{"pageNumber":"1948","pageRowStart":"48675","pageSize":"25","recordCount":68922,"records":[{"id":70014891,"text":"70014891 - 1987 - Presence and potential significance of aromatic-ketone groups in aquatic humic substances","interactions":[],"lastModifiedDate":"2025-03-14T21:23:48.478256","indexId":"70014891","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Presence and potential significance of aromatic-ketone groups in aquatic humic substances","docAbstract":"

Aquatic humic- and fulvic-acid standards of the International Humic Substances Society were characterized, with emphasis on carbonyl-group nature and content, by carbon-13 nuclear-magnetic-resonance spectroscopy, proton nuclear-magnetic-resonance spectroscopy, and infrared spectroscopy. After comparing spectral results of underivatized humic and fulvic acids with spectral results of chemically modified derivatives, that allow improved observation of the carbonyl group, the data clearly indicated that aromatic ketone groups comprised the majority of the carbonyl-group content. About one ketone group per monocyclic aromatic ring was determined for both humic and fulvic acids. Aromatic-ketone groups were hypothesized to form by photolytic rearrangements and oxidation of phenolic ester and hydrocarbon precursors; these groups have potential significance regarding haloform formation in water, reactivity resulting from active hydrogen of the methyl and methylene adjacent to the ketone groups, and formation of hemiketal and lactol structures. Aromatic-ketone groups also may be the point of attachment between aliphatic and aromatic moieties of aquatic humic-substance structure.

","language":"English","publisher":"Elsevier","doi":"10.1016/0146-6380(87)90038-6","usgsCitation":"Leenheer, J., Wilson, M.A., and Malcolm, R., 1987, Presence and potential significance of aromatic-ketone groups in aquatic humic substances: Organic Geochemistry, v. 11, no. 4, p. 273-280, https://doi.org/10.1016/0146-6380(87)90038-6.","productDescription":"8 p.","startPage":"273","endPage":"280","costCenters":[],"links":[{"id":226253,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Georgia","city":"Fargo","otherGeospatial":"Suwannee River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -82.55719563644614,\n 30.73718669262388\n ],\n [\n -82.70468259143186,\n 30.595406491784985\n ],\n [\n -82.62660258515855,\n 30.599762786732207\n ],\n [\n -82.52104350470628,\n 30.666323175534032\n ],\n [\n -82.33092442455035,\n 30.827183395185997\n ],\n [\n -82.35189154748764,\n 30.855175569793232\n ],\n [\n -82.55719563644614,\n 30.73718669262388\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"11","issue":"4","noUsgsAuthors":false,"plainLanguageSummary":"


","publicationStatus":"PW","scienceBaseUri":"505a8b3de4b0c8380cd7e1c7","contributors":{"authors":[{"text":"Leenheer, J.A.","contributorId":75123,"corporation":false,"usgs":true,"family":"Leenheer","given":"J.A.","affiliations":[],"preferred":false,"id":369541,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, M. A.","contributorId":107649,"corporation":false,"usgs":false,"family":"Wilson","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":369542,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Malcolm, Ronald L.","contributorId":46075,"corporation":false,"usgs":true,"family":"Malcolm","given":"Ronald L.","affiliations":[],"preferred":false,"id":369540,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014874,"text":"70014874 - 1987 - Examples of transient sounding from groundwater exploration in sedimentary aquifers","interactions":[],"lastModifiedDate":"2024-03-20T22:38:47.424001","indexId":"70014874","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Examples of transient sounding from groundwater exploration in sedimentary aquifers","docAbstract":"

Examples of the use of transient electromagnetic soundings for three ground-water exploration problems in sedimentary aquifers are given. The examples include: (1) estimating depths to water table and bedrock in an alluvium-filled basin, (2) mapping a confined fresh-water aquifer in bedrock sediments, and (3) locating a freshwater/salt-water interface in a glacial-outwash aquifer. The technique works quite well for these problems within the limitations imposed by the problem of equivalence. For thin conductive targets (S-equivalence) such as a salt-water lens, the ratio of the layer thickness to its resistivity can be determined, but not the individual layer parameters. The thickness of thin resistive zones (H-equivalence) can be resolved, but the resistivity of such layers is not well determined. The problem of H-equivalence is more severe than the S-equivalence. Equivalence imposes restrictions on the transient sounding method for some ground-water exploration problems. Model studies prior to field work can be used to assess the usefulness of the technique for a particular exploration objective.

","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1987.tb02209.x","usgsCitation":"Fitterman, D., 1987, Examples of transient sounding from groundwater exploration in sedimentary aquifers: Groundwater, v. 25, no. 6, p. 685-692, https://doi.org/10.1111/j.1745-6584.1987.tb02209.x.","productDescription":"8 p.","startPage":"685","endPage":"692","numberOfPages":"8","costCenters":[],"links":[{"id":225982,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"6","noUsgsAuthors":false,"publicationDate":"2006-03-21","publicationStatus":"PW","scienceBaseUri":"505a0da1e4b0c8380cd53100","contributors":{"authors":[{"text":"Fitterman, D.V. 0000-0001-5600-3401","orcid":"https://orcid.org/0000-0001-5600-3401","contributorId":70386,"corporation":false,"usgs":true,"family":"Fitterman","given":"D.V.","email":"","affiliations":[],"preferred":false,"id":369492,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70045316,"text":"70045316 - 1987 - Notes on sedimentation activities calendar year 1986","interactions":[],"lastModifiedDate":"2013-05-23T11:24:42","indexId":"70045316","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"title":"Notes on sedimentation activities calendar year 1986","docAbstract":"This report is a digest of information furnished by Federal agencies conducting sedimentation investigations. The decision to publish the report was made in 1946, from a proposal by the Chairman of the Federal Interagency River Basin Committee, Subcommittee on Ground Water. The subcommittee approved the proposal and agreed to issue this report as a means of effecting better coordination of the work of various Federal agencies in the field of\nsedimentation. From 1946 to 1947, the report was issued on a quarterly basis; from 1948 to 1953, reports were issued every 6 months; and from 1954 to the present, the report has been issued annually.","language":"English","publisher":"U.S. Geological Survey, Office of Water Data Coordination","publisherLocation":"Reston, VA","usgsCitation":"U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation, 1987, Notes on sedimentation activities calendar year 1986, xxiii, 221 p.","productDescription":"xxiii, 221 p.","numberOfPages":"258","additionalOnlineFiles":"N","temporalStart":"1986-01-01","temporalEnd":"1986-12-31","costCenters":[],"links":[{"id":270696,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/unnumbered/70045316/report-thumb.jpg"},{"id":272713,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/70045316/report.pdf"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51653870e4b077fa94dadfed","contributors":{"authors":[{"text":"U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation","contributorId":127893,"corporation":true,"usgs":false,"organization":"U.S. Interagency Advisory Committee on Water Data- Subcommittee on Sedimentation","id":535472,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014207,"text":"70014207 - 1987 - Sedimentation across the central California oxygen minimum zone: an alternative coastal upwelling sequence","interactions":[],"lastModifiedDate":"2024-05-20T23:21:01.592141","indexId":"70014207","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2450,"text":"Journal of Sedimentary Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Sedimentation across the central California oxygen minimum zone: an alternative coastal upwelling sequence","docAbstract":"

Distribution, abundance, and diversity of terrigenous, authigenous, and biogenous material provide evidence of the effect of bottom currents and oxygen minimum zone (OMZ) on continental slope sedimentation offshore central California. Box core samples and bottom photographs collected across the oxygen minimum zone of the coastal upwelling system were analyzed for lithologic and biologic trends. Three major OMZ facies are identified, along the upper and lower edges of the OMZ and one at its core. The upper boundary (525 m) of the central California OMZ (< 0.5 ml/liter O 2 ) is characterized by glauconitic gravelly sands relatively depleted in detrital silicates and enriched in carbonate and total organic carbon (TOC). These upper-boundary sands also have a maximum macrofauna density and a high abundance of foraminiferal fragments (> 80% of total forams) with Cassidulina the dominant benthic foraminifer. With increasing water depth, decreasing current speed, and dissolved oxygen content toward the core of the OMZ (750 m), grain size, glauconite, carbonate, TOC, and foraminiferal fragments all decrease as the abundance of mica and detrital silicates increase. The greatest number of genera of benthic foraminifera occurs at the core of the OMZ where their relative concentration is at a minimum and Bolivina is the dominant genus. No heavily calcified macrofauna were found at the core of the OMZ; however, near-surface sediments are highly bioturbated. As the lower boundary (1,025 m) of the OMZ is approached, grain size and abundance of detrital silicates continue to decrease as glauconite disappears. Concomitantly, the relative abundance of mica, carbonate, TOC, siliceous microfauna, benthic foraminifers, and foram fragments increase. The benthic foraminifer population consists largely (> 40%) of Globobulimina and Praeglobobulimina . The lower edge of the OMZ is highlighted by a distinct peak of fecal pellets (25% of sand-size material). Lithofacies and biofacies associated with the OMZ are controlled by an interplay of oceanic circulation, dissolved oxygen concentrations, and possibly by increased biological activity within the OMZ edge environment and slight changes in the slope gradient. Recognition of key lithofacies and biofacies trends may prove to be powerful paleoenvironmental/paleoceanographic indicators and may be useful in identifying ancient zones of upwelling analogous to the modern central California system where phosphorites, organic-rich shales, and/or chert are absent.

","language":"English","publisher":"SEPM","doi":"10.1306/212F8BE8-2B24-11D7-8648000102C1865D","issn":"00224472","usgsCitation":"Vercoutere, T., Mullins, H., McDougall, K., and Thompson, J., 1987, Sedimentation across the central California oxygen minimum zone: an alternative coastal upwelling sequence: Journal of Sedimentary Petrology, v. 57, no. 4, p. 709-722, https://doi.org/10.1306/212F8BE8-2B24-11D7-8648000102C1865D.","productDescription":"14 p.","startPage":"709","endPage":"722","numberOfPages":"14","costCenters":[],"links":[{"id":225820,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8a4de4b08c986b317124","contributors":{"authors":[{"text":"Vercoutere, T. L.","contributorId":102445,"corporation":false,"usgs":true,"family":"Vercoutere","given":"T. L.","affiliations":[],"preferred":false,"id":367859,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mullins, H.T.","contributorId":76881,"corporation":false,"usgs":true,"family":"Mullins","given":"H.T.","email":"","affiliations":[],"preferred":false,"id":367857,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McDougall, K.","contributorId":106260,"corporation":false,"usgs":true,"family":"McDougall","given":"K.","email":"","affiliations":[],"preferred":false,"id":367860,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thompson, J.B.","contributorId":82311,"corporation":false,"usgs":true,"family":"Thompson","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":367858,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70015194,"text":"70015194 - 1987 - Origin of the lethal gas burst from Lake Monoun, Cameroun","interactions":[],"lastModifiedDate":"2012-03-12T17:19:00","indexId":"70015194","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Origin of the lethal gas burst from Lake Monoun, Cameroun","docAbstract":"On 15 August, 1984, a lethal gas burst issued from a submerged 96-m-deep crater in Lake Monoun in Cameroun, western Africa, killing 37 people. The event was associated with a landslide from the eastern crater rim, which slumped into deep water. Waters below 50 m are anoxic, dominated by high Fe2+ (???600 mg/l) and HCO3- (??? 1900 mg/l), anoxic and supersaturated with siderite, which is a major component of the crater floor sediments. The unusually high Fe2+ levels are attributed to reduction of laterite-derived ferric iron gradually brought into the lake as loess and in river input. Sulfur compounds are below detection limits in both water and gas. Gases effervescing from depressurized deep waters are dominantly CO2 with minor CH4, having ??13C of -7.18 and -54.8 per mil, respectively. Bacterial decomposition of organic matter may account for the methane, but 14C of lake water indicates that only 10% of the carbon is modern, giving an apparent age of 18,000 years. The dominant source of carbon is therefore attributed to long-term emission of CO2 as volcanic exhalation from vents within the crater, which led to gradual build-up of HCO3- in the lake. The density stratification of the lake may have been upset by an earthquake and underwater landslide on 15 August, which triggered overturn of the lake and caused nucleation of CO2 in the deep water. The resultant ebullition of CO2 from deep lake waters led to a gas burst at the surface and locally generated a water wave up to 5 m high. People travelling through the gas cloud were asphyxiated, presumably from CO2, and suffered skin discoloration from unidentified components. ?? 1987.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Sigurdsson, H., Devine, J., Tchua, F., Presser, F., Pringle, M., and Evans, W.C., 1987, Origin of the lethal gas burst from Lake Monoun, Cameroun: Journal of Volcanology and Geothermal Research, v. 31, no. 1-2, p. 1-16.","startPage":"1","endPage":"16","numberOfPages":"16","costCenters":[],"links":[{"id":224409,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7104e4b0c8380cd763e1","contributors":{"authors":[{"text":"Sigurdsson, Haraldur","contributorId":35079,"corporation":false,"usgs":true,"family":"Sigurdsson","given":"Haraldur","email":"","affiliations":[],"preferred":false,"id":370293,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Devine, J.D.","contributorId":95486,"corporation":false,"usgs":true,"family":"Devine","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":370297,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tchua, F.M.","contributorId":48828,"corporation":false,"usgs":true,"family":"Tchua","given":"F.M.","email":"","affiliations":[],"preferred":false,"id":370295,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Presser, F.M.","contributorId":38847,"corporation":false,"usgs":true,"family":"Presser","given":"F.M.","email":"","affiliations":[],"preferred":false,"id":370294,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pringle, M.K.W.","contributorId":67220,"corporation":false,"usgs":true,"family":"Pringle","given":"M.K.W.","email":"","affiliations":[],"preferred":false,"id":370296,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Evans, William C.","contributorId":104903,"corporation":false,"usgs":true,"family":"Evans","given":"William","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":370298,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":27487,"text":"wri874047 - 1987 - Ground-water resources of the Laura area, Majuro Atoll, Marshall Islands","interactions":[],"lastModifiedDate":"2023-04-11T21:13:18.590426","indexId":"wri874047","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"87-4047","title":"Ground-water resources of the Laura area, Majuro Atoll, Marshall Islands","docAbstract":"

The water system that supplies the heavily populated Dalap-Uliga-Darrit (DUD) area of Majuro atoll, Marshall Island, relies almost entirely upon airstrip catchment of rain water. Droughts cause severe water supply problems and water rationing is required, even during periods of normal rainfall. The Laura area contains a substantial lens of fresh groundwater that could be developed for export to the DUD area 30 mi to the east. Study of the groundwater resource at Laura involved a survey of existing wells, installation of monitoring wells and test holes, compilation of continuous records of rainfall and water level fluctuations, and collection of water quality data. Test hole data permitted the definition of three geohydrologic units which correlate well with similar units in Bikini and Enewetak atolls. The units consist of two layers of unconsolidated reef and lagoon sediments resting on a dense, highly permeable limestone. The potable water zone, or freshwater nucleus, of the lens is contained mostly within the unconsolidated layers, which are much less permeable than the basal limestone. Recharge to the Laura freshwater lens is estimated to be 1.8 mil gal/day, based on an average annual rainfall of 140 in. Sustainable yield is estimated to be about 400,000 gal/day. Shallow skimming wells or infiltration galleries similar to those used on Kwajalein atoll would be appropriate to develop the freshwater lens. The impact of development on the lens can be determined by monitoring the salinity in developed water and in a network of monitor wells. 

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri874047","usgsCitation":"Hamlin, S.N., and Anthony, S.S., 1987, Ground-water resources of the Laura area, Majuro Atoll, Marshall Islands: U.S. Geological Survey Water-Resources Investigations Report 87-4047, vi, 69 p., https://doi.org/10.3133/wri874047.","productDescription":"vi, 69 p.","costCenters":[],"links":[{"id":415606,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_49216.htm","linkFileType":{"id":5,"text":"html"}},{"id":56338,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1987/4047/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":124185,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1987/4047/report-thumb.jpg"}],"country":"Republic of the Marshall Islands","otherGeospatial":"Laura area, Majuro Atoll","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 171.045,\n 7.1667\n ],\n [\n 171.023,\n 7.1667\n ],\n [\n 171.023,\n 7.133\n ],\n [\n 171.045,\n 7.133\n ],\n [\n 171.045,\n 7.1667\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a96e4b07f02db65a80d","contributors":{"authors":[{"text":"Hamlin, S. N.","contributorId":46560,"corporation":false,"usgs":true,"family":"Hamlin","given":"S.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":198201,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anthony, S. S.","contributorId":89173,"corporation":false,"usgs":true,"family":"Anthony","given":"S.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":198202,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014745,"text":"70014745 - 1987 - Sulfur and lead isotope studies of stratiform Zn-Pb-Ag deposits, Anvil Range, Yukon: Basinal brine exhalation and anoxic bottom-water mixing (Canada)","interactions":[],"lastModifiedDate":"2024-01-05T18:00:39.451468","indexId":"70014745","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"Sulfur and lead isotope studies of stratiform Zn-Pb-Ag deposits, Anvil Range, Yukon: Basinal brine exhalation and anoxic bottom-water mixing (Canada)","docAbstract":"

Five stratiform Zn-Pb-Ag deposits are known in Early Cambrian metapelitic rocks along a curvilinear trend in the Anvil Range, central Yukon. The Anvil Range deposits occur along the southwestern boundary of the Selwyn basin in the stratigraphic transition zone between metapelites of the Mt. Mye unit and calcareous phyllites of the overlying Vangorda unit. The massive sulfides are associated closely with anomalously thick graphitic phyllites, apparently related to a second-order basin. A typical Anvil cycle of mineralization begins with a ribbon-banded graphitic-quartzitic-pyritic unit. This grades upward into sulfide-bearing quartzite, quartzitic massive sulfide, massive sulfide, and finally a baritic massive sulfide horizon. Sericitic alteration envelopes irregularly encompass each deposit and locally are developed best in footwall rocks. Detailed sulfur isotope studies have been carried out on the DY and Grum deposits and on one representative drill hole from the Faro deposit. The delta 34 S values of sulfide minerals generally range from 10 to 22 per mil and are similar in all three deposits. The delta 34 S values of pyrite in unmineralized samples from the district exhibit a wider range, from 6 to 34 per mil, and show distinct upward stratigraphic increase due to a stagnation cycle in the basin. The delta 34 S values of barite samples are strongly dependent on bottom-water conditions and mode of mixing during brine exhalation. They range from 22 to 26 per mil in the Faro deposit to 36 to 42 per mil in the DY deposit. These variations are due to mixing of isotopically light sulfate (18-20ppm) in Ba-bearing ore fluid and isotopically heavy residual sulfate (30-60ppm) in anoxic seawater. Thirty-eight samples of galena from the DY, Grum, Faro, SB, and Swim deposits have been analyzed for lead isotope ratios. In general, the lead isotope ratio data indicate an upper crustal lead source, with the Proterozoic Grit unit which is inferred to underlie the district being the most likely source rock. A small component of mantle leads from mafic igneous rocks or due to source rock inhomogeneity is also indicated. Graphitic host lithologies, lack of stratiform iron oxides, delta 34 S values of sedimentary pyrite, and sulfide sulfur-organic carbon variations in unmineralized cores indicate formation of the Anvil deposits in strongly reduced bottom water related to a previously unknown Early Cambrian anoxic event.

","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.82.3.600","issn":"03610128","usgsCitation":"Shanks, W.C., Woodruff, L.G., Jilson, G., Jennings, D., Modene, J., and Ryan, B., 1987, Sulfur and lead isotope studies of stratiform Zn-Pb-Ag deposits, Anvil Range, Yukon: Basinal brine exhalation and anoxic bottom-water mixing (Canada): Economic Geology, v. 82, no. 3, p. 600-634, https://doi.org/10.2113/gsecongeo.82.3.600.","productDescription":"35 p.","startPage":"600","endPage":"634","numberOfPages":"35","costCenters":[],"links":[{"id":226244,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"82","issue":"3","noUsgsAuthors":false,"publicationDate":"1987-05-01","publicationStatus":"PW","scienceBaseUri":"505b9dcee4b08c986b31daba","contributors":{"authors":[{"text":"Shanks, Wayne C. III","contributorId":100527,"corporation":false,"usgs":true,"family":"Shanks","given":"Wayne","suffix":"III","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":369193,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Woodruff, L. G.","contributorId":46999,"corporation":false,"usgs":true,"family":"Woodruff","given":"L.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":369190,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jilson, G.A.","contributorId":78096,"corporation":false,"usgs":true,"family":"Jilson","given":"G.A.","email":"","affiliations":[],"preferred":false,"id":369191,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jennings, D.S.","contributorId":24503,"corporation":false,"usgs":true,"family":"Jennings","given":"D.S.","email":"","affiliations":[],"preferred":false,"id":369189,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Modene, J.S.","contributorId":97642,"corporation":false,"usgs":true,"family":"Modene","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":369192,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ryan, B.D.","contributorId":7017,"corporation":false,"usgs":true,"family":"Ryan","given":"B.D.","email":"","affiliations":[],"preferred":false,"id":369188,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70015295,"text":"70015295 - 1987 - Chemistry and mineralogy of pyrite-enriched sediments at a passive margin sulfide brine seep: Abyssal Gulf of Mexico","interactions":[],"lastModifiedDate":"2023-12-10T21:20:58.215769","indexId":"70015295","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Chemistry and mineralogy of pyrite-enriched sediments at a passive margin sulfide brine seep: Abyssal Gulf of Mexico","docAbstract":"

Pyrite is rapidly accumulating at the contact between the Cretaceous limestones of the Florida Platform and the hemipelagic sediments of the abyssal Gulf of Mexico. Sediments sampled with the submersible “Alvin” in 3266 m of water are associated with a dense community of organisms that depend on chemosynthetic primary production as a food source. Analysis of the chemistry, mineralogy, and textural composition of these sediments indicate that iron sulfide mineralization is occurring at the seafloor within an anoxic micro-habitat sustained by the advection of hydrogen sulfide-charged saline brines from the adjacent platform. The chemosynthetic bacteria that directly overlie the sediments oxidize hydrogen sulfide for energy and provide elemental sulfur that reacts with iron monosulfide to form some of the pyrite. The sediments are mixtures of pyrite (∼ 30 wt.%), Ba\"singleSr sulfates (∼ 4 wt.%), clays, and locally derived biogenic carbonates and are progressively being cemented by iron sulfides. Oxidation of hydrogen sulfide produces locally acidic conditions that corrode the adjacent limestones. Potential sources of S, H2S, Fe, Ba, and Sr are discussed.

","language":"English","publisher":"Elsevier","doi":"10.1016/0012-821X(87)90107-5","issn":"0012821X","usgsCitation":"Commeau, R., Paull, C.K., Commeau, J., and Poppe, L., 1987, Chemistry and mineralogy of pyrite-enriched sediments at a passive margin sulfide brine seep: Abyssal Gulf of Mexico: Earth and Planetary Science Letters, v. 82, no. 1-2, p. 62-74, https://doi.org/10.1016/0012-821X(87)90107-5.","productDescription":"13 p.","startPage":"62","endPage":"74","numberOfPages":"13","costCenters":[],"links":[{"id":224197,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -101.38391024938755,\n 32.22791508720029\n ],\n [\n -101.38391024938755,\n 16.611201793443044\n ],\n [\n -77.65344149938755,\n 16.611201793443044\n ],\n [\n -77.65344149938755,\n 32.22791508720029\n ],\n [\n -101.38391024938755,\n 32.22791508720029\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"82","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f5a5e4b0c8380cd4c335","contributors":{"authors":[{"text":"Commeau, R.F.","contributorId":62194,"corporation":false,"usgs":true,"family":"Commeau","given":"R.F.","email":"","affiliations":[],"preferred":false,"id":370569,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paull, C. K.","contributorId":86845,"corporation":false,"usgs":false,"family":"Paull","given":"C.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":370571,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Commeau, J.A.","contributorId":21549,"corporation":false,"usgs":true,"family":"Commeau","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":370568,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Poppe, L.J.","contributorId":72782,"corporation":false,"usgs":true,"family":"Poppe","given":"L.J.","affiliations":[],"preferred":false,"id":370570,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1000427,"text":"1000427 - 1987 - Thermal and dissolved oxygen characteristics of a South Carolina cooling reservoir","interactions":[],"lastModifiedDate":"2016-12-15T08:38:00","indexId":"1000427","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3718,"text":"Water Resources Bulletin","printIssn":"0043-1370","active":true,"publicationSubtype":{"id":10}},"title":"Thermal and dissolved oxygen characteristics of a South Carolina cooling reservoir","docAbstract":"

Temperature and dissolved oxygen concentrations were measured monthly from January 1971 to December 1982 at 1-m depth intervals at 13 stations in Keowee Reservoir in order to characterize spatial and temporal changes associated with operation of the Oconee Nuclear Station. The reservoir water column was i to 4°C warmer in operational than in non-operational years. The thermo-dine was at depths of 5 to 15 m before the operation of Oconee Nuclear Station, but was always below the upper level of the intake (20 m) after the station was in full operation; this suggests that pumping by the Oconee Nuclear Station had depleted all available cool hypolimnetic water to this depth. As a result summer water temperatures at depths greater than 10 m were usually 10°C higher after plant operation began than before. By fall the reservoir was nearly homothemious to a depth of 27 m, where a thermocine developed. Seasonal temperature profiles varied with distance from the plant; a cool water plume was evident in spring and a warm water plume was present in the summer, fall, and winter. A cold water plume also developed in the northern section of the reservoir due to the operation of Jocassee Pumped Storage Station. Increases in the mean water temperature of the reservoir during operational periods were correlated with the generating output of the power plant. The annual heat load to the reservoir increased by one-third after plant operations began. The alteration of the thermal stratification of the receiving water during the summer also caused the dissolved oxygen to mix to greater depths.

","language":"English","publisher":"Wiley","doi":"10.1111/j.1752-1688.1987.tb00805.x","usgsCitation":"Oliver, J.L., and Hudson, P.L., 1987, Thermal and dissolved oxygen characteristics of a South Carolina cooling reservoir: Water Resources Bulletin, v. 23, no. 2, p. 257-269, https://doi.org/10.1111/j.1752-1688.1987.tb00805.x.","productDescription":"13 p.","startPage":"257","endPage":"269","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":133101,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"South Carolina","otherGeospatial":"Keowee Reservoir","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -82.8973388671875,\n 35.03449433167976\n ],\n [\n -82.9522705078125,\n 35.07046911981966\n ],\n [\n -83.04840087890625,\n 35.03449433167976\n ],\n [\n -82.93304443359374,\n 34.89944783005726\n ],\n [\n -82.98797607421874,\n 34.8047829195724\n ],\n [\n -83.07037353515625,\n 34.76643521684169\n ],\n [\n -82.97973632812499,\n 34.66258150231496\n ],\n [\n -82.91656494140625,\n 34.72581233927868\n ],\n [\n -82.8643798828125,\n 34.79350603426752\n ],\n [\n -82.84790039062499,\n 34.84536693184101\n ],\n [\n -82.8204345703125,\n 34.89494244739732\n ],\n [\n -82.8973388671875,\n 35.03449433167976\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"23","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-06-08","publicationStatus":"PW","scienceBaseUri":"4f4e4a57e4b07f02db62e4f0","contributors":{"authors":[{"text":"Oliver, James L.","contributorId":97862,"corporation":false,"usgs":true,"family":"Oliver","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":308540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hudson, Patrick L. 0000-0002-7646-443X phudson@usgs.gov","orcid":"https://orcid.org/0000-0002-7646-443X","contributorId":5616,"corporation":false,"usgs":true,"family":"Hudson","given":"Patrick","email":"phudson@usgs.gov","middleInitial":"L.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":308539,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014178,"text":"70014178 - 1987 - Generation of liquid water on Mars through the melting of a dusty snowpack","interactions":[],"lastModifiedDate":"2024-02-15T23:38:45.714936","indexId":"70014178","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Generation of liquid water on Mars through the melting of a dusty snowpack","docAbstract":"

The possibility that snowmelt could have provided liquid water for valley network formation early in the history of Mars is investigated using an optical-thermal model developed for dusty snowpacks at temperate latitudes. The heating of the postulated snow is assumed to be driven primarily by the absorption of solar radiation during clear sky conditions. Radiative heating rates are predicted as a function of depth and shown to be sensitive to the dust concentration and the size of the ice grains while the thermal conductivity is controlled by temperature, atmospheric pressure, and bulk density. Rates of metamorphism indicate that fresh fine-grained snow on Mars would evolve into moderately coarse snow during a single summer season. Results from global climate models are used to constrain the mean-annual surface temperatures for snow and the atmospheric exchange terms in the surface energy balance. Mean-annual temperatures within Martian snowpacks fail to reach the melting point for all atmospheric pressures below 1000 mbar despite a predicted temperature enhancement beneath the surface of the snowpacks. When seasonal and diurnal variations in the incident solar flux are included in the model, melting occurs at midday during the summer for a wide range of snow types and atmospheric pressures if the dust levels in the snow exceed 100 ppmw (parts per million by weight). The optimum dust concentration appears to be about 1000 ppmw. With this dust load, melting can occur in the upper few centimeters of a dense coarse-grained snow at atmospheric pressures as low as 7 mbar. Snowpack thickness and the thermal conductivity of the underlying substrate determine whether the generated snow-melt can penetrate to the snowpack base, survive basal ice formation, and subsequently become available for runoff. Under favorable conditions, liquid water becomes available for runoff at atmospheric pressures as low as 30 to 100 mbar if the substrate is composed of regolith, as is expected in the ancient cratered terrain of Mars.




","language":"English","publisher":"Elsevier","doi":"10.1016/0019-1035(87)90123-0","issn":"00191035","usgsCitation":"Clow, G., 1987, Generation of liquid water on Mars through the melting of a dusty snowpack: Icarus, v. 72, no. 1, p. 95-127, https://doi.org/10.1016/0019-1035(87)90123-0.","productDescription":"33 p.","startPage":"95","endPage":"127","numberOfPages":"33","costCenters":[],"links":[{"id":225427,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"72","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1554e4b0c8380cd54d70","contributors":{"authors":[{"text":"Clow, G.D.","contributorId":46112,"corporation":false,"usgs":true,"family":"Clow","given":"G.D.","email":"","affiliations":[],"preferred":false,"id":367788,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70015215,"text":"70015215 - 1987 - The hydrothermal system of the Calabozos caldera, central Chilean Andes","interactions":[],"lastModifiedDate":"2012-03-12T17:18:55","indexId":"70015215","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"The hydrothermal system of the Calabozos caldera, central Chilean Andes","docAbstract":"Active thermal springs associated with the late Pleistocene Calabozos caldera complex occur in two groups: the Colorado group which issues along structures related to caldera collapse and resurgence, and the Puesto Calabozos group, a nearby cluster that is chemically distinct and probably unrelated to the Colorado springs. Most of the Colorado group can be related to a hypothetical parent water containing ???400 ppm Cl at ???250??C by dilution with ???50% of cold meteoric water. The thermal springs in the most deeply eroded part of the caldera were derived from the same parent water by boiling. The hydrothermal system has probably been active for at least as long as 300,000 years, based on geologic evidence and calculations of paleo-heat flow. There is no evidence for economic mineralization at shallow depth. The Calabozos hydrothermal system would be an attractive geothermal prospect were its location not so remote. ?? 1987.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Grunder, A., Thompson, J., and Hildreth, W., 1987, The hydrothermal system of the Calabozos caldera, central Chilean Andes: Journal of Volcanology and Geothermal Research, v. 32, no. 4, p. 287-298.","startPage":"287","endPage":"298","numberOfPages":"12","costCenters":[],"links":[{"id":223862,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bacd1e4b08c986b32376f","contributors":{"authors":[{"text":"Grunder, A.L.","contributorId":71314,"corporation":false,"usgs":true,"family":"Grunder","given":"A.L.","affiliations":[],"preferred":false,"id":370341,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thompson, J. M.","contributorId":77142,"corporation":false,"usgs":true,"family":"Thompson","given":"J. M.","affiliations":[],"preferred":false,"id":370342,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hildreth, W. 0000-0002-7925-4251","orcid":"https://orcid.org/0000-0002-7925-4251","contributorId":100487,"corporation":false,"usgs":true,"family":"Hildreth","given":"W.","affiliations":[],"preferred":false,"id":370343,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":28865,"text":"wri864179 - 1987 - Flood characteristics for the Nisqually River and susceptibility of Sunshine Point and Longmire facilities to flooding in Mount Rainier National Park, Washington","interactions":[],"lastModifiedDate":"2023-04-10T18:52:53.521985","indexId":"wri864179","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"86-4179","title":"Flood characteristics for the Nisqually River and susceptibility of Sunshine Point and Longmire facilities to flooding in Mount Rainier National Park, Washington","docAbstract":"

Inundation from 25-, 50-, 100-, and 500-year floods at Sunshine Point and Longmire facilities and the Longmire visitors ' center and ranger station generally is not a serious hazard as long as the existing dikes and banks of the Nisqually River and Tahoma Creek remain intact and flood capacities of the channels are maintained. However, average water velocities during floods are high (as much as 23 ft/sec) and the channel, banks, and some dikes are composed of unstable materials. Sunshine Point campground is particularly susceptible to flooding and damage from Tahoma Creek, and to a lesser extent from the Nisqually River, if large amounts of debris or rock material accumulate in the channels and change the flood elevation or courses of either stream. At Longmire flood inundation or damage from the Nisqually River is much less, but flooding is still possible. There, high ridges upstream protect the several park facilities from the river, but accumulations of debris or rock in the channel could cause flooding from overtopping of dikes or riverbanks. Glacial outburst floods are a matter of serious concern at both Sunshine Point campground and Longmire. Glacial outbursts can and have produced very large flood discharges and transported large quantities of debris and rock materials. Although none have been known to transport these materials from Tahoma Glacier as far as Sunshine Point campground, one in 1955 from Nisqually Glacier (estimated at 70,000 cu ft/sec near the glacier) did appreciably increase the magnitude of the water discharge at Longmire. For safety, campers and visitors need to be advised about the potential flood hazards at both facilities. 

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri864179","usgsCitation":"Nelson, L.M., 1987, Flood characteristics for the Nisqually River and susceptibility of Sunshine Point and Longmire facilities to flooding in Mount Rainier National Park, Washington: U.S. Geological Survey Water-Resources Investigations Report 86-4179, Report: iv, 18 p.; 20.74 x 12.38 inches and 16.40 x 12.63 inches, https://doi.org/10.3133/wri864179.","productDescription":"Report: iv, 18 p.; 20.74 x 12.38 inches and 16.40 x 12.63 inches","costCenters":[],"links":[{"id":124120,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1986/4179/report-thumb.jpg"},{"id":415522,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_36604.htm","linkFileType":{"id":5,"text":"html"}},{"id":57744,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1986/4179/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":57745,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1986/4179/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":57743,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1986/4179/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Washington","otherGeospatial":"Mount Rainier National Park, Nisqually river","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -121.922,\n 46.753\n ],\n [\n -121.922,\n 46.733\n ],\n [\n -121.808,\n 46.733\n ],\n [\n -121.808,\n 46.753\n ],\n [\n -121.922,\n 46.753\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49d5e4b07f02db5ddba9","contributors":{"authors":[{"text":"Nelson, L. M.","contributorId":39773,"corporation":false,"usgs":true,"family":"Nelson","given":"L.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":200526,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70175265,"text":"70175265 - 1987 - Some effects of climate variability on hydrology in western North America","interactions":[],"lastModifiedDate":"2016-08-03T13:57:20","indexId":"70175265","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Some effects of climate variability on hydrology in western North America","docAbstract":"

The strong north-south gradient in precipitation along the West Coast makes this region an interesting laboratory for studying the influence of climate on runoff variability in general and riverine chemistry in particular. Interannual fluctuations in large-scale atmospheric circulation and associated precipitation and runoff can produce major disruptions in the \"average\" climatologic picture. Such fluctuations can be inferred and simplified from the time-averaged atmospheric pressure field and large-scale patterns of stream flow anomalies (eg., high or low stream flow). Further, the effect of the climate gradient along western United States on the total dissolved solids concentrations in rivers is summarized as a highly idealized force-response model of total dissolved solids concentrations as a function of river flow. The response in wet years is more like the wetter climate response curves observed to the north and the response in dry years is more like the drier response curves observed to the south.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The influence of climate change and climatic variability on the hydrologic regime and water resources (Proceedings of the Vancouver Symposium, August 1987), IAHS Publication no. 168","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"IAHS","usgsCitation":"Peterson, D.H., Cayan, D., Dileo-Stevens, J.S., and Ross, T., 1987, Some effects of climate variability on hydrology in western North America, in The influence of climate change and climatic variability on the hydrologic regime and water resources (Proceedings of the Vancouver Symposium, August 1987), IAHS Publication no. 168, v. 168, p. 45-62.","productDescription":"18 p.","startPage":"45","endPage":"62","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":326055,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":326054,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://iahs.info/Publications-News/paper-search.do"}],"volume":"168","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57a315d1e4b006cb45558ba1","contributors":{"authors":[{"text":"Peterson, D. H.","contributorId":92229,"corporation":false,"usgs":true,"family":"Peterson","given":"D.","middleInitial":"H.","affiliations":[],"preferred":false,"id":644615,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cayan, D.R.","contributorId":25961,"corporation":false,"usgs":false,"family":"Cayan","given":"D.R.","email":"","affiliations":[{"id":16196,"text":"Scripps Institution of Oceanography, La Jolla, CA","active":true,"usgs":false}],"preferred":false,"id":644616,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dileo-Stevens, J. S.","contributorId":13650,"corporation":false,"usgs":true,"family":"Dileo-Stevens","given":"J.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":644617,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ross, T.G.","contributorId":34987,"corporation":false,"usgs":true,"family":"Ross","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":644618,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70175615,"text":"70175615 - 1987 - Water quality of Canyon Lake, central Texas","interactions":[],"lastModifiedDate":"2016-08-17T13:32:55","indexId":"70175615","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":5174,"text":"Texas Water Development Board Report","active":true,"publicationSubtype":{"id":2}},"seriesNumber":"302","title":"Water quality of Canyon Lake, central Texas","docAbstract":"

No abstract available.

","language":"English","publisher":"Texas Water Development Board","usgsCitation":"Roddy, W., and Waddell, K.M., 1987, Water quality of Canyon Lake, central Texas: Texas Water Development Board Report 302, 59 p.","productDescription":"59 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"links":[{"id":326699,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57b58b71e4b03bcb0104bcad","contributors":{"authors":[{"text":"Roddy, W.R.","contributorId":27453,"corporation":false,"usgs":true,"family":"Roddy","given":"W.R.","email":"","affiliations":[],"preferred":false,"id":645833,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Waddell, K. M.","contributorId":118067,"corporation":false,"usgs":true,"family":"Waddell","given":"K.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":645834,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70015167,"text":"70015167 - 1987 - Concentrations of arsenic, antimony, and boron in steam and steam condensate at The Geysers, California","interactions":[],"lastModifiedDate":"2012-03-12T17:18:53","indexId":"70015167","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Concentrations of arsenic, antimony, and boron in steam and steam condensate at The Geysers, California","docAbstract":"Studies at The Geysers Geothermal Field, California indicate that under some circumstances elements that are transported in the vapor phase can become enriched in the liquid phase. Waters from two condensate traps (steam traps) on steam lines at The Geysers are enriched with arsenic, antimony, and boron compared to the concentrations of these elements in coexisting steam. Concentrations of boron in condensate-trap waters were as high as 160 mg/L, arsenic as high as 35 mg/L, and antimony as high as 200 ??g/L. Enrichment of arsenic, antimony, and boron is at least partially controlled by the partitioning of these elements into the liquid phase, according to their vapor-liquid distribution coefficients, after they are transported in steam. Several of the elements that are most soluble in steam, including arsenic and antimony, are part of the trace-element suite that characterizes precious-metal epithermal ore deposits. ?? 1987.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Smith, C.L., Ficklin, W.H., and Thompson, J., 1987, Concentrations of arsenic, antimony, and boron in steam and steam condensate at The Geysers, California: Journal of Volcanology and Geothermal Research, v. 32, no. 4, p. 329-341.","startPage":"329","endPage":"341","numberOfPages":"13","costCenters":[],"links":[{"id":224022,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f98fe4b0c8380cd4d68a","contributors":{"authors":[{"text":"Smith, C. L.","contributorId":100842,"corporation":false,"usgs":true,"family":"Smith","given":"C.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":370236,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ficklin, W. H.","contributorId":89517,"corporation":false,"usgs":true,"family":"Ficklin","given":"W.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":370235,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thompson, J. M.","contributorId":77142,"corporation":false,"usgs":true,"family":"Thompson","given":"J. M.","affiliations":[],"preferred":false,"id":370234,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015217,"text":"70015217 - 1987 - The chemical, physical and structural properties of estuarine ice in Great Bay, New Hampshire","interactions":[],"lastModifiedDate":"2023-10-12T00:33:04.298157","indexId":"70015217","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"The chemical, physical and structural properties of estuarine ice in Great Bay, New Hampshire","docAbstract":"

The purpose of this study was to provide general information on the chemical, physical and structural properties of estuarine ice and show how it compares with sea ice found at higher latitudes in order to determine whether the ice in Great Bay can be used as an analog in the study of arctic sea ice.

Ice cores and water samples were collected during the 1983–1984 winter season at Adams Point in Great Bay, New Hampshire. Concentrations of chloride, nitrogen (as nitrate and nitrite), bromide, phosphate, sulfate and silicate were determined for samples chosen on the basis of identifiable stratigraphic layers (i.e. bubble size and shape, sediment layers, etc.).

Similarities between ice formation in Great Bay and those in the arctic regions include the nature of the freezing process and the ice types produced. In addition, the distribution and concentration of chemical constituents were found to be similar to those observed in arctic sea ice. Factors affecting the chemistry of the ice in Great Bay include rainfall during the freezing season, the presence of sediment layers in the ice cores, the nature of incorporation of brine into the crystal structure of the ice and the drainage of brine.

","largerWorkTitle":"Elsevier","language":"English","doi":"10.1016/0272-7714(87)90155-7","issn":"02727714","usgsCitation":"Meese, D., Gow, A.J., Mayewski, P., Ficklin, W., and Loder, T., 1987, The chemical, physical and structural properties of estuarine ice in Great Bay, New Hampshire: Estuarine, Coastal and Shelf Science, v. 24, no. 6, p. 833-840, https://doi.org/10.1016/0272-7714(87)90155-7.","productDescription":"8 p.","startPage":"833","endPage":"840","costCenters":[],"links":[{"id":223864,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Hampshire","otherGeospatial":"Adams Point, Great Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -70.87049245209931,\n 43.097134275933456\n ],\n [\n -70.87024449127672,\n 43.097254349501355\n ],\n [\n -70.8701620853713,\n 43.097474981170905\n ],\n [\n -70.87040930308838,\n 43.0977758412572\n ],\n [\n -70.87082133261794,\n 43.09795635659984\n ],\n [\n -70.87343085296828,\n 43.09715406211606\n ],\n [\n -70.87395275703868,\n 43.09637181487281\n ],\n [\n -70.87356819614534,\n 43.096111063571726\n ],\n [\n -70.87323857252203,\n 43.096211352665165\n ],\n [\n -70.87235957619289,\n 43.096211352665165\n ],\n [\n -70.87145311122916,\n 43.09607094788808\n ],\n [\n -70.87054664626461,\n 43.09579013736814\n ],\n [\n -70.86966764993633,\n 43.09526862870126\n ],\n [\n -70.86991486765338,\n 43.095047989082104\n ],\n [\n -70.87021776574683,\n 43.09486773648993\n ],\n [\n -70.86975079894727,\n 43.09414563550743\n ],\n [\n -70.87005295393517,\n 43.094225869370234\n ],\n [\n -70.87041004619391,\n 43.09418575245164\n ],\n [\n -70.87060232664014,\n 43.09394505038949\n ],\n [\n -70.87139891706302,\n 43.09366423012162\n ],\n [\n -70.87167360341637,\n 43.09366423012162\n ],\n [\n -70.87183841522803,\n 43.093022350387116\n ],\n [\n -70.87249766247467,\n 43.09254093617136\n ],\n [\n -70.87230538202759,\n 43.091718511465245\n ],\n [\n -70.87156372887468,\n 43.09131732467449\n ],\n [\n -70.86958598713561,\n 43.09075565875216\n ],\n [\n -70.86933876941768,\n 43.09059518182801\n ],\n [\n -70.8671412785961,\n 43.09009368873055\n ],\n [\n -70.86667431179653,\n 43.08981285080284\n ],\n [\n -70.8655206291149,\n 43.0897326111579\n ],\n [\n -70.86477897596285,\n 43.08989309034209\n ],\n [\n -70.86458669551578,\n 43.09027422671892\n ],\n [\n -70.86406479144536,\n 43.09075565875216\n ],\n [\n -70.86403732280998,\n 43.09097631383591\n ],\n [\n -70.86502619367992,\n 43.091096670819326\n ],\n [\n -70.86538328593865,\n 43.09151791839838\n ],\n [\n -70.86524594276244,\n 43.091718511465245\n ],\n [\n -70.86461416415119,\n 43.09197928147037\n ],\n [\n -70.86403732280998,\n 43.09197928147037\n ],\n [\n -70.8638725109983,\n 43.09217987302617\n ],\n [\n -70.86453175824495,\n 43.09238046392562\n ],\n [\n -70.86433947779784,\n 43.09336334983351\n ],\n [\n -70.86411972871619,\n 43.09400522599404\n ],\n [\n -70.8646965700566,\n 43.09436627837772\n ],\n [\n -70.86508113095076,\n 43.09446657032865\n ],\n [\n -70.86565797229116,\n 43.09402528451574\n ],\n [\n -70.86598759591448,\n 43.09414563550743\n ],\n [\n -70.86639962544406,\n 43.094386336781184\n ],\n [\n -70.86681165497278,\n 43.0948276199924\n ],\n [\n -70.8671687472315,\n 43.09524884190944\n ],\n [\n -70.86738849631315,\n 43.09546948080495\n ],\n [\n -70.8680202749244,\n 43.09567006092976\n ],\n [\n -70.86834989854772,\n 43.09639214393695\n ],\n [\n -70.86867952217104,\n 43.09639214393695\n ],\n [\n -70.86892673988895,\n 43.0967130669855\n ],\n [\n -70.86917395760601,\n 43.09693370060535\n ],\n [\n -70.86983320485268,\n 43.09703398835151\n ],\n [\n -70.87005295393517,\n 43.09719444840414\n ],\n [\n -70.87049245209931,\n 43.097134275933456\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"24","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baa2fe4b08c986b322753","contributors":{"authors":[{"text":"Meese, D.A.","contributorId":84095,"corporation":false,"usgs":true,"family":"Meese","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":370350,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gow, A. J.","contributorId":45070,"corporation":false,"usgs":false,"family":"Gow","given":"A.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":370348,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mayewski, P.A.","contributorId":14891,"corporation":false,"usgs":true,"family":"Mayewski","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":370347,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ficklin, W.","contributorId":11885,"corporation":false,"usgs":true,"family":"Ficklin","given":"W.","affiliations":[],"preferred":false,"id":370346,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Loder, T.C.","contributorId":62817,"corporation":false,"usgs":true,"family":"Loder","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":370349,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":44378,"text":"wri874212 - 1987 - Generalized potentiometric surface of the aquifers in the Cockfield Formation, southeastern Arkansas, spring 1980","interactions":[],"lastModifiedDate":"2023-04-10T19:50:36.225016","indexId":"wri874212","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"87-4212","title":"Generalized potentiometric surface of the aquifers in the Cockfield Formation, southeastern Arkansas, spring 1980","docAbstract":"

This map shows the generalized contours of the altitude of water levels in wells completed in the Cockfield Formation in southeastern Arkansas for 1980. Most water levels used in constructing the map were made in the spring of 1980. However, in parts of the State water levels from the spring of 1980 were unavailable. Where data indicated no long-term changes in nearby water levels, measurements from as early as 1952 and as late as 1983 were used. At a few locations the altitude of the water surface in a stream was used to define the potentiometric surface. Available water level data limited the interpretation of potentiometric surface primarily to the area of occurrence of the aquifers south of the Arkansas River. Water level data from Arkansas and adjacent states used in the construction of this map are from the groundwater file of the U.S. Geological Survey 's National Water Data Storage and Retrieval System. This map was prepared as part of the Gulf Coast Regional Aquifer-System Analysis study. 

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri874212","usgsCitation":"Ackerman, D.J., 1987, Generalized potentiometric surface of the aquifers in the Cockfield Formation, southeastern Arkansas, spring 1980: U.S. Geological Survey Water-Resources Investigations Report 87-4212, 1 Plate: 41.82 x 33.42 inches, https://doi.org/10.3133/wri874212.","productDescription":"1 Plate: 41.82 x 33.42 inches","costCenters":[],"links":[{"id":169315,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":81668,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1987/4212/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":415530,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_46868.htm","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Arkansas","otherGeospatial":"Cockfield Formation","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -93.333,\n 35\n ],\n [\n -93.333,\n 33\n ],\n [\n -91,\n 33\n ],\n [\n -91,\n 35\n ],\n [\n -93.333,\n 35\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b25e4b07f02db6aed92","contributors":{"authors":[{"text":"Ackerman, D. 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Instantaneous discharge per unit area was derived from relationships between flow and staff-gage readings at 10 drainage basins throughout the region. The average chemical composition of the waters was assessed from monthly samples collected from July 1982 through July 1984. The ratio of flow at the 50-percent exceedence level to the flow at the 95-percent exceedence level of flow duration was negatively correlated with mean values of alkalinity or acid-neutralizing capacity (ANC), sum of basic cations (SBC), and dissolved silica, for basins containing predominantly aluminosilicate minerals and little or no carbonate-bearing minerals. Low ratios are indicative of systems in which flow is predominately derived from surface- and ground-water storage, whereas high ratios are characteristic of watersheds with variable flow that is largely derived from surface runoff. In an evaluation of two representative surface-water sites, concentrations of ANC, SBC, and dissolved silica, derived primarily from soil mineral weathering reactions. decreased with increasing flow. Furthermore, the ANC was highest at low flow when the percentage of streamflow derived from ground water was maximum. As flow increased, the ANC decreased because the contribution of dilute surface runoff and lateral flow through the shallow acidic soil horizons to total flow increased. Basins having relatively high ground-water contributions to total flow, in general, have large deposits of thick till or stratified drift. A major factor controlling the sensitivity of these streams and lakes to acidification is the relative contribution of ground water to total discharge. ?? 1987 Martinus Nijhoff/Dr W. Junk Publishers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biogeochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Martinus Nijhoff/Dr. W. Junk Publishers","doi":"10.1007/BF02185191","issn":"01682563","usgsCitation":"Peters, N., and Driscoll, C.T., 1987, Hydrogeologic controls of surface-water chemistry in the Adirondack region of New York State: Biogeochemistry, v. 3, no. 1-3, p. 163-180, https://doi.org/10.1007/BF02185191.","startPage":"163","endPage":"180","numberOfPages":"18","costCenters":[],"links":[{"id":205681,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF02185191"},{"id":226097,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a33a2e4b0c8380cd5f138","contributors":{"authors":[{"text":"Peters, N.E.","contributorId":33332,"corporation":false,"usgs":true,"family":"Peters","given":"N.E.","email":"","affiliations":[],"preferred":false,"id":368816,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Driscoll, C. T.","contributorId":47530,"corporation":false,"usgs":false,"family":"Driscoll","given":"C.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":368817,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014273,"text":"70014273 - 1987 - Methylation patterns of aquatic humic substances determined by13C NMR spectroscopy","interactions":[],"lastModifiedDate":"2025-03-14T21:43:08.642224","indexId":"70014273","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Methylation patterns of aquatic humic substances determined by13C NMR spectroscopy","docAbstract":"

13C NMR spectroscopy is used to examine the hydroxyl group functionality of a series of humic and fulvic acids from different aquatic environments. Samples first are methylated with13C-labeled diazomethane. The NMR spectra of the diazomethylated samples allow one to distinguish between methyl esters of carboxylic acids, methyl ethers of phenolic hydroxyls, and methyl ethers of phenolic hydroxyls adjacent to two substituents. Samples are then permethylated with13C-labeled methyl iodide/NaH.13C NMR spectra of permethylated samples show that a significant fraction of the hydroxyl groups is not methylated with diazomethane alone. In these spectra methyl ethers of carbohydrate and aliphatic hydroxyls overlap with methyl ethers of phenolic hydroxyls. Side reactions of the methyltion procedure including carbon methylation in the CH3I/NaH procedure, are also examined. Humic and fulvic acids from bog, swamp, groundwater, and lake waters shows some differences in their distribution of hydroxyl groups, mainly in the concentrations of phenolic hydroxyls, which may be attributed to their different biogeochemical origins.

","language":"English","publisher":"Elsevier","doi":"10.1016/0146-6380(87)90016-7","usgsCitation":"Thorn, K.A., Steelink, C., and Wershaw, R.L., 1987, Methylation patterns of aquatic humic substances determined by13C NMR spectroscopy: Organic Geochemistry, v. 11, no. 3, p. 123-137, https://doi.org/10.1016/0146-6380(87)90016-7.","productDescription":"15 p.","startPage":"123","endPage":"137","costCenters":[],"links":[{"id":225766,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a561ae4b0c8380cd6d357","contributors":{"authors":[{"text":"Thorn, Kevin A. 0000-0003-2236-5193 kathorn@usgs.gov","orcid":"https://orcid.org/0000-0003-2236-5193","contributorId":3288,"corporation":false,"usgs":true,"family":"Thorn","given":"Kevin","email":"kathorn@usgs.gov","middleInitial":"A.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":368000,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Steelink, C.","contributorId":55973,"corporation":false,"usgs":true,"family":"Steelink","given":"C.","email":"","affiliations":[],"preferred":false,"id":368001,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"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":368002,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":44455,"text":"wri854240 - 1987 - Geology and hydrology of the deep bedrock aquifers in eastern Colorado","interactions":[],"lastModifiedDate":"2023-04-11T18:33:05.976912","indexId":"wri854240","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"85-4240","title":"Geology and hydrology of the deep bedrock aquifers in eastern Colorado","docAbstract":"

Deep bedrock aquifers are present in rocks of Cretaceous through Pennsylvanian age in eastern Colorado. These aquifers are the Laramie-Fox Hills (the uppermost aquifer studied), Fort Hays-Codell, Dakota-Cheyenne, Entrada-Dockum, Lyons, and Fountain. Structural mapping indicates the aquifers are 2,000 to 9,000 ft below land surface in most of eastern Colorado but outcrop in local areas in a narrow band along the Front Range of the Rocky Mountains. Recharge primarily occurs in outcrops and produces a northerly or easterly groundwater flow to discharge areas along the South Platte or Arkansas Rivers. Deep aquifers also discharge by underflow to Kansas and Nebraska. Some water-yielding strata in the Dakota-Cheyenne aquifer are not in hydraulic connection with the aquifer, and abnormal fluid pressures, trapped hydrocarbons, and high dissolved-solids concentrations are found in these strata. Temperature and dissolved-solids mapping indicate water temperatures of 100 to 210 in northeastern Colorado and a zone of relatively fresh water extending through a 7,000 sq mi area of the Dakota-Cheyenne aquifer in southeastern Colorado. Water levels in the Laramie-Fox Hills aquifer continue to decline as much as 12 ft/yr in local areas near Denver. 

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri854240","usgsCitation":"Robson, S.G., and Banta, E.R., 1987, Geology and hydrology of the deep bedrock aquifers in eastern Colorado: U.S. Geological Survey Water-Resources Investigations Report 85-4240, 6 Plates: 32.41 x 48.12 inches or smaller, https://doi.org/10.3133/wri854240.","productDescription":"6 Plates: 32.41 x 48.12 inches or smaller","costCenters":[],"links":[{"id":161899,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":415584,"rank":8,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_33756.htm","linkFileType":{"id":5,"text":"html"}},{"id":275851,"rank":7,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1985/4240/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":275852,"rank":6,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1985/4240/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":275853,"rank":5,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1985/4240/plate-3.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":275854,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1985/4240/plate-4.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":275856,"rank":2,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1985/4240/plate-6.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":275855,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/wri/1985/4240/plate-5.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Colorado","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -105.402,\n 41\n ],\n [\n -105.402,\n 37\n ],\n [\n -102.045,\n 37\n ],\n [\n -102.045,\n 41\n ],\n [\n -105.402,\n 41\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b4693","contributors":{"authors":[{"text":"Robson, S. G.","contributorId":97102,"corporation":false,"usgs":true,"family":"Robson","given":"S.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":229798,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Banta, E. R.","contributorId":63038,"corporation":false,"usgs":true,"family":"Banta","given":"E.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":229797,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70015264,"text":"70015264 - 1987 - External effects of irrigators' pumping decisions, high plains aquifer","interactions":[],"lastModifiedDate":"2018-02-21T11:07:48","indexId":"70015264","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"External effects of irrigators' pumping decisions, high plains aquifer","docAbstract":"

The High Plains aquifer, which underlies about 174,000 square miles (1 square mile = 2.59 km2) in the Great Plains, is the principal source of water in one of the nation's major agricultural areas. This paper examines relationships between the scale of management areas and physical factors, resulting from the lateral movement of groundwater, that limit the ability of irrigators in the High Plains to reduce their own future pumping lifts. At the scale of individual farms, irrigators have very limited ability to “bank” water in order to obtain reduced future pumping lifts. On the other hand, at the scales typical of regional management, reductions in pumpage will result primarily in reductions in water level declines within the management area.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR023i007p01123","usgsCitation":"Alley, W.M., and Schefter, J.E., 1987, External effects of irrigators' pumping decisions, high plains aquifer: Water Resources Research, v. 23, no. 7, p. 1123-1130, https://doi.org/10.1029/WR023i007p01123.","productDescription":"8 p.","startPage":"1123","endPage":"1130","costCenters":[],"links":[{"id":223760,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Great Plains","volume":"23","issue":"7","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505a046ee4b0c8380cd509a4","contributors":{"authors":[{"text":"Alley, William M. walley@usgs.gov","contributorId":1661,"corporation":false,"usgs":true,"family":"Alley","given":"William","email":"walley@usgs.gov","middleInitial":"M.","affiliations":[{"id":502,"text":"Office of Surface Water","active":true,"usgs":true}],"preferred":false,"id":370493,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schefter, John E.","contributorId":21155,"corporation":false,"usgs":true,"family":"Schefter","given":"John","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":370492,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014108,"text":"70014108 - 1987 - Isotopic composition of pyrite: Relationship to organic matter type and iron availability in some North American cretaceous shales","interactions":[],"lastModifiedDate":"2023-11-17T01:04:56.721853","indexId":"70014108","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1214,"text":"Chemical Geology: Isotope Geoscience Section","active":true,"publicationSubtype":{"id":10}},"title":"Isotopic composition of pyrite: Relationship to organic matter type and iron availability in some North American cretaceous shales","docAbstract":"

The S isotope composition of pyrite in Cretaceous shales from the Western Interior of North America is related to organic C abundance, kerogen type and Fe availability. Both calcareous and noncalcareous rocks show a correlation between S and C, but noncalcareous rocks are relatively enriched in S with a higher S/C ratio. This higher ratio probably shows that pyrite formation was Fe limited in the calcareous rocks. Organic-carbon-rich noncalcareous shales accumulated slowly beneath anoxic bottom waters. The anoxic bottom waters allowed hydrogen-rich organic matter to be preserved. Such shales have a narrow range of 34S-depleted sulfide and have Fe/S ratios like stoichiometric pyrite, suggesting that pyrite formation in organic-rich shales was also limited by Fe availability. Conversely, organic-poor shales commonly accumulated at comparatively high rates, contain hydrogen-poor and refractory organic matter, and have a wide range of pyrite-S isotopic compositions. These organic-poor shales contain post-sulfidic authigenic minerals such as siderite and have excess reactive Fe rather than pyrite stoichiometry. Evidently Fe played a large role in early diagenesis and determined the course of post-sulfidic diagenesis. Fe availability was, however, mainly controlled by provenance, by the rates of sediment accumulation, and by the oxygen content of the depositional environment.

","language":"English","publisher":"Elsevier","doi":"10.1016/0168-9622(87)90009-1","issn":"01689622","usgsCitation":"Gautier, D.L., 1987, Isotopic composition of pyrite: Relationship to organic matter type and iron availability in some North American cretaceous shales: Chemical Geology: Isotope Geoscience Section, v. 65, no. 3-4, p. 293-303, https://doi.org/10.1016/0168-9622(87)90009-1.","productDescription":"11 p.","startPage":"293","endPage":"303","numberOfPages":"11","costCenters":[],"links":[{"id":226134,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"65","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3fa4e4b0c8380cd646b0","contributors":{"authors":[{"text":"Gautier, D. L.","contributorId":69996,"corporation":false,"usgs":true,"family":"Gautier","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":367599,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014769,"text":"70014769 - 1987 - Isolation of nonvolatile, organic solutes from natural waters by zeotrophic distillation of water from N,N-dimethylformamide","interactions":[],"lastModifiedDate":"2020-03-05T19:49:26","indexId":"70014769","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"Isolation of nonvolatile, organic solutes from natural waters by zeotrophic distillation of water from N,N-dimethylformamide","docAbstract":"Nonvolatile, organic solutes that comprise the dissolved organic carbon (DOC) in saline waters were isolated by removal of the water by distillation from a N,N-dimethylformamideformic acid-acetonitrile mixture. Salts isolated with the DOC were removed by crystallization of sodium chloride and sodium sulfate from the solvent mixture, removal of silicic acid by acidification and precipitation, removal of boric acid by methylation and volatilization, and removal of phosphate by zinc acetate precipitation. Chemical alteration of the organic solutes was minimized during evaporative concentration steps by careful control of acid concentrations in the solvent mixture and was minimized during drying by conversion of the samples to pyridinium and sodium salts. Recoveries of various hydrophilic organic standards from aqueous salt solutions and recoveries of natural organic solutes from various water samples varied from 60 to 100%. Losses of organic solutes during the isolation procedure were nonselective and related to the number of salt- and precipitate-washing cycles in the procedure.","language":"English","publisher":"ACS Publications","doi":"10.1021/ac00136a013","issn":"00032700","usgsCitation":"Leenheer, J., Brown, P., and Stiles, E., 1987, Isolation of nonvolatile, organic solutes from natural waters by zeotrophic distillation of water from N,N-dimethylformamide: Analytical Chemistry, v. 59, no. 9, p. 1313-1319, https://doi.org/10.1021/ac00136a013.","productDescription":"7 p.","startPage":"1313","endPage":"1319","numberOfPages":"7","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":225468,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"59","issue":"9","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a3f53e4b0c8380cd64446","contributors":{"authors":[{"text":"Leenheer, J.A.","contributorId":75123,"corporation":false,"usgs":true,"family":"Leenheer","given":"J.A.","affiliations":[],"preferred":false,"id":369245,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, P.A.","contributorId":73245,"corporation":false,"usgs":true,"family":"Brown","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":369244,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stiles, E.A.","contributorId":42353,"corporation":false,"usgs":true,"family":"Stiles","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":369243,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014802,"text":"70014802 - 1987 - DEFORESTATION AND LANDSLIDES IN YUNNAN, CHINA.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:32","indexId":"70014802","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"DEFORESTATION AND LANDSLIDES IN YUNNAN, CHINA.","docAbstract":"Landslides historically have caused severe erosion problems in the Xiao River drainage region of northeastern Yunnan Province, China, that hence resulted in serious economic and social consequences. Owing to monsoonal storms of high rainfall intensity, the erosion potential is high in this mountainous, seismically active region. Landslides transported large quantities of materials into the ravines. During intense storms, high runoff from the deforested areas has mobilized this material into debris flows. Where these flows emerged onto flatter slopes in the lower parts of the watersheds, the channels were too small to hold them, so farmland and villages were inundated. Debris flows in this region during June-August 1985 killed 12 people, damaged roads and the main rail line to Kunming, the capital of Yunnan Province, inundated farmland, and overflowed debris-retention structures. To mitigate these severe erosion problems, several different methods have been used.","conferenceTitle":"Erosion Control - You're Gambling Without It, Proceedings of Conference XVIII.","conferenceLocation":"Reno, NV, USA","language":"English","publisher":"Int Erosion Control Assoc","publisherLocation":"Pinole, CA, USA","usgsCitation":"Wieczorek, G.F., Wu, J., and Li, T., 1987, DEFORESTATION AND LANDSLIDES IN YUNNAN, CHINA., Erosion Control - You're Gambling Without It, Proceedings of Conference XVIII., Reno, NV, USA, p. 181-196.","startPage":"181","endPage":"196","numberOfPages":"16","costCenters":[],"links":[{"id":225978,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fd3fe4b0c8380cd4e6f5","contributors":{"authors":[{"text":"Wieczorek, Gerald F.","contributorId":81889,"corporation":false,"usgs":true,"family":"Wieczorek","given":"Gerald","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":369334,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wu, Jishan","contributorId":32305,"corporation":false,"usgs":true,"family":"Wu","given":"Jishan","email":"","affiliations":[],"preferred":false,"id":369333,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Li, Tianchi","contributorId":26083,"corporation":false,"usgs":true,"family":"Li","given":"Tianchi","email":"","affiliations":[],"preferred":false,"id":369332,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1003711,"text":"1003711 - 1987 - Industrial halide wastes cause acute mortality of snow geese in Oklahoma","interactions":[],"lastModifiedDate":"2018-03-23T16:43:05","indexId":"1003711","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Industrial halide wastes cause acute mortality of snow geese in Oklahoma","docAbstract":"

An examination of 97 dead migratory waterfowl collected at an industrial facility showed that the birds had had severe gastric and intestinal hemorrhaging. Water samples taken at on-site waste lagoons contained 6,750 mg/L fluoride, 4,500 mg/L bromine and 1,500 mg/L boron. Brain and liver tissues contained high levels of fluoride, as compared with tissues of birds collected at a control site. From the necropsy results, the high concentration of fluoride in the water samples and the elevated tissue residues, we conclude that the birds died from acute fluoride poisoning.

","language":"English","publisher":"Society of Environmental Toxicology and Chemistry","doi":"10.1002/etc.5620060406","usgsCitation":"Andreasen, J.K., and Stroud, R.K., 1987, Industrial halide wastes cause acute mortality of snow geese in Oklahoma: Environmental Toxicology and Chemistry, v. 6, no. 4, p. 291-293, https://doi.org/10.1002/etc.5620060406.","productDescription":"3 p.","startPage":"291","endPage":"293","numberOfPages":"3","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":131113,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oklahoma","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -103.07373046875,\n 37.09023980307208\n ],\n [\n -94.59228515625,\n 37.055177106660814\n ],\n [\n -94.39453125,\n 33.61461929233378\n ],\n [\n -95.2734375,\n 33.742612777346885\n ],\n [\n -96.35009765625,\n 33.5963189611327\n ],\n [\n -97.00927734375,\n 33.5963189611327\n ],\n [\n -100.12939453125,\n 34.52466147177172\n ],\n [\n -100.17333984375,\n 36.31512514748051\n ],\n [\n -103.095703125,\n 36.4566360115962\n ],\n [\n -103.07373046875,\n 37.09023980307208\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"6","issue":"4","noUsgsAuthors":false,"publicationDate":"1987-04-01","publicationStatus":"PW","scienceBaseUri":"4f4e49f1e4b07f02db5eeaba","contributors":{"authors":[{"text":"Andreasen, J. K.","contributorId":38513,"corporation":false,"usgs":true,"family":"Andreasen","given":"J.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":314017,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stroud, Richard K.","contributorId":102837,"corporation":false,"usgs":true,"family":"Stroud","given":"Richard","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":314018,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}