{"pageNumber":"4742","pageRowStart":"118525","pageSize":"25","recordCount":165605,"records":[{"id":70156967,"text":"70156967 - 1983 - An earth-science bibliography of the Arabian Peninsula and surrounding area, 1982 supplement","interactions":[],"lastModifiedDate":"2015-09-02T14:01:56","indexId":"70156967","displayToPublicDate":"1983-05-16T13:15:00","publicationYear":"1983","noYear":false,"publicationType":{"id":4,"text":"Book"},"title":"An earth-science bibliography of the Arabian Peninsula and surrounding area, 1982 supplement","docAbstract":"<p><span>An interagency report prepared by the U.S. Geological Survey Saudi Arabian Mission for the Ministry of Petroleum and Mineral Resources, Kingdom of Saudi Arabia.</span></p>","language":"English","publisher":"Ministry of Petroleum and Mineral Resources, Deputy Ministry for Mineral Resources","publisherLocation":"Jiddah, Saudi Arabia","usgsCitation":"Saudi Arabia. Deputy Ministry for Mineral Resources, and U.S. Geological Survey Saudi Arabia Mission, 1983, An earth-science bibliography of the Arabian Peninsula and surrounding area, 1982 supplement, iii, 110 p.","productDescription":"iii, 110 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":307881,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Saudi Arabia","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55e81dade4b0dacf699e6656","contributors":{"compilers":[{"text":"Rooney, R.E.","contributorId":147329,"corporation":false,"usgs":false,"family":"Rooney","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":571267,"contributorType":{"id":3,"text":"Compilers"},"rank":1},{"text":"Selner, G.I.","contributorId":13229,"corporation":false,"usgs":true,"family":"Selner","given":"G.I.","affiliations":[],"preferred":false,"id":571268,"contributorType":{"id":3,"text":"Compilers"},"rank":2}],"authors":[{"text":"Saudi Arabia. Deputy Ministry for Mineral Resources","contributorId":147327,"corporation":true,"usgs":false,"organization":"Saudi Arabia. Deputy Ministry for Mineral Resources","id":571265,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"U.S. Geological Survey Saudi Arabia Mission","contributorId":147326,"corporation":true,"usgs":false,"organization":"U.S. Geological Survey Saudi Arabia Mission","id":571266,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70210050,"text":"70210050 - 1983 - Distribution and origin of sulfur in Colorado oil shale","interactions":[],"lastModifiedDate":"2020-05-12T17:08:31.859007","indexId":"70210050","displayToPublicDate":"1983-05-12T11:50:41","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Distribution and origin of sulfur in Colorado oil shale","docAbstract":"<p>The sulfur content of 1,225 samples of Green River oil shale from two core holes in the Piceance Creek Basin, Colorado, ranges from nearly 0 to 4.9 weight percent. In one core hole, the average sulfur content of a sequence of oil shale 555 m thick, which represents nearly the maximum thickness of oil shale in the basin, is 0.76 weight percent. The vertical distribution of sulfur through the oil shale is cyclic. As many as 25 sulfur cycles have lateral continuity and can be traced between the core holes. Most of the sulfur resides in iron sulfides (pyrite, marcasite, and minor? pyrrhotite), and small amounts are organically bound in kerogen. In general, the concentration of sulfur correlates moderately with shale-oil yield, but the degree of association ranges from quite high in the upper 90 m of the oil -shale sequence to low or none in the leached zone and in illitic oil shale in the lower part of the sequence. Sulfur also correlates moderately with iron in the carbonate oil -shale sequence, but no correlation was found in the illitic samples. Sulfide mineralization is believed to have occurred during early and late stages of diagenesis, and after lithification, during development of the leached zone. Significant amounts of iron found in ankeritic dolomite and in illite probably account for the lack of a strong correlation between sulfur and iron.</p>","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"Oil Shale Symposium Proceedings","largerWorkSubtype":{"id":19,"text":"Conference Paper"},"conferenceTitle":"16th oil shale symposium proceedings ","conferenceDate":"April 13-15, 1983","conferenceLocation":"Golden, Colorado","language":"English","publisher":"Colorado School of Mines","usgsCitation":"Dyni, J.R., 1983, Distribution and origin of sulfur in Colorado oil shale, <i>in</i> Oil Shale Symposium Proceedings, Golden, Colorado, April 13-15, 1983, p. 144-159.","productDescription":"16 p.","startPage":"144","endPage":"159","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":374676,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","otherGeospatial":"Piceance Creek Basin ","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -108.8690185546875,\n              40.03182061333687\n            ],\n            [\n              -107.60009765625,\n              40.03182061333687\n            ],\n            [\n              -107.60009765625,\n              40.643135583312805\n            ],\n            [\n              -108.8690185546875,\n              40.643135583312805\n            ],\n            [\n              -108.8690185546875,\n              40.03182061333687\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Dyni, John R. jdyni@usgs.gov","contributorId":756,"corporation":false,"usgs":true,"family":"Dyni","given":"John","email":"jdyni@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":788922,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70210006,"text":"70210006 - 1983 - Geochemistry of deep-sea manganese nodules; organic involvement","interactions":[],"lastModifiedDate":"2020-05-08T18:07:29.276553","indexId":"70210006","displayToPublicDate":"1983-05-08T13:03:14","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Geochemistry of deep-sea manganese nodules; organic involvement","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"Cameron volume on unconventional mineral deposits ","conferenceTitle":"Cameron symposium on unconventional mineral deposits","conferenceDate":"February 15-16, 1982 ","conferenceLocation":"Dallas, Texas","language":"English","publisher":"Society of Mining Engineers","publisherLocation":"New York, NY","usgsCitation":"Society of Mining Engineers, 1983, Geochemistry of deep-sea manganese nodules; organic involvement, <i>in</i> Cameron volume on unconventional mineral deposits , Dallas, Texas, February 15-16, 1982 , p. 123-132.","productDescription":"10 p.","startPage":"123","endPage":"132","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":374583,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW"}
,{"id":70210005,"text":"70210005 - 1983 - Organic Geochemistry of Sediments Recovered by DSDP/IPOD Leg 75 from under the Benguela Current","interactions":[],"lastModifiedDate":"2020-05-08T17:45:04.209046","indexId":"70210005","displayToPublicDate":"1983-05-08T12:33:50","publicationYear":"1983","noYear":false,"publicationType":{"id":4,"text":"Book"},"title":"Organic Geochemistry of Sediments Recovered by DSDP/IPOD Leg 75 from under the Benguela Current","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":" Coastal Upwelling Its Sediment Record","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":" Plenum Press","usgsCitation":"Meyers, P., Brassell, S., Huc, A., Barron, E., Boyce, R., Dean, W.E., Hayes, W., Keating, B.H., McNulty, C., Schallreuter, R., Sibuet, J., Steinmetz, J., Stow, D., and Stradner, H., 1983, Organic Geochemistry of Sediments Recovered by DSDP/IPOD Leg 75 from under the Benguela Current, v. 10, 14 p.","productDescription":"14 p.","startPage":"453","endPage":"466","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":374582,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Meyers, P.A.","contributorId":53527,"corporation":false,"usgs":true,"family":"Meyers","given":"P.A.","email":"","affiliations":[],"preferred":false,"id":788771,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brassell, S.","contributorId":101461,"corporation":false,"usgs":true,"family":"Brassell","given":"S.","email":"","affiliations":[],"preferred":false,"id":788772,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Huc, A.Y.","contributorId":224615,"corporation":false,"usgs":false,"family":"Huc","given":"A.Y.","email":"","affiliations":[],"preferred":false,"id":788773,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barron, E.J.","contributorId":182082,"corporation":false,"usgs":false,"family":"Barron","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":788774,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Boyce, R.E.","contributorId":8987,"corporation":false,"usgs":true,"family":"Boyce","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":788775,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dean, Walter E. dean@usgs.gov","contributorId":1801,"corporation":false,"usgs":true,"family":"Dean","given":"Walter","email":"dean@usgs.gov","middleInitial":"E.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":788776,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hayes, W.W.","contributorId":98743,"corporation":false,"usgs":true,"family":"Hayes","given":"W.W.","email":"","affiliations":[],"preferred":true,"id":788777,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Keating, Barbara H.","contributorId":42520,"corporation":false,"usgs":true,"family":"Keating","given":"Barbara","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":788778,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"McNulty, C.L.","contributorId":224616,"corporation":false,"usgs":false,"family":"McNulty","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":788779,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Schallreuter, R.E.","contributorId":224617,"corporation":false,"usgs":false,"family":"Schallreuter","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":788780,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Sibuet, Jean-Claude","contributorId":221651,"corporation":false,"usgs":false,"family":"Sibuet","given":"Jean-Claude","email":"","affiliations":[],"preferred":false,"id":788781,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Steinmetz, J.C.","contributorId":224618,"corporation":false,"usgs":false,"family":"Steinmetz","given":"J.C.","email":"","affiliations":[{"id":40350,"text":"American Geosciences Institute","active":true,"usgs":false}],"preferred":false,"id":788782,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Stow, D.A.V.","contributorId":35441,"corporation":false,"usgs":true,"family":"Stow","given":"D.A.V.","email":"","affiliations":[],"preferred":false,"id":788783,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Stradner, Herbert","contributorId":224619,"corporation":false,"usgs":false,"family":"Stradner","given":"Herbert","email":"","affiliations":[],"preferred":false,"id":788784,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}}
,{"id":1013641,"text":"1013641 - 1983 - Changes in phototaxis during early development of walleye","interactions":[],"lastModifiedDate":"2026-04-10T16:32:22.456483","indexId":"1013641","displayToPublicDate":"1983-05-01T00:00:00","publicationYear":"1983","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":"Changes in phototaxis during early development of walleye","docAbstract":"<p><span>Phototaxis of walleyes Stizostedion vitreum vitreum was examined during the first 11 weeks of larva and juvenile development. Fish were subjected to six light intensities ranging from 2 to 34 lux, plus 7,800 lux as an extreme. The number of fish positioned in each light intensity was used to determine the phototactic response. Larvae and juveniles 1 to 8 weeks old (9 to 32 mm total length) were attracted to the highest light intensity (7,800 lux), and juveniles older than 8 weeks (32 to 40 mm long) aggregated at the lowest intensities (2 and 4 lux). The change from positive to negative phototaxis was more closely related to fish size than to age.</span></p>","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1983)112<445:CIPDED>2.0.CO;2","usgsCitation":"Bulkowski, L., and Meade, J.W., 1983, Changes in phototaxis during early development of walleye: Transactions of the American Fisheries Society, v. 112, no. 3, p. 445-447, https://doi.org/10.1577/1548-8659(1983)112<445:CIPDED>2.0.CO;2.","productDescription":"3 p.","startPage":"445","endPage":"447","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":131912,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e5e4b07f02db5e6cc3","contributors":{"authors":[{"text":"Bulkowski, L.","contributorId":88312,"corporation":false,"usgs":true,"family":"Bulkowski","given":"L.","email":"","affiliations":[],"preferred":false,"id":318945,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Meade, J. W.","contributorId":38082,"corporation":false,"usgs":true,"family":"Meade","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":318944,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70209773,"text":"70209773 - 1983 - Magnetic models of crystalline terrane; accounting for the effect of topography","interactions":[],"lastModifiedDate":"2020-04-24T19:58:32.497566","indexId":"70209773","displayToPublicDate":"1983-04-24T14:52:54","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1808,"text":"Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Magnetic models of crystalline terrane; accounting for the effect of topography","docAbstract":"<p><span>Igneous rocks commonly have large magnetic susceptibilities so that high topographic relief in crystalline terrane can produce significant anomalies in aeromagnetic surveys. Topographic anomalies are particularly significant in relatively undeformed volcanic terrane because young volcanic rocks generally have large natural remanent magnetizations as well as large susceptibilities. These anomalies commonly appear in aeromagnetic surveys as a complex pattern of high-amplitude, short-wavelength magnetic features that tend to obscure anomalies caused by deeper geologic sources. We have facilitated geologic interpretation of an aeromagnetic survey of the Oregon Cascade Range by calculating the magnetic field caused by a three-dimensional (3-D) topographic model. Maps of the calculated field are compared with observed aeromagnetic data both visually and with a numerical technique that produces a contour map of correlation coefficients for the model. These comparisons allow quick recognition of anomalies caused by normally or reversely magnetized topographic features and, more importantly, identification of anomalies caused by geologic features not obviously caused by the topography.</span></p>","language":"English","publisher":"GeoScienceWorld","doi":"10.1190/1.1441437","usgsCitation":"Blakely, R.J., and Grauch, V.J., 1983, Magnetic models of crystalline terrane; accounting for the effect of topography: Geophysics, v. 48, no. 11, p. 1551-1557, https://doi.org/10.1190/1.1441437.","productDescription":"7 p.","startPage":"1551","endPage":"1557","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":374272,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oergon","otherGeospatial":"Oregon Cascade Range","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.03613281249999,\n              42.147114459220994\n            ],\n            [\n              -121.17919921875001,\n              42.147114459220994\n            ],\n            [\n              -121.17919921875001,\n              43.11702412135048\n            ],\n            [\n              -122.03613281249999,\n              43.11702412135048\n            ],\n            [\n              -122.03613281249999,\n              42.147114459220994\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"48","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Blakely, Richard J. 0000-0003-1701-5236 blakely@usgs.gov","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":1540,"corporation":false,"usgs":true,"family":"Blakely","given":"Richard","email":"blakely@usgs.gov","middleInitial":"J.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":787954,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grauch, V. J. 0000-0002-0761-3489 tien@usgs.gov","orcid":"https://orcid.org/0000-0002-0761-3489","contributorId":152256,"corporation":false,"usgs":true,"family":"Grauch","given":"V.","email":"tien@usgs.gov","middleInitial":"J.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":787955,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70209768,"text":"70209768 - 1983 - Airborne biogeophysical mapping of hidden mineral deposits ","interactions":[],"lastModifiedDate":"2020-04-24T18:42:16.787401","indexId":"70209768","displayToPublicDate":"1983-04-24T13:27:49","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Airborne biogeophysical mapping of hidden mineral deposits ","docAbstract":"<p>Airborne survey techniques have been developed to detect and map forest canopies affected by metal-induced stress. A high spectral resolution airborne spectroradiometer system, used over a known forest-covered copper soil anomaly, has revealed previously unknown spectral changes in the near-infrared chlorophyll absorption spectrum. The metal-induced spectral shifts have subsequently been reproduced in the laboratory at Columbia University. Waveform analysis techniques specifically designed for computer analysis of the high spectral resolution aircraft data filter out the very strong background noise introduced by variations in normal, unstressed vegetation canopy and by topographic effects. The wave-form method proves most effective in extracting the subtle spectral indicators of metal-induced stress. The analytic method is a unique frequency domain technique made possible by the high spectral resolution of the 500-channel spectroradiometer system.</p><p>The biogeophysical technique is demonstrated by three mapping surveys of Cotter Basin, Montana, and Spirit Lake, Washington. This airborne mapping technique presents new application opportunities in large areas of the world where heavy forest cover has in the past made geologic and geophysical exploration tedious and expensive. The tree cover with widespreading and deeply penetrating root systems is turned to an advantage in the airborne biogeophysical technique by detecting metal-induced changes in the chlorophyll reflectance spectrum. </p>","language":"English","publisher":"GeoScienceWorld","doi":"10.2113/gsecongeo.78.4.737","usgsCitation":"Collins, W., Chang, S., Raines, G.L., Canney, F.C., and Ashley, R.P., 1983, Airborne biogeophysical mapping of hidden mineral deposits : Economic Geology, v. 78, no. 4, p. 737-749, https://doi.org/10.2113/gsecongeo.78.4.737.","productDescription":"13 p.","startPage":"737","endPage":"749","costCenters":[],"links":[{"id":374267,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Montana","otherGeospatial":"Cotter Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -112.78564453124999,\n              47.00273390667881\n            ],\n            [\n              -111.64306640625,\n              47.00273390667881\n            ],\n            [\n              -111.64306640625,\n              47.53203824675999\n            ],\n            [\n              -112.78564453124999,\n              47.53203824675999\n            ],\n            [\n              -112.78564453124999,\n              47.00273390667881\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"78","issue":"4","noUsgsAuthors":false,"publicationDate":"1983-07-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Collins, William","contributorId":50146,"corporation":false,"usgs":true,"family":"Collins","given":"William","affiliations":[],"preferred":false,"id":787931,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chang, Sheng-Huei","contributorId":37256,"corporation":false,"usgs":true,"family":"Chang","given":"Sheng-Huei","email":"","affiliations":[],"preferred":false,"id":787932,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Raines, G. L.","contributorId":90720,"corporation":false,"usgs":true,"family":"Raines","given":"G.","middleInitial":"L.","affiliations":[],"preferred":false,"id":787933,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Canney, Frank C.","contributorId":91251,"corporation":false,"usgs":true,"family":"Canney","given":"Frank","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":787934,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ashley, Roger P. ashley@usgs.gov","contributorId":2749,"corporation":false,"usgs":true,"family":"Ashley","given":"Roger","email":"ashley@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":787935,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70209349,"text":"70209349 - 1983 - Intrusive rocks and plutonic belts of southeastern Alaska, U.S.A","interactions":[{"subject":{"id":8043,"text":"ofr8078 - 1980 - Intrusive rocks and plutonic belts of southeastern Alaska, U.S.A.","indexId":"ofr8078","publicationYear":"1980","noYear":false,"title":"Intrusive rocks and plutonic belts of southeastern Alaska, U.S.A."},"predicate":"SUPERSEDED_BY","object":{"id":70209349,"text":"70209349 - 1983 - Intrusive rocks and plutonic belts of southeastern Alaska, U.S.A","indexId":"70209349","publicationYear":"1983","noYear":false,"title":"Intrusive rocks and plutonic belts of southeastern Alaska, U.S.A"},"id":1}],"lastModifiedDate":"2020-04-25T02:19:01.272727","indexId":"70209349","displayToPublicDate":"1983-04-01T13:21:03","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1726,"text":"GSA Memoirs","active":true,"publicationSubtype":{"id":10}},"title":"Intrusive rocks and plutonic belts of southeastern Alaska, U.S.A","docAbstract":"<p>About 30 percent of the 175,000-km<sup>2</sup><span>&nbsp;</span>area of southeastern Alaska is underlain by intrusive igneous rocks. Compilation of available information on the distribution, composition, and ages of these rocks indicates the presence of six major and six minor plutonic belts.</p><p>From west to east, the major belts are: the Fairweather-Baranof belt of early to mid-Tertiary granodiorite; the Muir-Chichagof belt of mid-Cretaceous tonalite and granodiorite; the Admiralty-Revillagigedo belt of porphyritic granodiorite, quartz diorite, and diorite of probable Cretaceous age; the Klukwan-Duke belt of concentrically zoned or Alaskan-type ultramafic-mafic plutons of mid-Cretaceous age within the Admiralty-Revillagigedo belt; the Coast Plutonic Complex sill belt of tonalite of unknown, but perhaps mid-Cretaceous, age; and the Coast Plutonic Complex belt I of early to mid-Tertiary granodiorite and quartz monzonite.</p><p>The minor belts are distributed as follows: the Glacier Bay belt of Cretaceous and(or) Tertiary granodiorite, tonalite, and quartz diorite lies within the Fair-weather-Baranof belt; layered gabbro complexes of inferred mid-Tertiary age lie within and are probably related to the Fairweather-Baranof belt; the Chilkat-Chichagof belt of Jurassic granodiorite and tonalite lies within the Muir-Chichagof belt; the Sitkoh Bay alkaline, the Kendrick Bay pyroxenite to quartz monzonite, and the Annette and Cape Fox trondhjemite plutons, all interpreted to be of Ordovician(?) age, together form the crude southern southeastern Alaska belt within the Muir-Chichagof belt; the Kuiu-Etolin mid-Tertiary belt of volcanic and plutonic rocks extends from the Muir-Chichagof belt eastward into the Admiralty-Revillagigedo belt; and the Behm Canal belt of mid- to late Tertiary granite lies within and next to Coast Plutonic Complex belt II. In addition, scattered mafic-ultramafic bodies occur within the Fairweather-Baranof, Muir-Chichagof, and Coast Plutonic Complex belts I and II. Palinspastic reconstruction of 200 km of right-lateral movement on the Chatham Strait fault does not significantly change the pattern of the major belts but does bring parts of the minor mid-Tertiary and Ordovician(?) belts closer together.</p><p>The major belts are related to the stratigraphic-tectonic terranes of Berg, Jones, and Coney (1978) as follows: the Fairweather-Baranof belt is largely in the Chugach, Wrangell (Wrangellia), and Alexander terranes; the Muir-Chichagof belt is in the Alexander and Wrangell terranes; the Admiralty-Revillagigedo belt is in the Gravina and Taku terranes; the Klukwan-Duke belt is in the Gravina, Taku, and Alexander terranes; the Coast Plutonic Complex sill belt is probably between the Taku and Tracy Arm terranes; and the Coast Plutonic Complex belts I and II are in the Tracy Arm and Stikine terranes.</p><p>Significant metallic-mineral deposits are spatially related to certain of these belts, and some deposits may be genetically related. Gold, copper, and molybdenum occurrences may be related to granodiorites of the Fairweather-Baranof belt. Magmatic copper-nickel deposits occur in the layered gabbro within that belt. The Juneau gold belt, which contains gold, silver, copper, lead, and zinc occurrences, parallels and lies close to the Coast Plutonic Complex sill belt; iron deposits occur in the Klukwan-Duke belt; and porphyry molybdenum deposits occur in the Behm Canal belt.</p><p>The Muir-Chichagof belt of mid-Cretaceous age and the Admiralty-Revillagigedo belt of probable Cretaceous age are currently interpreted as possible magmatic arcs associated with subduction events. In general, the other belts of intrusive rocks are spatially related to structural discontinuities, but genetic relations, if any, are not yet known. The Coast Plutonic Complex sill belt is probably related to a post-Triassic, pre-early Tertiary suture zone that nearly corresponds to the boundary between the Tracy Arm and Taku terranes. The boundary between the Admiralty-Revillagigedo and Muir-Chichagof belts coincides nearly with the Seymour Canal-Clarence Strait lineament and also is probably a major post-Triassic suture.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/MEM159-p171","usgsCitation":"Brew, D.A., and Morrell, R.P., 1983, Intrusive rocks and plutonic belts of southeastern Alaska, U.S.A: GSA Memoirs, v. 159, p. 171-194, https://doi.org/10.1130/MEM159-p171.","productDescription":"24 p.","startPage":"171","endPage":"194","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":373716,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Southeastern Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -135.087890625,\n              59.5343180010956\n            ],\n            [\n              -138.076171875,\n              58.53959476664049\n            ],\n            [\n              -133.2421875,\n              54.16243396806779\n            ],\n            [\n              -129.814453125,\n              55.27911529201561\n            ],\n            [\n              -135.087890625,\n              59.5343180010956\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"159","noUsgsAuthors":false,"publicationDate":"1983-01-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Brew, David A. dbrew@usgs.gov","contributorId":3244,"corporation":false,"usgs":true,"family":"Brew","given":"David","email":"dbrew@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":786244,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morrell, Robert P.","contributorId":19157,"corporation":false,"usgs":true,"family":"Morrell","given":"Robert","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":786245,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70011645,"text":"70011645 - 1983 - Latest Oligocene through early middle Miocene diatom biostratigraphy of the eastern tropical Pacific","interactions":[],"lastModifiedDate":"2024-10-02T15:38:52.843465","indexId":"70011645","displayToPublicDate":"1983-04-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2673,"text":"Marine Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Latest Oligocene through early middle Miocene diatom biostratigraphy of the eastern tropical Pacific","docAbstract":"<p><span>Study of DSDP Sites 71, 77, and 495 has allowed the development of a refined diatom biostratigraphy for the latest Oligocene through early middle Miocene of the eastern tropical Pacific which is well correlated to the low-latitude zonations for planktonic foraminifers, coccoliths, and radiolarians. Six zones and 7 subzones are proposed, and correlation with high-latitude diatoms zonations for the North Pacific, the Norwegian Sea, and the Southern Ocean is suggested by the discovery of selected diatoms in these tropical sediments which were previously thought to be restricted to high latitudes. Six new species and one new variety of diatoms which are stratigraphically useful are proposed:&nbsp;</span><i>Actinocyclus hajosiae</i><span>, n. sp.,&nbsp;</span><i>A. radionovae</i><span>, n. sp.,&nbsp;</span><i>Coscinodiscus blysmos</i><span>, n. sp.,&nbsp;</span><i>C. praenodulifer</i><span>, n. sp.,&nbsp;</span><i>Craspedodiscus rydei</i><span>, n. sp.,&nbsp;</span><i>Thalassiosira bukryi</i><span>, n. sp., and&nbsp;</span><i>Coscinodiscus lewisianus</i><span>&nbsp;var.&nbsp;</span><i>robustus</i><span>&nbsp;n. var.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0377-8398(83)90012-9","usgsCitation":"Barron, J.A., 1983, Latest Oligocene through early middle Miocene diatom biostratigraphy of the eastern tropical Pacific: Marine Micropaleontology, v. 7, no. 6, p. 487-515, https://doi.org/10.1016/0377-8398(83)90012-9.","productDescription":"29 p.","startPage":"487","endPage":"515","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":502523,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"text":"External Repository"},{"id":221378,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a457ce4b0c8380cd6736c","contributors":{"authors":[{"text":"Barron, John A.","contributorId":116559,"corporation":false,"usgs":true,"family":"Barron","given":"John","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":361611,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1007647,"text":"1007647 - 1983 - Crassulacean acid metabolism in Isoetes bolanderi in high elevation oligotrophic lakes","interactions":[],"lastModifiedDate":"2025-03-21T16:28:39.561026","indexId":"1007647","displayToPublicDate":"1983-04-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2932,"text":"Oecologia","active":true,"publicationSubtype":{"id":10}},"title":"Crassulacean acid metabolism in Isoetes bolanderi in high elevation oligotrophic lakes","docAbstract":"<p><i>Isoetes bolanderi</i><span>&nbsp;dominates the littoral flora of Siesta (elevation 2,440 m) and Ellery (2,905 m) lakes in the Sierra Nevada Range of California, USA. Both lakes are sparsely vegetated and&nbsp;</span><i>I. bolanderi</i><span>&nbsp;maintained aboveground oven dry weight of 30–50 m</span><sup>−22</sup><span>&nbsp;through most of the 1981 summer growing season. Plants at the higher elevation Ellery Lake were half as large as plants at Siesta Lake and had substantially more biomass in corms. Titratable acidity levels in&nbsp;</span><i>Isoetes</i><span>&nbsp;leaves showed a diurnal fluctuation &lt;50 μeq g</span><sup>1</sup><span>&nbsp;fresh weight early in the season at the highest elevation site but this increased to ∼300 μeq g</span><sup>1</sup><span>&nbsp;FW by mid-summer; starch and chlorophyll levels likewise increased in the leaves over this time. Throughout the season the magnitude of the diurnal acid change was comparable in</span><i>Isoetes</i><span>&nbsp;from both lakes but the dynamics of daytime deacidification were not. Averaged over the season, total daytime deacidification at Ellery Lake was 65% complete by noon whereas at Siesta Lake it was only 22% complete by noon. It is suggested that this may be related to the fact that Siesta Lake was more acidic and thus more carbon was in the form of free CO</span><sub>2</sub><span>. In both lakes water chemistry showed no consistent diurnal fluctuation in pH or free CO</span><sub>2</sub><span>&nbsp;though total inorganic carbon levels were at the extreme low end for aquatic habitats. The studies reported here suggest that under extremely low inorganic carbon levels there may be selection for nighttime CO</span><sub>2</sub><span>&nbsp;assimilation. Consistent with this hypothesis is the observation that emergent&nbsp;</span><i>I. bolanderi</i><span>&nbsp;plants, resulting from fluctuating water levels, initiated leaves with stomata (unlike adjacent submerged plants) and, although these leaves had substantially higher chlorophyll levels, they showed an order of magnitude less acid fluctuation than submerged leaves.</span></p>","language":"English","publisher":"Springer Nature","doi":"10.1007/BF00384543","usgsCitation":"Keeley, J., Walker, C., and Mathews, R., 1983, Crassulacean acid metabolism in Isoetes bolanderi in high elevation oligotrophic lakes: Oecologia, v. 58, no. 1, p. 63-69, https://doi.org/10.1007/BF00384543.","productDescription":"7 p.","startPage":"63","endPage":"69","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130135,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","county":"Mono County, Tuolumne County","otherGeospatial":"Ellery Lake, Siesta 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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":315787,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walker, C.M.","contributorId":16789,"corporation":false,"usgs":true,"family":"Walker","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":315785,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mathews, R.P.","contributorId":62552,"corporation":false,"usgs":true,"family":"Mathews","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":315786,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1007646,"text":"1007646 - 1983 - Crassulacean acid metabolism in the seasonally submerged aquatic Isoetes howellii","interactions":[],"lastModifiedDate":"2025-03-21T16:34:51.571783","indexId":"1007646","displayToPublicDate":"1983-04-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2932,"text":"Oecologia","active":true,"publicationSubtype":{"id":10}},"title":"Crassulacean acid metabolism in the seasonally submerged aquatic Isoetes howellii","docAbstract":"<p><span>Evidence to date is consistent with the hypothesis that the submerged aquatic&nbsp;</span><i>Isoetes howellii</i><span>&nbsp;Engelmann possesses crassulacean acid metabolism. Quantitative&nbsp;</span><sup>14</sup><span>C uptake studies indicate that CO</span><sub>2</sub><span>&nbsp;assimilation in both the light and dark are functions of pH and total inorganic carbon level. In both the light and dark, maximum uptake rates in 0.6 mM NaHCO</span><sub>3</sub><span>&nbsp;were double the rates in 0.3 mM NaHCO</span><sub>3</sub><span>. At both carbon levels there was a large drop in carbon assimilation rate between pH 6 and 8. In nature water pH and inorganic carbon level fluctuated diurnally thus complicating the determination of the contribution of light vs dark CO</span><sub>2</sub><span>&nbsp;uptake to the total carbon gain. On a sunny day between 0600 and 1200 h water chemistry changed markedly with ∼40% reduction in total carbon, ∼2 pH unit rise resulting from ∼100% depletion of free CO</span><sub>2</sub><span>. Under such conditions daytime deacidification in&nbsp;</span><i>Isoetes</i><span>&nbsp;leaves was 88% complete by noon. In contrast, on an overcast day, reduction of carbon in the water was much slower, deacidification was only 46% complete by noon and substantial malic acid levels remained in the leaves at the end of the day. Upon emergence crassulacean acid metabolism was largely lost in&nbsp;</span><i>Isoetes</i><span>&nbsp;leaves. Preliminary estimates suggest that under natural submerged conditions, early morning photosynthetic rates may be substantially higher than dark CO</span><sub>2</sub><span>&nbsp;uptake rates, though uptake rates throughout much of the day could be substantially lower than nightime CO</span><sub>2</sub><span>&nbsp;assimilation.</span></p>","language":"English","publisher":"Springer Nature","doi":"10.1007/BF00384542","usgsCitation":"Keeley, J., 1983, Crassulacean acid metabolism in the seasonally submerged aquatic Isoetes howellii: Oecologia, v. 58, no. 1, p. 57-62, https://doi.org/10.1007/BF00384542.","productDescription":"6 p.","startPage":"57","endPage":"62","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130134,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"58","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db683579","contributors":{"authors":[{"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":315784,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5221836,"text":"5221836 - 1983 - The relationship between harvest and survival rates of mallards:  A  straightforward approach with partitioned data sets","interactions":[],"lastModifiedDate":"2024-11-01T16:49:47.583928","indexId":"5221836","displayToPublicDate":"1983-04-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"The relationship between harvest and survival rates of mallards:  A  straightforward approach with partitioned data sets","docAbstract":"<p>We randomly partitioned mallard (<i>Anas platyrhynchos</i>) bandings and recoveries from each of a number of selected reference areas into 2 groups and estimated survival and harvest rates for each area and group. This procedure produced independent vectors of survival- and harvest-rate estimates, which were used to test the general hypothesis that mallard survival and harvest rates were inversely related. We used Spearman rank correlation analysis and z-test contrasts between survival rates from years of high vs. low harvest rates. We also conducted computer simulation experiments to gain insight into the ability of these analyses to detect the relationship of interest. The data analyses suggested that survival and harvest rates of young females were inversely related, at least for the 5 areas included in the analysis. However, for young males and adults of both sexes, the analyses provided no evidence of an inverse relationship between survival and harvest rates, except possibly in a few specific areas.</p>","language":"English","publisher":"Wiley","doi":"10.2307/3808506","usgsCitation":"Nichols, J., and Hines, J.E., 1983, The relationship between harvest and survival rates of mallards:  A  straightforward approach with partitioned data sets: Journal of Wildlife Management, v. 47, no. 2, p. 334-348, https://doi.org/10.2307/3808506.","productDescription":"15 p.","startPage":"334","endPage":"348","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":194351,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6fe4b07f02db640f69","contributors":{"authors":[{"text":"Nichols, James D. 0000-0002-7631-2890 jnichols@usgs.gov","orcid":"https://orcid.org/0000-0002-7631-2890","contributorId":405,"corporation":false,"usgs":true,"family":"Nichols","given":"James D.","email":"jnichols@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":334795,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hines, James E. 0000-0001-5478-7230 jhines@usgs.gov","orcid":"https://orcid.org/0000-0001-5478-7230","contributorId":146530,"corporation":false,"usgs":true,"family":"Hines","given":"James","email":"jhines@usgs.gov","middleInitial":"E.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":334796,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5221846,"text":"5221846 - 1983 - Body shot in Atlantic brant","interactions":[],"lastModifiedDate":"2024-11-01T16:46:07.271971","indexId":"5221846","displayToPublicDate":"1983-04-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Body shot in Atlantic brant","docAbstract":"<p>No abstract available.&nbsp;</p>","language":"English","publisher":"Wiley","doi":"10.2307/3808529","usgsCitation":"Kirby, R., Obrecht, H.H., and Perry, M., 1983, Body shot in Atlantic brant: Journal of Wildlife Management, v. 47, no. 2, p. 527-530, https://doi.org/10.2307/3808529.","productDescription":"4 p.","startPage":"527","endPage":"530","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":196990,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New 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III","contributorId":79545,"corporation":false,"usgs":true,"family":"Obrecht","given":"Holliday","suffix":"III","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":334820,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Perry, Matthew C. 0000-0001-6452-9534","orcid":"https://orcid.org/0000-0001-6452-9534","contributorId":91601,"corporation":false,"usgs":true,"family":"Perry","given":"Matthew C.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":334819,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70204904,"text":"70204904 - 1983 - Comparison of stable isotope reference samples","interactions":[],"lastModifiedDate":"2025-06-03T23:26:15.792094","indexId":"70204904","displayToPublicDate":"1983-03-17T09:05:55","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of stable isotope reference samples","docAbstract":"<p><span>Use of light stable isotope ratio measurements has proliferated in the past decade. The need for procuring additional stable isotope reference materials was recognized at an International Atomic Energy Agency (IAEA) consultants' meeting convened in 1976</span><sup>1</sup><span>. This group recommended acquisition of two carbonates, two carbon dioxide samples, a biotite, a sulphate, and other reference materials. We report here on the mass-spectrometric analysis of these and other reference samples in a single laboratory to minimize interlaboratory calibration errors. A result of this work is an improved equation for relating the PDB isotope scale (belemnite from the Peedee Formation of South Carolina adopted in the 1950s as a reference in palaeotemperature studies</span><sup>2</sup><span>) to the V-SMOW (Vienna-Standard Mean Ocean Water) scale</span><sup>1</sup><span>.</span></p>","language":"English","publisher":"Springer Nature","doi":"10.1038/302236a0","usgsCitation":"Coplen, T.B., Kendall, C., and Hopple, J.A., 1983, Comparison of stable isotope reference samples: Nature, v. 302, p. 236-238, https://doi.org/10.1038/302236a0.","productDescription":"3 p.","startPage":"236","endPage":"238","costCenters":[],"links":[{"id":366819,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"302","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Coplen, Tyler B. 0000-0003-4884-6008 tbcoplen@usgs.gov","orcid":"https://orcid.org/0000-0003-4884-6008","contributorId":508,"corporation":false,"usgs":true,"family":"Coplen","given":"Tyler","email":"tbcoplen@usgs.gov","middleInitial":"B.","affiliations":[{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true}],"preferred":true,"id":768964,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kendall, Carol 0000-0002-0247-3405 ckendall@usgs.gov","orcid":"https://orcid.org/0000-0002-0247-3405","contributorId":1462,"corporation":false,"usgs":true,"family":"Kendall","given":"Carol","email":"ckendall@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":768965,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hopple, Jessica A. 0000-0003-3180-2252 jahopple@usgs.gov","orcid":"https://orcid.org/0000-0003-3180-2252","contributorId":198469,"corporation":false,"usgs":true,"family":"Hopple","given":"Jessica","email":"jahopple@usgs.gov","middleInitial":"A.","affiliations":[{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":470,"text":"New Jersey Water Science Center","active":true,"usgs":true}],"preferred":true,"id":768966,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70011315,"text":"70011315 - 1983 - Correlation of changes in gravity, elevation, and strain in southern California","interactions":[],"lastModifiedDate":"2025-12-09T16:54:42.977291","indexId":"70011315","displayToPublicDate":"1983-03-11T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Correlation of changes in gravity, elevation, and strain in southern California","docAbstract":"<p><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\"><span>Measurements made once or twice a year from 1977 through 1982 show large correlated changes in gravity, elevation, and strain in several southern California networks. Precise gravity surveys indicate changes of as much as 25 microgals between surveys 6 months apart. Repeated surveys show that annual elevation changes as large as 100 millimeters occur along baselines 40 to 100 kilometers long. Laser-ranging surveys reveal coherent changes in areal strain of 1 to 2 parts per million occurred over much of southern California during 1978 and 1979. Although the precision of these measuring systems has been questioned, the rather good agreement among them suggests that the observed changes reflect true crustal deformation.</span></span></p>","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.219.4589.1215","issn":"00368075","usgsCitation":"Jachens, R., Thatcher, W., Roberts, C.W., and Stein, R., 1983, Correlation of changes in gravity, elevation, and strain in southern California: Science, v. 219, no. 4589, p. 1215-1217, https://doi.org/10.1126/science.219.4589.1215.","productDescription":"3 p.","startPage":"1215","endPage":"1217","costCenters":[],"links":[{"id":221519,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"southern California","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -120.81728538128881,\n              35.74255876034496\n            ],\n            [\n              -120.81728538128881,\n              32.59549660827203\n            ],\n            [\n              -114.20893312623092,\n              32.59549660827203\n            ],\n            [\n              -114.20893312623092,\n              35.74255876034496\n            ],\n            [\n              -120.81728538128881,\n              35.74255876034496\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"219","issue":"4589","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fc36e4b0c8380cd4e19d","contributors":{"authors":[{"text":"Jachens, R.C.","contributorId":55433,"corporation":false,"usgs":true,"family":"Jachens","given":"R.C.","email":"","affiliations":[],"preferred":false,"id":360805,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thatcher, W.","contributorId":32669,"corporation":false,"usgs":true,"family":"Thatcher","given":"W.","email":"","affiliations":[],"preferred":false,"id":360804,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Roberts, C. W.","contributorId":61816,"corporation":false,"usgs":true,"family":"Roberts","given":"C.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":360806,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stein, R.S.","contributorId":8875,"corporation":false,"usgs":true,"family":"Stein","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":360803,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70208964,"text":"70208964 - 1983 - Comment and Reply on ‘Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada’: REPLY","interactions":[],"lastModifiedDate":"2020-03-09T13:42:26","indexId":"70208964","displayToPublicDate":"1983-03-09T13:39:53","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Comment and Reply on ‘Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada’: REPLY","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"GSA","doi":"10.1130/0091-7613(1983)11<618a:CAROMA>2.0.CO;2","usgsCitation":"Ketner, K.B., 1983, Comment and Reply on ‘Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada’: REPLY: Geology, v. 11, no. 10, p. 618-618, https://doi.org/10.1130/0091-7613(1983)11<618a:CAROMA>2.0.CO;2.","productDescription":"1 p.","startPage":"618","endPage":"618","costCenters":[],"links":[{"id":373018,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ketner, Keith B.","contributorId":957,"corporation":false,"usgs":true,"family":"Ketner","given":"Keith","email":"","middleInitial":"B.","affiliations":[],"preferred":true,"id":784210,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70208963,"text":"70208963 - 1983 - Comment and Reply on ‘Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada’: REPLY","interactions":[],"lastModifiedDate":"2020-03-09T13:29:32","indexId":"70208963","displayToPublicDate":"1983-03-09T13:27:19","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Comment and Reply on ‘Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada’: REPLY","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"GSA","doi":"10.1130/0091-7613(1983)11<61:CAROMA>2.0.CO;2","usgsCitation":"Ketner, K.B., 1983, Comment and Reply on ‘Mid-Paleozoic age of the Roberts thrust unsettled by new data from northern Nevada’: REPLY: Geology, v. 11, no. 1, p. 61-62, https://doi.org/10.1130/0091-7613(1983)11<61:CAROMA>2.0.CO;2.","productDescription":"2 p.","startPage":"61","endPage":"62","costCenters":[],"links":[{"id":373017,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ketner, Keith B.","contributorId":957,"corporation":false,"usgs":true,"family":"Ketner","given":"Keith","email":"","middleInitial":"B.","affiliations":[],"preferred":true,"id":784209,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70011236,"text":"70011236 - 1983 - The Giles County, Virginia, seismic zone","interactions":[],"lastModifiedDate":"2025-12-10T19:50:37.434361","indexId":"70011236","displayToPublicDate":"1983-03-04T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"The Giles County, Virginia, seismic zone","docAbstract":"A well-defined seismic zone recently detected in Virginia has an orientation that is not related to the surrounding geologic structures. The orientation of the zone appears to be related to features below the Appalachian overthrust belt. A damaging earthquake that is important in evaluating seismic hazard in the southeastern United States may have occurred in the zone in 1897.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.219.4588.1063","issn":"00368075","usgsCitation":"Bollinger, G.A., and Wheeler, R.L., 1983, The Giles County, Virginia, seismic zone: Science, v. 219, no. 4588, p. 1063-1065, https://doi.org/10.1126/science.219.4588.1063.","productDescription":"3 p.","startPage":"1063","endPage":"1065","costCenters":[],"links":[{"id":221099,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Virginia","county":"Giles County","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-80.4761,37.4269],[-80.4506,37.3704],[-80.4417,37.3506],[-80.428,37.3194],[-80.4481,37.3088],[-80.4756,37.2905],[-80.4912,37.2822],[-80.5049,37.273],[-80.5147,37.2688],[-80.5302,37.2633],[-80.5551,37.2608],[-80.5787,37.2542],[-80.6075,37.2467],[-80.6219,37.2425],[-80.6724,37.2239],[-80.6828,37.2197],[-80.7051,37.209],[-80.7218,37.2039],[-80.7794,37.1888],[-80.804,37.1786],[-80.8286,37.1615],[-80.856,37.1476],[-80.8678,37.157],[-80.8824,37.1686],[-80.8624,37.1797],[-80.8725,37.1928],[-80.8947,37.1798],[-81.0099,37.2746],[-80.9785,37.294],[-80.9777,37.2934],[-80.9772,37.2932],[-80.9756,37.2931],[-80.9686,37.2927],[-80.9651,37.2932],[-80.9595,37.294],[-80.9566,37.2948],[-80.949,37.2971],[-80.9394,37.2999],[-80.9347,37.3015],[-80.9209,37.307],[-80.9111,37.3107],[-80.8985,37.3171],[-80.8916,37.3218],[-80.8859,37.3264],[-80.8813,37.33],[-80.8795,37.3312],[-80.8767,37.3332],[-80.8735,37.3352],[-80.8709,37.3368],[-80.8646,37.3401],[-80.8627,37.3411],[-80.859,37.3434],[-80.8544,37.3453],[-80.8516,37.3476],[-80.8504,37.3495],[-80.8532,37.3533],[-80.8705,37.371],[-80.8736,37.3737],[-80.8782,37.3777],[-80.8817,37.3817],[-80.8824,37.3848],[-80.8808,37.3889],[-80.8778,37.3926],[-80.8643,37.4096],[-80.8655,37.4132],[-80.8661,37.4159],[-80.8662,37.4184],[-80.8661,37.4189],[-80.8633,37.423],[-80.8627,37.4239],[-80.8575,37.4304],[-80.853,37.4278],[-80.8484,37.4256],[-80.8451,37.4257],[-80.842,37.4257],[-80.8367,37.4248],[-80.8321,37.4222],[-80.8244,37.4168],[-80.8157,37.4115],[-80.8097,37.4062],[-80.8051,37.4012],[-80.8021,37.3981],[-80.8004,37.3963],[-80.7986,37.3954],[-80.7968,37.395],[-80.7963,37.3948],[-80.7939,37.3946],[-80.7934,37.3945],[-80.7899,37.3945],[-80.7864,37.3936],[-80.7834,37.3923],[-80.7793,37.3878],[-80.7757,37.382],[-80.7709,37.3729],[-80.7629,37.3748],[-80.7531,37.3776],[-80.7507,37.3784],[-80.7423,37.3812],[-80.7307,37.3849],[-80.7248,37.3874],[-80.7198,37.3895],[-80.7052,37.3958],[-80.7048,37.396],[-80.684,37.4056],[-80.6696,37.4116],[-80.6518,37.4199],[-80.6363,37.4282],[-80.6276,37.4328],[-80.6219,37.4361],[-80.6176,37.4385],[-80.613,37.4404],[-80.6077,37.4427],[-80.6052,37.4439],[-80.603,37.445],[-80.5986,37.4473],[-80.5899,37.4523],[-80.5807,37.4583],[-80.5732,37.4628],[-80.5673,37.4661],[-80.5563,37.4707],[-80.55,37.4729],[-80.5407,37.4752],[-80.5309,37.4768],[-80.5182,37.4796],[-80.5156,37.48],[-80.5124,37.4806],[-80.5083,37.481],[-80.5054,37.4802],[-80.5026,37.4789],[-80.5002,37.4761],[-80.4984,37.473],[-80.4954,37.4666],[-80.4932,37.4596],[-80.4931,37.4528],[-80.4937,37.4487],[-80.4939,37.4467],[-80.4942,37.4446],[-80.4936,37.4419],[-80.4919,37.4396],[-80.4905,37.4379],[-80.4901,37.4374],[-80.4884,37.4356],[-80.486,37.4333],[-80.4831,37.4319],[-80.4802,37.4283],[-80.4761,37.4269]]]},\"properties\":{\"name\":\"Giles\",\"state\":\"VA\"}}]}","volume":"219","issue":"4588","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba758e4b08c986b3214f3","contributors":{"authors":[{"text":"Bollinger, G. A.","contributorId":55809,"corporation":false,"usgs":true,"family":"Bollinger","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":360634,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wheeler, R. L.","contributorId":34916,"corporation":false,"usgs":true,"family":"Wheeler","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":360633,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5222069,"text":"5222069 - 1983 - Temporal accumulation of organochlorine pesticides in shorebirds wintering on the south Texas coast, 1979-80","interactions":[],"lastModifiedDate":"2023-12-12T17:03:23.43892","indexId":"5222069","displayToPublicDate":"1983-03-01T12:19:15","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Temporal accumulation of organochlorine pesticides in shorebirds wintering on the south Texas coast, 1979-80","docAbstract":"<p><span>Organochlorine pesticide residues were determined in 168 shorebirds of three species collected at approximate bimonthly intervals during the fall and winter months of 1979–80 near Port Mansfield on the south Texas coast. The study was conducted to determine if shorebirds wintering on mudflats at the outlets of agricultural drains in Texas accumulated pesticides during this period. The predominant Organochlorine residues detected in shorebirds were DDE, dieldrin, and toxaphene. Ninety-five % of the skinned carcasses analyzed contained detectable levels of DDE, 13% contained dieldrin, and 22% contained toxaphene. DDE significantly increased in all species of shorebirds from October to December, with potentially dangerous levels accumulating in some long-billed dowitchers (</span><i>Limnodromus scolopaceus</i><span>) and American avocets (</span><i>Recurvirostra americana</i><span>), but DDE residues seldom exceeded 0.5 ppm in carcasses of western sandpipers (</span><i>Calidris mauri</i><span>). After about two months on the study area, no further residue increases were documented. The high levels of DDE detected in a large proportion of the dowitchers, and to a lesser extent in the avocets, are near or within the range known to inhibit reproduction in some avian species. This study demonstrates that certain aquatic areas near agricultural lands on the south Texas coast may be potential threats to waterbirds eight years after the use of DDT was banned in the United States.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/BF01059587","usgsCitation":"White, D.H., Mitchell, C.A., and Kaiser, T.E., 1983, Temporal accumulation of organochlorine pesticides in shorebirds wintering on the south Texas coast, 1979-80: Archives of Environmental Contamination and Toxicology, v. 12, no. 2, p. 241-245, https://doi.org/10.1007/BF01059587.","productDescription":"5 p.","startPage":"241","endPage":"245","numberOfPages":"5","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":197767,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -97.49160157419985,\n              26.576048278948377\n            ],\n            [\n              -97.49160157419985,\n              26.277932257567784\n            ],\n            [\n              -97.19624831300968,\n              26.277932257567784\n            ],\n            [\n              -97.19624831300968,\n              26.576048278948377\n            ],\n            [\n              -97.49160157419985,\n              26.576048278948377\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"12","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4adae4b07f02db685603","contributors":{"authors":[{"text":"White, Donald H.","contributorId":21728,"corporation":false,"usgs":true,"family":"White","given":"Donald","email":"","middleInitial":"H.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":335427,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mitchell, Christine A.","contributorId":35849,"corporation":false,"usgs":true,"family":"Mitchell","given":"Christine","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":335425,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kaiser, T. Earl","contributorId":84826,"corporation":false,"usgs":true,"family":"Kaiser","given":"T.","email":"","middleInitial":"Earl","affiliations":[],"preferred":false,"id":335426,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70120412,"text":"70120412 - 1983 - Platte River Forum for the Future: workshop model documentation","interactions":[],"lastModifiedDate":"2014-08-14T11:13:29","indexId":"70120412","displayToPublicDate":"1983-03-01T11:12:11","publicationYear":"1983","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"Platte River Forum for the Future: workshop model documentation","docAbstract":"<p>The Platte River Forum for the Future (PRFF) is an effort by the Nebraska Natural Resources Commission (NNRC) to bring together representatives of interests and agencies concerned with management of the Platte River and, assisted by various computer technologies, to reach some degree of agreement on the “best uses” of the remaining waters of the Platte. Simulation modeling is being used in this effort as a focal point for developing a common understanding of the behavior of the Platte River system, synthesizing existing information, identifying additional needed information, and analyzing the potential consequences of various management alternatives.</p>\n<br/>\n<p>The NNRC initiated the project in August 1982 by convening a workshop for interested parties in Grand Island, Nebraska. This workshop was devoted to construction of a preliminary simulation model describing the Platte River system. A group of facilitators/modelers from the U.S. Fish and Wildlife Service (FWS) assisted participants in translating their understanding of the Platte River into the framework of the model. In October 1982, FWS personnel began a process of training several people from Nebraska in the use of the model. At that time, minor revisions and corrections were made in the model and various development scenarios were prepared for discussion with participants at a second workshop, which was held in early November 1982.</p>\n<br/>\n<p>The purpose of this report is to document the status of the PRFF simulation model as of the end of the November 1982 meeting. We emphasize that the intent is not to describe a final product. Except for minor revisions and correction of obvious errors, the model described herein is that which existed at the end of the August workshop. The model contains the foundation for a comprehensive aid to decisionmakers, but at this time it is preliminary in nature, needing refinement and verification before it can be truly useful in analyzing management alternatives. The purpose of this report is to provide a solid foundation for that important future work.</p>\n<br/>\n<p>The report is divided into three basic parts. The first is a brief overview of the various components of the model and how they fit together. It is intended for those who are not particularly interested in the details of model formulation. The second is a detailed discussion of the logic, assumptions, equations, and data used in constructing the model. This detailed description is also referenced to specific sections of the third part, which is a set of appendices containing listings of the computer code as it presently exists.</p>","language":"English","publisher":"U.S. Fish and Wildlife Service, Western Energy and Land Use Team","publisherLocation":"Fort Collins, CO","usgsCitation":"U.S. Fish and Wildlife Service, Western Energy and Land Use Team, 1983, Platte River Forum for the Future: workshop model documentation, 251 p.","productDescription":"251 p.","numberOfPages":"251","costCenters":[],"links":[{"id":292184,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nebraska","otherGeospatial":"Platte River","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -100.6762,40.6541 ], [ -100.6762,41.4623 ], [ -95.8807,41.4623 ], [ -95.8807,40.6541 ], [ -100.6762,40.6541 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53edcd4ee4b0f61b386d243d"}
,{"id":70120405,"text":"70120405 - 1983 - Evaluating environmental and economic consequences of alternative pest management strategies: results of modeling workshops","interactions":[],"lastModifiedDate":"2014-08-14T10:47:29","indexId":"70120405","displayToPublicDate":"1983-03-01T10:32:03","publicationYear":"1983","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"Evaluating environmental and economic consequences of alternative pest management strategies: results of modeling workshops","docAbstract":"<p>The U.S. Environmental Protection Agency (EPA) needs a comprehensive method to evaluate the human health and environmental effects of alternative agricultural pest management strategies.  This project explored the utility of Adaptive Environmental Assessment (AEA) techniques for meeting this need.  The project objectives were to produce models for environmental impact analysis, improve communications, identify research needs and data requirements, and demonstrate a process for resolving conflicts.  The project was structured around the construction (in an initial 2 1/2-day workshop) and examination (in a second 2 1/2-day workshop) of a simulation model of a corn agroecosystem.</p>\n<br/.\n<p>The model conceptualized at the first workshop simulates the effect of corn agrecosystem decisions on crop production, economic returns, and environmental indicators.  The model is composed of five interacting submodels: 1) a Production Strategies submodel which makes decisions concerning tillage, planting, fertilizer and pesticide applications, and harvest; 2) a Hydrology/Chemical Transport submodel which represents soil hydrology, erosion, and concentrations of fertilizers and pesticides in the soil, runoff, surface waters, and percolation; 3) a Vegetation submodel which simulates growth of agricultural crops (corns and soybeans) and weeds; 4) a Pests submodel which calculates pest population levels and resulting crop damage; and 5) an Environmental Effects submodel which calculates indicators of potential fish kills, human health effects, and wildlife habitat.  The most persistent data gaps encountered in quantifying the model were coefficients to relate environmental consequences to alternative pest management strategies.</p>\n<br/>\n<p>While the model developed in the project is not yet accurate enough to be used for real-world decisions about the use of pesticides on corn, it does contain the basic structure upon which such a model could be built.  More importantly at this stage of development, the project has shown that very complex systems can be modeled in short periods of time and that the process of building such models increases understanding among disciplinary specialists and between diverse institutional interests.  This process can be useful to EPA as the agency cooperates with other institutions to meet its responsibilities in less costly ways.</p>\n<br/>\n<p>Activities at the second 2 1/2-day workshop included a review of the model, incorporation of necessary corrections, simulation of policy scenarios, and examination of techniques to address remaining institutional conflicts.  Participants were divided into three groups representing environmental, production or industry, and regulatory interests.  Each group developed scenarios that would be most appealing to their particular interest and the scenarios were simulated by the agroecosystem computer model.  Negotiators from each of the interest groups decided whether a hypothetical herbicide should be relabeled and if certain restrictions should be imposed on its use.  Other participants functioned as experts and consultants on caucus teams.  A solution to the hypothetical problem was successfully negotiated.</p>\n<br/>\n<p>Workshop participants and project staff agreed that the model and processes developed during the project should be used in training students, extension specialists, farmers, researchers, and chemical producers in collaborative problem solving methods.  More productive research can be planned, and more realistic models of complex systems can be built in this way.  More importantly, greater trust of decisionmakers in computer models, better understanding by technical experts about disciplines other than their own, and improved cooperation between institutional interests can be achieved.  This trust, understanding, and cooperation are critical ingredients in solving problems that are too complex to be resolved by independent disciplinary activity and unilateral decision authority.</p>","language":"English","publisher":"U.S. Fish and Wildlife Service, Western Energy and Land Use Team","publisherLocation":"Fort Collins, CO","usgsCitation":"Johnson, R.L., Andrews, A.K., Auble, G.T., Ellison, R.A., Hamilton, D.B., Roelle, J.E., and McNamee, P.J., 1983, Evaluating environmental and economic consequences of alternative pest management strategies: results of modeling workshops, 38 p.","productDescription":"38 p.","numberOfPages":"38","costCenters":[],"links":[{"id":292177,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53edcd4ae4b0f61b386d23e5","contributors":{"authors":[{"text":"Johnson, Richard L.","contributorId":32626,"corporation":false,"usgs":true,"family":"Johnson","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":498160,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Andrews, Austin K.","contributorId":85516,"corporation":false,"usgs":true,"family":"Andrews","given":"Austin","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":498162,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Auble, Gregor T.L.","contributorId":43681,"corporation":false,"usgs":true,"family":"Auble","given":"Gregor","email":"","middleInitial":"T.L.","affiliations":[],"preferred":false,"id":498161,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ellison, Richard A.","contributorId":19087,"corporation":false,"usgs":true,"family":"Ellison","given":"Richard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":498159,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hamilton, David B. hamiltond@usgs.gov","contributorId":193,"corporation":false,"usgs":true,"family":"Hamilton","given":"David","email":"hamiltond@usgs.gov","middleInitial":"B.","affiliations":[],"preferred":true,"id":498156,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Roelle, James E. roelleb@usgs.gov","contributorId":2330,"corporation":false,"usgs":true,"family":"Roelle","given":"James","email":"roelleb@usgs.gov","middleInitial":"E.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":498157,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McNamee, Peter J.","contributorId":16760,"corporation":false,"usgs":true,"family":"McNamee","given":"Peter","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":498158,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70011276,"text":"70011276 - 1983 - Groundwater observation network design for the Kansas groundwater management districts, U.S.A.","interactions":[],"lastModifiedDate":"2025-04-11T16:18:41.907517","indexId":"70011276","displayToPublicDate":"1983-03-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Groundwater observation network design for the Kansas groundwater management districts, U.S.A.","docAbstract":"<p><span>Concerns about the efficiency and economic soundness of the Kansas groundwater monitoring program led to a systematic redesign of this network, a tentative phase of which is presented in this study. The objectives of this paper include monitoring of major aquifers within each groundwater management district at a spatially more uniform level of accuracy, elimination of redundant measurements and optimization of the information gained from each observation well. The theory of regionalized variables is employed to estimate the amount of spatial variability of the water table, on which the network design is based. This study shows that it is not practical to attempt to reduce the already existing level of uncertainty uniformly throughout the various districts; to do so would tremendously increase the cost of well monitoring, which is already very high. Assuming that the currently existing network is satisfactory for the State's objectives, a reduced network consisting of one well every 6.4 km is equally satisfactory. The reduced network yields district-wide maps that do not differ significantly from those produced using the present network and at the same time it reduces the already-existing network by 18–47%. Therefore, adoption of a rearranged square well network is recommended, which is reduced to a 6.4-km spacing to achieve both a uniform level of information about the water table and a minimum required accuracy.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0022-1694(83)90002-1","issn":"00221694","usgsCitation":"Sophocleous, M., 1983, Groundwater observation network design for the Kansas groundwater management districts, U.S.A.: Journal of Hydrology, v. 61, no. 4, p. 371-389, https://doi.org/10.1016/0022-1694(83)90002-1.","productDescription":"19 p.","startPage":"371","endPage":"389","costCenters":[],"links":[{"id":220969,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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,{"id":1003096,"text":"1003096 - 1983 - Distribution of larval fishes related to potential navigation impacts on the upper Mississippi River, pool 7","interactions":[],"lastModifiedDate":"2026-04-10T16:38:13.156073","indexId":"1003096","displayToPublicDate":"1983-03-01T00:00:00","publicationYear":"1983","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":"Distribution of larval fishes related to potential navigation impacts on the upper Mississippi River, pool 7","docAbstract":"<p><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\"><span>Ichthyoplankton samples were collected twice monthly during spring and summer 1981 from a variety of habitats in Navigation Pool 7 of the upper Mississippi River. Larval‐fish distributions in the pool and variations in those distributions were analyzed relative to potential impacts of increased commercial navigation. Although as many as 66 species of adults have been found in the area (33 considered common), only 17 taxa were identified from our collections. In April and May, most larvae were collected in main‐channel and main‐channel‐border areas next to major expanses of shallow backwaters. White bass Morone chrysops, yellow perch Perca flavescens, and crappies Pomoxis spp. were predominant. Numerous catostomids also were taken. In June and July, most larvae were taken in the lower pool. Freshwater drum Aplodinotus grunniens and gizzard shad Dorosoma cepedianum predominated in these samples, which also included many cyprinids and centrarchids. Diel patterns of abundance varied with species and sampling location. Freshwater drums were more abundant near the surface at midnight than during the day. Common carp Cyprinus carpio were most abundant in collections at dusk, whereas all other cyprinids were most abundant at dusk and dawn. Numbers of gizzard shad also increased slightly at dusk. Total numbers of larvae collected were greatest at dusk in main‐channel and main‐channel‐border samples; backwater areas produced the greatest catches at midnight and dawn. Seasonal, spatial, diel, and species‐specific variations in larval fish abundances significantly influenced the proportion of the community potentially vulnerable to increased boat traffic through Pool 7.</span></span></p>","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1983)112<293:DOLFRT>2.0.CO;2","usgsCitation":"Holland, L.E., and Sylvester, J., 1983, Distribution of larval fishes related to potential navigation impacts on the upper Mississippi River, pool 7: Transactions of the American Fisheries Society, v. 112, no. 2b, p. 293-301, https://doi.org/10.1577/1548-8659(1983)112<293:DOLFRT>2.0.CO;2.","productDescription":"9 p.","startPage":"293","endPage":"301","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":134490,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"upper Mississippi River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -92.92004535993226,\n              44.99687380497292\n            ],\n            [\n              -90.79146526297228,\n              41.82007926884964\n            ],\n            [\n              -91.57946666962061,\n              40.74634299625933\n            ],\n            [\n              -91.5819487416074,\n              39.73860346909468\n            ],\n            [\n              -89.4247105077819,\n              36.43482663374351\n            ],\n            [\n              -89.02477297503157,\n              36.69940171446078\n            ],\n            [\n              -90.72503627561406,\n              40.08698553320538\n            ],\n            [\n              -90.70014192661544,\n              40.61261371918002\n            ],\n            [\n              -89.78323289588835,\n              42.06896573901448\n            ],\n            [\n              -91.84460959802443,\n              45.05608914566284\n            ],\n            [\n              -92.92004535993226,\n              44.99687380497292\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"112","issue":"2b","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a6fe4b07f02db640cbc","contributors":{"authors":[{"text":"Holland, L. E.","contributorId":104853,"corporation":false,"usgs":true,"family":"Holland","given":"L.","middleInitial":"E.","affiliations":[],"preferred":false,"id":312747,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sylvester, J.R.","contributorId":95857,"corporation":false,"usgs":true,"family":"Sylvester","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":312746,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70208678,"text":"70208678 - 1983 - Upper Cenozoic silicoflagellates from offshore Ecuador, Deep Sea Drilling Project Site 504","interactions":[],"lastModifiedDate":"2020-02-24T14:15:18","indexId":"70208678","displayToPublicDate":"1983-02-24T14:06:18","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1996,"text":"Initial Reports of the D.S.D.P.","active":true,"publicationSubtype":{"id":10}},"title":"Upper Cenozoic silicoflagellates from offshore Ecuador, Deep Sea Drilling Project Site 504","docAbstract":"<p>Diverse and abundant late Miocene to Pleistocene silicoflagellates at DSDP Site 504 can be correlated by tropical biostratigraphic zones and relative paleotemperature values to eastern tropical Pacific reference site DSDP 503A farther to the west. Early Pliocene assemblages, which were poorly known until now, are present and can be correlated locally between DSDP Holes 504, 503A, and 495, using species events associated with the new Dictyocha pulchella Subzone and Dictyocha angulata Subzone. Silicoflagellate relative paleotemperature values show major warming at 4.7 to 5.0 Ma (Cores 45-48), 3.4 to 3.8 Ma (Cores 32-33), 1.5 to 1.7 Ma (Cores 12-16), and 0.5 to 0.8 Ma (Cores 3-6). Major coolings occurred at 5.0 to 5.1 Ma (Core 51), 3.9 to 4.4 Ma (Cores 38-44), and 1.0 to 1.3 Ma (Cores 8-10). The appearance of Dictyocha longa is proposed to replace the asperoid/fibuloid ratio reversal as the bottom of the Dictyocha fibula Zone, because the non-evolutionary ratio reverses several times in the upper Miocene of Hole 5O3A, and at least once in Hole 504. Three new Pliocene silicoflagellates are defined: Dictyocha concinna Bukry, n. sp., D. helix Bukry, n. sp., and D. tamarae Bukry, n. sp.</p>","language":"English","publisher":"Texas A&M","doi":"10.2973/dsdp.proc.69.113.1983","usgsCitation":"Bukry, D., 1983, Upper Cenozoic silicoflagellates from offshore Ecuador, Deep Sea Drilling Project Site 504: Initial Reports of the D.S.D.P., v. 69, p. 321-342, https://doi.org/10.2973/dsdp.proc.69.113.1983.","productDescription":"22 p.","startPage":"321","endPage":"342","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":488898,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2973/dsdp.proc.69.113.1983","text":"Publisher Index Page"},{"id":372573,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bukry, David 0000-0003-4540-890X dbukry@usgs.gov","orcid":"https://orcid.org/0000-0003-4540-890X","contributorId":3550,"corporation":false,"usgs":true,"family":"Bukry","given":"David","email":"dbukry@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":782973,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70208370,"text":"70208370 - 1983 - Pressure core barrel; application to the study of gas hydrates, Deep Sea Drilling Project Site 533, Leg 76","interactions":[],"lastModifiedDate":"2020-02-05T13:31:31","indexId":"70208370","displayToPublicDate":"1983-02-05T13:17:53","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1996,"text":"Initial Reports of the D.S.D.P.","active":true,"publicationSubtype":{"id":10}},"title":"Pressure core barrel; application to the study of gas hydrates, Deep Sea Drilling Project Site 533, Leg 76","docAbstract":"<p>A pressure core barrel (PCB), developed by the Deep Sea Drilling Project, was used successfully to recover, at in situ pressure, sediments of the Blake Outer Ridge, offshore the southeastern United States. The PCB is a unique, wire-line tool, 10.4 m long, capable of recovering 5.8 m of core (5.8 cm in diameter), maintained at or below in situ pressures of 34.4 million Pascals (MPa), and 1.8 m of unpressurized core (5.8 cm in diameter). All excess internal pressure above the operating pressure of 34.4 MPa is automatically vented off as the barrel is retrieved. The PCB was deployed five times at DSDP Site 533 where geophysical evidence suggests the presence of gas hydrates in the upper 600 m of sediment. Three cores were obtained holding average in situ pressures of 30 MPa. Two other cores did not maintain in situ pressures. Three of the five cores were intermittently degassed at varying intervals of time, and portions of the vented gas were collected for analysis. Pressure decline followed paths indicative of gas hydrates and/or dissolved gas. The released gas was dominantly methane (usually greater than 90%), along with higher molecular-weight hydrocarbon gases and carbon dioxide. During degassing the ratio of methane to ethane did not vary significantly. On the other hand, concentrations of higher molecular-weight hydrocarbon gases increased, as did carbon dioxide concentrations. The results from the PCB experiments provide tentative but equivocal evidence for the presence of .gas hydrates at Site 533. The amount of gas hydrate indicated is small. Nevertheless, this work represents the first successful study of marine gas hydrates utilizing the PCB.</p>","language":"English","publisher":"Texas A&M","doi":"10.2973/dsdp.proc.76.107.1983","usgsCitation":"Kvenvolden, K.A., and Cameron, D., 1983, Pressure core barrel; application to the study of gas hydrates, Deep Sea Drilling Project Site 533, Leg 76: Initial Reports of the D.S.D.P., v. 76, p. 367-375, https://doi.org/10.2973/dsdp.proc.76.107.1983.","productDescription":"9 p.","startPage":"367","endPage":"375","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":488885,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2973/dsdp.proc.76.107.1983","text":"Publisher Index Page"},{"id":372076,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"76","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Kvenvolden, Keith A. kkvenvolden@usgs.gov","contributorId":3384,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"Keith","email":"kkvenvolden@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":781634,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cameron, D.","contributorId":95018,"corporation":false,"usgs":true,"family":"Cameron","given":"D.","affiliations":[],"preferred":false,"id":781635,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}