{"pageNumber":"1434","pageRowStart":"35825","pageSize":"25","recordCount":40850,"records":[{"id":70015987,"text":"70015987 - 1989 - Acceleration spectra for subduction zone earthquakes","interactions":[],"lastModifiedDate":"2024-05-29T16:40:16.09538","indexId":"70015987","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","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":"Acceleration spectra for subduction zone earthquakes","docAbstract":"<p><span>We estimate the source spectra of shallow earthquakes from digital recordings of teleseismic&nbsp;</span><i>P</i><span>&nbsp;wave groups, that is,&nbsp;</span><i>P</i><span>&nbsp;+&nbsp;</span><sub><i>p</i></sub><i>P</i><span>&nbsp;+&nbsp;</span><sub><i>s</i></sub><i>P</i><span>, by making frequency dependent corrections for the attenuation and for the interference of the free surface. The correction for the interference of the free surface assumes that the earthquake radiates energy from a range of depths. We apply this spectral analysis to a set of 12 subduction zone earthquakes which range in size from&nbsp;</span><i>M</i><sub><i>S</i></sub><span>&nbsp;= 6.2 to 8.1, obtaining corrected&nbsp;</span><i>P</i><span>&nbsp;wave acceleration spectra on the frequency band from 0.01 to 2.0 Hz. Seismic moment estimates from surface waves and normal modes are used to extend these&nbsp;</span><i>P</i><span>&nbsp;wave spectra to the frequency band from 0.001 to 0.01 Hz. The acceleration spectra of moderate subduction zone earthquakes, that is, earthquakes whose seismic moments are less than 10</span><sup>27</sup><span>&nbsp;dyn cm, exhibit ω-square or Brune-type spectra, while the acceleration spectra of large subduction zone earthquakes, that is, earthquakes whose seismic moments are greater than 10</span><sup>27</sup><span>&nbsp;dyn cm, exhibit intermediate slopes where ü(ω) ∝ ω</span><sup>5/4</sup><span>&nbsp;for frequencies from 0.005 to 0.05 Hz. For this set of earthquakes, spectral shape appears to be a discontinuous function of seismic moment. Using reasonable assumptions for the phase characteristics, we transform the spectral shape observed for large earthquakes into the time domain to fit Ekström's (1987) moment rate functions for the&nbsp;</span><i>M</i><sub><i>S</i></sub><span>&nbsp;= 8.1 Michoacan earthquake of September 19, 1985, and the&nbsp;</span><i>M</i><sub><i>S</i></sub><span>&nbsp;= 7.6 Michoacan aftershock of September 21, 1985.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB094iB11p15541","issn":"01480227","usgsCitation":"Boatwright, J., and Choy, G.L., 1989, Acceleration spectra for subduction zone earthquakes: Journal of Geophysical Research Solid Earth, v. 94, no. B11, p. 15541-15553, https://doi.org/10.1029/JB094iB11p15541.","productDescription":"13 p.","startPage":"15541","endPage":"15553","costCenters":[],"links":[{"id":222932,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"B11","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5059e668e4b0c8380cd473d5","contributors":{"authors":[{"text":"Boatwright, J.","contributorId":87297,"corporation":false,"usgs":true,"family":"Boatwright","given":"J.","email":"","affiliations":[],"preferred":false,"id":372261,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Choy, G. L. 0000-0002-0217-5555","orcid":"https://orcid.org/0000-0002-0217-5555","contributorId":78322,"corporation":false,"usgs":true,"family":"Choy","given":"G.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":372260,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015275,"text":"70015275 - 1989 - Flow separation of currents in shallow water","interactions":[],"lastModifiedDate":"2018-04-20T11:55:17","indexId":"70015275","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Flow separation of currents in shallow water","docAbstract":"Flow separation of currents in shallow coastal areas is investigated using a boundary layer model for two-dimensional (depth-averaged) tidal flow past an elliptic headland. If the shoaling region near the coast is narrow compared to the scale of the headland, bottom friction causes the flow to separate just downstream of the point where the pressure gradient switches from favoring to adverse. As long as the shoaling region at the coast is well resolved, the inclusion of eddy viscosity and a no-slip boundary condition have no effect on this result. An approximate analytic solution for the pressure gradient along the boundary is obtained by assuming the flow away from the immediate vicinity of the boundary is irrotational. On the basis of the pressure gradient obtained from the irrotational flow solution, flow separation is a strong function of the headland aspect ratio, an equivalent Reynolds number, and a Keulegan-Carpenter number.","conferenceTitle":"Estuarine and Coastal Modeling - Proceedings of the Conference","conferenceDate":"November 15-17, 1989","conferenceLocation":"Newport, RI","language":"English","publisher":"American Society of Civil Engineers","publisherLocation":"Boston, MA, United States","isbn":"0872627586","usgsCitation":"Signell, R.P., 1989, Flow separation of currents in shallow water, Estuarine and Coastal Modeling - Proceedings of the Conference, Newport, RI, November 15-17, 1989, p. 278-290.","startPage":"278","endPage":"290","numberOfPages":"13","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":223926,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1252e4b0c8380cd54271","contributors":{"authors":[{"text":"Signell, Richard P. rsignell@usgs.gov","contributorId":1435,"corporation":false,"usgs":true,"family":"Signell","given":"Richard","email":"rsignell@usgs.gov","middleInitial":"P.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":370520,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015085,"text":"70015085 - 1989 - Aqueous chlorination of resorcinol","interactions":[],"lastModifiedDate":"2024-02-13T16:55:51.354435","indexId":"70015085","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Aqueous chlorination of resorcinol","docAbstract":"<p><span>An investigation of the aqueous chlorination (NaOCl) of resorcinol is reported. The following intermediates were detected in moderate to high yield at different pH values and varying percentages of chlorination: 2-chloro-, 4-chloro-, 2,4-dichloro-, 4,6-dichloro- and 2,4,6-trichlororesorcinol. Only trace amounts of the intermediates were detected when the chlorination was conducted in the presence of phosphate buffer. This result has significant implications since resorcinol in phosphate buffer has been used as a model compound in several recent studies on the formation of chlorinated hydrocarbons during chlorination of drinking water. Relative rates of chlorination were determined for resorcinol and several of the chlorinated resorcinols. Resorcinol was found to chlorinate only three times faster than 2,4,6-trichlororesorcinol. The structure 2,4,6-trichlororesorcinol was established as a monohydrate even after sublimation. A tetrachloro or pentachloro intermediate was not detected, suggesting that the ring-opening step of such an intermediate must be rapid.</span></p>","language":"English","publisher":"Society of Environmental Toxicology and Chemistry","doi":"10.1002/etc.5620081208","issn":"07307268","usgsCitation":"Heasley, V., Burns, M., Kemalyan, N., Mckee, T., Schroeter, H., Teegarden, B., Whitney, S., and Wershaw, R., 1989, Aqueous chlorination of resorcinol: Environmental Toxicology and Chemistry, v. 8, no. 12, p. 1159-1163, https://doi.org/10.1002/etc.5620081208.","productDescription":"5 p.","startPage":"1159","endPage":"1163","numberOfPages":"5","costCenters":[],"links":[{"id":223696,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"12","noUsgsAuthors":false,"publicationDate":"1989-12-01","publicationStatus":"PW","scienceBaseUri":"5059ed15e4b0c8380cd49600","contributors":{"authors":[{"text":"Heasley, V.L.","contributorId":10556,"corporation":false,"usgs":true,"family":"Heasley","given":"V.L.","email":"","affiliations":[],"preferred":false,"id":370023,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Burns, M.D.","contributorId":88883,"corporation":false,"usgs":true,"family":"Burns","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":370029,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kemalyan, N.A.","contributorId":39942,"corporation":false,"usgs":true,"family":"Kemalyan","given":"N.A.","email":"","affiliations":[],"preferred":false,"id":370025,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mckee, T.C.","contributorId":47089,"corporation":false,"usgs":true,"family":"Mckee","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":370026,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schroeter, H.","contributorId":39528,"corporation":false,"usgs":true,"family":"Schroeter","given":"H.","email":"","affiliations":[],"preferred":false,"id":370024,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Teegarden, B.R.","contributorId":94440,"corporation":false,"usgs":true,"family":"Teegarden","given":"B.R.","email":"","affiliations":[],"preferred":false,"id":370030,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Whitney, S.E.","contributorId":83671,"corporation":false,"usgs":true,"family":"Whitney","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":370028,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Wershaw, R.L.","contributorId":62223,"corporation":false,"usgs":true,"family":"Wershaw","given":"R.L.","affiliations":[],"preferred":false,"id":370027,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70015984,"text":"70015984 - 1989 - Undiscovered lode tin resources of the Seward Peninsula, Alaska","interactions":[],"lastModifiedDate":"2024-01-04T17:38:34.320453","indexId":"70015984","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","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":"Undiscovered lode tin resources of the Seward Peninsula, Alaska","docAbstract":"<p><span>The United States is a net importer of many important minerals, including tin. Consumption of primary tin in the United States is about 36,000 metric tons per year. Identified U.S. tin resources consist of about 40,000 metric tons. Although such figures provide insight about vulnerability to supply disruptions in the short term, they do not provide information about the potential of a country to meet its needs for a commodity from undiscovered domestic sources. Recent developments, including the preparation of models of mineral deposits and their grades and tonnages, and the application of computer simulation techniques to the estimation of metallic mineral resources, make it possible to estimate the magnitude of undiscovered resources, by deposit type, for relatively small areas such as the Seward Peninsula. This paper uses these developments and geophysical data to estimate undiscovered lode tin resources on the Seward Peninsula of Alaska. The assessment is based on a three-step methodology that (1) identifies the types of tin deposits that may be present in the region, (2) identifies the geophysical characteristics of unroofed granites and shallow granitoids, and (3) estimates, on the basis of various combinations of geologic and geophysical conditions, the number of undiscovered deposits present within or near exposed or concealed granite plutons. Computer simulation was used to combine the estimates of the number of deposits with available grade and tonnage models. Simulation experiments were designed to estimate the amount of tin in undiscovered deposits under a variety of limiting conditions. Results of simulation experiments indicate there is a 90 percent chance that the Seward Peninsula contains at least 51,000 metric tons, a 50 percent chance that it contains at least 390,000 metric tons, and a 10 percent chance it contains at least 1,100,000 metric tons of tin in undiscovered greisen, vein, and replacement deposits that have average grades of at least 0.5 percent tin.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.84.7.1936","issn":"03610128","usgsCitation":"Reed, B., Menzie, W., McDermott, M., Root, D.H., Scott, W., and Drew, L., 1989, Undiscovered lode tin resources of the Seward Peninsula, Alaska: Economic Geology, v. 84, no. 7, p. 1936-1947, https://doi.org/10.2113/gsecongeo.84.7.1936.","productDescription":"12 p.","startPage":"1936","endPage":"1947","numberOfPages":"12","costCenters":[],"links":[{"id":222879,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"84","issue":"7","noUsgsAuthors":false,"publicationDate":"1989-11-01","publicationStatus":"PW","scienceBaseUri":"505bbc6ce4b08c986b328c05","contributors":{"authors":[{"text":"Reed, B.L.","contributorId":29434,"corporation":false,"usgs":true,"family":"Reed","given":"B.L.","email":"","affiliations":[],"preferred":false,"id":372251,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Menzie, W. D.","contributorId":52916,"corporation":false,"usgs":true,"family":"Menzie","given":"W. D.","affiliations":[],"preferred":false,"id":372253,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McDermott, M.","contributorId":61568,"corporation":false,"usgs":true,"family":"McDermott","given":"M.","email":"","affiliations":[],"preferred":false,"id":372254,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Root, D. H.","contributorId":74019,"corporation":false,"usgs":true,"family":"Root","given":"D.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":372256,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Scott, W.","contributorId":29498,"corporation":false,"usgs":true,"family":"Scott","given":"W.","affiliations":[],"preferred":false,"id":372252,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Drew, L.J.","contributorId":69157,"corporation":false,"usgs":true,"family":"Drew","given":"L.J.","email":"","affiliations":[],"preferred":false,"id":372255,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70015979,"text":"70015979 - 1989 - Dynamic rupture modeling with laboratory-derived constitutive relations","interactions":[],"lastModifiedDate":"2024-05-29T16:49:27.28769","indexId":"70015979","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","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":"Dynamic rupture modeling with laboratory-derived constitutive relations","docAbstract":"<p><span>A laboratory-derived state variable friction constitutive relation is used in the numerical simulation of the dynamic growth of an in-plane or mode II shear crack. According to this formulation, originally presented by J. H. Dieterich, frictional resistance varies with the logarithm of the slip rate and with the logarithm of the frictional state variable as identified by A. L. Ruina. Under conditions of steady sliding, the state variable is proportional to (slip rate)</span><sup>−1</sup><span>. Following suddenly introduced increases in slip rate, the rate and state dependencies combine to produce behavior which resembles slip weakening. When rupture nucleation is artificially forced at fixed rupture velocity, rupture models calculated with the state variable friction in a uniformly distributed initial stress field closely resemble earlier rupture models calculated with a slip weakening fault constitutive relation. Additional rupture models are calculated in which rupture nucleation is achieved naturally, with numerical simulations of the quasi-static response of the fault leading to the onset of unstable, dynamic rupture. When rupture nucleation with the state variable friction law takes place naturally, a large fraction of the fault accelerates before accelerating slip is concentrated in what ultimately becomes the rupture nucleation patch. The state evolution accompanying this accelerating slip leads to higher average rupture speeds or a more rapid rupture acceleration to near&nbsp;</span><i>P</i><span>&nbsp;wave rupture speeds. Rupture models are also calculated for the seismological asperity problem, that is, the failure of a highly stressed fault patch surrounded by a region of zero stress drop. Dynamic overshoot of slip into the region of zero stress drop roughly agrees with a simple energy balance analysis; the final size of the rupture is proportional to the square of the size of the high stress patch. Earlier frictional stability analyses have led to the definition of a critical fault patch size for rupture nucleation. This critical patch size is generally different from critical crack lengths determined from crack tip energy balance considerations applied to a simpler slip weakening law. In the model calculations, dynamic rupture does not nucleate if the starting patch size is less than the critical patch size. This is consistent with the frictional stability analyses. Thus these model calculations suggest that dynamic rupture following a state variable friction relation is similar to that following a simpler fault slip weakening law. However, when modeling the full cycle of fault motions, rate-dependent frictional responses included in the state variable formulation are important at low slip rates associated with rupture nucleation. The critical rupture nucleation dimension appropriate for a slip weakening fault does not predict the critical nucleation dimension for a state variable fault.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB094iB09p12321","issn":"01480227","usgsCitation":"Okubo, P.G., 1989, Dynamic rupture modeling with laboratory-derived constitutive relations: Journal of Geophysical Research Solid Earth, v. 94, no. B9, p. 12321-12335, https://doi.org/10.1029/JB094iB09p12321.","productDescription":"15 p.","startPage":"12321","endPage":"12335","costCenters":[],"links":[{"id":222825,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"B9","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a042ae4b0c8380cd50817","contributors":{"authors":[{"text":"Okubo, P. G. 0000-0002-0381-6051","orcid":"https://orcid.org/0000-0002-0381-6051","contributorId":95899,"corporation":false,"usgs":true,"family":"Okubo","given":"P.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":372237,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015099,"text":"70015099 - 1989 - A satellite-based digital data system for low-frequency geophysical data","interactions":[],"lastModifiedDate":"2023-10-27T23:33:15.685231","indexId":"70015099","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"A satellite-based digital data system for low-frequency geophysical data","docAbstract":"<p>A reliable method for collection, display, and analysis of low-frequency geophysical data from isolated sites, which can be throughout North and South America and the Pacific Rim, has been developed for use with the Geostationary Operational Environmental Satellite (GOES) system. Geophysical data primarily intended for earthquake hazard and crustal deformation monitoring are digitized with either 12-bit or 16-bit resolution and transmitted every 10 min through a satellite link to a bank of UNIX-based computers in Menlo Park, California. There the data are available for analysis and display within a few seconds of their transmit time. This system provides real-time monitoring of crustal deformation parameters such as tilt, strain, fault displacement, local magnetic field, crustal geochemistry, and water levels, as well as meteorological and other parameters, along faults in California and Alaska, and in volcanic regions in the western United States, Rabaul, and other locations in the New Britain region of the South Pacific. Various mathematical, statistical, and graphical algorithms process the incoming data to detect changes in crustal deformation and fault slip that may indicate the first stages of catastrophic fault failure. Alert trigger levels based on physical models, signal resolution, and previous history have been defined for particular instrument types. Computer-driven remote paging and mail systems are used to notify appropriate personnel when alarm status is reached. The system supports continuous historical records of low-frequency geophysical data, software for extensive analysis of these data, and programs for modeling fault rupture with and without seismic radiation, as well as providing an environment for real-time attempts at earthquake prediction.</p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0790010189","usgsCitation":"Silverman, S., Mortensen, C., and Johnston, M., 1989, A satellite-based digital data system for low-frequency geophysical data: Bulletin of the Seismological Society of America, v. 79, no. 1, p. 189-198, https://doi.org/10.1785/BSSA0790010189.","productDescription":"10 p.","startPage":"189","endPage":"198","numberOfPages":"10","costCenters":[],"links":[{"id":223964,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"1","noUsgsAuthors":false,"publicationDate":"1989-02-01","publicationStatus":"PW","scienceBaseUri":"5059e579e4b0c8380cd46d55","contributors":{"authors":[{"text":"Silverman, S.","contributorId":17231,"corporation":false,"usgs":true,"family":"Silverman","given":"S.","email":"","affiliations":[],"preferred":false,"id":370068,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mortensen, C.","contributorId":67938,"corporation":false,"usgs":true,"family":"Mortensen","given":"C.","email":"","affiliations":[],"preferred":false,"id":370069,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnston, M.","contributorId":88091,"corporation":false,"usgs":true,"family":"Johnston","given":"M.","email":"","affiliations":[],"preferred":false,"id":370070,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015100,"text":"70015100 - 1989 - Recorded seismic response of a base-isolated steel bridge carrying a steel water pipe","interactions":[],"lastModifiedDate":"2012-03-12T17:19:01","indexId":"70015100","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Recorded seismic response of a base-isolated steel bridge carrying a steel water pipe","docAbstract":"A set of strong motion records was obtained from the base-isolated Santa Ana River Pipeline Bridge during the magnitude 5.9 Whittier Narrows, California, earthquake of October 1, 1987. The analysis of the records show that the level of excitation was not strong enough to fully activate the base isolators. The dominant modes of the response are the translations of the abutment-bridge-pipe system in the longitudinal and transverse directions, and the bending of the steel truss between supports in the vertical direction.","largerWorkTitle":"American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP","conferenceTitle":"Seismic Engineering - 1989: Design, Analysis, Testing, and Qualification Methods","conferenceDate":"23 July 1989 through 27 July 1989","conferenceLocation":"Honolulu, HI, USA","language":"English","publisher":"Publ by ASME","publisherLocation":"New York, NY, United States","issn":"0277027X","usgsCitation":"Safak, E., and Brady, A., 1989, Recorded seismic response of a base-isolated steel bridge carrying a steel water pipe, <i>in</i> American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, v. 162, Honolulu, HI, USA, 23 July 1989 through 27 July 1989, p. 137-144.","startPage":"137","endPage":"144","numberOfPages":"8","costCenters":[],"links":[{"id":223965,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"162","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a286e4b0e8fec6cdb635","contributors":{"authors":[{"text":"Safak, E.","contributorId":104070,"corporation":false,"usgs":true,"family":"Safak","given":"E.","email":"","affiliations":[],"preferred":false,"id":370072,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brady, A. G.","contributorId":61794,"corporation":false,"usgs":true,"family":"Brady","given":"A. G.","affiliations":[],"preferred":false,"id":370071,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015101,"text":"70015101 - 1989 - A comparison of two finite element models of tidal hydrodynamics using a North Sea data set","interactions":[],"lastModifiedDate":"2023-02-01T17:30:44.536153","indexId":"70015101","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":664,"text":"Advances in Water Resources","active":true,"publicationSubtype":{"id":10}},"title":"A comparison of two finite element models of tidal hydrodynamics using a North Sea data set","docAbstract":"<p><span>Using the region of the English Channel and the southern bight of the North Sea, we systematically compare the results of two independent finite element models of tidal hydrodynamics. The model intercomparison provides a means for increasing our understanding of the relevant physical processes in the region in question as well as a means for the evaluation of certain algorithmic procedures of the two models.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0309-1708(89)90022-5","usgsCitation":"Walters, R.A., and Werner, F., 1989, A comparison of two finite element models of tidal hydrodynamics using a North Sea data set: Advances in Water Resources, v. 12, no. 4, p. 184-193, https://doi.org/10.1016/0309-1708(89)90022-5.","productDescription":"10 p.","startPage":"184","endPage":"193","numberOfPages":"10","costCenters":[],"links":[{"id":223966,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"English Channel, North Sea","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -4.238806932442344,\n              50.3556778594193\n            ],\n            [\n              -3.9245012541310302,\n              48.66277868215653\n            ],\n            [\n              -2.5055163001223946,\n              48.574893516299596\n            ],\n            [\n              -1.4847440767553621,\n              48.6715886582364\n            ],\n            [\n              -1.8533138209136837,\n              49.60324666326741\n            ],\n            [\n              -1.4026293805001444,\n              49.72763916601804\n            ],\n            [\n              -1.0403923729954272,\n              49.361900650268126\n            ],\n            [\n              0.0760210104153316,\n              49.44574669262283\n            ],\n            [\n              1.635796455450702,\n              50.222298286305914\n            ],\n            [\n              1.6665015413279889,\n              50.81452541862126\n            ],\n            [\n              3.5093411208896157,\n              51.37983407219363\n            ],\n            [\n              4.804229577841227,\n              53.015076989967184\n            ],\n            [\n              1.6199525098326717,\n              52.97597192513564\n            ],\n            [\n              1.684066477339286,\n              52.08219845138507\n            ],\n            [\n              0.7492061298781039,\n              51.370324917871756\n            ],\n            [\n              1.353208831024574,\n              51.37760627718626\n            ],\n            [\n              1.196391279270017,\n              50.86401998692878\n            ],\n            [\n              -1.0133227594474192,\n              50.68434713349774\n            ],\n            [\n              -1.8189956791787267,\n              50.60383129051692\n            ],\n            [\n              -2.584590994819706,\n              50.546533664650156\n            ],\n            [\n              -3.067986178446631,\n              50.633245929843326\n            ],\n            [\n              -3.7034293402499543,\n              50.22220283072102\n            ],\n            [\n              -4.238806932442344,\n              50.3556778594193\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"12","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e37ae4b0c8380cd4605b","contributors":{"authors":[{"text":"Walters, Roy A.","contributorId":74877,"corporation":false,"usgs":true,"family":"Walters","given":"Roy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":370073,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Werner, Francisco","contributorId":236916,"corporation":false,"usgs":false,"family":"Werner","given":"Francisco","email":"","affiliations":[{"id":7223,"text":"National Oceanic and Atmospheric Administration, National Marine","active":true,"usgs":false}],"preferred":true,"id":370074,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015244,"text":"70015244 - 1989 - Assessment of geothermal resources at Newcastle, Utah","interactions":[],"lastModifiedDate":"2012-03-12T17:19:00","indexId":"70015244","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Assessment of geothermal resources at Newcastle, Utah","docAbstract":"Integrated geology, geophysics, and geochemistry studies in the Newcastle area of southwest Utah are used to develop a conceptual geologic model of a blind, moderate-temperature hydrothermal system. Studies using 12 existing and 12 new, thermal gradient test holes, in addition to geologic mapping, gravity surveys, and other investigations have helped define the thermal regime. Preliminary results indicate that the up-flow region is located near the west-facing escarpment of an adjacent mountain range, probably related to the bounding range-front fault. Chemical geothermometers suggest equilibration temperatures ranging from 140??C to 170??C. The highest temperature recorded in the system is 130??C from an exploration well drilled by the Unocal Corporation.","largerWorkTitle":"Transactions - Geothermal Resources Council","conferenceTitle":"Geysers - Three Decades of Achievement: A Window on the Future","conferenceDate":"1 October 1989 through 4 October 1989","conferenceLocation":"Santa Rosa, CA, USA","language":"English","publisher":"Publ by Geothermal Resources Council","publisherLocation":"Davis, CA, United States","issn":"01935933","usgsCitation":"Blackett, R.E., Shubat, M.A., Chapman, D.S., Forster, C.B., and Schlinger, C.M., 1989, Assessment of geothermal resources at Newcastle, Utah, <i>in</i> Transactions - Geothermal Resources Council, v. 13, Santa Rosa, CA, USA, 1 October 1989 through 4 October 1989, p. 109-116.","startPage":"109","endPage":"116","numberOfPages":"8","costCenters":[],"links":[{"id":224358,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ee33e4b0c8380cd49c10","contributors":{"authors":[{"text":"Blackett, Robert E.","contributorId":83674,"corporation":false,"usgs":true,"family":"Blackett","given":"Robert","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":370430,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shubat, Michael A.","contributorId":67224,"corporation":false,"usgs":true,"family":"Shubat","given":"Michael","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":370429,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chapman, David S.","contributorId":54349,"corporation":false,"usgs":true,"family":"Chapman","given":"David","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":370428,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Forster, Craig B.","contributorId":12629,"corporation":false,"usgs":true,"family":"Forster","given":"Craig","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":370426,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schlinger, Charles M.","contributorId":19710,"corporation":false,"usgs":true,"family":"Schlinger","given":"Charles","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":370427,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70015949,"text":"70015949 - 1989 - Hydraulic analysis of the Schoharie Creek bridge","interactions":[],"lastModifiedDate":"2012-03-12T17:18:45","indexId":"70015949","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Hydraulic analysis of the Schoharie Creek bridge","docAbstract":"Ten people died on April 5, 1987 as a result of the collapse of two spans of a New York State Thruway bridge into the floodwaters of Schoharie Creek. The cause of the bridge failure was determined to be scour of bed material from under the foundations of piers supporting the bridge. To evaluate the hydraulic conditions that produced the scour, a two-dimensional finite element surface-water flow model was constructed. The model was used to obtain a detailed description of water-surface elevations and depth-averaged velocities within a reach that extends from about 4000 ft downstream of the bridge to about 6000 ft upstream of the bridge.","conferenceTitle":"Proceedings of the 1989 National Conference on Hydraulic Engineering","conferenceDate":"14 August 1989 through 18 August 1989","conferenceLocation":"New Orleans, LA, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872627195","usgsCitation":"Froehlich, D.C., and Trent, R.E., 1989, Hydraulic analysis of the Schoharie Creek bridge, Proceedings of the 1989 National Conference on Hydraulic Engineering, New Orleans, LA, USA, 14 August 1989 through 18 August 1989, p. 887-892.","startPage":"887","endPage":"892","numberOfPages":"6","costCenters":[],"links":[{"id":222930,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a32d2e4b0c8380cd5eadd","contributors":{"authors":[{"text":"Froehlich, David C.","contributorId":58617,"corporation":false,"usgs":true,"family":"Froehlich","given":"David","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":372159,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Trent, Roy E.","contributorId":26815,"corporation":false,"usgs":true,"family":"Trent","given":"Roy","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":372158,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015919,"text":"70015919 - 1989 - Petrologic evolution of divergent peralkaline magmas from the Silent Canyon caldera complex, southwestern Nevada volcanic field","interactions":[],"lastModifiedDate":"2024-05-29T16:51:08.78146","indexId":"70015919","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","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":"Petrologic evolution of divergent peralkaline magmas from the Silent Canyon caldera complex, southwestern Nevada volcanic field","docAbstract":"<p><span>The Silent Canyon volcanic center consists of a buried Miocene peralkaline caldera complex and outlying peralkaline lava domes. Its location has been corroborated by geophysical data and more than 50 drill holes. Two widespread ash flow sheets, the Tub Spring and overlying Grouse Canyon members of the Miocene Belted Range Tuff, were erupted from the caldera complex and have volumes of 60–100 km</span><sup>3</sup><span>&nbsp;and 200 km</span><sup>3</sup><span>, respectively. Eruption of the ash flows was preceded by widespread extrusion of precaldera comendite domes and was followed by extrusion of postcollapse peralkaline lavas and tuffs within and outside the caldera complex. Lava flows and tuffs were also deposited between the two major ash flow sheets. Rocks of the Silent Canyon center vary significantly in silica content and peralkalinity. The most mafic rocks are precollapse and postcollapse trachytes (65–69% SiO</span><sub>2</sub><span>). Low-silica comendites (69–73% SiO</span><sub>2</sub><span>) were erupted as the mafic upper part of the chemically zoned Grouse Canyon Member and as postcollapse lavas. The lower part of the Grouse Canyon Member and the underlying rhyolite of Split Ridge are moderately peralkaline comendite (PI is molar ratio Na + K/Al is 1.17–1.26). These comendites have major element characteristics and trace element enrichments approaching those of pantellerites. The Tub Spring Member, by contrast, is a weakly peralkaline chemically unzoned silicic comendite (75–76% SiO</span><sub>2</sub><span>) ash flow tuff. Weakly peralkaline silicic comendites (PI 1.0–1.1) are the most abundant precaldera lavas. Postcollapse lavas range from trachyte to silicic comendite; some have anomalous light rare earth element (LREE) enrichments. Silent Canyon rocks follow a common petrologic evolution from trachyte to low-silica comendite; above 73% SiO</span><sub>2</sub><span>, compositions of the moderately peralkaline comendites diverge from those of the weakly peralkaline silicic comendites. These contrasting differentiation paths are shown in the behavior of Fe and other transition metals, Al, Na, K; the trace elements Ba, Zr, Nb; and probably F and Cl. Weakly peralkaline silicic comendites show a LREE/heavy REE crossover in early erupted/late erupted rocks; moderately peralkaline comendites are enriched in all REE. The development of divergent peralkaline magmas, toward both pantelleritic and weakly peralkaline compositions, is unusual in a single volcanic center.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB094iB05p06021","issn":"01480227","usgsCitation":"Sawyer, D., and Sargent, K.A., 1989, Petrologic evolution of divergent peralkaline magmas from the Silent Canyon caldera complex, southwestern Nevada volcanic field: Journal of Geophysical Research Solid Earth, v. 94, no. B5, p. 6021-6040, https://doi.org/10.1029/JB094iB05p06021.","productDescription":"20 p.","startPage":"6021","endPage":"6040","numberOfPages":"20","costCenters":[],"links":[{"id":223337,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"94","issue":"B5","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a7812e4b0c8380cd78619","contributors":{"authors":[{"text":"Sawyer, D.A.","contributorId":107666,"corporation":false,"usgs":true,"family":"Sawyer","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":372076,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sargent, K. A.","contributorId":58630,"corporation":false,"usgs":true,"family":"Sargent","given":"K.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":372075,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70197519,"text":"70197519 - 1989 - Paleomagnetism and tectonic rotation of the lower Miocene Peach Springs Tuff: Colorado Plateau, Arizona, to Barstow, California","interactions":[],"lastModifiedDate":"2018-06-08T15:49:45","indexId":"70197519","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1723,"text":"GSA Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Paleomagnetism and tectonic rotation of the lower Miocene Peach Springs Tuff: Colorado Plateau, Arizona, to Barstow, California","docAbstract":"<p><span>We have determined remanent magnetization directions of the lower Miocene Peach Springs Tuff at 41 localities in western Arizona and southeastern California. An unusual northeast and shallow magnetization direction confirms the proposed geologic correlation of isolated outcrops of the tuff from the Colorado Plateau to Barstow, California, a distance of 350 km. The Peach Springs Tuff was apparently emplaced as a single cooling unit about 18 or 19 Ma and is now exposed in 4 tectonic provinces west of the Plateau, including the Transition Zone, Basin and Range, Colorado River extensional corridor, and central Mojave Desert strike-slip zone. As such, the tuff is an ideal stratigraphic and structural marker for paleomagnetic assessment of regional variations in tectonic rotations about vertical axes. From 4 sites on the stable Colorado Plateau, we have determined a reference direction of remanent magnetization (I = 36.4°, D = 33.0°, α</span><sub>95</sub><span><span>&nbsp;</span>= 3.4°) that we interpret as a representation of the ambient magnetic field at the time of eruption. A steeper direction of magnetization (I = 54.8°, D = 22.5°, α</span><sub>95</sub><span><span>&nbsp;</span>= 2.3°) was observed at Kingman where the tuff is more than 100 m thick, and similar directions were determined at 7 other thick exposures of the Peach Springs Tuff. The steeper component is presumably a later-stage magnetization acquired after prolonged cooling of the ignimbrite. When compared to the Plateau reference direction, tilt-corrected directions from 3 of 6 sites in the central Mojave strike-slip zone show localized rotations up to 13° in the vicinity of strike-slip faults. The other three sites show no significant rotations with respect to the Colorado Plateau. Both clockwise and counterclockwise rotations were measured, and no systematic regional pattern is evident. Our results do not support kinematic models which require consistent rotation of large regions to accommodate the cumulative displacement of major post-middle Miocene strike-slip faults in the central Mojave Desert. Most of our sites in the Transition Zone and Basin and Range province have had no significant rotation, although small counterclockwise rotation in the McCullough and New York Mountains may be related to sinistral shear along en echelon faults southwest of the Lake Mead shear zone. The larger rotations occur in the Colorado River extensional corridor, where 8 of 14 sites show rotations ranging from 37° clockwise to 51° counterclockwise. These rotations occur in allochthonous tilt blocks which have been transported northeastward above the Chemehuevi-Whipple Mountains detachment fault. Upper-plate blocks within 1 km of the exposed detachment unexpectedly show no significant rotation. From this relation, we infer that rotations are accommodated along numerous low-angle faults at higher structural levels above the detachment surface.</span></p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1989)101<0846:PATROT>2.3.CO;2","usgsCitation":"Wells, R., and Hillhouse, J.W., 1989, Paleomagnetism and tectonic rotation of the lower Miocene Peach Springs Tuff: Colorado Plateau, Arizona, to Barstow, California: GSA Bulletin, v. 101, no. 6, p. 846-863, https://doi.org/10.1130/0016-7606(1989)101<0846:PATROT>2.3.CO;2.","productDescription":"18 p.","startPage":"846","endPage":"863","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":354865,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona, California","otherGeospatial":"Colorado Plateau","volume":"101","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c112c66e4b034bf6a82274f","contributors":{"authors":[{"text":"Wells, Ray E. 0000-0002-7796-0160 rwells@usgs.gov","orcid":"https://orcid.org/0000-0002-7796-0160","contributorId":2692,"corporation":false,"usgs":true,"family":"Wells","given":"Ray E.","email":"rwells@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":737522,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hillhouse, John W. 0000-0002-1371-4622 jhillhouse@usgs.gov","orcid":"https://orcid.org/0000-0002-1371-4622","contributorId":2618,"corporation":false,"usgs":true,"family":"Hillhouse","given":"John","email":"jhillhouse@usgs.gov","middleInitial":"W.","affiliations":[],"preferred":true,"id":737523,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70195529,"text":"70195529 - 1989 - Depositional aspects and a guide to Paleocene coal-bearing sequences, Powder River Basin","interactions":[],"lastModifiedDate":"2018-02-20T16:20:22","indexId":"70195529","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Depositional aspects and a guide to Paleocene coal-bearing sequences, Powder River Basin","docAbstract":"<p>The Paleocene coal-bearing sequences in the northern Powder River Basin are contained in the Tongue River Member of the Fort Union Formation and include anomalously thick (54 m) subbituminous coals. These thick coals have been the target of exploration and development for the past few decades. For the past decade, these coals have also been the object of depositional modeling studies [Law, 1976; Galloway, 1979; Flores, 1981, 1983, 1986; Ethridge and others, 1981; Ayers and Kaiser, 1984; Warwick, 1985; Ayers, 1986; Moore, 1986; Warwick and Stanton, 1988].</p><p>Intensive modeling of these coals has resulted in two major schools of thought. Firstly, Galloway [1979], Flores [1981, 1983, 1986], Ethridge and others [1981], Warwick [1985], Moore [1986], and Warwick and Stanton [1988] believe that the coals formed from peat that accumulated in swamps of fluvial systems. The fluvial systems are interpreted as a basin axis trunktributary complex that drained to the north-northeast into the Williston Basin. Secondly, Ayers and Kaiser [1984] and Ayers [1986] believe that the coals formed from peat swamps of deltaic systems. These deltas are envisioned to have prograded east to west from the Black Hills and infilled Lebo lake that was centrally located along the basin axis.</p><p>In order to explain the low ash content of the thick coals, Flores [1981] proposed that they are formed as domed peats, similar in geomorphology to swamps associated with the modern fluvial systems in Borneo as described by Anderson [1964]. Ethridge and others [1981] suggested that these fluvial-related swamps are platforms well above drainage systems and are fed by ground water that is recharged from surrounding highlands. Warwick [1985], Warwick and Stanton [1988], Satchell [1984], and Pocknall and Flores [1987] confirmed the domed peat hypothesis by investigating the petrology and palynology of the thick coals.</p><p>The purpose of this paper is to provide a guide to the depositional aspects of the thick coals in the Tongue River Member of the Fort Union Formation and, because of the biases of the field trip leaders, it elaborates on the fluvial origin of the swamps in which the thick coals formed. Case histories of these thick coals and associated sediments in the Gillette, Powder&nbsp;River, and Kaycee-Linch areas of Wyoming and in the Decker-Tongue River area of Montana (fig. 1) are highlighted on this field trip.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Tertiary and Cretaceous coals in the Rocky Mountains region: Casper, Wyoming to Salt Lake City, Utah June 29-July 8, 1989","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"American Geophysical Union","doi":"10.1029/FT132p0001","isbn":"9780875905846","usgsCitation":"Flores, R.M., Warwick, P.D., and Moore, T.A., 1989, Depositional aspects and a guide to Paleocene coal-bearing sequences, Powder River Basin, <i>in</i> Tertiary and Cretaceous coals in the Rocky Mountains region: Casper, Wyoming to Salt Lake City, Utah June 29-July 8, 1989, p. 1-10, https://doi.org/10.1029/FT132p0001.","productDescription":"10 p.","startPage":"1","endPage":"10","costCenters":[],"links":[{"id":351837,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Montana, Wyoming","otherGeospatial":"Powder River Basin","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5aff313de4b0da30c1bfd8d5","contributors":{"editors":[{"text":"Flores, Romeo M. rflores@usgs.gov","contributorId":71984,"corporation":false,"usgs":true,"family":"Flores","given":"Romeo","email":"rflores@usgs.gov","middleInitial":"M.","affiliations":[{"id":165,"text":"Central Energy Resources Team","active":false,"usgs":true}],"preferred":false,"id":729118,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":729119,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Moore, Timothy A.","contributorId":9378,"corporation":false,"usgs":true,"family":"Moore","given":"Timothy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":729120,"contributorType":{"id":2,"text":"Editors"},"rank":3},{"text":"Glass, Gary","contributorId":55831,"corporation":false,"usgs":false,"family":"Glass","given":"Gary","email":"","affiliations":[],"preferred":false,"id":729121,"contributorType":{"id":2,"text":"Editors"},"rank":4},{"text":"Smith, Archie","contributorId":92647,"corporation":false,"usgs":false,"family":"Smith","given":"Archie","email":"","affiliations":[],"preferred":false,"id":729122,"contributorType":{"id":2,"text":"Editors"},"rank":5},{"text":"Nichols, Douglas J.","contributorId":87184,"corporation":false,"usgs":true,"family":"Nichols","given":"Douglas","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":729123,"contributorType":{"id":2,"text":"Editors"},"rank":6},{"text":"Wolfe, Jack A.","contributorId":102474,"corporation":false,"usgs":true,"family":"Wolfe","given":"Jack","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":729124,"contributorType":{"id":2,"text":"Editors"},"rank":7},{"text":"Stanton, Ronald W.","contributorId":37386,"corporation":false,"usgs":true,"family":"Stanton","given":"Ronald","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":729125,"contributorType":{"id":2,"text":"Editors"},"rank":8},{"text":"Weaver, Jean","contributorId":28578,"corporation":false,"usgs":true,"family":"Weaver","given":"Jean","affiliations":[],"preferred":false,"id":729126,"contributorType":{"id":2,"text":"Editors"},"rank":9}],"authors":[{"text":"Flores, Romeo M. rflores@usgs.gov","contributorId":71984,"corporation":false,"usgs":true,"family":"Flores","given":"Romeo","email":"rflores@usgs.gov","middleInitial":"M.","affiliations":[{"id":165,"text":"Central Energy Resources Team","active":false,"usgs":true}],"preferred":false,"id":729127,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":729128,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moore, Timothy A.","contributorId":9378,"corporation":false,"usgs":true,"family":"Moore","given":"Timothy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":729129,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70197504,"text":"70197504 - 1989 - Mechanisms of Cenozoic tectonic rotation, Pacific Northwest Convergent Margin, U.S.A.","interactions":[],"lastModifiedDate":"2018-06-07T16:40:21","indexId":"70197504","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Mechanisms of Cenozoic tectonic rotation, Pacific Northwest Convergent Margin, U.S.A.","docAbstract":"<p><span>Large clockwise rotations (15–80°) are characteristic of Cenozoic volcanic and sedimentary rocks along the convergent margin of the northwestern United States. Abundant paleomagnetic data from 62–12 m.y. old rocks in forearc, arc, and backarc regions show that rotation increases with age and with proximity to the coast. Paleomagnetic and structural studies both support dextral shear as a significant contributor to tectonic rotation in the Pacific Northwest, with an added contribution from Basin-Range extension. Paleomagnetism of individual Miocene (15-12 Ma) flows of the Columbia River Basalt Group show a well-defined, progressive increase in rotation across the forearc region toward the trench which is most readily explained by shear. This progressive increase in rotation toward the coast is also seen in Oligocene and Eocene rocks, although with steeper gradients, indicating that shear rotation has been important throughout Cenozoic time. The dextral shear may be accommodated by abundant, small-scale strike-slip faults which are acting as Riedel shears. Coast Range faults, usually with well-developed subhorizontal slickensides, occur throughout the stratigraphie section and are most abundant in the oldest rocks. Displacements are small to moderate (10</span><sup>2</sup><span>–10</span><sup>3</sup><span><span>&nbsp;</span>m), and both dextral and sinistral faults are common. Fault trends are variable, with N20°–45°W faults showing dextral slip and N60°W-S70°W faults showing sinistral slip. The driving force for dextral shear presumably results from coupling of the overlying plate with the subducting Farallon plate, which has been moving northeast throughout most of Cenozoic time. The increase in rotation from north to south along the coast probably represents the contribution of extension in the Basin- Range region to the rotations in Oregon.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Paleomagnetic rotations and continental deformation. NATO ASI Series (C: Mathematical and Physical Sciences)","language":"English","publisher":"Springer","doi":"10.1007/978-94-009-0869-7_19","usgsCitation":"Wells, R., 1989, Mechanisms of Cenozoic tectonic rotation, Pacific Northwest Convergent Margin, U.S.A., chap. <i>of</i> Paleomagnetic rotations and continental deformation. NATO ASI Series (C: Mathematical and Physical Sciences), v. 254, p. 313-325, https://doi.org/10.1007/978-94-009-0869-7_19.","productDescription":"13 p.","startPage":"313","endPage":"325","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":354845,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"254","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c112c66e4b034bf6a822751","contributors":{"authors":[{"text":"Wells, Ray E. 0000-0002-7796-0160 rwells@usgs.gov","orcid":"https://orcid.org/0000-0002-7796-0160","contributorId":2692,"corporation":false,"usgs":true,"family":"Wells","given":"Ray E.","email":"rwells@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":false,"id":737486,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5222320,"text":"5222320 - 1989 - Survival analysis in telemetry studies: The staggered entry design","interactions":[],"lastModifiedDate":"2024-11-25T16:18:07.471317","indexId":"5222320","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","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":"Survival analysis in telemetry studies: The staggered entry design","docAbstract":"<p>The estimation of survival distributions for radio-tagged animals is important to wildlife ecologists. Allowance must be made for animals being lost (or censored) due to radio failure, radio loss, or emigration of the animal from the study area. The Kaplan-Meier procedure (Kaplan and Meier 1958), widely used in medical studies subject to censoring, can be applied to this problem. We developed a simple modification of the Kaplan-Meier procedure that allows for new animals to be added after the study has begun. We present 2 examples using telemetry data collected from northern bobwhite quail (<i>Colinus virginianus</i>) to show the simplicity and utility of the Kaplan-Meier procedure and its modifications. The log rank test used to compare 2 survival distributions can also be modified to allow for additions during the study. Simple computer programs that can be run on a personal computer are available from the authors.</p>","language":"English","publisher":"Wiley","doi":"10.2307/3801296","usgsCitation":"Pollock, K.H., Winterstein, S.R., Bunck, C., and Curtis, P.D., 1989, Survival analysis in telemetry studies: The staggered entry design: Journal of Wildlife Management, v. 53, no. 1, p. 7-15, https://doi.org/10.2307/3801296.","productDescription":"9 p.","startPage":"7","endPage":"15","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":197698,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688381","contributors":{"authors":[{"text":"Pollock, Kenneth H.","contributorId":8590,"corporation":false,"usgs":false,"family":"Pollock","given":"Kenneth","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":336072,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Winterstein, Scott R.","contributorId":66807,"corporation":false,"usgs":true,"family":"Winterstein","given":"Scott","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":336073,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bunck, Christine M.","contributorId":210764,"corporation":false,"usgs":false,"family":"Bunck","given":"Christine M.","affiliations":[{"id":38142,"text":"U.S. Geological Survey, Patuxent Wildlife Research Center, Laurel, MD (Retired)","active":true,"usgs":false}],"preferred":false,"id":336074,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Curtis, Paul D.","contributorId":83633,"corporation":false,"usgs":true,"family":"Curtis","given":"Paul","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":336075,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1000538,"text":"1000538 - 1989 - Behavioural interaction between fish predators and their prey: effects of plant density","interactions":[],"lastModifiedDate":"2013-02-05T15:55:00","indexId":"1000538","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":770,"text":"Animal Behaviour","active":true,"publicationSubtype":{"id":10}},"title":"Behavioural interaction between fish predators and their prey: effects of plant density","docAbstract":"Prey-specific anti-predatory behaviour under different degrees of structural complexity determines foraging success of predators. The behaviour of piscivorous fish (largemouth bass, <i>Micropterus salmoides</i> and northern pike, <i>Esox lucius</i>) and their prey (bluegills, <i>Lepomis macrochirus</i>, and fathead minnows, <i>Pimephales promelas</i>) were quantified in 60-min experiments in laboratory pools (2 multiplied by 4 m in diameter, 0 multiplied by 5 m deep) with artificial vegetation at densities of 0, 50, 250, and 1000 stems/m<sup>2</sup>.  Largemouth bass switched predatory tactics from searching to ambushing as plant density increased whereas northern pike always used ambushing.  At high plant density, both predators captured minnows, but not bluegills. Bluegills modified their behaviour more than minnows in response to predators, thereby avoiding predation at high plant densities. Structural complexity alone did not always provide refuge for prey; prey must use the structure to avoid predators. Predators may seek vegetated areas if appropriate, vulnerable prey are present.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Animal Behaviour","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/0003-3472(89)90120-6","usgsCitation":"Savino, J.F., and Stein, R., 1989, Behavioural interaction between fish predators and their prey: effects of plant density: Animal Behaviour, v. 37, no. 2, p. 311-321, https://doi.org/10.1016/0003-3472(89)90120-6.","productDescription":"11 p.","startPage":"311","endPage":"321","numberOfPages":"11","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133275,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":267058,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0003-3472(89)90120-6"}],"volume":"37","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a53e4b07f02db62b6a4","contributors":{"authors":[{"text":"Savino, Jacqueline F. jsavino@usgs.gov","contributorId":2213,"corporation":false,"usgs":true,"family":"Savino","given":"Jacqueline","email":"jsavino@usgs.gov","middleInitial":"F.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":308727,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stein, Roy A.","contributorId":21494,"corporation":false,"usgs":true,"family":"Stein","given":"Roy A.","affiliations":[],"preferred":false,"id":308728,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1002382,"text":"1002382 - 1989 - Rising water levels and the future of southeastern Louisiana swamp forests","interactions":[],"lastModifiedDate":"2019-06-11T11:28:55","indexId":"1002382","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1583,"text":"Estuaries","active":true,"publicationSubtype":{"id":10}},"title":"Rising water levels and the future of southeastern Louisiana swamp forests","docAbstract":"<p><span>An important factor contributing to the deterioration of wetland forests in Louisiana is increasing water levels resulting from eustatic sea-level rise and subsidence. Analyses of long-term water level records from the Barataria and Verret watersheds in southeastern Louisiana indicate an apparent sea level rise of about 1-m per century, mainly the result of subsidence. Permanent study plots were established in cypress-tupelo stands in these two watersheds. The tree, water level, and subsidence data collected in these plots were entered into the U.S. Fish and Wildlife Service’s FORFLO bottomland hardwood succession model to determine the long-term effects of rising water levels on forest structure. Analyses were made of 50–100 years for a cypress-tupelo swamp site in each basin and a bottomland hardwood ridge in the Verret watershed. As flooding increased, less flood tolerant species were replaced by cypress-tupelo within 50 years. As flooding continued, the sites start to become nonforested. From the test analyses, the FORFLO model seems to be an excellent tool for predicting long-term changes in the swamp habitat of south Louisiana.</span></p>","language":"English","doi":"10.2307/1351909","usgsCitation":"Conner, W., and Brody, M., 1989, Rising water levels and the future of southeastern Louisiana swamp forests: Estuaries, v. 12, no. 4, p. 318-323, https://doi.org/10.2307/1351909.","productDescription":"6 p.","startPage":"318","endPage":"323","numberOfPages":"6","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":134453,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisiana","volume":"12","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a11e4b07f02db600525","contributors":{"authors":[{"text":"Conner, W.H.","contributorId":54165,"corporation":false,"usgs":true,"family":"Conner","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":312086,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brody, M.","contributorId":49325,"corporation":false,"usgs":true,"family":"Brody","given":"M.","email":"","affiliations":[],"preferred":false,"id":312085,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1000084,"text":"1000084 - 1989 - Migration and control of purple loosestrife (Lythrum salicaria L.) along highway corridors","interactions":[],"lastModifiedDate":"2016-03-21T11:54:23","indexId":"1000084","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1547,"text":"Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Migration and control of purple loosestrife (Lythrum salicaria L.) along highway corridors","docAbstract":"<p><span>The east-west density gradient and the pattern and mode of migration of the wetland exotic, purple loosestrife (</span><i class=\"EmphasisTypeItalic \">Lythrum salicaria</i><span>&nbsp;L.), were assessed in a survey of populations along the New York State Thruway from Albany to Buffalo to determine if the highway corridor contributed to the spread of this species. During the peak flowering season of late July to early August, individual colonies of purple loosestrife were identified and categorized into three size classes in parallel belt transects consisting of the median strip and highway rights-of-way on the north and south sides of the road. Data were also collected on the presence of colonies adjacent to the corridor and on highway drainage patterns. Although a distinct east-west density gradient existed in the corridor, it corresponded to the gradient on adjacent lands and was greatly influenced by a major infestation at Montezuma National Wildlife Refuge. The disturbed highway corridor served as a migration route for purple loosestrife, but topographic features dictated that this migration was a short-distance rather than long-distance process. Ditch and culvert drainage patterns increased the ability of purple loosestrife to migrate to new wetland sites. Management strategies proposed to reduce the spread of this wetland threat include minimizing disturbance, pulling by hand, spraying with glyphosate, disking, and mowing.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/BF01874916","usgsCitation":"Wilcox, D.A., 1989, Migration and control of purple loosestrife (Lythrum salicaria L.) along highway corridors: Environmental Management, v. 13, no. 3, p. 365-370, https://doi.org/10.1007/BF01874916.","productDescription":"6 p.","startPage":"365","endPage":"370","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":132835,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db6353ce","contributors":{"authors":[{"text":"Wilcox, Douglas A.","contributorId":36880,"corporation":false,"usgs":true,"family":"Wilcox","given":"Douglas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":308053,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1003129,"text":"1003129 - 1989 - Reversed-phase thin-layer chromatography of homologs of Antimycin-A and related derivatives","interactions":[],"lastModifiedDate":"2012-02-02T00:04:50","indexId":"1003129","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2213,"text":"Journal of Chromatography","active":true,"publicationSubtype":{"id":10}},"title":"Reversed-phase thin-layer chromatography of homologs of Antimycin-A and related derivatives","docAbstract":"Using a reversed-phase high-performance liquid chromatographic (HPLC) technique, a mixture of antimycins A was separated into eight hitherto unreported subcomponents, Ala, Alb, A2a, A2b, A3a, A3b, A4a, and A4b. Although a base-line resolution of the known four major antimycins Al, A2, A3, and A4 was readily achieved with mobile phases containing acetate buffers, the separation of the new antibiotic subcomponents was highly sensitive to variation in mobile phase conditions. The type and composition of organic modifiers, the nature of buffer salts, and the concentration of added electrolytes had profound effects on capacity factors, separation factors, and peak resolution values. Of the numerous chromatographic systems examined, a mobile phase consisting of methanol-water (70:30) and 0.005 M tetrabutylammonium phosphate at pH 3.0 yielded the most satisfactory results for the separation of the subcomponents. Reversed-phase gradient HPLC separation of the dansylated or methylated antibiotic compounds produced superior chromatographic characteristics and the presence of added electrolytes was not a critical factor for achieving separation. Differences in the chromatographic outcome between homologous and structural isomers were interpretated based on a differential solvophobic interaction rationale. Preparative reversed-phase HPLC under optimal conditions enabled isolation of pure samples of the methylated antimycin subcomponents for use in structural studies.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Chromatography","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Abidi, S.L., 1989, Reversed-phase thin-layer chromatography of homologs of Antimycin-A and related derivatives: Journal of Chromatography, v. 464, no. 2, p. 453-458.","productDescription":"453-458","startPage":"453","endPage":"458","numberOfPages":"6","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":134483,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"464","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a17e4b07f02db6042eb","contributors":{"authors":[{"text":"Abidi, Sharon L.","contributorId":22305,"corporation":false,"usgs":true,"family":"Abidi","given":"Sharon","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":312788,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1003853,"text":"1003853 - 1989 - Sightability adjustment methods for aerial surveys of wildlife  populations","interactions":[],"lastModifiedDate":"2023-11-06T12:38:57.41841","indexId":"1003853","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1039,"text":"Biometrics","active":true,"publicationSubtype":{"id":10}},"title":"Sightability adjustment methods for aerial surveys of wildlife  populations","docAbstract":"Aerial surveys are routinely conducted to estimate the abundance of wildlife species and the rate of population change. However, sightability of animal groups is acknowledged as a significant source of bias in these estimates. Recent research has focused on the development of sightability models to predict the probability of sighting groups under various conditions. Given such models, we show how sightability can be incorporated into the estimator of population size as a probability of response using standard results from sample surveys. We develop formulas for the cases where the sighting probability must be estimated. An example, using data from a helicopter survey of moose in Alberta (Jacobson, Alberta Oil Sands Research Project Report, 1976), is given to illustrate the technique.","language":"English","publisher":"International Biometric Society","doi":"10.2307/2531486","usgsCitation":"Steinhorst, R., and Samuel, M., 1989, Sightability adjustment methods for aerial surveys of wildlife  populations: Biometrics, v. 45, no. 2, p. 415-425, https://doi.org/10.2307/2531486.","productDescription":"11 p.","startPage":"415","endPage":"425","numberOfPages":"11","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":129199,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a1ae4b07f02db60688c","contributors":{"authors":[{"text":"Steinhorst, R.K.","contributorId":89833,"corporation":false,"usgs":true,"family":"Steinhorst","given":"R.K.","email":"","affiliations":[],"preferred":false,"id":314473,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Samuel, M.D.","contributorId":13910,"corporation":false,"usgs":true,"family":"Samuel","given":"M.D.","affiliations":[],"preferred":false,"id":314472,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1001536,"text":"1001536 - 1989 - Breeding canvasbacks: a test of a habitat model","interactions":[],"lastModifiedDate":"2017-12-27T13:54:49","indexId":"1001536","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3111,"text":"Prairie Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Breeding canvasbacks: a test of a habitat model","docAbstract":"Schroeder (1984) proposed a habitat suitability model for breeding canvasbacks (Aythya valisineria) based on the size, water regime, and emergent vegetation of wetlands. We evaluated the model with data from surveys of canvasbacks on 2265 wetlands in North Dakota, South Dakota, and Minnesota. The model proved inadequate as a predictor of canvasback pair density; the correlation between values produced by the model and canvasback pair densities was r = 0.0023 (P = 0.911). There were, however, suggestions of (1) higher canvasback density and frequency of occurrence on wetlands with more open interiors, and (2) a relation between canvasback density and wetland size that varied according to wetland permanence. We recommend that the model be improved by testing these relations, and possibly by incorporating determinants of water quality or pondweed (Potamogeton spp.) occurrence.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Prairie Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Johnson, D.H., Hammond, M., McDonald, T.L., and Nustad, C., 1989, Breeding canvasbacks: a test of a habitat model: Prairie Naturalist, v. 21, no. 4, p. 193-202.","productDescription":"10 p.","startPage":"193","endPage":"202","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133845,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0ae4b07f02db5fb47b","contributors":{"authors":[{"text":"Johnson, Douglas H. 0000-0002-7778-6641","orcid":"https://orcid.org/0000-0002-7778-6641","contributorId":70327,"corporation":false,"usgs":true,"family":"Johnson","given":"Douglas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":311207,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hammond, M.C.","contributorId":60596,"corporation":false,"usgs":true,"family":"Hammond","given":"M.C.","email":"","affiliations":[],"preferred":false,"id":311206,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McDonald, T. L.","contributorId":101211,"corporation":false,"usgs":false,"family":"McDonald","given":"T.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":311208,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nustad, C.L.","contributorId":34481,"corporation":false,"usgs":true,"family":"Nustad","given":"C.L.","email":"","affiliations":[],"preferred":false,"id":311205,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1007439,"text":"1007439 - 1989 - Begging behavior in budgerigars","interactions":[],"lastModifiedDate":"2023-10-26T16:42:14.96291","indexId":"1007439","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1589,"text":"Ethology","active":true,"publicationSubtype":{"id":10}},"title":"Begging behavior in budgerigars","docAbstract":"<p>Five hypotheses about relationships between begging rates, feeding rates and other variables were investigated in captive budgerigar nestlings from 23 days post-hatch to fledge date (Period 4). Within families, nestlings that begged more frequently during Period 4 were fed more often by their parents, but there was no indication that nestling weight on day 23 was related to begging rates in the subsequent growth interval. Instead, last-hatched nestlings begged more than their older siblings. Last-hatched nestlings were not “undersized” at the beginning of Period 4 relative to their siblings, and they experienced less competition than their siblings had at comparable ages. Even so, last-hatched budgerigars begged more often, were fed more often and fledged at heavier weights than their older nestmates.</p><p>Across families, there was a strong positive relationship between average Period 4 begging rate and average parental feeding rate, but this relationship was much weaker when brood sex ratio was taken into account: female-biased broods had much higher begging and feeding rates than male-biased broods. Brood size was related to begging, with higher ratios of begging to feeding rates for family members than for single nestlings.</p><p>Taken together, these results suggest that relationships between feeding and begging behavior in budgerigars are more complex than theoretical models have suggested. More studies of avian begging and feeding patterns are required before we can generalize about the control of parental food allocations in birds.</p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1439-0310.1989.tb00765.x","usgsCitation":"Stamps, J., Clark, A., Arrowood, P., and Kus, B.E., 1989, Begging behavior in budgerigars: Ethology, v. 81, p. 177-192, https://doi.org/10.1111/j.1439-0310.1989.tb00765.x.","productDescription":"16 p.","startPage":"177","endPage":"192","numberOfPages":"16","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130296,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"81","noUsgsAuthors":false,"publicationDate":"2010-04-26","publicationStatus":"PW","scienceBaseUri":"4f4e4a54e4b07f02db62c2b8","contributors":{"authors":[{"text":"Stamps, J.","contributorId":64601,"corporation":false,"usgs":true,"family":"Stamps","given":"J.","email":"","affiliations":[],"preferred":false,"id":315357,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, A.","contributorId":50476,"corporation":false,"usgs":false,"family":"Clark","given":"A.","affiliations":[],"preferred":false,"id":315355,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Arrowood, P.","contributorId":57796,"corporation":false,"usgs":true,"family":"Arrowood","given":"P.","email":"","affiliations":[],"preferred":false,"id":315356,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kus, Barbara E. 0000-0002-3679-3044 barbara_kus@usgs.gov","orcid":"https://orcid.org/0000-0002-3679-3044","contributorId":203745,"corporation":false,"usgs":true,"family":"Kus","given":"Barbara","email":"barbara_kus@usgs.gov","middleInitial":"E.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":315358,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":1003537,"text":"1003537 - 1989 - Disposition of pentachlorophenol in rainbow trout (Salmo gairdneri): Effect of inhibition of metabolism","interactions":[],"lastModifiedDate":"2023-03-03T19:17:35.555869","indexId":"1003537","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":874,"text":"Aquatic Toxicology","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Disposition of pentachlorophenol in rainbow trout (<i>Salmo gairdneri</i>): Effect of inhibition of metabolism","title":"Disposition of pentachlorophenol in rainbow trout (Salmo gairdneri): Effect of inhibition of metabolism","docAbstract":"<p><span>The accumulation kinetics of pentachlorophenol (PCP) were investigated in rainbow trout (</span><i>Salmo gairdneri</i><span>) in the absence and presence of 25 mg/1 salicylamide, an inhibitor of PCP metabolism. After exposure to 5 μg/1 PCP over 1–96 h, the amount of PCP in the whole fish, its concentration in water and the total amount of metabolites (water, whole fish and bile) were measured. Equations for these variables, based on a two compartment pharmacokinetic model, were fitted simultaneously to the data using the computer program NONLIN, which uses an iterative nonlinear least squares technique. Salicylamide decreased the metabolic clearance of PCP, which resulted in an increase in the bioconcentration factor (BCF); this increase was partially offset by a salicylamide-induced decrease in the apparent volume of distribution of PCP. A clearance-volume compartment model permitted partitioning of the BCF in terms of the underlying physiologic and biochemical processes (uptake clearance, metabolic clearance and apparent volume of distribution). With this approach the BCF can be categorized as either dependent (e.g., PCP) or independent of uptake and metabolism (elimination) based on the relative sizes of the clearances for uptake and metabolism. Inhibition of PCP metabolism resulted in a loss of its dependence on uptake and metabolism. The BCF estimated as the apparent volume of distribution may be useful for assessment of the risk associated with exposure and bioaccumulation potential, as elimination is generally quite variable among aquatic species.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0166-445X(89)90024-6","usgsCitation":"Stehly, G., and Hayton, W.L., 1989, Disposition of pentachlorophenol in rainbow trout (Salmo gairdneri): Effect of inhibition of metabolism: Aquatic Toxicology, v. 14, no. 2, p. 131-148, https://doi.org/10.1016/0166-445X(89)90024-6.","productDescription":"18 p.","startPage":"131","endPage":"148","numberOfPages":"18","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":198336,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a2c6","contributors":{"authors":[{"text":"Stehly, G. R.","contributorId":34081,"corporation":false,"usgs":true,"family":"Stehly","given":"G. R.","affiliations":[],"preferred":false,"id":313484,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hayton, W. L.","contributorId":100325,"corporation":false,"usgs":true,"family":"Hayton","given":"W.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":313485,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1001800,"text":"1001800 - 1989 - Dispersal in the communally breeding groove-billed ani (Crotophaga sulcirostris)","interactions":[],"lastModifiedDate":"2023-11-24T14:06:51.146864","indexId":"1001800","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1318,"text":"Condor","active":true,"publicationSubtype":{"id":10}},"title":"Dispersal in the communally breeding groove-billed ani (Crotophaga sulcirostris)","docAbstract":"We studied dispersal in a color-banded population of the Groove-billed Ani (Crotophaga sulcirostris) in Costa Rica. Eight percent of the young alive at the end of the breeding season bred on their natal territories the next year and 4% remained but did not breed. Thirteen percent dispersed successfully within the study area and bred in communal groups or simple pairs. The remaining 75% of the young birds disappeared from the study area. Young males remained in the study area as breeders more frequently than did young females. Breeding dispersal occurred, with at least 9% of the adult population moving to a new territory each year.We used a demographic model to estimate the following dispersal fates for young birds. For both males and females, 62% of the young alive at the end of the breeding season in which they hatched obtained a breeding position the next year. Of those that dispersed from their natal territories, 59 to 70% of the males and 64 to 74% of the females obtained breeding positions. Of those that bred the year after they hatched, 22% of the males and 2% of the females bred in their natal units, 34% of the males and 6% of the females bred within the study area but outside their natal units, and 44% of the males and 92% of the females bred outside the study area. We estimated that all of the males and 28% of the females that bred the year after they hatched were within three territories of their natal sites.","language":"English","publisher":"Oxford Academic","doi":"10.2307/1368148","usgsCitation":"Bowen, B.S., Koford, R.R., and Vehrencamp, S., 1989, Dispersal in the communally breeding groove-billed ani (Crotophaga sulcirostris): Condor, v. 91, p. 52-64, https://doi.org/10.2307/1368148.","productDescription":"13 p.","startPage":"52","endPage":"64","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133798,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -85.69335937499999,\n              8.418036280774361\n            ],\n            [\n              -82.913818359375,\n              8.418036280774361\n            ],\n            [\n              -82.913818359375,\n              11.092165893502\n            ],\n            [\n              -85.69335937499999,\n              11.092165893502\n            ],\n            [\n              -85.69335937499999,\n              8.418036280774361\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"91","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db64a341","contributors":{"authors":[{"text":"Bowen, B. S.","contributorId":42163,"corporation":false,"usgs":true,"family":"Bowen","given":"B.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":311811,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Koford, Rolf R.","contributorId":16347,"corporation":false,"usgs":true,"family":"Koford","given":"Rolf","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":311810,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vehrencamp, S.L.","contributorId":47750,"corporation":false,"usgs":true,"family":"Vehrencamp","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":311812,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1003554,"text":"1003554 - 1989 - A macrophyte submodel for aquatic ecosystems","interactions":[],"lastModifiedDate":"2023-02-28T17:51:47.537351","indexId":"1003554","displayToPublicDate":"1989-01-01T00:00:00","publicationYear":"1989","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":861,"text":"Aquatic Botany","active":true,"publicationSubtype":{"id":10}},"title":"A macrophyte submodel for aquatic ecosystems","docAbstract":"<p><span>A macrophyte submodel has been incorporated and tested in CE-QUAL-R1, a one-dimensional, vertically averaged model of reservoir water quality. A quasi two-dimensional scheme was necessary to represent the spatial relationship of macrophytes in reservoirs adequately. The macrophyte processes modeled were photosynthesis, dark respiration, excretion and nonpredatory mortality. Process equations for photosynthesis as a function of light and temperature, and dark respiration as a function of temperature were tested using data from laboratory studies. The submodel was field tested, along with other components of CE-QUAL-R1, using data collected at Eau Galle Reservoir, WI, U.S.A.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0304-3770(89)90037-5","usgsCitation":"Collins, C.D., and Wlosinski, J.H., 1989, A macrophyte submodel for aquatic ecosystems: Aquatic Botany, v. 33, no. 3-4, p. 191-206, https://doi.org/10.1016/0304-3770(89)90037-5.","productDescription":"16 p.","startPage":"191","endPage":"206","numberOfPages":"16","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":131379,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","otherGeospatial":"Eau Galle Reservoir","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -92.25092258188174,\n              44.86636499940943\n            ],\n            [\n              -92.25092258188174,\n              44.85564026067513\n            ],\n            [\n              -92.23459609225418,\n              44.85564026067513\n            ],\n            [\n              -92.23459609225418,\n              44.86636499940943\n            ],\n            [\n              -92.25092258188174,\n              44.86636499940943\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"33","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6ae222","contributors":{"authors":[{"text":"Collins, Carol Desormeau","contributorId":95020,"corporation":false,"usgs":true,"family":"Collins","given":"Carol","email":"","middleInitial":"Desormeau","affiliations":[],"preferred":false,"id":313523,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wlosinski, Joseph H.","contributorId":75488,"corporation":false,"usgs":true,"family":"Wlosinski","given":"Joseph","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":313522,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}