{"pageNumber":"4910","pageRowStart":"122725","pageSize":"25","recordCount":184617,"records":[{"id":70014565,"text":"70014565 - 1986 - Deglaciation of the mountainous region of northwestern Montana, U.S.A., as indicated by late Pleistocene ashes","interactions":[],"lastModifiedDate":"2017-05-04T16:52:44","indexId":"70014565","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":898,"text":"Arctic and Alpine Research","active":true,"publicationSubtype":{"id":10}},"title":"Deglaciation of the mountainous region of northwestern Montana, U.S.A., as indicated by late Pleistocene ashes","docAbstract":"

During the late Wisconsin glaciation, the mountainous regions of northwestern Montana were covered by glacial ice. Marias Pass, on the Continental Divide immediately south of Glacier National Park, was covered by a local ice field. This ice and that from other glaciers to the north and south flowed eastward onto the plains of Montana to form the Two Medicine Glacier, a large piedmont glacier that extended 55 km beyond the mountain front. The presence of the Glacier Peak G ash and the underlying St. Helens Jy ash in laminated lake sediments near Marias Pass indicates that in this region the Continental Divide was ice free before about 11,400 BP. Macrofossils, pollen, and spores in these same sediments indicate establishment of shrubs, herbs, and scattered conifers by that time. At Sun River Canyon, about 90 km south of Marias Pass, glaciers also flowed beyond the mountain front onto the plains to form the Sun River Glacier, another large piedmont glacier that extended beyond the mountain front for 25 km. The presence of the Glacier Peak G ash in a postglacial alluvial fan indicates that glacial ice had receded upvalley from the canyon mouth and that the Sun River Glacier no longer existed by 11,200 BP.

","language":"English","publisher":"INSTAAR, University of Colorado","doi":"10.2307/1550889","usgsCitation":"Carrara, P., Short, S.K., and Wilcox, R., 1986, Deglaciation of the mountainous region of northwestern Montana, U.S.A., as indicated by late Pleistocene ashes: Arctic and Alpine Research, v. 18, no. 3, p. 317-325, https://doi.org/10.2307/1550889.","productDescription":"9 p.","startPage":"317","endPage":"325","costCenters":[],"links":[{"id":225320,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Montana","volume":"18","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe53e4b0c8380cd4ec88","contributors":{"authors":[{"text":"Carrara, P. E.","contributorId":33727,"corporation":false,"usgs":true,"family":"Carrara","given":"P. E.","affiliations":[],"preferred":false,"id":368684,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Short, S. K.","contributorId":6596,"corporation":false,"usgs":true,"family":"Short","given":"S.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":368683,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wilcox, R.E.","contributorId":107348,"corporation":false,"usgs":true,"family":"Wilcox","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":368685,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015531,"text":"70015531 - 1986 - Pb, Sr, Nd, and Hf isotopic constraints on the origin of Hawaiian basalts and evidence for a unique mantle source","interactions":[],"lastModifiedDate":"2024-04-03T15:23:30.756072","indexId":"70015531","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Pb, Sr, Nd, and Hf isotopic constraints on the origin of Hawaiian basalts and evidence for a unique mantle source","docAbstract":"

Pb, Sr, Nd, and Hf isotopic relationships among basalts from the Hawaiian Islands suggest that these basalts were derived from three sources; the oceanic lithosphere (Kea end member), the depleted asthenosphere (posterosional end member) and a deep-mantle plume (Koolau end member).

Hawaiian tholeiites are derived within the lithosphere and the isotopic trends collectively defined by the tholeiite data are interpreted as a plume-lithosphere mixing trend. The isotopic characteristics of late-stage basalts are derived from the tholeiite source (lithosphere + plume) with additional input from the lithosphere, asthenosphere, or both. These basalts probably originate from near the asthenosphere-lithosphere boundary. Posterosional basalts are derived from the depleted asthenosphere, but their isotopic characteristics have been slightly modified by either the plume or the source of previously erupted volcanics. The isotopic data require little or no mixing of asthenospheric material into the plume during tholeiite production and thus are consistent with the concept of a rapidly ascending, fluid-rich plume. In addition to providing a source of heat, the plume may supply volatiles to both the sources of tholeiites and posterosional basalts.

The isotopic characteristics of the Koolau (plume) component are unique among OIB sources. If undifferentiated or “primitive” mantle material still exists, then the radiogenic-isotope data for Koolau in combination with rare gas data for Hawaiian basalts in general suggest that the Hawaiian plume may be derived from such material. In any case, the Hawaiian Islands data, when compared to those of other OIB, serve to illustrate the isotopically diverse nature of mantle sources.

","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(86)90084-0","issn":"00167037","usgsCitation":"Stille, P., Unruh, D., and Tatsumoto, M., 1986, Pb, Sr, Nd, and Hf isotopic constraints on the origin of Hawaiian basalts and evidence for a unique mantle source: Geochimica et Cosmochimica Acta, v. 50, no. 10, p. 2303-2319, https://doi.org/10.1016/0016-7037(86)90084-0.","productDescription":"17 p.","startPage":"2303","endPage":"2319","numberOfPages":"17","costCenters":[],"links":[{"id":223826,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a75fbe4b0c8380cd77e62","contributors":{"authors":[{"text":"Stille, P.","contributorId":70113,"corporation":false,"usgs":true,"family":"Stille","given":"P.","email":"","affiliations":[],"preferred":false,"id":371165,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Unruh, D.M.","contributorId":8498,"corporation":false,"usgs":true,"family":"Unruh","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":371164,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tatsumoto, M.","contributorId":76798,"corporation":false,"usgs":true,"family":"Tatsumoto","given":"M.","email":"","affiliations":[],"preferred":false,"id":371166,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014826,"text":"70014826 - 1986 - Summation of Quaternary glaciations in the United States of America","interactions":[],"lastModifiedDate":"2012-03-12T17:19:36","indexId":"70014826","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Summation of Quaternary glaciations in the United States of America","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Science Reviews","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"02773791","usgsCitation":"Richmond, G., and Fullerton, D.S., 1986, Summation of Quaternary glaciations in the United States of America: Quaternary Science Reviews, v. 5, no. C, p. 183-196.","startPage":"183","endPage":"196","numberOfPages":"14","costCenters":[],"links":[{"id":225339,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","issue":"C","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9f32e4b08c986b31e3d3","contributors":{"authors":[{"text":"Richmond, G.M.","contributorId":104066,"corporation":false,"usgs":true,"family":"Richmond","given":"G.M.","email":"","affiliations":[],"preferred":false,"id":369377,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fullerton, D. S.","contributorId":103357,"corporation":false,"usgs":true,"family":"Fullerton","given":"D.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":369376,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":58379,"text":"mf1183B - 1986 - Geochemical maps showing distribution and abundance of copper in two fractions of stream-sediment concentrates, Silver City 1° x 2° quadrangle, New Mexico and Arizona","interactions":[],"lastModifiedDate":"2025-04-17T17:06:10.922988","indexId":"mf1183B","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":325,"text":"Miscellaneous Field Studies Map","code":"MF","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"1183","chapter":"B","title":"Geochemical maps showing distribution and abundance of copper in two fractions of stream-sediment concentrates, Silver City 1° x 2° quadrangle, New Mexico and Arizona","docAbstract":"

No abstract available.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/mf1183B","usgsCitation":"Watts, K.C., Hassemer, J., Forn, C., and Siems, D.F., 1986, Geochemical maps showing distribution and abundance of copper in two fractions of stream-sediment concentrates, Silver City 1° x 2° quadrangle, New Mexico and Arizona: U.S. Geological Survey Miscellaneous Field Studies Map 1183, 1 Plate: 46.51 x 39.76 inches, https://doi.org/10.3133/mf1183B.","productDescription":"1 Plate: 46.51 x 39.76 inches","costCenters":[],"links":[{"id":484686,"rank":3,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/mf/1183-B/plate-1.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":105554,"rank":2,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_6593.htm","linkFileType":{"id":5,"text":"html"},"description":"6593"},{"id":182428,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/mf/1183-B/report-thumb.jpg"}],"scale":"250000","country":"United States","state":"Arizona, New Mexico","otherGeospatial":"Silver City quadrangle","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -110,32 ], [ -110,33 ], [ -108,33 ], [ -108,32 ], [ -110,32 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b23e4b07f02db6ae010","contributors":{"authors":[{"text":"Watts, K. C.","contributorId":49344,"corporation":false,"usgs":true,"family":"Watts","given":"K.","middleInitial":"C.","affiliations":[],"preferred":false,"id":258951,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hassemer, J.R.","contributorId":18761,"corporation":false,"usgs":true,"family":"Hassemer","given":"J.R.","affiliations":[],"preferred":false,"id":258949,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Forn, C.L.","contributorId":46935,"corporation":false,"usgs":true,"family":"Forn","given":"C.L.","affiliations":[],"preferred":false,"id":258950,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Siems, D. F.","contributorId":101239,"corporation":false,"usgs":true,"family":"Siems","given":"D.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":258952,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70014572,"text":"70014572 - 1986 - STRONG-MOTION INSTRUMENTATION OF STRUCTURES IN CHARLESTON, SOUTH CAROLINA AND ELSEWHERE.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:33","indexId":"70014572","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"STRONG-MOTION INSTRUMENTATION OF STRUCTURES IN CHARLESTON, SOUTH CAROLINA AND ELSEWHERE.","docAbstract":"Instrumentation of structures is part of earthquake hazard mitigation program of many institutions, including the United States Geological Survey (USGS). The USGS Strong-Motion Instrumentation of Structures Program is designed to complement other programs and to implement its own, within budget and other constraints. This paper reviews the overall national effort, cites examples of structures implemented and describes progress made to date. A recent example of instrumentation of an eight-story building in Charleston, South Carolina is documented.","conferenceTitle":"Proceedings of the Third U. S. National Conference on Earthquake Engineering.","conferenceLocation":"Charleston, SC, USA","language":"English","publisher":"Earthquake Engineering Research Inst","publisherLocation":"El Cerrito, CA, USA","isbn":"0943198070","usgsCitation":"Çelebi, M., and Maley, R., 1986, STRONG-MOTION INSTRUMENTATION OF STRUCTURES IN CHARLESTON, SOUTH CAROLINA AND ELSEWHERE., Proceedings of the Third U. S. National Conference on Earthquake Engineering., Charleston, SC, USA, p. 1273-1283.","startPage":"1273","endPage":"1283","numberOfPages":"11","costCenters":[],"links":[{"id":225388,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aaf9ae4b0c8380cd876a7","contributors":{"authors":[{"text":"Çelebi, M.","contributorId":36946,"corporation":false,"usgs":true,"family":"Çelebi","given":"M.","affiliations":[],"preferred":false,"id":368703,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Maley, R.","contributorId":87929,"corporation":false,"usgs":true,"family":"Maley","given":"R.","email":"","affiliations":[],"preferred":false,"id":368704,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1004062,"text":"1004062 - 1986 - Inclusion body disease of cranes: Comparison of pathologic findings in cranes with acquired vs. experimentally induced disease","interactions":[],"lastModifiedDate":"2020-05-13T17:39:42.943132","indexId":"1004062","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2528,"text":"Journal of the American Veterinary Medical Association","active":true,"publicationSubtype":{"id":10}},"title":"Inclusion body disease of cranes: Comparison of pathologic findings in cranes with acquired vs. experimentally induced disease","docAbstract":"

Inclusion body disease of cranes was the cause of death in 17 immature and mature cranes of 5 different species in Wisconsin. A herpesvirus of unknown origin was the apparent cause. An isolate of this herpesvirus was used to experimentally infect 3 species of cranes. Macroscopic and microscopic lesions associated with naturally acquired and experimentally induced disease were essentially identical. Multifocal hepatic and splenic necrosis was found in all cranes evaluated. Necrosis of the gastrointestinal tract, thymus, and bursa of Fabricius also was seen in some of the cranes. Eosinophilic intranuclear inclusion bodies often were commonly associated with hepatic lesions, sometimes with the splenic lesions, and rarely with the thymic or gastrointestinal tract lesions. The lesions of this inclusion body disease were similar to those reported for cranes in Austria from which a crane herpesvirus was isolated.

","language":"English","publisher":"American Veterinary Medical Association","usgsCitation":"Schuh, J.C., Sileo, L., Siegfried, L.M., and Yuill, T.M., 1986, Inclusion body disease of cranes: Comparison of pathologic findings in cranes with acquired vs. experimentally induced disease: Journal of the American Veterinary Medical Association, v. 189, no. 9, p. 993-996.","productDescription":"4 p.","startPage":"993","endPage":"996","numberOfPages":"4","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":135929,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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\"}}]}","volume":"189","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fce4b07f02db5f574c","contributors":{"authors":[{"text":"Schuh, J. C.","contributorId":76711,"corporation":false,"usgs":true,"family":"Schuh","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":315077,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sileo, L.","contributorId":46895,"corporation":false,"usgs":true,"family":"Sileo","given":"L.","email":"","affiliations":[],"preferred":false,"id":315074,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Siegfried, Lynne M.","contributorId":53732,"corporation":false,"usgs":true,"family":"Siegfried","given":"Lynne","email":"","middleInitial":"M.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":false,"id":315075,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yuill, Thomas M.","contributorId":60580,"corporation":false,"usgs":true,"family":"Yuill","given":"Thomas","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":315076,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70014574,"text":"70014574 - 1986 - The Valley and Ridge Province of eastern Pennsylvania - Stratigraphic and sedimentologic contributions and problems","interactions":[],"lastModifiedDate":"2023-11-15T18:00:34.57944","indexId":"70014574","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1782,"text":"Geological Journal","active":true,"publicationSubtype":{"id":10}},"title":"The Valley and Ridge Province of eastern Pennsylvania - Stratigraphic and sedimentologic contributions and problems","docAbstract":"

Many contributions that have led to a better understanding of Appalachian geology have resulted directly from work in the folded Appalachian Mountain and Great Valley sections of the Valley and Ridge physiographic province of eastern Pennsylvania. Disagreements have been common since H.D. Rogers first described the geology of the area in 1858. Many differing opinions still exist regarding the stratigraphy, structural geology, geomorphology, and glacial geology.

The rocks in the area, which range from Middle Ordovician to Late Devonian in age, are more than 25000 feet (7620 m) thick. This diversified group of sedimentary rocks was deposited in many different environments, ranging from deep sea, through neritic and tidal, to alluvial. In general, the Middle Ordovician through Lower Devonian strata are a sedimentary cycle related to the waxing and waning of Taconic tectonism. The sequence began with a greywacke-argillite suite (Martinsburg Formation) representing synorogenic basin deepening. This was followed by basin filling and pro-gradation of a sandstone-shale clastic wedge (Shawangunk Formation and Bloomsburg Red Beds) derived from the erosion of the mountains that were uplifted during the Taconic orogeny. The sequence ended with deposition of many thin units of carbonate, sandstone, and shale on a shelf marginal to a land area of low relief. Another tectonic-sedimentary cycle, related to the Acadian orogeny, began with deposition of Middle Devonian rocks. Deep-water shales (Marcellus Shale) preceded shoaling (Mahantango Formation) and turbidite sedimentation (Trimmers Rock Formation) followed by another molasse (Catskill Formation).

","language":"English","publisher":"Wiley","doi":"10.1002/gj.3350210306","usgsCitation":"Epstein, J.B., 1986, The Valley and Ridge Province of eastern Pennsylvania - Stratigraphic and sedimentologic contributions and problems: Geological Journal, v. 21, no. 3, p. 283-306, https://doi.org/10.1002/gj.3350210306.","productDescription":"24 p.","startPage":"283","endPage":"306","numberOfPages":"24","costCenters":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":225453,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Pennsylvania","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -75,\n 40.79088997706049\n ],\n [\n -75,\n 41.15288667538479\n ],\n [\n -75.46708926943194,\n 41.161691042820394\n ],\n [\n -75.46708926943194,\n 40.857257289946034\n ],\n [\n -75.70096629347567,\n 40.852834868710715\n ],\n [\n -75.69511936787424,\n 40.72888724200587\n ],\n [\n -75,\n 40.73331792667565\n ],\n [\n -75,\n 40.79088997706049\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"21","issue":"3","noUsgsAuthors":false,"publicationDate":"2006-12-12","publicationStatus":"PW","scienceBaseUri":"505ba973e4b08c986b322296","contributors":{"authors":[{"text":"Epstein, Jack B. jepstein@usgs.gov","contributorId":1412,"corporation":false,"usgs":true,"family":"Epstein","given":"Jack","email":"jepstein@usgs.gov","middleInitial":"B.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":368708,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014558,"text":"70014558 - 1986 - Depositional environments of the Rock Springs Formation, southwest flank of the Rock Springs Uplift, Wyoming.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:30","indexId":"70014558","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2789,"text":"Mountain Geologist","active":true,"publicationSubtype":{"id":10}},"title":"Depositional environments of the Rock Springs Formation, southwest flank of the Rock Springs Uplift, Wyoming.","docAbstract":"This deltaic Upper Cretaceous Rock Springs Formation of the Mesaverde Group was deposited during early Campanian time near the end of the regressive phase of the Niobrara cyclothem. On the southwest end of the Uplift, part of the delta system is exposed near the seaward edge of a series of transgressive/regressive sequences, which consist of intertonguing prodelta, delta-front, and delta-plain deposits. Eight major delta-front sandstones are vertically stacked and laterally continuous throughout the main study area.-from Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mountain Geologist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0027254X","usgsCitation":"Kirschbaum, M., 1986, Depositional environments of the Rock Springs Formation, southwest flank of the Rock Springs Uplift, Wyoming.: Mountain Geologist, v. 23, no. 2, p. 63-75.","startPage":"63","endPage":"75","numberOfPages":"13","costCenters":[],"links":[{"id":226231,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fec2e4b0c8380cd4eeed","contributors":{"authors":[{"text":"Kirschbaum, M.A.","contributorId":79471,"corporation":false,"usgs":true,"family":"Kirschbaum","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":368669,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014510,"text":"70014510 - 1986 - Comments on 'Remarks on the secular change in the energy density spectrum of the geomagnetic field' by Joachim Meyer.","interactions":[],"lastModifiedDate":"2024-04-25T00:17:00.691689","indexId":"70014510","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","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":"Comments on 'Remarks on the secular change in the energy density spectrum of the geomagnetic field' by Joachim Meyer.","docAbstract":"

Meyer has discussed only the Rn aspect of the Alldredge (1984) paper he is criticising. He has ignored the pictorial demonstration of the need for higher harmonics to properly describe the secular variation field than the main field as demonstrated. This more or less independent demonstration supports the general conclusion of that paper.

","language":"English","publisher":"J-STAGE","doi":"10.5636/jgg.38.171","usgsCitation":"Alldredge, L., 1986, Comments on 'Remarks on the secular change in the energy density spectrum of the geomagnetic field' by Joachim Meyer.: Journal of Geomagnetism & Geoelectricity, v. 38, no. 2, p. 171-172, https://doi.org/10.5636/jgg.38.171.","productDescription":"2 p.","startPage":"171","endPage":"172","numberOfPages":"2","costCenters":[],"links":[{"id":480135,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.5636/jgg.38.171","text":"Publisher Index Page"},{"id":225582,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"38","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f7f1e4b0c8380cd4cdc4","contributors":{"authors":[{"text":"Alldredge, L.R.","contributorId":53457,"corporation":false,"usgs":true,"family":"Alldredge","given":"L.R.","email":"","affiliations":[],"preferred":false,"id":368546,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70015717,"text":"70015717 - 1986 - The heat capacity of a natural monticellite and phase equilibria in the system CaO-MgO-SiO2-CO2","interactions":[],"lastModifiedDate":"2024-04-03T14:55:45.478041","indexId":"70015717","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"displayTitle":"The heat capacity of a natural monticellite and phase equilibria in the system CaO-MgO-SiO2-CO2","title":"The heat capacity of a natural monticellite and phase equilibria in the system CaO-MgO-SiO2-CO2","docAbstract":"

The heat capacity of a natural monticellite (Ca1.00Mg.09Fe.91Mn.01Si0.99O3.99) measured between 9.6 and 343 K using intermittent-heating, adiabatic calorimetry yields Cp0(298) and S2980 of 123.64 ± 0.18 and 109.44 ± 0.16 J · mol−1K−1 respectively. Extrapolation of this entropy value to end-member monticellite results in an S0298 = 108.1 ± 0.2 J · mol−1K−1. High-temperature heat-capacity data were measured between 340–1000 K with a differential scanning calorimeter. The high-temperature data were combined with the 290–350 K adiabatic values, extrapolated to 1700 K, and integrated to yield the following entropy equation for end-member monticellite (298–1700 K): ST0(J · mol−1K−1) = S2980 + 164.79 In T + 15.337 · 10−3T + 22.791 · 105T−2 − 968.94. Phase equilibria in the CaO-MgO-SiO2 system were calculated from 973 to 1673 K and 0 to 12 kbar with these new data combined with existing data for akermanite (Ak), diopside (Di), forsterite (Fo), merwinite (Me) and wollastonite (Wo). The location of the calculated reactions involving the phases Mo and Fo is affected by their mutual solid solution. A best fit of the thermodynamically generated curves to all experiments is made when the S0298 of Me is 250.2 J · mol−1 K−1 less than the measured value of 253.2 J · mol−1 K−1.

A best fit to the reversals for the solid-solid and decarbonation reactions in the CaO-MgO-SiO2-CO2 system was obtained with the ΔG0298 (kJ · mole−1) for the phases Ak(−3667), Di(−3025), Fo(−2051), Me(−4317) and Mo(−2133). The two invariant points − Wo and −Fo for the solid-solid reactions are located at 1008 ± 5 K and 6.3 ± 0.1 kbar, and 1361 ± 10 K and 10.2 ± 0.2 kbar respectively. The location of the thermodynamically generated curves is in excellent agreement with most experimental data on decarbonation equilibria involving these phases.




","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(86)90321-2","issn":"00167037","usgsCitation":"Sharp, Z., Essene, E., Anovitz, L.M., Metz, G., Westrum, E., Hemingway, B.S., and Valley, J., 1986, The heat capacity of a natural monticellite and phase equilibria in the system CaO-MgO-SiO2-CO2: Geochimica et Cosmochimica Acta, v. 50, no. 7, p. 1475-1484, https://doi.org/10.1016/0016-7037(86)90321-2.","productDescription":"10 p.","startPage":"1475","endPage":"1484","numberOfPages":"10","costCenters":[],"links":[{"id":480149,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2027.42/26132>","text":"External Repository"},{"id":223621,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bacb2e4b08c986b323692","contributors":{"authors":[{"text":"Sharp, Z.D.","contributorId":58391,"corporation":false,"usgs":true,"family":"Sharp","given":"Z.D.","email":"","affiliations":[],"preferred":false,"id":371605,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Essene, E.J.","contributorId":91625,"corporation":false,"usgs":true,"family":"Essene","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":371607,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anovitz, Lawrence M.","contributorId":23174,"corporation":false,"usgs":true,"family":"Anovitz","given":"Lawrence","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":371603,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Metz, G.W.","contributorId":62755,"corporation":false,"usgs":true,"family":"Metz","given":"G.W.","email":"","affiliations":[],"preferred":false,"id":371606,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Westrum, E.F. Jr.","contributorId":96416,"corporation":false,"usgs":true,"family":"Westrum","given":"E.F.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":371608,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hemingway, B. S.","contributorId":7268,"corporation":false,"usgs":true,"family":"Hemingway","given":"B.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":371602,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Valley, J.W.","contributorId":28741,"corporation":false,"usgs":true,"family":"Valley","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":371604,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70014564,"text":"70014564 - 1986 - ANALYSIS OF STRONG-MOTION EARTHQUAKE RECORDS FROM A WELL-INSTRUMENTED EARTH DAM.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:34","indexId":"70014564","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"ANALYSIS OF STRONG-MOTION EARTHQUAKE RECORDS FROM A WELL-INSTRUMENTED EARTH DAM.","docAbstract":"Strong-motion records from Long Valley Dam during the Mammoth Lakes earthquake sequence of May 1980 are analyzed to determine the main features of the dam's motions. The dam was instrumented with 22 accelerometers on its embankment and in the immediate vicinity, and more than 60 high-quality, long-duration accelerograms were recorded for the three largest earthquakes of the sequence. Free-field responses are compared with embankment responses to help establish the amplification of the structural motions and to identify modes of vibration of the structure.","conferenceTitle":"Proceedings of the Third U. S. National Conference on Earthquake Engineering.","conferenceLocation":"Charleston, SC, USA","language":"English","publisher":"Earthquake Engineering Research Inst","publisherLocation":"El Cerrito, CA, USA","isbn":"0943198070","usgsCitation":"Fedock, J.J., 1986, ANALYSIS OF STRONG-MOTION EARTHQUAKE RECORDS FROM A WELL-INSTRUMENTED EARTH DAM., Proceedings of the Third U. S. National Conference on Earthquake Engineering., Charleston, SC, USA, p. 729-740.","startPage":"729","endPage":"740","numberOfPages":"12","costCenters":[],"links":[{"id":225263,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e62de4b0c8380cd471fe","contributors":{"authors":[{"text":"Fedock, Joseph J.","contributorId":37082,"corporation":false,"usgs":true,"family":"Fedock","given":"Joseph","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":368682,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70015567,"text":"70015567 - 1986 - Effects of temperature and sliding rate on frictional strength of granite","interactions":[],"lastModifiedDate":"2012-03-12T17:19:00","indexId":"70015567","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3209,"text":"Pure and Applied Geophysics PAGEOPH","active":true,"publicationSubtype":{"id":10}},"title":"Effects of temperature and sliding rate on frictional strength of granite","docAbstract":"Layers of artificial granite gouge have been deformed on saw-cut granite surfaces inclined 30?? to the sample axes. Samples were deformed at a constant confining pressure of 250 MPa and temperatures of 22 to 845??C. The velocity dependence of the steady-state coefficient of friction (??ss) was determined by comparing sliding strengths at different sliding rates. The results of these measurements are consistent with those reported by Solberg and Byerlee (1984) at room temperature and Stesky (1975) between 300 and 400??C. Stesky found that the slip-rate dependence of (??ss) increased above 400??C. In the present study, however, the velocity dependence of (??ss) was nearly independent of temperature. ?? 1986 Birkha??user Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Pure and Applied Geophysics PAGEOPH","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Birkha??user-Verlag","doi":"10.1007/BF00877211","issn":"00334553","usgsCitation":"Lockner, D., Summers, R., and Byerlee, J., 1986, Effects of temperature and sliding rate on frictional strength of granite: Pure and Applied Geophysics PAGEOPH, v. 124, no. 3, p. 445-469, https://doi.org/10.1007/BF00877211.","startPage":"445","endPage":"469","numberOfPages":"25","costCenters":[],"links":[{"id":205391,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00877211"},{"id":223610,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"124","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a07f0e4b0c8380cd518e6","contributors":{"authors":[{"text":"Lockner, D.A. 0000-0001-8630-6833","orcid":"https://orcid.org/0000-0001-8630-6833","contributorId":85603,"corporation":false,"usgs":true,"family":"Lockner","given":"D.A.","affiliations":[],"preferred":false,"id":371246,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Summers, R.","contributorId":65483,"corporation":false,"usgs":true,"family":"Summers","given":"R.","email":"","affiliations":[],"preferred":false,"id":371244,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Byerlee, J.D.","contributorId":69982,"corporation":false,"usgs":true,"family":"Byerlee","given":"J.D.","affiliations":[],"preferred":false,"id":371245,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014573,"text":"70014573 - 1986 - A computerized particle-size analysis system","interactions":[],"lastModifiedDate":"2013-01-21T15:40:31","indexId":"70014573","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1315,"text":"Computers & Geosciences","printIssn":"0098-3004","active":true,"publicationSubtype":{"id":10}},"title":"A computerized particle-size analysis system","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Computers and Geosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/0098-3004(86)90021-X","issn":"00983004","usgsCitation":"Poppe, L., Eliason, A., and Fredericks, J., 1986, A computerized particle-size analysis system: Computers & Geosciences, v. 12, no. 1, p. 93-96, https://doi.org/10.1016/0098-3004(86)90021-X.","startPage":"93","endPage":"96","numberOfPages":"4","costCenters":[],"links":[{"id":266185,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0098-3004(86)90021-X"},{"id":225389,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e391e4b0c8380cd460d6","contributors":{"authors":[{"text":"Poppe, L.J.","contributorId":72782,"corporation":false,"usgs":true,"family":"Poppe","given":"L.J.","affiliations":[],"preferred":false,"id":368706,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eliason, A.H.","contributorId":40972,"corporation":false,"usgs":true,"family":"Eliason","given":"A.H.","email":"","affiliations":[],"preferred":false,"id":368705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fredericks, J.J.","contributorId":77517,"corporation":false,"usgs":true,"family":"Fredericks","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":368707,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014549,"text":"70014549 - 1986 - A numerical investigation of head waves and leaky modes in fluid- filled boreholes","interactions":[],"lastModifiedDate":"2024-04-18T16:05:12.842116","indexId":"70014549","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":"A numerical investigation of head waves and leaky modes in fluid- filled boreholes","docAbstract":"

Although synthetic borehole seismograms can be computed for a wide range of borehole conditions, the physical nature of shear and compressional head waves in fluid-filled boreholes is poorly understood. This paper presents a series of numerical experiments designed to explain the physical mechanisms controlling head-wave propagation in boreholes. These calculations demonstrate the existence of compressional normal modes equivalent to shear normal modes, or pseudo-Rayleigh waves, with sequential cutoff frequencies spaced between the cutoff frequencies for the shear normal modes. Major contributions to head-wave spectra occur in discrete peaks at frequencies just below mode cutoff for both compressional and shear modes. This result is confirmed by calculations with synthetic waveforms at frequencies corresponding to mode cutoff, and by branch-cut integrals designed to yield independent spectra for the compressional mode. For soft formations where shear velocity falls below acoustic velocity in the borehole fluid, leaky compressional normal modes attain properties similar to those of shear normal modes in the case of hard rock. In the limit of vanishing S-wave velocity, this result is formally related to a fluid-fluid waveguide with undamped compressional normal modes. Synthetic waveforms demonstrate that high-amplitude arrivals, traveling at velocities less than the acoustic velocity of the borehole fluid and at frequencies above a few kilohertz, represent the Airy phase of the compressional mode and are not a tube wave. Comparison of synthetic waveforms with waveforms obtained in soft sea sediments indicates that the predicted Airy phase arrivals are present in the experimental data.

","language":"English","publisher":"Society of Exploration Geophysicists","doi":"10.1190/1.1442192","issn":"00168033","usgsCitation":"Paillet, F.L., and Cheng, C., 1986, A numerical investigation of head waves and leaky modes in fluid- filled boreholes: Geophysics, v. 51, no. 7, p. 1438-1449, https://doi.org/10.1190/1.1442192.","productDescription":"12 p.","startPage":"1438","endPage":"1449","numberOfPages":"12","costCenters":[],"links":[{"id":480132,"rank":2,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/1721.1/75062","text":"External Repository"},{"id":226095,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e4c8e4b0c8380cd4691e","contributors":{"authors":[{"text":"Paillet, Frederick L.","contributorId":63820,"corporation":false,"usgs":true,"family":"Paillet","given":"Frederick","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":368651,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cheng, C.H.","contributorId":94443,"corporation":false,"usgs":true,"family":"Cheng","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":368652,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70015718,"text":"70015718 - 1986 - The system NaCl-H2O: relations of vapor-liquid near the critical temperature of water and of vapor-liquid-halite from 300° to 500°C","interactions":[],"lastModifiedDate":"2015-06-03T15:46:28","indexId":"70015718","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"The system NaCl-H2O: relations of vapor-liquid near the critical temperature of water and of vapor-liquid-halite from 300° to 500°C","docAbstract":"

Vapor-liquid relations (P-T-x) for the system NaCl-H2O were determined experimentally at temperatures spanning the critical temperature of water (Tc), the lowest temperature in the system at which critical behavior occurs. In addition, vapor-liquid-halite P-T-x(vapor) relations were determined from 300° to 500°C. Results show that at 373.0°C, immediately below Tc, the vapor side of the isothermal vaporliquid P-x boundary has a shape quite different from that previously conceived. The NaCl content of the vapor increases with pressure in a smooth manner from the pressure of the three-phase assemblage (135 bars, 0.0029% NaCl), to a pressure just below that of the vapor pressure of pure water (0.012% NaCl at 184 bars). Above this pressure the boundary abruptly reverses and projects asymptotically to 0% NaCl in a beak-like shape at 218 bars, the vapor pressure of pure water. At 375.5°, slightly above Tc, the asymptote disappears, and is replaced by a rounded nose. At progressively higher temperatures, the nose disappears and by 380°C the familiar symmetrical bell-shaped curve predominates with the critical point defined by the top of the bell. The P-T curve of the three-phase assemblage determined in the present study is in agreement with previous workers. The NaCl content of the three-phase vapor, however, is much higher than some literature values at temperatures above 410°C.

","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(86)90317-0","issn":"00167037","usgsCitation":"Bischoff, J.L., Rosenbauer, R.J., and Pitzer, K.S., 1986, The system NaCl-H2O: relations of vapor-liquid near the critical temperature of water and of vapor-liquid-halite from 300° to 500°C: Geochimica et Cosmochimica Acta, v. 50, no. 7, p. 1437-1444, https://doi.org/10.1016/0016-7037(86)90317-0.","productDescription":"8 p.","startPage":"1437","endPage":"1444","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":223622,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb0e1e4b08c986b3250df","contributors":{"authors":[{"text":"Bischoff, James L. jbischoff@usgs.gov","contributorId":1389,"corporation":false,"usgs":true,"family":"Bischoff","given":"James","email":"jbischoff@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":371609,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosenbauer, Robert J. brosenbauer@usgs.gov","contributorId":204,"corporation":false,"usgs":true,"family":"Rosenbauer","given":"Robert","email":"brosenbauer@usgs.gov","middleInitial":"J.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":371610,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pitzer, Kenneth S.","contributorId":94435,"corporation":false,"usgs":true,"family":"Pitzer","given":"Kenneth","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":371611,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015329,"text":"70015329 - 1986 - Digital merging of Landsat TM and digitized NHAP data for 1:24 000-scale image mapping.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:57","indexId":"70015329","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3052,"text":"Photogrammetric Engineering and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Digital merging of Landsat TM and digitized NHAP data for 1:24 000-scale image mapping.","docAbstract":"Merging image data collected by different remote sensors is becoming an increasingly important component of digital processing. In this study, two data sets with very different characteristics were digitally merged, and a single data set, which contains information from both sets, was generated. Landsat Thematic Mapper (TM) data were selected for their spectral information, and a digitized panchromatic photograph collected as part of the National High Altitude Program (NHAP), with approximately 4-m resolution after being digitized, was used for the primary spatial information. Five image control points and a second-order polynomial fit were used to combine the information from both data sets.-from Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Photogrammetric Engineering and Remote Sensing","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Chavez, P., 1986, Digital merging of Landsat TM and digitized NHAP data for 1:24 000-scale image mapping.: Photogrammetric Engineering and Remote Sensing, v. 52, no. 10, p. 1637-1646.","startPage":"1637","endPage":"1646","numberOfPages":"10","costCenters":[],"links":[{"id":223874,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"52","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a016fe4b0c8380cd4fbe8","contributors":{"authors":[{"text":"Chavez, P.S. Jr.","contributorId":75147,"corporation":false,"usgs":true,"family":"Chavez","given":"P.S.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":370655,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70015328,"text":"70015328 - 1986 - Rock mechanics: Luminous phenomena and their relationship to rock fracture","interactions":[],"lastModifiedDate":"2012-03-12T17:18:57","indexId":"70015328","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Rock mechanics: Luminous phenomena and their relationship to rock fracture","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/321470a0","issn":"00280836","usgsCitation":"Derr, J., 1986, Rock mechanics: Luminous phenomena and their relationship to rock fracture: Nature, v. 321, no. 6069, p. 470-471, https://doi.org/10.1038/321470a0.","startPage":"470","endPage":"471","numberOfPages":"2","costCenters":[],"links":[{"id":205424,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/321470a0"},{"id":223873,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"321","issue":"6069","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aadf7e4b0c8380cd86fde","contributors":{"authors":[{"text":"Derr, J.S.","contributorId":37477,"corporation":false,"usgs":true,"family":"Derr","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":370654,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70015601,"text":"70015601 - 1986 - An interpretation of induced electric currents in long pipelines caused by natural geomagnetic sources of the upper atmosphere","interactions":[],"lastModifiedDate":"2012-03-12T17:18:56","indexId":"70015601","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3503,"text":"Surveys in Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"An interpretation of induced electric currents in long pipelines caused by natural geomagnetic sources of the upper atmosphere","docAbstract":"Electric currents in long pipelines can contribute to corrosion effects that limit the pipe's lifetime. One cause of such electric currents is the geomagnetic field variations that have sources in the Earth's upper atmosphere. Knowledge of the general behavior of the sources allows a prediction of the occurrence times, favorable locations for the pipeline effects, and long-term projections of corrosion contributions. The source spectral characteristics, the Earth's conductivity profile, and a corrosion-frequency dependence limit the period range of the natural field changes that affect the pipe. The corrosion contribution by induced currents from geomagnetic sources should be evaluated for pipelines that are located at high and at equatorial latitudes. At midlatitude locations, the times of these natural current maxima should be avoided for the necessary accurate monitoring of the pipe-to-soil potential. ?? 1986 D. Reidel Publishing Company.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Surveys in Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF01904061","issn":"01693298","usgsCitation":"Campbell, W., 1986, An interpretation of induced electric currents in long pipelines caused by natural geomagnetic sources of the upper atmosphere: Surveys in Geophysics, v. 8, no. 3, p. 239-259, https://doi.org/10.1007/BF01904061.","startPage":"239","endPage":"259","numberOfPages":"21","costCenters":[],"links":[{"id":205464,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01904061"},{"id":224266,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea87e4b0c8380cd48913","contributors":{"authors":[{"text":"Campbell, W.H.","contributorId":30749,"corporation":false,"usgs":true,"family":"Campbell","given":"W.H.","email":"","affiliations":[],"preferred":false,"id":371339,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70015726,"text":"70015726 - 1986 - Estimating monthly streamflow values by cokriging","interactions":[],"lastModifiedDate":"2012-03-12T17:19:00","indexId":"70015726","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2700,"text":"Mathematical Geology","active":true,"publicationSubtype":{"id":10}},"title":"Estimating monthly streamflow values by cokriging","docAbstract":"Cokriging is applied to estimation of missing monthly streamflow values in three records from gaging stations in west central Virginia. Missing values are estimated from optimal consideration of the pattern of auto- and cross-correlation among standardized residual log-flow records. Investigation of the sensitivity of estimation to data configuration showed that when observations are available within two months of a missing value, estimation is improved by accounting for correlation. Concurrent and lag-one observations tend to screen the influence of other available observations. Three models of covariance structure in residual log-flow records are compared using cross-validation. Models differ in how much monthly variation they allow in covariance. Precision of estimation, reflected in mean squared error (MSE), proved to be insensitive to this choice. Cross-validation is suggested as a tool for choosing an inverse transformation when an initial nonlinear transformation is applied to flow values. ?? 1986 Plenum Publishing Corporation.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mathematical Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers-Plenum Publishers","doi":"10.1007/BF00899744","issn":"08828121","usgsCitation":"Solow, A., and Gorelick, S., 1986, Estimating monthly streamflow values by cokriging: Mathematical Geology, v. 18, no. 8, p. 785-809, https://doi.org/10.1007/BF00899744.","startPage":"785","endPage":"809","numberOfPages":"25","costCenters":[],"links":[{"id":205416,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00899744"},{"id":223785,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0b2ee4b0c8380cd525ed","contributors":{"authors":[{"text":"Solow, A.R.","contributorId":9404,"corporation":false,"usgs":true,"family":"Solow","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":371630,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gorelick, S.M.","contributorId":21589,"corporation":false,"usgs":true,"family":"Gorelick","given":"S.M.","email":"","affiliations":[],"preferred":false,"id":371631,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70015576,"text":"70015576 - 1986 - Low-temperature heat capacity of diopside glass (CaMgSi2O6): A calorimetric test of the configurational-entropy theory applied to the viscosity of liquid silicates","interactions":[],"lastModifiedDate":"2024-04-03T14:58:14.444675","indexId":"70015576","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Low-temperature heat capacity of diopside glass (CaMgSi2O6): A calorimetric test of the configurational-entropy theory applied to the viscosity of liquid silicates","title":"Low-temperature heat capacity of diopside glass (CaMgSi2O6): A calorimetric test of the configurational-entropy theory applied to the viscosity of liquid silicates","docAbstract":"

Heat-capacity measurements have been made between 8 and 370 K on an annealed and a rapidly quenched diopside glass. Between 15 and 200 K, Cp does not depend significantly on the thermal history of the glass. Below 15 K Cp is larger for the quenched than for the annealed specimen. The opposite is true above 200 K as a result of what is interpreted as a secondary relaxation around room temperature. The magnitude of these effects, however, is small enough that the relative entropies S(298)−S(0) of the glasses differ by only 0.5 J/mol K, i.e., a figure within the combined experimental uncertainties. The insensitivity of relative entropies to thermal history supports the assumption that the configurational heat capacity of the liquid may be taken as the heat capacity difference between the liquid and the glass (ΔCp). Furthermore, this insensitivity allows calculation of the residual entropies at 0 K of diopside glasses as a function of the fictive temperature from the entropy of fusion of diopside and the heat capacities of the crystalline, glassy and liquid phases. For a glass with a fictive temperature of 1005 K, for example, this calorimetric residual entropy is 24.3 ± 3 J/mol K, in agreement with the prediction made by RICHET (1984) from an analysis of the viscosity data with the configurational-entropy theory of relaxation processes of Adam and Gibbs (1965). In turn, all the viscosity measurements for liquid diopside, which span the range 0.5-4· 1013 poise, can be quantitatively reproduced through this theory with the calorimetrically determined entropies and ΔCp data. Finally, the unclear significance of “activation energies” for structural interpretations of viscosity data is emphasized, and the importance of ΔCp and glass-transition temperature systematics for determining the composition and temperature dependences of the viscosity is pointed out.

","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(86)90326-1","issn":"00167037","usgsCitation":"Richet, P., Robie, R.A., and Hemingway, B.S., 1986, Low-temperature heat capacity of diopside glass (CaMgSi2O6): A calorimetric test of the configurational-entropy theory applied to the viscosity of liquid silicates: Geochimica et Cosmochimica Acta, v. 50, no. 7, p. 1521-1533, https://doi.org/10.1016/0016-7037(86)90326-1.","productDescription":"13 p.","startPage":"1521","endPage":"1533","numberOfPages":"13","costCenters":[],"links":[{"id":223776,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4a60e4b0c8380cd68d06","contributors":{"authors":[{"text":"Richet, P.","contributorId":42356,"corporation":false,"usgs":true,"family":"Richet","given":"P.","email":"","affiliations":[],"preferred":false,"id":371268,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robie, R. A.","contributorId":71237,"corporation":false,"usgs":true,"family":"Robie","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":371269,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hemingway, B. S.","contributorId":7268,"corporation":false,"usgs":true,"family":"Hemingway","given":"B.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":371267,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015597,"text":"70015597 - 1986 - CLASSIFICATION AND BEHAVIOR OF MEANDER MIGRATION.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:57","indexId":"70015597","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"CLASSIFICATION AND BEHAVIOR OF MEANDER MIGRATION.","docAbstract":"Meander migrations on the Mississippi River between Cairo, Illinois and Baton Rouge, Louisiana for the time period between the years 1765 and 1930 were classified into six categories based on the nature of channel movements. During the time period between 1765 and 1900, man's disturbance on this river reach was relatively minor. This study was mainly based on measurements taken in the years 1765, 1825, 1887 and 1930. The six categories of meander migration were: downstream limb migration, downstream limb rotation, mainly upstream limb migration, upstream limb rotation, pure translation and pure expansion. It was determined that over 60% of future meander migrations could be predicted from the characteristics of each individual initial channel pattern.","conferenceTitle":"Water Forum '86: World Water Issues in Evolution, Proceedings of the Conference.","conferenceLocation":"Long Beach, CA, USA","language":"English","publisher":"ASCE","publisherLocation":"New York, NY, USA","isbn":"0872625451","usgsCitation":"Martin, E.H., Shen, H., and Glover, J., 1986, CLASSIFICATION AND BEHAVIOR OF MEANDER MIGRATION., Water Forum '86: World Water Issues in Evolution, Proceedings of the Conference., Long Beach, CA, USA, p. 1694-1701.","startPage":"1694","endPage":"1701","numberOfPages":"8","costCenters":[],"links":[{"id":224162,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f2d0e4b0c8380cd4b3c2","contributors":{"authors":[{"text":"Martin, Edward H. ehmartin@usgs.gov","contributorId":1906,"corporation":false,"usgs":true,"family":"Martin","given":"Edward","email":"ehmartin@usgs.gov","middleInitial":"H.","affiliations":[],"preferred":true,"id":371327,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shen, Hsieh W.","contributorId":93633,"corporation":false,"usgs":true,"family":"Shen","given":"Hsieh W.","affiliations":[],"preferred":false,"id":371329,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Glover, J.","contributorId":59956,"corporation":false,"usgs":true,"family":"Glover","given":"J.","email":"","affiliations":[],"preferred":false,"id":371328,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70015010,"text":"70015010 - 1986 - Lead-isotopic data from sulfide minerals from the Cascade Range, Oregon and Washington","interactions":[],"lastModifiedDate":"2024-04-03T14:49:48.809317","indexId":"70015010","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Lead-isotopic data from sulfide minerals from the Cascade Range, Oregon and Washington","docAbstract":"

Lead-isotopic studies of mineral deposits associated with Tertiary plutons found in the Cascade Range of Oregon and Washington demonstrate a rather uniform isotopic composition in various sulfide minerals (206Pb204Pb= 18.84 to 19.05\">206Pb204Pb= 18.84 to 19.05; 207Pb204Pb= 15.57 to 15.62\">207Pb204Pb= 15.57 to 15.62; 208Pb204Pb= 38.49 to 38.74\">208Pb204Pb= 38.49 to 38.74), show less variation than data from the volcanic rocks of the Cascade Range and fall within the mixing array defined by the MORB regression line and continental sediments. An evaluation of the role of crustal assimilation by hydrothermal convection during emplacement was made on five sulfide deposits associated with a single composite batholith, the Cloudy Pass pluton. The Pb-isotopic data and mass balance calculations suggest that only minor amounts of the lead were derived from the overlying Precambrian (?) Swakane Biotite Gneiss during emplacement. The bulk of the metal that occurs in sulfide deposits in the Cascade mineral belt appears to have been derived from subducted continental detritus.

The variation of the Pb-isotopic signature of Sulfides from specific districts or deposits suggests that there is a correlation with age and structure of the crust. 206Pb204Pb\">206Pb204Pb is greater than 18.92 in northern Washington and southern Oregon where deposits have intruded Mesozoic or older crust. However, the ore deposits between the northern Oregon border and central Oregon, south of Eugene, have intruded younger crust composed largely of mafic and andesitic volcanic rocks and 206Pb204Pb\">206Pb204Pb lies between 18.84 and 18.92. This region, previously called the Columbia embayment, appears to be underlain by Tertiary volcanic rocks. Lead-isotopic data may be used to define the boundaries between discontinuous blocks of Mesozoic crust and Tertiary volcanic cover.

","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(86)90180-8","issn":"00167037","usgsCitation":"Church, S.E., LeHuray, A., Grant, A., Delevaux, M., and Gray, J.E., 1986, Lead-isotopic data from sulfide minerals from the Cascade Range, Oregon and Washington: Geochimica et Cosmochimica Acta, v. 50, no. 2, p. 317-328, https://doi.org/10.1016/0016-7037(86)90180-8.","productDescription":"12 p.","startPage":"317","endPage":"328","numberOfPages":"12","costCenters":[],"links":[{"id":224449,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a45dfe4b0c8380cd674fb","contributors":{"authors":[{"text":"Church, S. E.","contributorId":58260,"corporation":false,"usgs":true,"family":"Church","given":"S.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":369848,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"LeHuray, A.P.","contributorId":63023,"corporation":false,"usgs":true,"family":"LeHuray","given":"A.P.","affiliations":[],"preferred":false,"id":369849,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Grant, A.R.","contributorId":12487,"corporation":false,"usgs":true,"family":"Grant","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":369845,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Delevaux, M.H.","contributorId":27853,"corporation":false,"usgs":true,"family":"Delevaux","given":"M.H.","email":"","affiliations":[],"preferred":false,"id":369846,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Gray, J. E.","contributorId":49363,"corporation":false,"usgs":true,"family":"Gray","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":369847,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70014869,"text":"70014869 - 1986 - Seismically induced landslides: current research by the US Geological Survey.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:34","indexId":"70014869","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1774,"text":"Geologia Applicata e Idrogeologia","active":true,"publicationSubtype":{"id":10}},"title":"Seismically induced landslides: current research by the US Geological Survey.","docAbstract":"We have produced a regional seismic slope-stability map and a probabilistic prediction of landslide distribution from a postulated earthquake. For liquefaction-induced landslides, in situ measurements of seismically induced pore-water pressures have been used to establish an elastic model of pore pressure generation. -from Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geologia Applicata e Idrogeologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"04353870","usgsCitation":"Harp, E.L., Wilson, R.C., Keefer, D.K., and Wieczorek, G.F., 1986, Seismically induced landslides: current research by the US Geological Survey.: Geologia Applicata e Idrogeologia, v. 21, no. 2, p. 159-173.","startPage":"159","endPage":"173","numberOfPages":"15","costCenters":[],"links":[{"id":225857,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8b88e4b08c986b3178df","contributors":{"authors":[{"text":"Harp, E. L.","contributorId":59026,"corporation":false,"usgs":true,"family":"Harp","given":"E.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":369484,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilson, R. C.","contributorId":50889,"corporation":false,"usgs":true,"family":"Wilson","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":369483,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keefer, D. K.","contributorId":21176,"corporation":false,"usgs":true,"family":"Keefer","given":"D.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":369481,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wieczorek, G. F.","contributorId":50143,"corporation":false,"usgs":true,"family":"Wieczorek","given":"G.","middleInitial":"F.","affiliations":[],"preferred":false,"id":369482,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70015575,"text":"70015575 - 1986 - A finite element model for tidal and residual circulation","interactions":[],"lastModifiedDate":"2023-09-21T15:45:28.62196","indexId":"70015575","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1280,"text":"Communications in Numerical Methods in Engineering","active":true,"publicationSubtype":{"id":10}},"title":"A finite element model for tidal and residual circulation","docAbstract":"

Harmonic decomposition is applied to the shallow water equations, thereby creating a system of equations for the amplitude of the various tidal constituents and for the residual motions. The resulting equations are elliptic in nature, are well posed and in practice are shown to be numerically well-behaved. There are a number of strategies for choosing elements: the two extremes are to use a few high-order elements with continous derivatives, or to use a large number of simpler linear elements. In this paper simple linear elements are used and prove effective.

","language":"English","publisher":"Wiley","doi":"10.1002/cnm.1630020410","usgsCitation":"Walters, R.A., 1986, A finite element model for tidal and residual circulation: Communications in Numerical Methods in Engineering, v. 2, no. 4, p. 393-398, https://doi.org/10.1002/cnm.1630020410.","productDescription":"6 p.","startPage":"393","endPage":"398","numberOfPages":"6","costCenters":[],"links":[{"id":223726,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"4","noUsgsAuthors":false,"publicationDate":"2005-06-20","publicationStatus":"PW","scienceBaseUri":"505a0e76e4b0c8380cd5347a","contributors":{"authors":[{"text":"Walters, Roy A.","contributorId":74877,"corporation":false,"usgs":true,"family":"Walters","given":"Roy","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":371266,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70015051,"text":"70015051 - 1986 - Use of dust storm observations on satellite images to identify areas vulnerable to severe wind erosion","interactions":[],"lastModifiedDate":"2012-03-12T17:19:00","indexId":"70015051","displayToPublicDate":"1986-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1252,"text":"Climatic Change","active":true,"publicationSubtype":{"id":10}},"title":"Use of dust storm observations on satellite images to identify areas vulnerable to severe wind erosion","docAbstract":"Blowing dust is symptomatic of severe wind erosion and deterioration of soils in areas undergoing dessication and/or devegetation. Dust plumes on satellite images can commonly be traced to sources in marginally arable semiarid areas where protective lag gravels or vegetation have been removed and soils are dry, as demonstrated for the Portales Valley, New Mexico. Images from Landsat and manned orbiters such as Skylab and the Space Shuttle are useful for illustrating the regional relations of airborne dust plumes to source areas. Geostationary satellites such as GOES are useful in tracking the time-histories of episodic dust storms. These events sometimes go unrecognized by weather observers and are the precursors of long-term land degradation trends. In areas where soil maps and meteorological data are inadequate, satellite images provide a means for identifying problem areas where measures are needed to control or mitigate wind erosion. ?? 1986 D. Reidel Publishing Company.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Climatic Change","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF00140539","issn":"01650009","usgsCitation":"Breed, C.S., and McCauley, J., 1986, Use of dust storm observations on satellite images to identify areas vulnerable to severe wind erosion: Climatic Change, v. 9, no. 1-2, p. 243-258, https://doi.org/10.1007/BF00140539.","startPage":"243","endPage":"258","numberOfPages":"16","costCenters":[],"links":[{"id":205440,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00140539"},{"id":224068,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbeeae4b08c986b329869","contributors":{"authors":[{"text":"Breed, C. S.","contributorId":39809,"corporation":false,"usgs":true,"family":"Breed","given":"C.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":369945,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McCauley, J.F.","contributorId":26310,"corporation":false,"usgs":true,"family":"McCauley","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":369944,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}