{"pageNumber":"4806","pageRowStart":"120125","pageSize":"25","recordCount":184617,"records":[{"id":70014739,"text":"70014739 - 1987 - Coupled vibrations of rectangular buildings subjected to normally-incident random wind loads","interactions":[],"lastModifiedDate":"2024-05-23T14:57:29.512192","indexId":"70014739","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2511,"text":"Journal of Wind Engineering and Industrial Aerodynamics","active":true,"publicationSubtype":{"id":10}},"title":"Coupled vibrations of rectangular buildings subjected to normally-incident random wind loads","docAbstract":"<p id=\"SP0005\">A method for analyzing the three-directional coupled dynamic response of wind-excited buildings is presented. The method is based on a random vibration concept and is parallel to those currently used for analyzing alongwind response. Only the buildings with rectangular cross-section and normally-incident wind are considered. The alongwind pressures and their correlations are represented by the well-known expressions that are available in the literature. The acrosswind forces are assumed to be mainly due to vortex shedding. The torque acting on the building is taken as the sum of the torque due to random alongwind forces plus the torque due to asymmetric acrosswind forces.</p><p id=\"SP0010\">The study shows the following: (1) amplitude of acrosswind vibrations can be several times greater than that of alongwind vibrations; (2) torsional vibrations are significant if the building has large frontal width, and/or it is asymmetric, and/or its torsional natural frequency is low; (3) even a perfectly symmetric structure with normally incident wind can experience significant torsional vibrations due to the randomness of wind pressures.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0167-6105(87)90040-7","issn":"01676105","usgsCitation":"Safak, E., and Foutch, D., 1987, Coupled vibrations of rectangular buildings subjected to normally-incident random wind loads: Journal of Wind Engineering and Industrial Aerodynamics, v. 26, no. 2, p. 129-148, https://doi.org/10.1016/0167-6105(87)90040-7.","productDescription":"20 p.","startPage":"129","endPage":"148","numberOfPages":"20","costCenters":[],"links":[{"id":226176,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fc8be4b0c8380cd4e2e8","contributors":{"authors":[{"text":"Safak, E.","contributorId":104070,"corporation":false,"usgs":true,"family":"Safak","given":"E.","email":"","affiliations":[],"preferred":false,"id":369168,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Foutch, D.A.","contributorId":100251,"corporation":false,"usgs":true,"family":"Foutch","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":369167,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014692,"text":"70014692 - 1987 - Products of hexachlorocyclopentadiene (C-56) in aqueous solution","interactions":[],"lastModifiedDate":"2024-02-12T16:29:49.888192","indexId":"70014692","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":"Products of hexachlorocyclopentadiene (C-56) in aqueous solution","docAbstract":"<p><span>The photodegradation and degradation products of hexachlorocyclopentadiene (C-56) in aqueous solutions were studied in the laboratory. In each case, the half-life of C-56 was less than 4 min when exposed to sunlight. At least eight degradation products were positively or tentatively identified: 2,3,4,4,5-Pentachloro-2-cyclopentenone, hexachloro-2-cyclopentenone and hexachloro-3-cyclopentenone were the primary photodegradation products, and pentachloro-</span><i>cis</i><span>-2,4-pentadienoic acid, Z- and E-pentachlorobutadiene and tetrachlorobutyne were the secondary degradation products. Dissociation of the primary photolysis products may proceed through corresponding pentadienoic acids to form smaller molecular weight compounds such as pentachlorobutadiene isomers and tetrachlorobutyne. In addition, dimerization of 2,3,4,4,5-pentachloro-2-cyclopentenone to form higher molecular weight compounds such as hexachloroindenone may present a minor route of degradation. The results also indicate that C-56 is highly photoreactive and suggest a possible pathway for the compound's transformation in the environment when exposed to sunlight.</span></p>","language":"English","publisher":"Society of Environmental Toxicology and Chemistry","doi":"10.1002/etc.5620060506","issn":"07307268","usgsCitation":"Chou, S.J., Griffin, R.A., Chou, I., and Larson, R., 1987, Products of hexachlorocyclopentadiene (C-56) in aqueous solution: Environmental Toxicology and Chemistry, v. 6, no. 5, p. 371-376, https://doi.org/10.1002/etc.5620060506.","productDescription":"6 p.","startPage":"371","endPage":"376","numberOfPages":"6","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":225329,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"5","noUsgsAuthors":false,"publicationDate":"1987-05-01","publicationStatus":"PW","scienceBaseUri":"505a8df9e4b0c8380cd7ef40","contributors":{"authors":[{"text":"Chou, Sheng-Fu J.","contributorId":9777,"corporation":false,"usgs":true,"family":"Chou","given":"Sheng-Fu","middleInitial":"J.","affiliations":[],"preferred":false,"id":369013,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Griffin, R. A.","contributorId":46211,"corporation":false,"usgs":true,"family":"Griffin","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":369015,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chou, I.-M. 0000-0001-5233-6479","orcid":"https://orcid.org/0000-0001-5233-6479","contributorId":44283,"corporation":false,"usgs":true,"family":"Chou","given":"I.-M.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":369014,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Larson, R.A.","contributorId":58786,"corporation":false,"usgs":true,"family":"Larson","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":369016,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70015230,"text":"70015230 - 1987 - Distribution of ferromanganese nodules in the Pacific Ocean.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:54","indexId":"70015230","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1220,"text":"Chemie der Erde","active":true,"publicationSubtype":{"id":10}},"title":"Distribution of ferromanganese nodules in the Pacific Ocean.","docAbstract":"The occurrence and distribution of deep-ocean ferromanganese nodules are related to the lithology of pelagic surface-sediment, sediment accumulation rates, sea-floor bathymetry, and benthic circulation. Nodules often occur in association with both biosiliceous and pelagic clay, and less often with calcareous sediment. Factors which influence the rather complex patterns of sediment lithology and accumulation rates include the supply of material to the sea-floor and secondary processes in the deep ocean which alter or redistribute that supply. The supply is largely controlled by: 1) proximity to a source of alumino-silicate material and 2) primary biological productivity in the photic zone of the ocean. Primary productivity controls the 'rain' to the sea-floor of biogenic detritus, which consists mostly of siliceous and calcareous tests of planktonic organisms but also contains smaller proportions of phosphatic material and organic matter. The high accumulation rate (5 mm/1000 yr) of sediment along the equator is a direct result of high productivity in this region of the Pacific. Secondary processes include the dissolution of particulate organic matter at depth in the ocean, notably CaCO3, and the redistribution of sedimentary particles by deep-ocean currents. -J.M.H.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemie der Erde","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00092819","usgsCitation":"Piper, D., Swint-Iki, T., and McCoy, F., 1987, Distribution of ferromanganese nodules in the Pacific Ocean.: Chemie der Erde, v. 46, no. 1-2, p. 171-184.","startPage":"171","endPage":"184","numberOfPages":"14","costCenters":[],"links":[{"id":224140,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a02cfe4b0c8380cd501ef","contributors":{"authors":[{"text":"Piper, D.Z.","contributorId":34154,"corporation":false,"usgs":false,"family":"Piper","given":"D.Z.","email":"","affiliations":[],"preferred":false,"id":370386,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swint-Iki, T. R.","contributorId":45009,"corporation":false,"usgs":true,"family":"Swint-Iki","given":"T. R.","affiliations":[],"preferred":false,"id":370387,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McCoy, F.W.","contributorId":86899,"corporation":false,"usgs":true,"family":"McCoy","given":"F.W.","email":"","affiliations":[],"preferred":false,"id":370388,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014486,"text":"70014486 - 1987 - Late Cretaceous-Cenozoic history of deciduousness and the terminal Cretaceous event.","interactions":[],"lastModifiedDate":"2025-06-05T16:28:00.719919","indexId":"70014486","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3001,"text":"Paleobiology","active":true,"publicationSubtype":{"id":10}},"title":"Late Cretaceous-Cenozoic history of deciduousness and the terminal Cretaceous event.","docAbstract":"<div class=\"abstract-content\"><div class=\"abstract\" data-abstract-type=\"normal\"><p>Deciduousness in mesic, broad-leaved plants occurred in disturbed, middle-latitude environments during the Late Cretaceous. Only in polar environments in the Late Cretaceous was the deciduous element dominant, although of low diversity. The terminal Cretaceous event resulted in wide-spread selection for plants of deciduous habit and diversification of deciduous taxa, thus leaving a lasting imprint on Northern Hemisphere vegetation. Various environmental factors have played important roles in subsequent diversification of mesic, broad-leaved deciduous taxa and in origination and decline of broad-leaved deciduous forests. Low diversity and rarity of mesic deciduous plants in the post-Cretaceous of the Southern Hemisphere indicate that the inferred “impact winter” of the terminal Cretaceous event had little effect on Southern Hemisphere vegetation and climate.</p></div></div>","language":"English","publisher":"Cambridge University Press","doi":"10.1017/S0094837300008769","issn":"00948373","usgsCitation":"Wolfe, J.A., 1987, Late Cretaceous-Cenozoic history of deciduousness and the terminal Cretaceous event.: Paleobiology, v. 13, no. 2, p. 215-226, https://doi.org/10.1017/S0094837300008769.","productDescription":"12 p.","startPage":"215","endPage":"226","numberOfPages":"12","costCenters":[],"links":[{"id":225256,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"2","noUsgsAuthors":false,"publicationDate":"2016-04-08","publicationStatus":"PW","scienceBaseUri":"505a44dde4b0c8380cd66e5d","contributors":{"authors":[{"text":"Wolfe, J. A.","contributorId":14026,"corporation":false,"usgs":true,"family":"Wolfe","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":368509,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014487,"text":"70014487 - 1987 - EFFECT OF STREAMFLOW CONDITIONS ON GAS-TRANSFER COEFFICIENTS.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:33","indexId":"70014487","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"EFFECT OF STREAMFLOW CONDITIONS ON GAS-TRANSFER COEFFICIENTS.","docAbstract":"Contrary to the findings of previous studies of channel-controlled stream reaches, it was found that, in four reaches of a small stream characterized by a series of pools and riffles, reaeration coefficients decrease with decreasing discharge. In the reach with the most pool-and-riffle development, the measured rearation coefficient under low-flow conditions was 86 percent less than its value during average-flow conditions. A regression equation was developed which accurately predicted the measured values in the four study reaches. The equation may have applicability to other similar pool-and-riffle streams.","conferenceTitle":"Hydraulic Engineering, Proceedings of the 1987 National Conference.","conferenceLocation":"Williamsburg, VA, USA","language":"English","publisher":"ASCE","publisherLocation":"New York, NY, USA","isbn":"0872626105","usgsCitation":"Smoot, J.L., 1987, EFFECT OF STREAMFLOW CONDITIONS ON GAS-TRANSFER COEFFICIENTS., Hydraulic Engineering, Proceedings of the 1987 National Conference., Williamsburg, VA, USA, p. 980-985.","startPage":"980","endPage":"985","numberOfPages":"6","costCenters":[],"links":[{"id":225257,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0457e4b0c8380cd50904","contributors":{"authors":[{"text":"Smoot, James L.","contributorId":13605,"corporation":false,"usgs":true,"family":"Smoot","given":"James","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":368510,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015226,"text":"70015226 - 1987 - Distribution and abundance of tidal marshes along the coast of Maine","interactions":[],"lastModifiedDate":"2020-09-08T15:05:38.543037","indexId":"70015226","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1583,"text":"Estuaries","active":true,"publicationSubtype":{"id":10}},"title":"Distribution and abundance of tidal marshes along the coast of Maine","docAbstract":"<p><span>Planimetry studies of coastal geology maps prepared by the Maine Geological Survey show that there is more than an order of magnitude more tidal marsh area in the state of Maine than documented in previously published estimates. The highly convoluted coast of Maine, which is approximately 5,970 km long, contains almost 79 km</span><sup>2</sup><span>&nbsp;of salt marsh, far more than any other New England state, New York, or the Bay of Fundy region. Reasonable estimates for the per-unit primary productivity of salt marshes lead to projections of total marsh productivity on the order of 10</span><sup>10</sup><span>&nbsp;g dry weight yr</span><sup>−1</sup><span>&nbsp;for the Maine coast and 10</span><sup>11</sup><span>&nbsp;g dry weight yr</span><sup>−1</sup><span>&nbsp;for the Gulf of Maine as a whole. Distribution of tidal marsh area is strongly controlled by coastal geomorphology, which varies considerably along the coast of Maine. The salt marsh area is concentrated in the southwestern coastal region of arcuate bays, where marshes have developed behind sandy beaches. A series of long islands and bedrock peninsulas in the south-central portion of the coast also provides sheltered areas where large marshes occur. Northeast of Penobscot Bay salt marshes become more numerous and smaller in average areal extent. A lack of protection from waves, along with limited sources of glacio-fluvial and glacio-marine sediments, restricts the occurrence of salt marshes in that region to the frignes of coves and tidal rivers.</span></p>","language":"English","publisher":"Springer","doi":"10.2307/1352176","usgsCitation":"Jacobson, H., Jacobson, G., and Kelley, J.T., 1987, Distribution and abundance of tidal marshes along the coast of Maine: Estuaries, v. 10, no. 2, p. 126-131, https://doi.org/10.2307/1352176.","productDescription":"6 p.","startPage":"126","endPage":"131","numberOfPages":"6","costCenters":[],"links":[{"id":224026,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maine","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -70.3564453125,\n              42.8115217450979\n            ],\n            [\n              -68.73046875,\n              43.77109381775651\n            ],\n            [\n              -66.4892578125,\n              44.55916341529182\n            ],\n            [\n              -67.32421875,\n              45.24395342262324\n            ],\n            [\n              -69.3017578125,\n              45.213003555993964\n            ],\n            [\n              -71.19140625,\n              44.02442151965934\n            ],\n            [\n              -70.751953125,\n              43.068887774169625\n            ],\n            [\n              -70.3564453125,\n              42.8115217450979\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"10","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0276e4b0c8380cd50063","contributors":{"authors":[{"text":"Jacobson, H.A.","contributorId":58028,"corporation":false,"usgs":true,"family":"Jacobson","given":"H.A.","email":"","affiliations":[],"preferred":false,"id":370373,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jacobson, G.L.","contributorId":71321,"corporation":false,"usgs":true,"family":"Jacobson","given":"G.L.","email":"","affiliations":[],"preferred":false,"id":370374,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kelley, J. T.","contributorId":34197,"corporation":false,"usgs":true,"family":"Kelley","given":"J.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":370372,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014488,"text":"70014488 - 1987 - DISCHARGE AND DEPTH BEHIND A PARTIALLY BREACHED DAM.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:33","indexId":"70014488","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"DISCHARGE AND DEPTH BEHIND A PARTIALLY BREACHED DAM.","docAbstract":"The role that the velocity-distribution correction factor plays in the determination of the flood discharge and corresponding flow depth behind a partially breached dam is investigated. Assumption of a uniformly progressive flow for an established dam-break flood in a rectangular channel of infinite extent leads to the formulation of a theoretical relation between the depth and velocity of flow expressed in differential form. Integrating this ordinary differential equation, one can express the velocity in terms of the depth.","conferenceTitle":"Hydraulic Engineering, Proceedings of the 1987 National Conference.","conferenceLocation":"Williamsburg, VA, USA","language":"English","publisher":"ASCE","publisherLocation":"New York, NY, USA","isbn":"0872626105","usgsCitation":"Chen, C., 1987, DISCHARGE AND DEPTH BEHIND A PARTIALLY BREACHED DAM., Hydraulic Engineering, Proceedings of the 1987 National Conference., Williamsburg, VA, USA, p. 648-654.","startPage":"648","endPage":"654","numberOfPages":"7","costCenters":[],"links":[{"id":225315,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fd4ae4b0c8380cd4e74e","contributors":{"authors":[{"text":"Chen, Cheng-lung","contributorId":30752,"corporation":false,"usgs":true,"family":"Chen","given":"Cheng-lung","email":"","affiliations":[],"preferred":false,"id":368511,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015225,"text":"70015225 - 1987 - PROTON MICROPROBE ANALYSIS OF TRACE-ELEMENT VARIATIONS IN VITRINITES IN THE SAME AND DIFFERENT COAL BEDS.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:54","indexId":"70015225","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3336,"text":"Scanning Micros","active":true,"publicationSubtype":{"id":10}},"title":"PROTON MICROPROBE ANALYSIS OF TRACE-ELEMENT VARIATIONS IN VITRINITES IN THE SAME AND DIFFERENT COAL BEDS.","docAbstract":"The PIXE (proton-induced X-ray emission) microprobe can be used for nondestructive, in-situ analyses of areas as small as those analyzed by the electron microprobe, and has a sensitivity of detection as much as two orders of magnitude better than the electron microprobe. Preliminary studies demonstrated that PIXE provides a capability for quantitative determination of elemental concentrations in individual coal maceral grains with a detection limit of 1-10 ppm for most elements analyzed. Encouraged by the earlier results, we carried out the analyses reported below to examine trace element variations laterally (over a km range) as well as vertically (cm to m) in the I and J coal beds in the Upper Cretaceous Ferron Sandstone Member of the Mancos Shale in central Utah, and to compare the data with the data from two samples of eastern coals of Pennsylvanian age.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Scanning Micros","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"08917035","usgsCitation":"Minkin, J., Chao, E.C., Blank, H., and Dulong, F., 1987, PROTON MICROPROBE ANALYSIS OF TRACE-ELEMENT VARIATIONS IN VITRINITES IN THE SAME AND DIFFERENT COAL BEDS.: Scanning Micros, v. 1, no. 2, p. 503-513.","startPage":"503","endPage":"513","numberOfPages":"11","costCenters":[],"links":[{"id":224025,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7382e4b0c8380cd770a7","contributors":{"authors":[{"text":"Minkin, J.A.","contributorId":38588,"corporation":false,"usgs":true,"family":"Minkin","given":"J.A.","affiliations":[],"preferred":false,"id":370368,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chao, E. C. T.","contributorId":96713,"corporation":false,"usgs":true,"family":"Chao","given":"E.","email":"","middleInitial":"C. T.","affiliations":[],"preferred":false,"id":370371,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blank, Herma","contributorId":96013,"corporation":false,"usgs":true,"family":"Blank","given":"Herma","email":"","affiliations":[],"preferred":false,"id":370370,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dulong, F.T.","contributorId":81490,"corporation":false,"usgs":true,"family":"Dulong","given":"F.T.","affiliations":[],"preferred":false,"id":370369,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1003819,"text":"1003819 - 1987 - A solitary case of duck plague in a wild mallard","interactions":[],"lastModifiedDate":"2024-07-16T11:14:03.576687","indexId":"1003819","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2507,"text":"Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"A solitary case of duck plague in a wild mallard","docAbstract":"<div id=\"10406114\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Duck plague was diagnosed on the basis of pathology and virus isolation in a wild female mallard<span>&nbsp;</span><i>Anas platyrhynchos</i><span>&nbsp;</span>found dead near Saskatoon, Saskatchewan. Day-old Pekin ducklings and one of two adult mallards died with lesions typical of duck plague following inoculation of tissue from the wild bird. This is believed to be the only reported case of duck plague in a wild bird since a major outbreak occurred in South Dakota in 1973, and the fourth such report in North America.</p></div>","language":"English","publisher":"Wildlife Disease Association","doi":"10.7589/0090-3558-23.3.479","usgsCitation":"Wobeser, G., and Docherty, D.E., 1987, A solitary case of duck plague in a wild mallard: Journal of Wildlife Diseases, v. 23, no. 3, p. 479-482, https://doi.org/10.7589/0090-3558-23.3.479.","productDescription":"4 p.","startPage":"479","endPage":"482","numberOfPages":"4","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":130609,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","state":"Saskatchewan","city":"Saskatoon","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      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E.","contributorId":83469,"corporation":false,"usgs":true,"family":"Docherty","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":314392,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015224,"text":"70015224 - 1987 - Neutron activation determination of iridium, gold, platinum, and silver in geologic samples","interactions":[],"lastModifiedDate":"2012-03-12T17:18:54","indexId":"70015224","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2440,"text":"Journal of Radioanalytical and Nuclear Chemistry Articles","active":true,"publicationSubtype":{"id":10}},"title":"Neutron activation determination of iridium, gold, platinum, and silver in geologic samples","docAbstract":"Low-level methods for the determination of iridium and other noble metals have become increasingly important in recent years due to interest in locating abundance anomalies associated with the Cretaceous and Tertiary (K-T) boundary. Typical iridium anomalies are in the range of 1 to 100 ??g/kg (ppb). Thus methods with detection limits near 0.1 ??g/kg should be adequate to detect K-T boundary anomalies. Radiochemical neutron activation analysis methods continue to be required although instrumental neutron activation analysis techniques employing elaborate gamma-counters are under development. In the procedure developed in this study samples irradiated in the epithermal neutron facility of the U. S. Geological Survey TRIGA Reactor (Denver, Colorado) are treated with a mini-fire assay technique. The iridium, gold, and silver are collected in a 1-gram metallic lead button. Primary contaminants at this stage are arsenic and antimony. These can be removed by heating the button with a mixture of sodium perioxide and sodium hydroxide. The resulting 0.2-gram lead bead is counted in a Compton suppression spectrometer. Carrier yields are determined by reirradiation of the lead beads. This procedure has been applied to the U.S.G.S. Standard Rock PCC-1 and samples from K-T boundary sites in the Western Interior of North America. ?? 1987 Akade??miai Kiado??.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Radioanalytical and Nuclear Chemistry Articles","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF02036054","issn":"02365731","usgsCitation":"Millard, H.T., 1987, Neutron activation determination of iridium, gold, platinum, and silver in geologic samples: Journal of Radioanalytical and Nuclear Chemistry Articles, v. 113, no. 1, p. 125-132, https://doi.org/10.1007/BF02036054.","startPage":"125","endPage":"132","numberOfPages":"8","costCenters":[],"links":[{"id":205436,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF02036054"},{"id":224024,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6502e4b0c8380cd72acf","contributors":{"authors":[{"text":"Millard, Hugh T. Jr.","contributorId":67502,"corporation":false,"usgs":true,"family":"Millard","given":"Hugh","suffix":"Jr.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":370367,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015239,"text":"70015239 - 1987 - Petrologic characteristics of the 1982 and pre-1982 eruptive products of El Chichon volcano, Chiapas, Mexico","interactions":[],"lastModifiedDate":"2023-11-16T12:05:48.624767","indexId":"70015239","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1762,"text":"Geofisica Internacional","active":true,"publicationSubtype":{"id":10}},"title":"Petrologic characteristics of the 1982 and pre-1982 eruptive products of El Chichon volcano, Chiapas, Mexico","docAbstract":"Studies on a suite of rocks from this volcano indicate that the juvenile materials of the 1982 and pre-1982 eruptions of the volcano have essentially the same mineralogy and chemistry. Data suggest that chemical composition changed little over the 0.3 m.y. sample period. Modally, plagioclase is the dominant phenocryst, followed by amphibole, clinopyroxene and minor phases including anhydrite. Plagioclase phenocrysts show complex zoning: the anorthite-rich zones are probably the result of changing volatile P on the magma and may reflect the changes in the volcano's magma reservoir in response to repetitive, explosive eruptive activity.-R.E.S.","language":"English","publisher":"Universidad Nacional Autónoma de México","doi":"10.22201/igeof.00167169p.1987.26.1.1190","usgsCitation":"McGee, J.J., Tilling, R., and Duffield, W.A., 1987, Petrologic characteristics of the 1982 and pre-1982 eruptive products of El Chichon volcano, Chiapas, Mexico: Geofisica Internacional, v. 26, no. 1, p. 85-108, https://doi.org/10.22201/igeof.00167169p.1987.26.1.1190.","productDescription":"24 p.","startPage":"85","endPage":"108","numberOfPages":"24","costCenters":[],"links":[{"id":480110,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.22201/igeof.00167169p.1987.26.1.1190","text":"Publisher Index Page"},{"id":224296,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico","state":"Chiapas","otherGeospatial":"El Chichon volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -93.24815730528658,\n              17.377994091402513\n            ],\n            [\n              -93.24815730528658,\n              17.343344973263143\n            ],\n            [\n              -93.20883616891248,\n              17.343344973263143\n            ],\n            [\n              -93.20883616891248,\n              17.377994091402513\n            ],\n            [\n              -93.24815730528658,\n              17.377994091402513\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"26","issue":"1","noUsgsAuthors":false,"publicationDate":"1987-01-01","publicationStatus":"PW","scienceBaseUri":"505a7810e4b0c8380cd78611","contributors":{"authors":[{"text":"McGee, J. J.","contributorId":92271,"corporation":false,"usgs":true,"family":"McGee","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":370413,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tilling, R.I. 0000-0003-4263-7221","orcid":"https://orcid.org/0000-0003-4263-7221","contributorId":98311,"corporation":false,"usgs":true,"family":"Tilling","given":"R.I.","affiliations":[],"preferred":false,"id":370414,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Duffield, W. A.","contributorId":71935,"corporation":false,"usgs":true,"family":"Duffield","given":"W.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":370412,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014762,"text":"70014762 - 1987 - Heat transport by fluids during late Cretaceous regional metamorphism in the Big Maria Mountains, southeastern California","interactions":[],"lastModifiedDate":"2023-12-28T01:05:43.151862","indexId":"70014762","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Heat transport by fluids during late Cretaceous regional metamorphism in the Big Maria Mountains, southeastern California","docAbstract":"<p>The Big Maria Mountains of southeastern California comprise a Late Cretaceous regional metamorphic terrain involving Paleozoic cratonal sediments. Siliceous limestone of the upper Paleozoic Supai Formation has reacted to form massive wollastonite, requiring an enormous fluid flux. The minimum volume ratio of fluid:rock that is necessary to explain the formation of wollastonite may be calculated from the reaction quartz + calcite = wollastonite + CO<sub>2</sub>, using the method of Rice and Ferry. Given average conditions of 3 kbar, 500 °C, an infiltrating fluid of composition X<sub>H2O</sub><span>&nbsp;</span>= 1.00, an equilibrium fluid composition of X<sub>H2O</sub><span>&nbsp;</span>= 0.97, and 90% wollastonite in the final rock, a fluid:rock ratio of 17:1 may be calculated. Infiltrating fluids of composition 1.00 &gt; X<sub>H2O</sub><span>&nbsp;</span>&gt; 0.97 require still higher ratios. Metamorphic reactions which took place in other units of the sequence (metapelites, massive carbonates, metavolcaniclastics) did not record the massive fluid flux, but fluids must have passed through them to have affected structurally isolated masses of Supai Formation. Passage of fluids must have occurred along fractures.</p><p>Neither magmatism nor radioactive heat sources are adequate to explain the temperatures of metamorphism. If the minimum quantity of fluid that is estimated to have passed through the area was initially at 680 °C, it would result in a 300-degree rise in temperature over that of the stable-craton geotherm. Late metamorphic pegmatite dikes which are most abundant in areas of high metamorphic grade may stem from melts anatectically derived at deeper levels, perhaps as a result of the same fluid flux. Heat that is introduced by large fluid fluxes may be an important cause of anomalously high temperatures which are observed in many cases in regional metamorphic terrains.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1987)98<549:HTBFDL>2.0.CO;2","usgsCitation":"Hoisch, T., 1987, Heat transport by fluids during late Cretaceous regional metamorphism in the Big Maria Mountains, southeastern California: Geological Society of America Bulletin, v. 98, no. 5, p. 549-553, https://doi.org/10.1130/0016-7606(1987)98<549:HTBFDL>2.0.CO;2.","productDescription":"5 p.","startPage":"549","endPage":"553","numberOfPages":"5","costCenters":[],"links":[{"id":225400,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -114.94804091033109,\n              33.43077347463439\n            ],\n            [\n              -114.11307997283119,\n              33.43077347463439\n            ],\n            [\n              -114.11307997283119,\n              34.34277530971741\n            ],\n            [\n              -114.94804091033109,\n              34.34277530971741\n            ],\n            [\n              -114.94804091033109,\n              33.43077347463439\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"98","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3005e4b0c8380cd5d2de","contributors":{"authors":[{"text":"Hoisch, T.D.","contributorId":105863,"corporation":false,"usgs":true,"family":"Hoisch","given":"T.D.","affiliations":[],"preferred":false,"id":369226,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1007767,"text":"1007767 - 1987 - Age-size relationships of desert tortoises (Gopherus agassizii) in southern Nevada","interactions":[],"lastModifiedDate":"2023-12-04T23:37:20.883416","indexId":"1007767","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1337,"text":"Copeia","active":true,"publicationSubtype":{"id":10}},"title":"Age-size relationships of desert tortoises (Gopherus agassizii) in southern Nevada","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"American Society of Ichthyologists and Herpetologists (ASIH)","doi":"10.2307/1445561","usgsCitation":"Turner, F., Medica, P., and Bury, R., 1987, Age-size relationships of desert tortoises (Gopherus agassizii) in southern Nevada: Copeia, v. 1987, no. 4, p. 974-979, https://doi.org/10.2307/1445561.","productDescription":"6 p.","startPage":"974","endPage":"979","numberOfPages":"6","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130117,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1987","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae3e4b07f02db68921b","contributors":{"authors":[{"text":"Turner, F.B.","contributorId":95414,"corporation":false,"usgs":true,"family":"Turner","given":"F.B.","email":"","affiliations":[],"preferred":false,"id":315999,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Medica, P.A.","contributorId":77079,"corporation":false,"usgs":true,"family":"Medica","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":315998,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bury, R.B.","contributorId":25497,"corporation":false,"usgs":true,"family":"Bury","given":"R.B.","email":"","affiliations":[],"preferred":false,"id":315997,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015136,"text":"70015136 - 1987 - NEW APPLICATIONS IN THE INVERSION OF ACOUSTIC FULL WAVEFORM LOGS - RELATING MODE EXCITATION TO LITHOLOGY.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:56","indexId":"70015136","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2631,"text":"Log Analyst","active":true,"publicationSubtype":{"id":10}},"title":"NEW APPLICATIONS IN THE INVERSION OF ACOUSTIC FULL WAVEFORM LOGS - RELATING MODE EXCITATION TO LITHOLOGY.","docAbstract":"Existing techniques for the quantitative interpretation of waveform data have been based on one of two fundamental approaches: (1) simultaneous identification of compressional and shear velocities; and (2) least-squares minimization of the difference between experimental waveforms and synthetic seismograms. Techniques based on the first approach do not always work, and those based on the second seem too numerically cumbersome for routine application during data processing. An alternative approach is tested here, in which synthetic waveforms are used to predict relative mode excitation in the composite waveform. Synthetic waveforms are generated for a series of lithologies ranging from hard, crystalline rocks (Vp equals 6. 0 km/sec. and Poisson's ratio equals 0. 20) to soft, argillaceous sediments (Vp equals 1. 8 km/sec. and Poisson's ratio equals 0. 40). The series of waveforms illustrates a continuous change within this range of rock properties. Mode energy within characteristic velocity windows is computed for each of the modes in the set of synthetic waveforms. The results indicate that there is a consistent variation in mode excitation in lithology space that can be used to construct a unique relationship between relative mode excitation and lithology.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Log Analyst","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0024581X","usgsCitation":"Paillet, F.L., Cheng, C., and Meredith, J., 1987, NEW APPLICATIONS IN THE INVERSION OF ACOUSTIC FULL WAVEFORM LOGS - RELATING MODE EXCITATION TO LITHOLOGY.: Log Analyst, v. 28, no. 3, p. 307-320.","startPage":"307","endPage":"320","numberOfPages":"14","costCenters":[],"links":[{"id":223585,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6143e4b0c8380cd7189e","contributors":{"authors":[{"text":"Paillet, Frederick L.","contributorId":63820,"corporation":false,"usgs":true,"family":"Paillet","given":"Frederick","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":370172,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cheng, C.H.","contributorId":94443,"corporation":false,"usgs":true,"family":"Cheng","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":370173,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Meredith, J.A.","contributorId":49389,"corporation":false,"usgs":true,"family":"Meredith","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":370171,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014838,"text":"70014838 - 1987 - Analysis of steady-state salt-water upconing with application at Truro well field, Cape Cod, Massachusetts","interactions":[],"lastModifiedDate":"2024-03-20T22:41:42.557766","indexId":"70014838","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":"Analysis of steady-state salt-water upconing with application at Truro well field, Cape Cod, Massachusetts","docAbstract":"<div class=\"abstract-group \"><div class=\"article-section__content en main\"><p>Salt-water upconing describes the phenomenon where salt water is transported vertically upward under a well in response to pumpage in a fresh-water aquifer underlain by salt water. Sharp interface methods have been used successfully to describe the physics of upconing. A finite-element model is developed to simulate a sharp interface for determination of the steady-state position of the interface and maximum permissible well discharges. The model developed is compared to previous published electric-analog model results of Bennett and others (1968). Both methods are applied to a test case at Truro, Massachusetts, where maximum permissible discharges are determined by the finite-element model to range from 0.47 to 1.05 cubic feet per second for the Test Site No. 4 location.</p></div></div>","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1987.tb02876.x","issn":"0017467X","usgsCitation":"Reilly, T.E., Frimpter, M., LeBlanc, D., and Goodman, A., 1987, Analysis of steady-state salt-water upconing with application at Truro well field, Cape Cod, Massachusetts: Groundwater, v. 25, no. 2, p. 194-206, https://doi.org/10.1111/j.1745-6584.1987.tb02876.x.","productDescription":"13 p.","startPage":"194","endPage":"206","numberOfPages":"13","costCenters":[],"links":[{"id":225533,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-03-21","publicationStatus":"PW","scienceBaseUri":"5059eb32e4b0c8380cd48c9f","contributors":{"authors":[{"text":"Reilly, T. E.","contributorId":79460,"corporation":false,"usgs":true,"family":"Reilly","given":"T.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":369410,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Frimpter, M. H.","contributorId":34127,"corporation":false,"usgs":true,"family":"Frimpter","given":"M. H.","affiliations":[],"preferred":false,"id":369408,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"LeBlanc, D.R.","contributorId":87141,"corporation":false,"usgs":true,"family":"LeBlanc","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":369411,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Goodman, A.S.","contributorId":37901,"corporation":false,"usgs":true,"family":"Goodman","given":"A.S.","email":"","affiliations":[],"preferred":false,"id":369409,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70014852,"text":"70014852 - 1987 - Hydrogeological concepts in the United States: a historical perspective.","interactions":[],"lastModifiedDate":"2013-01-17T20:38:15","indexId":"70014852","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1582,"text":"Episodes","active":true,"publicationSubtype":{"id":10}},"title":"Hydrogeological concepts in the United States: a historical perspective.","docAbstract":"Reviews the development of hydrogeological concepts in the USA from 1879 to 1987, from early qualitative reconnaissance investigations to modern qualitative and multi-disciplinary studies involving predictive analytical techniques and a consideration of management practices. The authors present a sampling of historical milestone papers in US hydrology in the form of an annotated bibliography.-Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Episodes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"07053797","usgsCitation":"Moore, J., and Hanshaw, B., 1987, Hydrogeological concepts in the United States: a historical perspective.: Episodes, v. 10, no. 4, p. 315-321.","startPage":"315","endPage":"321","numberOfPages":"7","costCenters":[],"links":[{"id":225665,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":265831,"type":{"id":11,"text":"Document"},"url":"https://www.episodes.co.in/www/backissues/104/ARTICLES--315.pdf"}],"volume":"10","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a340ae4b0c8380cd5f468","contributors":{"authors":[{"text":"Moore, J.E.","contributorId":34927,"corporation":false,"usgs":true,"family":"Moore","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":369450,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hanshaw, B.B.","contributorId":25928,"corporation":false,"usgs":true,"family":"Hanshaw","given":"B.B.","email":"","affiliations":[],"preferred":false,"id":369449,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70009896,"text":"70009896 - 1987 - Provenance studies by fission-track dating of zircon-etching and counting procedures","interactions":[],"lastModifiedDate":"2013-03-24T14:13:02","indexId":"70009896","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2067,"text":"International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements","active":true,"publicationSubtype":{"id":10}},"title":"Provenance studies by fission-track dating of zircon-etching and counting procedures","docAbstract":"In sedimentary rocks that have not been heated to high enough temperatures to anneal fission tracks in zircon (greater than ≈ 160°C), fission-track ages of individual detrital zircon grains provide valuable information about the source rocks eroded to form the sediments. The success of such studies depends, however, on the degree to which the ages determined from the detrital suite accurately portray the range of grain ages that are present in the suite. This in turn depends to a large extent on using counting and, in particular, etching procedures that permit proper sampling of grains with a wide range of age and uranium concentrations.\n\nResults are reported here of an experimental study of a ‘detrital’ zircon suite manufactured from several zircon populations of known age. This study suggests that multiple etches are required when a complete spectrum of ages in a zircon suite is desired.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/1359-0189(87)90022-7","issn":"13590189","usgsCitation":"Naeser, N.D., Zeitler, P., Naeser, C.W., and Cerveny, P., 1987, Provenance studies by fission-track dating of zircon-etching and counting procedures: International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements, v. 13, no. 2-3, p. 121-126, https://doi.org/10.1016/1359-0189(87)90022-7.","startPage":"121","endPage":"126","numberOfPages":"6","costCenters":[],"links":[{"id":269914,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/1359-0189(87)90022-7"},{"id":219578,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8fa5e4b0c8380cd7f89f","contributors":{"authors":[{"text":"Naeser, N. D.","contributorId":74510,"corporation":false,"usgs":true,"family":"Naeser","given":"N.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":357403,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zeitler, P.K.","contributorId":49513,"corporation":false,"usgs":true,"family":"Zeitler","given":"P.K.","email":"","affiliations":[],"preferred":false,"id":357402,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Naeser, C. W.","contributorId":17582,"corporation":false,"usgs":true,"family":"Naeser","given":"C.","middleInitial":"W.","affiliations":[],"preferred":false,"id":357400,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cerveny, P.F.","contributorId":35068,"corporation":false,"usgs":true,"family":"Cerveny","given":"P.F.","email":"","affiliations":[],"preferred":false,"id":357401,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70014761,"text":"70014761 - 1987 - Volcanism and massive sulfide formation at a sedimented spreading center, Escanaba Trough, Gorda Ridge, northeast Pacific","interactions":[],"lastModifiedDate":"2024-02-14T01:19:09.740631","indexId":"70014761","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Volcanism and massive sulfide formation at a sedimented spreading center, Escanaba Trough, Gorda Ridge, northeast Pacific","docAbstract":"<div class=\"\"><div class=\"article-section__content en main\"><p>Seismic-reflection profiles over the sediment-filled Escanaba Trough at the southern Gorda Ridge reveal a series of volcanic centers that pierce the sediment. The volcanic edifices are 3 to 6 km in diameter and are spaced at 15 to 20 km intervals along the axis of the trough. The volcanic intrusions have uplifted the sediment as much as 100 m, and in places fresh basaltic flows are exposed at the sea floor. Unoxidized pyrrhotite-rich massive-sulfide samples were obtained from the flanks of one of these volcanic centers. The composition and form of the sulfide samples suggest significant interaction between hydrothermal fluids and sediment at depth, and deposition of sulfide within the sediment pile.</p></div></div>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/GL014i007p00769","issn":"00948276","usgsCitation":"Morton, J.L., Holmes, M., and Koski, R., 1987, Volcanism and massive sulfide formation at a sedimented spreading center, Escanaba Trough, Gorda Ridge, northeast Pacific: Geophysical Research Letters, v. 14, no. 7, p. 769-772, https://doi.org/10.1029/GL014i007p00769.","productDescription":"4 p.","startPage":"769","endPage":"772","numberOfPages":"4","costCenters":[],"links":[{"id":225399,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"7","noUsgsAuthors":false,"publicationDate":"2012-12-07","publicationStatus":"PW","scienceBaseUri":"505bc31ee4b08c986b32af7c","contributors":{"authors":[{"text":"Morton, J. L.","contributorId":56196,"corporation":false,"usgs":true,"family":"Morton","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":369224,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Holmes, M.L.","contributorId":89528,"corporation":false,"usgs":true,"family":"Holmes","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":369225,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Koski, R.A.","contributorId":16006,"corporation":false,"usgs":true,"family":"Koski","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":369223,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014684,"text":"70014684 - 1987 - ESTIMATING LOW-FLOW FREQUENCIES OF UNGAGED STREAMS IN NEW ENGLAND.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:30","indexId":"70014684","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"ESTIMATING LOW-FLOW FREQUENCIES OF UNGAGED STREAMS IN NEW ENGLAND.","docAbstract":"Equations to estimate low flows were developed using multiple-regression analysis with a sample of 48 river basins, which were selected from the U. S. Geological Survey's network of gaged river basins in Massachusetts, New Hampshire, Rhode Island, Vermont, and southwestern Maine. Low-flow characteristics are represented by the 7Q2 and 7Q10 (the annual minimum 7-day mean low flow at the 2- and 10-year recurrence intervals). These statistics for each of the 48 basins were determined from a low-flow frequency analysis of streamflow records for 1942-71, or from a graphical or mathematical relationship if the record did not cover this 30-year period. Estimators for the mean and variance of the 7-day low flows at the index and short-term sites were used for two stations where discharge measurements of base flow were available and for two sites where the graphical technique was unsatisfactory.","conferenceTitle":"Engineering Hydrology, Proceedings of the Symposium. Held Jointly with the ASCE National Conference.","conferenceLocation":"Williamsburg, VA, USA","language":"English","publisher":"ASCE","publisherLocation":"New York, NY, USA","isbn":"0872626113","usgsCitation":"Wandle, S.W., 1987, ESTIMATING LOW-FLOW FREQUENCIES OF UNGAGED STREAMS IN NEW ENGLAND., Engineering Hydrology, Proceedings of the Symposium. Held Jointly with the ASCE National Conference., Williamsburg, VA, USA.","startPage":"538","costCenters":[],"links":[{"id":226237,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0468e4b0c8380cd50974","contributors":{"authors":[{"text":"Wandle, S. William Jr.","contributorId":99562,"corporation":false,"usgs":true,"family":"Wandle","given":"S.","suffix":"Jr.","email":"","middleInitial":"William","affiliations":[],"preferred":false,"id":368992,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015223,"text":"70015223 - 1987 - Lake-level variation in the Lahontan basin for the past 50,000 years","interactions":[],"lastModifiedDate":"2013-01-26T07:17:36","indexId":"70015223","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Lake-level variation in the Lahontan basin for the past 50,000 years","docAbstract":"Selected radiocarbon data on surficial materials from the Lahontan basin, Nevada and California, provide a chronology of lake-level variation for the past 50,000 yr. A moderate-sized lake connected three western Lahontan subbasins (the Smoke Creek-Black Rock Desert subbasin, the Pyramid Lake subbasin, and the Winnemucca Dry Lake subbasin) from about 45,000 to 16,500 yr B.P. Between 50,000 and 45,000 yr B.P., Walker Lake rose to its sill level in Adrian Valley and spilled to the Carson Desert subbasin. By 20,000 yr B.P., lake level in the western Lahontan subbasins had risen to about 1265 m above sea level, where it remained for 3500 yr. By 16,000 yr B.P., lake level in the western Lahontan subbasins had fallen to 1240 m. This recession appears synchronous with a desiccation of Walker Lake; however, whether the Walker Lake desiccation resulted from climate change or from diversion of the Walker River is not known. From about 15,000 to 13,500 yr B.P., lake level rapidly rose, so that Lake Lahontan was a single body of water by 14,000 yr B.P. The lake appears to have reached a maximum highstand altitude of 1330 m by 13,500 yr B.P., a condition that persisted until about 12,500 yr B.P., at which time lake level fell ???100 m. No data exist that indicate the level of lakes in the various subbasins between 12,000 and 10,000 yr B.P. During the Holocene, the Lahontan basin was the site of shallow lakes, with many subbasins being the site of one or more periods of desiccation. The shape of the lake-level curve for the three western subbasins indicates that past changes in the hydrologic balance (and hence climate) of the Lahontan basin were large in magnitude and took place in a rapid step-like manner. The rapid changes in lake level are hypothesized to have resulted from changes in the mean position of the jet stream, as it was forced north or south by the changing size and shape of the continental ice sheet. ?? 1987.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/0033-5894(87)90034-2","issn":"00335894","usgsCitation":"Benson, L.V., and Thompson, R., 1987, Lake-level variation in the Lahontan basin for the past 50,000 years: Quaternary Research, v. 28, no. 1, p. 69-85, https://doi.org/10.1016/0033-5894(87)90034-2.","startPage":"69","endPage":"85","numberOfPages":"17","costCenters":[],"links":[{"id":266532,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0033-5894(87)90034-2"},{"id":223974,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a4173e4b0c8380cd65537","contributors":{"authors":[{"text":"Benson, L. V.","contributorId":50159,"corporation":false,"usgs":true,"family":"Benson","given":"L.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":370365,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thompson, R.S.","contributorId":106516,"corporation":false,"usgs":true,"family":"Thompson","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":370366,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015219,"text":"70015219 - 1987 - LAGRANGIAN MODELING OF A SUSPENDED-SEDIMENT PULSE.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:55","indexId":"70015219","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"LAGRANGIAN MODELING OF A SUSPENDED-SEDIMENT PULSE.","docAbstract":"The one-dimensional Lagrangian Transport Model (LTM) has been applied in a quasi two-dimensional manner to simulate the transport of a slug injection of microbeads in steady experimental flows. A stationary bed segment was positioned below each parcel location to simulate temporary storage of beads on the bottom of the flume. Only one degree of freedom was available for all three bead simulations. The results show the versatility of the LTM and the ability of the LTM to accurately simulate transport of fine suspended sediment.","conferenceTitle":"Hydraulic Engineering, Proceedings of the 1987 National Conference.","conferenceLocation":"Williamsburg, VA, USA","language":"English","publisher":"ASCE","publisherLocation":"New York, NY, USA","isbn":"0872626105","usgsCitation":"Schoellhamer, D., 1987, LAGRANGIAN MODELING OF A SUSPENDED-SEDIMENT PULSE., Hydraulic Engineering, Proceedings of the 1987 National Conference., Williamsburg, VA, USA, p. 1040-1045.","startPage":"1040","endPage":"1045","numberOfPages":"6","costCenters":[],"links":[{"id":223921,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a40d6e4b0c8380cd650a3","contributors":{"authors":[{"text":"Schoellhamer, David H. 0000-0001-9488-7340 dschoell@usgs.gov","orcid":"https://orcid.org/0000-0001-9488-7340","contributorId":631,"corporation":false,"usgs":true,"family":"Schoellhamer","given":"David H.","email":"dschoell@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":370355,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014768,"text":"70014768 - 1987 - Electrically heated quartz atomization cell for hydride generation-atomic absorption spectrophotometry","interactions":[],"lastModifiedDate":"2023-03-09T17:56:20.676861","indexId":"70014768","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":"Electrically heated quartz atomization cell for hydride generation-atomic absorption spectrophotometry","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"ACS Publication","doi":"10.1021/ac00141a035","usgsCitation":"Hatfield, D.B., 1987, Electrically heated quartz atomization cell for hydride generation-atomic absorption spectrophotometry: Analytical Chemistry, v. 59, no. 14, p. 1887-1888, https://doi.org/10.1021/ac00141a035.","productDescription":"2 p.","startPage":"1887","endPage":"1888","numberOfPages":"2","costCenters":[],"links":[{"id":225467,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"59","issue":"14","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a089de4b0c8380cd51bb5","contributors":{"authors":[{"text":"Hatfield, D. B.","contributorId":33329,"corporation":false,"usgs":true,"family":"Hatfield","given":"D.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":369242,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1007730,"text":"1007730 - 1987 - Distribution and stability of grasslands in the Los Angeles Basin","interactions":[],"lastModifiedDate":"2012-02-02T00:04:19","indexId":"1007730","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1136,"text":"Bulletin of the Southern California Academy of Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Distribution and stability of grasslands in the Los Angeles Basin","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Southern California Academy of Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Fruedenberger, D., Fish, B., and Keeley, J., 1987, Distribution and stability of grasslands in the Los Angeles Basin: Bulletin of the Southern California Academy of Sciences, v. 86, p. 13-26.","productDescription":"p. 13-26","startPage":"13","endPage":"26","numberOfPages":"14","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":129826,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"86","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a80e4b07f02db6495e8","contributors":{"authors":[{"text":"Fruedenberger, D.O.","contributorId":31706,"corporation":false,"usgs":true,"family":"Fruedenberger","given":"D.O.","email":"","affiliations":[],"preferred":false,"id":315922,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fish, B.E.","contributorId":30179,"corporation":false,"usgs":true,"family":"Fish","given":"B.E.","email":"","affiliations":[],"preferred":false,"id":315921,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keeley, Jon E. 0000-0002-4564-6521","orcid":"https://orcid.org/0000-0002-4564-6521","contributorId":69082,"corporation":false,"usgs":true,"family":"Keeley","given":"Jon E.","affiliations":[],"preferred":false,"id":315923,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015277,"text":"70015277 - 1987 - Radiocarbon and cation-radio ages for rock varnish on Tioga and Tahoe marainal boulders of Pine Creek, eastern Sierra Nevada, California, and their paleoclimatic implications","interactions":[],"lastModifiedDate":"2013-01-26T07:18:30","indexId":"70015277","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Radiocarbon and cation-radio ages for rock varnish on Tioga and Tahoe marainal boulders of Pine Creek, eastern Sierra Nevada, California, and their paleoclimatic implications","docAbstract":"Accelerator mass spectrometry 14C analyses of organic matter extracted from rock varnishes on morainal boulders yield limiting minimum ages for three crests of the Tioga glaciation. At Pine Creek in the eastern Sierra Nevada, varnish started to form on boulders of the outermost Tioga moraine before 19,000 yr B.P., and varnish originated on the innermost Tioga moraine before 13,200 yr B.P. Comparisons with lake-level, paleohydrological, paleoecological, colluvial, and rock varnish micromorphological data indicate that central-eastern California and western Nevada experienced a moisture-effective period during the late Pleistocene but after the Tioga maximum, and perhaps as Tioga glaciers receded from the mouth of Pine Creek canyon. Varnishes on Tahoeage morainal boulders at Pine Creek have cation-ratio ages of about 143,000-156,000 yr B.P., suggesting that the Tahoe glaciation should not be correlated with oxygen-isotope stage 4 in the early Wisconsin, but rather with stage 6. Varnishes on morainal boulders of an older glaciation at Pine Creek are dated by cation ratio at about 182,000-187,000 yr B.P. ?? 1987.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/0033-5894(87)90031-7","issn":"00335894","usgsCitation":"Dorn, R., Turrin, B.D., Jull, A., Linick, T., and Donahue, D., 1987, Radiocarbon and cation-radio ages for rock varnish on Tioga and Tahoe marainal boulders of Pine Creek, eastern Sierra Nevada, California, and their paleoclimatic implications: Quaternary Research, v. 28, no. 1, p. 36-49, https://doi.org/10.1016/0033-5894(87)90031-7.","startPage":"36","endPage":"49","numberOfPages":"14","costCenters":[],"links":[{"id":266533,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0033-5894(87)90031-7"},{"id":223975,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a93d3e4b0c8380cd81056","contributors":{"authors":[{"text":"Dorn, R.I.","contributorId":61172,"corporation":false,"usgs":true,"family":"Dorn","given":"R.I.","email":"","affiliations":[],"preferred":false,"id":370526,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Turrin, B. D.","contributorId":32548,"corporation":false,"usgs":true,"family":"Turrin","given":"B.","middleInitial":"D.","affiliations":[],"preferred":false,"id":370525,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jull, A.J.T.","contributorId":79625,"corporation":false,"usgs":true,"family":"Jull","given":"A.J.T.","email":"","affiliations":[],"preferred":false,"id":370527,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Linick, T.W.","contributorId":22095,"corporation":false,"usgs":true,"family":"Linick","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":370523,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Donahue, D.J.","contributorId":22909,"corporation":false,"usgs":true,"family":"Donahue","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":370524,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70015268,"text":"70015268 - 1987 - Unsaturated flow in a centrifugal field: Measurement of hydraulic conductivity and testing of Darcy's Law","interactions":[],"lastModifiedDate":"2020-01-18T10:33:21","indexId":"70015268","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":"Unsaturated flow in a centrifugal field: Measurement of hydraulic conductivity and testing of Darcy's Law","docAbstract":"<p>A method has been developed to establish steady state flow of water in an unsaturated soil sample spinning in a centrifuge. Theoretical analysis predicts moisture conditions in the sample that depend strongly on soil type and certain operating parameters. For Oakley sand, measurements of flux, water content, and matric potential during and after centrifugation verify that steady state flow can be achieved. Experiments have confirmed the theoretical prediction of a nearly uniform moisture distribution for this medium and have demonstrated that the flow can be effectively one-dimensional. The method was used for steady state measurements of hydraulic conductivity <i>K</i> for relatively dry soil, giving values as low as 7.6 × 10<sup>−11</sup> m/s with data obtained in a few hours. Darcy's law was tested by measuring <i>K</i> for different centrifugal driving forces but with the same water content. For the sand at a bulk density of 1.82 Mg/m<sup>3</sup> and 27% saturation, results were consistent with Darcy's law for <i>K</i> equal to 5.22 × 10<sup>−10</sup> m/s and forces ranging from 216 to 1650 times normal gravity.</p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR023i001p00124","usgsCitation":"Nimmo, J.R., Rubin, J., and Hammermeister, D., 1987, Unsaturated flow in a centrifugal field: Measurement of hydraulic conductivity and testing of Darcy's Law: Water Resources Research, v. 23, no. 1, p. 124-134, https://doi.org/10.1029/WR023i001p00124.","productDescription":"11 p.","startPage":"124","endPage":"134","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":223865,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"1","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505bbb3fe4b08c986b3285ba","contributors":{"authors":[{"text":"Nimmo, John R. 0000-0001-8191-1727 jrnimmo@usgs.gov","orcid":"https://orcid.org/0000-0001-8191-1727","contributorId":757,"corporation":false,"usgs":true,"family":"Nimmo","given":"John","email":"jrnimmo@usgs.gov","middleInitial":"R.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":779738,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rubin, J.","contributorId":26433,"corporation":false,"usgs":true,"family":"Rubin","given":"J.","email":"","affiliations":[],"preferred":false,"id":370500,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hammermeister, D.P.","contributorId":27066,"corporation":false,"usgs":true,"family":"Hammermeister","given":"D.P.","affiliations":[],"preferred":false,"id":370501,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}