{"pageNumber":"4813","pageRowStart":"120300","pageSize":"25","recordCount":184617,"records":[{"id":70014728,"text":"70014728 - 1987 - Gray whale and walrus feeding excavation on the Bering Shelf, Alaska","interactions":[],"lastModifiedDate":"2024-05-20T23:18:35.2565","indexId":"70014728","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2450,"text":"Journal of Sedimentary Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Gray whale and walrus feeding excavation on the Bering Shelf, Alaska","docAbstract":"<div><div id=\"12459349\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Sidescan sonar has been used to delineate benthic feeding structures of the California gray whale ( Eschrichtius robustus ) and Pacific walrus ( Odobenus rosmarus divergens ) on the northeastern Bering Shelf. The gray whales (average mouth length, 2.0 m), when suction feeding on infaunal amphipods, create shallow pits in the sea floor, typically 2.5 m x 1.5 m x 10 cm deep, which are distinct and mappable on sidescan sonographs. Similarly, walrus, when foraging for shallow clams, create long, linear feeding furrows that average 47 x 0.4 x 0.1 m (length-width-depth). The distribution of the whale pits over 22,000 km<span>&nbsp;</span><sup>2</sup><span>&nbsp;</span>of the Bering Shelf closely matches 1) sightings of feeding whales identified by mud plumes; 2) the distribution of ampeliscid amphipods, the gray whale's main prey; and 3) the distribution of a transgressive inner-shelf fine sand that serves as a substrate for the amphipods. The walrus' furrows are recognized over 6,600 km<span>&nbsp;</span><sup>2</sup><span>&nbsp;</span>of variable muddier or coarser-grained substrate with clam-rich benthic communities that surround the fine sand substrate of whale feeding areas. The whale feeding pits are commonly enlarged and oriented by seasonal storm-related scour. Nonenlarged pits (less than 5.3 m<span>&nbsp;</span><sup>2</sup><span>&nbsp;</span>in area) form a discrete statistical population that we define as fresh . We estimate that a minimum of 5.6 percent (1,200 km<span>&nbsp;</span><sup>2</sup><span>&nbsp;</span>) of the feeding area of the northeastern Bering Shelf (22,000 km<span>&nbsp;</span><sup>2</sup><span>&nbsp;</span>) was covered by fresh pits made by whales during the 1980 feeding season. Assuming that the average pit depth is 10 cm, a minimum of 120 x 10<span>&nbsp;</span><sup>6</sup><span>&nbsp;</span>m<span>&nbsp;</span><sup>3</sup><span>&nbsp;</span>(172 x 10<span>&nbsp;</span><sup>6</sup><span>&nbsp;</span>metric tons) of sediment, equivalent to about three times the yearly sediment load of the Yukon River, is excavated and injected into the water column by as many as 16,000 gray whales feeding in northeastern Bering Sea each season. As a result of 1) sediment resuspension by whales, 2) average current speeds of 10.7 cm/s northward during the feeding season, and 3) enhanced post-feeding current scour because of bottom roughening, the following occur: the majority of the clay fraction (4.3 x 10<span>&nbsp;</span><sup>6</sup><span>&nbsp;</span>metric tons) of resuspended sediment is advected to the Chukchi Sea each year; sand gradually is transported northward and fills old feeding pits; modern mud does not accumulate in this region; and the whale-disturbed sand lacks physical sedimentary structures and matrix mud. Walrus feeding features are smaller, formed in higher-energy environments, and modified more rapidly than whale feeding pits. The amount of sediment reworking by walrus feeding may nearly equal that of whale feeding, but this cannot be quantified accurately.</p></div></div>","language":"English","publisher":"SEPM","doi":"10.1306/212F8B4D-2B24-11D7-8648000102C1865D","issn":"00224472","usgsCitation":"Nelson, C., Johnson, K., and Barber, J.H., 1987, Gray whale and walrus feeding excavation on the Bering Shelf, Alaska: Journal of Sedimentary Petrology, v. 57, no. 3, p. 419-430, https://doi.org/10.1306/212F8B4D-2B24-11D7-8648000102C1865D.","productDescription":"12 p.","startPage":"419","endPage":"430","numberOfPages":"12","costCenters":[],"links":[{"id":225973,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2a49e4b0c8380cd5b04b","contributors":{"authors":[{"text":"Nelson, C.H.","contributorId":88346,"corporation":false,"usgs":true,"family":"Nelson","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":369144,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, K.R.","contributorId":28599,"corporation":false,"usgs":true,"family":"Johnson","given":"K.R.","email":"","affiliations":[],"preferred":false,"id":369142,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barber, J. H. Jr.","contributorId":82275,"corporation":false,"usgs":true,"family":"Barber","given":"J.","suffix":"Jr.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":369143,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015182,"text":"70015182 - 1987 - ESTIMATION OF NAVIGATION - DAM DISCHARGE IN ILLINOIS.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:00","indexId":"70015182","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"ESTIMATION OF NAVIGATION - DAM DISCHARGE IN ILLINOIS.","docAbstract":"Techniques were used to estimate discharge for the Brandon Road Dam on the Des Plaines River and the Dresden Island, Marseilles, and Starved Rock Dams on the Illinois River in northern Illinois. Tainter gates are operated to regulate streamflow at all dams. Additionally, headgates are used for regulation of the Brandon Road Dam. Stage-discharge, gate-opening relations were developed from a total of 91 discharge measurements that range from 198 to 86,400 cubic feet per second (5. 6 to 2,450 cubic meters per second). Values for discharge coefficients, in equations that express discharge as a function of tailwater depth, headwater depth, and vertical height of gate opening, were determined for conditions of free-orifice, submerged-orifice, free-weir, and submerged-weir flow past a tainter gate.","conferenceTitle":"Hydraulic Engineering, Proceedings of the 1987 National Conference.","conferenceLocation":"Williamsburg, VA, USA","language":"English","publisher":"ASCE","publisherLocation":"New York, NY, USA","isbn":"0872626105","usgsCitation":"Weiss, L.S., 1987, ESTIMATION OF NAVIGATION - DAM DISCHARGE IN ILLINOIS., Hydraulic Engineering, Proceedings of the 1987 National Conference., Williamsburg, VA, USA, p. 641-647.","startPage":"641","endPage":"647","numberOfPages":"7","costCenters":[],"links":[{"id":224241,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0468e4b0c8380cd50977","contributors":{"authors":[{"text":"Weiss, Linda S. lsweiss@usgs.gov","contributorId":2955,"corporation":false,"usgs":true,"family":"Weiss","given":"Linda","email":"lsweiss@usgs.gov","middleInitial":"S.","affiliations":[],"preferred":true,"id":370268,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015265,"text":"70015265 - 1987 - Near-bottom suspended matter concentration on the Continental Shelf during storms: estimates based on in situ observations of light transmission and a particle size dependent transmissometer calibration","interactions":[],"lastModifiedDate":"2017-11-05T09:57:35","indexId":"70015265","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1333,"text":"Continental Shelf Research","active":true,"publicationSubtype":{"id":10}},"title":"Near-bottom suspended matter concentration on the Continental Shelf during storms: estimates based on in situ observations of light transmission and a particle size dependent transmissometer calibration","docAbstract":"<p>A laboratory calibration of Sea Tech and Montedoro-Whitney beam transmissometers shows a linear relation between light attenuation coefficient (<i>c<sub>p</sub></i>) and suspended matter concentration (SMC) for natural sediments and for glass beads. However the proportionality constant between <i>c<sub>p</sub></i> and SMC depends on the particle diameter and particle type. Thus, to measure SMC, observations of light attenuation must be used with a time-variable calibration when suspended particle characteristics change with time. Because of this variable calibration, time series of light attenuation alone may not directly reflect SMC and must be interpreted with care.</p><p>The near-bottom concentration of suspended matter during winter storms on the U.S. East Coast Continental Shelf is estimated from light transmission measurements made 2 m above the bottom and from the size distribution of suspended material collected simultaneously in sediment traps 3 m above the bottom. The average concentrations during six storms between December 1979 and February 1980 in the Middle Atlantic Bight ranged from 2 to 4 mg l<sup>1</sup> (maximum concentration of 7 mg l<sup>1</sup>) and 8 to 12 mg l<sup>1</sup> (maximum concentration of 22 mg l<sup>1</sup>) on the south flank of Georges Bank.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0278-4343(87)90026-4","issn":"02784343","usgsCitation":"Moody, J.A., Butman, B., and Bothner, M., 1987, Near-bottom suspended matter concentration on the Continental Shelf during storms: estimates based on in situ observations of light transmission and a particle size dependent transmissometer calibration: Continental Shelf Research, v. 7, no. 6, p. 609-628, https://doi.org/10.1016/0278-4343(87)90026-4.","productDescription":"20 p.","startPage":"609","endPage":"628","costCenters":[],"links":[{"id":223810,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a63d9e4b0c8380cd7272e","contributors":{"authors":[{"text":"Moody, J. A.","contributorId":32930,"corporation":false,"usgs":true,"family":"Moody","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":370494,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butman, B.","contributorId":85580,"corporation":false,"usgs":true,"family":"Butman","given":"B.","email":"","affiliations":[],"preferred":false,"id":370496,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bothner, Michael H. mbothner@usgs.gov","contributorId":139855,"corporation":false,"usgs":true,"family":"Bothner","given":"Michael H.","email":"mbothner@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":370495,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015171,"text":"70015171 - 1987 - Localized sudden changes in the geomagnetic secular variation.","interactions":[],"lastModifiedDate":"2024-04-25T00:07:25.013254","indexId":"70015171","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2310,"text":"Journal of Geomagnetism & Geoelectricity","active":true,"publicationSubtype":{"id":10}},"title":"Localized sudden changes in the geomagnetic secular variation.","docAbstract":"<p>There is much debate as to whether there was a worldwide geomagnetic jerk in 1969 or 1970. It is agreed that there was an unusual sharp change in the secular variation in the east component, Y, in Europe at that time. This note points out how a localized sudden change in the secular variation pattern of one component in Europe can occur without having any large worldwide effects in any of the components. The accompanying changes in the spherical harmonic coefficients for such a localized change are also discussed.&nbsp;</p>","language":"English","publisher":"J-STAGE","doi":"10.5636/jgg.39.111","usgsCitation":"Alldredge, L., 1987, Localized sudden changes in the geomagnetic secular variation.: Journal of Geomagnetism & Geoelectricity, v. 39, no. 2, p. 111-118, https://doi.org/10.5636/jgg.39.111.","productDescription":"8 p.","startPage":"111","endPage":"118","numberOfPages":"8","costCenters":[],"links":[{"id":487261,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5636/jgg.39.111","text":"Publisher Index Page"},{"id":224077,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"39","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a48f4e4b0c8380cd6826a","contributors":{"authors":[{"text":"Alldredge, L.R.","contributorId":53457,"corporation":false,"usgs":true,"family":"Alldredge","given":"L.R.","email":"","affiliations":[],"preferred":false,"id":370244,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014221,"text":"70014221 - 1987 - A comparison of water solubility enhancements of organic solutes by aquatic humic materials and commercial humic acids","interactions":[],"lastModifiedDate":"2020-01-18T09:40:34","indexId":"70014221","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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 comparison of water solubility enhancements of organic solutes by aquatic humic materials and commercial humic acids","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"ACS","doi":"10.1021/es00165a012","issn":"0013936X","usgsCitation":"Chlou, C., Kile, D.E., Brinton, T., Malcolm, R., Leenheer, J., and MacCarthy, P., 1987, A comparison of water solubility enhancements of organic solutes by aquatic humic materials and commercial humic acids: Environmental Science & Technology, v. 21, no. 12, p. 1231-1234, https://doi.org/10.1021/es00165a012.","productDescription":"4 p.","startPage":"1231","endPage":"1234","numberOfPages":"4","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":226009,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"12","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5059e37ce4b0c8380cd4606f","contributors":{"authors":[{"text":"Chlou, C.T.","contributorId":9008,"corporation":false,"usgs":true,"family":"Chlou","given":"C.T.","email":"","affiliations":[],"preferred":false,"id":367881,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kile, Daniel E. dekile@usgs.gov","contributorId":1286,"corporation":false,"usgs":true,"family":"Kile","given":"Daniel","email":"dekile@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":779732,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brinton, T.I.","contributorId":93922,"corporation":false,"usgs":true,"family":"Brinton","given":"T.I.","affiliations":[],"preferred":false,"id":367886,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Malcolm, Ronald L.","contributorId":46075,"corporation":false,"usgs":true,"family":"Malcolm","given":"Ronald L.","affiliations":[],"preferred":false,"id":367883,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Leenheer, J.A.","contributorId":75123,"corporation":false,"usgs":true,"family":"Leenheer","given":"J.A.","affiliations":[],"preferred":false,"id":367884,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"MacCarthy, P.","contributorId":88081,"corporation":false,"usgs":true,"family":"MacCarthy","given":"P.","email":"","affiliations":[],"preferred":false,"id":367885,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70014097,"text":"70014097 - 1987 - Diffusivity of a glacial-outwash aquifer by the floodwave- response technique","interactions":[],"lastModifiedDate":"2024-03-20T22:50:56.586809","indexId":"70014097","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Diffusivity of a glacial-outwash aquifer by the floodwave- response technique","docAbstract":"<p>Aquifer diffusivity (transmissivity divided by storage coefficient) was calculated for three sites in a glacial-autwash valley aquifer near Cortland, New York from water-level fluctuations induced by rises in stream stage. The observed response data were analyzed through use of a one-dimensional floodwave-response model to calculate the theoretical head response in the aquifer generated by a floodwave in the stream, and then matched to the observed head response. Diffusivity values computed from sharply peaked flood rises ranged from 6.08 to 8.68 ft<sup>2</sup>. The closest match between observed and calculated heads was obtained from a site where the aquifer is confined and the saturated thickness (and thus the diffusivity) remains constant with the passage of a floodwave. Arrival time of the observed flood-peak seems to be the most useful criterion for curve matching, especially under unconfined conditions, where a match to the rising limb and floodpeak is difficult because of changes in the saturated thickness.</p>","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1987.tb02133.x","issn":"0017467X","usgsCitation":"Reynolds, R., 1987, Diffusivity of a glacial-outwash aquifer by the floodwave- response technique: Groundwater, v. 25, no. 3, p. 290-299, https://doi.org/10.1111/j.1745-6584.1987.tb02133.x.","productDescription":"10 p.","startPage":"290","endPage":"299","numberOfPages":"10","costCenters":[],"links":[{"id":226001,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"3","noUsgsAuthors":false,"publicationDate":"2006-03-21","publicationStatus":"PW","scienceBaseUri":"505a0113e4b0c8380cd4fab1","contributors":{"authors":[{"text":"Reynolds, R.J.","contributorId":102921,"corporation":false,"usgs":true,"family":"Reynolds","given":"R.J.","email":"","affiliations":[],"preferred":false,"id":367564,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014737,"text":"70014737 - 1987 - Influence of ore type and milling process on 222Rn emanation coefficients of U mill tailings","interactions":[],"lastModifiedDate":"2012-03-12T17:19:32","indexId":"70014737","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1884,"text":"Health Physics","active":true,"publicationSubtype":{"id":10}},"title":"Influence of ore type and milling process on 222Rn emanation coefficients of U mill tailings","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Health Physics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00179078","usgsCitation":"Landa, E.R., 1987, Influence of ore type and milling process on 222Rn emanation coefficients of U mill tailings: Health Physics, v. 53, no. 6, p. 679-683.","startPage":"679","endPage":"683","numberOfPages":"5","costCenters":[],"links":[{"id":226108,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3b61e4b0c8380cd62498","contributors":{"authors":[{"text":"Landa, E. R.","contributorId":100002,"corporation":false,"usgs":true,"family":"Landa","given":"E.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":369163,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014172,"text":"70014172 - 1987 - Plate-tectonic evolution of the western U.S.A.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:31","indexId":"70014172","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1582,"text":"Episodes","active":true,"publicationSubtype":{"id":10}},"title":"Plate-tectonic evolution of the western U.S.A.","docAbstract":"Changing interactions of lithospheric plates provide the framework for this review of the 3100 m.y. geological history of some 3 million km2 of mountains, deserts, plateaux and plains. The Precambrian to Neogene development of the western U.S.A. is outlined in terms of plate collisions, subduction events and deformation of lithospheric slabs, with some interpretations based on SE Asia and other regions of complex tectonics.-R.A.H.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Episodes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"07053797","usgsCitation":"Hamilton, W., 1987, Plate-tectonic evolution of the western U.S.A.: Episodes, v. 10, no. 4, p. 271-276.","startPage":"271","endPage":"276","numberOfPages":"6","costCenters":[],"links":[{"id":225301,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7c22e4b0c8380cd797f7","contributors":{"authors":[{"text":"Hamilton, W.","contributorId":46683,"corporation":false,"usgs":true,"family":"Hamilton","given":"W.","email":"","affiliations":[],"preferred":false,"id":367772,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70015308,"text":"70015308 - 1987 - A study of metal ion adsorption at low suspended-solid concentrations","interactions":[],"lastModifiedDate":"2020-01-17T17:30:52","indexId":"70015308","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1587,"text":"Estuarine, Coastal and Shelf Science","active":true,"publicationSubtype":{"id":10}},"title":"A study of metal ion adsorption at low suspended-solid concentrations","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-serif\"><div id=\"aep-abstract-id5\" class=\"abstract author\"><div id=\"aep-abstract-sec-id6\"><p>A procedure for conducting adsorption studies at low suspended solid concentrations in natural waters (&lt;50 mg l<sup>−1</sup>) is described. Methodological complications previously associated with such experiments have been overcome. Adsorption of zinc ion onto synthetic colloidal titania (TiO<sub>2</sub>) was studied as a function of pH, supporting electrolyte (NaCl) concentration (0·1-0·002<span>&nbsp;</span><span class=\"small-caps\">m</span>) and particle concentration (2–50 mg l<sup>−1</sup>). The lack of success of the Davis Leckie site bonding model in describing Zn(II) adsorption emphasizes the need for further studies of adsorption at low suspended-solid concentrations.</p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0272-7714(87)90060-6","issn":"02727714","usgsCitation":"Chang, C.C., Davis, J., and Kuwabara, J.S., 1987, A study of metal ion adsorption at low suspended-solid concentrations: Estuarine, Coastal and Shelf Science, v. 24, no. 3, p. 419-424, https://doi.org/10.1016/0272-7714(87)90060-6.","productDescription":"6 p.","startPage":"419","endPage":"424","numberOfPages":"6","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224414,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e5bfe4b0c8380cd46f54","contributors":{"authors":[{"text":"Chang, Cecily C.Y.","contributorId":68032,"corporation":false,"usgs":true,"family":"Chang","given":"Cecily","email":"","middleInitial":"C.Y.","affiliations":[],"preferred":false,"id":370598,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, J.A.","contributorId":71694,"corporation":false,"usgs":true,"family":"Davis","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":370599,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kuwabara, James S. 0000-0003-2502-1601 kuwabara@usgs.gov","orcid":"https://orcid.org/0000-0003-2502-1601","contributorId":3374,"corporation":false,"usgs":true,"family":"Kuwabara","given":"James","email":"kuwabara@usgs.gov","middleInitial":"S.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":779730,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014241,"text":"70014241 - 1987 - A model for tides and currents in the English Channel and southern North Sea","interactions":[],"lastModifiedDate":"2012-03-12T17:19:31","indexId":"70014241","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"A model for tides and currents in the English Channel and southern North Sea","docAbstract":"The amplitude and phase of 11 tidal constituents for the English Channel and southern North Sea are calculated using a frequency domain, finite element model. The governing equations - the shallow water equations - are modifed such that sea level is calculated using an elliptic equation of the Helmholz type followed by a back-calculation of velocity using the primitive momentum equations. Triangular elements with linear basis functions are used. The modified form of the governing equations provides stable solutions with little numerical noise. In this field-scale test problem, the model was able to produce the details of the structure of 11 tidal constituents including O1, K1, M2, S2, N2, K2, M4, MS4, MN4, M6, and 2MS6.","largerWorkTitle":"Advances in Water Resources","language":"English","issn":"03091708","usgsCitation":"Walters, R.A., 1987, A model for tides and currents in the English Channel and southern North Sea, <i>in</i> Advances in Water Resources, v. 10, no. 3, p. 138-148.","startPage":"138","endPage":"148","numberOfPages":"11","costCenters":[],"links":[{"id":225304,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e47de4b0c8380cd4666e","contributors":{"authors":[{"text":"Walters, Roy A.","contributorId":74877,"corporation":false,"usgs":true,"family":"Walters","given":"Roy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":367923,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014259,"text":"70014259 - 1987 - Convergent tectonics and coastal upwelling: a history of the Peru continental margin ( Pacific).","interactions":[],"lastModifiedDate":"2018-01-08T12:47:04","indexId":"70014259","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1582,"text":"Episodes","active":true,"publicationSubtype":{"id":10}},"title":"Convergent tectonics and coastal upwelling: a history of the Peru continental margin ( Pacific).","docAbstract":"Late in 1986, scientists on the ODP drillship JOIDES Resolution confirmed that the upper slope of the Peruvian margin consists of continental crust whereas the lower slope comprises an accretionary complex. An intricate history of horizontal and vertical movements can be detected, and the locations of ancient centers of upwelling appear to have varied, partly due to tectonic movements of the margin. In this review of Leg 112, the 3 scientific leaders on this cruise discuss their results. -from Journal Editor","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Episodes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"07053797","usgsCitation":"von Huene, R.E., Suess, E., and Emeis, K., 1987, Convergent tectonics and coastal upwelling: a history of the Peru continental margin ( Pacific).: Episodes, v. 10, no. 2, p. 87-93.","startPage":"87","endPage":"93","numberOfPages":"7","costCenters":[],"links":[{"id":225564,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fbd8e4b0c8380cd4dfda","contributors":{"authors":[{"text":"von Huene, Roland E. 0000-0003-1301-3866 rvonhuene@usgs.gov","orcid":"https://orcid.org/0000-0003-1301-3866","contributorId":191070,"corporation":false,"usgs":true,"family":"von Huene","given":"Roland","email":"rvonhuene@usgs.gov","middleInitial":"E.","affiliations":[{"id":7065,"text":"USGS emeritus","active":true,"usgs":false},{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":367967,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Suess, E.","contributorId":77667,"corporation":false,"usgs":true,"family":"Suess","given":"E.","email":"","affiliations":[],"preferred":false,"id":367968,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Emeis, K.C.","contributorId":47920,"corporation":false,"usgs":true,"family":"Emeis","given":"K.C.","affiliations":[],"preferred":false,"id":367966,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015719,"text":"70015719 - 1987 - Cadmium, copper, lead, and zinc determination in precipitation: A comparison of inductively coupled plasma atomic emission spectrometry and graphite furnace atomization atomic absorption spectrometry","interactions":[],"lastModifiedDate":"2012-03-12T17:18:54","indexId":"70015719","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2742,"text":"Mikrochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Cadmium, copper, lead, and zinc determination in precipitation: A comparison of inductively coupled plasma atomic emission spectrometry and graphite furnace atomization atomic absorption spectrometry","docAbstract":"Selected trace element analysis for cadmium, copper, lead, and zinc in precipitation samples by inductively coupled plasma atomic emission Spectrometry (ICP) and by atomic absorption spectrometry with graphite furnace atomization (AAGF) have been evaluated. This task was conducted in conjunction with a longterm study of precipitation chemistry at high altitude sites located in remote areas of the southwestern United States. Coefficients of variation and recovery values were determined for a standard reference water sample for all metals examined for both techniques. At concentration levels less than 10 micrograms per liter AAGF analyses exhibited better precision and accuracy than ICP. Both methods appear to offer the potential for cost-effective analysis of trace metal ions in precipitation. ?? 1987 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mikrochimica Acta","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF01196608","issn":"00263672","usgsCitation":"Reddy, M., Benefiel, M., and Claassen, H., 1987, Cadmium, copper, lead, and zinc determination in precipitation: A comparison of inductively coupled plasma atomic emission spectrometry and graphite furnace atomization atomic absorption spectrometry: Mikrochimica Acta, v. 88, no. 3-4, p. 159-170, https://doi.org/10.1007/BF01196608.","startPage":"159","endPage":"170","numberOfPages":"12","costCenters":[],"links":[{"id":205402,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01196608"},{"id":223679,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f2efe4b0c8380cd4b4bd","contributors":{"authors":[{"text":"Reddy, M.M.","contributorId":24363,"corporation":false,"usgs":true,"family":"Reddy","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":371612,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Benefiel, M.A.","contributorId":56382,"corporation":false,"usgs":true,"family":"Benefiel","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":371613,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Claassen, H.C.","contributorId":74028,"corporation":false,"usgs":true,"family":"Claassen","given":"H.C.","affiliations":[],"preferred":false,"id":371614,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014258,"text":"70014258 - 1987 - Geochronology of the Xihuashan composite granitic body and tungsten mineralization, Jiangxi province, south China","interactions":[],"lastModifiedDate":"2024-01-05T17:56:58.64532","indexId":"70014258","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"Geochronology of the Xihuashan composite granitic body and tungsten mineralization, Jiangxi province, south China","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.82.1.218","issn":"03610128","usgsCitation":"McKee, E., Rytuba, J.J., and Keqin, X., 1987, Geochronology of the Xihuashan composite granitic body and tungsten mineralization, Jiangxi province, south China: Economic Geology, v. 82, no. 1, p. 218-223, https://doi.org/10.2113/gsecongeo.82.1.218.","productDescription":"6 p.","startPage":"218","endPage":"223","numberOfPages":"6","costCenters":[],"links":[{"id":225563,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"82","issue":"1","noUsgsAuthors":false,"publicationDate":"1987-02-01","publicationStatus":"PW","scienceBaseUri":"505a1735e4b0c8380cd5541f","contributors":{"authors":[{"text":"McKee, E.H.","contributorId":20736,"corporation":false,"usgs":true,"family":"McKee","given":"E.H.","email":"","affiliations":[],"preferred":false,"id":367963,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rytuba, J. J.","contributorId":83082,"corporation":false,"usgs":true,"family":"Rytuba","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":367965,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keqin, Xu","contributorId":54743,"corporation":false,"usgs":false,"family":"Keqin","given":"Xu","email":"","affiliations":[],"preferred":false,"id":367964,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014225,"text":"70014225 - 1987 - Sedimentary processes on the northwestern Iberian continental margin viewed by long-range side-scan sonar and seismic data","interactions":[],"lastModifiedDate":"2017-03-03T11:40:12","indexId":"70014225","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2450,"text":"Journal of Sedimentary Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Sedimentary processes on the northwestern Iberian continental margin viewed by long-range side-scan sonar and seismic data","docAbstract":"<p><span>The effects of an eastern boundary current in the North Atlantic have been mapped from about 39° north latitude along the Iberian margin to as far north as 43°30</span><img src=\"http://archives.datapages.com/data/sepm/journals/v55-58/misc/other/prime1.JPG\" alt=\"^prime\" data-mce-src=\"http://archives.datapages.com/data/sepm/journals/v55-58/misc/other/prime1.JPG\"><span> north latitude at the western margin of Galicia Bank. The geostrophic current has produced sediment drifts that are covered with bedforms. The sediment drifts are difficult to detect on </span><i>Gloria</i><span> long-range side-scan sonar data but are easily resolved on seismic-reflection records as anomalously thick accumulations of sediment banked against either buried or outcropping basement highs. The bedforms ornamenting the drift surfaces were subdivided into 1,000-m water-depth intervals, and their dimensions were tabulated. There are few bedforms in water depths less han 2,000 m, but from depths between 2,000 and 4,000 m they are numerous and have a mean wavelength of 695 m. Bedforms from depths greater than 4,000 m have a mean wavelength of 999 m. The different wavelengths from different water depths suggest two distinct and separated boundary flows. The wave heights of all bedforms found in water depths greater than 2,000 m are less than 10 m. In order to investigate the continuity of sediment drifting through geological time, the stratigraphic section drilled at DSDP Site 398 was reinterpreted and, using seismic-reflection profiles, was traced throughout the northern Iberian margin. Together, the lithostratigraphic and seismic data indicate that sediment drifting developed along this margin in the Eocene. The lithofacies of the Eocene section is t e oldest to have numerous layers of sand and silt. An unconformity separates the Eocene section from the latest Miocene-Pliocene section. The unconformity is interpreted to be the result of the initial pulses of Mediterranean outflow that followed the Messinian desiccation events. A second period of sediment drifting commenced during the Pliocene once the Mediterranean basin filled and the flow out of the Strait of Gibraltar resumed.</span></p>","language":"English","publisher":"The Society for Sedimentary Geology","doi":"10.1306/212F8B43-2B24-11D7-8648000102C1865D","issn":"00224472","usgsCitation":"Gardner, J., and Kidd, R., 1987, Sedimentary processes on the northwestern Iberian continental margin viewed by long-range side-scan sonar and seismic data: Journal of Sedimentary Petrology, v. 57, no. 3, p. 397-407, https://doi.org/10.1306/212F8B43-2B24-11D7-8648000102C1865D.","productDescription":"11 p.","startPage":"397","endPage":"407","costCenters":[],"links":[{"id":226074,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8a34e4b08c986b3170af","contributors":{"authors":[{"text":"Gardner, James V.","contributorId":61769,"corporation":false,"usgs":true,"family":"Gardner","given":"James V.","affiliations":[],"preferred":false,"id":367895,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kidd, Robert B.","contributorId":63544,"corporation":false,"usgs":false,"family":"Kidd","given":"Robert B.","affiliations":[],"preferred":false,"id":367894,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014805,"text":"70014805 - 1987 - Petrogenesis of gabbronorite at Yakobi and northwest Chichagof Islands, Alaska","interactions":[],"lastModifiedDate":"2023-12-28T01:02:44.900089","indexId":"70014805","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Petrogenesis of gabbronorite at Yakobi and northwest Chichagof Islands, Alaska","docAbstract":"<p><span>On Yakobi Island and at Mirror Harbor on the northwest coast of Chichagof Island, gabbronorite occurs as irregular bodies, as much as 5.5 km in maximum dimension, mostly within a 40 to 43 m.y. composite pluton consisting largely of tonalite. The gab-bronorites are the host rocks for a magmatic nickel-copper sulfide deposit consisting predominantly of pyrrhotite, pentlandite, and chalcopyrite. The gabbronorites characteristically have more orthopyroxene than augite and have a significant amount of hornblende. Rock types mapped as gabbronorite range from hornblende pyroxenite to hornblende-pyroxene gabbronorite to quartz-bearing norite and gabbronorite. The tonalite pluton is composed of hornblende diorite, biotite-hornblende diorite, hornblende quartz diorite, biotite-hornblende tonalite, and biotite granodiorite. Contacts between types of gabbronorite are generally gradational on a scale of centimetres to metres; contacts between gabbronorite and the tonalite pluton are gradational on a scale of metres to tens of metres. Rock textures, pyroxene-hornblende relations, and rock and mineral chemistry of the gabbronorites show systematic changes as the gabbronorites grade into the tonalites. The field, petrographic, and chemical data, including trace-element abundances, of the gabbronorites and tonalite pluton rocks can best be explained by either (1) crystallization of gabbronorite from a tholeiitic magma with subsequent assimilation by tonalite that was simultaneously undergoing fractional crystallization or (2) fractional crystallization of a quartz diorite parent magma yielding the range of gabbronorites and tonalite pluton rocks.</span></p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1987)98<265:POGAYA>2.0.CO;2","usgsCitation":"Himmelberg, G.R., Loney, R.A., and Nabelek, P., 1987, Petrogenesis of gabbronorite at Yakobi and northwest Chichagof Islands, Alaska: Geological Society of America Bulletin, v. 98, no. 3, p. 265-279, https://doi.org/10.1130/0016-7606(1987)98<265:POGAYA>2.0.CO;2.","productDescription":"15 p.","startPage":"265","endPage":"279","numberOfPages":"15","costCenters":[],"links":[{"id":226042,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"98","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a777fe4b0c8380cd784ee","contributors":{"authors":[{"text":"Himmelberg, G. R.","contributorId":27106,"corporation":false,"usgs":true,"family":"Himmelberg","given":"G.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":369338,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Loney, R. A.","contributorId":90757,"corporation":false,"usgs":true,"family":"Loney","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":369340,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nabelek, P.I.","contributorId":71315,"corporation":false,"usgs":true,"family":"Nabelek","given":"P.I.","email":"","affiliations":[],"preferred":false,"id":369339,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70015271,"text":"70015271 - 1987 - Cretaceous age of the upper part of the McCoy Mountains Formation, southeastern California and southwestern Arizona, and its tectonic significance: reconciliation of paleobotanical and paleomagnetic evidence.","interactions":[],"lastModifiedDate":"2024-01-26T01:25:53.348916","indexId":"70015271","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Cretaceous age of the upper part of the McCoy Mountains Formation, southeastern California and southwestern Arizona, and its tectonic significance: reconciliation of paleobotanical and paleomagnetic evidence.","docAbstract":"<div id=\"15571416\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>The upper part of the 7-km-thick McCoy Mountains Formation in southeastern California contains fossil angiosperm wood that closely resembles the genus<span>&nbsp;</span><i>Paraphyllanthoxylon</i>, which is known only from strata of late Early Cretaceous and younger age. This wood, in conjunction with geologic field relations, supports previous interpretations that the upper part of the McCoy Mountains Formation is of late Early Cretaceous and/or Late Cretaceous age, in contrast to a more recent interpretation that the entire formation is of Jurassic age. Alternatives are therefore needed to the recent hypothesis that deposition, deformation, and metamorphism of the McCoy Mountains Formation were related to movement on the Jurassic Mojave-Sonora megashear.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1987)15<561:CAOTUP>2.0.CO;2","issn":"00917613","usgsCitation":"Stone, P., Page, V., Hamilton, W., and Howard, K.A., 1987, Cretaceous age of the upper part of the McCoy Mountains Formation, southeastern California and southwestern Arizona, and its tectonic significance: reconciliation of paleobotanical and paleomagnetic evidence.: Geology, v. 15, no. 6, p. 561-564, https://doi.org/10.1130/0091-7613(1987)15<561:CAOTUP>2.0.CO;2.","productDescription":"4 p.","startPage":"561","endPage":"564","numberOfPages":"4","costCenters":[],"links":[{"id":223868,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"15","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fca5e4b0c8380cd4e371","contributors":{"authors":[{"text":"Stone, P.","contributorId":93632,"corporation":false,"usgs":true,"family":"Stone","given":"P.","email":"","affiliations":[],"preferred":false,"id":370511,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Page, V.M.","contributorId":53959,"corporation":false,"usgs":true,"family":"Page","given":"V.M.","email":"","affiliations":[],"preferred":false,"id":370510,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hamilton, W.","contributorId":46683,"corporation":false,"usgs":true,"family":"Hamilton","given":"W.","email":"","affiliations":[],"preferred":false,"id":370508,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Howard, K. A.","contributorId":48938,"corporation":false,"usgs":false,"family":"Howard","given":"K.","middleInitial":"A.","affiliations":[],"preferred":false,"id":370509,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70014804,"text":"70014804 - 1987 - Comparison of Methods for Estimating Low Flow Characteristics of Streams","interactions":[],"lastModifiedDate":"2013-02-19T14:41:50","indexId":"70014804","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3718,"text":"Water Resources Bulletin","printIssn":"0043-1370","active":true,"publicationSubtype":{"id":10}},"title":"Comparison of Methods for Estimating Low Flow Characteristics of Streams","docAbstract":"Four methods for estimating the 7-day, 10-year and 7-day, 20-year low flows for streams are compared by the bootstrap method. The bootstrap method is a Monte Carlo technique in which random samples are drawn from an unspecified sampling distribution defined from observed data. The nonparametric nature of the bootstrap makes it suitable for comparing methods based on a flow series for which the true distribution is unknown. Results show that the two methods based on hypothetical distribution (Log-Pearson III and Weibull) had lower mean square errors than did the G. E. P. Box-D. R. Cox transformation method or the Log-W. C. Boughton method which is based on a fit of plotting positions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water Resources Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Water Resources Association","doi":"10.1111/j.1752-1688.1987.tb00858.x","issn":"00431370","usgsCitation":"Tasker, G.D., 1987, Comparison of Methods for Estimating Low Flow Characteristics of Streams: Water Resources Bulletin, v. 23, no. 6, p. 1077-1083, https://doi.org/10.1111/j.1752-1688.1987.tb00858.x.","startPage":"1077","endPage":"1083","numberOfPages":"7","costCenters":[],"links":[{"id":267763,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.1987.tb00858.x"},{"id":225980,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-06-08","publicationStatus":"PW","scienceBaseUri":"5059f2dae4b0c8380cd4b426","contributors":{"authors":[{"text":"Tasker, Gary D.","contributorId":95035,"corporation":false,"usgs":true,"family":"Tasker","given":"Gary","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":369337,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014103,"text":"70014103 - 1987 - Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.","interactions":[],"lastModifiedDate":"2024-03-14T11:24:41.160582","indexId":"70014103","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.","docAbstract":"<p>Three new fission-track (zircon) and four new K-Ar (biotite) dates corroborate a late Oligocene-early Miocene age (22-28 Ma) for the Salla Beds of Bolivia. These ages contrast markedly with the previously accepted age of about 35 Ma for these strata and their contained faunas, and recasts of order and chronology of interchange between New World and Old World mammals.&nbsp;</p>","language":"English","publisher":"University of Chicago Press","issn":"00221376","usgsCitation":"Naeser, C.W., McKee, E., Johnson, N., and Macfadden, B., 1987, Confirmation of a late Oligocene-early Miocene age of the Deseadan Salla Beds of Bolivia.: Journal of Geology, v. 95, no. 6, p. 825-828.","productDescription":"4 p.","startPage":"825","endPage":"828","numberOfPages":"4","costCenters":[],"links":[{"id":226067,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":426621,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.jstor.org/stable/30063827"}],"volume":"95","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f9c2e4b0c8380cd4d77b","contributors":{"authors":[{"text":"Naeser, C. W.","contributorId":17582,"corporation":false,"usgs":true,"family":"Naeser","given":"C.","middleInitial":"W.","affiliations":[],"preferred":false,"id":367580,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKee, E.H.","contributorId":20736,"corporation":false,"usgs":true,"family":"McKee","given":"E.H.","email":"","affiliations":[],"preferred":false,"id":367581,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, N.M.","contributorId":105429,"corporation":false,"usgs":true,"family":"Johnson","given":"N.M.","email":"","affiliations":[],"preferred":false,"id":367582,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Macfadden, B.J.","contributorId":13383,"corporation":false,"usgs":true,"family":"Macfadden","given":"B.J.","affiliations":[],"preferred":false,"id":367579,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70014142,"text":"70014142 - 1987 - Hawaiian xenolith populations, magma supply rates, and development of magma chambers","interactions":[],"lastModifiedDate":"2012-03-12T17:19:28","indexId":"70014142","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Hawaiian xenolith populations, magma supply rates, and development of magma chambers","docAbstract":"Hawaiian volcanoes pass through a sequence of four eruptive stages characterized by distinct lava types, magma supply rates, and xenolith populations. Magma supply rates are low in the earliest and two latest alkalic stages and high in the tholeiitic second stage. Magma storage reservoirs develop at shallow and intermediate depths as the magma supply rate increases during the earliest stage; magma in these reservoirs solidifies as the supply rate declines during the alkalic third stage. These magma storage reservoirs function as hydraulic filters and remove dense xenoliths that the ascending magma has entrained. During the earliest and latest stages, no magma storage zone exists, and mantle xenoliths of lherzolite are carried to the surface in primitive alkalic lava. During the tholeiitic second stage, magma storage reservoirs develop and persist both at the base of the ocean crust and 3-7 km below the caldera; only xenoliths of shallow origin are carried to the surface by differentiated lava. During the alkalic third stage, magma in the shallow subcaldera reservoir solidifies, and crustal xenoliths, including oceanic-crustal rocks, are carried to the surface in lava that fractionates in an intermediate-depth reservoir. Worldwide xenolith populations in tholeiitic and alkalic lava may reflect the presence or absence of subvolcanic magma storage reservoirs. ?? 1987 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Volcanology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF01079963","issn":"02588900","usgsCitation":"Clague, D., 1987, Hawaiian xenolith populations, magma supply rates, and development of magma chambers: Bulletin of Volcanology, v. 49, no. 4, p. 577-587, https://doi.org/10.1007/BF01079963.","startPage":"577","endPage":"587","numberOfPages":"11","costCenters":[],"links":[{"id":205659,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01079963"},{"id":225816,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2fbee4b0c8380cd5d03c","contributors":{"authors":[{"text":"Clague, D.A.","contributorId":36129,"corporation":false,"usgs":true,"family":"Clague","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":367701,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1007682,"text":"1007682 - 1987 - Geographic distribution: Cnemidophorus gularis gularis","interactions":[],"lastModifiedDate":"2012-02-02T00:04:16","indexId":"1007682","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1898,"text":"Herpetological Review","active":true,"publicationSubtype":{"id":10}},"title":"Geographic distribution: Cnemidophorus gularis gularis","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Herpetological Review","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"McAllister, C., Scott, N., and Smith, B., 1987, Geographic distribution: Cnemidophorus gularis gularis: Herpetological Review, v. 18.","productDescription":"p. 20","startPage":"20","numberOfPages":"20","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130408,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae5e4b07f02db68a523","contributors":{"authors":[{"text":"McAllister, C.T.","contributorId":97853,"corporation":false,"usgs":true,"family":"McAllister","given":"C.T.","email":"","affiliations":[],"preferred":false,"id":315846,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, N.J. Jr.","contributorId":8407,"corporation":false,"usgs":true,"family":"Scott","given":"N.J.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":315844,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, B.E.","contributorId":36495,"corporation":false,"usgs":true,"family":"Smith","given":"B.E.","email":"","affiliations":[],"preferred":false,"id":315845,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014762,"text":"70014762 - 1987 - Heat transport by fluids during late Cretaceous regional metamorphism in the Big Maria Mountains, southeastern California","interactions":[],"lastModifiedDate":"2023-12-28T01:05:43.151862","indexId":"70014762","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Heat transport by fluids during late Cretaceous regional metamorphism in the Big Maria Mountains, southeastern California","docAbstract":"<p>The Big Maria Mountains of southeastern California comprise a Late Cretaceous regional metamorphic terrain involving Paleozoic cratonal sediments. Siliceous limestone of the upper Paleozoic Supai Formation has reacted to form massive wollastonite, requiring an enormous fluid flux. The minimum volume ratio of fluid:rock that is necessary to explain the formation of wollastonite may be calculated from the reaction quartz + calcite = wollastonite + CO<sub>2</sub>, using the method of Rice and Ferry. Given average conditions of 3 kbar, 500 °C, an infiltrating fluid of composition X<sub>H2O</sub><span>&nbsp;</span>= 1.00, an equilibrium fluid composition of X<sub>H2O</sub><span>&nbsp;</span>= 0.97, and 90% wollastonite in the final rock, a fluid:rock ratio of 17:1 may be calculated. Infiltrating fluids of composition 1.00 &gt; X<sub>H2O</sub><span>&nbsp;</span>&gt; 0.97 require still higher ratios. Metamorphic reactions which took place in other units of the sequence (metapelites, massive carbonates, metavolcaniclastics) did not record the massive fluid flux, but fluids must have passed through them to have affected structurally isolated masses of Supai Formation. Passage of fluids must have occurred along fractures.</p><p>Neither magmatism nor radioactive heat sources are adequate to explain the temperatures of metamorphism. If the minimum quantity of fluid that is estimated to have passed through the area was initially at 680 °C, it would result in a 300-degree rise in temperature over that of the stable-craton geotherm. Late metamorphic pegmatite dikes which are most abundant in areas of high metamorphic grade may stem from melts anatectically derived at deeper levels, perhaps as a result of the same fluid flux. Heat that is introduced by large fluid fluxes may be an important cause of anomalously high temperatures which are observed in many cases in regional metamorphic terrains.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1987)98<549:HTBFDL>2.0.CO;2","usgsCitation":"Hoisch, T., 1987, Heat transport by fluids during late Cretaceous regional metamorphism in the Big Maria Mountains, southeastern California: Geological Society of America Bulletin, v. 98, no. 5, p. 549-553, https://doi.org/10.1130/0016-7606(1987)98<549:HTBFDL>2.0.CO;2.","productDescription":"5 p.","startPage":"549","endPage":"553","numberOfPages":"5","costCenters":[],"links":[{"id":225400,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -114.94804091033109,\n              33.43077347463439\n            ],\n            [\n              -114.11307997283119,\n              33.43077347463439\n            ],\n            [\n              -114.11307997283119,\n              34.34277530971741\n            ],\n            [\n              -114.94804091033109,\n              34.34277530971741\n            ],\n            [\n              -114.94804091033109,\n              33.43077347463439\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"98","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3005e4b0c8380cd5d2de","contributors":{"authors":[{"text":"Hoisch, T.D.","contributorId":105863,"corporation":false,"usgs":true,"family":"Hoisch","given":"T.D.","affiliations":[],"preferred":false,"id":369226,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1007680,"text":"1007680 - 1987 - Flammulated Owls (Otus flammeolus) on Santa Barbara Island: First Records for the California Channel Islands","interactions":[],"lastModifiedDate":"2012-02-02T00:04:19","indexId":"1007680","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3743,"text":"Western Birds","active":true,"publicationSubtype":{"id":10}},"title":"Flammulated Owls (Otus flammeolus) on Santa Barbara Island: First Records for the California Channel Islands","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Western Birds","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Collins, P.W., Drost, C., and Fellers, G.M., 1987, Flammulated Owls (Otus flammeolus) on Santa Barbara Island: First Records for the California Channel Islands: Western Birds, v. 17, no. 1, p. 21-31.","productDescription":"p. 21-31","startPage":"21","endPage":"31","numberOfPages":"11","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":129801,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f3e4b07f02db5ef413","contributors":{"authors":[{"text":"Collins, Paul W.","contributorId":100793,"corporation":false,"usgs":false,"family":"Collins","given":"Paul","email":"","middleInitial":"W.","affiliations":[{"id":7014,"text":"Department of Vertebrate Zoology, Santa Barbara Museum of Natural History","active":true,"usgs":false}],"preferred":false,"id":315842,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Drost, Charles","contributorId":52524,"corporation":false,"usgs":true,"family":"Drost","given":"Charles","affiliations":[],"preferred":false,"id":315841,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fellers, Gary M. 0000-0003-4092-0285 gary_fellers@usgs.gov","orcid":"https://orcid.org/0000-0003-4092-0285","contributorId":3150,"corporation":false,"usgs":true,"family":"Fellers","given":"Gary","email":"gary_fellers@usgs.gov","middleInitial":"M.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":315840,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014777,"text":"70014777 - 1987 - Fitting degradation of shoreline scarps by a nonlinear diffusion model","interactions":[],"lastModifiedDate":"2024-06-24T16:20:45.724118","indexId":"70014777","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","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":"Fitting degradation of shoreline scarps by a nonlinear diffusion model","docAbstract":"<p><span>The diffusion model of degradation of topographic features is a promising means by which vertical offsets on Holocene faults might be dated. In order to calibrate the method, we have examined present-day profiles of wave-cut shoreline scarps of late Pleistocene lakes Bonneville and Lahontan. It may be assumed that these scarps were initially at least as steep as the angle of repose. Offsets range from 1 to 12 m, and present slope angles range from 9° to 29°. A parameter called apparent diffusion age, defined as half the mean square horizontal extent of the slope function of each profile, is plotted as a function of scarp offset. The points show a clear trend of apparent age increasing nearly linearly with offset. If linear diffusion held and scarps were initially vertical, apparent diffusion age would be the same for all the shoreline profiles. The increasing trend can only partly be explained by nonvertical initial scarp slope, and therefore the rate of transport of material downslope must increase significantly faster than a linear law in the range of slopes spanned by the data. The transport law must become linear at small slope to reduce scatter between profiles with varying ambient slopes. The transport law adopted for the purpose of dating is&nbsp;</span><i>k</i><sub>0</sub><span>(1 + 5</span><i>s</i><sup>2</sup><span>), where&nbsp;</span><i>s</i><span>&nbsp;is local slope. The transport coefficient&nbsp;</span><i>k</i><sub>0</sub><span>&nbsp;is correlated inversely with fan slope, suggesting that there is a dependence on the particle size distribution. A table is included that allows easy application of the model to scarps with simple initial shape.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB092iB12p12857","issn":"01480227","usgsCitation":"Andrews, D., and Bucknam, R.C., 1987, Fitting degradation of shoreline scarps by a nonlinear diffusion model: Journal of Geophysical Research Solid Earth, v. 92, no. B12, p. 12857-12867, https://doi.org/10.1029/JB092iB12p12857.","productDescription":"11 p.","startPage":"12857","endPage":"12867","numberOfPages":"11","costCenters":[],"links":[{"id":225596,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"92","issue":"B12","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a10c7e4b0c8380cd53dda","contributors":{"authors":[{"text":"Andrews, D.J.","contributorId":7416,"corporation":false,"usgs":true,"family":"Andrews","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":369270,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bucknam, Robert C.","contributorId":104490,"corporation":false,"usgs":true,"family":"Bucknam","given":"Robert","email":"","middleInitial":"C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":369271,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014250,"text":"70014250 - 1987 - Diagenesis and fluid flow in the San Juan Basin, New Mexico - regional zonation in the mineralogy and stable isotope composition of clay minerals in sandstone.","interactions":[],"lastModifiedDate":"2017-01-11T16:44:37","indexId":"70014250","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":732,"text":"American Journal of Science","active":true,"publicationSubtype":{"id":10}},"title":"Diagenesis and fluid flow in the San Juan Basin, New Mexico - regional zonation in the mineralogy and stable isotope composition of clay minerals in sandstone.","docAbstract":"The Westwater Canyon Member of the Upper Jurassic Morrison Formation is a relatively homogeneous, hydrologically continuous 100-m-thick sequence of massive fluvial sandstone, bounded above and below by relatively heterogeneous, hydrologically discontinuous units and has served as a primary conduit for fluids within this stratigraphic interval. Patterns of mineral-fluid reactions suggest a basinwide hydrologic regime in which warm, evolved fluids migrated up-dip from the center of the basin under the influence of a regional hydraulic head. -from Authors","language":"English","publisher":"American Journal of Science","doi":"10.2475/ajs.287.4.353","usgsCitation":"Whitney, C.G., and Northrop, H.R., 1987, Diagenesis and fluid flow in the San Juan Basin, New Mexico - regional zonation in the mineralogy and stable isotope composition of clay minerals in sandstone.: American Journal of Science, v. 287, no. 4, p. 353-382, https://doi.org/10.2475/ajs.287.4.353.","productDescription":"30 p.","startPage":"353","endPage":"382","numberOfPages":"30","costCenters":[],"links":[{"id":225433,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"287","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0093e4b0c8380cd4f7d0","contributors":{"authors":[{"text":"Whitney, C. Gene","contributorId":100350,"corporation":false,"usgs":true,"family":"Whitney","given":"C.","email":"","middleInitial":"Gene","affiliations":[],"preferred":false,"id":367939,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Northrop, H. R.","contributorId":40735,"corporation":false,"usgs":true,"family":"Northrop","given":"H.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":367940,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1007659,"text":"1007659 - 1987 - Rare Plants at Point Reyes National Seashore","interactions":[],"lastModifiedDate":"2012-02-02T00:04:18","indexId":"1007659","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1987","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1693,"text":"Fremontia","active":true,"publicationSubtype":{"id":10}},"title":"Rare Plants at Point Reyes National Seashore","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Fremontia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Clark, R.A., and Fellers, G.M., 1987, Rare Plants at Point Reyes National Seashore: Fremontia, v. 15, no. 1, p. 13-16.","productDescription":"p. 13-16","startPage":"13","endPage":"16","numberOfPages":"4","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130058,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"15","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a7fe4b07f02db649210","contributors":{"authors":[{"text":"Clark, Ronilee A.","contributorId":54931,"corporation":false,"usgs":true,"family":"Clark","given":"Ronilee","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":315809,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fellers, Gary M. 0000-0003-4092-0285 gary_fellers@usgs.gov","orcid":"https://orcid.org/0000-0003-4092-0285","contributorId":3150,"corporation":false,"usgs":true,"family":"Fellers","given":"Gary","email":"gary_fellers@usgs.gov","middleInitial":"M.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":315808,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}