{"pageNumber":"4465","pageRowStart":"111600","pageSize":"25","recordCount":165901,"records":[{"id":70014894,"text":"70014894 - 1986 - Regression approximations for transport model constraint sets in combined aquifer simulation-optimization studies","interactions":[],"lastModifiedDate":"2018-02-14T08:42:15","indexId":"70014894","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Regression approximations for transport model constraint sets in combined aquifer simulation-optimization studies","docAbstract":"<p><span>Problems involving the combined use of contaminant transport models and nonlinear optimization schemes can be very expensive to solve. This paper explores the use of transport models with ordinary regression and regression on ranks to develop approximate response functions of concentrations at critical locations as a function of pumping and recharge at decision wells. These response functions combined with other constraints can often be solved very easily and may suggest reasonable starting points for combined simulation-management modeling or even relatively efficient operating schemes in themselves.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR022i004p00581","usgsCitation":"Alley, W.M., 1986, Regression approximations for transport model constraint sets in combined aquifer simulation-optimization studies: Water Resources Research, v. 22, no. 4, p. 581-586, https://doi.org/10.1029/WR022i004p00581.","productDescription":"6 p.","startPage":"581","endPage":"586","costCenters":[],"links":[{"id":225280,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"4","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505a933fe4b0c8380cd80cdc","contributors":{"authors":[{"text":"Alley, William M. walley@usgs.gov","contributorId":1661,"corporation":false,"usgs":true,"family":"Alley","given":"William","email":"walley@usgs.gov","middleInitial":"M.","affiliations":[{"id":502,"text":"Office of Surface Water","active":true,"usgs":true}],"preferred":false,"id":369549,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014829,"text":"70014829 - 1986 - A united physicochemical description of the protonation and metal ion complexation equilibria of natural organic acids (humic and fulvic acids). 2. Influence of polyelectrolyte properties and functional group heterogeneity on the protonation equilibria of fulvic acid","interactions":[],"lastModifiedDate":"2023-10-19T16:04:52.082816","indexId":"70014829","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"A united physicochemical description of the protonation and metal ion complexation equilibria of natural organic acids (humic and fulvic acids). 2. Influence of polyelectrolyte properties and functional group heterogeneity on the protonation equilibria of fulvic acid","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"American Chemical Society","doi":"10.1021/es00146a007","issn":"0013936X","usgsCitation":"Ephraim, J., Alegret, S., Mathuthu, A., Bicking, M., Malcolm, R., and Marinsky, J., 1986, A united physicochemical description of the protonation and metal ion complexation equilibria of natural organic acids (humic and fulvic acids). 2. Influence of polyelectrolyte properties and functional group heterogeneity on the protonation equilibria of fulvic acid: Environmental Science & Technology, v. 20, no. 4, p. 354-366, https://doi.org/10.1021/es00146a007.","productDescription":"13 p.","startPage":"354","endPage":"366","costCenters":[],"links":[{"id":225342,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"4","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5059e60ce4b0c8380cd47123","contributors":{"authors":[{"text":"Ephraim, J.","contributorId":10937,"corporation":false,"usgs":true,"family":"Ephraim","given":"J.","affiliations":[],"preferred":false,"id":369385,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Alegret, S.","contributorId":24104,"corporation":false,"usgs":true,"family":"Alegret","given":"S.","email":"","affiliations":[],"preferred":false,"id":369386,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mathuthu, A.","contributorId":38718,"corporation":false,"usgs":true,"family":"Mathuthu","given":"A.","affiliations":[],"preferred":false,"id":369387,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bicking, M.","contributorId":53534,"corporation":false,"usgs":true,"family":"Bicking","given":"M.","email":"","affiliations":[],"preferred":false,"id":369390,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Malcolm, Ronald L.","contributorId":46075,"corporation":false,"usgs":true,"family":"Malcolm","given":"Ronald L.","affiliations":[],"preferred":false,"id":369389,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Marinsky, J.A.","contributorId":42706,"corporation":false,"usgs":true,"family":"Marinsky","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":369388,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70014507,"text":"70014507 - 1986 - Fluid inclusion from drill hole DW-5, Hohi geothermal area, Japan: Evidence of boiling and procedure for estimating CO2 content","interactions":[],"lastModifiedDate":"2012-03-12T17:19:31","indexId":"70014507","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"Fluid inclusion from drill hole DW-5, Hohi geothermal area, Japan: Evidence of boiling and procedure for estimating CO2 content","docAbstract":"Fluid inclusion studies have been used to derive a model for fluid evolution in the Hohi geothermal area, Japan. Six types of fluid inclusions are found in quartz obtained from the drill core of DW-5 hole. They are: (I) primary liquid-rich with evidence of boiling; (II) primary liquid-rich without evidence of boiling; (III) primary vapor-rich (assumed to have been formed by boiling); (IV) secondary liquid-rich with evidence of boiling; (V) secondary liquid-rich without evidence of boiling; (VI) secondary vapor-rich (assumed to have been formed by boiling). Homogenization temperatures (Th) range between 196 and 347??C and the final melting point of ice (Tm) between -0.2 and -4.3??C. The CO2 content was estimated semiquantitatively to be between 0 and 0.39 wt. % based on the bubble behavior on crushing. NaCl equivalent solid solute salinity of fluid inclusions was determined as being between 0 and 6.8 wt. % after minor correction for CO2 content. Fluid inclusions in quartz provide a record of geothermal activity of early boiling and later cooling. The CO2 contents and homogenization temperatures of fluid inclusions with evidence of boiling generally increase with depth; these changes, and NaCl equivalent solid solute salinity of the fluid can be explained by an adiabatic boiling model for a CO2-bearing low-salinity fluid. Some high-salinity inclusions without CO2 are presumed to have formed by a local boiling process due to a temperature increase or a pressure decrease. The liquid-rich primary and secondary inclusions without evidence of boiling formed during the cooling process. The salinity and CO2 content of these inclusions are lower than those in the boiling fluid at the early stage, probably as a result of admixture with groundwater. ?? 1986.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Sasada, M., Roedder, E., and Belkin, H., 1986, Fluid inclusion from drill hole DW-5, Hohi geothermal area, Japan: Evidence of boiling and procedure for estimating CO2 content: Journal of Volcanology and Geothermal Research, v. 30, no. 3-4, p. 231-251.","startPage":"231","endPage":"251","numberOfPages":"21","costCenters":[],"links":[{"id":225579,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1271e4b0c8380cd542dd","contributors":{"authors":[{"text":"Sasada, M.","contributorId":76891,"corporation":false,"usgs":true,"family":"Sasada","given":"M.","email":"","affiliations":[],"preferred":false,"id":368540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roedder, E.","contributorId":100986,"corporation":false,"usgs":true,"family":"Roedder","given":"E.","affiliations":[],"preferred":false,"id":368541,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Belkin, H. E. 0000-0001-7879-6529","orcid":"https://orcid.org/0000-0001-7879-6529","contributorId":38160,"corporation":false,"usgs":true,"family":"Belkin","given":"H. E.","affiliations":[],"preferred":false,"id":368539,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014515,"text":"70014515 - 1986 - Catastrophic flooding and eruption of ash-flow tuff at Medicine Lake volcano, California","interactions":[],"lastModifiedDate":"2024-01-30T00:37:58.762896","indexId":"70014515","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Catastrophic flooding and eruption of ash-flow tuff at Medicine Lake volcano, California","docAbstract":"<div id=\"15569948\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Catastrophic flooding has eroded a discontinuous network of oversized anastomosing channels on the northwest flank of the Medicine Lake volcano. Most of these previously unrecognized channels were cut into an andesitic ash-flow tuff; boulders as large as 2 m in intermediate diameter were moved in terrain where little rain falls today and stream erosion is nonexistent or minimal. The flooding was probably triggered by eruption of andesite tuff through a late Pleistocene ice cap on the volcano, about 60,000 to 70,000 or about 130,000 B.P.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1986)14<875:CFAEOA>2.0.CO;2","issn":"00917613","usgsCitation":"Donnelly-Nolan, J., and Nolan, K., 1986, Catastrophic flooding and eruption of ash-flow tuff at Medicine Lake volcano, California: Geology, v. 14, no. 10, p. 875-878, https://doi.org/10.1130/0091-7613(1986)14<875:CFAEOA>2.0.CO;2.","productDescription":"4 p.","startPage":"875","endPage":"878","numberOfPages":"4","costCenters":[],"links":[{"id":225645,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f3c9e4b0c8380cd4b95e","contributors":{"authors":[{"text":"Donnelly-Nolan, J.M.","contributorId":104936,"corporation":false,"usgs":false,"family":"Donnelly-Nolan","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":368558,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nolan, K.M.","contributorId":36151,"corporation":false,"usgs":true,"family":"Nolan","given":"K.M.","affiliations":[],"preferred":false,"id":368557,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014844,"text":"70014844 - 1986 - Borehole field calibration and measurement of low-concentration manganese by decay gamma rays","interactions":[],"lastModifiedDate":"2024-04-18T15:59:49.859181","indexId":"70014844","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1808,"text":"Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Borehole field calibration and measurement of low-concentration manganese by decay gamma rays","docAbstract":"<p><span>The manganese concentration in the Arundel clay formation, Prince Georges County, Maryland, was determined from a borehole by using delayed neutron activation. The neutrons were produced by a 100 mu g&nbsp;</span><sup>252</sup><span>&nbsp;Cf source. The 847 keV gamma ray of manganese was detected continuously, and its counting rate was measured at intervals of 15 s as the measuring sonde was moved at a rate of 0.5 cm/s. The technique measured the concentration ratio of manganese to aluminum. This ratio, when combined with an estimate of the aluminum concentration of the clay, made it possible to determine the percentage concentration of manganese without using a test-pit calibration facility. The measurements were made by using an NaI(Tl) scintillation detector and a Ge(HP) solid-state detector cooled by solid propane. A two-pass technique had to be used with the scintillation detector because Compton background from the 1 779 keV photopeak of aluminum masked the manganese line. The Compton background did not interfere when the solid-state detector was used. The borehole measurements compared favorably with a chemical core analysis and were unaffected by water in the borehole.</span></p>","language":"English","publisher":"Society of Exploration Geophysicists","doi":"10.1190/1.1442075","issn":"00168033","usgsCitation":"Mikesell, J., Senftle, F.E., Lloyd, T., Tanner, A., Merritt, C., and Force, E.R., 1986, Borehole field calibration and measurement of low-concentration manganese by decay gamma rays: Geophysics, v. 51, no. 12, p. 2219-2224, https://doi.org/10.1190/1.1442075.","productDescription":"6 p.","startPage":"2219","endPage":"2224","numberOfPages":"6","costCenters":[],"links":[{"id":225600,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f217e4b0c8380cd4afd5","contributors":{"authors":[{"text":"Mikesell, J.L.","contributorId":46113,"corporation":false,"usgs":true,"family":"Mikesell","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":369428,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Senftle, F. E.","contributorId":47788,"corporation":false,"usgs":true,"family":"Senftle","given":"F.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":369429,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lloyd, T.A.","contributorId":6600,"corporation":false,"usgs":true,"family":"Lloyd","given":"T.A.","email":"","affiliations":[],"preferred":false,"id":369425,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tanner, A.B.","contributorId":44155,"corporation":false,"usgs":true,"family":"Tanner","given":"A.B.","email":"","affiliations":[],"preferred":false,"id":369427,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Merritt, C.T.","contributorId":63966,"corporation":false,"usgs":true,"family":"Merritt","given":"C.T.","email":"","affiliations":[],"preferred":false,"id":369430,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Force, E. R.","contributorId":28235,"corporation":false,"usgs":true,"family":"Force","given":"E.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":369426,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70014825,"text":"70014825 - 1986 - Regional resource depletion and industry activity: The case of oil and gas in the Gulf of Mexico","interactions":[],"lastModifiedDate":"2025-09-12T17:14:47.692782","indexId":"70014825","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3414,"text":"Socio-Economic Planning Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Regional resource depletion and industry activity: The case of oil and gas in the Gulf of Mexico","docAbstract":"<p><span>Stable and declining oil and gas prices have changed the industry's price expectations and, along with depletion of promising exploration prospects, has resulted in reduced exploration. Even with intensive additional exploration, production in most U.S. areas is expected to decline. What does this imply for the drilling and petroleum industry suppliers in particular regions? How should planners in government and the private sector project and incorporate the consequences of these changes in their strategies? This paper answers these questions for the industry operating in the offshore Gulf of Mexico. Future oil and gas production, as well as demand for offshore drilling and production facilities, are shown to depend on the size distribution of undiscovered fields, their associated production costs, and oil and gas prices. Declining well productivity is a consequence of development of progressively smaller fields so that long-run drilling demand should not decline in proportion to the expected production decline. Calculations show a substantial payoff to the drilling industry, in terms of potential demand increases, if it can develop and implement cost reducing technologies. Implications of these results for other offshore producing areas such as the North Sea are also discussed.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0038-0121(86)90037-6","issn":"00380121","usgsCitation":"Attanasi, E.D., 1986, Regional resource depletion and industry activity: The case of oil and gas in the Gulf of Mexico: Socio-Economic Planning Sciences, v. 20, no. 5, p. 283-289, https://doi.org/10.1016/0038-0121(86)90037-6.","productDescription":"7 p.","startPage":"283","endPage":"289","numberOfPages":"7","costCenters":[],"links":[{"id":225338,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a550e4b0e8fec6cdbdee","contributors":{"authors":[{"text":"Attanasi, E. D. 0000-0001-6845-7160","orcid":"https://orcid.org/0000-0001-6845-7160","contributorId":107672,"corporation":false,"usgs":true,"family":"Attanasi","given":"E.","middleInitial":"D.","affiliations":[],"preferred":false,"id":369375,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70176398,"text":"70176398 - 1986 - Prototype operational earthquake prediction system","interactions":[],"lastModifiedDate":"2016-09-12T14:27:53","indexId":"70176398","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1437,"text":"Earthquakes & Volcanoes (USGS)","active":true,"publicationSubtype":{"id":10}},"title":"Prototype operational earthquake prediction system","docAbstract":"<p>An objective if the U.S. Earthquake Hazards Reduction Act of 1977 is to introduce into all regions of the country that are subject to large and moderate earthquakes, systems for predicting earthquakes and assessing earthquake risk. In 1985, the USGS developed for the Secretary of the Interior a program for implementation of a prototype operational earthquake prediction system in southern California.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"1986, Prototype operational earthquake prediction system: Earthquakes & Volcanoes (USGS), v. 18, no. 4, p. 151-152.","productDescription":"2 p.","startPage":"151","endPage":"152","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":328528,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57d7d1c3e4b090824ff98e0e","contributors":{"editors":[{"text":"Spall, Henry","contributorId":77933,"corporation":false,"usgs":true,"family":"Spall","given":"Henry","email":"","affiliations":[],"preferred":false,"id":648599,"contributorType":{"id":2,"text":"Editors"},"rank":1}]}}
,{"id":70186152,"text":"70186152 - 1986 - Application of the Flory-Huggins theory to the solubility of solids in glyceryl trioleate","interactions":[],"lastModifiedDate":"2020-01-18T11:13:37","indexId":"70186152","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5353,"text":"Journal of the Chemical Society, Faraday Transactions I","active":true,"publicationSubtype":{"id":10}},"title":"Application of the Flory-Huggins theory to the solubility of solids in glyceryl trioleate","docAbstract":"<div class=\"capsule__column-wrapper\"><div class=\"capsule__text\"><p>The conventional thermodynamic deviation for ideal solid–liquid solubilities is modified by substituting the Flory–Huggins model for Raoult's law. A comparison of published data for eleven solides in glyceryl trioleate with the predictions of the conventional and modified equations shows that the significantly higher athermal solubilities from the modified equation are in much better agreement with the experimental data. This suggests that discrepancies between the data and the predictions of the conventional model for ideal systems result from the inappropriate use of Raoult's law for systems with significant solute–solvent size disparity rather than from specific interactions.</p></div></div>","language":"English","publisher":"Royal Society of Chemistry","doi":"10.1039/F19868200243","usgsCitation":"Chiou, C.T., and Manes, M., 1986, Application of the Flory-Huggins theory to the solubility of solids in glyceryl trioleate: Journal of the Chemical Society, Faraday Transactions I, v. 82, p. 243-246, https://doi.org/10.1039/F19868200243.","productDescription":"4 p. ","startPage":"243","endPage":"246","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338776,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"82","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58de1954e4b02ff32c699cd3","contributors":{"authors":[{"text":"Chiou, Cary T. 0000-0002-8743-0702","orcid":"https://orcid.org/0000-0002-8743-0702","contributorId":189558,"corporation":false,"usgs":true,"family":"Chiou","given":"Cary","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":687682,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Manes, Milton","contributorId":189704,"corporation":false,"usgs":false,"family":"Manes","given":"Milton","email":"","affiliations":[],"preferred":false,"id":687683,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70197162,"text":"70197162 - 1986 - Paleomagnetism and K-Ar ages of volcanic rocks from Long Valley caldera, California","interactions":[],"lastModifiedDate":"2018-05-18T14:07:51","indexId":"70197162","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Paleomagnetism and K-Ar ages of volcanic rocks from Long Valley caldera, California","docAbstract":"<p><span>Paleomagnetic measurements and K‐Ar age determinations on volcanic rocks from Long Valley caldera, California, have enabled further refinement of eruptive activity within this large silicic volcanic center. K‐Ar age determinations show that postcaldera volcanic eruptions began 0.73 m.y. ago and continued periodically until about 50,000 years ago. The eruptions were not temporally random but tended to occur in distinct episodes separated by periods of quiescence. Volcanism in the western half of the caldera was particularly intense between 0.15 and 0.50 m.y. ago, when many units ranging in composition from basalt to rhyolite were erupted. An average of the virtual geomagnetic poles for 33 units from the caldera yields a paleomagnetic pole at 89.7°N, 138.4°E, (α</span><sub>95</sub><span><span>&nbsp;</span>= 5.1°), which is indistinguishable from the earth's rotational axis. The ancient geomagnetic field dispersion about this mean pole is 16.0°, with upper and lower limits of 19.3° and 13.6°, respectively.</span></p>","language":"English","publisher":"AGU","doi":"10.1029/JB091iB01p00633","usgsCitation":"Mankinen, E.A., Gromme, C.S., Dalrymple, G.B., Lanphere, M.A., and Bailey, R.A., 1986, Paleomagnetism and K-Ar ages of volcanic rocks from Long Valley caldera, California: Journal of Geophysical Research B: Solid Earth, v. 91, no. B1, p. 633-652, https://doi.org/10.1029/JB091iB01p00633.","productDescription":"20 p.","startPage":"633","endPage":"652","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":354329,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Long Valley Caldera","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -119.0833,\n              37.5833\n            ],\n            [\n              -118.67,\n              37.5833\n            ],\n            [\n              -118.67,\n              37.7667\n            ],\n            [\n              -119.0833,\n              37.7667\n            ],\n            [\n              -119.0833,\n              37.5833\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"91","issue":"B1","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5aff3835e4b0da30c1bfd9b1","contributors":{"authors":[{"text":"Mankinen, Edward A. 0000-0001-7496-2681 emank@usgs.gov","orcid":"https://orcid.org/0000-0001-7496-2681","contributorId":1054,"corporation":false,"usgs":true,"family":"Mankinen","given":"Edward","email":"emank@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":735870,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gromme, C. Sherman","contributorId":22236,"corporation":false,"usgs":true,"family":"Gromme","given":"C.","email":"","middleInitial":"Sherman","affiliations":[],"preferred":false,"id":735871,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dalrymple, G. Brent","contributorId":54564,"corporation":false,"usgs":true,"family":"Dalrymple","given":"G.","email":"","middleInitial":"Brent","affiliations":[],"preferred":false,"id":735872,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lanphere, Marvin A. alder@usgs.gov","contributorId":2696,"corporation":false,"usgs":true,"family":"Lanphere","given":"Marvin","email":"alder@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":735873,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bailey, Roy A.","contributorId":42576,"corporation":false,"usgs":true,"family":"Bailey","given":"Roy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":735874,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":800003,"text":"800003 - 1986 - Minerals, lands, and geology for the common defence and general welfare, Volume 3, 1904-1939 : A history of geology in relation to the development of public-land, federal-science, and mapping policies and the development of mineral resources in the United States from the 25th to the 60th year of the U.S. Geological Survey","interactions":[],"lastModifiedDate":"2018-09-21T11:09:30","indexId":"800003","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":15,"text":"Monograph"},"title":"Minerals, lands, and geology for the common defence and general welfare, Volume 3, 1904-1939 : A history of geology in relation to the development of public-land, federal-science, and mapping policies and the development of mineral resources in the United States from the 25th to the 60th year of the U.S. Geological Survey","docAbstract":"<p>Mrs. Rabbitt's third volume covers the years 1904 to 1939, from the beginning of the conservation movement under Theodore Roosevelt to the beginning of World War II. From a national perspective, these were years of great development and change in the use of energy, trouble in the coal industry, and a great expansion in the oil industry. They were also years in which the public perceived for the first time that the Nation's mineral resources are not infinite, and the mineral industry realized its dependence on international trade. In these years, water became an increasingly valuable commodity, and the need for a national mapping program became abundantly evident. These were also the years when the Federal Government for the most part practiced stringent economy in funding science, but State and municipal agencies increasingly sought the services of the Survey's topographic and water specialists to aid in the solution of local problems. The balance maintained between fundamental and practical research during the first 25 years was more than once upset during the next 25 years, but the successful struggle to maintain a significant level of research laid the groundwork for the tremendous expansion in the Survey in the subsequent years.</p>","language":"English","publisher":"U.S. Government Printing Office","publisherLocation":"Washington, D.C.","usgsCitation":"Rabbitt, M.C., 1986, Minerals, lands, and geology for the common defence and general welfare, Volume 3, 1904-1939 : A history of geology in relation to the development of public-land, federal-science, and mapping policies and the development of mineral resources in the United States from the 25th to the 60th year of the U.S. Geological Survey, v. 3, x, 479 p.","productDescription":"x, 479 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":366,"text":"Library","active":true,"usgs":true},{"id":37226,"text":"Core Science Analytics, Synthesis, and Libraries","active":true,"usgs":true}],"links":[{"id":91253,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/book/1986/rabbitt-vol3/report.pdf","text":"Report","size":"172.39 MB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":19872,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://www.archive.org/details/historyv3","linkFileType":{"id":5,"text":"html"}},{"id":126105,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/book/1986/rabbitt-vol3/report-thumb.jpg"}],"volume":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fae4b07f02db5f3da9","contributors":{"authors":[{"text":"Rabbitt, Mary C.","contributorId":94242,"corporation":false,"usgs":true,"family":"Rabbitt","given":"Mary","email":"","middleInitial":"C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":308006,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70176399,"text":"70176399 - 1986 - Seismic Computerized Alert Network","interactions":[],"lastModifiedDate":"2016-09-12T14:36:40","indexId":"70176399","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1437,"text":"Earthquakes & Volcanoes (USGS)","active":true,"publicationSubtype":{"id":10}},"title":"Seismic Computerized Alert Network","docAbstract":"<p>In 1985 the USGS devised a model for a Seismic Computerized Alert Network (SCAN) that would use continuous monitoring of seismic data from existing types of instruments to provide automatic, highly-reliable early warnings of earthquake shaking. In a large earthquake, substantial damaging ground motions may occur at great distances from the earthquake's epicenter.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"1986, Seismic Computerized Alert Network: Earthquakes & Volcanoes (USGS), v. 18, no. 4, p. 153-153.","productDescription":"1 p.","startPage":"153","endPage":"153","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":328529,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57d7d1c5e4b090824ff98e3c","contributors":{"editors":[{"text":"Spall, Henry","contributorId":77933,"corporation":false,"usgs":true,"family":"Spall","given":"Henry","email":"","affiliations":[],"preferred":false,"id":648602,"contributorType":{"id":2,"text":"Editors"},"rank":1}]}}
,{"id":1001480,"text":"1001480 - 1986 - Nest sites of ducks in grazed mixed-grass prairie in North Dakota","interactions":[],"lastModifiedDate":"2020-02-21T13:34:00","indexId":"1001480","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","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":"Nest sites of ducks in grazed mixed-grass prairie in North Dakota","docAbstract":"Habitat use and nesting success of seven species of dabbling ducks were evaluated in five vegetative associations within grazed mixed-grass prairie in central North Dakota. During 1976-80, 548 nests were found on 412 ha of grazed prairie for an annual average density of 27 nests/100 ha. Numbers of nests found ranged from 1/100 ha in 1977 (a drought year) to 58/100 ha in 1979 (a very wet year), reflecting the variability that may be expected in a dynamic prairie wetland environment. Nesting success ranged from an average of 23% in the western snowberry (Symphoricarpos occidentalis) association to 34% in the mixed-grass association. Forty-two percent of the mallard (Anas platyrhynchos) nests and 35% of the gadwall (A. strepera) nests were in patches of western snowberry and/or Wood's rose (Rosa woodsii) that made up 2% of the available cover. Numbers of nests of blue-winged teal (A. discors) and northern shoveler (A. clypeata) were highest in cool-season grasses, especially green needlegrass (Stipa viridula) and western wheatgrass (Agropyron smithii). Height/density (HD) of residual cover decreased exponentially with increased grazing pressure. Use of grazed prairie by blue-winged teal was maximized when the HD of residual cover was 0.5 dm or higher, as could be maintained under light grazing. Results of this study indicated that properly grazed mixed-grass prairie can provide adequate nesting habitat for dabbling ducks. We recommend that preservation and sound ecological management be focused on large tracts of mixed-grass prairie with complexes of seasonal and semipermanent wetlands.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Prairie Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Duebbert, H., Lokemoen, J.T., and Sharp, D., 1986, Nest sites of ducks in grazed mixed-grass prairie in North Dakota: Prairie Naturalist, v. 18, no. 2, p. 99-108.","productDescription":"10 p.","startPage":"99","endPage":"108","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":372518,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://arc.lib.montana.edu/range-science/item/334"},{"id":133797,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North 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T.","contributorId":79049,"corporation":false,"usgs":true,"family":"Lokemoen","given":"J.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":311110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sharp, D.E.","contributorId":34460,"corporation":false,"usgs":true,"family":"Sharp","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":311109,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1001395,"text":"1001395 - 1986 - Molt chronology of northern pintails in California","interactions":[],"lastModifiedDate":"2024-11-07T15:37:18.018205","indexId":"1001395","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","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":"Molt chronology of northern pintails in California","docAbstract":"<p>Intensity and chronology of molt in 10 feather groups (head, neck, breast, belly, back, rump, side, scapular, tertial, and tail) were measured using percentages of developing feathers (pinfeathers) converted to molt scores (0-100) in samples plucked monthly from northern pintails (<i>Anas acuta</i>) collected by shooting from August through March 1980-82 in the Sacramento Valley, California. Data to supplement sample size of immatures were obtained from October 1982 through January 1983. Molt scores of the prealternate molt peaked (30-40% pinfeathers) in immature and adult females and adult males in October when nearly all feather groups were molting. The prealternate molt in immature males did not peak until November. Adult males nearly completed this molt by December; no new feather growth occurred after January. Immature males were still growing new neck, side, rump, scapular, and tertial feathers in December. Molt scores of the prebasic molt among adult and immature females peaked (30-40% new growth) in February in both years. The prealternate molt of breast and belly feathers (both sexes) peaked earlier (Sep) than molt of most other feathers (Oct). Increased molt scores in peak months were a function of a disproportionate increase of molt activity within each feather group and the number of feather groups with molt. Molt scores of the prebasic molt in adult females were less during December and January of the dry (1980-81) than the wet (1981-82) winter. Restriction or delay of molt may conserve energy or other nutrients during poor habitat conditions.</p>","language":"English","publisher":"Wiley","doi":"10.2307/3801488","usgsCitation":"Miller, M.R., 1986, Molt chronology of northern pintails in California: Journal of Wildlife Management, v. 50, no. 1, p. 57-64, https://doi.org/10.2307/3801488.","productDescription":"8 p.","startPage":"57","endPage":"64","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133773,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","city":"Sacramento","otherGeospatial":"Sacramento Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -121.9196340147235,\n              38.816933501046236\n            ],\n            [\n              -121.9196340147235,\n              38.360732419713315\n            ],\n            [\n              -120.78925476315183,\n              38.360732419713315\n            ],\n            [\n              -120.78925476315183,\n              38.816933501046236\n            ],\n            [\n              -121.9196340147235,\n              38.816933501046236\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"50","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db69925c","contributors":{"authors":[{"text":"Miller, Michael R.","contributorId":45796,"corporation":false,"usgs":false,"family":"Miller","given":"Michael","email":"","middleInitial":"R.","affiliations":[{"id":12709,"text":"Department of Animal Science, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA","active":true,"usgs":false}],"preferred":false,"id":310968,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1001475,"text":"1001475 - 1986 - Comparison of wetland drainage during and after protection by 20-year easements","interactions":[],"lastModifiedDate":"2017-11-16T10:28:45","indexId":"1001475","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","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":"Comparison of wetland drainage during and after protection by 20-year easements","docAbstract":"We determined drainage rates for wetlands in North and South Dakota with U.S. Fish and Wildlife Service 20-year easements, during (1961-1980) and after (1981-1984) contract protection. Average annual drainage rates were 10 times higher during the four postcontract years than during the 20 contract years on the same tracts of land. Twenty-year easements only delayed wetland drainage, and are of limited value for securing a long-term habitat base.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Prairie Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Higgins, K., and Woodward, R., 1986, Comparison of wetland drainage during and after protection by 20-year easements: Prairie Naturalist, v. 12, no. 3/4, p. 89-91.","productDescription":"3 p.","startPage":"89","endPage":"91","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133811,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"3/4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ee4b07f02db6aa69b","contributors":{"authors":[{"text":"Higgins, K.F.","contributorId":55767,"corporation":false,"usgs":true,"family":"Higgins","given":"K.F.","email":"","affiliations":[],"preferred":false,"id":311097,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Woodward, R.O.","contributorId":20687,"corporation":false,"usgs":true,"family":"Woodward","given":"R.O.","email":"","affiliations":[],"preferred":false,"id":311096,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030615,"text":"70030615 - 1986 - Cambrian nepheline syenite complex at Jabal Sawda, Midyan region, Kingdom of Saudi Arabia","interactions":[],"lastModifiedDate":"2024-02-27T01:26:14.356669","indexId":"70030615","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2147,"text":"Journal of African Earth Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Cambrian nepheline syenite complex at Jabal Sawda, Midyan region, Kingdom of Saudi Arabia","docAbstract":"<div id=\"preview-section-abstract\"><div id=\"abstracts\" class=\"Abstracts u-font-serif text-s\"><div id=\"ab1\" class=\"abstract author\" lang=\"en\"><div id=\"aep-abstract-sec-id9\"><p>The only nepheline syenite complex presently known in the Arabian Shield is at Jabal Sawda, about 30 km S of Haql in the extreme NW of Saudi Arabia. It is a post-tectonic, composite intrusion with a crudely concentric structure. A core of leuco-nepheline syenite, a partial ring of mela-nepheline syenite, and an almost complete outer ring of alkali-feldspar syenite are the main rock units. Several mega-inclusions of porphyritic nepheline syenite, nepheline monzosyenite, malignite and ijolite are present in the leuco-nepheline syenite. The chemical composition is notable for very high values of Al<sub>2</sub>O<sub>3</sub>, Na<sub>2</sub>O, Ba, La, Nb, Sr and Zr. U<img src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\" alt=\"single bond\" data-mce-src=\"https://sdfestaticassets-us-east-1.sciencedirectassets.com/shared-assets/55/entities/sbnd.gif\">Pb isotope dating indicates an emplacement age of 553 ± 4 Ma, one of an increasing number of reliable Cambrian isotope dates in the northern Red Sea region.</p></div></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/S0899-5362(86)80075-6","issn":"08995","usgsCitation":"Liddicoat, W., Ramsay, C., and Hedge, C., 1986, Cambrian nepheline syenite complex at Jabal Sawda, Midyan region, Kingdom of Saudi Arabia: Journal of African Earth Sciences, v. 4, no. C, p. 139-150, https://doi.org/10.1016/S0899-5362(86)80075-6.","productDescription":"12 p.","startPage":"139","endPage":"150","numberOfPages":"12","costCenters":[],"links":[{"id":239566,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","issue":"C","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f32ae4b0c8380cd4b62e","contributors":{"authors":[{"text":"Liddicoat, W.K.","contributorId":67727,"corporation":false,"usgs":true,"family":"Liddicoat","given":"W.K.","email":"","affiliations":[],"preferred":false,"id":427876,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ramsay, C.R.","contributorId":64890,"corporation":false,"usgs":true,"family":"Ramsay","given":"C.R.","email":"","affiliations":[],"preferred":false,"id":427875,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hedge, C. E.","contributorId":73611,"corporation":false,"usgs":true,"family":"Hedge","given":"C. E.","affiliations":[],"preferred":false,"id":427877,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1001443,"text":"1001443 - 1986 - Spring and summer survival of female mallards from northcentral Minnesota","interactions":[],"lastModifiedDate":"2024-11-07T15:44:30.17188","indexId":"1001443","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","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":"Spring and summer survival of female mallards from northcentral Minnesota","docAbstract":"<p>Seasonal survival of 109 adult female mallards (<i>Anas platyrhynchos</i>) fitted with radio transmitters was evaluated in northcentral Minnesota during 1968-74. Survival rates for the 169-day breeding and postbreeding period were: 1.0 during nest initiation (36 days), 0.798 during incubation (28 days), 0.943 during brood rearing (51 days), 0.947 during molt (26 days), and 1.0 during premigration (28 days). Survival for the 169-day spring-summer period was 0.713 for adult females remaining on the study area. Fall-winter survival was estimated at 0.881 for those adult birds remaining on the study area throughout the summer. The data confirm speculation on relative risk to females of various phases of the mallard reproductive cycle and support previous conclusions that the northcentral Minnesota breeding mallard population is not self sustaining. The value of learning further details of processes affecting specific seasonal mortality factors for both adult and young waterfowl is emphasized.</p>","language":"English","publisher":"Wiley","doi":"10.2307/3801485","usgsCitation":"Kirby, R., and Cowardin, L.M., 1986, Spring and summer survival of female mallards from northcentral Minnesota: Journal of Wildlife Management, v. 50, no. 1, p. 38-43, https://doi.org/10.2307/3801485.","productDescription":"6 p.","startPage":"38","endPage":"43","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133702,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Minnesota","otherGeospatial":"Chippewa National Forest, northcentral Minnesota","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -94.43855212948581,\n              47.97945086109905\n            ],\n            [\n              -94.43855212948581,\n              47.31104204205181\n            ],\n            [\n              -93.03404030322343,\n              47.31104204205181\n            ],\n            [\n              -93.03404030322343,\n              47.97945086109905\n            ],\n            [\n              -94.43855212948581,\n              47.97945086109905\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"50","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4a22","contributors":{"authors":[{"text":"Kirby, Ronald E.","contributorId":117972,"corporation":false,"usgs":true,"family":"Kirby","given":"Ronald E.","affiliations":[],"preferred":false,"id":311033,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cowardin, Lewis M.","contributorId":34574,"corporation":false,"usgs":true,"family":"Cowardin","given":"Lewis","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":311034,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1001319,"text":"1001319 - 1986 - Feeding ecology of sandhill cranes during spring migration in Nebraska","interactions":[],"lastModifiedDate":"2020-03-27T07:08:42","indexId":"1001319","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","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":"Feeding ecology of sandhill cranes during spring migration in Nebraska","docAbstract":"We studied the food habits of midcontinent sandhill cranes (Grus canadensis) during spring 1978 and 1979 at their primary staging area along the Platte River and compared population food and foraging habitat requirements with availability. Crane diets varied among the 3 principal foraging habitats, but not between sexes, ages, or years. Cranes feeding in cornfields ate >99% corn (total dry wt); those feeding in native grasslands and alfalfa fields consumed 79-99% invertebrates. The composite diet of cranes was 97% corn and 3% invertebrates, including 2% earthworms, 0.5% snails, and 0.5% insects. Presumably, corn provided energy, whereas invertebrates from grasslands and alfalfa fields provided supplemental nutrients to compensate for protein and calcium deficiencies in corn. The mean density of waste corn decreased (P < 0.05) from 399 kg/ha in November, to 205 kg/ha in early March, to 128 kg/ha after departure of the cranes. Simulations of population energetics indicated that 450,000-550,000 cranes would consume 20-25% of the waste corn available in the Platte River Valley during spring. Corn availability is unlikely to affect crane use of staging areas unless cropping practices or fall tillage reduce the acreage of harvested cornfields by >50%. Management by burning, haying, and grazing is compatible with crane use of grasslands, and reduced-till farming could benefit cranes by increasing invertebrate populations.","language":"English","doi":"10.2307/3801490","usgsCitation":"Reinecke, K.J., and Krapu, G., 1986, Feeding ecology of sandhill cranes during spring migration in Nebraska: Journal of Wildlife Management, v. 50, no. 1, p. 71-79, https://doi.org/10.2307/3801490.","productDescription":"9 p.","startPage":"71","endPage":"79","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":486862,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2307/3801490","text":"Publisher Index Page"},{"id":133548,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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,{"id":96378,"text":"96378 - 1986 - Evaluation of waterfowl production at Union Slough National Wildlife Refuge","interactions":[],"lastModifiedDate":"2012-02-02T00:04:00","indexId":"96378","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":21,"text":"Thesis"},"publicationSubtype":{"id":28,"text":"Thesis"},"title":"Evaluation of waterfowl production at Union Slough National Wildlife Refuge","docAbstract":"No abstract available at this time","language":"English","publisher":"Iowa State University","publisherLocation":"Ames, IA","usgsCitation":"Fleskes, J., 1986, Evaluation of waterfowl production at Union Slough National Wildlife Refuge, 139 p.","productDescription":"139 p.","startPage":"139","numberOfPages":"139","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":127718,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a08e4b07f02db5f9efb","contributors":{"authors":[{"text":"Fleskes, J. P.","contributorId":98661,"corporation":false,"usgs":true,"family":"Fleskes","given":"J. P.","affiliations":[],"preferred":false,"id":299535,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70184353,"text":"70184353 - 1986 - Scale-dependent correlation of seabirds with schooling fish in a coastal ecosystem","interactions":[],"lastModifiedDate":"2017-03-07T17:03:54","indexId":"70184353","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2663,"text":"Marine Ecology Progress Series","active":true,"publicationSubtype":{"id":10}},"title":"Scale-dependent correlation of seabirds with schooling fish in a coastal ecosystem","docAbstract":"<p>The distribution of piscivorous seabirds relative to schooling fish was investigated by repeated censusing of 2 intersecting transects in the Avalon Channel, which carries the Labrador Current southward along the east coast of Newfoundland. Murres (primarily common murres <i>Uria aalge</i>), Atlantic puffins <i>Fratercula arctica</i>, and schooling fish (primarily capelin <i>Mallotus villosus</i>) were highly aggregated at spatial scales ranging from 0.25 to 15 km. Patchiness of murres, puffins and schooling fish was scale-dependent, as indicated by significantly higher variance-to-mean ratios at large measurement distances than at the minimum distance, 0.25 km. Patch scale of puffins ranged from 2.5 to 15 km, of murres from 3 to 8.75 km, and of schooling fish from 1.25 to 15 km. Patch scale of birds and schooling fish was similar m 6 out of 9 comparisons. Correlation between seabirds and schooling birds was significant at the minimum measurement distance in 6 out of 12 comparisons. Correlation was scale-dependent, as indicated by significantly higher coefficients at large measurement distances than at the minimum distance. Tracking scale, as indicated by the maximum significant correlation between birds and schooling fish, ranged from 2 to 6 km. Our analysis showed that extended aggregations of seabirds are associated with extended aggregations of schooling fish and that correlation of these marine carnivores with their prey is scale-dependent.</p>","language":"English","publisher":"Inter-Research Science Center","usgsCitation":"Schneider, D.C., and Piatt, J.F., 1986, Scale-dependent correlation of seabirds with schooling fish in a coastal ecosystem: Marine Ecology Progress Series, v. 32, p. 237-246.","productDescription":"10 p.","startPage":"237","endPage":"246","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":336992,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":336990,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.int-res.com/abstracts/meps/v32/","text":"Volume 32 on Journals's Website"}],"country":"Canada","state":"Newfoundland","otherGeospatial":"Avalon Channel, Grand Banks","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -53.5638427734375,\n              46.35451083736523\n            ],\n            [\n              -51.7620849609375,\n              46.35451083736523\n            ],\n            [\n              -51.7620849609375,\n              47.908978314728714\n            ],\n            [\n              -53.5638427734375,\n              47.908978314728714\n            ],\n            [\n              -53.5638427734375,\n              46.35451083736523\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"32","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58bfd51ae4b014cc3a3ba64d","contributors":{"authors":[{"text":"Schneider, Davod C.","contributorId":7800,"corporation":false,"usgs":false,"family":"Schneider","given":"Davod","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":681137,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":681138,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":81432,"text":"81432 - 1986 - Evaluation of hatchery-reared lake trout for reestablishment of populations in the Apostle Islands Region of Lake Superior, 1960-84","interactions":[],"lastModifiedDate":"2023-03-29T16:52:57.704955","indexId":"81432","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Evaluation of hatchery-reared lake trout for reestablishment of populations in the Apostle Islands Region of Lake Superior, 1960-84","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Fish culture in fisheries management","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"American Fisheries Society","publisherLocation":"Bethesda, MD","usgsCitation":"Krueger, C., Swanson, B.L., and Selgeby, J.H., 1986, Evaluation of hatchery-reared lake trout for reestablishment of populations in the Apostle Islands Region of Lake Superior, 1960-84, chap. <i>of</i> Fish culture in fisheries management, p. 93-107.","productDescription":"15 p.","startPage":"93","endPage":"107","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":127752,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","otherGeospatial":"Apostle Islands","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -90.3027765005205,\n              47.099826961793156\n            ],\n            [\n              -91.00042315083726,\n              47.099826961793156\n            ],\n            [\n              -91.00042315083726,\n              46.745000052420124\n            ],\n            [\n              -90.3027765005205,\n              46.745000052420124\n            ],\n            [\n              -90.3027765005205,\n              47.099826961793156\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fad59","contributors":{"editors":[{"text":"Stroud, R.H.","contributorId":112490,"corporation":false,"usgs":true,"family":"Stroud","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":504081,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Krueger, Charles C.","contributorId":67821,"corporation":false,"usgs":false,"family":"Krueger","given":"Charles C.","affiliations":[{"id":7019,"text":"Great Lakes Fishery Commission","active":true,"usgs":false}],"preferred":false,"id":295355,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swanson, Bruce L.","contributorId":105660,"corporation":false,"usgs":true,"family":"Swanson","given":"Bruce","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":295357,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Selgeby, James H.","contributorId":89828,"corporation":false,"usgs":true,"family":"Selgeby","given":"James","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":295356,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1001488,"text":"1001488 - 1986 - Western Stump Lake, a major canvasback staging area in eastern North Dakota","interactions":[],"lastModifiedDate":"2017-12-29T12:41:02","indexId":"1001488","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","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":"Western Stump Lake, a major canvasback staging area in eastern North Dakota","docAbstract":"Large numbers of waterfowl, especially canvasback (Aythya valisineria), used Western Stump Lake as a staging area during most of October 1985. Selection of the lake as a conditioning site by this species likely is caused by extensive, shallow-water beds of sago pondweed (Potamogeton pectinatus) and lack of human disturbance. A brief limnological and historical account of the lake is provided.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Prairie Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Kantrud, H., 1986, Western Stump Lake, a major canvasback staging area in eastern North Dakota: Prairie Naturalist, v. 18, no. 4, p. 247-253.","productDescription":"7 p.","startPage":"247","endPage":"253","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133630,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e486ee4b07f02db50c371","contributors":{"authors":[{"text":"Kantrud, H.A.","contributorId":28553,"corporation":false,"usgs":true,"family":"Kantrud","given":"H.A.","email":"","affiliations":[],"preferred":false,"id":311125,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1015398,"text":"1015398 - 1986 - [Book review] Fish immunology, edited by M. J. Manning and M. F. Tatner","interactions":[],"lastModifiedDate":"2012-10-11T17:16:22","indexId":"1015398","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"[Book review] Fish immunology, edited by M. J. Manning and M. F. Tatner","docAbstract":"Review of: Fish Immunology. Edited by M. J. Manning and M. F. Tatner. Academic Press, London. 1985. 374 pages. $32.50. Reviewed by B. R. Griffin, Fish Farming Experimental Station, U.S. Fish and Wildlife Service, Stuttgart, Arkansas 72160, USA.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Taylor & Francis","publisherLocation":"Philadelphia, PA","doi":"10.1577/00028487.1985.10492818","collaboration":"87-119/FF","usgsCitation":"Griffin, B., 1986, [Book review] Fish immunology, edited by M. J. Manning and M. F. Tatner: Transactions of the American Fisheries Society, v. 115, no. 4, p. 641-642, https://doi.org/10.1577/00028487.1985.10492818.","productDescription":"2 p.","startPage":"641","endPage":"642","numberOfPages":"2","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":132339,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":262527,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/00028487.1985.10492818"}],"volume":"115","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f8e4b07f02db5f2c88","contributors":{"authors":[{"text":"Griffin, B.R.","contributorId":62169,"corporation":false,"usgs":true,"family":"Griffin","given":"B.R.","email":"","affiliations":[],"preferred":false,"id":322977,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015562,"text":"70015562 - 1986 - The evolution of young silicic lavas at Medicine Lake Volcano, California: Implications for the origin of compositional gaps in calc-alkaline series lavas","interactions":[],"lastModifiedDate":"2012-03-12T17:18:55","indexId":"70015562","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1336,"text":"Contributions to Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"The evolution of young silicic lavas at Medicine Lake Volcano, California: Implications for the origin of compositional gaps in calc-alkaline series lavas","docAbstract":"At Medicine Lake Volcano, California, the compositional gap between andesite (57-62 wt.% SiO2) and rhyolite (73-74 wt.% SiO2) has been generated by fractional crystallization. Assimilation of silicic crust has also occurred along with fractionation. Two varieties of inclusions found in Holocene rhyolite flows, hornblende gabbros and aphyric andesites, provide information on the crystallization path followed by lavas parental to the rhyolite. The hornblende gabbros are magmatic cumulate residues and their mineral assemblages are preserved evidence of the phases that crystallized from an andesitic precursor lava to generate the rhyolite lavas. The andesitic inclusions represent samples of a parental andesite and record the early part of the differentiation history. Olivine, plagioclase and augite crystallization begins the differentiation history, followed by the disappearance of olivine and augite through reaction with the liquid to form orthopyroxene and amphibole. Further crystallization of the assemblage plagioclase, amphibole, orthopyroxene, magnetite, and apatite from a high-SiO2 andesite leads to rhyolite. This final crystallization process occurs on a cotectic that is nearly horizontal in temperature-composition space. Since a large amount of crystallization occurs over a limited temperature interval, a compositional gap develops between rhyolite and high SiO2 andesite. Liquidus surfaces with shallow slopes in temperature-composition space are characteristic of several late-stage crystallization assemblages in the andesite to rhyolite compositional range. Experimentally produced plagioclase+ amphibole+orthopyroxene+magnetite and plagioclase+ augite+low-Ca pyroxene+magnetite cotectics have liquidus slopes that are nearly flat. At other calc-alkaline volcanic centers crystallization processes involving large compositional changes over small temperature intervals may also be important in the development of bimodal volcanism (i.e. the existence of a composition gap). At Mt. Mazama and Mt. St. Helens, USA and Aso Caldera and Shikotsu, Japan the amphibole-bearing assemblage was important. At Krakatau, Indonesia and Katmai, USA, an augite+orthopyroxene-bearing assemblage was important. In addition to its role in the production of a compositional gap between intermediate and rhyolitic lavas, the crystallization process increases the H2O content of the residual liquid. This rapid increase in residual liquid volatile content which results from the precipitation of a large proportion of crystalline solids may be an important factor among several that lead to explosive silicic eruptions. ?? 1986 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Contributions to Mineralogy and Petrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00572157","issn":"00107999","usgsCitation":"Grove, T., and Donnelly-Nolan, J., 1986, The evolution of young silicic lavas at Medicine Lake Volcano, California: Implications for the origin of compositional gaps in calc-alkaline series lavas: Contributions to Mineralogy and Petrology, v. 92, no. 3, p. 281-302, https://doi.org/10.1007/BF00572157.","startPage":"281","endPage":"302","numberOfPages":"22","costCenters":[],"links":[{"id":205479,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00572157"},{"id":224428,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"92","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505babeae4b08c986b323171","contributors":{"authors":[{"text":"Grove, T.L.","contributorId":22088,"corporation":false,"usgs":true,"family":"Grove","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":371229,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Donnelly-Nolan, J.M.","contributorId":104936,"corporation":false,"usgs":false,"family":"Donnelly-Nolan","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":371230,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70015564,"text":"70015564 - 1986 - Paleodrainages of the Eastern Sahara-The radar rivers revisited (SIR-A/B Implications for a Mid-Tertiary Trans-Afnrcan Drainage System)","interactions":[],"lastModifiedDate":"2024-01-25T17:26:59.345904","indexId":"70015564","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1944,"text":"IEEE Transactions on Geoscience and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Paleodrainages of the Eastern Sahara-The radar rivers revisited (SIR-A/B Implications for a Mid-Tertiary Trans-Afnrcan Drainage System)","docAbstract":"<p><span>A complex history of Cenozoic fluvial activity in the presently hyperarid Eastern Sahara is inferred from SIR data and postflight field investigations in southwest Egypt and northwest Sudan. SIR images were coregistered with Landsat and existing maps as a guide to exploration of the buried paleodrainages (radar rivers) first discovered by SIR-A. Field observations explain the radar responses of three types of radar rivers, RR-1, RR-2, and RR-3. RR-1 (broad, aggraded valleys or basins filled with alluvium) generally give a dark response relative to the surrounding radar-bright tone of the wind-roughened, discontinuously sand-covered bedrock of the remnant interfluves. The alluvial fill in some of the RR-1 valleys gives a locally intermediate to bright response where cemented by diagenetic CaCO3 (caliche). The RR-2 type (braided channels inset in the RR-1 valleys) are filled with noncalichified, loose sediment, and are visible on SIR because of the \"caliche effect\"-the dark response of unconsolidated alluvium in the inset channels contrasts with the brighter response of calichified alluvium in the broad valleys. The third type, RR-3 (narrow, long, bedrock-incised channels), which are partly visible on the ground and on Landsat in areas where the sand sheet is patchy, are conspicuous on SIR because the dark response of their unconsolidated channel fill contrasts with the brighter response of the surrounding bedrock. Disconformably overlying and concealing the RR-1 valleys, the RR- 2 channels, and parts of the RR-3 channels are eolian sand-sheetsheet de- deposits, which in turn are locally overridden by trains of barchan dunes.</span></p>","language":"English","publisher":"IEEE","doi":"10.1109/TGRS.1986.289678","issn":"01962892","usgsCitation":"McCauley, J., Breed, C.S., Schaber, G.G., McHugh, W.P., Issawi, B., Haynes, C.V., Grolier, M.J., and El Kilani, A., 1986, Paleodrainages of the Eastern Sahara-The radar rivers revisited (SIR-A/B Implications for a Mid-Tertiary Trans-Afnrcan Drainage System): IEEE Transactions on Geoscience and Remote Sensing, v. GE-24, no. 4, p. 624-648, https://doi.org/10.1109/TGRS.1986.289678.","productDescription":"25 p.","startPage":"624","endPage":"648","numberOfPages":"25","costCenters":[],"links":[{"id":224430,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"GE-24","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7328e4b0c8380cd76ec4","contributors":{"authors":[{"text":"McCauley, John F.","contributorId":54973,"corporation":false,"usgs":true,"family":"McCauley","given":"John F.","affiliations":[],"preferred":false,"id":371236,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Breed, Carlos S.","contributorId":51469,"corporation":false,"usgs":true,"family":"Breed","given":"Carlos","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":371235,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schaber, Gerald G.","contributorId":12511,"corporation":false,"usgs":true,"family":"Schaber","given":"Gerald","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":371234,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McHugh, William P.","contributorId":70928,"corporation":false,"usgs":true,"family":"McHugh","given":"William","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":371237,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Issawi, Bahay","contributorId":96423,"corporation":false,"usgs":true,"family":"Issawi","given":"Bahay","email":"","affiliations":[],"preferred":false,"id":371239,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Haynes, C. Vance","contributorId":75283,"corporation":false,"usgs":true,"family":"Haynes","given":"C.","email":"","middleInitial":"Vance","affiliations":[],"preferred":false,"id":371238,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Grolier, Maurice J.","contributorId":98292,"corporation":false,"usgs":true,"family":"Grolier","given":"Maurice","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":371240,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"El Kilani, Ali","contributorId":98886,"corporation":false,"usgs":true,"family":"El Kilani","given":"Ali","email":"","affiliations":[],"preferred":false,"id":371241,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":1014428,"text":"1014428 - 1986 - You asked for it! The fathead minnow: an overview on propagation, culturing, and uses","interactions":[],"lastModifiedDate":"2012-02-02T00:04:08","indexId":"1014428","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":855,"text":"Aquaculture Magazine","active":true,"publicationSubtype":{"id":10}},"title":"You asked for it! The fathead minnow: an overview on propagation, culturing, and uses","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Aquaculture Magazine","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","collaboration":"86-100/FF","usgsCitation":"Martin, M., 1986, You asked for it! The fathead minnow: an overview on propagation, culturing, and uses: Aquaculture Magazine, v. 12, no. 4, p. 48-51.","productDescription":"p. 48-51","startPage":"48","endPage":"51","numberOfPages":"4","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":129662,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f4e4b07f02db5f01e8","contributors":{"authors":[{"text":"Martin, M.","contributorId":103217,"corporation":false,"usgs":true,"family":"Martin","given":"M.","affiliations":[],"preferred":false,"id":320351,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
]}