latir volcanic field, northern Rio Grande rift, New Mexico","docAbstract":"Volcanic rocks of the Latir volcanic field evolved in an open system by crystal fractionation, magma mixing, and crustal assimilation. Early high-SiO2 rhyolites (28.5 Ma) fractionated from intermediate compositionmagmas that did not reach the surface. Most precaldera lavas have intermediate-compositions, from olivine basaltic-andesite (53% SiO2) to quartz latite (67% SiO2). The precaldera intermediate-composition lavas have anomalously high Ni and MgO contents and reversely zoned hornblende and augite phenocrysts, indicating mixing between primitive basalts and fractionated magmas. Isotopic data indicate that all of the intermediate-composition rocks studied contain large crustal components, although xenocrysts are found only in one unit. Inception of alkaline magmatism (alkalic dacite to high-SiO2 peralkaline rhyolite) correlates with, initiation of regional extension approximately 26 Ma ago. The Questa caldera formed 26.5 Ma ago upon eruption of the >500 km3 high-SiO2 peralkaline Amalia Tuff. Phenocryst compositions preserved in the cogenetic peralkaline granite suggest that the Amalia Tuff magma initially formed from a trace element-enriched, high-alkali metaluminous magma; isotopic data suggest that the parental magmas contain a large crustal component. Degassing of water- and halogen-rich alkali basalts may have provided sufficient volatile transport of alkalis and other elements into the overlying silicic magma chamber to drive the Amalia Tuff magma to peralkaline compositions. Trace element variations within the Amalia Tuff itself may be explained solely by 75% crystal fractionation of the observed phenocrysts. Crystal settling, however, is inconsistent with mineralogical variations in the tuff, and crystallization is thought to have occurred at a level below that tapped by the eruption. Spatially associated Miocene (15-11 Ma) lavas did not assimilate large amounts of crust or mix with primitive basaltic magmas. Both mixing and crustal assimilation processes appear to require development of relatively large magma chambers in the crust that are sustained by large basalt fluxes from the mantle. The lack of extensive crustal contamination and mixing in the Miocene lavas may be related to a decreased basalt flux or initiation of blockfaulting that prevented pooling of basaltic magma in the crust. ?? 1988 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Contributions to Mineralogy and Petrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00399442","issn":"00107999","usgsCitation":"Johnson, C., and Lipman, P.W., 1988, Origin of metaluminous and alkaline volcanic rocks of the Latir volcanic field, northern Rio Grande rift, New Mexico: Contributions to Mineralogy and Petrology, v. 100, no. 1, p. 107-128, https://doi.org/10.1007/BF00399442.","startPage":"107","endPage":"128","numberOfPages":"22","costCenters":[],"links":[{"id":205690,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00399442"},{"id":226218,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"100","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a70e5e4b0c8380cd7630c","contributors":{"authors":[{"text":"Johnson, C.M.","contributorId":78707,"corporation":false,"usgs":true,"family":"Johnson","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":368218,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lipman, P. W.","contributorId":93470,"corporation":false,"usgs":true,"family":"Lipman","given":"P.","middleInitial":"W.","affiliations":[],"preferred":false,"id":368219,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1003023,"text":"1003023 - 1988 - High-performance liquid-chromatographic separation of subcomponents of antimycin-A","interactions":[],"lastModifiedDate":"2024-04-16T23:06:51.57827","indexId":"1003023","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2213,"text":"Journal of Chromatography","active":true,"publicationSubtype":{"id":10}},"title":"High-performance liquid-chromatographic separation of subcomponents of antimycin-A","docAbstract":"Using a reversed-phase high-performance liquid chromatographic (HPLC) technique, a mixture of antimycins A was separated into eight hitherto unreported subcomponents, A1a, A1b, A2a, A2b, A3a, A3b, A4a, and A4b. Although a base-line resolution of the known four major antimycins A1, A2, A3, and A4 was readily achieved with mobile phases containing acetate buffers, the separation of the new antibiotic subcomponents was highly sensitive to variation in mobile phase conditions. The type and composition of organic modifiers, the nature of buffer salts, and the concentration of added electrolytes had profound effects on capacity factors, separation factors, and peak resolution values. Of the numerous chromatographic systems examined, a mobile phase consisting of methanol-water (70:30) and 0.005 M tetrabutylammonium phosphate at pH 3.0 yielded the most satisfactory results for the separation of the subcomponents. Reversed-phase gradient HPLC separation of the dansylated or methylated antibiotic compounds produced superior chromatographic characteristics and the presence of added electrolytes was not a critical factor for achieving separation. Differences in the chromatographic outcome between homologous and structural isomers were interpretated based on a differential solvophobic interaction rationale. Preparative reversed-phase HPLC under optimal conditions enabled isolation of pure samples of the methylated antimycin subcomponents for use in structural studies.
","language":"English","publisher":"Elsevier","doi":"10.1016/0021-9673(88)90007-6","usgsCitation":"Abidi, S.L., 1988, High-performance liquid-chromatographic separation of subcomponents of antimycin-A: Journal of Chromatography, v. 447, no. 1, p. 65-79, https://doi.org/10.1016/0021-9673(88)90007-6.","productDescription":"15 p.","startPage":"65","endPage":"79","numberOfPages":"15","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":131309,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"447","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db635313","contributors":{"authors":[{"text":"Abidi, S. L.","contributorId":19898,"corporation":false,"usgs":true,"family":"Abidi","given":"S.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":312614,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70045317,"text":"70045317 - 1988 - Notes on sedimentation activities calendar year 1987","interactions":[],"lastModifiedDate":"2013-05-23T11:25:27","indexId":"70045317","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"title":"Notes on sedimentation activities calendar year 1987","docAbstract":"This report is a digest of information furnished by Federal agencies conducting sedimentation investigations. The decision to publish the report was made in 1946, from a proposal by the Chairman of the Federal Interagency River Basin Committee, Subcommittee on Ground Water. The subcommittee approved the proposal and agreed to issue this report as a means of effecting better coordination of the work of various Federal agencies in the field of sedimentation. The report was issued on a quarterly basis in 1946 and 1947, from 1948 to 1953 reports were issued every 6 months, and from 1954 to the present, the report has been issued annually.","language":"English","publisher":"U.S. Geological Survey, Office of Water Data Coordination","publisherLocation":"Reston, VA","usgsCitation":"U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation, 1988, Notes on sedimentation activities calendar year 1987, xxiv, 201 p.","productDescription":"xxiv, 201 p.","numberOfPages":"228","additionalOnlineFiles":"N","temporalStart":"1987-01-01","temporalEnd":"1987-12-31","costCenters":[],"links":[{"id":270697,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/unnumbered/70045317/report-thumb.jpg"},{"id":272714,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/70045317/report.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51653870e4b077fa94dadff1","contributors":{"authors":[{"text":"U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation","contributorId":127893,"corporation":true,"usgs":false,"organization":"U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation","id":535473,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1014027,"text":"1014027 - 1988 - A bioassay for production capacity assessment","interactions":[],"lastModifiedDate":"2023-08-09T15:53:00.071043","indexId":"1014027","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":852,"text":"Aquacultural Engineering","active":true,"publicationSubtype":{"id":10}},"title":"A bioassay for production capacity assessment","docAbstract":"Given sufficient oxygen, fish production can be limited by a multiplicity of factors. Accurate determination of production capacity requires something other than an estimate of the biomass at which ambient un-ionized ammonia will reach a recommended, non-site-specific, maximum safe concentration. A chronic (1- to 2-month) bioassay can be used to determine the point at which metabolite buildup reduces growth by some predetermined proportion, or causes unacceptable tissue damage. The bioassay is conducted as a series reuse, single-pass system, in which incoming water to each rearing unit is aerated to 90% dissolved oxygen saturation. The assessment of production capacity is based on the relation between cumulative oxygen consumption and growth reduction.
","language":"English","publisher":"Elsevier","doi":"10.1016/0144-8609(88)90011-8","usgsCitation":"Meade, J.W., 1988, A bioassay for production capacity assessment: Aquacultural Engineering, v. 7, p. 139-146, https://doi.org/10.1016/0144-8609(88)90011-8.","productDescription":"8 p.","startPage":"139","endPage":"146","numberOfPages":"8","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":129118,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b28e4b07f02db6b1272","contributors":{"authors":[{"text":"Meade, J. W.","contributorId":38082,"corporation":false,"usgs":true,"family":"Meade","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":319631,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1003144,"text":"1003144 - 1988 - Residues of benzocaine in rainbow trout, largemouth bass, and fish meal","interactions":[],"lastModifiedDate":"2025-07-29T15:31:58.759456","indexId":"1003144","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3196,"text":"Progressive Fish-Culturist","active":true,"publicationSubtype":{"id":10}},"title":"Residues of benzocaine in rainbow trout, largemouth bass, and fish meal","docAbstract":"Residues of the anesthetic benzocaine in muscle tissue of rainbow trout (Salmo gairdneri) and largemouth bass (Micropterus salmoides) were determined after exposure of the fish to 50 mg benzocaine/L for 15 min and withdrawal times of 0–24 h. The mean concentration of benzocaine residues in fish sampled immediately after exposure was 14.0 μg/g in rainbow trout and 10.6 μg/g in largemouth bass. Residues were below the control value after 8 h of withdrawal in largemouth bass and near the control value after 4 h of withdrawal in rainbow trout. Although residues of benzocaine were high in fish immediately after exposure, the concentration declined rapidly when the fish were held in flowing fresh water. Fish meal prepared from Pacific salmon (Oncorhynchus sp.) that had been anesthetized with benzocaine or trieaine (MS‐222) contained residues of 45.1 μg benzocaine/g or 47.7 μg trieaine/g.
","language":"English","publisher":"Oxford Academic","doi":"10.1577/1548-8640(1988)050%3C0059:ROBIRT%3E2.3.CO;2","usgsCitation":"Allen, J.L., 1988, Residues of benzocaine in rainbow trout, largemouth bass, and fish meal: Progressive Fish-Culturist, v. 50, no. 1, p. 59-60, https://doi.org/10.1577/1548-8640(1988)050%3C0059:ROBIRT%3E2.3.CO;2.","productDescription":"2 p.","startPage":"59","endPage":"60","numberOfPages":"2","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":134461,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a814f","contributors":{"authors":[{"text":"Allen, J. L.","contributorId":49295,"corporation":false,"usgs":true,"family":"Allen","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":312821,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014378,"text":"70014378 - 1988 - Instrumentation for a dry-pond detention study","interactions":[],"lastModifiedDate":"2012-03-12T17:19:31","indexId":"70014378","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Instrumentation for a dry-pond detention study","docAbstract":"A 12.3-acre, fully urbanized, residential land-use catchment was instrumented by the U. S. Geological Survey in Topeka, Kansas. Hydraulic instrumentation for flow measurement includes two types of flumes, a pipe-insert flume and a culvert-inlet (manhole) flume. Samples of rainfall and runoff for water-quality analyses were collected by automatic, 3-liter, 24-sample capacity water samples controlled by multichannel data loggers. Ancillary equipment included a raingage and wet/dry atmospheric-deposition sampler. Nineteen stormwater runoff events were monitored at the site using the instrumentation system. The system has a high reliability of data capture and permits an accurate determination of storm-water loads.","conferenceTitle":"Hydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering","conferenceDate":"8 August 1988 through 12 August 1988","conferenceLocation":"Colorado Springs, CO, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872626709; 0872626709","usgsCitation":"Pope, L.M., Jennings, M., and Thibodeaux, K., 1988, Instrumentation for a dry-pond detention study, Hydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering, Colorado Springs, CO, USA, 8 August 1988 through 12 August 1988, p. 84-89.","startPage":"84","endPage":"89","numberOfPages":"6","costCenters":[],"links":[{"id":225506,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3c49e4b0c8380cd62c08","contributors":{"authors":[{"text":"Pope, L. M.","contributorId":71939,"corporation":false,"usgs":true,"family":"Pope","given":"L.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":368261,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jennings, M.E.","contributorId":76775,"corporation":false,"usgs":true,"family":"Jennings","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":368262,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thibodeaux, K.G.","contributorId":16440,"corporation":false,"usgs":true,"family":"Thibodeaux","given":"K.G.","email":"","affiliations":[],"preferred":false,"id":368260,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014375,"text":"70014375 - 1988 - Fluid-inclusion evidence for previous higher temperatures in the Miravalles geothermal field, Costa Rica","interactions":[],"lastModifiedDate":"2024-04-19T18:50:12.599884","indexId":"70014375","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1828,"text":"Geothermics","active":true,"publicationSubtype":{"id":10}},"title":"Fluid-inclusion evidence for previous higher temperatures in the Miravalles geothermal field, Costa Rica","docAbstract":"Heating and freezing data were obtained for liquid-rich secondary fluid inclusions in magmatic quartz, hydrothermal calcite and hydrothermal quartz crystals from 19 sampled depths in eight production drill holes (PGM-1, 2, 3, 5, 10, 11, 12 and 15) of the Miravalles geothermal field in northwestern Costa Rica. Homogenization temperatures for 386 fluid inclusions range from near the present measured temperatures to as much as 70°C higher than the maximum measured well temperature of about 240°C. Melting-point temperature measurements for 76 fluid inclusions suggest a calculated salinity range of about 0.2–1.9 wt% NaCl equivalent. Calculated salinities as high as 3.1–4.0 wt% NaCl equivalent for 20 fluid inclusions from the lower part of drill hole PGM-15 (the deepest drill hole) indicate that higher salinity water probably was present in the deeper part of the Miravalles geothermal field at the time these fluid inclusions were formed.
","language":"English","publisher":"Elsevier","doi":"10.1016/0375-6505(88)90030-2","issn":"03756505","usgsCitation":"Bargar, K., and Fournier, R., 1988, Fluid-inclusion evidence for previous higher temperatures in the Miravalles geothermal field, Costa Rica: Geothermics, v. 17, no. 5-6, p. 681-693, https://doi.org/10.1016/0375-6505(88)90030-2.","productDescription":"13 p.","startPage":"681","endPage":"693","numberOfPages":"13","costCenters":[],"links":[{"id":225442,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"5-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a127ae4b0c8380cd54311","contributors":{"authors":[{"text":"Bargar, K.E.","contributorId":44548,"corporation":false,"usgs":true,"family":"Bargar","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":368252,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fournier, R.O.","contributorId":73584,"corporation":false,"usgs":true,"family":"Fournier","given":"R.O.","email":"","affiliations":[],"preferred":false,"id":368253,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014810,"text":"70014810 - 1988 - Natural variance in pH as a complication in detecting acidification of lakes","interactions":[],"lastModifiedDate":"2013-02-19T10:29:16","indexId":"70014810","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3728,"text":"Water, Air, & Soil Pollution","onlineIssn":"1573-2932","printIssn":"0049-6979","active":true,"publicationSubtype":{"id":10}},"title":"Natural variance in pH as a complication in detecting acidification of lakes","docAbstract":"Natural variance in the pH of three dilute lakes in the Flat Tops Wilderness Area, Colorado, complicates the detection of acidification. Variations in pH during July-September of 1983 were: 0.95 (Ned Wilson Lake), 1.36 (Upper Island Lake), and 1.53 (Oyster Lake). Mean diurnal variations in pH during 1983 were: 0.37 (Ned Wilson Lake), 0.54 (Upper Island Lake), and 0.39 (Oyster Lake). Replicate pH measurements indicate that pH can be measured with a mean variance due to measurement error of ?? 0.005. Regression analysis indicates that samples collected on the same day of different years may differ because of time of day and percentage of cloud cover. Differences in wind duration and intensity and primary productivity also may cause the pH to differ between years. Such differences can be either random or systematic. Comparisons of pH among 3 yr of data from Ned Wilson Lake indicate that natural variations in pH are much larger than variations in Colorado Lakes previously attributed to acidification by precipitation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water, Air, and Soil Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","doi":"10.1007/BF00226489","issn":"00496979","usgsCitation":"Turk, J., 1988, Natural variance in pH as a complication in detecting acidification of lakes: Water, Air, & Soil Pollution, v. 37, no. 1-2, p. 171-176, https://doi.org/10.1007/BF00226489.","startPage":"171","endPage":"176","numberOfPages":"6","costCenters":[],"links":[{"id":226109,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":267656,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00226489"}],"volume":"37","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6360e4b0c8380cd72478","contributors":{"authors":[{"text":"Turk, J.T.","contributorId":94259,"corporation":false,"usgs":true,"family":"Turk","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":369346,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014372,"text":"70014372 - 1988 - Irrigation drainage: Green River basin, Utah","interactions":[],"lastModifiedDate":"2012-03-12T17:19:32","indexId":"70014372","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Irrigation drainage: Green River basin, Utah","docAbstract":"A reconnaissance of wildlife areas in the middle Green River basin of Utah during 1986-87 determined that concentrations of selenium in water and biological tissues were potentially harmful to wildlife at the Stewart Lake Waterfowl Management Area and in the Ouray National Wildlife Refuge. Concentations of selenium in irrigation drainage entering Stewart Lake ranged from 14 to 140 micrograms per liter; liver tissue from coots collected from the lake contained selenium concentrations of as much as 26 micrograms per gram and samples of tissue from carp contained as much as 31 micrograms per gram. Concentrations of selenium in a pond at the Ouray National Wildlife Refuge, which receives irrigation water and shallow ground water, were as much as 93 micrograms per liter. Liver tissue from coots collected from this pond contained selenium concentrations of as much as 43 micrograms per gram; eggs of water birds contained as much as 120 micrograms per gram.","conferenceTitle":"Planning Now for Irrigation and Drainage in the 21st Century","conferenceDate":"18 July 1988 through 21 July 1988","conferenceLocation":"Lincoln, NE, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872626660","usgsCitation":"Stephens, D.W., Waddell, B., and Miller, J.B., 1988, Irrigation drainage: Green River basin, Utah, Planning Now for Irrigation and Drainage in the 21st Century, Lincoln, NE, USA, 18 July 1988 through 21 July 1988, p. 686-693.","startPage":"686","endPage":"693","numberOfPages":"8","costCenters":[],"links":[{"id":225377,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3f14e4b0c8380cd6424b","contributors":{"authors":[{"text":"Stephens, Doyle W.","contributorId":40195,"corporation":false,"usgs":true,"family":"Stephens","given":"Doyle","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":368240,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Waddell, Bruce","contributorId":55033,"corporation":false,"usgs":false,"family":"Waddell","given":"Bruce","email":"","affiliations":[{"id":6661,"text":"US Fish and Wildlife Service","active":true,"usgs":false}],"preferred":false,"id":368241,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miller, Jerry B.","contributorId":87305,"corporation":false,"usgs":true,"family":"Miller","given":"Jerry","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":368242,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014811,"text":"70014811 - 1988 - Further comments on sensitivities, parameter estimation, and sampling design in one-dimensional analysis of solute transport in porous media","interactions":[],"lastModifiedDate":"2018-02-19T17:52:23","indexId":"70014811","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Further comments on sensitivities, parameter estimation, and sampling design in one-dimensional analysis of solute transport in porous media","docAbstract":"Sensitivities of solute concentration to parameters associated with first-order chemical decay, boundary conditions, initial conditions, and multilayer transport are examined in one-dimensional analytical models of transient solute transport in porous media. A sensitivity is a change in solute concentration resulting from a change in a model parameter. Sensitivity analysis is important because minimum information required in regression on chemical data for the estimation of model parameters by regression is expressed in terms of sensitivities. Nonlinear regression models of solute transport were tested on sets of noiseless observations from known models that exceeded the minimum sensitivity information requirements. Results demonstrate that the regression models consistently converged to the correct parameters when the initial sets of parameter values substantially deviated from the correct parameters. On the basis of the sensitivity analysis, several statements may be made about design of sampling for parameter estimation for the models examined: (1) estimation of parameters associated with solute transport in the individual layers of a multilayer system is possible even when solute concentrations in the individual layers are mixed in an observation well; (2) when estimating parameters in a decaying upstream boundary condition, observations are best made late in the passage of the front near a time chosen by adding the inverse of an hypothesized value of the source decay parameter to the estimated mean travel time at a given downstream location; (3) estimation of a first-order chemical decay parameter requires observations to be made late in the passage of the front, preferably near a location corresponding to a travel time of √2 times the half-life of the solute; and (4) estimation of a parameter relating to spatial variability in an initial condition requires observations to be made early in time relative to passage of the solute front.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR024i002p00225","usgsCitation":"Knopman, D.S., and Voss, C.I., 1988, Further comments on sensitivities, parameter estimation, and sampling design in one-dimensional analysis of solute transport in porous media: Water Resources Research, v. 24, no. 2, p. 225-238, https://doi.org/10.1029/WR024i002p00225.","productDescription":"14 p.","startPage":"225","endPage":"238","costCenters":[],"links":[{"id":226110,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"2","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505a1421e4b0c8380cd5490c","contributors":{"authors":[{"text":"Knopman, Debra S.","contributorId":51472,"corporation":false,"usgs":true,"family":"Knopman","given":"Debra","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":369347,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Voss, Clifford I. 0000-0001-5923-2752 cvoss@usgs.gov","orcid":"https://orcid.org/0000-0001-5923-2752","contributorId":1559,"corporation":false,"usgs":true,"family":"Voss","given":"Clifford","email":"cvoss@usgs.gov","middleInitial":"I.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":369348,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014340,"text":"70014340 - 1988 - The aqueous geochemistry of uranium in a drainage containing uraniferous organic-rich sediments, Lake Tahoe area, Nevada, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:19:29","indexId":"70014340","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3668,"text":"Uranium","active":true,"publicationSubtype":{"id":10}},"title":"The aqueous geochemistry of uranium in a drainage containing uraniferous organic-rich sediments, Lake Tahoe area, Nevada, USA","docAbstract":"Anomalously uraniferous waters occur in a small (4.2 km2) drainage in the west-central Carson Range, Nevada, on the eastern side of Lake Tahoe. The waters transport uranium from local U-rich soils and bedrock to organic-rich valley-fill sediments where it is concentrated, but weakly bound. The dissolved U and the U that is potentially available from coexisting sediments pose a threat to the quality of drinking water that is taken from the drainage. The U concentration in samples of 6 stream, 11 spring and 7 near-surface waters ranged from <1 to 177 ??g l-1 with an average value of 17 ?? 14 ??g l-1 for stream and spring waters. This value significantly exceeds a reported regional average value of ~5 ??g l-1, and is comparable to proposed maximum contaminant levels of U in drinking water. Calculations that utilize chemical compositions of the waters and thermodynamic data indicate that uranyl-carbonate and uranyl-phosphate complexes are the major inorganic species of dissolved U. In addition, dialysis experiments suggest an association of at least some dissolved U with macromolecular organic matter, particularly in near-surface waters that are in contact with organic-rich sediments. Calculations of the saturation index for uranous and uranyl-bearing minerals indicate that all of the waters are undersaturated with uranium minerals as long as ambient Eh is oxidizing (i.e. > 0.1 V). Possible precipitation of U(IV) minerals is predicted under the more reducing conditions that are particularly likely in near-surface waters, but the inhibitory effects of sluggish kinetics or organic complexing are not considered. These combined results suggest that a process such as adsorption or ion exchange, rather than mineral saturation, is the most probable mechanism for uranium fixation in the sediments. -Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Uranium","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Zielinski, R.A., Otton, J.K., Wanty, R., and Pierson, C.T., 1988, The aqueous geochemistry of uranium in a drainage containing uraniferous organic-rich sediments, Lake Tahoe area, Nevada, USA: Uranium, v. 4, no. 4, p. 281-305.","startPage":"281","endPage":"305","numberOfPages":"25","costCenters":[],"links":[{"id":225828,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba9cde4b08c986b32250b","contributors":{"authors":[{"text":"Zielinski, R. A. 0000-0002-4047-5129","orcid":"https://orcid.org/0000-0002-4047-5129","contributorId":106930,"corporation":false,"usgs":true,"family":"Zielinski","given":"R.","email":"","middleInitial":"A.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":368159,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Otton, J. K.","contributorId":52589,"corporation":false,"usgs":true,"family":"Otton","given":"J.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":368156,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wanty, R. B. 0000-0002-2063-6423","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":66704,"corporation":false,"usgs":true,"family":"Wanty","given":"R. B.","affiliations":[],"preferred":false,"id":368158,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Pierson, C. T.","contributorId":57055,"corporation":false,"usgs":true,"family":"Pierson","given":"C.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":368157,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}