No abstract available.
","language":"English","publisher":"ACS","doi":"10.1021/es00027a005","issn":"0013936X","usgsCitation":"Luoma, S., Johns, C., Fisher, N., Steinberg, N., Oremland, R., and Reinfelder, J., 1992, Determination of selenium bioavailability to a benthic bivalve from particulate and solute pathways: Environmental Science & Technology, v. 26, no. 3, p. 485-491, https://doi.org/10.1021/es00027a005.","productDescription":"7 p.","startPage":"485","endPage":"491","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":224993,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"3","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5059ffc5e4b0c8380cd4f3b2","contributors":{"authors":[{"text":"Luoma, S. N.","contributorId":86353,"corporation":false,"usgs":true,"family":"Luoma","given":"S. N.","affiliations":[],"preferred":false,"id":374766,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johns, C.","contributorId":18906,"corporation":false,"usgs":true,"family":"Johns","given":"C.","email":"","affiliations":[],"preferred":false,"id":374762,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fisher, N.S.","contributorId":67668,"corporation":false,"usgs":true,"family":"Fisher","given":"N.S.","email":"","affiliations":[],"preferred":false,"id":374765,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Steinberg, N.A.","contributorId":29573,"corporation":false,"usgs":true,"family":"Steinberg","given":"N.A.","email":"","affiliations":[],"preferred":false,"id":374763,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Oremland, R.S.","contributorId":97512,"corporation":false,"usgs":true,"family":"Oremland","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":374767,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Reinfelder, J.R.","contributorId":62760,"corporation":false,"usgs":true,"family":"Reinfelder","given":"J.R.","affiliations":[],"preferred":false,"id":374764,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70016758,"text":"70016758 - 1992 - A reconnaissance study of herbicides and their metabolites in surface water of the midwestern united states using immunoassay and gas chromatography/mass spectrometry","interactions":[],"lastModifiedDate":"2019-03-14T05:20:24","indexId":"70016758","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"A reconnaissance study of herbicides and their metabolites in surface water of the midwestern united states using immunoassay and gas chromatography/mass spectrometry","docAbstract":"Preemergent herbicides and their metabolites, particularly atrazine, deethylatrazine, and metolachlor, persisted from 1989 to 1990 in the majority of rivers and streams in the midwestern United States. In spring, after the application of herbicides, the concentrations of atrazine, alachlor, and simazine were frequently 3-10 times greater than the U.S. Environmental Protection Agency maximum contaminant level (MCL). The concentration of herbicides exceeded the MCLs both singly and in combination. Two major degradation products of atrazine (deisopropylatrazine and deethylatrazine) also were found in many of the streams. The order of persistence of the herbicides and their metabolites in surface water was atrazine > deethylatrazine > metolachlor > alachlor > deisopropylatrazine > cyanazine. Storm runoff collected at several sites exceeded the MCL multiple times during the summer months as a function of stream discharge, with increased concentrations during times of increased streamflow. It is proposed that metabolites of atrazine may be used as indicators of surface-water movement into adjacent alluvial aquifers.
","language":"English","publisher":"American Chemical Society","doi":"10.1021/es00036a016","issn":"0013936X","usgsCitation":"Thurman, E.M., Goolsby, D.A., Meyer, M.T., Mills, M.S., Pomes, M., and Kolpin, D.W., 1992, A reconnaissance study of herbicides and their metabolites in surface water of the midwestern united states using immunoassay and gas chromatography/mass spectrometry: Environmental Science & Technology, v. 26, no. 12, p. 2440-2447, https://doi.org/10.1021/es00036a016.","productDescription":"8 p.","startPage":"2440","endPage":"2447","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224800,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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\"}}]}","volume":"26","issue":"12","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5059e53ae4b0c8380cd46bfe","contributors":{"authors":[{"text":"Thurman, E. Michael","contributorId":9636,"corporation":false,"usgs":true,"family":"Thurman","given":"E.","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":759258,"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":374416,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meyer, M. T.","contributorId":92279,"corporation":false,"usgs":true,"family":"Meyer","given":"M.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":374420,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mills, M. S.","contributorId":96279,"corporation":false,"usgs":true,"family":"Mills","given":"M.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":374421,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pomes, M.L.","contributorId":84393,"corporation":false,"usgs":true,"family":"Pomes","given":"M.L.","affiliations":[],"preferred":false,"id":374417,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kolpin, Dana W. 0000-0002-3529-6505 dwkolpin@usgs.gov","orcid":"https://orcid.org/0000-0002-3529-6505","contributorId":1239,"corporation":false,"usgs":true,"family":"Kolpin","given":"Dana","email":"dwkolpin@usgs.gov","middleInitial":"W.","affiliations":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"preferred":true,"id":759259,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70016869,"text":"70016869 - 1992 - Large lake basins of the southern High Plains: Ground-water control of their origin?","interactions":[],"lastModifiedDate":"2020-09-01T19:03:33.503198","indexId":"70016869","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Large lake basins of the southern High Plains: Ground-water control of their origin?","docAbstract":"The origin of the ∼40-50 topographically large lake basins on the southern High Plains of Texas and New Mexico has been an enigma. Previous workers have considered deflation or evaporite dissolution at depth and subsequent collapse as the most probable mechanisms. However, the eolian hypotheses have been unable to provide convincing arguments as to how the wind selectively erodes the thick, deflation-resistant calcrete \"caprock\" that is persistent over much of the southern High Plains. Furthermore, recent detailed studies on some of the basins show no significant evaporite dissolution at depth, and neither mechanism offers a satisfactory explanation as to why the basins are almost universally associated with subsurface topographic highs, or why they are absent where the High Plains aquifer thickness exceeds 60 m. We address these latter concerns and modify the deflation hypothesis by proposing that the calcrete caprock may never have been deposited in the areas now occupied by the basins. The absence of calcrete deposition is proposed to have resulted from high water tables caused by an increase in hydraulic gradient where aquifers thinned above bedrock highs. A high water table close to and/or intersecting the surface prevents deposition of calcrete, and, thus, the uncemented surface would be more susceptible to deflation than the surrounding calcrete-covered areas after decline of the water table. The rise in water table associated with bedrock highs is documented by numerical simulation using boundary conditions and hydrologic parameters representative of the southern High Plains.
","language":"English","publisher":"GeoScienceWorld","doi":"10.1130/0091-7613(1992)020<0535:LLBOTS>2.3.CO;2","issn":"00917613","usgsCitation":"Wood, W., Sanford, W., and Reeves, C., 1992, Large lake basins of the southern High Plains: Ground-water control of their origin?: Geology, v. 20, no. 6, p. 535-538, https://doi.org/10.1130/0091-7613(1992)020<0535:LLBOTS>2.3.CO;2.","productDescription":"4 p.","startPage":"535","endPage":"538","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224758,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a447be4b0c8380cd66b4b","contributors":{"authors":[{"text":"Wood, W.W.","contributorId":21974,"corporation":false,"usgs":true,"family":"Wood","given":"W.W.","email":"","affiliations":[],"preferred":false,"id":374703,"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":374705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Reeves, C.C. Jr.","contributorId":26080,"corporation":false,"usgs":true,"family":"Reeves","given":"C.C.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":374704,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016861,"text":"70016861 - 1992 - Semiempirical model of soil water hysteresis","interactions":[],"lastModifiedDate":"2019-03-14T06:12:59","indexId":"70016861","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3420,"text":"Soil Science Society of America Journal","active":true,"publicationSubtype":{"id":10}},"title":"Semiempirical model of soil water hysteresis","docAbstract":"In order to represent hysteretic soil water retention curves accurately using as few measurements as possible, a new semiempirical model has been developed. It has two postulates related to physical characteristics of the medium, and two parameters, each with a definite physical interpretation, whose values are determined empirically for a given porous medium. One parameter represents the fraction of the pore space that is not subject to Haines jump hysteresis. Its associated postulate is that a single value of this parameter characterizes a given medium, or, equivalently, that the medium is self-similar with respect to the division between hysteretic and nonhysteretic pore space. The second parameter is the effective body-to-neck size ratio of the medium's largest pore. The second postulate specifies a particular relation between the size distributions of pore bodies and of pore necks. Tests of the model show that it provides high-quality optimized fits to measured water content vs. matric pressure wetting curves for a wide variety of media. The parameter values obtained through optimization correlate plausibly with such media properties as uniformity of particles, complexity of structure, and degree of compaction. A practical use of this model is to provide a complete simulated main wetting curve for a medium where only a main drying curve and two points on the wetting curve have been measured. With additional development, it may be possible to do without the two measured wetting points if parameters can be evaluated from other measurements or known properties of the medium.
","language":"English","publisher":"ACSESS","doi":"10.2136/sssaj1992.03615995005600060011x","issn":"03615995","usgsCitation":"Nimmo, J., 1992, Semiempirical model of soil water hysteresis: Soil Science Society of America Journal, v. 56, no. 6, p. 1723-1730, https://doi.org/10.2136/sssaj1992.03615995005600060011x.","productDescription":"8 p.","startPage":"1723","endPage":"1730","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224662,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"56","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8d0ee4b08c986b318248","contributors":{"authors":[{"text":"Nimmo, J. R. 0000-0001-8191-1727","orcid":"https://orcid.org/0000-0001-8191-1727","contributorId":58304,"corporation":false,"usgs":true,"family":"Nimmo","given":"J. R.","affiliations":[],"preferred":false,"id":374684,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016855,"text":"70016855 - 1992 - Solution of the advection-dispersion equation by a finite-volume eulerian-lagrangian local adjoint method","interactions":[],"lastModifiedDate":"2018-10-01T09:55:46","indexId":"70016855","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Solution of the advection-dispersion equation by a finite-volume eulerian-lagrangian local adjoint method","docAbstract":"A finite-volume Eulerian-Lagrangian local adjoint method for solution of the advection-dispersion equation is developed and discussed. The method is mass conservative and can solve advection-dominated ground-water solute-transport problems accurately and efficiently. An integrated finite-difference approach is used in the method. A key component of the method is that the integral representing the mass-storage term is evaluated numerically at the current time level. Integration points, and the mass associated with these points, are then forward tracked up to the next time level. The number of integration points required to reach a specified level of accuracy is problem dependent and increases as the sharpness of the simulated solute front increases. Integration points are generally equally spaced within each grid cell. For problems involving variable coefficients it has been found to be advantageous to include additional integration points at strategic locations in each well. These locations are determined by backtracking. Forward tracking of boundary fluxes by the method alleviates problems that are encountered in the backtracking approaches of most characteristic methods. A test problem is used to illustrate that the new method offers substantial advantages over other numerical methods for a wide range of problems.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Finite Elements in Water Resources, Proceedings of the International Conference","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Proceedings of the 9th International Conference on Computational Methods in Water Resources","conferenceDate":"June 1, 1992","conferenceLocation":"Denver, CO","language":"English","publisher":"Computational Mechanics Publ","publisherLocation":"Southampton, United Kingdom","usgsCitation":"Healy, R.W., and Russell, T., 1992, Solution of the advection-dispersion equation by a finite-volume eulerian-lagrangian local adjoint method, in Finite Elements in Water Resources, Proceedings of the International Conference, v. 1, Denver, CO, June 1, 1992, p. 33-39.","productDescription":"7 p.","startPage":"33","endPage":"39","numberOfPages":"7","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224611,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9257e4b08c986b319e65","contributors":{"authors":[{"text":"Healy, R. W.","contributorId":89872,"corporation":false,"usgs":true,"family":"Healy","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":374670,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Russell, T.F.","contributorId":86811,"corporation":false,"usgs":true,"family":"Russell","given":"T.F.","email":"","affiliations":[],"preferred":false,"id":374669,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016849,"text":"70016849 - 1992 - Classifying and mapping wetlands and peat resources using digital cartography","interactions":[],"lastModifiedDate":"2012-03-12T17:18:52","indexId":"70016849","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Classifying and mapping wetlands and peat resources using digital cartography","docAbstract":"Digital cartography allows the portrayal of spatial associations among diverse data types and is ideally suited for land use and resource analysis. We have developed methodology that uses digital cartography for the classification of wetlands and their associated peat resources and applied it to a 1:24 000 scale map area in New Hampshire. Classifying and mapping wetlands involves integrating the spatial distribution of wetlands types with depth variations in associated peat quality and character. A hierarchically structured classification that integrates the spatial distribution of variations in (1) vegetation, (2) soil type, (3) hydrology, (4) geologic aspects, and (5) peat characteristics has been developed and can be used to build digital cartographic files for resource and land use analysis. The first three parameters are the bases used by the National Wetlands Inventory to classify wetlands and deepwater habitats of the United States. The fourth parameter, geological aspects, includes slope, relief, depth of wetland (from surface to underlying rock or substrate), wetland stratigraphy, and the type and structure of solid and unconsolidated rock surrounding and underlying the wetland. The fifth parameter, peat characteristics, includes the subsurface variation in ash, acidity, moisture, heating value (Btu), sulfur content, and other chemical properties as shown in specimens obtained from core holes. These parameters can be shown as a series of map data overlays with tables that can be integrated for resource or land use analysis.","largerWorkTitle":"ASTM Special Technical Publication","conferenceTitle":"International Symposium on Mapping and Geographic Information Systems","conferenceDate":"21 June 1990 through 22 June 1990","conferenceLocation":"San Francisco, CA, USA","language":"English","publisher":"Publ by ASTM","publisherLocation":"Philadelphia, PA, United States","issn":"10403094","usgsCitation":"Cameron, C., and Emery, D.A., 1992, Classifying and mapping wetlands and peat resources using digital cartography, in ASTM Special Technical Publication, no. 1126, San Francisco, CA, USA, 21 June 1990 through 22 June 1990, p. 195-206.","startPage":"195","endPage":"206","numberOfPages":"12","costCenters":[],"links":[{"id":224512,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"1126","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f631e4b0c8380cd4c5ec","contributors":{"authors":[{"text":"Cameron, Cornelia C.","contributorId":103002,"corporation":false,"usgs":true,"family":"Cameron","given":"Cornelia C.","affiliations":[],"preferred":false,"id":374654,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Emery, David A.","contributorId":107437,"corporation":false,"usgs":true,"family":"Emery","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":374655,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016844,"text":"70016844 - 1992 - Influence of soil organic matter composition on the partition of organic compounds","interactions":[],"lastModifiedDate":"2019-03-11T11:33:15","indexId":"70016844","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"Influence of soil organic matter composition on the partition of organic compounds","docAbstract":"No abstract available.
","language":"English","publisher":"ACS","doi":"10.1021/es00026a014","issn":"0013936X","usgsCitation":"Rutherford, D., Chiou, C.T., and Klle, D., 1992, Influence of soil organic matter composition on the partition of organic compounds: Environmental Science & Technology, v. 26, no. 2, p. 336-340, https://doi.org/10.1021/es00026a014.","productDescription":"5 p.","startPage":"336","endPage":"340","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":225134,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"2","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a3b7de4b0c8380cd62596","contributors":{"authors":[{"text":"Rutherford, D.W.","contributorId":21244,"corporation":false,"usgs":true,"family":"Rutherford","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":374642,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chiou, C. T.","contributorId":97080,"corporation":false,"usgs":true,"family":"Chiou","given":"C.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":374644,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Klle, D.E.","contributorId":68470,"corporation":false,"usgs":true,"family":"Klle","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":374643,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016843,"text":"70016843 - 1992 - Mixed-mode isolation of triazine metabolites from soil and aquifer sediments using automated solid-phase extraction","interactions":[],"lastModifiedDate":"2019-03-15T06:00:45","indexId":"70016843","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Mixed-mode isolation of triazine metabolites from soil and aquifer sediments using automated solid-phase extraction","docAbstract":"No abstract available.
","language":"English","publisher":"ACS","doi":"10.1021/ac00041a038","issn":"00032700","usgsCitation":"Mills, M.S., and Thurman, E., 1992, Mixed-mode isolation of triazine metabolites from soil and aquifer sediments using automated solid-phase extraction: Analytical Chemistry, v. 64, no. 17, p. 1985-1990, https://doi.org/10.1021/ac00041a038.","productDescription":"6 p.","startPage":"1985","endPage":"1990","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":225133,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"64","issue":"17","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a5b81e4b0c8380cd6f5d4","contributors":{"authors":[{"text":"Mills, M. S.","contributorId":96279,"corporation":false,"usgs":true,"family":"Mills","given":"M.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":374640,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thurman, E.M.","contributorId":102864,"corporation":false,"usgs":true,"family":"Thurman","given":"E.M.","affiliations":[],"preferred":false,"id":374641,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016841,"text":"70016841 - 1992 - U-Pb dating of uranium deposits in collapse breccia pipes of the Grand Canyon region","interactions":[],"lastModifiedDate":"2024-01-04T17:03:59.727023","indexId":"70016841","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"U-Pb dating of uranium deposits in collapse breccia pipes of the Grand Canyon region","docAbstract":"Two major periods of uranium mineralization are indicated by U-Pb isotope dating of uranium ores from collapse breeeia pipes in the Grand Canyon region, northern Arizona. The Hack 2 and 3, Kanab North, and EZ 1 and 2 orebodies apparently formed in the interval of 200 + or - 20 Ma, similar to ages inferred for strata-bound, Late Triassic-hosted uranium deposits in southern Utah and northern Arizona. Samples from the Grand Canyon and Pine Nut pipes, however, indicate a distinctly older age of about 260 Ma. The Pigeon, Orphan, and Arizona-1 deposits were apparently mineralized before 220, 186, and 169 Ma, respectively, but no useful upper age limits can be inferred. There is no evidence in the U-Pb isotope data for uranium mineralization related to Laramide tectonism, mid-Tertiary volcanism, or late Tertiary uplift. The clustering in ages for a variety of uranium deposits at about (or slightly younger than) the age of the lower part of the Chinle Formation (Late Triassic) suggests that uranium in these deposits may have been derived by leaching from volcanic ash in the Chinle and mobilized by ground-water movement resulting from changing hydrologic gradients caused by regional uplift to the southwest. Pb isotope ratios of galenas in mineralized pipes are more radiogenic than those of sulfides from either uranium-poor pipes or occurrences away from pipes. This isotopic contrast suggests that fluids which passed through the pipes had interacted with the Proterozoic basement, possibly through the vertical fractures which influenced the location and evolution of the pipes themselves. Regardless of the source of the common Pb in the uranium-bearing pipes, the generally distinct Pb isotope composition of their galenas (compared to those of barren pipes and nonpipe sulfides in the region) may provide a useful exploration guide.
","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.87.7.1747","issn":"03610128","usgsCitation":"Ludwig, K., and Simmons, K.R., 1992, U-Pb dating of uranium deposits in collapse breccia pipes of the Grand Canyon region: Economic Geology, v. 87, no. 7, p. 1747-1765, https://doi.org/10.2113/gsecongeo.87.7.1747.","productDescription":"19 p.","startPage":"1747","endPage":"1765","numberOfPages":"19","costCenters":[],"links":[{"id":225084,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"87","issue":"7","noUsgsAuthors":false,"publicationDate":"1992-11-01","publicationStatus":"PW","scienceBaseUri":"505bb9c7e4b08c986b327ddb","contributors":{"authors":[{"text":"Ludwig, K.R.","contributorId":97112,"corporation":false,"usgs":true,"family":"Ludwig","given":"K.R.","email":"","affiliations":[{"id":218,"text":"Denver Federal Center","active":false,"usgs":true}],"preferred":false,"id":374638,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Simmons, K. R.","contributorId":68771,"corporation":false,"usgs":true,"family":"Simmons","given":"K.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":374637,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016835,"text":"70016835 - 1992 - Riparian vegetation recovery patterns following stream channelization: A geomorphic perspective","interactions":[],"lastModifiedDate":"2023-12-18T14:32:33.327016","indexId":"70016835","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Riparian vegetation recovery patterns following stream channelization: A geomorphic perspective","docAbstract":"Hundreds of kilometres of West Tennessee streams have been channelized since the turn of the century. After a stream is straightened, dredged, or cleared, basinwide ecologic, hydrologic, and geomorphic processes bring about an integrated, characteristic recovery sequence. The rapid pace of channel responses to channelization provides an opportunity to document and interpret vegetation recovery patterns relative to otherwise long—term, concomitant evolution of river geomorphology. Nearly 150 sites along 15 streams were studied in the Obion, Forked Deer, Hatchie, and Wolf River basins. Channels of these streams, except that of the Hatchie River main stem, have undergone major modifications along all or parts of their courses. This paper presents the eco—geomorphic analyses and interpretation of a large multidisciplinary study, with special reference to their interrelated hydrogeomorphic aspects of channel recovery. Quantitative plant ecological analyses were conducted to infer relative bank stability, to identify indicator recovery species, and to determine patterns of vegetation development through the course of accelerated channel evolution. Binary—discriminant and ordination analyses show that distinctive riparian—species patterns reflect a six—stage model of channel evolution and can be used to infer channel stability and hydrogeomorphic conditions. Woody vegetation initially establishes on low— and mid—bank surfaces at the same location and time that bank accretion begins, and corresponds to the site of initial geomorphic restabilization. The linkage of channel bed aggradation, woody vegetation establishment, and bank accretion all lead to recovery of the channel. Pioneer species are hardy and fast growing, and can tolerate moderate amounts of slope instability and sediment deposition; these species include river birch (Betula nigra), black willow (Salix nigra), boxelder (Acer negundo), and silver maple (Acer saccharinum). High stem densities and root—mass development appear to enhance bank stability. Tree—ring analyses suggest that on average 65 yr may be required for recovery after channelization.
","language":"English","publisher":"Ecological Society of America","doi":"10.2307/1940670","usgsCitation":"Hupp, C.R., 1992, Riparian vegetation recovery patterns following stream channelization: A geomorphic perspective: Ecology, v. 73, no. 4, p. 1209-1226, https://doi.org/10.2307/1940670.","productDescription":"18 p.","startPage":"1209","endPage":"1226","numberOfPages":"18","costCenters":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"links":[{"id":225034,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"73","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aad80e4b0c8380cd86ef6","contributors":{"authors":[{"text":"Hupp, Cliff R. 0000-0003-1853-9197 crhupp@usgs.gov","orcid":"https://orcid.org/0000-0003-1853-9197","contributorId":2344,"corporation":false,"usgs":true,"family":"Hupp","given":"Cliff","email":"crhupp@usgs.gov","middleInitial":"R.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":374620,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016834,"text":"70016834 - 1992 - Enzymatic uranium precipitation","interactions":[],"lastModifiedDate":"2019-03-28T06:15:17","indexId":"70016834","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"Enzymatic uranium precipitation","docAbstract":"No abstract available.
","language":"English","publisher":"ACS","doi":"10.1021/es00025a026","issn":"0013936X","usgsCitation":"Gorby, Y., and Lovley, D.R., 1992, Enzymatic uranium precipitation: Environmental Science & Technology, v. 26, no. 1, p. 205-207, https://doi.org/10.1021/es00025a026.","productDescription":"3 p.","startPage":"205","endPage":"207","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":225033,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"1","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a09f0e4b0c8380cd52116","contributors":{"authors":[{"text":"Gorby, Y.A.","contributorId":64815,"corporation":false,"usgs":true,"family":"Gorby","given":"Y.A.","affiliations":[],"preferred":false,"id":374618,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lovley, Derek R.","contributorId":107852,"corporation":false,"usgs":true,"family":"Lovley","given":"Derek","middleInitial":"R.","affiliations":[],"preferred":false,"id":374619,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70186228,"text":"70186228 - 1992 - The determination and fate of unstable constituents of contaminated groundwater","interactions":[],"lastModifiedDate":"2018-10-01T08:17:15","indexId":"70186228","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"The determination and fate of unstable constituents of contaminated groundwater","docAbstract":"No abstract available
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Groundwater contamination and analysis at hazardous waste sites","language":"English","publisher":"Marcel Dekker","publisherLocation":"New York","usgsCitation":"Baedecker, M., and Cozzarelli, M., 1992, The determination and fate of unstable constituents of contaminated groundwater, chap. of Groundwater contamination and analysis at hazardous waste sites, p. 425-461.","productDescription":"37 p.","startPage":"425","endPage":"461","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338994,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58e35f93e4b09da67997ed3e","contributors":{"editors":[{"text":"Lesage, S.","contributorId":208306,"corporation":false,"usgs":false,"family":"Lesage","given":"S.","email":"","affiliations":[],"preferred":false,"id":746723,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Jackson, R.","contributorId":11974,"corporation":false,"usgs":true,"family":"Jackson","given":"R.","affiliations":[],"preferred":false,"id":746724,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Baedecker, M.J.","contributorId":42702,"corporation":false,"usgs":true,"family":"Baedecker","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":687938,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cozzarelli, M.","contributorId":190251,"corporation":false,"usgs":false,"family":"Cozzarelli","given":"M.","email":"","affiliations":[],"preferred":false,"id":687939,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016827,"text":"70016827 - 1992 - Laboratory investigations on the role of sediment surface and ground water chemistry in transport of bacteria through a contaminated Sandy Aquifer","interactions":[],"lastModifiedDate":"2019-03-15T05:39:31","indexId":"70016827","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"Laboratory investigations on the role of sediment surface and ground water chemistry in transport of bacteria through a contaminated Sandy Aquifer","docAbstract":"No abstract available.
","language":"English","publisher":"ACS","doi":"10.1021/es00031a020","issn":"0013936X","usgsCitation":"Scholl, M.A., and Harvey, R., 1992, Laboratory investigations on the role of sediment surface and ground water chemistry in transport of bacteria through a contaminated Sandy Aquifer: Environmental Science & Technology, v. 26, no. 7, p. 1410-1417, https://doi.org/10.1021/es00031a020.","productDescription":"8 p.","startPage":"1410","endPage":"1417","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224947,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"7","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a410de4b0c8380cd65275","contributors":{"authors":[{"text":"Scholl, M. A.","contributorId":86365,"corporation":false,"usgs":true,"family":"Scholl","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":374604,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, R.W. 0000-0002-2791-8503","orcid":"https://orcid.org/0000-0002-2791-8503","contributorId":11757,"corporation":false,"usgs":true,"family":"Harvey","given":"R.W.","affiliations":[],"preferred":false,"id":374603,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016759,"text":"70016759 - 1992 - Effect of water saturation in soil organic matter on the partition of organic compounds","interactions":[],"lastModifiedDate":"2019-03-11T11:31:55","indexId":"70016759","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"Effect of water saturation in soil organic matter on the partition of organic compounds","docAbstract":"No abstract available.
","language":"English","publisher":"ACS","doi":"10.1021/es00029a015","issn":"0013936X","usgsCitation":"Rutherford, D., and Chlou, G., 1992, Effect of water saturation in soil organic matter on the partition of organic compounds: Environmental Science & Technology, v. 26, no. 5, p. 965-970, https://doi.org/10.1021/es00029a015.","productDescription":"6 p.","startPage":"965","endPage":"970","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224801,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"5","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a062de4b0c8380cd5112f","contributors":{"authors":[{"text":"Rutherford, D.W.","contributorId":21244,"corporation":false,"usgs":true,"family":"Rutherford","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":374422,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chlou, G.T.","contributorId":98475,"corporation":false,"usgs":true,"family":"Chlou","given":"G.T.","email":"","affiliations":[],"preferred":false,"id":374423,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016738,"text":"70016738 - 1992 - A systematic approach to modelling the dynamic linkage of climate, physical catchment descriptors and hydrologic response components","interactions":[],"lastModifiedDate":"2019-03-07T07:00:51","indexId":"70016738","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2704,"text":"Mathematics and Computers in Simulation","active":true,"publicationSubtype":{"id":10}},"title":"A systematic approach to modelling the dynamic linkage of climate, physical catchment descriptors and hydrologic response components","docAbstract":"No abstract available.
","language":"English","publisher":"Elsevier","doi":"10.1016/0378-4754(92)90122-W","issn":"03784754","usgsCitation":"Jakeman, A., Hornberger, G., Littlewood, I., Whitehead, P., Harvey, J., and Bencala, K., 1992, A systematic approach to modelling the dynamic linkage of climate, physical catchment descriptors and hydrologic response components: Mathematics and Computers in Simulation, v. 33, no. 5-6, p. 359-366, https://doi.org/10.1016/0378-4754(92)90122-W.","productDescription":"8 p.","startPage":"359","endPage":"366","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224460,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"5-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e5e9e4b0c8380cd4701c","contributors":{"authors":[{"text":"Jakeman, A.J.","contributorId":12639,"corporation":false,"usgs":true,"family":"Jakeman","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":374361,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hornberger, G.M.","contributorId":68463,"corporation":false,"usgs":true,"family":"Hornberger","given":"G.M.","email":"","affiliations":[],"preferred":false,"id":374363,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Littlewood, I.G.","contributorId":82585,"corporation":false,"usgs":true,"family":"Littlewood","given":"I.G.","email":"","affiliations":[],"preferred":false,"id":374364,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Whitehead, P.G.","contributorId":85838,"corporation":false,"usgs":true,"family":"Whitehead","given":"P.G.","email":"","affiliations":[],"preferred":false,"id":374365,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Harvey, J. W. 0000-0002-2654-9873","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":39725,"corporation":false,"usgs":true,"family":"Harvey","given":"J. W.","affiliations":[],"preferred":false,"id":374362,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bencala, K.E.","contributorId":105312,"corporation":false,"usgs":true,"family":"Bencala","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":374366,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70016910,"text":"70016910 - 1992 - Improved apparatus for measuring hydraulic conductivity at low water content","interactions":[],"lastModifiedDate":"2019-03-14T06:17:16","indexId":"70016910","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3420,"text":"Soil Science Society of America Journal","active":true,"publicationSubtype":{"id":10}},"title":"Improved apparatus for measuring hydraulic conductivity at low water content","docAbstract":"A modification of the steady-state centrifuge method (SSCM) for unsaturated hydraulic conductivity (K) measurement improves the range and adjustability of this method. The modified apparatus allows mechanical adjustments to vary the measured K by a factor of 360. In addition, the use of different flow-regulating ceramic materials can give a total K range covering about six orders of magnitude. The increment of K adjustment is a factor of about 1.6. This makes it potentially useful for measuring targeted values of K or, through a trial and error procedure, of water content (θ). The range extension afforded by this modification has led to the lowest steady-state K measurement to date: 1.1 × 10−11 m/s at θ of 0.068 m3water/m3 for a sandy soil of the Delhi series (mixed, thermic Typic Xeropsamment).
","language":"English","publisher":"ACSESS","doi":"10.2136/sssaj1992.03615995005600060017x","issn":"03615995","usgsCitation":"Nimmo, J., Akstin, K., and Mello, K., 1992, Improved apparatus for measuring hydraulic conductivity at low water content: Soil Science Society of America Journal, v. 56, no. 6, p. 1758-1761, https://doi.org/10.2136/sssaj1992.03615995005600060017x.","productDescription":"4 p.","startPage":"1758","endPage":"1761","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224616,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"56","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3951e4b0c8380cd618a0","contributors":{"authors":[{"text":"Nimmo, J. R. 0000-0001-8191-1727","orcid":"https://orcid.org/0000-0001-8191-1727","contributorId":58304,"corporation":false,"usgs":true,"family":"Nimmo","given":"J. R.","affiliations":[],"preferred":false,"id":374837,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Akstin, K.C.","contributorId":105445,"corporation":false,"usgs":true,"family":"Akstin","given":"K.C.","affiliations":[],"preferred":false,"id":374838,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mello, K.A.","contributorId":54241,"corporation":false,"usgs":true,"family":"Mello","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":374836,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016671,"text":"70016671 - 1992 - The aqueous photolysis of α-pinene in solution with humic acid","interactions":[],"lastModifiedDate":"2019-03-15T10:45:13","indexId":"70016671","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2233,"text":"Journal of Contaminant Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"The aqueous photolysis of α-pinene in solution with humic acid","docAbstract":"Terpenes are produced abundantly by environmental processes but are found in very low concentrations in natural waters. Aqueous photolysis of solutions containing α-pinene, a representative terpene, in the presence of humic acid resulted in degradation of the pinene. Comparison of this reaction to photolysis of α-pinene in the presence of methylene blue leads to the conclusion that the reactive pathway for the abiotic degradation of α-pinene is due to reaction with singlet oxygen produced by irradiation of the humic material. The initial product of single oxygen and α-pinene is a hydroperoxide. Since humic materials are prevalent in most natural waters, this mechanism of photodecomposition for α-pinene probably also applies to other terpenes in surface waters and may be reasonably considered to contribute to their low environmental concentration.
","language":"English","publisher":"Elsevier","doi":"10.1016/0169-7722(92)90051-F","issn":"01697722","usgsCitation":"Goldberg, M.C., Cunningham, K.M., Aiken, G.R., and Weiner, E.R., 1992, The aqueous photolysis of α-pinene in solution with humic acid: Journal of Contaminant Hydrology, v. 9, no. 1-2, p. 79-89, https://doi.org/10.1016/0169-7722(92)90051-F.","productDescription":"11 p.","startPage":"79","endPage":"89","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224982,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba9cee4b08c986b322511","contributors":{"authors":[{"text":"Goldberg, Marvin C.","contributorId":26066,"corporation":false,"usgs":true,"family":"Goldberg","given":"Marvin","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":374184,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cunningham, Kirkwood M.","contributorId":85325,"corporation":false,"usgs":true,"family":"Cunningham","given":"Kirkwood","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":374185,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"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":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":374182,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Weiner, Eugene R.","contributorId":23280,"corporation":false,"usgs":true,"family":"Weiner","given":"Eugene","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":374183,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70017002,"text":"70017002 - 1992 - Patterns and rates of ground-water flow on Long Island, New York","interactions":[],"lastModifiedDate":"2024-03-19T22:28:32.89559","indexId":"70017002","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Patterns and rates of ground-water flow on Long Island, New York","docAbstract":"Increased ground-water contamination from human activities on Long Island has prompted studies to define the pattern and rate of ground-water movement. A two-dimensional, fine-mesh, finite-element model consisting of 11,969 nodes and 22,880 elements was constructed to represent ground-water flow along a north-south section through central Long Island. The model represents average hydrologic conditions within a corridor approximately 15 miles wide. The model solves discrete approximations of both the potential and stream functions. The resulting flownet depicts flow paths and defines the vertical distribution of flow within the section. Ground-water flow rates decrease with depth. Sixty-two percent of the water flows no deeper than the upper glacial (water-table) aquifer, 38 percent enters the underlying Magothy aquifer, and only 3.1 percent enters the Lloyd aquifer. The limiting streamlines for flow to the Magothy and Lloyd aquifers indicate that aquifer recharge areas are narrow east-west bands through the center of the island. The recharge area of the Magothy aquifer is only 5.4 miles wide; that of the Lloyd aquifer is less than 0.5 miles.
","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1992.tb01568.x","issn":"0017467X","usgsCitation":"Buxton, H.T., and Modica, E., 1992, Patterns and rates of ground-water flow on Long Island, New York: Groundwater, v. 30, no. 6, p. 857-866, https://doi.org/10.1111/j.1745-6584.1992.tb01568.x.","productDescription":"10 p.","startPage":"857","endPage":"866","numberOfPages":"10","costCenters":[],"links":[{"id":224522,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"6","noUsgsAuthors":false,"publicationDate":"2005-08-04","publicationStatus":"PW","scienceBaseUri":"505a75bae4b0c8380cd77ce7","contributors":{"authors":[{"text":"Buxton, Herbert T. hbuxton@usgs.gov","contributorId":1911,"corporation":false,"usgs":true,"family":"Buxton","given":"Herbert","email":"hbuxton@usgs.gov","middleInitial":"T.","affiliations":[{"id":5056,"text":"Office of the AD Energy and Minerals, and Environmental Health","active":true,"usgs":true}],"preferred":true,"id":375113,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Modica, Edward","contributorId":59431,"corporation":false,"usgs":true,"family":"Modica","given":"Edward","email":"","affiliations":[],"preferred":false,"id":375114,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016339,"text":"70016339 - 1992 - Consumption of freons CFC-11 and CFC-12 by anaerobic sediments and soils","interactions":[],"lastModifiedDate":"2019-03-11T11:28:42","indexId":"70016339","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"Consumption of freons CFC-11 and CFC-12 by anaerobic sediments and soils","docAbstract":"A variety of anaerobic sediments and soils consumed CFC-11 (CFCl3) and CFC-12 (CF2Cl2). An aerobic soil did not. Active microbial metabolism was required for CFC-12 uptake in all of the sediments examined. CFC-11 uptake was faster in the presence of microbial activity, but reduced components in the sediments also resulted in nonenzymatic CFC-11 consumption in most instances. CFC-12 uptake in a culture of Clostridium pasteurianum provided a model for the sediment uptake of CFC-11 and CFC-12 that required active microbial metabolism. Consumption of CFC-11 in the presence of reduced hematin demonstrated a potential mechanism for nonenzymatic CFC-11 consumption. These findings demonstrate that CFC-11 and CFC-12 are not biochemically inert under anaerobic conditions. This suggests that anaerobic degradation of CFC-11 and CFC-12 in anaerobic landfills might prevent some disposed CFC-11 and CFC-12 from entering the atmosphere. The results also suggest that CFC-11 and CFC-12 cannot be used as stable tracers in anaerobic environments. Furthermore, although the microbial sink for atmospheric CFC-11 and CFC-12 is much less than current anthropogenic release, this sink could have a significant long-term effect on the amount of CFC-11 and CFC-12 reaching the stratosphere.","language":"English","publisher":"ACS","doi":"10.1021/es00029a009","issn":"0013936X","usgsCitation":"Lovley, D.R., and Woodward, J., 1992, Consumption of freons CFC-11 and CFC-12 by anaerobic sediments and soils: Environmental Science & Technology, v. 26, no. 5, p. 925-929, https://doi.org/10.1021/es00029a009.","productDescription":"5 p.","startPage":"925","endPage":"929","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":223056,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"5","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5059fa27e4b0c8380cd4d969","contributors":{"authors":[{"text":"Lovley, Derek R.","contributorId":107852,"corporation":false,"usgs":true,"family":"Lovley","given":"Derek","middleInitial":"R.","affiliations":[],"preferred":false,"id":373215,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Woodward, J.C.","contributorId":62590,"corporation":false,"usgs":true,"family":"Woodward","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":373214,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016337,"text":"70016337 - 1992 - Radiocarbon dating of groundwater in a confined aquifer in southeast Arizona","interactions":[],"lastModifiedDate":"2025-07-16T15:46:31.702555","indexId":"70016337","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3225,"text":"Radiocarbon","active":true,"publicationSubtype":{"id":10}},"title":"Radiocarbon dating of groundwater in a confined aquifer in southeast Arizona","docAbstract":"Radiocarbon, δ13C and major-element data were used to construct a geochemical framework for interpretation of the hydrological flow system in the lower San Pedro basin, southeastern Arizona, USA. The 14C and major-element data show a regional confined aquifer that extends throughout most of the basin. Groundwater ages, after correcting for chemistry, are greater than 10 ka bp. The groundwater ages do not increase in a downvalley direction, the assumed direction of groundwater movement in most intermontane basins in the region, but along general flow paths normal to the mountains toward the center of the basin. Recharge to the confined aquifer originates from infiltration of precipitation and runoff near the alluvium-mountain contact along the Galiuro Mountains and is discharged by evapotranspiration along the center of the basin. The hydrogeological concept of the 14C model is supported by the water chemistry and by the mass transfer defined by the chemical model. Weathering of primary silicate minerals in the confined aquifer does not occur downvalley, but only along the direction of flow. Hydraulic conductivities calculated for the aquifer from 14C velocities are about an order of magnitude slower than those determined through hydrological methods. The lower hydraulic-conductivity values are attributed to a thick confining layer overlying the discharge area along the San Pedro River.
","language":"English","publisher":"Cambridge University Press","doi":"10.1017/S0033822200063955","issn":"00338222","usgsCitation":"Robertson, F.N., 1992, Radiocarbon dating of groundwater in a confined aquifer in southeast Arizona: Radiocarbon, v. 34, no. 3, p. 664-676, https://doi.org/10.1017/S0033822200063955.","productDescription":"13 p.","startPage":"664","endPage":"676","numberOfPages":"13","costCenters":[],"links":[{"id":492437,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1017/s0033822200063955","text":"Publisher Index Page"},{"id":223007,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"3","noUsgsAuthors":false,"publicationDate":"2016-07-18","publicationStatus":"PW","scienceBaseUri":"505a93e0e4b0c8380cd810a1","contributors":{"authors":[{"text":"Robertson, F. N.","contributorId":66737,"corporation":false,"usgs":true,"family":"Robertson","given":"F.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":373212,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016999,"text":"70016999 - 1992 - Humic substances and trace metals associated with Fe and Al oxides deposited in an acidic mountain stream","interactions":[],"lastModifiedDate":"2019-03-11T15:00:55","indexId":"70016999","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5331,"text":"Science of Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Humic substances and trace metals associated with Fe and Al oxides deposited in an acidic mountain stream","docAbstract":"Hydrous iron and aluminum oxides are deposited on the streambed in the confluence of the Snake River and Deer Creek, two streams in the Colorado Rocky Mountains. The Snake River is acidic and has high concentrations of dissolved Fe and Al. These metals precipitate at the confluence with the pristine, neutral pH, Deer Creek because of the greater pH (4.5-6.0) in the confluence. The composition of the deposited oxides changes consistently with distance downstream, with the most upstream oxide samples having the greatest Fe and organic carbon content. Fulvic acid accounts for most of the organic content of the oxides. Results indicate that streambed oxides in the confluence are not saturated with respect to their capacity to sorb dissolved humic substances from streamwater. The contents of several trace metals (Mn, Zn, Cu, Pb, Ni and Co) also decrease with distance downstream and are correlated with both the Fe and organic carbon contents. Strong metal-binding sites associated with the sorbed fulvic acid are more than sufficient to account for the trace metal content of the oxides. Complexation of trace metals by sorbed fulvic acid may explain the observed downstream decrease in trace metal content.","language":"English","publisher":"Elsevier","doi":"10.1016/0048-9697(92)90113-7","issn":"00489697","usgsCitation":"McKnight, D.M., Wershaw, R., Bencala, K., Zellweger, G.W., and Feder, G.L., 1992, Humic substances and trace metals associated with Fe and Al oxides deposited in an acidic mountain stream: Science of Total Environment, v. 117-118, p. 485-498, https://doi.org/10.1016/0048-9697(92)90113-7.","productDescription":"14 p.","startPage":"485","endPage":"498","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":205486,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0048-9697(92)90113-7"},{"id":224477,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"117-118","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3289e4b0c8380cd5e8b3","contributors":{"authors":[{"text":"McKnight, Diane M.","contributorId":59773,"corporation":false,"usgs":false,"family":"McKnight","given":"Diane","email":"","middleInitial":"M.","affiliations":[{"id":16833,"text":"INSTAAR, University of Colorado","active":true,"usgs":false}],"preferred":false,"id":375088,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wershaw, R.L.","contributorId":62223,"corporation":false,"usgs":true,"family":"Wershaw","given":"R.L.","affiliations":[],"preferred":false,"id":375089,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bencala, K.E.","contributorId":105312,"corporation":false,"usgs":true,"family":"Bencala","given":"K.E.","email":"","affiliations":[],"preferred":false,"id":375091,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zellweger, G. W.","contributorId":55445,"corporation":false,"usgs":true,"family":"Zellweger","given":"G.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":375087,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Feder, G. L.","contributorId":79508,"corporation":false,"usgs":true,"family":"Feder","given":"G.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":375090,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70016988,"text":"70016988 - 1992 - Evaluation of methyl fluoride and dimethyl ether as inhibitors of aerobic methane oxidation","interactions":[],"lastModifiedDate":"2023-01-20T17:17:11.467845","indexId":"70016988","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"Evaluation of methyl fluoride and dimethyl ether as inhibitors of aerobic methane oxidation","docAbstract":"Methyl fluoride (MF) and dimethyl ether (DME) were effective inhibitors of aerobic methanotrophy in a variety of soils. MF and DME blocked consumption of CH4 as well as the oxidation of 14CH4 to 14CO2, but neither MF nor DME affected the oxidation of [14C]methanol or [14C]formate to 14CO2. Cooxidation of ethane and propane by methane-oxidizing soils was also inhibited by MF. Nitrification (ammonia oxidation) in soils was inhibited by both MF and DME. Production of N2O via nitrification was inhibited by MF; however, MF did not affect N2O production associated with denitrification. Methanogenesis was partially inhibited by MF but not by DME. Methane oxidation was ∼100-fold more sensitive to MF than was methanogenesis, indicating that an optimum concentration could be employed to selectively block methanotrophy. MF inhibited methane oxidation by cell suspensions of Methylococcus capsulatus; however, DME was a much less effective inhibitor.
","language":"English","publisher":"American Society for Microbiology","doi":"10.1128/aem.58.9.2983-2992.1992","issn":"00992240","usgsCitation":"Oremland, R.S., and Culbertson, C.W., 1992, Evaluation of methyl fluoride and dimethyl ether as inhibitors of aerobic methane oxidation: Applied and Environmental Microbiology, v. 58, no. 9, p. 2983-2992, https://doi.org/10.1128/aem.58.9.2983-2992.1992.","productDescription":"10 p.","startPage":"2983","endPage":"2992","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":480362,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1128/aem.58.9.2983-2992.1992","text":"Publisher Index 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hydrocarbons","docAbstract":"A combined field and laboratory study was conducted to compare purge and trap gas chromatography/mass spectrometry (PT‐GC/MS) and purgeable organic chloride (POC1) analysis for measuring volatile chlorinated hydro‐carbons (VCH) in ground water. Distilled‐water spike and recovery experiments using 10 VCH indicate that at concentrations greater than 1 /ig/1 recovery is more than 80 percent for both methods with relative standard deviations of about 10 percent. Ground‐water samples were collected from a site on Cape Cod, Massachusetts, where a shallow unconfined aquifer has been contaminated by VCH, and were analyzed by both methods. Results for PT‐GC/MS and POC1 analysis of the ground‐water samples were not significantly different (alpha = 0.05, paired t‐test analysis) and indicated little bias between the two methods. Similar conclusions about concentrations and distributions of VCH in the ground‐water contamination plume were drawn from the two data sets. However, only PT‐GC/MS analysis identified the individual compounds present and determined their concentrations, which was necessary for toxicological and biogeochemical evaluation of the contaminated ground water. POC1 analysis was a complimentary method for use with PT‐GC/MS analysis for identifying samples with VCH concentrations below the detection limit or with high VCH concentrations that require dilution. Use of POC1 as a complimentary monitoring method for PT‐GC/MS can result in more efficient use of analytical resources.