{"pageNumber":"6540","pageRowStart":"163475","pageSize":"25","recordCount":184904,"records":[{"id":1000305,"text":"1000305 - 1968 - An electric beam trawl for the capture of larval lampreys","interactions":[],"lastModifiedDate":"2013-02-04T16:05:15","indexId":"1000305","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"An electric beam trawl for the capture of larval lampreys","docAbstract":"The chemicals used to control the sea lamprey, <i>Petromyzon marinus</i>, in the Great Lakes have drastically reduced populations of larval lampreys in tributary streams.  These larvicides are too costly and difficult to apply, however, in inland lakes, estuaries, and bays.  Populations of sea lampreys in these areas constitute a threat to the refinement of the control.  The gear available to locate, ample, and evaluate larval populations in deep water are inefficient.  Electric shockers, satisfactory for collecting ammocoetes in streams, are limited to shallow water.  The use of mechanical devices such as the Petersen dredge, anchor dredge, and the orange-peel dredge is time consuming, inefficient, and relatively ineffective in providing reliable quantitative evaluation of population size and composition over large areas of bottom.  A device was required to sample adequately many areas in a short period of time, regardless of the depth of water.  Mobility also was essential to permit operation of the unit in the various Great Lakes and in inland waters.  An electrified beam trawl has been developed that most nearly meets these requirements.  It has been used successfully to collect larvae of the sea lamprey, American brook lamprey (<i>Lampetra lamottei</i>), northern brook lamprey (<i>Ichthyomyzon fossor</i>), and silver lamprey (<i>I. unicuspis</i>).  Effectiveness of the trawl did not appear to differ with species.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Taylor & Francis","publisherLocation":"London, UK","doi":"10.1577/1548-8659(1968)97[289:AEBTFT]2.0.CO;2","collaboration":"Out-of-print","usgsCitation":"McLain, A., and Dahl, F.H., 1968, An electric beam trawl for the capture of larval lampreys: Transactions of the American Fisheries Society, v. 97, no. 3, p. 289-293, https://doi.org/10.1577/1548-8659(1968)97[289:AEBTFT]2.0.CO;2.","productDescription":"5 p.","startPage":"289","endPage":"293","numberOfPages":"5","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":266966,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/1548-8659(1968)97[289:AEBTFT]2.0.CO;2"},{"id":131663,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"97","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db684b78","contributors":{"authors":[{"text":"McLain, Alberton","contributorId":81451,"corporation":false,"usgs":true,"family":"McLain","given":"Alberton","affiliations":[],"preferred":false,"id":308366,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dahl, Frederick H.","contributorId":90258,"corporation":false,"usgs":true,"family":"Dahl","given":"Frederick","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":308367,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1000172,"text":"1000172 - 1968 - Two hermaphroditic alewives from Lake Michigan","interactions":[],"lastModifiedDate":"2023-12-06T22:29:45.638061","indexId":"1000172","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1337,"text":"Copeia","active":true,"publicationSubtype":{"id":10}},"title":"Two hermaphroditic alewives from Lake Michigan","docAbstract":"Hermaphroditism has been reported frequently among many of the Clupeidae, but only one account of hermaphroditism has been published for the alewife, Alosa pseudoharengus.  Rothschild discovered four hermaphroditic alewives among 444 fish he examined from Cayuga Lake, New York.  We recently collected two hermaphroditic alewives from Lake Michigan.  Both fish were normal in external appearance but were easily identified as hermaphrodites by gross examination of their gonads.  The first hermaphrodite (177 mm T.L.) was discovered among several hundred normal adult alewives captured in early July 1965 in the Kalamazoo River about one mile upstream from Lake Michigan.  The second hermaphroditic alewife (152 mm T.L.) was obtained from a sample of 160 adult alewives captured in Lake Michigan near the mouth of the Kalamazoo River in mid-April 1966.","language":"English","usgsCitation":"Edsall, T.A., and Saxon, M.I., 1968, Two hermaphroditic alewives from Lake Michigan: Copeia, v. 1968, no. 2, p. 406-407.","productDescription":"2 p.","startPage":"406","endPage":"407","numberOfPages":"2","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133220,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1968","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a48e4b07f02db623a5f","contributors":{"authors":[{"text":"Edsall, Thomas A.","contributorId":84302,"corporation":false,"usgs":true,"family":"Edsall","given":"Thomas","email":"","middleInitial":"A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":false,"id":308185,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Saxon, Margaret I.","contributorId":57027,"corporation":false,"usgs":true,"family":"Saxon","given":"Margaret","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":308184,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70010826,"text":"70010826 - 1968 - Chemical potential of water from measurements of optic axial angle of zeolites","interactions":[],"lastModifiedDate":"2020-11-29T17:02:57.500714","indexId":"70010826","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Chemical potential of water from measurements of optic axial angle of zeolites","docAbstract":"<div class=\"panel-pane pane-highwire-panel-tabs-container article__body\"><div class=\"pane-content\"><div id=\"panels-ajax-tab-container-highwire_article_tabs\" class=\"panels-ajax-tab-container\" data-panels-ajax-tab-preloaded=\"jnl_sci_tab_art\"><div class=\"panels-ajax-tab-wrap-jnl_sci_tab_art\"><div class=\"panel-display panel-1col clearfix\"><div class=\"panel-panel panel-col\"><div><div class=\"panel-pane pane-highwire-markup\"><div class=\"pane-content\"><div class=\"highwire-markup\"><div id=\"content-block-markup\" data-highwire-cite-ref-tooltip-instance=\"highwire_reflinks_tooltip\" data-highwire-glossary-tooltip-instance=\"highwire_reflinks_tooltip\"><div class=\"article abstract-view \"><div id=\"abstract-1\" class=\"section abstract\"><p id=\"p-1\">Values of the uncorrected optic axial angle (2H<sub>α</sub>) of a crystal of the calcium zeolite stellerite (CaAl<sub>2</sub>Si<sub>7</sub>O<sub>l8</sub><span>&nbsp;</span>· 7H<sub>2</sub>0) immersed in calcium chloride solutions of known activity of water (a<sub>w</sub>) are directly proportional to log a<sub>w</sub>. A general relationship between the chemical potential of water in the crystal and the optic axial angle is obeyed.</p></div></div><span id=\"related-urls\"></span></div></div></div></div></div></div></div></div></div></div></div>","language":"English","publisher":"AAAS","doi":"10.1126/science.162.3858.1145","issn":"00368075","usgsCitation":"Donald, E.G., and Christ, C., 1968, Chemical potential of water from measurements of optic axial angle of zeolites: Science, v. 162, no. 3858, p. 1145-1146, https://doi.org/10.1126/science.162.3858.1145.","productDescription":"2 p.","startPage":"1145","endPage":"1146","costCenters":[],"links":[{"id":218753,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"162","issue":"3858","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f582e4b0c8380cd4c284","contributors":{"authors":[{"text":"Donald, Eberlein G.","contributorId":104212,"corporation":false,"usgs":true,"family":"Donald","given":"Eberlein","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":359735,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christ, C. L.","contributorId":53906,"corporation":false,"usgs":true,"family":"Christ","given":"C. L.","affiliations":[],"preferred":false,"id":359734,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":81365,"text":"81365 - 1968 - Water quality of streams tributary to Lakes Superior and Michigan","interactions":[],"lastModifiedDate":"2012-02-02T00:13:59","indexId":"81365","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":84,"text":"Special Scientific Report - Fisheries","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"559","title":"Water quality of streams tributary to Lakes Superior and Michigan","docAbstract":"Water quality of streams tributary to Lakes Superior and Michigan was analyzed for 142 stations on 99 streams tributary to Lake Superior and 83 stations on 56 streams tributary to Lake Michigan during 1962-65. Concentrations of aluminum, copper, and iron were not affected greatly by flow or season. Magnesium, calcium, chlorides, total alkalinity, total hardness, and conductivity varied with the flow, temperature, and season; the lowest values were during the spring runoff and heavy rains, and the highest were during low water in late summer and the colder periods of winter. Concentrations of nitrate, silica, and sulfates were lowest in the spring and summer. Concentrations of tanninlike and ligninlike compounds were highest during the spring runoff and other high-water periods, and were lowest during freezeup when surface runoff was minimal. The pH values were highest from June to September and lowest during the spring runoff. Phenolphthalein alkalinity was detected primarily in the summer and coincided occasionally with low flows just before the spring thaw. Total hardness usually was lower in streams tributary to Lake Superior than in streams tributary to Lake Michigan. The total hardness was higher in the streams in Wisconsin than in the streams in Michigan along the west shore of Lake Michigan. It was lowest in the northernmost streams. The water quality of the streams in an area was related to the geological characteristics of the land.","language":"English","publisher":"U.S. Fish and Wildlife Service","collaboration":"Out-of-print","usgsCitation":"Zimmerman, J.W., 1968, Water quality of streams tributary to Lakes Superior and Michigan: Special Scientific Report - Fisheries 559, 41 p.","productDescription":"41 p.","startPage":"0","endPage":"41","numberOfPages":"41","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":101757,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://hdl.handle.net/2027/coo.31924071938512?urlappend=%3Bseq=735"},{"id":192815,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a07e4b07f02db5f9964","contributors":{"authors":[{"text":"Zimmerman, Jerome W.","contributorId":18073,"corporation":false,"usgs":true,"family":"Zimmerman","given":"Jerome","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":295294,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1001556,"text":"1001556 - 1968 - White-faced ibis in McIntosh County, North Dakota","interactions":[],"lastModifiedDate":"2017-10-11T11:24:00","indexId":"1001556","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3111,"text":"Prairie Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"White-faced ibis in McIntosh County, North Dakota","docAbstract":"Abstract has not been submitted","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Prairie Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Duebbert, H., 1968, White-faced ibis in McIntosh County, North Dakota: Prairie Naturalist, v. 1, no. 1, p. 14-14.","productDescription":"1 p.","startPage":"14","endPage":"14","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":130504,"rank":0,"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        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -99.503173828125,\n              45.9511496866914\n            ],\n            [\n              -98.3331298828125,\n              45.9511496866914\n            ],\n            [\n              -98.3331298828125,\n              46.31658418182218\n            ],\n            [\n              -99.503173828125,\n              46.31658418182218\n            ],\n            [\n              -99.503173828125,\n              45.9511496866914\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"1","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49dde4b07f02db5e1d90","contributors":{"authors":[{"text":"Duebbert, Harold F.","contributorId":11544,"corporation":false,"usgs":true,"family":"Duebbert","given":"Harold F.","affiliations":[],"preferred":false,"id":311246,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1016535,"text":"1016535 - 1968 - [Book review] Waterfowl--their biology and natural history, by Paul A. Johnsgard","interactions":[],"lastModifiedDate":"2018-01-04T12:20:57","indexId":"1016535","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":919,"text":"Atlantic Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"[Book review] Waterfowl--their biology and natural history, by Paul A. Johnsgard","docAbstract":"Review of: Waterfowl. Their Biology and Natural History. Johnsgard, Paul A. University of Nebraska Press, Lincoln and London 1968. XVIII+138 pages.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Atlantic Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Audubon Naturalist Society of the Central Atlantic States","publisherLocation":"Chevy Chase, MD","usgsCitation":"Nelson, H., 1968, [Book review] Waterfowl--their biology and natural history, by Paul A. Johnsgard: Atlantic Naturalist, v. 23, no. 4, p. 230-232.","productDescription":"3 p.","startPage":"230","endPage":"232","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":131533,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fee4b07f02db5f7356","contributors":{"authors":[{"text":"Nelson, H.K.","contributorId":21489,"corporation":false,"usgs":true,"family":"Nelson","given":"H.K.","email":"","affiliations":[],"preferred":false,"id":324353,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70194905,"text":"70194905 - 1968 - Geology and hydrology of a proposed site for burial of solid radioactive waste southeast of Beatty, Nye County, Nevada","interactions":[],"lastModifiedDate":"2018-01-29T13:23:38","indexId":"70194905","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"seriesNumber":"WASH-1143","title":"Geology and hydrology of a proposed site for burial of solid radioactive waste southeast of Beatty, Nye County, Nevada","docAbstract":"<p>No abstract available.<br></p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Land burial of solid radioactive wastes - Study of commercial operations and facilities (Atomic Energy Commission, Report WASH-1143)","largerWorkSubtype":{"id":1,"text":"Federal Government Series"},"language":"English","publisher":"U.S. Department of Commerce","usgsCitation":"Clebsch, A., 1968, Geology and hydrology of a proposed site for burial of solid radioactive waste southeast of Beatty, Nye County, Nevada, 31 p.","productDescription":"31 p.","startPage":"70","endPage":"100","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"links":[{"id":350748,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","county":"Nye County","city":"Beatty","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a7040dae4b06e28e9cae50d","contributors":{"editors":[{"text":"Morton, R.J.","contributorId":68720,"corporation":false,"usgs":true,"family":"Morton","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":726075,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Clebsch, Alfred Jr.","contributorId":27886,"corporation":false,"usgs":true,"family":"Clebsch","given":"Alfred","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":726074,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":18466,"text":"ofr6834 - 1968 - A distinction between bedrock and unconsolidated deposits on 3-5u infrared imagery of the Yellowstone rhyolite plateau","interactions":[],"lastModifiedDate":"2024-11-13T16:18:43.679484","indexId":"ofr6834","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"68-34","title":"A distinction between bedrock and unconsolidated deposits on 3-5u infrared imagery of the Yellowstone rhyolite plateau","docAbstract":"<p>Infrared imagery covering most of Yellowstone National Park was obtained in August 1966, by H. R. B. Singer Company, using the Reconofax IV system in an aircraft flying at about 20,000 feet. This imagery has been examined in order to evaluate the geologic information it contains in relation to a current study of the Yellowstone rhyolite plateau. As most of the findings contained no new information about the capabilities of the system, they will be, reviewed here only very briefly. However, one particular aspect of the interpretation, a clear local distinction between bedrock and surficial deposits, seems to be of sufficient interest to be illustrated and noted specifically.</p><p>Because of the nature of the terrain and vegetation at Yellowstone, the parameters affecting the infrared sensor are mainly ones which are themselves only poor-resolution indicators of primary geologic features. Certain geologic features not directly related to the rhyolite plateau do show up fairly well but are not discussed here as they have been described in other reports based on this imagery (Smedes, 1968; Pierce, 1963; Keefer, in preparation).</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/ofr6834","usgsCitation":"Christiansen, R.L., 1968, A distinction between bedrock and unconsolidated deposits on 3-5u infrared imagery of the Yellowstone rhyolite plateau: U.S. Geological Survey Open-File Report 68-34, 5 p., https://doi.org/10.3133/ofr6834.","productDescription":"5 p.","costCenters":[],"links":[{"id":463013,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1968/0034/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":152223,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1968/0034/report-thumb.jpg"}],"country":"United States","otherGeospatial":"Yellowstone rhyolite plateau","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -111.2083773233386,\n              44.985687153096194\n            ],\n            [\n              -111.2083773233386,\n              44.04105318171932\n            ],\n            [\n              -109.76565012047247,\n              44.04105318171932\n            ],\n            [\n              -109.76565012047247,\n              44.985687153096194\n            ],\n            [\n              -111.2083773233386,\n              44.985687153096194\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"plainLanguageSummary":"<p><br data-mce-bogus=\"1\"></p>","publicationStatus":"PW","scienceBaseUri":"4f4e4b25e4b07f02db6aed4a","contributors":{"authors":[{"text":"Christiansen, Robert L. 0000-0002-8017-3918 rchris@usgs.gov","orcid":"https://orcid.org/0000-0002-8017-3918","contributorId":4412,"corporation":false,"usgs":true,"family":"Christiansen","given":"Robert","email":"rchris@usgs.gov","middleInitial":"L.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":179180,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":35399,"text":"b1251C - 1968 - Tertiary volcanic stratigraphy in the Powderhorn-Black Canyon region, Gunnison and Montrose Counties, Colorado","interactions":[],"lastModifiedDate":"2023-03-17T18:51:34.013306","indexId":"b1251C","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":306,"text":"Bulletin","code":"B","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1251","chapter":"C","title":"Tertiary volcanic stratigraphy in the Powderhorn-Black Canyon region, Gunnison and Montrose Counties, Colorado","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/b1251C","usgsCitation":"Olson, J.C., Hedlund, D.C., and Hansen, W.R., 1968, Tertiary volcanic stratigraphy in the Powderhorn-Black Canyon region, Gunnison and Montrose Counties, Colorado: U.S. Geological Survey Bulletin 1251, Report: iv, 29 p.; 1 Plate: 21.50 x 21.55 inches, https://doi.org/10.3133/b1251C.","productDescription":"Report: iv, 29 p.; 1 Plate: 21.50 x 21.55 inches","costCenters":[],"links":[{"id":109671,"rank":4,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_21330.htm","linkFileType":{"id":5,"text":"html"},"description":"21330"},{"id":63273,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/bul/1251c/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":63272,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/bul/1251c/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":165332,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/bul/1251c/report-thumb.jpg"}],"country":"United States","state":"Colorado","county":"Gunnison County, Montrose County","otherGeospatial":"Powderhorn-Black Canyon region","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -107.625,\n              38.5\n            ],\n            [\n              -107.625,\n              38.125\n            ],\n            [\n              -107,\n              38.125\n            ],\n            [\n              -107,\n              38.5\n            ],\n            [\n              -107.625,\n              38.5\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db684f84","contributors":{"authors":[{"text":"Olson, Jerry Chipman","contributorId":57869,"corporation":false,"usgs":true,"family":"Olson","given":"Jerry","email":"","middleInitial":"Chipman","affiliations":[],"preferred":false,"id":214567,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hedlund, David Carl","contributorId":53762,"corporation":false,"usgs":true,"family":"Hedlund","given":"David","email":"","middleInitial":"Carl","affiliations":[],"preferred":false,"id":214566,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hansen, Wallace R.","contributorId":90273,"corporation":false,"usgs":true,"family":"Hansen","given":"Wallace","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":214568,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1000349,"text":"1000349 - 1968 - Movements of adult lake trout in Lake Superior","interactions":[],"lastModifiedDate":"2016-02-18T13:49:34","indexId":"1000349","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Movements of adult lake trout in Lake Superior","docAbstract":"<p>Returns from mature lake trout (Salvelinus namaycush) tagged in western Lake Superior in 1959 and 1962-65 described here suggest that trout disperse widely from the spawning grounds after spawning and return in subsequent years. Although the data were not extensive, returns from lake trout tagged near Keweenaw Point in 1950 and off Marquette, Michigan, in 1952 suggested similar movement. Loftus stated that river-spawning lake trout of eastern Lake Superior returned annually to the same spawning streams. Movements of lake trout must be understood to manage and evaluate the rehabilitation of lake trout stocks in Lake Superior, especially when the trout move across interstate and international boundaries and are subject to different fishing regulations and fishing pressures.</p>","language":"English","publisher":"Wiley","doi":"10.1577/1548-8659(1968)97[481:MOALTI]2.0.CO;2","usgsCitation":"Rahrer, J.F., 1968, Movements of adult lake trout in Lake Superior: Transactions of the American Fisheries Society, v. 97, no. 4, p. 481-484, https://doi.org/10.1577/1548-8659(1968)97[481:MOALTI]2.0.CO;2.","productDescription":"4 p.","startPage":"481","endPage":"484","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":128662,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"97","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b482d","contributors":{"authors":[{"text":"Rahrer, Jerold F.","contributorId":76679,"corporation":false,"usgs":true,"family":"Rahrer","given":"Jerold","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":308436,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1003267,"text":"1003267 - 1968 - Turnover and urinary excretion of free and acetylated MS-222 rainbow trout, Salmo gairdneri","interactions":[],"lastModifiedDate":"2013-03-13T21:28:15","indexId":"1003267","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2543,"text":"Journal of the Fisheries Research Board of Canada","active":true,"publicationSubtype":{"id":10}},"title":"Turnover and urinary excretion of free and acetylated MS-222 rainbow trout, Salmo gairdneri","docAbstract":"Rainbow trout (Salmo gairdneri) anesthetized in 100 mg/liter of M.S. 222 at 12 C excreted the drug in free and acetylated forms via the urine during a 24-hr recovery period in freshwater. Of the M.S. 222 excreted, 77-96% was acetylated. Blood levels of free drug in anesthetized trout approximated 75% of the anesthetic concentration, but the amount of acetylated M.S. 222 was relatively insignificant. The blood and urine were cleared of the two fractions of M.S. 222 in 8 and 24 hr respectively. Low levels of aromatic amines of natural origin occurred in blood and urine and were subtracted from measurements of M.S. 222. Intraperitoneal injections of 10-100 mg/kg of M.S. 222 did not induce anesthesia; however, the 24-hr pattern of drug excretion was similar to that observed after anesthesia by immersion. Only 15-21 % of the injected dose was found in the urine, suggesting a second route of drug elimination.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the Fisheries Research Board of Canada","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1139/f68-003","usgsCitation":"Hunn, J.B., Schoettger, R., and Willford, W., 1968, Turnover and urinary excretion of free and acetylated MS-222 rainbow trout, Salmo gairdneri: Journal of the Fisheries Research Board of Canada, v. 25, no. 1, p. 25-31, https://doi.org/10.1139/f68-003.","productDescription":"pp. 25-31","startPage":"25","endPage":"31","numberOfPages":"7","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":269313,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/f68-003"},{"id":134256,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afee4b07f02db69765d","contributors":{"authors":[{"text":"Hunn, J. B.","contributorId":15133,"corporation":false,"usgs":true,"family":"Hunn","given":"J.","middleInitial":"B.","affiliations":[],"preferred":false,"id":313042,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schoettger, R.A.","contributorId":19519,"corporation":false,"usgs":true,"family":"Schoettger","given":"R.A.","affiliations":[],"preferred":false,"id":313043,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Willford, W. A.","contributorId":105256,"corporation":false,"usgs":true,"family":"Willford","given":"W. A.","affiliations":[],"preferred":false,"id":313044,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1000363,"text":"1000363 - 1968 - Comparative embryology of five species of lampreys of the upper Great Lakes","interactions":[],"lastModifiedDate":"2023-12-06T22:33:08.516264","indexId":"1000363","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1337,"text":"Copeia","active":true,"publicationSubtype":{"id":10}},"title":"Comparative embryology of five species of lampreys of the upper Great Lakes","docAbstract":"The four species of lampreys native to the upper Great Lakes (American brook lamprey, Lampetra lamotteni; chestnut lamprey, Ichthyomyzon castaneus; northern brook lamprey, I. fossor; and silver lamprey, I. unicuspis) were collected in various stages of their life cycle and maintained in the laboratory until sexually mature. Secondary sex characters of the four native species are compared. Several batches of eggs of each species were reared at 18.4A?C and their development was compared to that of the exotic sea lamprey, Petromyzon marinus. The temperature of 18.4A?C was previously determined to be optimum for development of the sea lamprey. The high percentage survival of many batches of eggs of native species to prolarvae indicated that 18.4A?C was near the optimum for them. Survival to the burrowing stage varied considerably among different batches of eggs from the same species; some batches failed to produce prolarvae. The staging characteristics used for the sea lamprey were applicable to the native species, except for the end point of the burrowing stage. Embryos of the native species in each stage of development appeared according to the time sequence established for the sea lamprey.","language":"English","publisher":"American Society of Ichthyologists and Herpetologists (ASIH)","doi":"10.2307/1442013","usgsCitation":"Smith, A.J., Howell, J.H., and Piavis, G.W., 1968, Comparative embryology of five species of lampreys of the upper Great Lakes: Copeia, v. 1968, no. 3, p. 461-469, https://doi.org/10.2307/1442013.","productDescription":"9 p.","startPage":"461","endPage":"469","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":132920,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1968","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b24e4b07f02db6ae506","contributors":{"authors":[{"text":"Smith, Allen J.","contributorId":69937,"corporation":false,"usgs":true,"family":"Smith","given":"Allen","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":308458,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howell, John H.","contributorId":39720,"corporation":false,"usgs":true,"family":"Howell","given":"John","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":308456,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Piavis, George W.","contributorId":63755,"corporation":false,"usgs":true,"family":"Piavis","given":"George","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":308457,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70011476,"text":"70011476 - 1968 - Dissociation constants of KSO<sub>4</sub><sup>-</sup>  from 10°-50°C","interactions":[],"lastModifiedDate":"2015-06-19T13:43:46","indexId":"70011476","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Dissociation constants of KSO<sub>4</sub><sup>-</sup>  from 10°-50°C","docAbstract":"<p><span>A cell without liquid junction was used to obtain dissociation constants for the reaction:&nbsp;</span><i>KSO</i><sub>4</sub><sup>&minus;</sup><span>&nbsp;=&nbsp;</span><i>K</i><sup>+</sup><span>&nbsp;+</span><i>SO</i><sub>4</sub><sup>2&minus;</sup><span>. At 10&deg;, 25&deg;, 38&deg; and 50&deg;C, values for K</span><sub>diss KSO<sub>4</sub></sub><sup>&minus;</sup><span>&nbsp;are, respectively, 0.19</span><sub>5</sub><span>, 0.14</span><sub>2</sub><span>, 0.11</span><sub>7</sub><span>, and 0.09</span><sub>5</sub><span>. At 25&deg;C,&nbsp;</span><span id=\"mmlsi1\" class=\"mathmlsrc\"><img class=\"imgLazyJSB inlineImage\" title=\"\" src=\"http://ars.els-cdn.com/content/image/1-s2.0-0016703768900665-si1.gif\" alt=\"\" width=\"37\" height=\"17\" data-inlimgeid=\"1-s2.0-0016703768900665-si1.gif\" data-loaded=\"true\" /></span><span>, and&nbsp;</span><span id=\"mmlsi2\" class=\"mathmlsrc\"><img class=\"imgLazyJSB inlineImage\" title=\"\" src=\"http://ars.els-cdn.com/content/image/1-s2.0-0016703768900665-si2.gif\" alt=\"\" width=\"42\" height=\"17\" data-inlimgeid=\"1-s2.0-0016703768900665-si2.gif\" data-loaded=\"true\" /></span><span>&nbsp;values for the KSO</span><sub>4</sub><sup>&minus;</sup><span>&nbsp;ion are &minus;245.96 and &minus;274.02 kcal mole</span><sup>&minus;1</sup><span>, and&nbsp;</span><i>S</i><span>&deg; is +42.3 cal mole</span><sup>&minus;1</sup><span>&nbsp;deg</span><sup>&minus;1</sup><span>.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(68)90066-5","issn":"00167037","usgsCitation":"Truesdell, A., and Hostetler, P.B., 1968, Dissociation constants of KSO<sub>4</sub><sup>-</sup>  from 10°-50°C: Geochimica et Cosmochimica Acta, v. 32, no. 9, p. 1019-1022, https://doi.org/10.1016/0016-7037(68)90066-5.","productDescription":"4 p.","startPage":"1019","endPage":"1022","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":220774,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a022ce4b0c8380cd4ff0d","contributors":{"authors":[{"text":"Truesdell, A.H.","contributorId":52566,"corporation":false,"usgs":false,"family":"Truesdell","given":"A.H.","email":"","affiliations":[{"id":6672,"text":"former: USGS Southwest Biological Science Center, Colorado Plateau Research Station, Flagstaff, AZ. Current address:  TN-SCORE, Univ of Tennessee, Knoxville, TN, e-mail: jennen@gmail.com","active":true,"usgs":false}],"preferred":false,"id":361202,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hostetler, P. B.","contributorId":107849,"corporation":false,"usgs":false,"family":"Hostetler","given":"P.","email":"","middleInitial":"B.","affiliations":[{"id":13719,"text":"Department of Geology, University of Missouri","active":true,"usgs":false}],"preferred":false,"id":361203,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70010831,"text":"70010831 - 1968 - Surface area of montmorillonite from the dynamic sorption of nitrogen and carbon dioxide","interactions":[],"lastModifiedDate":"2018-01-25T14:41:46","indexId":"70010831","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1245,"text":"Clays and Clay Minerals","onlineIssn":"1552-8367","printIssn":"0009-8604","active":true,"publicationSubtype":{"id":10}},"title":"Surface area of montmorillonite from the dynamic sorption of nitrogen and carbon dioxide","docAbstract":"<p>Surface area determinations were made on a montmorillonite with various cations emplaced on the exchangeable sites, utilizing nitrogen and carbon dioxide as adsorbates at 77<strong>°</strong>K and 195<strong>°</strong>K, respectively, in a dynamic system. From the fraction of a Mississippi montmorillonite less than about 1 μ&nbsp;in size, samples were prepared by replacing the original exchangeable cations with Li<sup>+</sup>, Na<sup>+</sup>, K<sup>+</sup>, Rb<sup>+</sup>, Cs<sup>+</sup>, Mg<sup>++</sup>, Ca<sup>++</sup>, Ba<sup>++</sup>, and NH<sub>4</sub><sup>+</sup>, forming a series of homoionic montmorillonite species.</p><p>Surface areas from 3-point B.E.T. plots (half-hour adsorption points), with nitrogen as the adsorbate, ranged from 61 m<sup>2</sup>/g for Li-montmorillonite to 138 m<sup>2</sup>/g for Cs-montmorillonite, thus reflecting a certain degree of nitrogen penetration between layers. Complete penetration should theoretically result in a surface area of over 300 m<sup>2</sup>/g for this clay with a nitrogen monolayer between each pair of platelets. The experimental data indicate that the extent of penetration is time-dependent and is also a function of the interlayer forces as governed by the size and charge of the replaceable cation. This finding negates the generally accepted concept that nitrogen at 77<strong>°</strong>K does not penetrate the layers and provides a measure only of the external surface of expandable clay minerals.</p><p>A further measure of the variation of interlayer forces is provided by the adsorption of carbon dioxide at 195<strong>°</strong>K. Surface area values ranged from 99 m<sup>2</sup>/g for Li-montmorillonite to 315 m<sup>2</sup>/g for Csmontmorillonite. Although the carbon dioxide molecule is larger than the nitrogen molecule, its greater penetration apparently is a result of its being kinetically more energetic (with a larger diffusion coefficient) at its higher adsorption temperature. Similar differences have been found with both adsorbates in the study of microporous substances, such as coal, where activated diffusion is of considerable significance.</p>","language":"English","publisher":"The Clay Minerals Society","doi":"10.1346/CCMN.1968.0160110","usgsCitation":"Thomas, J., and Bohor, B., 1968, Surface area of montmorillonite from the dynamic sorption of nitrogen and carbon dioxide: Clays and Clay Minerals, v. 16, no. 1, p. 83-91, https://doi.org/10.1346/CCMN.1968.0160110.","productDescription":"9 p.","startPage":"83","endPage":"91","costCenters":[],"links":[{"id":218898,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"1","noUsgsAuthors":false,"publicationDate":"2024-07-01","publicationStatus":"PW","scienceBaseUri":"505b9f94e4b08c986b31e6aa","contributors":{"authors":[{"text":"Thomas, Josephus Jr.","contributorId":11755,"corporation":false,"usgs":false,"family":"Thomas","given":"Josephus","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":359746,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bohor, Bruce F.","contributorId":104823,"corporation":false,"usgs":true,"family":"Bohor","given":"Bruce F.","affiliations":[],"preferred":false,"id":359747,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70010802,"text":"70010802 - 1968 - Tree leaf control on low flow water quality in a small Virginia stream","interactions":[],"lastModifiedDate":"2023-10-20T15:14:41.216714","indexId":"70010802","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Tree leaf control on low flow water quality in a small Virginia stream","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"American Chemical Society","doi":"10.1021/es60014a005","issn":"0013936X","usgsCitation":"Slack, K.V., and Feltz, H., 1968, Tree leaf control on low flow water quality in a small Virginia stream: Environmental Science & Technology, v. 2, no. 2, p. 126-131, https://doi.org/10.1021/es60014a005.","productDescription":"6 p.","startPage":"126","endPage":"131","costCenters":[],"links":[{"id":218806,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Virginia","otherGeospatial":"Quantico Creek","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -77.34760827944903,\n              38.57279994132702\n            ],\n            [\n              -77.34726858634457,\n              38.57261981740339\n            ],\n            [\n              -77.34691140753456,\n              38.57289212803224\n            ],\n            [\n              -77.34691140753456,\n              38.5731262796582\n            ],\n            [\n              -77.34682557991937,\n              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V.","contributorId":82386,"corporation":false,"usgs":true,"family":"Slack","given":"K.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":359682,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Feltz, H.R.","contributorId":49341,"corporation":false,"usgs":true,"family":"Feltz","given":"H.R.","email":"","affiliations":[],"preferred":false,"id":359681,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70011471,"text":"70011471 - 1968 - Determination of gold in rocks by neutron activation analysis using fire-assay preconcentration","interactions":[],"lastModifiedDate":"2023-03-20T15:54:42.990636","indexId":"70011471","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","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":"Determination of gold in rocks by neutron activation analysis using fire-assay preconcentration","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"ACS Publications","doi":"10.1021/ac60263a031","usgsCitation":"Simon, F., and Millard, H.T., 1968, Determination of gold in rocks by neutron activation analysis using fire-assay preconcentration: Analytical Chemistry, v. 40, no. 7, p. 1150-1152, https://doi.org/10.1021/ac60263a031.","productDescription":"3 p.","startPage":"1150","endPage":"1152","numberOfPages":"3","costCenters":[],"links":[{"id":220707,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"7","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5059ffa9e4b0c8380cd4f2fa","contributors":{"authors":[{"text":"Simon, F.O.","contributorId":41808,"corporation":false,"usgs":true,"family":"Simon","given":"F.O.","email":"","affiliations":[],"preferred":false,"id":361190,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Millard, Hugh T. Jr.","contributorId":67502,"corporation":false,"usgs":true,"family":"Millard","given":"Hugh","suffix":"Jr.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":361191,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70011475,"text":"70011475 - 1968 - Variation of Nb-Ta, Zr-Hf, Th-U and K-Cs in two diabase-granophyre suites","interactions":[],"lastModifiedDate":"2020-11-29T16:59:55.117971","indexId":"70011475","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Variation of Nb-Ta, Zr-Hf, Th-U and K-Cs in two diabase-granophyre suites","docAbstract":"<p>Concentrations of Nb, Ta, Zr, Hf, Th, U and Cs have been determined in samples of igneous rocks representing the diabase-granophyre suites from Dillsburg, Pennsylvania, and Great Lake, Tasmania.</p><p>Niobium and tantalum have a three to fourfold increase with differentiation in each of the suites. The chilled margin of the Great Lake intrusion contains half the niobium and tantalum content (5.3 ppm and 0.4 ppm, respectively) of the chilled basalt from Dillsburg (10 ppm and 0.9 ppm, respectively). The twofold difference between the suites is correlated with differences in their titanium content. The average<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-1-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>Nb</mtext><mtext>Ta</mtext></math>\"><span class=\"MJX_Assistive_MathML\">NbTa</span></span></span><span>&nbsp;</span>ratios for each suite are similar: 13.5 for the Great Lake suite, and 14.4 for the Dillsburg suite.</p><p>The zirconium content of the two suites is essentially the same and increases from 50 to 60 ppm in the chilled margins to 240–300 ppm in the granophyres. Hafnium is low in the early formed rocks (0.5 –1.5 ppm and achieves a maximum in the granophyres (5–8 ppm). The<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-2-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>Zr</mtext><mtext>Hf</mtext></math>\"><span class=\"MJX_Assistive_MathML\">ZrHf</span></span></span>ratio decreases from 68 to 33 with progressive differentiation.</p><p>In the Dillsburg suite thorium and uranium increase from 2.6 ppm and 0.6 ppm, respectively, in the chilled samples to 11.8 ppm and 3.1 ppm in the granophyres. The chilled margin of the Great Lake suite contains 3.2 ppm thorium and 9.8 ppm uranium; the granophyre contains 11.2 ppm thorium and 2.8 ppm uranium. The average<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-3-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>Th</mtext><mtext>U</mtext></math>\"><span class=\"MJX_Assistive_MathML\">ThU</span></span></span><span>&nbsp;</span>ratios of the Dillsburg and Great Lake suites are nearly the same—4.1 and 4.4, respectively. Within each suite the<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-4-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>Th</mtext><mtext>U</mtext></math>\"><span class=\"MJX_Assistive_MathML\">ThU</span></span></span><span>&nbsp;</span>ratio remains quite constant.</p><p>Cesium and the<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-5-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>K</mtext><mtext>Cs</mtext></math>\"><span class=\"MJX_Assistive_MathML\">KCs</span></span></span><span>&nbsp;</span>ratio do not vary systematically in the Dillsburg suite possibly because of redistribution or loss of cesium by complex geologic processes. Except for the chilled margin of the Great Lake suite, the variation of Cs and the<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-6-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>K</mtext><mtext>Cs</mtext></math>\"><span class=\"MJX_Assistive_MathML\">KCs</span></span></span><span>&nbsp;</span>ratio are in accord with theoretical considerations. Cesium increases from about 0.6 ppm in the lower zone to 3.5 ppm in the granophyre; the<span>&nbsp;</span><span class=\"math\"><span id=\"MathJax-Element-7-Frame\" class=\"MathJax_SVG\" data-mathml=\"<math xmlns=&quot;http://www.w3.org/1998/Math/MathML&quot;><mtext>K</mtext><mtext>Cs</mtext></math>\"><span class=\"MJX_Assistive_MathML\">KCs</span></span></span><span>&nbsp;</span>ratio varies from 10 × 10<sup>3</sup><span>&nbsp;</span>in the lower zone to 6 × 10<sup>3</sup><span>&nbsp;</span>in the granophyre.</p><p>A comparison of the abundance of some of these elements is made with those reported on oceanic tholeiites from the Atlantic and Pacific oceans. Trace elements with large ionic radii (Th, U, Cs) are present in significantly greater concentrations in the two continental tholeiitic series than in the oceanic tholeiites. However, this does not seem to be true for lithophilic elements of smaller ionic radii (Zr and Nb). These trace element distribution patterns, when considered with other minor element and isotopic studies, indicate that</p><dl class=\"list\"><dt class=\"list-label\">1. crustal contamination does not entirely account for differences between continental and oceanic tholeiites, and</dt><dt class=\"list-label\">2. the oceanic tholeiites do not necessarily delimit the geochemical characteristics of the mantle.</dt></dl>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(68)90059-8","issn":"00167037","usgsCitation":"Gottfried, D., Greenland, L., and Campbell, E., 1968, Variation of Nb-Ta, Zr-Hf, Th-U and K-Cs in two diabase-granophyre suites: Geochimica et Cosmochimica Acta, v. 32, no. 9, p. 925-947, https://doi.org/10.1016/0016-7037(68)90059-8.","productDescription":"23 p.","startPage":"925","endPage":"947","numberOfPages":"23","costCenters":[],"links":[{"id":220773,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc16de4b08c986b32a57a","contributors":{"authors":[{"text":"Gottfried, D.","contributorId":92346,"corporation":false,"usgs":true,"family":"Gottfried","given":"D.","email":"","affiliations":[],"preferred":false,"id":361201,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Greenland, L. P.","contributorId":56368,"corporation":false,"usgs":true,"family":"Greenland","given":"L. P.","affiliations":[],"preferred":false,"id":361199,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Campbell, E.Y.","contributorId":59803,"corporation":false,"usgs":true,"family":"Campbell","given":"E.Y.","email":"","affiliations":[],"preferred":false,"id":361200,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70011487,"text":"70011487 - 1968 - Water sample filtration unit","interactions":[],"lastModifiedDate":"2023-10-20T15:24:22.455576","indexId":"70011487","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Water sample filtration unit","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"American Chemical Society","doi":"10.1021/es60016a004","issn":"0013936X","usgsCitation":"Skougstad, M., and Scarbro, G., 1968, Water sample filtration unit: Environmental Science & Technology, v. 2, no. 4, p. 298-301, https://doi.org/10.1021/es60016a004.","productDescription":"4 p.","startPage":"298","endPage":"301","costCenters":[],"links":[{"id":220909,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"4","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505bcc6fe4b08c986b32db42","contributors":{"authors":[{"text":"Skougstad, M. W.","contributorId":59418,"corporation":false,"usgs":true,"family":"Skougstad","given":"M. W.","affiliations":[],"preferred":false,"id":361230,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scarbro, G.F. Jr.","contributorId":96007,"corporation":false,"usgs":true,"family":"Scarbro","given":"G.F.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":361231,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1014189,"text":"1014189 - 1968 - Infectious pancreatic necrosis: Selection of virus-free stock from a population of carrier trout","interactions":[],"lastModifiedDate":"2025-03-04T17:00:04.647505","indexId":"1014189","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2543,"text":"Journal of the Fisheries Research Board of Canada","active":true,"publicationSubtype":{"id":10}},"title":"Infectious pancreatic necrosis: Selection of virus-free stock from a population of carrier trout","docAbstract":"<p><span>Infectious pancreatic necrosis (IPN) is a virulent disease of young trouts and is easily transmitted from infected animals through water and with eggs. At present, the most effective control measure consists of propagation of specific pathogen-free stock. Methods are described for using fish cell cultures to detect IPN virus in peritoneal washes, feces, and gonadal fluids and thereby to identifiy carrier and non-carrier fish. The procedures were used to derive virus-free progeny from a hatchery trout population containing about one-third carrier fish. The progeny were reared to maturity, spawned for 3 successive years, and at each spawning they proved free of virus. Recommendations and precautions are given for those who may wish to apply the procedures.</span></p>","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/f68-030","usgsCitation":"Wolf, K., Quimby, M.C., Carlson, C.P., and Bullock, G.L., 1968, Infectious pancreatic necrosis: Selection of virus-free stock from a population of carrier trout: Journal of the Fisheries Research Board of Canada, v. 25, no. 2, p. 383-391, https://doi.org/10.1139/f68-030.","productDescription":"9 p.","startPage":"383","endPage":"391","numberOfPages":"9","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":197309,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f1e4b07f02db5ee939","contributors":{"authors":[{"text":"Wolf, K.","contributorId":16344,"corporation":false,"usgs":true,"family":"Wolf","given":"K.","email":"","affiliations":[],"preferred":false,"id":319932,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Quimby, M. C.","contributorId":14334,"corporation":false,"usgs":true,"family":"Quimby","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":319931,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carlson, C. P.","contributorId":7229,"corporation":false,"usgs":false,"family":"Carlson","given":"C.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":319930,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bullock, G. L.","contributorId":69498,"corporation":false,"usgs":true,"family":"Bullock","given":"G.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":319933,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1014056,"text":"1014056 - 1968 - The bacteriology of brook trout with tail rot","interactions":[],"lastModifiedDate":"2025-08-04T15:38:16.723419","indexId":"1014056","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3196,"text":"Progressive Fish-Culturist","active":true,"publicationSubtype":{"id":10}},"title":"The bacteriology of brook trout with tail rot","docAbstract":"<p>No abstract available.&nbsp;</p>","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8640(1968)30[19:TBOBTW]2.0.CO;2","usgsCitation":"Bullock, G.L., 1968, The bacteriology of brook trout with tail rot: Progressive Fish-Culturist, v. 30, no. 1, p. 19-22, https://doi.org/10.1577/1548-8640(1968)30[19:TBOBTW]2.0.CO;2.","productDescription":"4 p.","startPage":"19","endPage":"22","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":131461,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aaae4b07f02db6696ce","contributors":{"authors":[{"text":"Bullock, Graham L.","contributorId":9323,"corporation":false,"usgs":true,"family":"Bullock","given":"Graham","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":319693,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70009843,"text":"70009843 - 1968 - Pre-gilbertian conceptions of terrestrial magnetism","interactions":[],"lastModifiedDate":"2020-11-29T17:19:54.822523","indexId":"70009843","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3525,"text":"Tectonophysics","active":true,"publicationSubtype":{"id":10}},"title":"Pre-gilbertian conceptions of terrestrial magnetism","docAbstract":"<p>It is now well known that William Gilbert, in his<span>&nbsp;</span><i>De Magnete</i><span>&nbsp;</span>of 1600, first suggested that the earth behaves as a great magnet. By their very nature, however, such explicit statements tend, in retrospect, to be emphasised at the expense of less explicit antecedent ideas and experiments, with the result that, in the example under consideration here, the impression has sometimes been given that before Gilbert there was not the slightest suspicion that the earth exerts influence on the magnetic needle. In fact, Gilbert's conclusion represented the culmination of many centuries of thought and experimentation on the subject.</p><p>This essay traces the main steps in the evolutionary process from the idea that magnetic ‘virtue’ derived from the heave, through the gradual realisation that magnetism is closely associated with the earth, up to the time of Gilbert's definite statement.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0040-1951(68)90075-9","issn":"00401951","usgsCitation":"Smith, P., 1968, Pre-gilbertian conceptions of terrestrial magnetism: Tectonophysics, v. 6, no. 6, p. 499-510, https://doi.org/10.1016/0040-1951(68)90075-9.","productDescription":"12 p.","startPage":"499","endPage":"510","numberOfPages":"12","costCenters":[],"links":[{"id":218764,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a80dde4b0c8380cd7b24d","contributors":{"authors":[{"text":"Smith, P.J.","contributorId":6579,"corporation":false,"usgs":true,"family":"Smith","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":357267,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70011497,"text":"70011497 - 1968 - Determination of palladium, platinum and rhodium in geologic materials by fire assay and emission spectrography","interactions":[],"lastModifiedDate":"2020-11-29T16:50:51.898381","indexId":"70011497","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3517,"text":"Talanta","active":true,"publicationSubtype":{"id":10}},"title":"Determination of palladium, platinum and rhodium in geologic materials by fire assay and emission spectrography","docAbstract":"<div id=\"aep-abstract-id4\" class=\"abstract author\"><div id=\"aep-abstract-sec-id5\"><p>A method is described for the determination of palladium down to 4ppb (parts per billion, 10<sup>9</sup>), platinum down to 10 ppb and rhodium down to 5 ppb in 15 g of sample. Fire-assay techniques are used to preconcentrate the platinum metals into a gold bead, then the bead is dissolved in<span>&nbsp;</span><i>aqua regia</i><span>&nbsp;</span>and diluted to volume with 1<i>M</i><span>&nbsp;</span>hydrochloric acid. The solution is analysed by optical emission spectrography of the residue from 200 μl of it evaporated on a pair of flat-top graphite electrodes. This method requires much less sample handling than most published methods for these elements. Data are presented for G-1, W-1, and six new standard rocks of the U.S. Geological Survey. The values for palladium in W-1 are in reasonable agreement with previously published data.</p></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0039-9140(68)80014-1","issn":"00399140","usgsCitation":"Hapfty, J., and Riley, L., 1968, Determination of palladium, platinum and rhodium in geologic materials by fire assay and emission spectrography: Talanta, v. 15, no. 1, p. 111-117, https://doi.org/10.1016/0039-9140(68)80014-1.","productDescription":"7 p.","startPage":"111","endPage":"117","numberOfPages":"7","costCenters":[],"links":[{"id":221174,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"15","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ffbbe4b0c8380cd4f379","contributors":{"authors":[{"text":"Hapfty, J.","contributorId":33056,"corporation":false,"usgs":true,"family":"Hapfty","given":"J.","email":"","affiliations":[],"preferred":false,"id":361264,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Riley, L.B.","contributorId":15994,"corporation":false,"usgs":true,"family":"Riley","given":"L.B.","email":"","affiliations":[],"preferred":false,"id":361263,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70009807,"text":"70009807 - 1968 - Nuclear magnetic resonance studies of the phosphorus(v) pesticides: A rapid determination of the isomer ratio of systox","interactions":[],"lastModifiedDate":"2020-11-29T17:21:17.463795","indexId":"70009807","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":760,"text":"Analytica Chimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Nuclear magnetic resonance studies of the phosphorus(v) pesticides: A rapid determination of the isomer ratio of systox","docAbstract":"<div id=\"aep-abstract-id6\" class=\"abstract author\"><div id=\"aep-abstract-sec-id7\"><p id=\"simple-para.0010\">The integration circuit of the Varian A-60 nuclear magnetic resonance spectrometer is used in conjunction with vapor phase chromatography, to develop a rapid analysis technique for the determination of isomer ratios in technical Systox-Sulfotepp mixtures. The complete analysis requires less than 0.1 g of sample and only 15 min. The isomer ratio in the sample may be determined to an accuracy of ±1.5% and the undamaged sample may be recovered.</p></div></div><div id=\"aep-abstract-id8\" class=\"abstract author\" lang=\"fr\"><br></div>","language":"English","publisher":"Elsevier","doi":"10.1016/S0003-2670(00)86752-5","issn":"00032670","usgsCitation":"Babad, H., Taylor, T., and Goldberg, M.C., 1968, Nuclear magnetic resonance studies of the phosphorus(v) pesticides: A rapid determination of the isomer ratio of systox: Analytica Chimica Acta, v. 40, no. C, p. 387-392, https://doi.org/10.1016/S0003-2670(00)86752-5.","productDescription":"6 p.","startPage":"387","endPage":"392","numberOfPages":"6","costCenters":[],"links":[{"id":218906,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"C","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a68cbe4b0c8380cd739d8","contributors":{"authors":[{"text":"Babad, H.","contributorId":72120,"corporation":false,"usgs":true,"family":"Babad","given":"H.","email":"","affiliations":[],"preferred":false,"id":357193,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Taylor, T.N.","contributorId":24910,"corporation":false,"usgs":true,"family":"Taylor","given":"T.N.","email":"","affiliations":[],"preferred":false,"id":357192,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goldberg, M. C.","contributorId":89220,"corporation":false,"usgs":true,"family":"Goldberg","given":"M.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":357194,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70011488,"text":"70011488 - 1968 - Isotope studies of dolomite formation under sedimentary conditions","interactions":[],"lastModifiedDate":"2020-11-29T16:58:41.406632","indexId":"70011488","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Isotope studies of dolomite formation under sedimentary conditions","docAbstract":"<p>Measurements of stable isotope abundances of the carbonate portion of the sediment in Deep Springs Lake, California, indicate the presence of at least three phases: a magnesian calcite, a primary sedimentary dolomite, and a detrital dolomite. The former two have isotopic compositions consistent with precipitation at isotopic equilibrium from waters of the lake area. The measured isotopic fractionation factor between sedimentary dolomite and its interstitial water is 1.0351, which is outside the range possible for calcite-water. This indicates that the dolomite has formed by direct crystallization from solution and not from a caloite precursor without further isotope exchange.</p><p>Isotopic and X-ray evidence does not support the contention of<span>&nbsp;</span><span class=\"small-caps\">Peterson</span><i>et al</i>. (1966) that Deep Springs Lake dolomite crystals grow by means of a calcite-like surface layer.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(68)90076-8","issn":"00167037","usgsCitation":"Clayton, R., and Jones, B., 1968, Isotope studies of dolomite formation under sedimentary conditions: Geochimica et Cosmochimica Acta, v. 32, no. 4, 20 p., https://doi.org/10.1016/0016-7037(68)90076-8.","productDescription":"20 p.","costCenters":[],"links":[{"id":220910,"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":"505a3f8ce4b0c8380cd645ed","contributors":{"authors":[{"text":"Clayton, R.N.","contributorId":36291,"corporation":false,"usgs":true,"family":"Clayton","given":"R.N.","email":"","affiliations":[],"preferred":false,"id":361232,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, B.F.","contributorId":52156,"corporation":false,"usgs":true,"family":"Jones","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":361233,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":2001434,"text":"2001434 - 1968 - Lymphocystis disease of fish","interactions":[],"lastModifiedDate":"2012-02-02T00:14:57","indexId":"2001434","displayToPublicDate":"1968-01-01T00:00:00","publicationYear":"1968","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":22,"text":"Fish Disease Leaflet","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"13","title":"Lymphocystis disease of fish","docAbstract":"No abstract available at this time","language":"English","publisher":"U.S. Fish and Wildlife Service","collaboration":"688/FH","usgsCitation":"Wolf, K., 1968, Lymphocystis disease of fish: Fish Disease Leaflet 13, 4 p.","productDescription":"4 p.","startPage":"0","endPage":"4","numberOfPages":"4","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":199206,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a7fe4b07f02db648aa0","contributors":{"authors":[{"text":"Wolf, K.","contributorId":16344,"corporation":false,"usgs":true,"family":"Wolf","given":"K.","email":"","affiliations":[],"preferred":false,"id":325712,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
]}