{"pageNumber":"1539","pageRowStart":"38450","pageSize":"25","recordCount":41032,"records":[{"id":70011892,"text":"70011892 - 1982 - Lead and strontium isotopes and related trace elements as genetic tracers in the Upper Cenozoic rhyolite-basalt association of the Yellowstone Plateau volcanic field","interactions":[],"lastModifiedDate":"2024-07-16T14:46:02.2975","indexId":"70011892","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":6453,"text":"Journal of Geophysical Research Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Lead and strontium isotopes and related trace elements as genetic tracers in the Upper Cenozoic rhyolite-basalt association of the Yellowstone Plateau volcanic field","docAbstract":"Supported by various field geologic and petrologic data, the contents of Pb, U, Th, Rb, and Sr and the isotopic compositions of Pb and Sr for upper Cenozoic volcanic rocks of the Yellowstone Plateau volcanic field are consistent with the hypothesis of derivation of the basaltic and rhyolitic magmas by partial melting of distinct source regions in the upper mantle and lower crust, respectively. All the basalt samples analyzed but one have systematically lower values of 207Pb/204Pb and 87Sr/86Sr than the rhyolites. The values of 206Pb/204Pb are smaller, and 87Sr/86Sr are mostly larger than known values in oceanic basalts. In all but one case, the values of 207Pb/204Pb are higher than expected from an extrapolation of known values in oceanic basalts to less radiogenic values of 206Pb/204Pb. Because there are no xenoliths, phenocrysts are only moderate to sparse in abundance, REE patterns are low and flat at the radiogenic end of lead isotopic compositions, several values of Rb/Sr are low, and 80% of the basalt samples form a well-developed secondary isochron separate from the rhyolites, we favor an interpretation for basalt genesis wherein isotopic signatures of most mafic magmas were attained in a continental ‘keel’ of mantlelike character about 2.6 b.y. old or somewhat older attached to the crust, and these signatures were unaltered by magma passage through the crust. At the very least, the current data continue to cast serious doubt as to the inevitability of crustal contamination for basaltic magma intruding the continental environment and postulate that much can be learned about the mantle under continents through the study of continental basalts. One basalt unit with an unusually low value of 207Pb/204Pb and an 87Ar/86Ar less than 0.704 may represent subcontinental ‘keel’-derived magma that rose unaltered to the surface. Our data also are not consistent with formation of this rhyolite-basalt association primarily by such processes as crystal fractionation, separation of immiscible silicate liquids from a common parental magma, or fractional melting of a homogeneous source. Rather as a conceptual model, we envision large mafic intrusions to have been injected into the lower crust resulting in rhyolite generation through partial anatexis of the adjacent wall rocks which probably had a 206Pb/204Pb < 17 and 87Sr/86Sr > 0.709; a model that has much in common with that proposed by Holmes (1931). All the other hypotheses listed have the necessary added complication that either the basalt or the rhyolite or both become contaminated after the two magma types separated, have problems accounting for the lack of igneous rocks of intermediate compositions or production of such large volumes of rhyolitic material (∼5000 km3), and fail to explain why rhyolitic magma is not a more common occurrence in the ocean basin. We appeal to bouyancy of rhyolites to generate a barrier for basalt magma migration and account for the great preponderance of rhyolite relative to basalt at the surface. Furthermore, the complex isotopic picture in the rhyolites indicates that many of these magmas interacted with the upper crustal geologic units that they traversed. The interactions involved diverse processes, probably including reacton with hydrothermal fluids or hydrothermally altered rocks at high levels as well as by contamination with Phanerozoic sedimentary and Precambrian crystalline rocks at deeper levels. At the very least, we feel our study adds a cautionary note to the currently increasingly popular hypothesis that differentiation of basalt or gabbro magmas to rhyolite or granite (as distinct from tonalite or dacite) is a common occurrence and is therefore an important continential building process. Models for formation of rhyolite and granite predominantly by reworking of crust (anatexis) must still be considered. The primitive Archean mantle of the region was characterized by higher Rb/Sr, U/Pb, and Th/U values than are typical of modern suboceanic mantle. The mantle residuum within the continental subcrustal lithosperic ‘keel’ that resulted from the Archean crustal differentiation event probably was depleted in Rb/Sr and U/Pb, and the crust was correspondingly enriched in these ratios. The crust probably was further differentiated by an Archean high-grade metamorphism, during or after the primary event, into a granulitic lower crust depleted in U/Pb and Rb/Sr and a lower-grade upper crust enriched in these ratios.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB087iB06p04785","issn":"01480227","usgsCitation":"Doe, B.R., Leeman, W., Christiansen, R., and Hedge, C., 1982, Lead and strontium isotopes and related trace elements as genetic tracers in the Upper Cenozoic rhyolite-basalt association of the Yellowstone Plateau volcanic field: Journal of Geophysical Research Solid Earth, v. 87, no. B6, p. 4785-4806, https://doi.org/10.1029/JB087iB06p04785.","productDescription":"22 p.","startPage":"4785","endPage":"4806","numberOfPages":"22","costCenters":[],"links":[{"id":221323,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"87","issue":"B6","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a45ade4b0c8380cd67474","contributors":{"authors":[{"text":"Doe, B. R.","contributorId":52173,"corporation":false,"usgs":true,"family":"Doe","given":"B.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":362227,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leeman, W.P.","contributorId":7841,"corporation":false,"usgs":true,"family":"Leeman","given":"W.P.","affiliations":[],"preferred":false,"id":362225,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Christiansen, R.L. 0000-0002-8017-3918","orcid":"https://orcid.org/0000-0002-8017-3918","contributorId":25565,"corporation":false,"usgs":true,"family":"Christiansen","given":"R.L.","affiliations":[],"preferred":false,"id":362226,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hedge, C. E.","contributorId":73611,"corporation":false,"usgs":true,"family":"Hedge","given":"C. E.","affiliations":[],"preferred":false,"id":362228,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70011657,"text":"70011657 - 1982 - A Proposed Model for the International Geomagnetic Reference Field-1965","interactions":[],"lastModifiedDate":"2024-04-25T11:07:29.291922","indexId":"70011657","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2310,"text":"Journal of Geomagnetism & Geoelectricity","active":true,"publicationSubtype":{"id":10}},"title":"A Proposed Model for the International Geomagnetic Reference Field-1965","docAbstract":"A best current model of the main geomagnetic field is presented as a response to a need for an “International Geomagnetic Reference Field”. This model is described by a series of 120 spherical harmonic coefficients and their first and second time derivatives from an epoch 1960.0. It was derived from a sample of all magnetic survey data available from the interval 1900-1964 plus a recent global distribution of preliminary total field observations from the OGO-2 (1965-81A) spacecraft for epoch 1965.8. A duplicate data selection was made and the resulting field model compared with the first to help evaluate the minimum error. It was noted that the root —mean—square difference between the two models was about 30γ in the force components, 0.04 degrees in dip and 0.3 degrees in declination at the earth's surface for 1965.0.
","language":"English","publisher":"J-STAGE","doi":"10.5636/jgg.19.335","usgsCitation":"Peddie, N., and Fabiano, E., 1982, A Proposed Model for the International Geomagnetic Reference Field-1965: Journal of Geomagnetism & Geoelectricity, v. 34, no. 6, p. 357-364, https://doi.org/10.5636/jgg.19.335.","productDescription":"8 p.","startPage":"357","endPage":"364","numberOfPages":"8","costCenters":[],"links":[{"id":480260,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5636/jgg.19.335","text":"Publisher Index Page"},{"id":221537,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e514e4b0c8380cd46af3","contributors":{"authors":[{"text":"Peddie, N.W.","contributorId":75911,"corporation":false,"usgs":true,"family":"Peddie","given":"N.W.","affiliations":[],"preferred":false,"id":361631,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fabiano, E.B.","contributorId":32251,"corporation":false,"usgs":true,"family":"Fabiano","given":"E.B.","email":"","affiliations":[],"preferred":false,"id":361630,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70011505,"text":"70011505 - 1982 - The effect of natural weathering on the chemical and isotopic compositions of biotites","interactions":[],"lastModifiedDate":"2024-03-18T14:40:15.488216","indexId":"70011505","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"The effect of natural weathering on the chemical and isotopic compositions of biotites","docAbstract":"The effect of progressive natural weathering on the isotopic (Rb-Sr, K-Ar, δD, δ18O) and chemical (REE, H2O+) compositions of biotite has been studied on a suite of migmatitic biotites from the Chad Republic. During the early stages of weathering the Rb-Sr system is strongly affected, the hydrogen and oxygen isotope compositions change markedly, the minerals are depleted in light REE, the water content increases by a factor of two, and the K-Ar system is relatively little disturbed. During intensive weathering the K-Ar system is more strongly disturbed than the Rb-Sr system.
Most of the isotopic and chemical modifications take place under nonequilibrium conditions and occur before newly formed kaolinite and/or smectite can be detected. These observations suggest that
- 1.
(a) “protominerals” may form within the biotite structure during the initial period of weathering, and
- 2.
(b) only when chemical equilibrium is approached in the weathering profile are new minerals able to form.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(82)90115-6","issn":"00167037","usgsCitation":"Clauer, N., O’Neil, J.R., and Bonnot-Courtois, C., 1982, The effect of natural weathering on the chemical and isotopic compositions of biotites: Geochimica et Cosmochimica Acta, v. 46, no. 10, p. 1755-1762, https://doi.org/10.1016/0016-7037(82)90115-6.","productDescription":"8 p.","startPage":"1755","endPage":"1762","numberOfPages":"8","costCenters":[],"links":[{"id":221292,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bab39e4b08c986b322cdb","contributors":{"authors":[{"text":"Clauer, Norbert","contributorId":79664,"corporation":false,"usgs":false,"family":"Clauer","given":"Norbert","email":"","affiliations":[],"preferred":false,"id":361282,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Neil, J. R.","contributorId":69633,"corporation":false,"usgs":true,"family":"O’Neil","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":361281,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bonnot-Courtois, C.","contributorId":90175,"corporation":false,"usgs":true,"family":"Bonnot-Courtois","given":"C.","email":"","affiliations":[],"preferred":false,"id":361283,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70011513,"text":"70011513 - 1982 - Incorporation of prior information on parameters into nonlinear regression groundwater flow models: 1. Theory","interactions":[],"lastModifiedDate":"2018-02-05T13:18:02","indexId":"70011513","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Incorporation of prior information on parameters into nonlinear regression groundwater flow models: 1. Theory","docAbstract":"Prior information on the parameters of a groundwater flow model can be used to improve parameter estimates obtained from nonlinear regression solution of a modeling problem. Two scales of prior information can be available: (1) prior information having known reliability (that is, bias and random error structure) and (2) prior information consisting of best available estimates of unknown reliability. A regression method that incorporates the second scale of prior information assumes the prior information to be fixed for any particular analysis to produce improved, although biased, parameter estimates. Approximate optimization of two auxiliary parameters of the formulation is used to help minimize the bias, which is almost always much smaller than that resulting from standard ridge regression. It is shown that if both scales of prior information are available, then a combined regression analysis may be made.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR018i004p00965","usgsCitation":"Cooley, R.L., 1982, Incorporation of prior information on parameters into nonlinear regression groundwater flow models: 1. Theory: Water Resources Research, v. 18, no. 4, p. 965-976, https://doi.org/10.1029/WR018i004p00965.","productDescription":"12 p.","startPage":"965","endPage":"976","costCenters":[],"links":[{"id":221372,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505a39f0e4b0c8380cd61aba","contributors":{"authors":[{"text":"Cooley, Richard L.","contributorId":8831,"corporation":false,"usgs":true,"family":"Cooley","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":361298,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70011525,"text":"70011525 - 1982 - Differential compaction mechanism for earth fissures near Casa Grande, Arizona","interactions":[],"lastModifiedDate":"2024-01-04T01:41:57.860655","indexId":"70011525","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Differential compaction mechanism for earth fissures near Casa Grande, Arizona","docAbstract":"Precise gravity measurements indicate that earth fissures or tension cracks caused by ground-water withdrawal within a 10-km2 area southeast of Casa Grande, Arizona, are associated with relief on the buried interface between the alluvial aquifer and underlying bedrock. All of the fissure zones; which have a cumulative length of >8.7 km, occur above either ridges or steps in the bedrock surface. Intersecting fissure zones overlie intersecting bedrock features, and the angle of intersection of the zones accurately reflects the angle between the bedrock features. These relations suggest that the fissures are forming in response to localized differential compaction caused by localized variations of aquifer-system thickness. Topographic profiles across fissures on undisturbed desert floor confirm differential compaction proportional to the variations in aquifer thickness. The occurrence of the fissures at points of maximum convex-upward curvature in profiles of both the topographic and buried bedrock surfaces indicates that the fissures result from tensile strains caused by bending of the strata above the buried bedrock features in response to the differential compaction. Tensile strains at failure are estimated to range from ∼ 0.02% to 0.2% on the basis of modeling of the bending process.
U, Th, and Pb analyses of whole-rock and troilite separates from seven L chondrites suggest that the excess radiogenic Pb relative to U and the large variations in Pb![\"single](\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\")
Pb model ages commonly observed in chondritic meteorites are largely due to terrestrial Pb contamination induced prior to analyses. Using the Pb isotopic composition of troilite separates to calculate the isotopic composition of the Pb contaminants, the whole-rock data have been corrected for pre-analysis terrestrial Pb contamination. Two approaches have been used: (1) the chondrite-troilite apparent initial Pb isotopic compositions were used to approximate the mixture of indigenous intial Pb and terrestrial Pb in the whole-rock sample, and (2) a single-stage (concordant) model was applied using the assumption that the excess radiogenic Pb in these samples was terrestrial. Data for L5 and L6 chondrites yield a4551 ± 7My age using the former correction and a4550 ± 5My age using the latter one.
","language":"English","publisher":"Elsevier","doi":"10.1016/0012-821X(82)90104-2","issn":"0012821X","usgsCitation":"Unruh, D., 1982, The UThPb age of equilibrated L chondrites and a solution to the excess radiogenic Pb problem in chondrites: Earth and Planetary Science Letters, v. 58, no. 1, p. 75-94, https://doi.org/10.1016/0012-821X(82)90104-2.","productDescription":"20 p.","startPage":"75","endPage":"94","numberOfPages":"20","costCenters":[],"links":[{"id":221781,"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":"505ba955e4b08c986b3221ce","contributors":{"authors":[{"text":"Unruh, D.M.","contributorId":8498,"corporation":false,"usgs":true,"family":"Unruh","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":362275,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70011651,"text":"70011651 - 1982 - Stratigraphic reference section for Georges Bank Basin - Depositional model for New England passive margin.","interactions":[],"lastModifiedDate":"2023-01-11T15:45:15.430432","indexId":"70011651","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Stratigraphic reference section for Georges Bank Basin - Depositional model for New England passive margin.","docAbstract":"A multichannel seismic reflection profile (U.S. Geological Survey line 19), calibrated with the COST G-1, COST G-2, and Shell Mohican I-100 wells, and seismic-sequence analysis shows that the chronostratigraphic and lithostratigraphic units and depositional history of the Georges Bank basin are similar to those of the Scotian basin. Carbonate rocks of the Iroquois and Abenaki Formations, as much as 16,000 ft (4,800 m) thick, dominated the eastern half of the Georges Bank basin during the Jurassic. As much as 7,500 ft (2,300 m) of the coeval terrigenous clastic deposits of the Mohican, Mohawk, and Mic Mac Formations accumulated updip (westward) in sublittoral, paralic, and nonmarine environments. Siliciclastic deposition, as much as 6,000 ft (1,800 m), dominated the entire basin throughout the Cretaceous and Cenozoic, and it was punctuated briefly by carbonate deposition during the Hauterivian and Paleogene. Tentative correlation between the Georges Bank basin sequences and those of the adjacent, deep North American basin suggests that the deep-sea facies were strongly influenced by depositional events on the shelf. Deposition in both areas has been sensitive to changes in sea level and to paleoclimatic cycles.
","language":"English","publisher":"American Association of Petroleum Geologists","doi":"10.1306/03B5A633-16D1-11D7-8645000102C1865D","usgsCitation":"Poag, C.W., 1982, Stratigraphic reference section for Georges Bank Basin - Depositional model for New England passive margin.: American Association of Petroleum Geologists Bulletin, v. 66, no. 8, p. 1021-1041, https://doi.org/10.1306/03B5A633-16D1-11D7-8645000102C1865D.","productDescription":"21 p.","startPage":"1021","endPage":"1041","numberOfPages":"21","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":221455,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Atlantic Ocean, Georges Bank","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -68.20863484886625,\n 42.04918841749222\n ],\n [\n -68.20863484886625,\n 40.47051861193097\n ],\n [\n -65.81281728784933,\n 40.47051861193097\n ],\n [\n -65.81281728784933,\n 42.04918841749222\n ],\n [\n -68.20863484886625,\n 42.04918841749222\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"66","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b991fe4b08c986b31c26e","contributors":{"authors":[{"text":"Poag, C. Wylie 0000-0002-6240-4065 wpoag@usgs.gov","orcid":"https://orcid.org/0000-0002-6240-4065","contributorId":2565,"corporation":false,"usgs":true,"family":"Poag","given":"C.","email":"wpoag@usgs.gov","middleInitial":"Wylie","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":361622,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70011811,"text":"70011811 - 1982 - Seasonal growth in the bivalve Macoma balthica near the southern limit of its range","interactions":[],"lastModifiedDate":"2020-09-02T17:41:34.917836","indexId":"70011811","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1583,"text":"Estuaries","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal growth in the bivalve Macoma balthica near the southern limit of its range","docAbstract":"Shell-length growth in Macoma balthica from San Francisco Bay, California, as measured on living animals in situ, is highly seasonal despite a mild Mediterranean climate: a long period of near non-growth from May to the following February is followed by a short period of rapid growth between March and May. The rapid-growth period follows the spawning period during January/February and ends as water temperature rises above about 15??C. Despite the shortness of the growth period, M. balthica grows larger at a given age in San Francisco Bay than is recorded elsewhere in the world. Application of a model, developed elsewhere from these same field measurements, shows that (1) measurable growth occurs during the summer/autumn/early winter \"nongrowth\" period, (2) there is an autumn recruitment, and (3) both spring and autumn recruits combine to form a single \"one-year-old\" size grouping. None of these features is detectable through growth-ring analysis of field samples, apparently because of indistinct climatic seasons, or through size-frequency histogram analysis because of the combined effects of slow growth and intermittent recruitment. ?? 1982 Estuarine Research Federation.
","language":"English","publisher":"Springer-Verlag","doi":"10.2307/1352108","issn":"15592723","usgsCitation":"Nichols, F., and Thompson, J., 1982, Seasonal growth in the bivalve Macoma balthica near the southern limit of its range: Estuaries, v. 5, no. 2, p. 110-120, https://doi.org/10.2307/1352108.","startPage":"110","endPage":"120","numberOfPages":"11","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":221132,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b88ace4b08c986b316ac9","contributors":{"authors":[{"text":"Nichols, F.H.","contributorId":88020,"corporation":false,"usgs":true,"family":"Nichols","given":"F.H.","affiliations":[],"preferred":false,"id":362012,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thompson, J.K.","contributorId":103300,"corporation":false,"usgs":true,"family":"Thompson","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":362013,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70011792,"text":"70011792 - 1982 - The solubility of quartz in aqueous sodium chloride solution at 350°C and 180 to 500 bars","interactions":[],"lastModifiedDate":"2015-06-05T14:13:41","indexId":"70011792","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"The solubility of quartz in aqueous sodium chloride solution at 350°C and 180 to 500 bars","docAbstract":"The solubility of quartz in 2, 3, and 4 molal NaCl was measured at 350°C and pressures ranging from 180 to 500 bars. The molal solubility in each of the salt solutions is greater than that in pure water throughout the measured pressure range, with the ratio of solubility in NaCl solution to solubility in pure water decreasing as pressure is increased. The measured solubilities are significantly higher than solubilities calculated using a simple model in which the water activity in NaCl solutions decreases either in proportion to decreasing vapor pressure of the solution as salinity is increased or in proportion to decreasing mole fraction of water in the solvent.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(82)90136-3","issn":"00167037","usgsCitation":"Fournier, R.O., Rosenbauer, R.J., and Bischoff, J.L., 1982, The solubility of quartz in aqueous sodium chloride solution at 350°C and 180 to 500 bars: Geochimica et Cosmochimica Acta, v. 46, no. 10, p. 1975-1978, https://doi.org/10.1016/0016-7037(82)90136-3.","productDescription":"4 p.","startPage":"1975","endPage":"1978","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":220791,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb042e4b08c986b324d3a","contributors":{"authors":[{"text":"Fournier, Robert O.","contributorId":73202,"corporation":false,"usgs":true,"family":"Fournier","given":"Robert","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":361969,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosenbauer, Robert J. brosenbauer@usgs.gov","contributorId":204,"corporation":false,"usgs":true,"family":"Rosenbauer","given":"Robert","email":"brosenbauer@usgs.gov","middleInitial":"J.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":361968,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bischoff, James L. jbischoff@usgs.gov","contributorId":1389,"corporation":false,"usgs":true,"family":"Bischoff","given":"James","email":"jbischoff@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":361967,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70011816,"text":"70011816 - 1982 - Sources, sinks and storage of river sediments in the Atlantic drainage of the United States","interactions":[],"lastModifiedDate":"2024-04-26T16:45:34.641676","indexId":"70011816","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"Sources, sinks and storage of river sediments in the Atlantic drainage of the United States","docAbstract":"The history of sediment and its movement in the Atlantic drainage demonstrate some of the difficulties of modeling sediment on a river-basin scale. Soil erosion was accelerated by a factor of at least 10 when European settlers cleared forests and planted crops. Although increasing soil-conservation practice and decreasing crop farming have since reduced the rates of erosion, large quantities of eroded material are still stored on hillslopes and in stream valleys where they continue to augment the sediment loads of the rivers. The sediment from this episode of erosion that is largely past can be expected to emerge from storage for many decades and perhaps even several centuries to come. The reservoirs that have been built on many of the major rivers trap significant portions of the moving sediment which, in some places, may be remobilized by large floods. Essentially all the river sediment that reaches the Atlantic coastal zone is trapped in estuaries and coastal marshlands. Probably less than 5% is deposited on the floor of the continental shelf or the deep sea.
","language":"English","publisher":"University of Chicago Press","doi":"10.1086/628677","issn":"00221376","usgsCitation":"Meade, R., 1982, Sources, sinks and storage of river sediments in the Atlantic drainage of the United States: Journal of Geology, v. 90, no. 3, p. 235-252, https://doi.org/10.1086/628677.","productDescription":"18 p.","startPage":"235","endPage":"252","numberOfPages":"18","costCenters":[],"links":[{"id":221201,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"90","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b93a9e4b08c986b31a604","contributors":{"authors":[{"text":"Meade, R.H.","contributorId":27449,"corporation":false,"usgs":true,"family":"Meade","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":362021,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70011813,"text":"70011813 - 1982 - An automatic optimum kernel-size selection technique for edge enhancement","interactions":[],"lastModifiedDate":"2017-01-18T14:57:13","indexId":"70011813","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3254,"text":"Remote Sensing of Environment","printIssn":"0034-4257","active":true,"publicationSubtype":{"id":10}},"title":"An automatic optimum kernel-size selection technique for edge enhancement","docAbstract":"Edge enhancement is a technique that can be considered, to a first order, a correction for the modulation transfer function of an imaging system. Digital imaging systems sample a continuous function at discrete intervals so that high-frequency information cannot be recorded at the same precision as lower frequency data. Because of this, fine detail or edge information in digital images is lost. Spatial filtering techniques can be used to enhance the fine detail information that does exist in the digital image, but the filter size is dependent on the type of area being processed. A technique has been developed by the authors that uses the horizontal first difference to automatically select the optimum kernel-size that should be used to enhance the edges that are contained in the image.
","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Remote Sensing of Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0034-4257(82)90005-0","issn":"00344257","usgsCitation":"Chavez, P.S., and Bauer, B.P., 1982, An automatic optimum kernel-size selection technique for edge enhancement: Remote Sensing of Environment, v. 12, no. 1, p. 23-38, https://doi.org/10.1016/0034-4257(82)90005-0.","productDescription":"16 p.","startPage":"23","endPage":"38","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":221198,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea21e4b0c8380cd48665","contributors":{"authors":[{"text":"Chavez, Pat S. Jr.","contributorId":39870,"corporation":false,"usgs":true,"family":"Chavez","given":"Pat","suffix":"Jr.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":362015,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bauer, Brian P.","contributorId":58946,"corporation":false,"usgs":true,"family":"Bauer","given":"Brian","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":362016,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70175296,"text":"70175296 - 1982 - Modeling of estuarine hydrodynamics and field data requirements","interactions":[],"lastModifiedDate":"2016-08-04T09:54:53","indexId":"70175296","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5161,"text":"Finite Methods in Fluids","active":true,"publicationSubtype":{"id":10}},"title":"Modeling of estuarine hydrodynamics and field data requirements","docAbstract":"No abstract available.
","language":"English","usgsCitation":"Cheng, R.T., and Walters, R.A., 1982, Modeling of estuarine hydrodynamics and field data requirements: Finite Methods in Fluids, v. 4, p. 89-108.","productDescription":"20 p.","startPage":"89","endPage":"108","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":326098,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57a4674ae4b0ebae89b63cd6","contributors":{"authors":[{"text":"Cheng, R. T.","contributorId":23138,"corporation":false,"usgs":false,"family":"Cheng","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":644725,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walters, R. A.","contributorId":34174,"corporation":false,"usgs":true,"family":"Walters","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":644726,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1007546,"text":"1007546 - 1982 - The nomenclatural enigma of single versus double -i endings for scientific patronyms emended to represent a man's name: A comment and some considerations","interactions":[],"lastModifiedDate":"2023-12-13T11:19:17.018445","indexId":"1007546","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1657,"text":"Fisheries","onlineIssn":"1548-8446","printIssn":"0363-2415","active":true,"publicationSubtype":{"id":10}},"title":"The nomenclatural enigma of single versus double -i endings for scientific patronyms emended to represent a man's name: A comment and some considerations","docAbstract":"The current inconsistency over the use of single vs. double -i endings for singular masculine scientific patronyms in official lists of scientific names of fishes causes needless confusion and labor. Taxonomists once preferred rules for Latinization calling for double -i endings, but current rules suggest single -i endings. Recent rulings by the International Commission of Zoological Nomenclature make it impossible to produce uniformity in this area. It is suggested that the Committee on Names of Fishes submit a petition to the Commission that modifies the present rules to allow the use of single -i endings in most cases and thus conform with current literature and the opinions of most ichthyologists.
","language":"English","publisher":"Wiley","doi":"10.1577/1548-8446(1982)007<0009:TNEOSV>2.0.CO;2","usgsCitation":"Jennings, M., 1982, The nomenclatural enigma of single versus double -i endings for scientific patronyms emended to represent a man's name: A comment and some considerations: Fisheries, v. 7, no. 5, p. 9-10, https://doi.org/10.1577/1548-8446(1982)007<0009:TNEOSV>2.0.CO;2.","productDescription":"2 p.","startPage":"9","endPage":"10","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":131588,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b32e4b07f02db6b46b0","contributors":{"authors":[{"text":"Jennings, M.R.","contributorId":18296,"corporation":false,"usgs":true,"family":"Jennings","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":315597,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":38602,"text":"pp1217 - 1982 - Simulated effects of ground-water development on the potentiometric surface of the Floridan aquifer, west-central Florida","interactions":[{"subject":{"id":11698,"text":"ofr791271 - 1980 - Simulated effects of ground-water development on potentiometric surface of the Floridan Aquifer, west-central Florida","indexId":"ofr791271","publicationYear":"1980","noYear":false,"title":"Simulated effects of ground-water development on potentiometric surface of the Floridan Aquifer, west-central Florida"},"predicate":"SUPERSEDED_BY","object":{"id":38602,"text":"pp1217 - 1982 - Simulated effects of ground-water development on the potentiometric surface of the Floridan aquifer, west-central Florida","indexId":"pp1217","publicationYear":"1982","noYear":false,"title":"Simulated effects of ground-water development on the potentiometric surface of the Floridan aquifer, west-central Florida"},"id":1}],"lastModifiedDate":"2023-09-01T21:28:18.640478","indexId":"pp1217","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1217","title":"Simulated effects of ground-water development on the potentiometric surface of the Floridan aquifer, west-central Florida","docAbstract":"A digital model of two-dimensional ground-water flow was used to predict changes in the potentiometric surface of the Floridan aquifer, 1976 to 2000, in a 5,938-square-mile area of west-central Florida. In 1975, ground water withdrawn from the Floridan aquifer for irrigation, phosphate mines, other industries, and municipal supplies averaged about 649 million gallons per day. Rates are projected to increase to about 840 million gallons per day by 2000. The model was calibrated under steady-state and transient conditions. Input parameters included transmissivity and storage coefficient of the Floridan aquifer; thickness, vertical hydraulic conductivity, and storage coefficient of the upper confining bed; altitudes of the water table and potentiometric surface; and ground-water withdrawals. Simulation of May 1976 to May 2000, using projected combined pumping rates for municipal supplies, irrigation, and industry (including existing and proposed phosphate mines), resulted in a rise in the potentiometric surface of about 10 feet in Polk County, and a decline of about 35 feet in parts of Manatee and Hardee Counties. The lowest predicted potentiometric level was about 30 feet below sea level. Predicted declines for November 1976 to October 2000 were generally 5 to 10 feet less than those for May 1976 to May 2000. (USGS)","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/pp1217","usgsCitation":"Wilson, W., and Gerhart, J.M., 1982, Simulated effects of ground-water development on the potentiometric surface of the Floridan aquifer, west-central Florida: U.S. Geological Survey Professional Paper 1217, Report: v, 83 p.; 2 Plates: 20.00 x 19.50 inches, https://doi.org/10.3133/pp1217.","productDescription":"Report: v, 83 p.; 2 Plates: 20.00 x 19.50 inches","costCenters":[],"links":[{"id":104573,"rank":5,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_4755.htm","linkFileType":{"id":5,"text":"html"},"description":"4755"},{"id":65417,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1217/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":65419,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1217/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":65418,"rank":4,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1217/plate-2.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":124267,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/pp/1217/report-thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Floridan aquifer","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -81.2817,\n 28.3244\n ],\n [\n -81.4344,\n 28.3244\n ],\n [\n -81.4344,\n 26.5183\n ],\n [\n -81.2817,\n 26.5183\n ],\n [\n -81.2817,\n 28.3244\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f9e4b07f02db5f36ac","contributors":{"authors":[{"text":"Wilson, W.E.","contributorId":100831,"corporation":false,"usgs":true,"family":"Wilson","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":220147,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gerhart, J. M.","contributorId":12855,"corporation":false,"usgs":true,"family":"Gerhart","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":220146,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":95110,"text":"95110 - 1982 - A user's guide for the stock-recruitment model validation program","interactions":[],"lastModifiedDate":"2012-02-02T00:03:59","indexId":"95110","displayToPublicDate":"1982-01-01T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"A user's guide for the stock-recruitment model validation program","docAbstract":"No abstract available at this time","language":"English","publisher":"Oak Ridge National Laboratory","publisherLocation":"Oak Ridge, TN","collaboration":"None/FC","usgsCitation":"Christensen, S., Kirk, B., and Goodyear, C., 1982, A user's guide for the stock-recruitment model validation program.","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":128369,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b16e4b07f02db6a53b2","contributors":{"authors":[{"text":"Christensen, S.W.","contributorId":8023,"corporation":false,"usgs":true,"family":"Christensen","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":298595,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kirk, B.L.","contributorId":40540,"corporation":false,"usgs":true,"family":"Kirk","given":"B.L.","email":"","affiliations":[],"preferred":false,"id":298597,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goodyear, C.P.","contributorId":11538,"corporation":false,"usgs":true,"family":"Goodyear","given":"C.P.","email":"","affiliations":[],"preferred":false,"id":298596,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":27323,"text":"wri80102 - 1981 - Relation between freshwater flow and salinity distributions in the Alafia River, Bullfrog Creek, and Hillsborough Bay, Florida","interactions":[],"lastModifiedDate":"2021-12-13T12:32:55.643289","indexId":"wri80102","displayToPublicDate":"2021-12-12T20:50:00","publicationYear":"1981","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"80-102","title":"Relation between freshwater flow and salinity distributions in the Alafia River, Bullfrog Creek, and Hillsborough Bay, Florida","docAbstract":"Data on streamflow, tide stage, specific conductance, and chloride concentration were collected in the Alafia River and Bullfrog Creek to describe the salinity and physical characteristics of the saltwater wedge. The location of the saltwater-freshwater interface for both streams was described by multiple regression equations involving streamflow and tide stage. Low-flow frequency data were used with regression relationships to show the effect of withdrawals of freshwater from the Alafia River on the location of the saltwater interface. Examples are presented without storage and with storage and minimum streamflow requirements. In every case, the effect of reductions in streamflow was upstream encroachment of saltwater. Salinity in Hillsborough Bay in the vicinity of the Alafia River and Bullfrog Creek was evaluated using a salt-transport model for various freshwater inflow conditions. Model results indicate that freshwater inflow from these streams has the greatest effect on the salinity of areas closest to the mouth during periods of above average inflow. (USGS)","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/wri80102","collaboration":"Prepared in cooperation with the Southwest Florida Water Management District","usgsCitation":"Giovannelli, R., and Southwest Florida Water Management District., 1981, Relation between freshwater flow and salinity distributions in the Alafia River, Bullfrog Creek, and Hillsborough Bay, Florida: U.S. Geological Survey Water-Resources Investigations Report 80-102, v, 62 p., https://doi.org/10.3133/wri80102.","productDescription":"v, 62 p.","costCenters":[{"id":27821,"text":"Caribbean-Florida Water Science Center","active":true,"usgs":true}],"links":[{"id":159022,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1980/0102/coverthb.jpg"},{"id":276454,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1980/0102/wri80102.pdf","text":"Report","size":"1.55 MB","linkFileType":{"id":1,"text":"pdf"},"description":"WRI 80-102"}],"contact":"Caribbean-Florida Water Science Center
U.S. Geological Survey
3321 College Avenue
Davie, FL 33314
Contact Pubs Warehouse
","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad1e4b07f02db68114b","contributors":{"authors":[{"text":"Giovannelli, R.F.","contributorId":71985,"corporation":false,"usgs":true,"family":"Giovannelli","given":"R.F.","email":"","affiliations":[],"preferred":false,"id":197917,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Southwest Florida Water Management District.","contributorId":128222,"corporation":true,"usgs":false,"organization":"Southwest Florida Water Management District.","id":529223,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70047535,"text":"70047535 - 1981 - Hydrology and model of North Fork Solomon River Valley, Kirwin Dam to Waconda Lake, north-central Kansas","interactions":[{"subject":{"id":57097,"text":"ofr801024 - 1980 - Hydrology and Model of North Fork Solomon River Valley, Kirwin Dam to Waconda Lake, North-Central Kansas","indexId":"ofr801024","publicationYear":"1980","noYear":false,"title":"Hydrology and Model of North Fork Solomon River Valley, Kirwin Dam to Waconda Lake, North-Central Kansas"},"predicate":"SUPERSEDED_BY","object":{"id":70047535,"text":"70047535 - 1981 - Hydrology and model of North Fork Solomon River Valley, Kirwin Dam to Waconda Lake, north-central Kansas","indexId":"70047535","publicationYear":"1981","noYear":false,"title":"Hydrology and model of North Fork Solomon River Valley, Kirwin Dam to Waconda Lake, north-central Kansas"},"id":1}],"lastModifiedDate":"2013-08-08T15:10:13","indexId":"70047535","displayToPublicDate":"2013-01-01T14:48:00","publicationYear":"1981","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":120,"text":"Irrigation Series","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"6","title":"Hydrology and model of North Fork Solomon River Valley, Kirwin Dam to Waconda Lake, north-central Kansas","docAbstract":"The alluvial valley of the North Fork Solomon River is an important agricultural area. Reservoir releases diverted below Kirwin Dam are the principal source of irrigation water. During the 1970'S, severe water shortages occurred in Kirwin Reservoir and other nearby reservoirs as a result of an extended drought. Some evidence indicates that surface-water shortages may have been the result of a change in the rainfall-runoff relationship. Examination of the rainfall-runoff relationship shows no apparent trend from 1951 to 1968, but annual records from 1969 to 1976 indicate that deficient rainfall occurred during 6 of the 8 years.\n\nGround water from the alluvial aquifer underlying the river valley also is used extensively for irrigation. Utilization of ground water for irrigation greatly increased from about 200 acre-feet in 1955 to about 12,300 acre-feet in 1976. Part of the surface water diverted for irrigation has percolated downward into the aquifer raising the ground-water level. Ground-water storage in the aquifer increased from 230,000 acre-feet in 1946 to 275,000 acre-feet in 1976-77.\n\nA digital model was used to simulate the steady-state conditions in the aquifer prior to closure of Kirwin Dam. Model results indicated that precipitation was the major source of recharge to the aquifer. The effective recharge, or gain from precipitation minus evapotranspiration, was about 11,700 acre-feet per year. The major element of discharge from the aquifer was leakage to the river. The simulated net leakage (leakage to the river minus leakage from the river) was about 11,500 acre-feet per year. The simulated value is consistent with the estimated gain in base flow of the river within the area modeled.\n\nMeasurements of seepage used to determine gain and loss to the stream were made twice during 1976. Based on these measurements and on base-flow periods identified from hydrographs, it was estimated that the ground-water discharge to the stream has increased about 4,000 acre-feet per year from 1946 to 1976. During the same period, ground water withdrawn from the aquifer increased 12,100 acre-feet per year. Hydrographs of water levels in wells indicate some withdrawal from aquifer storage during 1976, possibly as a combined result of below-normal rainfall and greatly increased pumpage. The analysis of data is inconclusive as to whether the aquifer can sustain increased groundwater development. However, the analysis does indicate that the aquifer could sustain withdrawals at the 1976 rate for several consecutive years of drought similar to the 1976 conditions.","language":"English","publisher":"Kansas Geological Survey","publisherLocation":"Lawrence, Kansas","collaboration":"Prepared by the Kansas Geological Survey and the U.S. Geological Survey","usgsCitation":"Jorgensen, D.G., and Stullken, L.E., 1981, Hydrology and model of North Fork Solomon River Valley, Kirwin Dam to Waconda Lake, north-central Kansas: Irrigation Series 6, viii, 34 p.; Maps: 2 Sheets.","productDescription":"viii, 34 p.; Maps: 2 Sheets","numberOfPages":"43","costCenters":[],"links":[{"id":276239,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/70047535.png"},{"id":276238,"type":{"id":15,"text":"Index Page"},"url":"https://www.kgs.ku.edu/Publications/Bulletins/IRR6/"}],"country":"United States","state":"Kansas","otherGeospatial":"North Fork Solomon River Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -99.133333,39.466667 ], [ -99.133333,39.666667 ], [ -98.5,39.666667 ], [ -98.5,39.466667 ], [ -99.133333,39.466667 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5204bdeee4b0403aa6262a61","contributors":{"authors":[{"text":"Jorgensen, Donald G.","contributorId":19537,"corporation":false,"usgs":true,"family":"Jorgensen","given":"Donald","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":482293,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stullken, Lloyd E.","contributorId":60609,"corporation":false,"usgs":true,"family":"Stullken","given":"Lloyd","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":482294,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70038303,"text":"70038303 - 1981 - Water resources inventory of Connecticut Part 7: upper Connecticut River basin","interactions":[],"lastModifiedDate":"2014-06-27T14:07:44","indexId":"70038303","displayToPublicDate":"2012-04-29T10:03:00","publicationYear":"1981","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":108,"text":"Connecticut Water Resources Bulletin","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"24","title":"Water resources inventory of Connecticut Part 7: upper Connecticut River basin","docAbstract":"The 508 square miles of the upper Connecticut River basin in north-central Connecticut include the basins of four major tributaries: the Scantic, Park, and Hockanum Rivers, and the Farmington River downstream from Tariffville. Precipitation over this area averaged 44 inches per year during 1931-60. In this period, an additional 3,800 billion gallons of water per year entered the basin in the main stem of the Connecticut River at the Massachusetts state line, about 230 billion gallons per year in the Farmington River at Tariffville, and about 10 billion gallons per year in the Seantic River at the Massachusetts state line. Some water was also imported from outside the basin by water-supply systems. About half the precipitation, 22.2 inches, was lost from the basin by evapotranspiration; the remainder flowed out of the study area in the Connecticut River at Portland.
\n
\nVariations in streamflow at 41 long-term continuous-record gaging stations are summarized in standardized graphs and tables that can be used to estimate streamflow characteristics at other sites. For example, mean-flow and two low-flow characteristics: (1) the 7-day annual minimum flow for 2-year and (2) 10-year recurrence intervals, have been determined for many partial-record stations throughout the basin.
\n
\nOf the 30 principal lakes, ponds, and reservoirs, two have usable storage capacities of more than 1 billion gallons. The maximum safe draft rate (regulated flow) of the largest of these, Shenipsit Lake at Rockville, is 6.5 million gallons per day for the 2-year and 30-year recurrence intervals (median and lowest annual flow).
\n
\nFloods have occurred within each month of the year but in different years. The greatest known flood on the Connecticut River was in March 1936; it had a peak flow of 130,000 cubic feet per second at Hartford. Since then, major floods have been reduced by flood-control measures.
\n
\nThe major aquifers underlying the basin are composed of unconsolidated materials (stratified drift and till) and bedrock. Stratified drift overlies till and bedrock in valleys and lowlands in the eastern and western parts and in most of the broad central valley. The stratified drift generally ranges in thickness from 10 feet in small valleys to more than 200 feet in the Connecticut River Valley. Bedrock underlies the entire basin and is composed of (1) interbedded sedimentary and igneous rocks and (2) crystalline rocks.
\n
\nGround-water sources yield from several million gallons per day from large well fields to 1 gallon per minute from single wells. Yields of 100 gal/min or more are most commonly obtained from screened wells tapping stratified-drift aquifers; amounts can be calculated by use of a series of graphs in conjunction with estimates of aquifer transmissivity and thickness. Eighteen areas underlain by good aquifers are selected as the most favorable locations for large-scale development of ground water. Selection of these areas is based on estimates of aquifer characteristics and the amount of water potentially available from induced infiltration of streamflow at low-flow conditions.
\n
\nSmall to moderate water supplies can generally be obtained from any of the aquifers. Wells in bedrock yield at least a few gallons per minute at most sites. The probability of obtaining an adequate yield for domestic supply is greater in sedimentary than in crystalline bedrock and is also greater in stratified-drift overburden than in till.
\n
\nWhere unaffected by man's activities, the water is of the calcium magnesium bicarbonate type, is generally low to moderate in dissolved-solids concentration, and ranges from soft to hard. In general, streamflow is less mineralized than ground water, particularly when it consists largely of direct runoff. However, streams become more highly mineralized during low-flow conditions, when most flow consists of more highly mineralized water discharged from aquifers. The median dissolved-solids concentration in water from 25 stream sites was 113 mg/L (milligrams per liter) during high flow, and 148 mg/L during low flow within the study period. Iron and manganese occur naturally in objectionable concentrations in some streams draining swamps and in some waters draining from sedimentary bedrock which contains iron- and manganese-bearing minerals.
\n
\nMan's activities have affected the water quality of streams in much of the area, particularly in the Hockanum and Park River basins. The degradation in quality in these streams is shown by wide and erratic changes in dissolved-solids concentration, excessive amounts of trace elements, a low dissolved-oxygen content, and abnormally high temperatures. Ground water within this area is degraded principally by induced infiltration of surface water that contains chemical wastes, by leachate from wastes stored or disposed of on the ground, and by effluents discharged from septic tanks.
\n
\nThe quantity and quality of water are satisfactory for a wide variety of uses, and, with suitable treatment, the water may be used for most purposes. The total amount of water used in 1968 was more than 100 billion gallons. About 80 percent of this was used for industrial purposes, and 90 percent of the industrial water was obtained from surface-water sources. About 85 percent of the population was supplied with water for domestic use by 15 major public and municipal systems and 25 private associations. Analyses of water from the 13 largest systems show generally good quality.
","language":"English","publisher":"Connecticut Department of Environmental Protection","collaboration":"Prepared by the U.S. Geological Survey in cooperation with the Connecticut Department of Environmental Protection","usgsCitation":"Ryder, R.B., Thomas, M.P., and Weiss, L.A., 1981, Water resources inventory of Connecticut Part 7: upper Connecticut River basin: Connecticut Water Resources Bulletin 24, Report: vii, 76 p.; 4 Plates: 37.33 x 50.45 inches and smaller.","productDescription":"Report: vii, 76 p.; 4 Plates: 37.33 x 50.45 inches and smaller","numberOfPages":"83","costCenters":[],"links":[{"id":258813,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/ctwrb/0024/report.pdf","size":"17112","linkFileType":{"id":1,"text":"pdf"}},{"id":258814,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/ctwrb/0024/report-thumb.jpg"}],"scale":"48000","country":"United States","state":"Connecticut","otherGeospatial":"Connecticut River Basin","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -72.833333,41.533333 ], [ -72.833333,42.058333 ], [ -72.366667,42.058333 ], [ -72.366667,41.533333 ], [ -72.833333,41.533333 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc907e4b08c986b32cc15","contributors":{"authors":[{"text":"Ryder, Robert B. rryder@usgs.gov","contributorId":68294,"corporation":false,"usgs":true,"family":"Ryder","given":"Robert","email":"rryder@usgs.gov","middleInitial":"B.","affiliations":[],"preferred":false,"id":463828,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thomas, Mendall P.","contributorId":104314,"corporation":false,"usgs":true,"family":"Thomas","given":"Mendall","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":463830,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Weiss, Lawrence A.","contributorId":102528,"corporation":false,"usgs":true,"family":"Weiss","given":"Lawrence","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":463829,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":5221668,"text":"5221668 - 1981 - The structure of western warbler assemblages: Analysis of foraging behavior and habitat selection in Oregon","interactions":[],"lastModifiedDate":"2017-05-13T16:10:52","indexId":"5221668","displayToPublicDate":"2010-06-16T12:19:15","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"The structure of western warbler assemblages: Analysis of foraging behavior and habitat selection in Oregon","docAbstract":"This study examines the foraging behavior and habitat selection of a MacGillivray's (Oporornis tolmiei)-Orange-crowned (Vermivora celata)-Wilson's (Wilsonia pusilla) warbler assemblage that occurred on early-growth clearcuts in western Oregon during breeding. Sites were divided into two groups based on the presence or absence of deciduous trees. Density estimates for each species were nearly identical between site classes except for Wilson's, whose density declined on nondeciduous tree sites. Analysis of vegetation parameters within the territories of the species identified deciduous tree cover as the variable of primary importance in the separation of warblers on each site, so that the assemblage could be arranged on a continuum of increasing deciduous tree cover. MacGillivray's and Wilson's extensively used shrub cover and deciduous tree cover, respectively; Orange-crowns were associated with both vegetation types. When the deciduous tree cover was reduced, Orange-crowns concentrated foraging activities in shrub cover and maintained nondisturbance densities. Indices of foraging-height diversity showed a marked decrease after the removal of deciduous trees. All species except MacGillivray's foraged lower in the vegatative substrate on the nondeciduous tree sites; MacGillivray's concentrated foraging activities in the low shrub cover on both sites. Indices of foraging overlap revealed a general pattern of decreased segregation by habitat after removal of deciduous trees. I suggest that the basic patterns of foraging behavior and habitat selection evidenced today in western North America were initially developed by ancestral warblers before their invasion of the west. Species successfully colonizing western habitats were probably preadapted to the conditions they encountered, with new habitats occupied without obvious evolutionary modifications.
","language":"English","publisher":"American Ornithological Society","usgsCitation":"Morrison, M.L., 1981, The structure of western warbler assemblages: Analysis of foraging behavior and habitat selection in Oregon: The Auk, v. 98, no. 3, p. 578-588.","productDescription":"11 p.","startPage":"578","endPage":"588","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":193411,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341271,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/4086124"}],"volume":"98","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a5fe4b07f02db634af6","contributors":{"authors":[{"text":"Morrison, Michael L.","contributorId":169013,"corporation":false,"usgs":false,"family":"Morrison","given":"Michael","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":334402,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5221680,"text":"5221680 - 1981 - The Mayfield method of estimating nesting success: A model, estimators and simulation results","interactions":[],"lastModifiedDate":"2012-02-02T00:14:44","indexId":"5221680","displayToPublicDate":"2010-06-16T12:19:13","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3783,"text":"The Wilson Bulletin","printIssn":"0043-5643","active":true,"publicationSubtype":{"id":10}},"title":"The Mayfield method of estimating nesting success: A model, estimators and simulation results","docAbstract":"Using a nesting model proposed by Mayfield we show that the estimator he proposes is a maximum likelihood estimator (m.l.e.). M.l.e. theory allows us to calculate the asymptotic distribution of this estimator, and we propose an estimator of the asymptotic variance. Using these estimators we give approximate confidence intervals and tests of significance for daily survival. Monte Carlo simulation results show the performance of our estimators and tests under many sets of conditions. A traditional estimator of nesting success is shown to be quite inferior to the Mayfield estimator. We give sample sizes required for a given accuracy under several sets of conditions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wilson Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Hensler, G.L., and Nichols, J., 1981, The Mayfield method of estimating nesting success: A model, estimators and simulation results: The Wilson Bulletin, v. 93, no. 1, p. 42-53.","productDescription":"42-53","startPage":"42","endPage":"53","numberOfPages":"12","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":18087,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://elibrary.unm.edu/sora/Wilson/v093n01/p0042-p0053.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":197384,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac8e4b07f02db67b9ad","contributors":{"authors":[{"text":"Hensler, Gary L.","contributorId":23111,"corporation":false,"usgs":true,"family":"Hensler","given":"Gary","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":334430,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nichols, J.D. 0000-0002-7631-2890","orcid":"https://orcid.org/0000-0002-7631-2890","contributorId":14332,"corporation":false,"usgs":true,"family":"Nichols","given":"J.D.","affiliations":[],"preferred":false,"id":334429,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5221705,"text":"5221705 - 1981 - Censusing wading bird colonies: An update on the 'flight-line' count method","interactions":[],"lastModifiedDate":"2023-11-20T13:00:42.223352","indexId":"5221705","displayToPublicDate":"2010-06-16T12:18:57","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1272,"text":"Colonial Waterbirds","printIssn":"07386028","active":false,"publicationSubtype":{"id":10}},"title":"Censusing wading bird colonies: An update on the 'flight-line' count method","docAbstract":"1. Thirteen mixed-species heronries (10 in Florida, two in Virginia, one in North Carolina) were studied in 1980 as part of a project begun in 1979 aimed at evaluating the 'flight-line' census method..2. Standardized counts of Snowy and Cattle Egrets, Louisiana and Little Blue Herons flying to and from the nesting colony were made for three hr periods, followed by a nest count of the colony. 3.Significant differences were found in the flight rates (number of birds per nest x hour) of the four species at the Chincoteague colony. However, when Cattle Egrets and Louisiana Herons were compared at all 13 colonies, their respective flight rates were in opposite rank to those at Chincoteague. Colony differences, then, may mask species differences. 4. A linear regression model showed a strong fit (R2=0.92) between the hourly flight number (3 hr means) and the nest number, but point estimates (single colony) had very large confidence limits. A given colony might be over-or underestimated by a factor of 2, using the regression equation as a predictive model. 5. A more appropriate application of the method would be to determine regionwide (e.g., state), rather than colony-specific, population estimates. 'Total' estimates for all (n= 13) colonies were within 10% of the actual nest number.","language":"English","publisher":"Waterbird Society","doi":"10.2307/1521120","usgsCitation":"Erwin, R., 1981, Censusing wading bird colonies: An update on the 'flight-line' count method: Colonial Waterbirds, v. 4, p. 91-95, https://doi.org/10.2307/1521120.","productDescription":"5 p.","startPage":"91","endPage":"95","numberOfPages":"5","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":196606,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e5e4b07f02db5e6e95","contributors":{"authors":[{"text":"Erwin, R.M.","contributorId":57396,"corporation":false,"usgs":true,"family":"Erwin","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":334488,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5210275,"text":"5210275 - 1981 - Estimates of avian population trends from the North American Breeding Bird Survey","interactions":[],"lastModifiedDate":"2012-02-02T00:15:18","indexId":"5210275","displayToPublicDate":"2009-06-09T09:23:17","publicationYear":"1981","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"seriesNumber":"6","title":"Estimates of avian population trends from the North American Breeding Bird Survey","docAbstract":"One of the major purposes of bird population studies is to document changes in population size over a period of years. The traditional method used in Europe and North America to detect population change is to calculate annual ratios. However, this method can produce spurious results when ratios are accumulated over many years. Consequently, new methods of computing trends are needed. Several new methods of estimating population trends are developed and illustrated with data from the North American Breeding Bird Survey (BBS). Each method is compared in terms of its assumptions, biases, and limitations. On the basis of these comparisons we recommend one method that we feel most accurately detects true population trends. Both the biological and statistical justifications for the model selection are presented. Trends estimated with this model are then presented for two species.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Estimating Numbers of Terrestrial Birds","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"Cooper Ornithological Society","publisherLocation":"Lawrence, KS","usgsCitation":"Geissler, P., and Noon, B., 1981, Estimates of avian population trends from the North American Breeding Bird Survey, chap. of Estimating Numbers of Terrestrial Birds, p. 42-51.","productDescription":"x, 630","startPage":"42","endPage":"51","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":201031,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fcb7a","contributors":{"editors":[{"text":"Ralph, C. John","contributorId":71284,"corporation":false,"usgs":true,"family":"Ralph","given":"C.","email":"","middleInitial":"John","affiliations":[],"preferred":false,"id":506217,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Scott, J. Michael","contributorId":98877,"corporation":false,"usgs":true,"family":"Scott","given":"J.","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":506218,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Geissler, P.H.","contributorId":24038,"corporation":false,"usgs":true,"family":"Geissler","given":"P.H.","email":"","affiliations":[],"preferred":false,"id":328117,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Noon, B.R.","contributorId":24311,"corporation":false,"usgs":true,"family":"Noon","given":"B.R.","email":"","affiliations":[],"preferred":false,"id":328118,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5210260,"text":"5210260 - 1981 - Analysis of bird survey data using a modification of Emlen's method","interactions":[],"lastModifiedDate":"2012-02-02T00:15:18","indexId":"5210260","displayToPublicDate":"2009-06-09T09:23:16","publicationYear":"1981","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Analysis of bird survey data using a modification of Emlen's method","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Estimating Numbers of Terrestrial Birds","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","usgsCitation":"Ramsey, F.L., and Scott, J.M., 1981, Analysis of bird survey data using a modification of Emlen's method, chap. of Estimating Numbers of Terrestrial Birds, p. 483-487.","productDescription":"x, 630","startPage":"483","endPage":"487","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":200959,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad0e4b07f02db680a66","contributors":{"editors":[{"text":"Ralph, C. John","contributorId":71284,"corporation":false,"usgs":true,"family":"Ralph","given":"C.","email":"","middleInitial":"John","affiliations":[],"preferred":false,"id":506193,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Scott, J. Michael","contributorId":98877,"corporation":false,"usgs":true,"family":"Scott","given":"J.","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":506194,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Ramsey, F. L.","contributorId":92379,"corporation":false,"usgs":true,"family":"Ramsey","given":"F.","middleInitial":"L.","affiliations":[],"preferred":false,"id":328077,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, J. M.","contributorId":55766,"corporation":false,"usgs":true,"family":"Scott","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":328076,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70011753,"text":"70011753 - 1981 - The terminal Eocene event and the Polish connection","interactions":[],"lastModifiedDate":"2025-06-16T23:14:42.593139","indexId":"70011753","displayToPublicDate":"2003-04-15T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"The terminal Eocene event and the Polish connection","docAbstract":"The Eocene/Oligocene boundary in Europe is marked by major discontinuities in all environments: the “Grande Coupure” in continental mammals; the elimination of semitropical elements from high-latitude floras; the virtually complete replacement of the shallow-marine malacofauna; and an extraordinary downslope excursion of carbonate deposition in deep-ocean basins (drop in the CCD). These phenomena collectively represent the “Terminal Eocene Event” (TEE). In the Carpathian Mountains, the TEE is manifested in the thin but regionally persistent Globigerina Marl, a calcareous unit containing abundant cool-water microplankton that occurs within very thick, siliceous, bathyal flysch sequences. In southern Poland, the marl is of very latest Eocene age, within planktonic foraminifera zone P17, calcareous nannoplankton zone NP19/20, and the zone of the dinoflagellate Rhomdodinium perforatum. Zircons from bentonites bracketing the marl are dated by fission-track analysis; at Polany, two underlying bentonites are 41.7 and 39.8 Ma, and at Znamirowice two overlying bentonites are 34.6 and 28.9 Ma, in sequence. This accords with glauconite K/Ar ages in Western Europe by which the Eo/Oligocene boundary age is estimated at 37–38 Ma. Global correlations indicate that the TEE corresponds to a major glacio-eustatic regression with a duration of about 0.5 Ma, in which a large Antarctic ice cap was formed, the ocean circulation was permanently changed to the psychrospheric condition, and world climate shifted irreversibly towards the modern state.
","language":"English","publisher":"Elsevier","doi":"10.1016/0031-0182(81)90111-5","issn":"00310182","usgsCitation":"Van Couvering, J.A., Aubry, M., Berggren, W., Bujak, J., Naeser, C.W., and Wieser, T., 1981, The terminal Eocene event and the Polish connection: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 36, no. 3-4, p. 321-362, https://doi.org/10.1016/0031-0182(81)90111-5.","productDescription":"42 p.","startPage":"321","endPage":"362","costCenters":[],"links":[{"id":221251,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Poland","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 14.337657367927704,\n 54.012571323156635\n ],\n [\n 14.337657367927704,\n 49.28513872073813\n ],\n [\n 24.006473984938538,\n 49.28513872073813\n ],\n [\n 24.006473984938538,\n 54.012571323156635\n ],\n [\n 14.337657367927704,\n 54.012571323156635\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"36","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb0eee4b08c986b325132","contributors":{"authors":[{"text":"Van Couvering, J. A.","contributorId":78469,"corporation":false,"usgs":true,"family":"Van Couvering","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":361883,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aubry, M.-P.","contributorId":100121,"corporation":false,"usgs":true,"family":"Aubry","given":"M.-P.","email":"","affiliations":[],"preferred":false,"id":361884,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Berggren, W.A.","contributorId":65601,"corporation":false,"usgs":true,"family":"Berggren","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":361882,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bujak, J.P.","contributorId":49928,"corporation":false,"usgs":true,"family":"Bujak","given":"J.P.","email":"","affiliations":[],"preferred":false,"id":361881,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Naeser, C. W.","contributorId":17582,"corporation":false,"usgs":true,"family":"Naeser","given":"C.","middleInitial":"W.","affiliations":[],"preferred":false,"id":361880,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Wieser, T.","contributorId":107430,"corporation":false,"usgs":true,"family":"Wieser","given":"T.","email":"","affiliations":[],"preferred":false,"id":361885,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70012107,"text":"70012107 - 1981 - Composition of the earth's upper mantle-I. Siderophile trace elements in ultramafic nodules","interactions":[],"lastModifiedDate":"2025-08-28T16:18:02.199665","indexId":"70012107","displayToPublicDate":"2003-04-07T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3525,"text":"Tectonophysics","active":true,"publicationSubtype":{"id":10}},"title":"Composition of the earth's upper mantle-I. Siderophile trace elements in ultramafic nodules","docAbstract":"Seven siderophile elements (Au, Ge, Ir, Ni, Pd, Os, Re) were determined by radiochemical neutron activation analysis in 19 ultramafic rocks, which are spinel lherzollites-xenoliths from North and Central America, Hawaii and Australia, and garnet Iherzolitexenoliths from Lesotho.
Abundances of the platinum metals are very uniform in spinel lherzolites averaging 3.4 ± 1.2 ppb Os, 3.7 ± 1.1 ppb Ir, and 4.6 ± 2.0 ppb Pd. Sheared garnet lherzolite PHN 1611 has similar abundances of these elements, but in 4 granulated garnet lherzolites, abundances are more variable. In all samples, the Pt metals retain cosmic ( Cl-chondrite) ratios. Abundances of Au and Re vary more than those of Pt metals, but the Au/Re ratio remains close to the cosmic value. The fact that higher values of Au and Re approach cosmic proportions with respect to the Pt metals, suggests that Au and Re have been depleted in some ultramafic rocks from an initially chondrite-like pattern equivalent to about 0.01 of Cl chondrite abundances. The relative enrichment of Au and Re in crustal rocks is apparently the result of crust—mantle fractionation and does not require a special circumstance of core—mantle partitioning.
Abundances of moderately volatile elements Ni, Co and Ge are very uniform in all rocks, and are much higher than those of the highly siderophile elements Au, Ir, Pd, Os and Re. When normalized to Cl chondrites, abundances of Ni and Co are nearly identical, averaging 0.20 ± 0.02 and 0.22 ± 0.02, respectively; but Ge is only 0.027 ± 0.004. The low abundance of Ge relative to Ni and Co is apparently a reflection of the general depletion of volatile elements in the Earth. The moderately siderophile elements cannot be derived from the same source as the highly siderophile elements because of the marked difference in Cl chondrite-normalized abundances and patterns. We suggest that most of the Ni, Co and Ge were enriched in the silicate by the partial oxidation of pre-existing volatile-poor Fe-Ni, whereas the corresponding highly siderophile elements remained sequestered by the surviving metal. The highly siderophile elements may have been introduced by a population of ~103 large (~1022 g) planetisimals, similar to those forming the lunar mare basins.
","language":"English","publisher":"Elsevier","doi":"10.1016/0040-1951(81)90209-2","issn":"00401951","usgsCitation":"Morgan, J.W., Wandless, G., Petrie, R., and Irving, A., 1981, Composition of the earth's upper mantle-I. Siderophile trace elements in ultramafic nodules: Tectonophysics, v. 75, no. 1-2, p. 47-67, https://doi.org/10.1016/0040-1951(81)90209-2.","productDescription":"21 p.","startPage":"47","endPage":"67","costCenters":[],"links":[{"id":221930,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"75","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f92ee4b0c8380cd4d4ab","contributors":{"authors":[{"text":"Morgan, J. W.","contributorId":92384,"corporation":false,"usgs":true,"family":"Morgan","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":362749,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wandless, G.A.","contributorId":107716,"corporation":false,"usgs":true,"family":"Wandless","given":"G.A.","affiliations":[],"preferred":false,"id":362750,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Petrie, R.K.","contributorId":87266,"corporation":false,"usgs":true,"family":"Petrie","given":"R.K.","email":"","affiliations":[],"preferred":false,"id":362748,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Irving, A.J.","contributorId":51022,"corporation":false,"usgs":true,"family":"Irving","given":"A.J.","email":"","affiliations":[],"preferred":false,"id":362747,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
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