{"pageNumber":"4885","pageRowStart":"122100","pageSize":"25","recordCount":184606,"records":[{"id":70174099,"text":"70174099 - 1986 - Hydrology of carbonate aquifers in southwestern Linn County and adjacent parts of Benton, Iowa, and Johnson Counties, Iowa","interactions":[],"lastModifiedDate":"2025-07-30T14:37:03.487347","indexId":"70174099","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":148,"text":"Water Supply Bulletin","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"15","title":"Hydrology of carbonate aquifers in southwestern Linn County and adjacent parts of Benton, Iowa, and Johnson Counties, Iowa","docAbstract":"<p>Groundwater is the major source of water in Linn County and the surrounding area. Approximately 90 percent of the groundwater production is from Silurian, Devonian, and Quaternary aquifers.</p>\n<p>The Silurian and Devonian aquifers consist of limestone and dolomite with minor shale beds, which have a regional dip to the southwest of approximately 20 feet per mile. The Silurian aquifer in east-central Iowa is confined from below by Upper Ordovician, Maquoketa Formation shales, and from above by the Kenwood Member of the Wapsipinicon Formation and the Otis and Bertram formations. The Quaternary aquifer consists of unconsolidated sand and gravel beds in the glacial drift, and in the alluvium which is associated with modern streams. The alluvium consists of lenticular beds of poorly-to well-sorted silt, sand, and gravel. The sand and gravel beds are interlayered with relatively-impermeable beds of till, silt, and clay.</p>\n<p>Water moves through the Silurian aquifer in part due to a complex distribution of porous and dense carbonate facies. Horizons containing skeletal molds in the Silurian dolomite have porosities as much as 39 percent, and are laterally equivalent to dolomites with porosities as little as less than one percent. Because of subsequent fracturing and solutional enlargement of these porous horizons, hydrologic correlation of the primary water-yielding zones is not always possible. One horizon, however, does occur approximately 70 to 105 feet above the base of the Silurian, and is the most consistently productive water-yielding unit in the area. This horizon is Informally referred to as the Farmers Creek aquifer.</p>\n<p>The potentiometric surface of the Silurian aquifer has a gradient towards the Cedar River, indicating discharge from the aquifer through the alluvium into the river. By comparison, the potentiometric surface of the overlying Devonian aquifer is equal to that of the Silurian and may range to more than 40 feet higher. Yields to individual wells completed in the Silurian and Devonian carbonate aquifers vary from less than 10 to about 500 gallons per minute. Individual wells completed in the Quaternary aquifer yield as much as 2,000 gallons per minute.</p>\n<p>Water analyses from the Devonian and Silurian aquifers indicate that they are of similar chemical quality at most locations in the study area. However, they may commonly contain concentrations of sulfate that exceed 1,000 mil grams per liter. Dissolved-solids concentrations as much as 2,350 milligrams per liter occur in the Silurian aquifer in the western and southwestern part of the study area. Water from the Quaternary aquifer generally is suitable for most uses and dissolved-solids concentrations generally are less than 750 milligrams per liter.</p>","language":"English","publisher":"State of Iowa","publisherLocation":"Des Moines, IA","usgsCitation":"Wahl, K., and Bunker, B.J., 1986, Hydrology of carbonate aquifers in southwestern Linn County and adjacent parts of Benton, Iowa, and Johnson Counties, Iowa: Water Supply Bulletin 15, ix, 56 p.","productDescription":"ix, 56 p.","numberOfPages":"63","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":351,"text":"Iowa Water Science Center","active":true,"usgs":true}],"links":[{"id":493181,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/70174099/IGS_wsb_15.pdf","text":"Report","size":"4.01 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":324479,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Iowa","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -91.9281005859375,\n              41.79384042311992\n            ],\n            [\n              -91.9281005859375,\n              42.25088477477569\n            ],\n            [\n              -91.45294189453125,\n              42.25088477477569\n            ],\n            [\n              -91.45294189453125,\n              41.79384042311992\n            ],\n            [\n              -91.9281005859375,\n              41.79384042311992\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57724e31e4b07657d1a8199b","contributors":{"authors":[{"text":"Wahl, Kenneth","contributorId":172488,"corporation":false,"usgs":false,"family":"Wahl","given":"Kenneth","affiliations":[],"preferred":false,"id":640900,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bunker, Bill J.","contributorId":172487,"corporation":false,"usgs":false,"family":"Bunker","given":"Bill","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":640901,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":14275,"text":"ofr8756 - 1986 - Preliminary inversions and principal facts for direct-current soundings, Kilauea Volcano, Hawaii","interactions":[],"lastModifiedDate":"2022-08-12T19:55:45.420125","indexId":"ofr8756","displayToPublicDate":"1987-01-01T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"87-56","title":"Preliminary inversions and principal facts for direct-current soundings, Kilauea Volcano, Hawaii","docAbstract":"<p>No abstract available.&nbsp;</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr8756","usgsCitation":"Jackson, D.B., Zablocki, C.J., and Kauahikaua, J., 1986, Preliminary inversions and principal facts for direct-current soundings, Kilauea Volcano, Hawaii: U.S. Geological Survey Open-File Report 87-56, 86 p., https://doi.org/10.3133/ofr8756.","productDescription":"86 p.","costCenters":[],"links":[{"id":383011,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/1987/0056/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":146020,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/of/1987/0056/report-thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.2855682373047,\n              19.39471557731923\n            ],\n            [\n              -155.21896362304688,\n              19.39471557731923\n            ],\n            [\n              -155.21896362304688,\n              19.44134189745716\n            ],\n            [\n              -155.2855682373047,\n              19.44134189745716\n            ],\n            [\n              -155.2855682373047,\n              19.39471557731923\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abce4b07f02db67322d","contributors":{"authors":[{"text":"Jackson, Dallas B.","contributorId":19947,"corporation":false,"usgs":true,"family":"Jackson","given":"Dallas","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":169188,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zablocki, Charles J.","contributorId":48961,"corporation":false,"usgs":true,"family":"Zablocki","given":"Charles","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":169190,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kauahikaua, Jim","contributorId":47366,"corporation":false,"usgs":true,"family":"Kauahikaua","given":"Jim","email":"","affiliations":[],"preferred":false,"id":169189,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70206952,"text":"70206952 - 1986 - Geology and geochemistry of the Deer Trail Pb-Zn-Ag-Cu manto deposits, Marysvale District, west-central Utah","interactions":[],"lastModifiedDate":"2019-12-02T06:40:45","indexId":"70206952","displayToPublicDate":"1986-12-31T16:20:47","publicationYear":"1986","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":"Geology and geochemistry of the Deer Trail Pb-Zn-Ag-Cu manto deposits, Marysvale District, west-central Utah","docAbstract":"<p><span>Strata-bound sulphide replacement bodies in the Deer Trail mine are sinuous pipes in carbonate beds, approximately localized by an anticlinal axis, and radiate from a fault across the lower part of the Permian Toroweap formation. Indistinct sericitic envelopes provide a K/Ar age of 14 m.y., correlative with barren, altered volcanic rocks above a hypothesized intrusion, 1 km to the west. Lead and sulphur isotope data imply an igneous source. Inclusion data and deuterium and oxygen isotopes imply a magmatic fluid progressively diluted with meteoric waters. The deposits are the outer zone of a volcanic hydrothermal system. -G.J.N.</span></p>","language":"English","publisher":"Geological Society of America","doi":"10.2113/gsecongeo.81.8.1932","issn":"03610128","usgsCitation":"Beaty, D., Cunningham, C.G., Rye, R., Steven, T.A., and Gonzalez- Urien, E., 1986, Geology and geochemistry of the Deer Trail Pb-Zn-Ag-Cu manto deposits, Marysvale District, west-central Utah: Economic Geology, v. 81, no. 8, p. 1932-1952, https://doi.org/10.2113/gsecongeo.81.8.1932.","productDescription":"21 p.","startPage":"1932","endPage":"1952","costCenters":[],"links":[{"id":369778,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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,{"id":70205265,"text":"70205265 - 1986 - Influence of particle-size separation technique on concentrations of sediment-associated trace metals","interactions":[],"lastModifiedDate":"2019-09-12T07:06:05","indexId":"70205265","displayToPublicDate":"1986-12-31T15:39:09","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Influence of particle-size separation technique on concentrations of sediment-associated trace metals","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of Meetings of American Geophysical Union","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"American Geophysical Union","usgsCitation":"Koltun, G.F., and Helsel, D., 1986, Influence of particle-size separation technique on concentrations of sediment-associated trace metals, <i>in</i> Proceedings of Meetings of American Geophysical Union, 1 p.","productDescription":"1 p.","costCenters":[{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true}],"links":[{"id":367329,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Koltun, G. F. 0000-0003-0255-2960 gfkoltun@usgs.gov","orcid":"https://orcid.org/0000-0003-0255-2960","contributorId":140048,"corporation":false,"usgs":true,"family":"Koltun","given":"G.","email":"gfkoltun@usgs.gov","middleInitial":"F.","affiliations":[{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true}],"preferred":true,"id":770607,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Helsel, D.R.","contributorId":57448,"corporation":false,"usgs":false,"family":"Helsel","given":"D.R.","email":"","affiliations":[{"id":7242,"text":"Wisconsin Department of Natural Resources, Madison, WI, USA","active":true,"usgs":false}],"preferred":false,"id":770608,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70208015,"text":"70208015 - 1986 - An oil spill and hazardous waste vulnerability modeling approach (Coastal Louisiana)","interactions":[],"lastModifiedDate":"2020-01-24T06:26:41","indexId":"70208015","displayToPublicDate":"1986-12-31T15:00:22","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"An oil spill and hazardous waste vulnerability modeling approach (Coastal Louisiana)","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Geographic information systems for environmental protection : A workshop","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Geographic information systems for environmental protection : A workshop","conferenceDate":"January 22-23, 1986","conferenceLocation":"Las Vegas, NV","language":"English","publisher":"Environmental Research Center","usgsCitation":"Stayner, F.O., Johnston, J.B., and Scurry, J.D., 1986, An oil spill and hazardous waste vulnerability modeling approach (Coastal Louisiana), <i>in</i> Geographic information systems for environmental protection : A workshop, Las Vegas, NV, January 22-23, 1986, p. 163-169.","productDescription":"7 p.","startPage":"163","endPage":"169","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":371502,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisiana","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -93.6474609375,\n              30.467614102257855\n            ],\n            [\n              -93.93310546875,\n              29.7453016622136\n            ],\n            [\n              -93.1201171875,\n              29.611670115197377\n            ],\n            [\n              -92.10937499999999,\n              29.420460341013133\n            ],\n            [\n              -91.56005859375,\n              29.286398892934763\n            ],\n            [\n              -90.98876953125,\n              29.017748018496047\n            ],\n            [\n              -89.71435546875,\n              29.075375179558346\n            ],\n            [\n              -89.12109375,\n              28.825425374477224\n            ],\n            [\n              -88.11035156249999,\n              29.22889003019423\n            ],\n            [\n              -88.22021484375,\n              29.916852233070173\n            ],\n            [\n              -89.31884765624999,\n              30.050076521698735\n            ],\n            [\n              -89.75830078125,\n              30.372875188118016\n            ],\n            [\n              -93.6474609375,\n              30.467614102257855\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Stayner, Floyd O.","contributorId":216223,"corporation":false,"usgs":false,"family":"Stayner","given":"Floyd","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":780156,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnston, James B.","contributorId":78039,"corporation":false,"usgs":true,"family":"Johnston","given":"James","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":780157,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scurry, James D.","contributorId":221241,"corporation":false,"usgs":false,"family":"Scurry","given":"James","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":780158,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70216462,"text":"70216462 - 1986 - A two-water model of aluminum mobilization and immobilization in a natural soil system","interactions":[],"lastModifiedDate":"2020-11-19T20:52:21.12712","indexId":"70216462","displayToPublicDate":"1986-12-31T14:51:49","publicationYear":"1986","noYear":false,"publicationType":{"id":21,"text":"Thesis"},"publicationSubtype":{"id":28,"text":"Thesis"},"title":"A two-water model of aluminum mobilization and immobilization in a natural soil system","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"University of Virginia","usgsCitation":"Cozzarelli, I.M., 1986, A two-water model of aluminum mobilization and immobilization in a natural soil system, 162 p.","productDescription":"162 p.","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":380630,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Cozzarelli, Isabelle M. 0000-0002-5123-1007 icozzare@usgs.gov","orcid":"https://orcid.org/0000-0002-5123-1007","contributorId":1693,"corporation":false,"usgs":true,"family":"Cozzarelli","given":"Isabelle","email":"icozzare@usgs.gov","middleInitial":"M.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":49175,"text":"Geology, Energy & Minerals Science Center","active":true,"usgs":true}],"preferred":true,"id":805194,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70207306,"text":"70207306 - 1986 - E.E.Z. may have waste-disposal options","interactions":[],"lastModifiedDate":"2019-12-16T14:23:02","indexId":"70207306","displayToPublicDate":"1986-12-31T14:19:29","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1829,"text":"Geotimes","active":true,"publicationSubtype":{"id":10}},"title":"E.E.Z. may have waste-disposal options","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"American Geological Institute","usgsCitation":"Manheim, F.T., and Vine, A., 1986, E.E.Z. may have waste-disposal options: Geotimes, v. 31, p. 8-10.","productDescription":"3 p.","startPage":"8","endPage":"10","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":370317,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Manheim, Frank T. 0000-0003-4005-4524","orcid":"https://orcid.org/0000-0003-4005-4524","contributorId":20770,"corporation":false,"usgs":true,"family":"Manheim","given":"Frank","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":777638,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vine, Allyn","contributorId":221284,"corporation":false,"usgs":false,"family":"Vine","given":"Allyn","email":"","affiliations":[],"preferred":false,"id":777639,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70203810,"text":"70203810 - 1986 - Preserving coastal wetlands: A geographic information system's approach to resource management in the U.S. Fish and Wildlife Service","interactions":[],"lastModifiedDate":"2019-06-13T13:48:31","indexId":"70203810","displayToPublicDate":"1986-12-31T13:41:46","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Preserving coastal wetlands: A geographic information system's approach to resource management in the U.S. Fish and Wildlife Service","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"Exemplary Systems in Government Awards, 1986","largerWorkSubtype":{"id":19,"text":"Conference Paper"},"language":"English","publisher":"URISA","usgsCitation":"Scurry, J., and Stayner, F.O., 1986, Preserving coastal wetlands: A geographic information system's approach to resource management in the U.S. Fish and Wildlife Service, <i>in</i> Exemplary Systems in Government Awards, 1986, p. 181-199.","productDescription":"19 p.","startPage":"181","endPage":"199","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":364647,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Scurry, James D.","contributorId":214536,"corporation":false,"usgs":false,"family":"Scurry","given":"James D.","affiliations":[],"preferred":false,"id":764218,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stayner, Floyd O.","contributorId":216223,"corporation":false,"usgs":false,"family":"Stayner","given":"Floyd","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":764219,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70206245,"text":"70206245 - 1986 - The use of electromagnetic methods to delineate vertical and lateral lithologic changes in glacial aquifers","interactions":[],"lastModifiedDate":"2019-10-25T13:46:30","indexId":"70206245","displayToPublicDate":"1986-12-31T13:41:22","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The use of electromagnetic methods to delineate vertical and lateral lithologic changes in glacial aquifers","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the Surface and Borehole Geophysical Methods and Ground Water Instrumentation Conference and Exposition","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"National Water Well Association Conference on Surface and Borehole Geophysical Methods and Ground Water Instrumentation","conferenceDate":"October 15-17, 1986","conferenceLocation":"Denver CO","language":"English","publisher":"National Water Well Association","usgsCitation":"Haeni, F., 1986, The use of electromagnetic methods to delineate vertical and lateral lithologic changes in glacial aquifers, <i>in</i> Proceedings of the Surface and Borehole Geophysical Methods and Ground Water Instrumentation Conference and Exposition, Denver CO, October 15-17, 1986, p. 259-282.","productDescription":"24 p.","startPage":"259","endPage":"282","costCenters":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"links":[{"id":368619,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Haeni, F.P.","contributorId":87105,"corporation":false,"usgs":true,"family":"Haeni","given":"F.P.","affiliations":[],"preferred":false,"id":773921,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70204777,"text":"70204777 - 1986 - Measuring the success of wetlands mitigation","interactions":[],"lastModifiedDate":"2019-08-15T12:38:24","indexId":"70204777","displayToPublicDate":"1986-12-31T12:33:35","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2819,"text":"National Wetlands Newsletter","active":true,"publicationSubtype":{"id":10}},"title":"Measuring the success of wetlands mitigation","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Environmental Law Institute","usgsCitation":"Quammen, M.L., 1986, Measuring the success of wetlands mitigation: National Wetlands Newsletter, v. 8, no. 5, p. 6-8.","productDescription":"3 p.","startPage":"6","endPage":"8","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":366571,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","volume":"8","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Quammen, Millicent L.","contributorId":218143,"corporation":false,"usgs":false,"family":"Quammen","given":"Millicent","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":768459,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70207634,"text":"70207634 - 1986 - Rock-water interaction in ash-flow tuffs (Yucca Mountain, Nevada, USA)- The record from uranium studies","interactions":[],"lastModifiedDate":"2020-06-04T14:34:09.362526","indexId":"70207634","displayToPublicDate":"1986-12-31T12:20:42","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3668,"text":"Uranium","active":true,"publicationSubtype":{"id":10}},"title":"Rock-water interaction in ash-flow tuffs (Yucca Mountain, Nevada, USA)- The record from uranium studies","docAbstract":"<p><span>Forty-eight core samples of ash-flow tuffs from Yucca Mountain, NV, were selected for comparative analysis by uranium-based methods to estimate past interaction with oxidizing water. Results aid in the selection of hydrologically isolated host rocks for radioactive waste disposal. U abundances were consistently more variable than thorium in whole rocks, suggesting some selective redistribution of U. Dissolved U correlates most strongly with dissolved manganese, indicating a predominant association of U with manganese oxides.</span></p>","language":"English","publisher":"Elsevier","usgsCitation":"Zielinski, R.A., Bush, C.A., Spengler, R., and Szabo, B.J., 1986, Rock-water interaction in ash-flow tuffs (Yucca Mountain, Nevada, USA)- The record from uranium studies: Uranium, v. 2, no. 4, p. 361-386.","productDescription":"26 p.","startPage":"361","endPage":"386","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":370902,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Yucca Mountains","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -116.51550292968749,\n              35.98689628443789\n            ],\n            [\n              -113.7469482421875,\n              35.98689628443789\n            ],\n            [\n              -113.7469482421875,\n              37.36579146999664\n            ],\n            [\n              -116.51550292968749,\n              37.36579146999664\n            ],\n            [\n              -116.51550292968749,\n              35.98689628443789\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"2","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Zielinski, Robert A. 0000-0002-4047-5129 rzielinski@usgs.gov","orcid":"https://orcid.org/0000-0002-4047-5129","contributorId":1593,"corporation":false,"usgs":true,"family":"Zielinski","given":"Robert","email":"rzielinski@usgs.gov","middleInitial":"A.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":778686,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bush, Charles A. cbush@usgs.gov","contributorId":1258,"corporation":false,"usgs":true,"family":"Bush","given":"Charles","email":"cbush@usgs.gov","middleInitial":"A.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":778687,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Spengler, R.W.","contributorId":7281,"corporation":false,"usgs":true,"family":"Spengler","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":778688,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Szabo, Barney J.","contributorId":6848,"corporation":false,"usgs":true,"family":"Szabo","given":"Barney","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":778689,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70207338,"text":"70207338 - 1986 - Cobalt-rich ferromanganese crusts from the Central Pacific","interactions":[],"lastModifiedDate":"2019-12-17T12:19:46","indexId":"70207338","displayToPublicDate":"1986-12-31T12:12:58","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Cobalt-rich ferromanganese crusts from the Central Pacific","docAbstract":"<p><span>Ferromanganese crusts coat most hard substrates on seamounts, ridges, and plateaus in the centralPacific basin. Crusts from less than 2500 m water depth are rich in Mn, Co, Ni, Pb, and Pt. Samples we collected from the EEl of the Hawaiian, Johnston, Palmyra, and Marshall Islands are discussed. Necker Ridge in the Hawaiian EEl has the greatest average crust thickness of 4 em. The dominant mineral in all crusts is o-Mn02' Substrate rocks are dominantly volcanic breccia. Slumping and turbidity currents on the flanks of the submarine edifices partly control crust thicknesses by burial and dissolution or erosion. Regional variations in crust chemistry and mineralogy can be related to various oceanographic and geologic conditions. Of the areas examined in Some detail, the EEl of Johnston, Palmyra, and the Marshall Islands hold the greatest economic potential.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the Offshore Technology Conference","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Offshore Technology Conference","conferenceDate":"May 5-8, 1986","conferenceLocation":"Houston, TX","language":"English","publisher":"Offshore Technology Conference","doi":"10.4043/5234-MS","usgsCitation":"Hein, J.R., Manheim, F.T., and Schwab, W.C., 1986, Cobalt-rich ferromanganese crusts from the Central Pacific, <i>in</i> Proceedings of the Offshore Technology Conference, Houston, TX, May 5-8, 1986, p. 119-126, https://doi.org/10.4043/5234-MS.","productDescription":"8 p.","startPage":"119","endPage":"126","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":370355,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Pacific Ocean","noUsgsAuthors":false,"publicationDate":"2013-04-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Hein, James R. 0000-0002-5321-899X jhein@usgs.gov","orcid":"https://orcid.org/0000-0002-5321-899X","contributorId":140835,"corporation":false,"usgs":true,"family":"Hein","given":"James","email":"jhein@usgs.gov","middleInitial":"R.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":777749,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Manheim, Frank T. 0000-0003-4005-4524","orcid":"https://orcid.org/0000-0003-4005-4524","contributorId":20770,"corporation":false,"usgs":true,"family":"Manheim","given":"Frank","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":777750,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schwab, William C. 0000-0001-9274-5154 bschwab@usgs.gov","orcid":"https://orcid.org/0000-0001-9274-5154","contributorId":417,"corporation":false,"usgs":true,"family":"Schwab","given":"William","email":"bschwab@usgs.gov","middleInitial":"C.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":777751,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70207499,"text":"70207499 - 1986 - Ferromanganese crusts","interactions":[],"lastModifiedDate":"2019-12-23T07:25:01","indexId":"70207499","displayToPublicDate":"1986-12-31T11:29:53","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Ferromanganese crusts","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings, exclusive economic zone symposium, exploring the new ocean frontier","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Exclusive Economic Zone Symposium, Exploring the New Ocean Frontier","conferenceDate":"October 2-3, 1985","conferenceLocation":"Washington, DC","language":"English","publisher":"U.S. Department of Commerce","usgsCitation":"Manheim, F.T., and Hein, J.R., 1986, Ferromanganese crusts, <i>in</i> Proceedings, exclusive economic zone symposium, exploring the new ocean frontier, Washington, DC, October 2-3, 1985, p. 79-95.","productDescription":"17 p.","startPage":"79","endPage":"95","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":370565,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Manheim, Frank T. 0000-0003-4005-4524","orcid":"https://orcid.org/0000-0003-4005-4524","contributorId":20770,"corporation":false,"usgs":true,"family":"Manheim","given":"Frank","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":778237,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hein, James R. 0000-0002-5321-899X jhein@usgs.gov","orcid":"https://orcid.org/0000-0002-5321-899X","contributorId":140835,"corporation":false,"usgs":true,"family":"Hein","given":"James","email":"jhein@usgs.gov","middleInitial":"R.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":778238,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70208742,"text":"70208742 - 1986 - Morphology and stratigraphic occurrence of the marine diatom genus Brightwellia Ralfs","interactions":[],"lastModifiedDate":"2020-02-27T11:25:34","indexId":"70208742","displayToPublicDate":"1986-12-31T11:16:49","publicationYear":"1986","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"displayTitle":"Morphology and stratigraphic occurrence of the marine diatom genus <i>Brightwellia</i> Ralfs","title":"Morphology and stratigraphic occurrence of the marine diatom genus Brightwellia Ralfs","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the eighth international diatom symposium","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Eighth International Diatom Symposium","conferenceDate":"Aug 27-Sep 1, 1984","conferenceLocation":"Paris, France","language":"English","publisher":"Koeltz Scientific Books","usgsCitation":"Andrews, G., 1986, Morphology and stratigraphic occurrence of the marine diatom genus Brightwellia Ralfs, <i>in</i> Proceedings of the eighth international diatom symposium, Paris, France, Aug 27-Sep 1, 1984, p. 125-140.","productDescription":"16 p.","startPage":"125","endPage":"140","costCenters":[],"links":[{"id":372695,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Andrews, George W.","contributorId":40621,"corporation":false,"usgs":true,"family":"Andrews","given":"George W.","affiliations":[],"preferred":false,"id":783251,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70209970,"text":"70209970 - 1986 - Impact of time and climate on Quaternary soils in the Yucca Mountain area of the Nevada Test Site","interactions":[],"lastModifiedDate":"2020-05-07T16:10:01.560538","indexId":"70209970","displayToPublicDate":"1986-12-31T11:09:43","publicationYear":"1986","noYear":false,"publicationType":{"id":21,"text":"Thesis"},"publicationSubtype":{"id":28,"text":"Thesis"},"title":"Impact of time and climate on Quaternary soils in the Yucca Mountain area of the Nevada Test Site","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"University of Colorado-Boulder","usgsCitation":"Taylor, E.M., 1986, Impact of time and climate on Quaternary soils in the Yucca Mountain area of the Nevada Test Site, 217 p.","productDescription":"217 p.","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":374533,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Yucca Mountain","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -116.48254394531249,\n              36.91352904330221\n            ],\n            [\n              -116.43602371215822,\n              36.91352904330221\n            ],\n            [\n              -116.43602371215822,\n              36.95757376878687\n            ],\n            [\n              -116.48254394531249,\n              36.95757376878687\n            ],\n            [\n              -116.48254394531249,\n              36.91352904330221\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Taylor, Emily M. 0000-0003-1152-5761 emtaylor@usgs.gov","orcid":"https://orcid.org/0000-0003-1152-5761","contributorId":127802,"corporation":false,"usgs":true,"family":"Taylor","given":"Emily","email":"emtaylor@usgs.gov","middleInitial":"M.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":788641,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70236863,"text":"70236863 - 1986 - Guidelines for forestry information processing with particular reference to developing countries","interactions":[],"lastModifiedDate":"2022-09-20T16:03:15.200528","indexId":"70236863","displayToPublicDate":"1986-12-31T10:56:08","publicationYear":"1986","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Guidelines for forestry information processing with particular reference to developing countries","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Food and Agriculture Organization of the United Nations","usgsCitation":"van Roessel, J.W., 1986, Guidelines for forestry information processing with particular reference to developing countries, 105 p.","productDescription":"105 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":407063,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"van Roessel, Jan W.","contributorId":35745,"corporation":false,"usgs":true,"family":"van Roessel","given":"Jan","email":"","middleInitial":"W.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":852395,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70208782,"text":"70208782 - 1986 - International society for diatom research founded 1985","interactions":[],"lastModifiedDate":"2020-02-28T10:46:09","indexId":"70208782","displayToPublicDate":"1986-12-31T10:42:11","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1388,"text":"Diatom Research","active":true,"publicationSubtype":{"id":10}},"title":"International society for diatom research founded 1985","docAbstract":"<p>No abstract available.&nbsp;</p>","language":"English","publisher":"Taylor & Francis","doi":"10.1080/0269249X.1986.9704965","usgsCitation":"Gasse, F., Hasle, G.R., Andrews, G., Simola, H., Fryxell, G.A., and Barron, J.A., 1986, International society for diatom research founded 1985: Diatom Research, v. 1, no. 2, https://doi.org/10.1080/0269249X.1986.9704965.","productDescription":"1 p.","startPage":"1","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":372736,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Gasse, F.","contributorId":78103,"corporation":false,"usgs":true,"family":"Gasse","given":"F.","email":"","affiliations":[],"preferred":false,"id":783372,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hasle, G. R.","contributorId":222858,"corporation":false,"usgs":false,"family":"Hasle","given":"G.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":783373,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Andrews, George W.","contributorId":40621,"corporation":false,"usgs":true,"family":"Andrews","given":"George W.","affiliations":[],"preferred":false,"id":783374,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Simola, H.","contributorId":222859,"corporation":false,"usgs":false,"family":"Simola","given":"H.","email":"","affiliations":[],"preferred":false,"id":783375,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fryxell, G. A.","contributorId":222860,"corporation":false,"usgs":false,"family":"Fryxell","given":"G.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":783376,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Barron, John A. 0000-0002-9309-1145 jbarron@usgs.gov","orcid":"https://orcid.org/0000-0002-9309-1145","contributorId":2222,"corporation":false,"usgs":true,"family":"Barron","given":"John","email":"jbarron@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":783377,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70208602,"text":"70208602 - 1986 - Data bases for use in fish and wildlife: Mitigation planning in Tampa Bay Florida: Project summary","interactions":[],"lastModifiedDate":"2020-02-20T11:01:23","indexId":"70208602","displayToPublicDate":"1986-12-31T10:39:28","publicationYear":"1986","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":5853,"text":"NWRC Open File","active":true,"publicationSubtype":{"id":1}},"seriesNumber":"86-6","title":"Data bases for use in fish and wildlife: Mitigation planning in Tampa Bay Florida: Project summary","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"U.S. Fish and Wildlife Service","usgsCitation":"Fehring, W.K., and Quammen, M.L., 1986, Data bases for use in fish and wildlife: Mitigation planning in Tampa Bay Florida: Project summary: NWRC Open File 86-6, viii, 38 p.","productDescription":"viii, 38 p.","costCenters":[{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":372452,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","otherGeospatial":"Tampa Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -82.68173217773438,\n              27.50096297646164\n            ],\n            [\n              -82.59109497070312,\n              27.52166895496826\n            ],\n            [\n              -82.43453979492186,\n              27.752823008396483\n            ],\n            [\n              -82.3809814453125,\n              27.836647367576422\n            ],\n            [\n              -82.4139404296875,\n              27.937393821330247\n            ],\n            [\n              -82.47024536132812,\n              27.948312499250406\n            ],\n            [\n              -82.49771118164062,\n              27.919193572615065\n            ],\n            [\n              -82.48397827148438,\n              27.83421858600917\n            ],\n            [\n              -82.540283203125,\n              27.85000469432248\n            ],\n            [\n              -82.52105712890625,\n              27.89006680192903\n            ],\n            [\n              -82.52243041992188,\n              27.94467306257741\n            ],\n            [\n              -82.69134521484374,\n              28.04895490674507\n            ],\n            [\n              -82.70645141601562,\n              27.978636367553744\n            ],\n            [\n              -82.73391723632812,\n              27.953164890693838\n            ],\n            [\n              -82.63641357421875,\n              27.879142241732627\n            ],\n            [\n              -82.61306762695312,\n              27.847576211806295\n            ],\n            [\n              -82.61581420898438,\n              27.806283691459722\n            ],\n            [\n              -82.628173828125,\n              27.788061410911272\n            ],\n            [\n              -82.63641357421875,\n              27.721220259148765\n            ],\n            [\n              -82.64877319335938,\n              27.70784710660343\n            ],\n            [\n              -82.67486572265625,\n              27.715141756723987\n            ],\n            [\n              -82.69683837890625,\n              27.721220259148765\n            ],\n            [\n              -82.72567749023438,\n              27.692040358081382\n            ],\n            [\n              -82.68173217773438,\n              27.50096297646164\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Fehring, William K.","contributorId":222599,"corporation":false,"usgs":false,"family":"Fehring","given":"William","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":782679,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Quammen, Millicent L.","contributorId":218143,"corporation":false,"usgs":false,"family":"Quammen","given":"Millicent","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":782680,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70217595,"text":"70217595 - 1986 - Sedimentology and clast orientations of the 18 May 1980 southwest- flank lahars, Mount St. Helens, Washington","interactions":[],"lastModifiedDate":"2021-01-22T15:03:12.941889","indexId":"70217595","displayToPublicDate":"1986-12-31T09:01:06","publicationYear":"1986","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":"Sedimentology and clast orientations of the 18 May 1980 southwest- flank lahars, Mount St. Helens, Washington","docAbstract":"<p><span>Three&nbsp;</span><span class=\"ScopusTermHighlight\">lahars</span><span>&nbsp;that resulted from the flow transformation of an inflated pyroclastic surge caused by ejected lithic debris and hydrothermal water during the cataclysmic&nbsp;</span><span class=\"ScopusTermHighlight\">Mount</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">St</span><span>.&nbsp;</span><span class=\"ScopusTermHighlight\">Helens</span><span>&nbsp;eruption of&nbsp;</span><span class=\"ScopusTermHighlight\">18</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">May</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">1980</span><span>&nbsp;deposited about 1 x 10</span><sup>6</sup><span>&nbsp;m</span><sup>3</sup><span>&nbsp;of massive, poorly sorted, poorly graded volcaniclastic sediment on the SW&nbsp;</span><span class=\"ScopusTermHighlight\">flank</span><span>&nbsp;(SWF). Downflow changes in mean grain size and sorting occur only in the coarse fraction of the deposits larger than a critical diameter of about 4mm, and occur only in the basal portion of the deposits; both mean grain size and sorting coefficient increase slightly with distance. The deposits show weak inverse grading with respect to mean grain size and exhibit a weak trend of upwardly poorer sorting, but&nbsp;</span><span class=\"ScopusTermHighlight\">lahar</span><span>&nbsp;</span><span class=\"ScopusTermHighlight\">clast</span><span>&nbsp;fabric&nbsp;</span><span class=\"ScopusTermHighlight\">may</span><span>&nbsp;be more complex and variable than previously suggested.</span></p>","language":"English","publisher":"Society for Sedimentary Geology","doi":"10.1306/212F8A1C-2B24-11D7-8648000102C1865D","usgsCitation":"Major, J.J., and Voight, B., 1986, Sedimentology and clast orientations of the 18 May 1980 southwest- flank lahars, Mount St. Helens, Washington: Journal of Sedimentary Petrology, v. 691, no. 705, 15 p., https://doi.org/10.1306/212F8A1C-2B24-11D7-8648000102C1865D.","productDescription":"15 p.","costCenters":[],"links":[{"id":382493,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United  States","state":"Washington","otherGeospatial":"Mount St. Helens","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.25860595703122,\n              46.1560536971598\n            ],\n            [\n              -122.14736938476561,\n              46.1560536971598\n            ],\n            [\n              -122.14736938476561,\n              46.21119992863992\n            ],\n            [\n              -122.25860595703122,\n              46.21119992863992\n            ],\n            [\n              -122.25860595703122,\n              46.1560536971598\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"691","issue":"705","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Major, Jon J. 0000-0003-2449-4466 jjmajor@usgs.gov","orcid":"https://orcid.org/0000-0003-2449-4466","contributorId":439,"corporation":false,"usgs":true,"family":"Major","given":"Jon","email":"jjmajor@usgs.gov","middleInitial":"J.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":808783,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Voight, B.","contributorId":16575,"corporation":false,"usgs":true,"family":"Voight","given":"B.","affiliations":[],"preferred":false,"id":808784,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70197686,"text":"70197686 - 1986 - Tectonic evolution of Northwest California and Southwest Oregon","interactions":[],"lastModifiedDate":"2018-06-18T10:08:49","indexId":"70197686","displayToPublicDate":"1986-12-31T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5712,"text":"Bulletin de la Société Géologique de France","active":true,"publicationSubtype":{"id":10}},"title":"Tectonic evolution of Northwest California and Southwest Oregon","docAbstract":"<p>Tectonostratigraphic terrances in northwest California and southwest Oregon record a complex history of subduction, collision, and transform faulting. During the late Jurassic Nevadan orogeny, the Elder Creek-Snow Camp and western Klamath terranes were imbricated during collision of an island-arc system with the continental margin. Subsequent collisions are recorded in the Pickett Peak (Early Cretaceous) and Yolla Bolly (middle Cretaceous) terranes.</p>","language":"English","publisher":"American Geosciences Institute","doi":"10.2113/gssgfbull.II.6.921","usgsCitation":"Blake, M.C., and Jayko, A.S., 1986, Tectonic evolution of Northwest California and Southwest Oregon: Bulletin de la Société Géologique de France, v. 11, no. 6, p. 921-930, https://doi.org/10.2113/gssgfbull.II.6.921.","productDescription":"10 p.","startPage":"921","endPage":"930","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":355109,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, Oregon","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -125.46386718749999,\n              37.47485808497102\n            ],\n            [\n              -119.35546875000001,\n              37.47485808497102\n            ],\n            [\n              -119.35546875000001,\n              45.182036837015886\n            ],\n            [\n              -125.46386718749999,\n              45.182036837015886\n            ],\n            [\n              -125.46386718749999,\n              37.47485808497102\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"11","issue":"6","noUsgsAuthors":false,"publicationDate":"1986-11-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Blake, M. Clark Jr.","contributorId":56675,"corporation":false,"usgs":true,"family":"Blake","given":"M.","suffix":"Jr.","email":"","middleInitial":"Clark","affiliations":[],"preferred":false,"id":738176,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jayko, Angela S. 0000-0002-7378-0330 ajayko@usgs.gov","orcid":"https://orcid.org/0000-0002-7378-0330","contributorId":2531,"corporation":false,"usgs":true,"family":"Jayko","given":"Angela","email":"ajayko@usgs.gov","middleInitial":"S.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":738177,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70197689,"text":"70197689 - 1986 - Blueschist metamorphism of the Eastern Franciscan belt, northern California","interactions":[],"lastModifiedDate":"2018-06-18T10:28:28","indexId":"70197689","displayToPublicDate":"1986-12-31T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1726,"text":"GSA Memoirs","active":true,"publicationSubtype":{"id":10}},"seriesNumber":"164","title":"Blueschist metamorphism of the Eastern Franciscan belt, northern California","docAbstract":"<p>Rocks of the Eastern Franciscan belt, northern California, are divided into two tectonostratigraphic terranes metamorphosed to the blueschist facies, both with a distinct lithologic association and deformational history. The easternmost terrane, the Pickett Peak terrane of Early Cretaceous isotopic age, consists of crenulated mica schist and gneissic to schistose metagraywacke, with lesser alkalic mafic metaigneous rocks and scarce metachert. The Pickett Peak terrane retains evidence of three periods of penetrative deformation, the first of which is characterized by segregation layering, and the second and third by crenulation cleavages. Blueschist-facies conditions persisted during the first two deformations.</p><p>The Yolla Body terrane of Late Jurassic and Early Cretaceous paleontologic age lies structurally below and to the west of the Pickett Peak terrane. It is characterized by voluminous metagraywacke and lesser argillite, coherent interbedded radiolarian chert, and alkalic gabbroic dikes and sills. The Yolla Bolly terrane retains evidence for two phases of penetrative deformation that were coaxial with the second and third phases of deformation in the Pickett Peak terrane. The first phase of deformation (parallel to the second phase in the Pickett Peak terrane) was also accompanied by blueschist-facies metamorphism.</p>","language":"English","publisher":"American Geophysical Union","doi":"10.1130/MEM164-p107","usgsCitation":"Jayko, A.S., Blake, M., and Brothers, R., 1986, Blueschist metamorphism of the Eastern Franciscan belt, northern California: GSA Memoirs, p. 107-123, https://doi.org/10.1130/MEM164-p107.","productDescription":"16 p.","startPage":"107","endPage":"123","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":355111,"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        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -125.46386718749999,\n              37.47485808497102\n            ],\n            [\n              -119.35546875000001,\n              37.47485808497102\n            ],\n            [\n              -119.35546875000001,\n              41.86956082699455\n            ],\n            [\n              -125.46386718749999,\n              41.83682786072714\n            ],\n            [\n              -125.46386718749999,\n              37.47485808497102\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationDate":"1986-01-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Jayko, A. S. 0000-0002-7378-0330","orcid":"https://orcid.org/0000-0002-7378-0330","contributorId":18011,"corporation":false,"usgs":true,"family":"Jayko","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":738181,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blake, M.C. Jr.","contributorId":27094,"corporation":false,"usgs":true,"family":"Blake","given":"M.C.","suffix":"Jr.","affiliations":[],"preferred":false,"id":738182,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brothers, R.N.","contributorId":90866,"corporation":false,"usgs":true,"family":"Brothers","given":"R.N.","email":"","affiliations":[],"preferred":false,"id":738183,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70193877,"text":"70193877 - 1986 - Organochlorine chemical residues in bluegills and common carp from the irrigated San Joaquin Valley floor, California","interactions":[],"lastModifiedDate":"2018-09-25T11:55:19","indexId":"70193877","displayToPublicDate":"1986-12-31T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Organochlorine chemical residues in bluegills and common carp from the irrigated San Joaquin Valley floor, California","docAbstract":"<p><span>Samples of bluegills (</span><i class=\"EmphasisTypeItalic \">Lepomis macrochirus</i><span>) and common carp (</span><i class=\"EmphasisTypeItalic \">Cyprinus carpio</i><span>) collected from the San Joaquin River and two tributaries (Merced River and Salt Slough) in California were analyzed for 21 organochlorine chemical residues by gas chromatography to determine if pesticide contamination was confined to downstream sites exposed to irrigated agriculture, or if nonirrigated upstream sites were also contaminated. Residues of</span><i class=\"EmphasisTypeItalic \">p,p′</i><span>-DDE were detected in all samples of both species. Six other contaminants were also present in both species at one or more of the collection sites: chlordane (</span><i class=\"EmphasisTypeItalic \">cis</i><span>-chlordane +</span><i class=\"EmphasisTypeItalic \">trans</i><span>-nonachlor);</span><i class=\"EmphasisTypeItalic \">p,p′</i><span>-DDD;</span><i class=\"EmphasisTypeItalic \">o,p′</i><span>-DDT;</span><i class=\"EmphasisTypeItalic \">p,p′</i><span>-DDT; DCPA (dimethyl tetrachloroterephthalate); and dieldrin. Concentrations of most of these residues were generally higher in carp than in bluegills; residues of other compounds were found only in carp: α-BHC (α-benzenehexachloride), Aroclor</span><sup>®</sup><span><span>&nbsp;</span>1260, and toxaphene. Concentrations of most organochlorines in fish increased from upstream to downstream. Water quality variables that are influenced by irrigation return flows (</span><i class=\"EmphasisTypeItalic \">e.g.</i><span>, conductivity, turbidity, and total alkalinity) also increased from upstream to downstream and were significantly correlated (</span><i class=\"EmphasisTypeItalic \">P</i><span><span>&nbsp;</span>&lt; 0.05) with organochlorine residue levels in the fish. In carp, concentrations of two residues-⌆DDT (</span><i class=\"EmphasisTypeItalic \">p,p′</i><span>-DDD +</span><i class=\"EmphasisTypeItalic \">p,p′</i><span>-DDE + +</span><i class=\"EmphasisTypeItalic \">p,p′</i><span>-DDT; 1.43 to 2.21 mg/kg wet weight) and toxaphene (3.12 mg/kg wet weight)-approached the highest levels reported by the National Pesticide Monitoring Program for fish from other intensively farmed watersheds of the United States in 1980 to 1981, and surpassed criteria for whole-body residue concentrations recomended by the National Academy of Sciences and National Academy of Engineers for the protection of piscivorous wildlife.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/BF01066402","usgsCitation":"Saiki, M.K., and Schmitt, C.J., 1986, Organochlorine chemical residues in bluegills and common carp from the irrigated San Joaquin Valley floor, California: Archives of Environmental Contamination and Toxicology, v. 15, no. 4, p. 357-366, https://doi.org/10.1007/BF01066402.","productDescription":"10 p.","startPage":"357","endPage":"366","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":348349,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Joaquin Valley floor","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -121.95373535156249,\n              38.14751758025121\n            ],\n            [\n              -120.75622558593749,\n              36.47872381162464\n            ],\n            [\n              -119.0643310546875,\n              36.50963615733049\n            ],\n            [\n              -120.6683349609375,\n              38.14319750166766\n            ],\n            [\n              -121.95373535156249,\n              38.14751758025121\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"15","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a082899e4b09af898c8e662","contributors":{"authors":[{"text":"Saiki, Michael K.","contributorId":54671,"corporation":false,"usgs":true,"family":"Saiki","given":"Michael","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":720861,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schmitt, Christopher J. 0000-0001-6804-2360 cjschmitt@usgs.gov","orcid":"https://orcid.org/0000-0001-6804-2360","contributorId":491,"corporation":false,"usgs":true,"family":"Schmitt","given":"Christopher","email":"cjschmitt@usgs.gov","middleInitial":"J.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":720862,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70195036,"text":"70195036 - 1986 - Resource potential of the western North Atlantic Basin","interactions":[],"lastModifiedDate":"2018-02-05T15:15:14","indexId":"70195036","displayToPublicDate":"1986-12-31T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Resource potential of the western North Atlantic Basin","docAbstract":"<p>We here consider the petroleum resources only of the off shelf portion of the western North Atlantic Ocean. Very little information is available for this region; off the eastern United States, only four petroleum exploration holes have been drilled in one restricted area seaward of the shelf, off the Baltimore Canyon trough. However, by interpreting seismic reflection profiles and Stratigraphie data from the Deep Sea Drilling Project (DSDP) and other wells on the adjacent slope and shelf, we can evaluate the geologic conditions that existed during development of the basin and that might lead to petroleum accumulations.</p><p>The wellknown factors that lead to oil and gas accumulations are availability of source beds, adequate maturation, and the presence of reservoir beds and seals configured to create a trap. The western boundary of the area considered in this paper, the present sloperise break, is one that has developed from the interplay of sedimentation and erosion at the continental margin; these processes are affected by variations in margin subsidence, sedi-ment input, oceanic circulation, sea level, and other factors. Thus the sloperise break has migrated over time and is locally underlain by slope and shelf deposits, as well as deepbasin facies. These changes in depositional environments may well have caused juxtaposition of source and reservoir beds with effective seals.</p>","largerWorkTitle":"Geology of North America: The Western North Atlantic Region","language":"English","publisher":"GeoScienceWorld","doi":"10.1130/DNAG-GNA-M","usgsCitation":"Dillon, W.P., Manheim, F.T., Jansa, L., Palmason, G., Tucholke, B.E., and Landrum, R.S., 1986, Resource potential of the western North Atlantic Basin, chap. <i>of</i> Geology of North America: The Western North Atlantic Region, v. M, https://doi.org/10.1130/DNAG-GNA-M.","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":351021,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"M","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a797b98e4b00f54eb1f5e29","contributors":{"authors":[{"text":"Dillon, William P. bdillon@usgs.gov","contributorId":79820,"corporation":false,"usgs":true,"family":"Dillon","given":"William","email":"bdillon@usgs.gov","middleInitial":"P.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":726679,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Manheim, Frank T.","contributorId":26991,"corporation":false,"usgs":true,"family":"Manheim","given":"Frank","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":726680,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jansa, L.F.","contributorId":69073,"corporation":false,"usgs":true,"family":"Jansa","given":"L.F.","email":"","affiliations":[],"preferred":false,"id":726681,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Palmason, Gudmundur","contributorId":201644,"corporation":false,"usgs":false,"family":"Palmason","given":"Gudmundur","email":"","affiliations":[],"preferred":false,"id":726682,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tucholke, Brian E.","contributorId":96710,"corporation":false,"usgs":true,"family":"Tucholke","given":"Brian","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":726683,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Landrum, Richard S.","contributorId":201645,"corporation":false,"usgs":false,"family":"Landrum","given":"Richard","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":726684,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70197301,"text":"70197301 - 1986 - Morphology and age of fault scarps in the Rio Grande Rift, south-central Colorado","interactions":[],"lastModifiedDate":"2018-05-29T12:23:47","indexId":"70197301","displayToPublicDate":"1986-12-31T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"seriesNumber":"Special Publication 28","title":"Morphology and age of fault scarps in the Rio Grande Rift, south-central Colorado","docAbstract":"<p>Fault scarps in the Rio Grande rift of Colorado provide most of the evidence of paleoseismicity in the state, and are thus a major focus of assessments of earthquake hazards. Critical components of such assessments are the ages of past faulting events; age control is scarce and generally coarse for the Rio Grande rift in Colorado. Ages estimated from fault-scarp morphology are thus valuable, partly because they are directly related to the fault eVents, and partly for want of alternative methods. </p><p>The processes responsible for scarp degradation are poorly understood and the many variables that affect the rates and relative importance of those processes limits the precision and accuracy of age estimates derived from scarp morphology. Both analytical and empirical methods are available for relating scarp degradation processes to scarp morphology and age. Diffusion-equation models that have been derived for scarp degradation are useful for their predictive value and for the insight they provide about the degradation processes. However, because of the limitations mentioned above and because of the multiple-event nature of the scarps in the Rio Grande rift, the simpler empirical approach involving the relation between scarp angle and the logarithm of scarp height is used here. </p><p>The scarp-morphology data from the Rio Grande rift suggest that the youngest movements on all of the scarps examined occurred less than 15,000 years ago, with the exception of two scarps that are formed on lithologically dissimilar deposits. This age estimate is consistent with the observation that all of the scarps occur at least in part on deposits of Pinedale age. The scarp-morphology data suggest that some of the scarps are closer to 5,000 years than to 15,000 years in age; several of these scarps occur on deposits of early Holocene age and are associated with early Holocene radiocarbon dates. One scarp occurs on deposits with radiocarbon dates of only a few thousand years, although the morphology of this scarp is unusual for its age. Three scarps have morphologies that suggest that they may represent fault events younger than 5,000 years old. Although no corroboration is available, these scarps may represent some of the youngest fault movements in Colorado. </p>","largerWorkTitle":"Contributions to Colorado Seisrnicity and Tectonics: A 1986 Update","language":"English","publisher":"Colorado Geological Survey","publisherLocation":"Denver, CO","usgsCitation":"Colman, S.M., Rogers, W.P., and Kirkham, R., 1986, Morphology and age of fault scarps in the Rio Grande Rift, south-central Colorado, v. 28, 16 p.","productDescription":"16 p.","startPage":"43","endPage":"58","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":354521,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":354520,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://coloradogeologicalsurvey.org/wp-content/uploads/docs/Pubs/SP-28.pdf"}],"country":"United States","state":"Colorado","otherGeospatial":"Rio Grande rift","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -106,\n              37\n            ],\n            [\n              -104,\n              37\n            ],\n            [\n              -104,\n              39\n            ],\n            [\n              -106,\n              39\n            ],\n            [\n              -106,\n              37\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"28","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b15b4b6e4b092d9651e2363","contributors":{"editors":[{"text":"Rogers, William P.","contributorId":24220,"corporation":false,"usgs":true,"family":"Rogers","given":"William","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":736590,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Kirkham, Robert M.","contributorId":98817,"corporation":false,"usgs":true,"family":"Kirkham","given":"Robert","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":736591,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Colman, Steven M.","contributorId":6439,"corporation":false,"usgs":true,"family":"Colman","given":"Steven","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":736592,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rogers, William P.","contributorId":24220,"corporation":false,"usgs":true,"family":"Rogers","given":"William","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":736593,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kirkham, R. M.","contributorId":16915,"corporation":false,"usgs":false,"family":"Kirkham","given":"R. M.","affiliations":[],"preferred":false,"id":736594,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70197688,"text":"70197688 - 1986 - Significance of Klamath rocks between the Franciscan Complex and Coast Range ophiolite, northern California","interactions":[],"lastModifiedDate":"2018-06-18T10:21:49","indexId":"70197688","displayToPublicDate":"1986-12-31T00:00:00","publicationYear":"1986","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3524,"text":"Tectonics","active":true,"publicationSubtype":{"id":10}},"title":"Significance of Klamath rocks between the Franciscan Complex and Coast Range ophiolite, northern California","docAbstract":"<p><span>Small fault‐bounded slabs of low‐grade (prehnite‐pumpellyite‐bearing) slate, metagraywacke, and greenstone occur between the Coast Range ophiolite and South Fork Mountain Schist for at least 60 km south of the Klamath Mountains, northern California. The metagraywacke slabs differ from typical Franciscan Complex metagraywacke to the west by the absence of blueschist‐facies minerals and the abundance of quartz and chert clasts, and they differ from sandstone and mudstone of the Great Valley sequence to the east by the presence of a penetrative cleavage and low‐grade metamorphism. The metasedimentary rock in the slabs is petrographically identical to the Jurassic Galice Formation, which occurs along the western and southern margins of the Klamath Mountains. Upward drag along a west dipping reverse fault best explains the present structural position of the slabs and is consistent with available geological and geophysical data. These data imply that the Coast Range ophiolite structurally overlies Sierran‐Klamath basement at least locally.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/TC005i007p01055","usgsCitation":"Jayko, A.S., Blake, and Brothers, R., 1986, Significance of Klamath rocks between the Franciscan Complex and Coast Range ophiolite, northern California: Tectonics, v. 5, p. 1055-1071, https://doi.org/10.1029/TC005i007p01055.","productDescription":"17 p.","startPage":"1055","endPage":"1071","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":355110,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon, Washington","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -125.46386718749999,\n              37.47485808497102\n            ],\n            [\n              -119.35546875000001,\n              37.47485808497102\n            ],\n            [\n              -119.35546875000001,\n              45.182036837015886\n            ],\n            [\n              -125.46386718749999,\n              45.182036837015886\n            ],\n            [\n              -125.46386718749999,\n              37.47485808497102\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"5","noUsgsAuthors":false,"publicationDate":"2010-07-26","publicationStatus":"PW","contributors":{"authors":[{"text":"Jayko, A. S. 0000-0002-7378-0330","orcid":"https://orcid.org/0000-0002-7378-0330","contributorId":18011,"corporation":false,"usgs":true,"family":"Jayko","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":738178,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blake","contributorId":146895,"corporation":false,"usgs":true,"family":"Blake","email":"","affiliations":[],"preferred":false,"id":738179,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brothers, R.N.","contributorId":90866,"corporation":false,"usgs":true,"family":"Brothers","given":"R.N.","email":"","affiliations":[],"preferred":false,"id":738180,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}