{"pageNumber":"384","pageRowStart":"9575","pageSize":"25","recordCount":16506,"records":[{"id":70185693,"text":"70185693 - 1998 - Critical evaluation and selection of standard state thermodynamic properties for chromium metal and its aqueous ions, hydrolysis species, oxides, and hydroxides","interactions":[],"lastModifiedDate":"2017-03-27T16:06:33","indexId":"70185693","displayToPublicDate":"1998-10-15T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3821,"text":"Journal of Chemical & Engineering Data","active":true,"publicationSubtype":{"id":10}},"title":"Critical evaluation and selection of standard state thermodynamic properties for chromium metal and its aqueous ions, hydrolysis species, oxides, and hydroxides","docAbstract":"

This review critically evaluates the reported thermodynamic data on chromium metal, oxides, hydroxides, free aqueous ions, and hydrolysis species. Several discrepancies and inconsistencies have been uncovered and resolved to improve equilibrium calculations for chemical modeling and related engineering purposes. A revised set of data is derived from evaluation of electrochemical measurements, silver chromate solubility measurements, and auxiliary post-1980 data, reevaluation of earlier data, and reconsideration of the path for the thermodynamic network. The recommended thermodynamic values for Cr(cr), C \"\" , C \"\" , Cr \"\" , Cr2 \"\" , Cr2O3(cr), CrO3(cr), FeCr2O4(cr), CrCl2(cr), CrCl3(cr), and KFe3(CrO4)2(OH)6(cr)at 25 °C, 1 bar, and infinite dilution are given.

","language":"English","publisher":"American Chemical Society","doi":"10.1021/je980080a","usgsCitation":"Ball, J.W., and Nordstrom, D.K., 1998, Critical evaluation and selection of standard state thermodynamic properties for chromium metal and its aqueous ions, hydrolysis species, oxides, and hydroxides: Journal of Chemical & Engineering Data, v. 43, no. 6, p. 895-918, https://doi.org/10.1021/je980080a.","productDescription":"24 p. ","startPage":"895","endPage":"918","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338420,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"6","noUsgsAuthors":false,"publicationDate":"1998-10-15","publicationStatus":"PW","scienceBaseUri":"58da253be4b0543bf7fda86b","contributors":{"authors":[{"text":"Ball, James W.","contributorId":38946,"corporation":false,"usgs":true,"family":"Ball","given":"James","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":686417,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":false,"id":686418,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70128721,"text":"70128721 - 1998 - Geologic controls on the formation of lakes in north-central Florida","interactions":[],"lastModifiedDate":"2018-02-15T14:59:38","indexId":"70128721","displayToPublicDate":"1998-10-14T10:44:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"seriesNumber":"26","title":"Geologic controls on the formation of lakes in north-central Florida","docAbstract":"

Fluid exchange between surficial waters and groundwater, as well as the processes that control this exchange, are of critical concern to water management districts and planners. Digital high-resolution seismic systems were used to collect geophysical data from 30 lakes of north-central Florida. Although using seismic profile data in the past has been less than successful, the use of digital technology has increased the potential for success. Seismic profiles collected from the lakes of north-central Florida have shown the potential application of these techniques in understanding the formation of individual lakes. In each case study, lake structure and geomorphology were controlled by solution and/or mechanical processes. Processes that control lake development are twofold: 1) karstification or dissolution of the underlying limestone, and 2) me collapse, subsidence, or slumping of overburden to form sinkholes. Initial lake formation is directly related to the karst topography of the underlying host limestone. Lake size and shape are a factor of the thickness of overburden and size of the collapse or subsidence and/or clustering of depressions allowing for lake development. Lake development is through progressive sequence stages to maturity that can be delineated into geomorphic types. Case studies have shown that lakes can be divided by geomorphic types into progressive developmental phases: (1) active subsidence or collapse phase (young) - the open to partially filled collapse structures typically associated with sink holes; (2) transitional phase (middle age) - the sinkhole is plugged as the voids within the collapse are filled with sediment, periodic reactivation may occur; (3) baselevel phase (mature) - active sinkholes are progressively plugged by the continual erosion of material into the basin, and eventually sediment fills the basins; and (4) polje (drowned prairie) - broad flat-bottom basins located within the epiphreatic zone that are inundated at high stages of the water table and have one or all phases of sinkhole development and many types of karst and karren features.

\n
\n

Most lakes in this study have a small diameter (<1 km) making stratigraphic correlations from lake to lake difficult. Seismic profiles of subsurface features were used to define the lake geologic history and to locate possible breaches in the confining layer that maintains these lakes. Nine types of acoustical signatures were identified from the profiles to describe the structural history of each lake. Using these criteria, Florida lakes can be classified by size, fill, subsurface features, and geomorphology. Classification of the lakes has led to a better understanding of the relation between the geology and hydrology of Florida.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Modern and Ancient Lake Systems: New Problems and Perspectives, 1998","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"Utah Geological Association","usgsCitation":"Kindinger, J.L., Davis, J.B., and Flocks, J.G., 1998, Geologic controls on the formation of lakes in north-central Florida, 22 p.","productDescription":"22 p.","startPage":"9","endPage":"30","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":295267,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":295266,"type":{"id":15,"text":"Index Page"},"url":"https://archives.datapages.com/data/uga/data/069/069001/9_ugs690009.htm"}],"country":"United States","state":"Florida","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"543e3b27e4b0fd76af69cf0d","contributors":{"editors":[{"text":"Pitman, Janet K. 0000-0002-0441-779X jpitman@usgs.gov","orcid":"https://orcid.org/0000-0002-0441-779X","contributorId":767,"corporation":false,"usgs":true,"family":"Pitman","given":"Janet","email":"jpitman@usgs.gov","middleInitial":"K.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":510009,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Carroll, Alan R.","contributorId":111442,"corporation":false,"usgs":true,"family":"Carroll","given":"Alan","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":510008,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Kindinger, Jack L. jkindinger@usgs.gov","contributorId":815,"corporation":false,"usgs":true,"family":"Kindinger","given":"Jack","email":"jkindinger@usgs.gov","middleInitial":"L.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":503117,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, Jeffrey B.","contributorId":104834,"corporation":false,"usgs":true,"family":"Davis","given":"Jeffrey","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":503119,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Flocks, James G. 0000-0002-6177-7433 jflocks@usgs.gov","orcid":"https://orcid.org/0000-0002-6177-7433","contributorId":816,"corporation":false,"usgs":true,"family":"Flocks","given":"James","email":"jflocks@usgs.gov","middleInitial":"G.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":503118,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70128717,"text":"70128717 - 1998 - Seasonal variation in habitat use by marsh fishes","interactions":[],"lastModifiedDate":"2017-12-14T17:08:06","indexId":"70128717","displayToPublicDate":"1998-10-14T10:37:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1471,"text":"Ecology of Freshwater Fish","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal variation in habitat use by marsh fishes","docAbstract":"We used I-m2 throw traps to examine habitat use by smallsized fishes within a mosaic of wet prairies and sloughs in the headwaters of the St. Johns River, Florida between August 1992 and November 1995. Estimates of total fish density and biomass varied temporally, but did not differ significantly between habitats. Patterns of habitat use, however, differed among the five numerically dominant species. Bluefin killifish, mosquitofish, and golden topminnows were more abundant in sloughs than in wet prairies. In contrast, Everglades pygmy sunfish were more abundant in wet prairies than in sloughs. Finally, the abundance of least killifish did not differ between habitats. Fish densities were positively correlated with plant biomass (i. e., habitat complexity) and negatively correlated with water depth (i. e., hydrology). Species richness and composition were similar among habitats. However, consistent differences in the relative abundance of numerically dominant species between habitats indicated some degree of habitat-specific assemblage structure. Most species were concentrated into deeper sloughs during drying events. This assemblage of small-sized fishes appears to respond relatively rapidly to changes in habitat structure and hydrologic conditions. We therefore recommend that resource managers consider using fishes as indicator taxa to evaluate the efficacy of ongoing restoration and management efforts in wetland systems.","language":"English","publisher":"Wiley","doi":"10.1111/j.1600-0633.1998.tb00182.x","usgsCitation":"Jordan, F., Babbitt, K.J., and McIvor, C.C., 1998, Seasonal variation in habitat use by marsh fishes: Ecology of Freshwater Fish, v. 7, no. 4, p. 159-166, https://doi.org/10.1111/j.1600-0633.1998.tb00182.x.","productDescription":"8 p.","startPage":"159","endPage":"166","costCenters":[{"id":183,"text":"Coastal and Marine Geology","active":false,"usgs":true}],"links":[{"id":295261,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":295260,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1600-0633.1998.tb00182.x"}],"country":"United States","state":"Florida","otherGeospatial":"St. Johns River","volume":"7","issue":"4","noUsgsAuthors":false,"publicationDate":"2006-06-30","publicationStatus":"PW","scienceBaseUri":"543e3b30e4b0fd76af69cf31","contributors":{"authors":[{"text":"Jordan, F.","contributorId":27379,"corporation":false,"usgs":true,"family":"Jordan","given":"F.","email":"","affiliations":[],"preferred":false,"id":503106,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Babbitt, K. J.","contributorId":38920,"corporation":false,"usgs":true,"family":"Babbitt","given":"K.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":503108,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McIvor, C. C.","contributorId":29333,"corporation":false,"usgs":true,"family":"McIvor","given":"C.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":503107,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70185264,"text":"70185264 - 1998 - Reply to comment by E. Holzbecher on \"Constant-concentration boundary condition: Lessons from the HYDROCOIN variable-density groundwater benchmark problem\"","interactions":[],"lastModifiedDate":"2019-02-04T08:13:33","indexId":"70185264","displayToPublicDate":"1998-10-01T00:00:00","publicationYear":"1998","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":"Reply to comment by E. Holzbecher on \"Constant-concentration boundary condition: Lessons from the HYDROCOIN variable-density groundwater benchmark problem\"","docAbstract":"

We appreciate the opportunity to continue a dialogue on solute-transport modeling issues and perhaps to clarify some of our original concerns. It appears to us that Holzbecher [this issue] fails to consider the physical implications of groundwater flow and solute transport along no-flow boundaries. A no-flow boundary coincides with a streamline along which the fluid velocity is generally nonzero. Because the velocity is nonzero, both advective and dispersive transport processes can be operative along a no-flow boundary.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/98WR02189","usgsCitation":"Konikow, L.F., and Sanford, W., 1998, Reply to comment by E. Holzbecher on \"Constant-concentration boundary condition: Lessons from the HYDROCOIN variable-density groundwater benchmark problem\": Water Resources Research, v. 34, no. 10, p. 2779-2780, https://doi.org/10.1029/98WR02189.","productDescription":"2 p. ","startPage":"2779","endPage":"2780","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":479699,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/98wr02189","text":"Publisher Index Page"},{"id":337800,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58ccf59fe4b0849ce97f0cee","contributors":{"authors":[{"text":"Konikow, Leonard F. 0000-0002-0940-3856 lkonikow@usgs.gov","orcid":"https://orcid.org/0000-0002-0940-3856","contributorId":158,"corporation":false,"usgs":true,"family":"Konikow","given":"Leonard","email":"lkonikow@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":684931,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sanford, W. E. 0000-0002-6624-0280","orcid":"https://orcid.org/0000-0002-6624-0280","contributorId":102112,"corporation":false,"usgs":true,"family":"Sanford","given":"W. E.","affiliations":[],"preferred":false,"id":684932,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":24040,"text":"ofr98199 - 1998 - Hydrologic investigation of the Ophir Creek watershed near Yakutat, Alaska","interactions":[],"lastModifiedDate":"2012-02-02T00:08:10","indexId":"ofr98199","displayToPublicDate":"1998-10-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-199","title":"Hydrologic investigation of the Ophir Creek watershed near Yakutat, Alaska","docAbstract":"Data on streamflow and ground-water levels were collected in the Ophir Creek watershed in southeast Alaska to obtain information about the relations between streamflow, ground-water levels, and precipitation. In addition, the possible effect of an experimental channel excavation to increase flows in Ophir Creek was evaluated. Stream discharges were monitored continuously at one site and measured intermittently at five other sites from October 1991 to May 1997, and ground-water levels were measured weekly in seven wells from July 1995 to October 1996. All measured ground-water levels were less than 11.4 feet below land surface. The data indicate that ground-water levels are closely related to rain and snowmelt, which in turn are related to water levels in Ophir Creek. Six of seven wells had peak water levels concurrent with peak flows in Ophir Creek. In one well, both maximum and minimum water levels coincided with maximum and minimum streamflow in Ophir Creek. Deepening part of the Ophir Creek channel by excavation has increased streamflows along the deepened reach; however, some of this additional flow infiltrates into the stream channel downstream from the excavated reach. The deepened reach flowed intermittently before the excavation and continues to dewater during prolonged periods of no precipitation.","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/ofr98199","issn":"0094-9140","usgsCitation":"Neal, E., 1998, Hydrologic investigation of the Ophir Creek watershed near Yakutat, Alaska: U.S. Geological Survey Open-File Report 98-199, iv, 33 p. :ill., maps ;28 cm.; 8 illus.; 4 plates; 4 tables, https://doi.org/10.3133/ofr98199.","productDescription":"iv, 33 p. :ill., maps ;28 cm.; 8 illus.; 4 plates; 4 tables","costCenters":[],"links":[{"id":156293,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0199/report-thumb.jpg"},{"id":19491,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0199/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db606935","contributors":{"authors":[{"text":"Neal, Edward G.","contributorId":68775,"corporation":false,"usgs":true,"family":"Neal","given":"Edward G.","affiliations":[],"preferred":false,"id":191204,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":21566,"text":"ofr98364 - 1998 - Acid-neutralizing potential of minerals in intrusive rocks of the Boulder batholith in northern Jefferson County, Montana","interactions":[],"lastModifiedDate":"2020-03-24T06:33:11","indexId":"ofr98364","displayToPublicDate":"1998-10-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-364","title":"Acid-neutralizing potential of minerals in intrusive rocks of the Boulder batholith in northern Jefferson County, Montana","docAbstract":"Experimental studies show that fresh granitic rocks of the Boulder batholith in the\r\nBoulder River headwaters near Basin, Montana have significant acid-neutralizing\r\npotential and are capable of neutralizing acidic water derived from metal-mining related\r\nwastes or mine workings. Laboratory studies show that in addition to the acidneutralizing\r\npotential (ANP) of minor amounts of calcite in these rocks, biotite, tremolite,\r\nand feldspars will contribute significantly to long-term ANP.\r\nWe produced 0.45 micrometer-filtered acidic (pH = 2.95) leachate for use in these\r\nANP experiments by exposing metal-mining related wastes to deionized water in a\r\nwaste:leachate ratio of 1:20. We then exposed these leachates to finely-ground and sized\r\nfractions of batholith rocks, and some of their mineral fractions for extended and repeated\r\nperiods, for which results are reported here. The intent was to understand what reactions\r\nof metal-rich acidic water and fresh igneous rocks would produce.\r\nThe reactions between the acidic leachates and the bulk rocks and mineral fractions\r\nare complex. Factors such as precipitation of phases like Fe-hydroxides and Alhydroxides\r\nand the balance between dissolved cations and anions that are sulfate\r\ndominated complicate analysis of the results. Research by others of acid neutralization by\r\nbiotite and tremolite attributed a rise in pH to proton (H+) adsorption in sites vacated by\r\nK, Mg, and Ca. Destruction of the silicate framework and liberation of associated\r\nstructural hydroxyl ions may contribute to ANP. Studies by others have indicated that\r\nthe conversion of biotite to a vermiculite-type structure by removal of K at a pH of 4\r\nconsumes about six protons for every mole of biotite, but at a pH of 3 there is pronounced\r\ndissolution of the tetrahedral lattice.\r\nThe ANP of fresh granitic rocks is much higher than anticipated. The three bulk\r\nBoulder igneous rock samples studied have minimum ANP equivalent to about 10-14\r\nweight percent calcite. This ANP is in addition to that provided by the 0.36-1.4 weight\r\npercent calcite present in these samples. The total rock ANP is thus equivalent to that of\r\nmany sedimentary rocks that are generally believed to be among the most efficient for\r\nattenuation of acidic waters.\r\nThe long-term ANP contributed by biotite, tremolite, feldspars, and possibly\r\nunidentified minerals in these rocks, as well as calcite, are all important with regard to\r\ntheir natural remediation of degraded water quality originating from Fe-sulfide rich\r\nmineral deposits and the associated mine wastes and acid-mine drainage water.","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98364","usgsCitation":"Desborough, G.A., Briggs, P.H., Mazza, N., and Driscoll, R., 1998, Acid-neutralizing potential of minerals in intrusive rocks of the Boulder batholith in northern Jefferson County, Montana: U.S. Geological Survey Open-File Report 98-364, 21 p. , https://doi.org/10.3133/ofr98364.","productDescription":"21 p. ","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":9140,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/1998/ofr-98-0364/","linkFileType":{"id":5,"text":"html"}},{"id":153482,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","state":"Montana","county":"Jefferson County","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.23535156249999,\n 48.69096039092549\n ],\n [\n -115.927734375,\n 47.487513008956554\n ],\n [\n -114.345703125,\n 46.6795944656402\n ],\n [\n -114.521484375,\n 45.460130637921004\n ],\n [\n -113.90625,\n 45.49094569262732\n ],\n [\n -113.37890625,\n 44.99588261816546\n ],\n [\n -112.939453125,\n 44.213709909702054\n ],\n [\n -111.533203125,\n 44.49650533109348\n ],\n [\n -110.91796875,\n 44.99588261816546\n ],\n [\n -103.974609375,\n 45.089035564831036\n ],\n [\n -104.150390625,\n 49.06666839558117\n ],\n [\n -116.23535156249999,\n 48.69096039092549\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b11e4b07f02db6a23ef","contributors":{"authors":[{"text":"Desborough, George A.","contributorId":101661,"corporation":false,"usgs":true,"family":"Desborough","given":"George","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":184690,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Briggs, Paul H.","contributorId":30973,"corporation":false,"usgs":true,"family":"Briggs","given":"Paul","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":184688,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mazza, Nilah","contributorId":27483,"corporation":false,"usgs":true,"family":"Mazza","given":"Nilah","email":"","affiliations":[],"preferred":false,"id":184687,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Driscoll, Rhonda","contributorId":96716,"corporation":false,"usgs":true,"family":"Driscoll","given":"Rhonda","affiliations":[],"preferred":false,"id":184689,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":23392,"text":"ofr98188 - 1998 - Addition of MOC3D solute-transport model capability to the U.S. Geological Survey MODFLOW-96 graphical-user interface using Argus open numerical environments","interactions":[],"lastModifiedDate":"2020-03-04T18:59:13","indexId":"ofr98188","displayToPublicDate":"1998-10-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-188","title":"Addition of MOC3D solute-transport model capability to the U.S. Geological Survey MODFLOW-96 graphical-user interface using Argus open numerical environments","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98188","issn":"0094-9140","usgsCitation":"Hornberger, G., and Konikow, L.F., 1998, Addition of MOC3D solute-transport model capability to the U.S. Geological Survey MODFLOW-96 graphical-user interface using Argus open numerical environments: U.S. Geological Survey Open-File Report 98-188, vi, 30 p. , https://doi.org/10.3133/ofr98188.","productDescription":"vi, 30 p. ","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":52692,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0188/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":156209,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0188/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699bdc","contributors":{"authors":[{"text":"Hornberger, G.Z.","contributorId":71582,"corporation":false,"usgs":true,"family":"Hornberger","given":"G.Z.","email":"","affiliations":[],"preferred":false,"id":190032,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Konikow, Leonard F. 0000-0002-0940-3856 lkonikow@usgs.gov","orcid":"https://orcid.org/0000-0002-0940-3856","contributorId":158,"corporation":false,"usgs":true,"family":"Konikow","given":"Leonard","email":"lkonikow@usgs.gov","middleInitial":"F.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":190031,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":22100,"text":"ofr98181 - 1998 - A reconnaissance for selected herbicides, metabolites, and nutrients in streams of nine Midwestern States, 1994-95","interactions":[],"lastModifiedDate":"2020-03-04T18:47:13","indexId":"ofr98181","displayToPublicDate":"1998-10-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-181","title":"A reconnaissance for selected herbicides, metabolites, and nutrients in streams of nine Midwestern States, 1994-95","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr98181","issn":"0094-9140","usgsCitation":"Scribner, E., Goolsby, D.A., Michael, T., and Battaglin, W., 1998, A reconnaissance for selected herbicides, metabolites, and nutrients in streams of nine Midwestern States, 1994-95: U.S. Geological Survey Open-File Report 98-181, iv, 44 p. , https://doi.org/10.3133/ofr98181.","productDescription":"iv, 44 p. ","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":153821,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0181/report-thumb.jpg"},{"id":51545,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0181/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","otherGeospatial":"Midwest region","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -101.6015625,\n 37.37015718405753\n ],\n [\n -88.681640625,\n 36.94989178681327\n ],\n [\n -84.375,\n 37.579412513438385\n ],\n [\n -80.5078125,\n 39.436192999314095\n ],\n [\n -80.419921875,\n 41.902277040963696\n ],\n [\n -82.529296875,\n 45.336701909968134\n ],\n [\n -87.71484375,\n 48.40003249610685\n ],\n [\n -95.2734375,\n 49.724479188712984\n ],\n [\n -103.095703125,\n 49.439556958940855\n ],\n [\n -104.23828125,\n 47.69497434186282\n ],\n [\n -104.150390625,\n 41.244772343082076\n ],\n [\n -101.689453125,\n 41.11246878918088\n ],\n [\n -101.6015625,\n 37.37015718405753\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4965e4b0b290850ef203","contributors":{"authors":[{"text":"Scribner, E.A.","contributorId":50925,"corporation":false,"usgs":true,"family":"Scribner","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":187075,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goolsby, D. A.","contributorId":50508,"corporation":false,"usgs":true,"family":"Goolsby","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":187074,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Michael, T.E.","contributorId":8500,"corporation":false,"usgs":true,"family":"Michael","given":"T.E.","affiliations":[],"preferred":false,"id":187072,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Battaglin, W.A.","contributorId":16376,"corporation":false,"usgs":true,"family":"Battaglin","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":187073,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":25845,"text":"wri974269 - 1998 - Water-quality data and methods of analysis for samples collected near a plume of sewage-contaminated ground water, Ashumet Valley, Cape Cod, Massachusetts, 1993-94","interactions":[],"lastModifiedDate":"2019-10-08T13:52:31","indexId":"wri974269","displayToPublicDate":"1998-10-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"97-4269","title":"Water-quality data and methods of analysis for samples collected near a plume of sewage-contaminated ground water, Ashumet Valley, Cape Cod, Massachusetts, 1993-94","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey ","publisherLocation":"Reston, VA","doi":"10.3133/wri974269","usgsCitation":"Savoie, J., and LeBlanc, D.R., 1998, Water-quality data and methods of analysis for samples collected near a plume of sewage-contaminated ground water, Ashumet Valley, Cape Cod, Massachusetts, 1993-94: U.S. Geological Survey Water-Resources Investigations Report 97-4269, v, 208 p. , https://doi.org/10.3133/wri974269.","productDescription":"v, 208 p. ","costCenters":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":157823,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":2066,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri974269/","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Massachusetts","otherGeospatial":"Cape Cod","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -70.850830078125,\n 41.60722821271717\n ],\n [\n -69.66430664062499,\n 41.60722821271717\n ],\n [\n -69.66430664062499,\n 42.204107493733176\n ],\n [\n -70.850830078125,\n 42.204107493733176\n ],\n [\n -70.850830078125,\n 41.60722821271717\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a14e4b07f02db602eaa","contributors":{"authors":[{"text":"Savoie, Jennifer G. jsavoie@usgs.gov","contributorId":1691,"corporation":false,"usgs":true,"family":"Savoie","given":"Jennifer G.","email":"jsavoie@usgs.gov","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":false,"id":195318,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"LeBlanc, Denis R. 0000-0002-4646-2628 dleblanc@usgs.gov","orcid":"https://orcid.org/0000-0002-4646-2628","contributorId":1696,"corporation":false,"usgs":true,"family":"LeBlanc","given":"Denis","email":"dleblanc@usgs.gov","middleInitial":"R.","affiliations":[{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":195319,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":28561,"text":"wri974251 - 1998 - Mass balance, meteorological, ice motion, surface altitude, and runoff data at Gulkana Glacier, Alaska, 1994 balance year","interactions":[],"lastModifiedDate":"2012-02-02T00:08:53","indexId":"wri974251","displayToPublicDate":"1998-10-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"97-4251","title":"Mass balance, meteorological, ice motion, surface altitude, and runoff data at Gulkana Glacier, Alaska, 1994 balance year","docAbstract":"The 1994 measured winter snow, maximum winter snow, net, and annual balances in the Gulkana Glacier basin were evaluated on the basis of meteorological, hydrological, and glaciological data obtained in the basin. Averaged over the glacier, the measured winter snow balance was 1.34 meters on April 29, 1994, 0.9 standard deviation above the long-term average; the maximum winter snow balance, 1.43 meters, was reached on April 18, 1994; the net balance (from September 8, 1993 to September 17, 1994) was -0.72 meter, 0.7 standard deviation below the long-term average. The annual balance (October 1, 1992, to September 30, 1993) was -0.88 meter. Ice-surface motion and altitude changes measured at three index sites document seasonal ice speed and glacier-thickness changes. Annual stream runoff was 1.93 meters averaged over the basin, approximately equal to the long-term average.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri974251","usgsCitation":"March, R.S., 1998, Mass balance, meteorological, ice motion, surface altitude, and runoff data at Gulkana Glacier, Alaska, 1994 balance year: U.S. Geological Survey Water-Resources Investigations Report 97-4251, vi, 31 p. :ill., map ;28 cm.; 8 illus.; 11 plates; 11 tables, https://doi.org/10.3133/wri974251.","productDescription":"vi, 31 p. :ill., map ;28 cm.; 8 illus.; 11 plates; 11 tables","costCenters":[],"links":[{"id":2349,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri974251","linkFileType":{"id":5,"text":"html"}},{"id":119740,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_97_4251.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a26e4b07f02db60fd39","contributors":{"authors":[{"text":"March, Rod S. rsmarch@usgs.gov","contributorId":416,"corporation":false,"usgs":true,"family":"March","given":"Rod","email":"rsmarch@usgs.gov","middleInitial":"S.","affiliations":[],"preferred":true,"id":200030,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70214427,"text":"70214427 - 1998 - Anaerobic benzene oxidation in the Fe(III) reduction zone of petroleum-contaminated aquifers","interactions":[],"lastModifiedDate":"2020-09-25T20:17:03.589724","indexId":"70214427","displayToPublicDate":"1998-09-25T15:06:53","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Anaerobic benzene oxidation in the Fe(III) reduction zone of petroleum-contaminated aquifers","docAbstract":"

The potential for anaerobic benzene oxidation in the Fe(III)-reduction zone of petroleum-contaminated aquifers was evaluated. Sediments were incubated under strict anaerobic conditions without any amendments in order to simulate in situ conditions. [14C]Benzene was not oxidized to 14CO2 at most sites examined, which is consistent with previous studies that have found that benzene tends to persist in unamended, anaerobic aquifer materials and/or long periods of time are required in order to adapt the microbial population for benzene degradation. However, at one site located in Bemidji, MN, [14C]benzene was oxidized to 14CO2 in unamended sediments without an apparent lag, suggesting that benzene was anaerobically degraded in situ. Benzene was not significantly oxidized in sediments from nearby Fe(III)-reducing sites nor in sediments collected from an uncontaminated background site in the same aquifer. Culturing and 16S rRNA-based molecular studies of the Bemidji aquifer demonstrated that while all sites contained similar numbers of Fe(III)-reducing microorganisms closely related to Geothrix fermentens, the site at which anaerobic benzene degradation was observed was greatly enriched with microorganisms in the family Geobacteraceae. This study provides the first data consistent with in situ anaerobic oxidation of benzene to carbon dioxide in the Fe(III)-reducing zone of a petroleum-contaminated aquifer and suggests that comparative studies on the size of the Geobacteraceae community in petroleum-contaminated aquifers might aid in the location of zones in which benzene degradation coupled to Fe(III) reduction is taking place.

","language":"English","publisher":"American Chemical Society","doi":"10.1021/es9704949","usgsCitation":"Anderson, R.T., Rooney-Varga, J.N., Gaw, C.V., and Lovley, D.R., 1998, Anaerobic benzene oxidation in the Fe(III) reduction zone of petroleum-contaminated aquifers: Environmental Science & Technology, v. 32, no. 9, p. 1222-1229, https://doi.org/10.1021/es9704949.","productDescription":"8 p.","startPage":"1222","endPage":"1229","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":378783,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"9","noUsgsAuthors":false,"publicationDate":"1998-03-18","publicationStatus":"PW","contributors":{"authors":[{"text":"Anderson, Robert T.","contributorId":178193,"corporation":false,"usgs":true,"family":"Anderson","given":"Robert","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":799674,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rooney-Varga, Juliette N.","contributorId":241455,"corporation":false,"usgs":false,"family":"Rooney-Varga","given":"Juliette","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":799675,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gaw, Catherine V.","contributorId":241456,"corporation":false,"usgs":false,"family":"Gaw","given":"Catherine","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":799676,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lovley, Derek R.","contributorId":107852,"corporation":false,"usgs":true,"family":"Lovley","given":"Derek","middleInitial":"R.","affiliations":[],"preferred":false,"id":799677,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70214423,"text":"70214423 - 1998 - Anaerobic oxidation of [1,2-14C]dichloroethene under Mn(IV)-reducing conditions","interactions":[],"lastModifiedDate":"2020-09-25T19:59:12.176771","indexId":"70214423","displayToPublicDate":"1998-09-25T14:54:54","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":850,"text":"Applied and Environmental Microbiology","active":true,"publicationSubtype":{"id":10}},"title":"Anaerobic oxidation of [1,2-14C]dichloroethene under Mn(IV)-reducing conditions","docAbstract":"

Anaerobic oxidation of [1,2-14C]dichloroethene to14CO2 under Mn(IV)-reducing conditions was demonstrated. The results indicate that oxidative degradation of partially chlorinated solvents like dichloroethene can be significant even under anoxic conditions and demonstrate the potential importance of Mn(IV) reduction for remediation of chlorinated groundwater contaminants.

","language":"English","publisher":"American Society for Microbiology","doi":"10.1128/AEM.64.4.1560-1562.1998","usgsCitation":"Bradley, P., Landmeyer, J., and Dinicola, R., 1998, Anaerobic oxidation of [1,2-14C]dichloroethene under Mn(IV)-reducing conditions: Applied and Environmental Microbiology, v. 64, no. 4, p. 1560-1562, https://doi.org/10.1128/AEM.64.4.1560-1562.1998.","productDescription":"3 p.","startPage":"1560","endPage":"1562","costCenters":[{"id":559,"text":"South Carolina Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true},{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":479703,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1128/aem.64.4.1560-1562.1998","text":"Publisher Index Page"},{"id":378782,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"64","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bradley, Paul","contributorId":218335,"corporation":false,"usgs":true,"family":"Bradley","given":"Paul","affiliations":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":true,"id":799671,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Landmeyer, James 0000-0002-5640-3816 jlandmey@usgs.gov","orcid":"https://orcid.org/0000-0002-5640-3816","contributorId":3257,"corporation":false,"usgs":true,"family":"Landmeyer","given":"James","email":"jlandmey@usgs.gov","affiliations":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"preferred":true,"id":799672,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dinicola, Richard S. 0000-0003-4222-294X dinicola@usgs.gov","orcid":"https://orcid.org/0000-0003-4222-294X","contributorId":352,"corporation":false,"usgs":true,"family":"Dinicola","given":"Richard S.","email":"dinicola@usgs.gov","affiliations":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true}],"preferred":true,"id":799673,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70206470,"text":"70206470 - 1998 - Factors influencing cattail abundance in the northern Everglades","interactions":[],"lastModifiedDate":"2019-11-06T11:22:12","indexId":"70206470","displayToPublicDate":"1998-09-16T11:09:28","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":861,"text":"Aquatic Botany","active":true,"publicationSubtype":{"id":10}},"title":"Factors influencing cattail abundance in the northern Everglades","docAbstract":"

Since the early 1900s, the Everglades have been influenced by anthropogenic actions including altered hydrology and increased nutrient loading. In the northern Everglades an apparent effect of these disturbances has been the development and proliferation of dense cattail (Typha spp. ) stands in areas previously dominated by sawgrass (Cladium jamaicense Crantz) and sloughs. Cattail cover, soil nutrient concentrations, topography and fire history were determined for the Holey Land and Rotenberger Wildlife Management Areas, located in the northern Everglades. These data were analyzed using multiple regression to assess the relative influence of fire, hydrology and soil nutrients on cattail abundance. Holey Land and Rotenberger were overdrained over recent decades which resulted in soil compaction and nutrient accumulation, illustrated by increased soil bulk densities and elevated nutrient storage. Average bulk densities were 0.13 g cm−3 for Holey Land and 0.22 g cm−3 for Rotenberger. Average total P (TP) stored in the surface 10 cm of soil in Holey Land and Rotenberger were 7 and 13 g m−2, respectively. In contrast, Everglades soils uninfluenced by nutrient enrichment and with less severe overdrainage have bulk densities of 0.07 g cm−3 and TP storage of 4 g m−2. Typically, elevated soil P concentrations have been considered a primary factor influencing cattail growth and distribution in the Everglades. With the apparent absence of P limitation in Holey Land and Rotenberger, cattail abundance was influenced by either fire or hydrology. Forty-six percent of the variation of cattail cover in Holey Land was explained by elevation, indicating that increased water depth and duration of flooding have a significant impact on cattail expansion. In Rotenberger, fire was the most influential factor, explaining 57% of the variation in cattail cover. Hydrology was the second most important factor limiting cattail abundance.

","language":"English","publisher":"Elsevier","doi":"10.1016/S0304-3770(97)00089-2","usgsCitation":"Newman, S., Schuette, J., Grace, J.B., Rutchey, K., Fontaine, T., Reddy, K., and Pietrucha, M., 1998, Factors influencing cattail abundance in the northern Everglades: Aquatic Botany, v. 60, no. 3, p. 265-280, https://doi.org/10.1016/S0304-3770(97)00089-2.","productDescription":"16 p.","startPage":"265","endPage":"280","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":368968,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Holey Land Wildlife Management Area, Northern Everglades, Rotenberger Wildlife Management Area","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.88546752929688,\n 26.46012332908788\n ],\n [\n -80.88203430175781,\n 26.329729911610876\n ],\n [\n -80.63346862792967,\n 26.334653090413187\n ],\n [\n -80.6396484375,\n 26.360496343302067\n ],\n [\n -80.68702697753906,\n 26.365418213012244\n ],\n [\n -80.69183349609375,\n 26.439835922524356\n ],\n [\n -80.81199645996094,\n 26.437376600127735\n ],\n [\n -80.82366943359375,\n 26.47917793965339\n ],\n [\n -80.8538818359375,\n 26.481021766757866\n ],\n [\n -80.85319519042969,\n 26.46319686677677\n ],\n [\n -80.87173461914062,\n 26.465040949997295\n ],\n [\n -80.88546752929688,\n 26.46012332908788\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"60","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Newman, S.","contributorId":7678,"corporation":false,"usgs":true,"family":"Newman","given":"S.","affiliations":[],"preferred":false,"id":774752,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schuette, J.","contributorId":220322,"corporation":false,"usgs":false,"family":"Schuette","given":"J.","email":"","affiliations":[],"preferred":false,"id":774753,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grace, James B. 0000-0001-6374-4726 gracej@usgs.gov","orcid":"https://orcid.org/0000-0001-6374-4726","contributorId":884,"corporation":false,"usgs":true,"family":"Grace","given":"James","email":"gracej@usgs.gov","middleInitial":"B.","affiliations":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":774754,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rutchey, K.","contributorId":35825,"corporation":false,"usgs":true,"family":"Rutchey","given":"K.","email":"","affiliations":[],"preferred":false,"id":774755,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fontaine, T.","contributorId":220323,"corporation":false,"usgs":false,"family":"Fontaine","given":"T.","email":"","affiliations":[],"preferred":false,"id":774756,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Reddy, K.R.","contributorId":28096,"corporation":false,"usgs":true,"family":"Reddy","given":"K.R.","email":"","affiliations":[],"preferred":false,"id":774757,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pietrucha, M.","contributorId":220324,"corporation":false,"usgs":false,"family":"Pietrucha","given":"M.","email":"","affiliations":[],"preferred":false,"id":774758,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70185266,"text":"70185266 - 1998 - Enhanced dissolution of cinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades","interactions":[],"lastModifiedDate":"2019-02-04T09:39:26","indexId":"70185266","displayToPublicDate":"1998-09-04T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Enhanced dissolution of cinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades","docAbstract":"

Organic matter isolated from the Florida Everglades caused a dramatic increase in mercury release (up to 35 μM total dissolved mercury) from cinnabar (HgS), a solid with limited solubility. Hydrophobic (a mixture of both humic and fulvic) acids dissolved more mercury than hydrophilic acids and other nonacid fractions of dissolved organic matter (DOM). Cinnabar dissolution by isolated organic matter and natural water samples was inhibited by cations such as Ca2+. Dissolution was independent of oxygen content in experimental solutions. Dissolution experiments conducted in DI water (pH = 6.0) had no detectable (<2.5 nM) dissolved mercury. The presence of various inorganic (chloride, sulfate, or sulfide) and organic ligands (salicylic acid, acetic acid, EDTA, or cysteine) did not enhance the dissolution of mercury from the mineral. Aromatic carbon content in the isolates (determined by 13C NMR) correlated positively with enhanced cinnabar dissolution. ζ-potential measurements indicated sorption of negatively charged organic matter to the negatively charged cinnabar (pHpzc = 4.0) at pH 6.0. Possible mechanisms of dissolution include surface complexation of mercury and oxidation of surface sulfur species by the organic matter.

","language":"English","publisher":"American Chemical Society","doi":"10.1021/es9804058","usgsCitation":"Ravichandran, M., Aiken, G.R., Reddy, M.M., and Ryan, J.N., 1998, Enhanced dissolution of cinnabar (mercuric sulfide) by dissolved organic matter isolated from the Florida Everglades: Environmental Science & Technology, v. 32, no. 21, p. 3305-3311, https://doi.org/10.1021/es9804058.","productDescription":"7 p. ","startPage":"3305","endPage":"3311","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":337802,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Everglades","volume":"32","issue":"21","noUsgsAuthors":false,"publicationDate":"1998-09-04","publicationStatus":"PW","scienceBaseUri":"58ccf59fe4b0849ce97f0cf0","contributors":{"authors":[{"text":"Ravichandran, Mahalingam","contributorId":189476,"corporation":false,"usgs":false,"family":"Ravichandran","given":"Mahalingam","email":"","affiliations":[],"preferred":false,"id":684936,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aiken, George R. 0000-0001-8454-0984 graiken@usgs.gov","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":1322,"corporation":false,"usgs":true,"family":"Aiken","given":"George","email":"graiken@usgs.gov","middleInitial":"R.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":684937,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Reddy, Michael M. mmreddy@usgs.gov","contributorId":684,"corporation":false,"usgs":true,"family":"Reddy","given":"Michael","email":"mmreddy@usgs.gov","middleInitial":"M.","affiliations":[{"id":145,"text":"Branch of Regional Research-Central Region","active":false,"usgs":true}],"preferred":true,"id":684938,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ryan, Joseph N.","contributorId":54290,"corporation":false,"usgs":false,"family":"Ryan","given":"Joseph","email":"","middleInitial":"N.","affiliations":[{"id":604,"text":"University of Colorado- Boulder","active":false,"usgs":true}],"preferred":false,"id":684939,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":28985,"text":"wri974199 - 1998 - Hydrogeology and simulation of the effects of reclaimed-water application in west Orange and southeast Lake counties, Florida","interactions":[],"lastModifiedDate":"2012-02-02T00:08:48","indexId":"wri974199","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"97-4199","title":"Hydrogeology and simulation of the effects of reclaimed-water application in west Orange and southeast Lake counties, Florida","docAbstract":"Wastewater reclamation and reuse has become increasingly popular as water agencies search for alternative water-supply and wastewater-disposal options. Several governmental agencies in central Florida currently use the land-based application of reclaimed water (wastewater that has been treated beyond secondary treatment) as a management alternative to surface-water disposal of wastewater. Water Conserv II, a water reuse project developed jointly by Orange County and the City of Orlando, began operation in December 1986. In 1995, the Water Conserv II facility distributed approximately 28 Mgal/d of reclaimed water for discharge to rapid-infiltration basins (RIBs) and for use as agricultural irrigation. The Reedy Creek Improvement District (RCID) began operation of RIBs in September 1990, and in 1995 these RIBs received approximately 6.7 Mgal/d of reclaimed water. Analyses of existing data and data collected during the course of this study were combined with ground-water flow modeling and particle-tracking analyses to develop a process-oriented evaluation of the regional effects of reclaimed water applied by Water Conserv II and the RCID RIBs on the hydrology of west Orange and southeast Lake Counties. The ground-water flow system beneath the study area is a multi-aquifer system that consists of a thick sequence of highly permeable carbonate rocks overlain by unconsolidated sediments. The hydrogeologic units are the unconfined surficial aquifer system, the intermediate confining unit, and the confined Floridan aquifer system, which consists of two major permeable zones, the Upper and Lower Floridan aquifers, separated by the less permeable middle semiconfining unit. Flow in the surficial aquifer system is dominated regionally by diffuse downward leakage to the Floridan aquifer system and is affected locally by lateral flow systems produced by streams, lakes, and spatial variations in recharge. Ground water generally flows laterally through the Upper Floridan aquifer aquifer to the north and east. Many of the lakes in the study area are landlocked because the mantled karst environment precludes a well developed network of surface-water drainage. The USGS three-dimensional ground-water flow model MODFLOW was used to simulate ground-water flow in the surficial and Floridan aquifer systems. A steady-state calibration to average 1995 conditions was performed by using a parameter estimation program to vary values of surficial aquifer system hydraulic conductivity, intermediate confining unit leakance, and Upper Floridan aquifer transmissivity. The calibrated model generally produced simulated water levels in close agreement with measured water levels and was used to simulate the hydrologic effects of reclaimed-water application under current (1995) and proposed future conditions. In 1995, increases of up to about 40 ft in the water table and less than 5 ft in the Upper Floridan aquifer potentiometric surface had occurred as a result of reclaimed-water application. The largest increases were under RIB sites. An average traveltime of 10 years at Water Conserv II and 7 years at the RCID RIBs was required for reclaimed water to move from the water table to the top of the Upper Floridan aquifer. Approximately 67 percent of the reclaimed water applied at the RCID RIB site recharged the Floridan aquifer system, whereas 33 percent discharged from the surficial aquifer system to surface-water features; 99 percent of the reclaimed water applied at Water Conserv II recharged the Floridan aquifer system, whereas only 1 percent discharged from the surficial aquifer system to surface-water features. The majority of reclaimed water applied at both facilities probably will ultimately discharge from the Floridan aquifer system outside the model boundaries. Proposed future conditions were assumed to consist of an additional 11.7 Mgal/d of reclaimed water distributed by the Water Conserv II and RCID facilities. Increases of up to about 20 ft in the water","language":"ENGLISH","publisher":"U.S. Dept. of the Interior, U.S. Geological Survey ;\r\nBranch of Information Services [distributor],","doi":"10.3133/wri974199","usgsCitation":"O’Reilly, A.M., 1998, Hydrogeology and simulation of the effects of reclaimed-water application in west Orange and southeast Lake counties, Florida: U.S. Geological Survey Water-Resources Investigations Report 97-4199, vi, 91 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri974199.","productDescription":"vi, 91 p. :ill., maps ;28 cm.","costCenters":[],"links":[{"id":2269,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.water.usgs.gov/wri974199/","linkFileType":{"id":5,"text":"html"}},{"id":121719,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_97_4199.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adae4b07f02db685537","contributors":{"authors":[{"text":"O’Reilly, Andrew M. 0000-0003-3220-1248 aoreilly@usgs.gov","orcid":"https://orcid.org/0000-0003-3220-1248","contributorId":2184,"corporation":false,"usgs":true,"family":"O’Reilly","given":"Andrew","email":"aoreilly@usgs.gov","middleInitial":"M.","affiliations":[{"id":5051,"text":"FLWSC-Orlando","active":true,"usgs":true}],"preferred":true,"id":200735,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70174936,"text":"70174936 - 1998 - Effects of landcover, water redistribution, and temperature on ecosystem processes in the South Plate Basin","interactions":[],"lastModifiedDate":"2018-02-21T15:45:27","indexId":"70174936","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Effects of landcover, water redistribution, and temperature on ecosystem processes in the South Plate Basin","docAbstract":"

Over one-third of the land area in the South Platte Basin of Colorado, Nebraska, and Wyoming, has been converted to croplands. Irrigated cropland now comprises 8% of the basin, while dry croplands make up 31%. We used the RHESSys model to compare the changes in plant productivity and vegetation-related hydrological processes that occurred as a result of either land cover alteration or directional temperature changes (−2°C, +4°C). Land cover change exerted more control over annual plant productivity and water fluxes for converted grasslands, while the effect of temperature changes on productivity and water fluxes was stronger in the mountain vegetation. Throughout the basin, land cover change increased the annual loss of water to the atmosphere by 114 mm via evaporation and transpiration, an increase of 37%. Both irrigated and nonirrigated grains became active earlier in the year than shortgrass steppe, leading to a seasonal shift in water losses to the atmosphere. Basin-wide photosynthesis increased by 80% due to grain production. In contrast, a 4°C warming scenario caused annual transpiration to increase by only 3% and annual evaporation to increase by 28%, for a total increase of 71 mm. Warming decreased basin-wide photosynthesis by 16%. There is a large elevational range from east to west in the South Platte Basin, which encompasses the western edge of the Great Plains and the eastern front of the Rocky Mountains. This elevational gain is accompanied by great changes in topographic complexity, vegetation type, and climate. Shortgrass steppe and crops found at elevations between 850 and 1800 m give way to coniferous forests and tundra between 1800 and 4000 m. Climate is increasingly dominated by winter snow precipitation with increasing elevation, and the timing of snowmelt influences tundra and forest ecosystem productivity, soil moisture, and downstream discharge. Mean annual precipitation of <500 mm on the plains below 1800 m is far less than potential evapotranspiration of 1000–1500 mm and is insufficient for optimum plant productivity. The changes in water flux and photosynthesis from conversion of steppe to cropland are the result of redistribution of snowmelt water from the mountains and groundwater pumping through irrigation projects.

","language":"English","publisher":"Ecological Society of America","doi":"10.1890/1051-0761(1998)008[1037:EOLCWR]2.0.CO;2","usgsCitation":"Baron, J., Hartman, M., Kittel, T.G., Band, L., Ojima, D.S., and Lammers, R., 1998, Effects of landcover, water redistribution, and temperature on ecosystem processes in the South Plate Basin: Ecological Applications, v. 8, no. 4, p. 1037-1051, https://doi.org/10.1890/1051-0761(1998)008[1037:EOLCWR]2.0.CO;2.","productDescription":"15 p.","startPage":"1037","endPage":"1051","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":325544,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57934445e4b0eb1ce79e8bed","contributors":{"authors":[{"text":"Baron, Jill 0000-0002-5902-6251 jill_baron@usgs.gov","orcid":"https://orcid.org/0000-0002-5902-6251","contributorId":194124,"corporation":false,"usgs":true,"family":"Baron","given":"Jill","email":"jill_baron@usgs.gov","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":643228,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hartman, M.D.","contributorId":7671,"corporation":false,"usgs":true,"family":"Hartman","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":643229,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kittel, Timothy G.F.","contributorId":66612,"corporation":false,"usgs":true,"family":"Kittel","given":"Timothy","email":"","middleInitial":"G.F.","affiliations":[],"preferred":false,"id":643230,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Band, L.E.","contributorId":70342,"corporation":false,"usgs":true,"family":"Band","given":"L.E.","email":"","affiliations":[],"preferred":false,"id":643231,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ojima, D. S.","contributorId":13166,"corporation":false,"usgs":true,"family":"Ojima","given":"D.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":643232,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lammers, R.B.","contributorId":67469,"corporation":false,"usgs":true,"family":"Lammers","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":643233,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":67584,"text":"i2627 - 1998 - Bedrock geologic map of the Yucca Mountain area, Nye County, Nevada","interactions":[],"lastModifiedDate":"2017-05-31T10:56:50","indexId":"i2627","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":320,"text":"IMAP","code":"I","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"2627","subseriesTitle":"GIS","title":"Bedrock geologic map of the Yucca Mountain area, Nye County, Nevada","docAbstract":"

Yucca Mountain, Nye County, Nevada, has been identified as a potential site for underground storage of high-level radioactive nuclear waste. Detailed bedrock geologic maps form an integral part of the site characterization program by providing the fundamental framework for research into the geologic hazards and hydrologic behavior of the mountain. This bedrock geologic map provides the geologic framework and structural setting for the area in and adjacent to the site of the potential repository.

The study area comprises the northern and central parts of Yucca Mountain, located on the southern flank of the Timber Mountain-Oasis Valley caldera complex, which was the source for many of the volcanic units in the area. The Timber Mountain-Oasis Valley caldera complex is part of the Miocene southwestern Nevada volcanic field, which is within the Walker Lane belt. This tectonic belt is a northwest-striking megastructure lying between the more active Inyo-Mono and Basin-and-Range subsections of the southwestern Great Basin.

Excluding Quaternary surficial deposits, the map area is underlain by Miocene volcanic rocks, principally ash-flow tuffs with lesser amounts of lava flows. These volcanic units include the Crater Flat Group, the Calico Hills Formation, the Paintbrush Group, and the Timber Mountain Group, as well as minor basaltic dikes. The tuffs and lava flows are predominantly rhyolite with lesser amounts of latite and range in age from 13.4 to 11.6 Ma. The 10-Ma basaltic dikes intruded along a few fault traces in the north-central part of the study area.

Fault types in the area can be classified as block bounding, relay structures, strike slip, and intrablock. The block-bounding faults separate the 1- to 4-km-wide, east-dipping structural blocks and exhibit hundreds of meters of displacement. The relay structures are northwest-striking normal fault zones that kinematically link the block-bounding faults. The strike-slip faults are steep, northwest-striking dextral faults located in the northern part of Yucca Mountain. The intrablock faults are modest faults of limited offset (tens of meters) and trace length (less than 7 km) that accommodated intrablock deformation.

The concept of structural domains provides a useful tool in delineating and describing variations in structural style. Domains are defined across the study area on the basis of the relative amount of internal faulting, style of deformation, and stratal dips. In general, there is a systematic north to south increase in extensional deformation as recorded in the amount of offset along the block-bounding faults as well as an increase in the intrablock faulting.

The rocks in the map area had a protracted history of Tertiary extension. Rocks of the Paintbrush Group cover much of the area and obscure evidence for older tectonism. An earlier history of Tertiary extension can be inferred, however, because the Timber Mountain-Oasis Valley caldera complex lies within and cuts an older north-trending rift (the Kawich-Greenwater rift}. Evidence for deformation during eruption of the Paintbrush Group is locally present as growth structures. Post-Paintbrush Group, pre-Timber Mountain Group extension occurred along the block-bounding faults. The basal contact of the 11.6-Ma Rainier Mesa Tuff of the Timber Mountain Group provides a key time horizon throughout the area. Other workers have shown that west of the study area in northern Crater Flat the basal angular unconformity is as much as 20° between the Rainier Mesa and underlying Paintbrush Group rocks. In the westernmost part of the study area the unconformity is smaller (less than 10°), whereas in the central and eastern parts of the map area the contact is essentially conformable. In the central part of the map the Rainier Mesa Tuff laps over fault splays within the Solitario Canyon fault zone. However, displacement did occur on the block-bounding faults after deposition of the Rainier Mesa Tuff inasmuch as it is locally caught up in the hanging-wall deformation of the block-bounding faults. Therefore, the regional Tertiary to Recent extension was protracted, occurring prior to and after the eruption of the tuffs exposed at Yucca Mountain.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/i2627","isbn":"0607897392","collaboration":"Prepared in cooperation with the Nevada Operations Office, U.S. Department of Energy","usgsCitation":"Day, W.C., Dickerson, R.P., Potter, C.J., Sweetkind, D., San Juan, C.A., Drake, R., and Fridrich, C.J., 1998, Bedrock geologic map of the Yucca Mountain area, Nye County, Nevada: U.S. Geological Survey IMAP 2627, Report: ii, 21 p.; Map: 44.00 x 34.00 inches, https://doi.org/10.3133/i2627.","productDescription":"Report: ii, 21 p.; Map: 44.00 x 34.00 inches","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":6141,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/imap/i-2627/","linkFileType":{"id":5,"text":"html"}},{"id":91703,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/imap/2627/report.pdf","text":"Report","size":"3.64 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":108351,"rank":700,"type":{"id":15,"text":"Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_13086.htm","linkFileType":{"id":5,"text":"html"},"description":"13086"},{"id":186543,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/imap/2627/report-thumb.jpg"},{"id":341912,"rank":5,"type":{"id":26,"text":"Sheet"},"url":"https://pubs.usgs.gov/imap/i-2627/i2627.pdf","text":"Map","size":"9.76 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Map"}],"scale":"24000","country":"United States","state":"Nevada","county":"Nye County","otherGeospatial":"Yucca Mountain area","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -116.5,36.766666666666666 ], [ -116.5,36.916666666666664 ], [ -116.38333333333334,36.916666666666664 ], [ -116.38333333333334,36.766666666666666 ], [ -116.5,36.766666666666666 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db6360e9","contributors":{"authors":[{"text":"Day, Warren C. 0000-0002-9278-2120 wday@usgs.gov","orcid":"https://orcid.org/0000-0002-9278-2120","contributorId":1308,"corporation":false,"usgs":true,"family":"Day","given":"Warren","email":"wday@usgs.gov","middleInitial":"C.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":276804,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dickerson, Robert P.","contributorId":6461,"corporation":false,"usgs":true,"family":"Dickerson","given":"Robert","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":276806,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Potter, Christopher J. 0000-0002-2300-6670 cpotter@usgs.gov","orcid":"https://orcid.org/0000-0002-2300-6670","contributorId":1026,"corporation":false,"usgs":true,"family":"Potter","given":"Christopher","email":"cpotter@usgs.gov","middleInitial":"J.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":276810,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sweetkind, Donald S. dsweetkind@usgs.gov","contributorId":735,"corporation":false,"usgs":true,"family":"Sweetkind","given":"Donald S.","email":"dsweetkind@usgs.gov","affiliations":[{"id":271,"text":"Federal Center","active":false,"usgs":true}],"preferred":false,"id":276808,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"San Juan, Carma A. 0000-0002-9151-1919 csanjuan@usgs.gov","orcid":"https://orcid.org/0000-0002-9151-1919","contributorId":1146,"corporation":false,"usgs":true,"family":"San Juan","given":"Carma","email":"csanjuan@usgs.gov","middleInitial":"A.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":276807,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Drake, Ronald M. II rmdrake@usgs.gov","contributorId":168352,"corporation":false,"usgs":true,"family":"Drake","given":"Ronald M.","suffix":"II","email":"rmdrake@usgs.gov","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":276809,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Fridrich, Christopher J. 0000-0003-2453-6478 fridrich@usgs.gov","orcid":"https://orcid.org/0000-0003-2453-6478","contributorId":1251,"corporation":false,"usgs":true,"family":"Fridrich","given":"Christopher","email":"fridrich@usgs.gov","middleInitial":"J.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":276805,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":23196,"text":"ofr97589 - 1998 - Methods for comparing water-quality conditions among National Water-Quality Assessment Study Units, 1992-1995","interactions":[],"lastModifiedDate":"2012-02-02T00:07:57","indexId":"ofr97589","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"97-589","title":"Methods for comparing water-quality conditions among National Water-Quality Assessment Study Units, 1992-1995","docAbstract":"The National Water-Quality Assessment is based on intensive investigations of stream and ground-water quality in selected major hydrologic basins (study units) of the United States. One objective of the national assessment is to comparatively evaluate water-quality conditions within and among the different study units. Methods were developed to compare the water-quality conditions of 20 study units that were studied during 1992-1995. Two approaches were taken: (1) water-quality conditions for each study unit were ranked in relation to the findings for all study units, and (2) water-quality conditions for each study unit were compared to established criteria for the protection of human health and aquatic life.\r\n\r\nSeparate rankings were developed for several major characteristics of water quality by using selected combinations of measured values for individual constituents or properties. The water-quality characteristics that were evaluated for streams were nutrients and pesticides in water, organochlorine pesticides and polychlorinated biphenyls in bed sediment and tissue, semivolatile organic compounds and trace elements in bed sediment, fish community degradation, and stream habitat degradation. The water-quality characteristics that were evaluated for ground water were nitrate, pesticides, volatile organic compounds, dissolved solids, and radon. The water-quality rankings are relative strictly to the distribution of conditions measured at sampling sites included in developing the method. Sites in the first 20 National Water-Quality Assessment study units include a broad range of environmental settings, but are not a statistically representative sample of the Nation. > To supplement the relative rankings, established water-quality criteria were used to indicate where particular constituents may have adverse effects, and thus merit further investigation. Established water-quality criteria, which provide consistent benchmarks for national comparisons of individual constituents, were selected from a variety of sources and applied to specific constituents in the specific medium (water or sediment) appropriate for each criterion.","language":"ENGLISH","publisher":"U.S. Geological Survey ;\r\nInformation Services [distributor],","doi":"10.3133/ofr97589","issn":"0094-9140","usgsCitation":"Gilliom, R.J., Mueller, D.K., and Nowell, L.H., 1998, Methods for comparing water-quality conditions among National Water-Quality Assessment Study Units, 1992-1995: U.S. Geological Survey Open-File Report 97-589, vii, 54 p. :col, ill., map ;28 cm., https://doi.org/10.3133/ofr97589.","productDescription":"vii, 54 p. :col, ill., map ;28 cm.","costCenters":[],"links":[{"id":1329,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://ca.water.usgs.gov/pnsp/rep/ofr97589/","linkFileType":{"id":5,"text":"html"}},{"id":155277,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1997/0589/report-thumb.jpg"},{"id":52516,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1997/0589/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a51e4b07f02db62a194","contributors":{"authors":[{"text":"Gilliom, Robert J. rgilliom@usgs.gov","contributorId":488,"corporation":false,"usgs":true,"family":"Gilliom","given":"Robert","email":"rgilliom@usgs.gov","middleInitial":"J.","affiliations":[{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"preferred":true,"id":189617,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mueller, David K. mueller@usgs.gov","contributorId":1585,"corporation":false,"usgs":true,"family":"Mueller","given":"David","email":"mueller@usgs.gov","middleInitial":"K.","affiliations":[{"id":503,"text":"Office of Water Quality","active":true,"usgs":true}],"preferred":true,"id":189619,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nowell, Lisa H. 0000-0001-5417-7264 lhnowell@usgs.gov","orcid":"https://orcid.org/0000-0001-5417-7264","contributorId":490,"corporation":false,"usgs":true,"family":"Nowell","given":"Lisa","email":"lhnowell@usgs.gov","middleInitial":"H.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true}],"preferred":true,"id":189618,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":6161,"text":"pp1585 - 1998 - Hydrology of the Bonneville Salt Flats, northwestern Utah, and simulation of ground-water flow and solute transport in the shallow-brine aquifer","interactions":[],"lastModifiedDate":"2019-10-08T13:34:18","indexId":"pp1585","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1585","title":"Hydrology of the Bonneville Salt Flats, northwestern Utah, and simulation of ground-water flow and solute transport in the shallow-brine aquifer","docAbstract":"This report describes the hydrologic system of the Bonneville Salt Flats with emphasis on the mechanisms of solute transport. Variable-density, three-dimensional computer simulations of the near-surface part of the ground-water system were done to quantify both the transport of salt dissolved in subsurface brine that leaves the salt-crust area and the salt dissolved and precipitated on the land surface. The study was designed to define the hydrology of the brine ground-water system and the natural and anthropogenic processes causing salt loss, and where feasible, to quantify these processes. Specific areas of study include the transport of salt in solution by ground-water flow and the transport of salt in solution by wind-driven ponds and the subsequent salt precipitation on the surface of the playa upon evaporation or seepage into the subsurface. In addition, hydraulic and chemical changes in the hydrologic system since previous studies were documented.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Denver, CO","doi":"10.3133/pp1585","isbn":"0-607-88306-5","collaboration":"Prepared in cooperation with the Bureau of Land Management","usgsCitation":"Mason, J.L., and Kipp, K.L., 1998, Hydrology of the Bonneville Salt Flats, northwestern Utah, and simulation of ground-water flow and solute transport in the shallow-brine aquifer: U.S. Geological Survey Professional Paper 1585, viii, 108 p., https://doi.org/10.3133/pp1585.","productDescription":"viii, 108 p.","numberOfPages":"120","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"links":[{"id":123274,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1585/report-thumb.jpg"},{"id":33265,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1585/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Utah","otherGeospatial":"Bonneville Salt Flats","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -114.0380859375,\n 40.1452892956766\n ],\n [\n -113.12072753906249,\n 40.1452892956766\n ],\n [\n -113.12072753906249,\n 40.78470081841747\n ],\n [\n -114.0380859375,\n 40.78470081841747\n ],\n [\n -114.0380859375,\n 40.1452892956766\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db601ec1","contributors":{"authors":[{"text":"Mason, James L.","contributorId":14397,"corporation":false,"usgs":true,"family":"Mason","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":152221,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kipp, Kenneth L. klkipp@usgs.gov","contributorId":1633,"corporation":false,"usgs":true,"family":"Kipp","given":"Kenneth","email":"klkipp@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":152220,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":21942,"text":"ofr97234 - 1998 - Methods for collection of dissolved sulfate and sulfide and analysis of their sulfur isotopic composition","interactions":[],"lastModifiedDate":"2019-10-09T14:45:02","indexId":"ofr97234","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"97-234","title":"Methods for collection of dissolved sulfate and sulfide and analysis of their sulfur isotopic composition","docAbstract":"

No abstract available. 

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr97234","issn":"0094-9140","usgsCitation":"Carmody, R., Plummer, N., Busenberg, E., and Coplen, T., 1998, Methods for collection of dissolved sulfate and sulfide and analysis of their sulfur isotopic composition: U.S. Geological Survey Open-File Report 97-234, x, 91 p. , https://doi.org/10.3133/ofr97234.","productDescription":"x, 91 p. ","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":51417,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1997/0234/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":153682,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1997/0234/report-thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a51e4b07f02db62a191","contributors":{"authors":[{"text":"Carmody, R.W.","contributorId":65103,"corporation":false,"usgs":true,"family":"Carmody","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":186353,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Plummer, Niel 0000-0002-4020-1013 nplummer@usgs.gov","orcid":"https://orcid.org/0000-0002-4020-1013","contributorId":190100,"corporation":false,"usgs":true,"family":"Plummer","given":"Niel","email":"nplummer@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":186354,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Busenberg, Eurybiades ebusenbe@usgs.gov","contributorId":2271,"corporation":false,"usgs":true,"family":"Busenberg","given":"Eurybiades","email":"ebusenbe@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":186351,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Coplen, T.B.","contributorId":34147,"corporation":false,"usgs":true,"family":"Coplen","given":"T.B.","affiliations":[],"preferred":false,"id":186352,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":22765,"text":"ofr9862 - 1998 - Evaluation of geophysical logs, phase I, for Crossley Farms Superfund Site, Berks County, Pennsylvania","interactions":[],"lastModifiedDate":"2018-06-22T13:58:13","indexId":"ofr9862","displayToPublicDate":"1998-09-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-62","title":"Evaluation of geophysical logs, phase I, for Crossley Farms Superfund Site, Berks County, Pennsylvania","docAbstract":"

Twenty-one wells were drilled at Crossley Farms Superfund Site between December 15, 1987, and May 1, 1988, to define and monitor the horizontal and vertical distribution of ground-water contamination emanating from a suspected contaminant source area (Blackhead Hill). Eight well clusters were drilled on or near the Crossley Site and three well clusters were drilled at locations hydrologically down gradient from the site. Depths of wells range from 21 to 299 feet below land surface. These wells were installed in saprolite in shallow, intermediate, and deep water-producing zones of the fractured bedrock aquifer.

Borehole-geophysical and video logging were conducted between April 24, 1997, and May 8, 1997, to determine the water-producing zones, water-receiving zones, zones of vertical flow, borehole depth, and casing integrity in each well. This data and interpretation will be used to determine the location of the well intake for the existing open-hole wells, which will be retrofitted to isolate and monitor water-producing zones and prevent further cross-contamination within each open borehole, and identify wells that may need rehabilitation or replacement.

Caliper and video logs were used to locate fractures, inflections on fluid-temperature and fluid-resistivity logs indicated possible fluid-bearing fractures, and flowmeter measurements verified these locations. Single-point-resistance and natural-gamma logs provided information on stratigraphy. After interpretation of geophysical logs, video logs, and driller's notes, all wells will be constructed so that water-level fluctuations can be monitored and discrete water samples collected from shallow, intermediate, and deep water-bearing zones in each well.

Geophysical logs were run on seven bedrock and two deep bedrock wells. Gamma logs were run on 10 bedrock wells. Twenty-two wells were inspected visually with the borehole video camera for casing integrity.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr9862","issn":"0094-9140","collaboration":"Prepared in cooperation with the U.S. Environmental Protection Agency","usgsCitation":"Conger, R.W., 1998, Evaluation of geophysical logs, phase I, for Crossley Farms Superfund Site, Berks County, Pennsylvania: U.S. Geological Survey Open-File Report 98-62, v, 26 p. :ill., col. map ;28 cm., https://doi.org/10.3133/ofr9862.","productDescription":"v, 26 p. :ill., col. map ;28 cm.","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"links":[{"id":350707,"rank":4,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1998/0062/ofr19980062.pdf","text":"Report","size":"646 KB","linkFileType":{"id":1,"text":"pdf"},"description":"OFR 1998-0062"},{"id":157050,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1998/0062/coverthb.jpg"}],"contact":"

Director, Pennsylvania Water Science Center
U.S. Geological Survey
215 Limekiln Road
New Cumberland, PA 17070

","tableOfContents":"","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fae22","contributors":{"authors":[{"text":"Conger, Randall W. rwconger@usgs.gov","contributorId":2086,"corporation":false,"usgs":true,"family":"Conger","given":"Randall","email":"rwconger@usgs.gov","middleInitial":"W.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":188833,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70198544,"text":"70198544 - 1998 - Use of 13C NMR and FTIR for elucidation of degradation pathways during natural litter decomposition and compositing. II. Changes in leaf composition after senescence","interactions":[],"lastModifiedDate":"2018-08-13T10:13:45","indexId":"70198544","displayToPublicDate":"1998-08-07T10:32:16","publicationYear":"1998","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Use of 13C NMR and FTIR for elucidation of degradation pathways during natural litter decomposition and compositing. II. Changes in leaf composition after senescence","docAbstract":"

No abstract available. 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Humic substances structures, properties, and uses","language":"English","publisher":"Royal Society of Chemistry","usgsCitation":"Wershaw, R.L., Kennedy, K.R., and Henrich, J., 1998, Use of 13C NMR and FTIR for elucidation of degradation pathways during natural litter decomposition and compositing. II. Changes in leaf composition after senescence, chap. of Humic substances structures, properties, and uses, p. 29-46.","productDescription":"18 p.","startPage":"29","endPage":"46","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":356268,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b98de78e4b0702d0e84866f","contributors":{"authors":[{"text":"Wershaw, Robert L. rwershaw@usgs.gov","contributorId":4856,"corporation":false,"usgs":true,"family":"Wershaw","given":"Robert","email":"rwershaw@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":741848,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kennedy, K. R.","contributorId":66267,"corporation":false,"usgs":true,"family":"Kennedy","given":"K.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":741849,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Henrich, J.E.","contributorId":206814,"corporation":false,"usgs":false,"family":"Henrich","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":741850,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70093566,"text":"70093566 - 1998 - An empirical method for estimating travel times for wet volcanic mass flows","interactions":[],"lastModifiedDate":"2014-02-07T10:04:11","indexId":"70093566","displayToPublicDate":"1998-08-01T09:57:41","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"An empirical method for estimating travel times for wet volcanic mass flows","docAbstract":"Travel times for wet volcanic mass flows (debris avalanches and lahars) can be forecast as a function of distance from source when the approximate flow rate (peak discharge near the source) can be estimated beforehand. The near-source flow rate is primarily a function of initial flow volume, which should be possible to estimate to an order of magnitude on the basis of geologic, geomorphic, and hydrologic factors at a particular volcano. Least-squares best fits to plots of flow-front travel time as a function of distance from source provide predictive second-degree polynomial equations with high coefficients of determination for four broad size classes of flow based on near-source flow rate: extremely large flows (>1 000 000 m3/s), very large flows (10 000–1 000 000 m3/s), large flows (1000–10 000 m3/s), and moderate flows (100–1000 m3/s). A strong nonlinear correlation that exists between initial total flow volume and flow rate for \"instantaneously\" generated debris flows can be used to estimate near-source flow rates in advance. Differences in geomorphic controlling factors among different flows in the data sets have relatively little effect on the strong nonlinear correlations between travel time and distance from source. Differences in flow type may be important, especially for extremely large flows, but this could not be evaluated here. At a given distance away from a volcano, travel times can vary by approximately an order of magnitude depending on flow rate. The method can provide emergency-management officials a means for estimating time windows for evacuation of communities located in hazard zones downstream from potentially hazardous volcanoes.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Volcanology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer-Verlag","doi":"10.1007/s004450050219","usgsCitation":"Pierson, T.C., 1998, An empirical method for estimating travel times for wet volcanic mass flows: Bulletin of Volcanology, v. 60, no. 2, p. 98-109, https://doi.org/10.1007/s004450050219.","productDescription":"12 p.","startPage":"98","endPage":"109","numberOfPages":"12","costCenters":[{"id":157,"text":"Cascades Volcano Observatory","active":false,"usgs":true}],"links":[{"id":282103,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":282100,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s004450050219"}],"volume":"60","issue":"2","noUsgsAuthors":false,"publicationDate":"1998-08-01","publicationStatus":"PW","scienceBaseUri":"53cd4c75e4b0b290850f1002","contributors":{"authors":[{"text":"Pierson, Thomas C. 0000-0001-9002-4273 tpierson@usgs.gov","orcid":"https://orcid.org/0000-0001-9002-4273","contributorId":2498,"corporation":false,"usgs":true,"family":"Pierson","given":"Thomas","email":"tpierson@usgs.gov","middleInitial":"C.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":490034,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70199197,"text":"70199197 - 1998 - Analysis and simulation of reactive transport of metal contaminants in ground water in Pinal Creek Basin, Arizona","interactions":[],"lastModifiedDate":"2018-09-10T10:00:59","indexId":"70199197","displayToPublicDate":"1998-08-01T09:57:23","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Analysis and simulation of reactive transport of metal contaminants in ground water in Pinal Creek Basin, Arizona","docAbstract":"

Large-scale mining activities have generated a plume of acidic ground water more than 15 km long in the regional aquifer of the Pinal Creek Basin. A one-dimensional reactive-transport model was developed using PHREEQC to aid in the analysis of transport and chemical processes in the plume and to determine the uses and limitations of this type of modeling approach. In 1984, the acidic part of the plume had a pH as low as 3.4 and contained milligram-per-liter concentrations of iron, copper, aluminum and other metals. From 1984 to 1994, concentrations of contaminants in the alluvial aquifer in Pinal Creek Basin, Arizona, decreased as a result of mixing, recharge, remedial pumping and chemical reactions. For reactions involving gypsum and rhodochrosite, the equilibrium modeling assumption of a local geochemical equilibrium was generally valid. From 1984 to 1990, water along the simulated flow path was at equilibrium or slightly supersaturated with gypsum, and gypsum equilibria controlled dissolved concentrations of calcium and sulfate. Beginning in 1991, water in the acidic part of the plume became increasingly undersaturated with respect to gypsum, indicating that the gypsum available for dissolution in the aquifer may have been completely consumed by about 1991. Rhodochrosite precipitation was thought responsible for the measured attenuation in dissolved manganese in the neutralized zone. For reactions involving calcite, the assumption of a local geochemical equilibrium was generally not valid. Dissolution of calcite in the transition zone was not sufficient to establish equilibrium although, following neutralization, the calcite saturation index decreased to −1.2 in 1986. Calcite undersaturation decreased along the flow path in the neutralized zone, and equilibrium was attained about 7 km downgradient of the transition zone. The assumption of a local geochemical equilibrium was not valid for oxidation–reduction reactions that involved iron oxides and manganese oxides. Kinetically controlled oxidation–reduction reactions continued in the acidic part of the flow path for years following the passage of the transition zone. Although the equilibrium approach helped to provide an increased understanding of contaminant transport at Pinal Creek, future work will require a kinetic modeling approach to more accurately simulate selected reactions between the plume and aquifer materials.

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