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,{"id":70013872,"text":"70013872 - 1984 - Simulation of ground-water flow in a mined watershed in eastern Ohio","interactions":[],"lastModifiedDate":"2024-03-21T11:17:32.695458","indexId":"70013872","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Simulation of ground-water flow in a mined watershed in eastern Ohio","docAbstract":"<div class=\"abstract-group \"><div class=\"article-section__content en main\"><p>A 43-acre watershed in Muskingum County, Ohio, was studied to determine the hydrologic consequences of strip mining for coal. A quantitative description of the effects on the ground-water flow components of the hydrologic system has been obtained using digital models.</p><p>The premining watershed was characterized by nearly flat-lying sedimentary rocks of the Pennsylvanian System. Underclay beneath the two major coal beds formed bases for perched zones, creating three separate aquifers. Recharge to the ground-water system occurred mainly by percolation of precipitation. Most of the discharge from the top and middle aquifers occurred by downward leakage to the underlying aquifers. A smaller amount of discharge occurred as springflow or streamflow near the intersections of the underclays and land surface.</p><p>Mining has destroyed the top aquifer, and has replaced the bedrock by spoil material. Water levels in the spoils are at a much lower altitude than existed in the premining top aquifer because of a combination of (1) a larger hydraulic conductivity, (2) areal variations of the hydraulic characteristics of the confining bed, and (3) a slower rate of recharge from precipitation caused by removal of vegetation and soil compaction. Covering of previously exposed portions of the middle aquifer and a lower hydraulic head in the spoils has allowed less recharge to the middle aquifer. Additional flow is induced across the western boundary of the watershed and has reduced the outflow across the eastern boundary. Discharge from the middle aquifer as downward leakage and streamflow is less than before mining.</p></div></div>","language":"English","publisher":"National Groundwater Association","doi":"10.1111/j.1745-6584.1984.tb01424.x","usgsCitation":"Weiss, J.S., and Razem, A., 1984, Simulation of ground-water flow in a mined watershed in eastern Ohio: Groundwater, v. 22, no. 5, p. 549-560, https://doi.org/10.1111/j.1745-6584.1984.tb01424.x.","productDescription":"12 p.","startPage":"549","endPage":"560","numberOfPages":"12","costCenters":[],"links":[{"id":220064,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"5","noUsgsAuthors":false,"publicationDate":"2006-03-21","publicationStatus":"PW","scienceBaseUri":"505b903be4b08c986b3193ca","contributors":{"authors":[{"text":"Weiss, J. S.","contributorId":63414,"corporation":false,"usgs":true,"family":"Weiss","given":"J.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":367056,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Razem, A. C.","contributorId":34924,"corporation":false,"usgs":true,"family":"Razem","given":"A. C.","affiliations":[],"preferred":false,"id":367055,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013869,"text":"70013869 - 1984 - Paleogene geology and chronology of southwestern Umnak Island, Aleutian Islands, Alaska","interactions":[],"lastModifiedDate":"2023-09-25T19:03:27.398425","indexId":"70013869","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1168,"text":"Canadian Journal of Earth Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Paleogene geology and chronology of southwestern Umnak Island, Aleutian Islands, Alaska","docAbstract":"<p><span>The rocks of southwestern Umnak Island (Nikolski area) consist mainly of a slightly deformed marine sedimentary sequence intruded by hypabyssal quartz diorite sills and small plutons. Laminated and thin-bedded argillaceous and tuffaceous mudstone and siltstone reflect volcanic arc sedimentation from late Eocene to early Oligocene time. Zeolite facies minerals formed during diagenesis include heulandite, analcime, quartz, chlorite, and smectite. Radiometric dates from sill rock and plutons yield apparent ages of about 30 Ma, i.e, middle Oligocene. Chemical data from igneous rocks exhibit calc-alkaline and tholeiitic volcanic arc differentiation trends. Dikes of pyroxene basalt yield K/Ar apparent ages as old at 17 Ma, and a columnar-jointed plug of pyroxene basalt is as young as 1 Ma. The fossil ages and radiometric dates from southwestern Umnak Island are similar to those reported from other central and eastern Aleutian islands, and indicate uniformity in the chronology and tectonic development of the archipelago during the Paleogene. Paleomagnetic data suggest possible northward movement but remain equivocal and more work is indicated.</span></p>","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/e84-018","issn":"00084077","usgsCitation":"McLean, H., and Hein, J., 1984, Paleogene geology and chronology of southwestern Umnak Island, Aleutian Islands, Alaska: Canadian Journal of Earth Sciences, v. 21, no. 2, p. 171-180, https://doi.org/10.1139/e84-018.","productDescription":"10 p.","startPage":"171","endPage":"180","costCenters":[],"links":[{"id":220061,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Aleutian Islands, Umnak Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              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0000-0002-5321-899X","orcid":"https://orcid.org/0000-0002-5321-899X","contributorId":61429,"corporation":false,"usgs":true,"family":"Hein","given":"J.R.","affiliations":[],"preferred":false,"id":367050,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013864,"text":"70013864 - 1984 - ASSESSMENT OF HIGH-TEMPERATURE GEOTHERMAL RESOURCES IN HYDROTHERMAL CONVECTION SYSTEMS IN THE UNITED STATES.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:39","indexId":"70013864","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"ASSESSMENT OF HIGH-TEMPERATURE GEOTHERMAL RESOURCES IN HYDROTHERMAL CONVECTION SYSTEMS IN THE UNITED STATES.","docAbstract":"The amount of thermal energy in high-temperature geothermal systems (>150 degree C) in the United States has been calculated by estimating the temperature, area, and thickness of each identified system. These data, along with a general model for recoverability of geothermal energy and a calculation that takes account of the conversion of thermal energy to electricity, yield a resource estimate of 23,000 MWe for 30 years. The undiscovered component was estimated based on multipliers of the identified resource as either 72,000 or 127,000 MWe for 30 years depending on the model chosen for the distribution of undiscovered energy as a function of temperature.","largerWorkTitle":"Proceedings of the Intersociety Energy Conversion Engineering Conference","conferenceTitle":"19th Intersociety Energy Conversion Engineering Conference: Advanced Energy Systems - Their Role in Our Future.","conferenceLocation":"San Francisco, CA, USA","publisher":"ANS","publisherLocation":"LaGrange Park, IL, USA","issn":"0146955X","isbn":"0894481150","usgsCitation":"Nathenson, M., 1984, ASSESSMENT OF HIGH-TEMPERATURE GEOTHERMAL RESOURCES IN HYDROTHERMAL CONVECTION SYSTEMS IN THE UNITED STATES., <i>in</i> Proceedings of the Intersociety Energy Conversion Engineering Conference, San Francisco, CA, USA, p. 1295-1299.","startPage":"1295","endPage":"1299","numberOfPages":"5","costCenters":[],"links":[{"id":220017,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e637e4b0c8380cd47263","contributors":{"authors":[{"text":"Nathenson, Manuel 0000-0002-5216-984X mnathnsn@usgs.gov","orcid":"https://orcid.org/0000-0002-5216-984X","contributorId":1358,"corporation":false,"usgs":true,"family":"Nathenson","given":"Manuel","email":"mnathnsn@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":367039,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013850,"text":"70013850 - 1984 - Coalification of organic matter in coal balls of the Pennsylvanian (upper Carboniferous) of the Illinois Basin, United States","interactions":[],"lastModifiedDate":"2025-03-17T16:27:20.585064","indexId":"70013850","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Coalification of organic matter in coal balls of the Pennsylvanian (upper Carboniferous) of the Illinois Basin, United States","docAbstract":"<p><span>An evaluation was made of the degree of coalification of two coal balls from the Illinois Basin of the Pennsylvanian (upper Carboniferous) of the United States. Previous interpretations are mainly misleading and contradictory, primarily because of the assumption that the brown color and exceptional cellular and subcellular preservation typical of American coal balls imply chemical preservation of cellulose and lignin, the primary components of peat. Xylem tissue from a medullosan seed fern contained in a coal ball and the coal attached to the coal ball from the Calhoun coal bed, Mattoon Formation, Illinois, was analyzed by elemental, petrographic, and nuclear magnetic resonance (NMR) techniques to determine the degree of coalification. The NMR and elemental data indicate the lack of cellulose and lignin and a probable rank of high-volatile C bituminous coal. These data corroborate data for a coal ball from the Herrin (No. 6) coal bed (Carbondale Formation, Middle Pennsylvanian) and support our hypothesis that the organic matter in coal balls of the Pennsylvanian strata of the United States is coalified to about the same degree as the surrounding coal. Data presented show a range of lower reflectances for xylem tissue and vitrinite in the analyzed coal balls compared with vitrinite in the attached coal.</span></p><p><span>The data reported indicate that physical preservation of organic matter in coal balls does not imply chemical preservation. Also our study supports the hypothesis that compactional (static load) pressure is not a prerequisite for coalification up to a rank of high-volatile C bituminous coal.</span></p><p><span>A whole-rock analysis of the Calhoun coal ball indicates a similarity to other carbonate coal balls from the United States. It consists primarily of calcium carbonate and 1–2% organic matter; silica and alumina together make up less than 0.5%, indicating the lack of minerals such as quartz and clays.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0146-6380(84)90010-X","usgsCitation":"Lyons, P., Thompson, C.L., Hatcher, P.G., Brown, F.W., Millay, M., Szeverenyi, N., and Maciel, G., 1984, Coalification of organic matter in coal balls of the Pennsylvanian (upper Carboniferous) of the Illinois Basin, United States: Organic Geochemistry, v. 5, no. 4, p. 227-239, https://doi.org/10.1016/0146-6380(84)90010-X.","productDescription":"13 p.","startPage":"227","endPage":"239","costCenters":[],"links":[{"id":220076,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Illinois, Indiana, Kentucky","otherGeospatial":"Illinois 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,{"id":70013521,"text":"70013521 - 1984 - A review of progress in understanding the fluid geochemistry of the Cerro Prieto geothermal system","interactions":[],"lastModifiedDate":"2013-02-24T14:12:13","indexId":"70013521","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1828,"text":"Geothermics","active":true,"publicationSubtype":{"id":10}},"title":"A review of progress in understanding the fluid geochemistry of the Cerro Prieto geothermal system","docAbstract":"Fluid geochemistry has played a major role in our present understanding of the Cerro Prieto geothermal system. Fluid chemical and isotopic compositions have been used to indicate the origin of water, salts and gases, original subsurface temperature and fluid flow, fluid-production mechanisms, and production-induced aquifer boiling and cold-water entry. The extensive geochemical data and interpretations for Cerro Prieto published from 1964 to 1981 are reviewed and discussed. Fluid geochemistry must continue to play an important role in the further development of the Cerro Prieto field. ?? 1984.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geothermics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0375-6505(84)90007-5","issn":"03756505","usgsCitation":"Truesdell, A., Nehring, N., Thompson, J., Janik, C.J., and Coplen, T., 1984, A review of progress in understanding the fluid geochemistry of the Cerro Prieto geothermal system: Geothermics, v. 13, no. 1-2, p. 65-74, https://doi.org/10.1016/0375-6505(84)90007-5.","startPage":"65","endPage":"74","numberOfPages":"10","costCenters":[],"links":[{"id":480211,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.osti.gov/biblio/7369514","text":"External Repository"},{"id":268151,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0375-6505(84)90007-5"},{"id":220652,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e555e4b0c8380cd46cc1","contributors":{"authors":[{"text":"Truesdell, A.H.","contributorId":52566,"corporation":false,"usgs":false,"family":"Truesdell","given":"A.H.","email":"","affiliations":[{"id":6672,"text":"former: USGS Southwest Biological Science Center, Colorado Plateau Research Station, Flagstaff, AZ. Current address:  TN-SCORE, Univ of Tennessee, Knoxville, TN, e-mail: jennen@gmail.com","active":true,"usgs":false}],"preferred":false,"id":366255,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nehring, N.L.","contributorId":21157,"corporation":false,"usgs":true,"family":"Nehring","given":"N.L.","email":"","affiliations":[],"preferred":false,"id":366253,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thompson, J. M.","contributorId":77142,"corporation":false,"usgs":true,"family":"Thompson","given":"J. M.","affiliations":[],"preferred":false,"id":366256,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Janik, C. J.","contributorId":10795,"corporation":false,"usgs":true,"family":"Janik","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":366252,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Coplen, T.B.","contributorId":34147,"corporation":false,"usgs":true,"family":"Coplen","given":"T.B.","affiliations":[],"preferred":false,"id":366254,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70013321,"text":"70013321 - 1984 - Flameless atomic absorption determination of platinum, palladium, and rhodium in geologic materials","interactions":[],"lastModifiedDate":"2023-11-17T12:03:17.326006","indexId":"70013321","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1821,"text":"Geostandards Newsletter","active":true,"publicationSubtype":{"id":10}},"title":"Flameless atomic absorption determination of platinum, palladium, and rhodium in geologic materials","docAbstract":"<p><span>Platinum, palladium and rhodium have been determined in 18 U.S. Geological Survey reference materials by graphite furnace atomic absorption spectrometry after preconcentration by the classical leadfree assay technique. A comparison with literature values shows clearly the need for additional data on these samples before “best” values can be assigned.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1751-908X.1984.tb00402.x","usgsCitation":"Aruscavage, P., Simon, F., and Moore, R., 1984, Flameless atomic absorption determination of platinum, palladium, and rhodium in geologic materials: Geostandards Newsletter, v. 8, no. 1, p. 3-6, https://doi.org/10.1111/j.1751-908X.1984.tb00402.x.","productDescription":"4 p.","startPage":"3","endPage":"6","numberOfPages":"4","costCenters":[],"links":[{"id":220530,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"1","noUsgsAuthors":false,"publicationDate":"2007-05-31","publicationStatus":"PW","scienceBaseUri":"505a10cee4b0c8380cd53df7","contributors":{"authors":[{"text":"Aruscavage, Philip","contributorId":146853,"corporation":false,"usgs":true,"family":"Aruscavage","given":"Philip","email":"","affiliations":[],"preferred":false,"id":365811,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Simon, F.O.","contributorId":41808,"corporation":false,"usgs":true,"family":"Simon","given":"F.O.","email":"","affiliations":[],"preferred":false,"id":365812,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moore, R.","contributorId":50184,"corporation":false,"usgs":true,"family":"Moore","given":"R.","affiliations":[],"preferred":false,"id":365813,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013163,"text":"70013163 - 1984 - The continental slope off New England: A long-range sidescan-sonar perspective","interactions":[],"lastModifiedDate":"2018-01-30T19:15:43","indexId":"70013163","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1742,"text":"Geo-Marine Letters","active":true,"publicationSubtype":{"id":10}},"title":"The continental slope off New England: A long-range sidescan-sonar perspective","docAbstract":"<p>The first continuous overview of a large segment of the continental slope and rise off the northeastern United States has been obtained using the GLORIA II long-range sidescan-sonar system. Extensive dissection by canyon and gully systems and evidence of possible large-scale sediment sliding are seen on the slope. The style and degree of incision, as well as the numbers and locations of canyons, have been found to differ significantly from previously published maps. It is suggested that the slope is a significant source of the sediment that has been deposited on the rise, and that some abrupt changes in the courses of canyons may be the result of local structural control.</p>","language":"English","publisher":"Springer","doi":"10.1007/BF02237966","usgsCitation":"Scanlon, K.M., 1984, The continental slope off New England: A long-range sidescan-sonar perspective: Geo-Marine Letters, v. 4, no. 1, p. 1-4, https://doi.org/10.1007/BF02237966.","productDescription":"4 p.","startPage":"1","endPage":"4","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":220182,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Georges Bank","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -72.09228515625,\n              38.08268954483802\n            ],\n            [\n              -64.16015624999999,\n              38.08268954483802\n            ],\n            [\n              -64.16015624999999,\n              42.84375132629021\n            ],\n            [\n              -72.09228515625,\n              42.84375132629021\n            ],\n            [\n              -72.09228515625,\n              38.08268954483802\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"4","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baa5ae4b08c986b3227e6","contributors":{"authors":[{"text":"Scanlon, Kathryn M.","contributorId":6816,"corporation":false,"usgs":true,"family":"Scanlon","given":"Kathryn","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":365443,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013164,"text":"70013164 - 1984 - Distribution of trace elements in coal from the Powhatan No. 6 mine, Ohio","interactions":[],"lastModifiedDate":"2023-10-02T16:44:08.44206","indexId":"70013164","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1709,"text":"Fuel","active":true,"publicationSubtype":{"id":10}},"title":"Distribution of trace elements in coal from the Powhatan No. 6 mine, Ohio","docAbstract":"<p><span>Size and density separates of low-temperature-ashed coal from the Powhatan No. 6 mine, Ohio, have been used to determine the mode of occurrence of 28 minor and trace elements in coal. The size distribution of the major minerals has been determined, and correlations of trace elements with major minerals have been made. The role of minor minerals in the mode of occurrence of trace elements is also discussed. Instrumental-neutron-activation analysis was used to determine elemental concentrations, and X-ray diffraction and scanning electron microscopy were used for mineral identification.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-2361(84)90007-3","issn":"00162361","usgsCitation":"Palmer, C., and Filby, R., 1984, Distribution of trace elements in coal from the Powhatan No. 6 mine, Ohio: Fuel, v. 63, no. 3, p. 318-328, https://doi.org/10.1016/0016-2361(84)90007-3.","productDescription":"11 p.","startPage":"318","endPage":"328","costCenters":[],"links":[{"id":220183,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Ohio","otherGeospatial":"Powhatan No. 6 Mine","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -80.97002633381553,\n              39.899285314443205\n            ],\n            [\n              -80.97002633381553,\n              39.898444085762804\n            ],\n            [\n              -80.96803387008336,\n              39.898444085762804\n            ],\n            [\n              -80.96803387008336,\n              39.899285314443205\n            ],\n            [\n              -80.97002633381553,\n              39.899285314443205\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"63","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a030ce4b0c8380cd50301","contributors":{"authors":[{"text":"Palmer, C.A.","contributorId":81894,"corporation":false,"usgs":true,"family":"Palmer","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":365445,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Filby, R.H.","contributorId":26071,"corporation":false,"usgs":true,"family":"Filby","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":365444,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013615,"text":"70013615 - 1984 - Re-collection of Fish Canyon Tuff for fission-track standardization","interactions":[],"lastModifiedDate":"2013-03-06T20:13:23","indexId":"70013615","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2913,"text":"Nuclear Tracks and Radiation Measurements (1982)","active":true,"publicationSubtype":{"id":10}},"title":"Re-collection of Fish Canyon Tuff for fission-track standardization","docAbstract":"The PURPOSE of this note is to announce the availability of apatite and zircon from a third collection of the Oligocene Fish Canyon Tuff (FC-3). Apatite and zircon separated from the Fish Canyon Tuff have prove to be a useful standard for fission-track dating, both for interlaboratory comparisons and for checking procedures within a laboratory. In May 1981, about 540 kg of Fish Canyon Tuff were collected for mineral separation. Approximately 7. 5 g of apatite, 6. 5 g of zircon, and 89 g of sphene were recovered from this collection. This new material is now ready for distribution.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nuclear Tracks and Radiation Measurements (1982)","largerWorkSubtype":{"id":10,"text":"Journal Article"},"conferenceTitle":"Fourth Fission-Track Dating Workshop","conferenceLocation":"Troy, NY, USA","language":"English","doi":"10.1016/0735-245X(85)90128-0","issn":"0191278X","usgsCitation":"Naeser, C.W., and Cebula, G., 1984, Re-collection of Fish Canyon Tuff for fission-track standardization: Nuclear Tracks and Radiation Measurements (1982), v. 10, no. 3, https://doi.org/10.1016/0735-245X(85)90128-0.","startPage":"393","costCenters":[],"links":[{"id":268867,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0735-245X(85)90128-0"},{"id":220105,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a932ee4b0c8380cd80c57","contributors":{"authors":[{"text":"Naeser, C. W.","contributorId":17582,"corporation":false,"usgs":true,"family":"Naeser","given":"C.","middleInitial":"W.","affiliations":[],"preferred":false,"id":366487,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cebula, G. T.","contributorId":11603,"corporation":false,"usgs":true,"family":"Cebula","given":"G. T.","affiliations":[],"preferred":false,"id":366486,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013278,"text":"70013278 - 1984 - Calculations of seabird population recovery from potential oilspills in the mid-Atlantic region of the United States","interactions":[],"lastModifiedDate":"2023-09-29T16:50:52.832258","indexId":"70013278","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1458,"text":"Ecological Modelling","active":true,"publicationSubtype":{"id":10}},"title":"Calculations of seabird population recovery from potential oilspills in the mid-Atlantic region of the United States","docAbstract":"<p><span>Calculations were made of herring gull and common tern population recovery from potential oilspill damage in the U.S. mid-Atlantic Outer Continental Shelf (OCS) oil leasing area. Population recovery was examined using a density-dependent age-specific life history table for each species. Both a deterministic and a stochastic approach were used in the calculations. In the deterministic approach, it was assumed that an oilspill contact to a seabird colony had occurred. Using the density-dependent model, population recovery was calculated for several different mortality scenarios. Assuming that all age classes suffer 95% mortality from an oilspill contact, a worst case scenario, it was estimated that the herring gull and common tern populations could recover to their pre-spill levels in approximately 45 years and more than 100 years, respectively. In the stochastic approach, the probabilities of oilspill contacts to these seabird colonies were calculated using an oilspill trajectory analysis model. Oilspill contacts to these colonies were simulated during the expected 30 year active life of the lease area. For each lease lifetime, the number of oilspill contacts to a seabird colony was sampled from a Poisson distribution and assigned randomly on a seasonal basis. This analysis indicated that the oilspill risks from the development of proposed lease tracts in the mid-Atlantic region pose minimal risk (3–5%) of severe population reduction for both herring gulls and common terns. If the oilspill risks from tanker transportation of crude oil imports are included along with the proposed lease tracts, then the risks of severe population reduction are increased to approximately 10% for herring gulls and 18% for common terns.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/0304-3800(84)90025-5","usgsCitation":"Samuels, W., and Ladino, A., 1984, Calculations of seabird population recovery from potential oilspills in the mid-Atlantic region of the United States: Ecological Modelling, v. 21, no. 1, p. 63-84, https://doi.org/10.1016/0304-3800(84)90025-5.","productDescription":"22 p.","startPage":"63","endPage":"84","numberOfPages":"22","costCenters":[],"links":[{"id":219970,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Mid-Atlantic region","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -75.78218772294734,\n              41.41847066117498\n            ],\n            [\n              -76.9461477045258,\n              34.39258601480289\n            ],\n            [\n              -71.60300062228816,\n              34.993219485756725\n            ],\n            [\n              -71.60300062228816,\n              41.41847066117498\n            ],\n            [\n              -75.78218772294734,\n              41.41847066117498\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"21","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f307e4b0c8380cd4b56f","contributors":{"authors":[{"text":"Samuels, William B.","contributorId":13238,"corporation":false,"usgs":true,"family":"Samuels","given":"William B.","affiliations":[],"preferred":false,"id":365709,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ladino, A.","contributorId":6186,"corporation":false,"usgs":true,"family":"Ladino","given":"A.","email":"","affiliations":[],"preferred":false,"id":365708,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013170,"text":"70013170 - 1984 - Subsurface injection of treated sewage into a saline-water aquifer at St. Petersburg, Florida - Water-quality changes and potential for recovery of injected sewage","interactions":[],"lastModifiedDate":"2020-01-20T19:24:04","indexId":"70013170","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Subsurface injection of treated sewage into a saline-water aquifer at St. Petersburg, Florida - Water-quality changes and potential for recovery of injected sewage","docAbstract":"The city of St. Petersburg is testing subsurface injection of treated sewage into the Floridan aquifer as a means of eliminating discharge of sewage to surface waters and as a means of storing treated sewage for future nonpotable reuse. The injection zone at the test site at the start of injection contained saline water with chloride concentrations ranging from 14,000 to 20,000 milligrams per liter (mg/l). Treated sewage with a mean chloride concentration of 170 mg/ml was injected through a single well for 12 months at a mean rate of 4.7 x 105 cubic feet per day. The volume of water injected during the year was 1.7x108 cubic feet. Dissolved oxygen was contained in the sewage prior to injection. Water removed from the injection zone during injection was essentially free of oxygen. Probable growth of denitrifying bacteria and, thus, microbial denitrification, was suggested by bacterial counts in water from two observation wells that were close to the injection well. The volume fraction of treated sewage in water from wells located 35 feet and 733 feet from the injection well and open to the upper part of the injection zone stabilized at about 0.9 and 0.75, respectively. Chloride concentrations stabilized at about 1,900 mg/l in water from the well that was 35 feet from the injection well and stabilized at about 4,000 mg/l in water from the well that was 733 feet from the injection well. These and other data suggest that very little near injection-quality treated sewage would be recoverable from storage in the injection zone.The city of St. Petersburg is testing subsurface injection of treated sewage into the Floridan aquifer as a means of eliminating discharge of sewage to surface waters and as a means of storing treated sewage for future nonpotable reuse. The injection zone at the test site at the start of injection contained saline water with chloride concentrations ranging from 14,000 to 20,000 milligrams per liter (mg/l). Data suggest that very little near injection-quality treated sewage would be recoverable from storage in the injection zone.","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.1984.tb01409.x","issn":"0017467X","usgsCitation":"Hickey, J., and Ehrlich, G.G., 1984, Subsurface injection of treated sewage into a saline-water aquifer at St. Petersburg, Florida - Water-quality changes and potential for recovery of injected sewage: Ground Water, v. 22, no. 4, p. 397-405, https://doi.org/10.1111/j.1745-6584.1984.tb01409.x.","productDescription":"9 p.","startPage":"397","endPage":"405","numberOfPages":"9","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":220353,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","city":"St. Petersburg","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -82.880859375,\n              27.444915505146934\n            ],\n            [\n              -82.254638671875,\n              27.444915505146934\n            ],\n            [\n              -82.254638671875,\n              28.057438520876673\n            ],\n            [\n              -82.880859375,\n              28.057438520876673\n            ],\n            [\n              -82.880859375,\n              27.444915505146934\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"22","issue":"4","noUsgsAuthors":false,"publicationDate":"2006-03-21","publicationStatus":"PW","scienceBaseUri":"505b9d7be4b08c986b31d89b","contributors":{"authors":[{"text":"Hickey, J.J.","contributorId":57010,"corporation":false,"usgs":true,"family":"Hickey","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":365460,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ehrlich, G. G.","contributorId":89126,"corporation":false,"usgs":true,"family":"Ehrlich","given":"G.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":365461,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013611,"text":"70013611 - 1984 - Triple junction magmatism: a geochemical study of Neogene volcanic rocks in western California","interactions":[],"lastModifiedDate":"2023-12-10T21:58:15.757576","indexId":"70013611","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Triple junction magmatism: a geochemical study of Neogene volcanic rocks in western California","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-serif text-s\"><div id=\"ab1\" class=\"abstract author\" lang=\"en\"><div id=\"aep-abstract-sec-id4\"><p>Inception of volcanism at late Oligocene to Recent centers in the eastern Coast Ranges of California (ECR suite) regularly decreases in age northward and is correlated with the northward migration of the transform-transform-trench Mendocino triple junction (MTJ). Miocene volcanism in the southern California basin (SCB suite) is spatially and temporally associated with the transform-ridge-trench Rivera triple junction (RTJ). The tholeiitic to calc-alkaline rocks in both suites were erupted through older trench melange while arc magmatism was occurring several hundred kilometers to the east. Therefore they are not related to subduction zone magmatism, but instead to interactions of the MTJ and RTJ with the continental margin.</p><p>The ECR rocks, dominantly intermediate to silicic in composition, have relatively high<span>&nbsp;</span><i>δ<sup>18</sup>O</i><span>&nbsp;</span>values up to 11.3,<span>&nbsp;</span><i><sup>87</sup>Sr/<sup>86</sup>Sr</i><span>&nbsp;</span>ratios up to 0.7055, as well as relatively high Th contents, suggesting that crustal anatexis played a dominant role in their generation. Coupled crystal fractionation and crustal assimilation by an initially basaltic magma cannot explain the high<span>&nbsp;</span><i>δ<sup>18</sup>O</i><span>&nbsp;</span>values and<span>&nbsp;</span><i><sup>87</sup>Sr/<sup>86</sup>Sr</i><span>&nbsp;</span>ratios because greater than 95% of the basalt would need to crystallize. In contrast, the SCB rocks, dominantly mafic to intermediate in composition, have relatively low<span>&nbsp;</span><i>δ<sup>18</sup>O</i><span>&nbsp;</span>values down to 5.2 and<span>&nbsp;</span><i><sup>87</sup>Sr/<sup>86</sup>Sr</i><span>&nbsp;</span>ratios down to 0.7025 suggesting that these rocks were derived dominantly from a mantle source.</p><p>Whether crustal anatexis occurs is determined largely by the type of stress a triple junction imposes upon the continental margin. Both the MTJ and RTJ are associated with high heat flow and magma fluxes from the mantle. The transform-transform-trench MTJ is associated with locally variable mild extension to compression and therefore allows pooling of basaltic magma in the crust to initiate crustal melting. The high rates of continental extension associated with the transform-ridge-trench RTJ prevents such pooling of magma.</p><p>The space created by decoupling of the subducted slab at a transform-transform-trench triple junction might promote passive upwelling of mantle material to fill it and induce melting to generate basalts. Mafic volcanic rocks of this origin may provide a unique view of the subcontinental mantle at the continental margin.<span>&nbsp;</span><i><sup>87</sup>Sr/<sup>86</sup>Sr</i><span>&nbsp;</span>ratios as low as 0.70255 for mafic volcanic rocks in the Sonoma-Tolay center associated with the MTJ contrast with high<span>&nbsp;</span><i>La/Sm</i><span>&nbsp;</span>ratios of 1.1 to 1.3 and low<span>&nbsp;</span><i>Zr/Nb,Hf/Ta,La/Th</i>, and<span>&nbsp;</span><i>La/Ta</i><span>&nbsp;</span>ratios of 5.0 to 6.7, 2.6 to 3.5, 4.7 to 8.8, and 10.2 to 12.5, respectively. These data suggest that the mantle beneath parts of western California may have originally been depleted but has been enriched relatively recently. Such enrichment might have occurred by metasomatic processes associated with crustal accretion and/or juxtaposition of differing lithospheric mantle in the Mesozoic and Cenozoic.</p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0012-821X(84)90090-6","issn":"0012821X","usgsCitation":"Johnson, C., and O’Neil, J.R., 1984, Triple junction magmatism: a geochemical study of Neogene volcanic rocks in western California: Earth and Planetary Science Letters, v. 71, no. 2, p. 241-262, https://doi.org/10.1016/0012-821X(84)90090-6.","productDescription":"22 p.","startPage":"241","endPage":"262","numberOfPages":"22","costCenters":[],"links":[{"id":219991,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb864e4b08c986b32783d","contributors":{"authors":[{"text":"Johnson, C.M.","contributorId":78707,"corporation":false,"usgs":true,"family":"Johnson","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":366479,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Neil, J. R.","contributorId":69633,"corporation":false,"usgs":true,"family":"O’Neil","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":366478,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013452,"text":"70013452 - 1984 - Amino acid epimerization implies rapid sedimentation rates in Arctic Ocean cores","interactions":[],"lastModifiedDate":"2012-03-12T17:18:36","indexId":"70013452","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Amino acid epimerization implies rapid sedimentation rates in Arctic Ocean cores","docAbstract":"The palaeooceanography of the Arctic Ocean is less well known than any other ocean basin, due to difficulties in obtaining cores and in providing a secure chronological framework for those cores that have been raised. Most recent investigators have suggested that low sedimentation rates (0.05-0.1 cm kyr-1) have characterized the deep basins over the past 5 Myr (refs 1,2) despite the glacial-marine character of the sediment and proximity to major centres of shelf glaciation. These calculations have been primarily based on the down-core pattern in the inclination of magnetic minerals, supported by uranium-series, 14C and micropalaeontological evidence. Here we analyse amino acid diagnesis in foraminifera from two gravity cores raised from the floor of the Arctic Ocean, our results suggest that these cores span <200 kyr., conflicting with the earlier estimate of 3 Myr based on palaeomagnetic data. The chronology of other Arctic Ocean cores and previous palaeoenvironmental interpretations need re-evaluation. ?? 1984 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/310772a0","issn":"00280836","usgsCitation":"Sejrup, H., Miller, G.H., Brigham-Grette, J., Lovlie, R., and Hopkins, D., 1984, Amino acid epimerization implies rapid sedimentation rates in Arctic Ocean cores: Nature, v. 310, no. 5980, p. 772-775, https://doi.org/10.1038/310772a0.","startPage":"772","endPage":"775","numberOfPages":"4","costCenters":[],"links":[{"id":204989,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/310772a0"},{"id":219918,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"310","issue":"5980","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e9b9e4b0c8380cd483ee","contributors":{"authors":[{"text":"Sejrup, H.P.","contributorId":16569,"corporation":false,"usgs":true,"family":"Sejrup","given":"H.P.","email":"","affiliations":[],"preferred":false,"id":366095,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, G. H.","contributorId":54732,"corporation":false,"usgs":false,"family":"Miller","given":"G.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":366097,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brigham-Grette, J.","contributorId":78869,"corporation":false,"usgs":true,"family":"Brigham-Grette","given":"J.","affiliations":[],"preferred":false,"id":366098,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lovlie, R.","contributorId":37473,"corporation":false,"usgs":true,"family":"Lovlie","given":"R.","email":"","affiliations":[],"preferred":false,"id":366096,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hopkins, D.","contributorId":84899,"corporation":false,"usgs":true,"family":"Hopkins","given":"D.","email":"","affiliations":[],"preferred":false,"id":366099,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70013610,"text":"70013610 - 1984 - Drowned reefs as indicators of the rate of subsidence of the Island of Hawaii","interactions":[],"lastModifiedDate":"2024-04-26T16:45:06.278714","indexId":"70013610","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"Drowned reefs as indicators of the rate of subsidence of the Island of Hawaii","docAbstract":"<p><span>A major submerged terrace whose seaward edge is at about 150 m depth was investigated in 1983 during 10 dives with the Hawaii Undersea Research Laboratory (HURL) submersible Makali'i off Kealakekua Bay, Hawaii. The seaward termination of the terrace is a steep wall of reef limestone that extends from 150 to 250 m below sea level. Three samples of limestone collected from the reef face at depths of 204-219 m yield a weighted average&nbsp;</span><span class=\"NLM_tex-math\"><img src=\"https://www.journals.uchicago.edu/na101/home/literatum/publisher/uchicago/journals/content/jg/1984/i30070493/628910/20180625/images/eqs/eq-00001.gif\" alt=\"\" data-mce-src=\"https://www.journals.uchicago.edu/na101/home/literatum/publisher/uchicago/journals/content/jg/1984/i30070493/628910/20180625/images/eqs/eq-00001.gif\"></span><span>&nbsp;age of 13,250 (S.D. 380) years before present. The -150 m terrace as well as two deeper terraces off northwestern Hawaii at depths of&nbsp;</span><span class=\"NLM_tex-math\"><img src=\"https://www.journals.uchicago.edu/na101/home/literatum/publisher/uchicago/journals/content/jg/1984/i30070493/628910/20180625/images/eqs/eq-00002.gif\" alt=\"\" data-mce-src=\"https://www.journals.uchicago.edu/na101/home/literatum/publisher/uchicago/journals/content/jg/1984/i30070493/628910/20180625/images/eqs/eq-00002.gif\"></span><span>&nbsp;and&nbsp;</span><span class=\"NLM_tex-math\"><img src=\"https://www.journals.uchicago.edu/na101/home/literatum/publisher/uchicago/journals/content/jg/1984/i30070493/628910/20180625/images/eqs/eq-00003.gif\" alt=\"\" data-mce-src=\"https://www.journals.uchicago.edu/na101/home/literatum/publisher/uchicago/journals/content/jg/1984/i30070493/628910/20180625/images/eqs/eq-00003.gif\"></span><span>&nbsp;apparently were formed by the interaction of glacioeustatic sea-level changes and island subsidence. The best fit of depth, age, and subsidence data indicates that the northwestern coast of Hawaii has subsided at an absolute rate of 1.8 to 3 + mm/yr and that the rate of subsidence has generally increased over the past 0.3 m.y. Each reef terrace grew intermittently for nearly 0.1 m.y.; the -150 m reef terrace was drowned about 13,000 years ago, the -390 m terrace about 145,000 years ago, and the -580 m terrace about 255,000 years ago. Warping of the two older terraces may have resulted from crustal loading caused by the major growth period of Mauna Loa volcano.</span></p>","language":"English","publisher":"University of Chicago Press","doi":"10.1086/628910","issn":"00221376","usgsCitation":"Moore, J., and Fornari, D., 1984, Drowned reefs as indicators of the rate of subsidence of the Island of Hawaii: Journal of Geology, v. 92, no. 6, p. 752-759, https://doi.org/10.1086/628910.","productDescription":"8 p.","startPage":"752","endPage":"759","numberOfPages":"8","costCenters":[],"links":[{"id":219930,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"92","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a03ffe4b0c8380cd5072b","contributors":{"authors":[{"text":"Moore, J.G.","contributorId":67496,"corporation":false,"usgs":true,"family":"Moore","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":366477,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fornari, D.J.","contributorId":49520,"corporation":false,"usgs":true,"family":"Fornari","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":366476,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013602,"text":"70013602 - 1984 - Analytical performance of a low-gas-flow torch optimized for inductively coupled plasma atomic emission spectrometry","interactions":[],"lastModifiedDate":"2013-03-12T20:50:20","indexId":"70013602","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Analytical performance of a low-gas-flow torch optimized for inductively coupled plasma atomic emission spectrometry","docAbstract":"An inductively coupled Ar plasma (ICP), generated in a lowflow torch, was investigated by the simplex optimization technique for simultaneous, multielement, atomic emission spectrometry (AES). The variables studied included forward power, observation height, gas flow (outer, intermediate, and nebulizer carrier) and sample uptake rate. When the ICP was operated at 720-W forward power with a total gas flow of 5 L/min, the signal-to-background ratios (S/B) of spectral lines from 20 elements were either comparable or inferior, by a factor ranging from 1.5 to 2, to the results obtained from a conventional Ar ICP. Matrix effect studies on the Ca-PO4 system revealed that the plasma generated in the low-flow torch was as free of vaporizatton-atomizatton interferences as the conventional ICP, but easily ionizable elements produced a greater level of suppression or enhancement effects which could be reduced at higher forward powers. Electron number densities, as determined via the series until line merging technique, were tower ht the plasma sustained in the low-flow torch as compared with the conventional ICP. ?? 1984 American Chemical Society.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Analytical Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1021/ac00266a037","issn":"00032700","usgsCitation":"Montaser, A., Huse, G., Wax, R., Chan, S., Golightly, D.W., Kane, J.S., and Dorrzapf, A.F., 1984, Analytical performance of a low-gas-flow torch optimized for inductively coupled plasma atomic emission spectrometry: Analytical Chemistry, v. 56, no. 2, p. 283-288, https://doi.org/10.1021/ac00266a037.","startPage":"283","endPage":"288","numberOfPages":"6","costCenters":[],"links":[{"id":219863,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269217,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/ac00266a037"}],"volume":"56","issue":"2","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5059eb6ce4b0c8380cd48dc3","contributors":{"authors":[{"text":"Montaser, A.","contributorId":19297,"corporation":false,"usgs":true,"family":"Montaser","given":"A.","email":"","affiliations":[],"preferred":false,"id":366453,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Huse, G.R.","contributorId":68171,"corporation":false,"usgs":true,"family":"Huse","given":"G.R.","email":"","affiliations":[],"preferred":false,"id":366457,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wax, R.A.","contributorId":32408,"corporation":false,"usgs":true,"family":"Wax","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":366454,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chan, S.-K.","contributorId":16279,"corporation":false,"usgs":true,"family":"Chan","given":"S.-K.","email":"","affiliations":[],"preferred":false,"id":366452,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Golightly, D. W.","contributorId":32922,"corporation":false,"usgs":true,"family":"Golightly","given":"D.","middleInitial":"W.","affiliations":[],"preferred":false,"id":366455,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kane, J. S.","contributorId":106507,"corporation":false,"usgs":true,"family":"Kane","given":"J.","middleInitial":"S.","affiliations":[],"preferred":false,"id":366458,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Dorrzapf, A. F. Jr.","contributorId":65998,"corporation":false,"usgs":true,"family":"Dorrzapf","given":"A.","suffix":"Jr.","middleInitial":"F.","affiliations":[],"preferred":false,"id":366456,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70013601,"text":"70013601 - 1984 - Review of developments in space remote sensing for monitoring resources","interactions":[],"lastModifiedDate":"2022-05-09T18:44:52.591106","indexId":"70013601","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Review of developments in space remote sensing for monitoring resources","docAbstract":"Space remote sensing systems are compared for suitability in assessing and monitoring the Earth's renewable resources. Systems reviewed include the Landsat Thematic Mapper (TM), the National Oceanic and Atmospheric Administration (NOAA) Advanced Very High Resolution Radiometer (AVHRR), the French Systeme Probatoire d'Observation de la Terre (SPOT), the German Shuttle Pallet Satellite (SPAS) Modular Optoelectronic Multispectral Scanner (MOMS), the European Space Agency (ESA) Spacelab Metric Camera, the National Aeronautics and Space Administration (NASA) Large Format Camera (LFC) and Shuttle Imaging Radar (SIR-A and -B), the Russian Meteor satellite BIK-E and fragment experiments and MKF-6M and KATE-140 camera systems, the ESA Earth Resources Satellite (ERS-1), the Japanese Marine Observation Satellite (MOS-1) and Earth Resources Satellite (JERS-1), the Canadian Radarsat, the Indian Resources Satellite (IRS), and systems proposed or planned by China, Brazil, Indonesia, and others. Also reviewed are the concepts for a 6-channel Shuttle Imaging Spectroradiometer, a 128-channel Shuttle Imaging Spectrometer Experiment (SISEX), and the U. S. Mapsat.","conferenceTitle":"35th Congress of the International Astronautical Federation","conferenceLocation":"Lausanne, Switzerland","language":"English","publisher":"AIAA","publisherLocation":"New York, NY, USA","usgsCitation":"Watkins, A., Lauer, D.T., Bailey, G., Moore, D.G., and Rohde, W.G., 1984, Review of developments in space remote sensing for monitoring resources, 35th Congress of the International Astronautical Federation, Lausanne, Switzerland.","numberOfPages":"31","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":219814,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9361e4b0c8380cd80d9b","contributors":{"authors":[{"text":"Watkins, Allen H.","contributorId":90466,"corporation":false,"usgs":true,"family":"Watkins","given":"Allen H.","affiliations":[],"preferred":false,"id":366450,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lauer, D. T.","contributorId":47907,"corporation":false,"usgs":true,"family":"Lauer","given":"D.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":366449,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bailey, G. B.","contributorId":105041,"corporation":false,"usgs":true,"family":"Bailey","given":"G. B.","affiliations":[],"preferred":false,"id":366451,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Moore, D. G.","contributorId":7285,"corporation":false,"usgs":true,"family":"Moore","given":"D.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":366447,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rohde, W. G.","contributorId":17759,"corporation":false,"usgs":true,"family":"Rohde","given":"W.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":366448,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70013453,"text":"70013453 - 1984 - Submarine sand dunes and sedimentary environments in Oceanographer Canyon.","interactions":[],"lastModifiedDate":"2017-10-04T13:33:41","indexId":"70013453","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","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":"Submarine sand dunes and sedimentary environments in Oceanographer Canyon.","docAbstract":"<p><span>Observations from research submersibles in the northern part of Oceanographer Canyon reveal the presence of an extensive field of large sand dunes on the canyon floor. The dunes are medium to coarse sand, are oriented across the axis, and the largest of them are as high as 3 m and have wavelengths up to 15 m. Their asymmetry, grain size, and height suggest that they are formed by axial currents flowing up- and downcanyon and that the largest dunes require flows of at least 70 cm/sec. Shelf sand, low in silt and clay content, is transported by currents down and along the canyon walls onto the canyon floor. As the sand enters the canyon, it is mixed with immobile gravel deposits on the canyon rim; lower on the walls, the sand is mixed with silt and clay burrowed by organisms from the semiconsolidated sandy silt that underlies the canyon walls and floor. Upon reaching the canyon floor, the sand is sculpted into bed forms by currents, and the fines are winnowed out and transported out of the canyon. At present, the shelf and canyon walls are being eroded by bottom currents and burrowing organisms, whereas the canyon floor is covered by mobile sand that moves both up and down the axis in this part of the canyon.</span><br></p>","language":"English","publisher":"American Geological Institute","doi":"10.1306/212F84DB-2B24-11D7-8648000102C1865D","issn":"00224472","usgsCitation":"Valentine, P.C., Cooper, R., and Uzmann, J., 1984, Submarine sand dunes and sedimentary environments in Oceanographer Canyon.: Journal of Sedimentary Petrology, v. 54, no. 3, p. 704-715, https://doi.org/10.1306/212F84DB-2B24-11D7-8648000102C1865D.","productDescription":"12 p.","startPage":"704","endPage":"715","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":219919,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -70,\n              39\n            ],\n            [\n              -65,\n              39\n            ],\n            [\n              -65,\n              43\n            ],\n            [\n              -70,\n              43\n            ],\n            [\n              -70,\n              39\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"54","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9d2fe4b08c986b31d6c1","contributors":{"authors":[{"text":"Valentine, P. C.","contributorId":46505,"corporation":false,"usgs":true,"family":"Valentine","given":"P.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":366102,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cooper, R.A.","contributorId":29509,"corporation":false,"usgs":true,"family":"Cooper","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":366100,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Uzmann, J. R.","contributorId":38647,"corporation":false,"usgs":true,"family":"Uzmann","given":"J. R.","affiliations":[],"preferred":false,"id":366101,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013580,"text":"70013580 - 1984 - SPECTRAL REFLECTANCE OF THE CARBONATITE COMPLEXES AT MOUNTAIN PASS, CALIFORNIA AND IRON HILL, COLORADO.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:35","indexId":"70013580","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"SPECTRAL REFLECTANCE OF THE CARBONATITE COMPLEXES AT MOUNTAIN PASS, CALIFORNIA AND IRON HILL, COLORADO.","docAbstract":"This paper describes the distinctive spectral reflectance of these two carbonatites and their related rocks, and also discusses the possible use of spectral reflectance measurements for exploring carbonatites. Laboratory spectra recorded in the 0. 4-2. 5 micrometer wavelength range showed absorption features discussed in the abstract. High spectral-resolution airborne radiance measurements were obtained in the 0. 4-1. 0 micrometer and 2. 0-2. 5 micrometer wavelength ranges. Preliminary analysis of the airborne measurements at Mountain Pass showed neodymium-absorption bands over the mining area and in several undisturbed areas of carbonatite. The results indicate that spectral reflectance measurements may provide a rapid laboratory method for determining the presence of anomalously high rare earth (RE) content, and possibly, for estimating relative amounts of certain RE elements.","conferenceTitle":"Proceedings of the International Symposium on Remote Sensing of Environment, Third Thematic Conference: Remote Sensing for Exploration Geology.","conferenceLocation":"Colorado Springs, CO, USA","language":"English","publisher":"Environmental Research Inst of Michigan","publisherLocation":"Ann Arbor, MI, USA","usgsCitation":"Rowan, L.C., Collins, W., Kingston, M.J., and Crowley, J.K., 1984, SPECTRAL REFLECTANCE OF THE CARBONATITE COMPLEXES AT MOUNTAIN PASS, CALIFORNIA AND IRON HILL, COLORADO., Proceedings of the International Symposium on Remote Sensing of Environment, Third Thematic Conference: Remote Sensing for Exploration Geology., Colorado Springs, CO, USA, p. 217-218.","startPage":"217","endPage":"218","numberOfPages":"2","costCenters":[],"links":[{"id":220489,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aaf7ae4b0c8380cd875f2","contributors":{"authors":[{"text":"Rowan, Lawrence C.","contributorId":58629,"corporation":false,"usgs":true,"family":"Rowan","given":"Lawrence","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":366387,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Collins, Williams","contributorId":8727,"corporation":false,"usgs":true,"family":"Collins","given":"Williams","email":"","affiliations":[],"preferred":false,"id":366384,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kingston, Marguerite J.","contributorId":24088,"corporation":false,"usgs":true,"family":"Kingston","given":"Marguerite","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":366386,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Crowley, James K.","contributorId":10928,"corporation":false,"usgs":true,"family":"Crowley","given":"James","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":366385,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70013179,"text":"70013179 - 1984 - Low-temperature heat capacities of CaAl2SiO6 glass and pyroxene and thermal expansion of CaAl2SiO6 pyroxene.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:35","indexId":"70013179","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":738,"text":"American Mineralogist","active":true,"publicationSubtype":{"id":10}},"title":"Low-temperature heat capacities of CaAl2SiO6 glass and pyroxene and thermal expansion of CaAl2SiO6 pyroxene.","docAbstract":"Low-T heat capacities (5-380 K) have been measured by adiabatic calorimetry for synthetic CaAl2SiO6 glass and pyroxene. High-T unit cell parameters were measured for CaAl2SiO6 pyroxene by means of a Nonius Guinier-Lenne powder camera in order to determine the mean coefficient of thermal expansion in the T range 25-1200oC. -J.A.Z.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Mineralogist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0003004X","usgsCitation":"Haselton, H., Hemingway, B.S., and Robie, R.A., 1984, Low-temperature heat capacities of CaAl2SiO6 glass and pyroxene and thermal expansion of CaAl2SiO6 pyroxene.: American Mineralogist, v. 69, no. 5-6, p. 481-489.","startPage":"481","endPage":"489","numberOfPages":"9","costCenters":[],"links":[{"id":220411,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"5-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4a5fe4b0c8380cd68cfd","contributors":{"authors":[{"text":"Haselton, H.T. Jr.","contributorId":83520,"corporation":false,"usgs":true,"family":"Haselton","given":"H.T.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":365482,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hemingway, B. S.","contributorId":7268,"corporation":false,"usgs":true,"family":"Hemingway","given":"B.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":365480,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Robie, R. A.","contributorId":71237,"corporation":false,"usgs":true,"family":"Robie","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":365481,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013180,"text":"70013180 - 1984 - Accretionary lapilli in altered tuffs associated with coal beds","interactions":[],"lastModifiedDate":"2024-05-21T23:28:50.997658","indexId":"70013180","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","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":"Accretionary lapilli in altered tuffs associated with coal beds","docAbstract":"<div><div id=\"12458784\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Accretionary lapilli have been identified in claystones (tonsteins) associated with coal beds of Late Cretaceous age in Wyoming, Utah, and New Mexico. The presence of accretionary lapilli in these tonstein partings confirms their volcanic origin. Similar concentric structures in other claystones not in coal, such as some flint clays, may also be accretionary lapilli, indicating a volcanic origin for these deposits. The lapilli are spherical aggregates of volcanic ash that form in eruption columns, where water vapor and turbulence promote accretion of layers of fine ash about coarse-grained aggregates of ash acting as nuclei. The very fine particle size of the crystalline components of the claystones containing accretionary lapilli, coupled with the relatively small size of the lapilli themselves (2-7.5 mm), suggests that the lapilli formed far downwind from the volcano through interaction with moisture from the atmosphere, rather than with magmatic or phreatic moisture near the source vent.</p></div></div>","language":"English","publisher":"SEPM","doi":"10.1306/212F8409-2B24-11D7-8648000102C1865D","issn":"00224472","usgsCitation":"Bohor, B., and Triplehorn, D.M., 1984, Accretionary lapilli in altered tuffs associated with coal beds: Journal of Sedimentary Petrology, v. 54, no. 1, p. 317-325, https://doi.org/10.1306/212F8409-2B24-11D7-8648000102C1865D.","productDescription":"9 p.","startPage":"317","endPage":"325","numberOfPages":"9","costCenters":[],"links":[{"id":220412,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e671e4b0c8380cd47428","contributors":{"authors":[{"text":"Bohor, B.F.","contributorId":96351,"corporation":false,"usgs":true,"family":"Bohor","given":"B.F.","email":"","affiliations":[],"preferred":false,"id":365484,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Triplehorn, Don M.","contributorId":73211,"corporation":false,"usgs":false,"family":"Triplehorn","given":"Don","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":365483,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013225,"text":"70013225 - 1984 - Application of mineral-solution equilibria to geochemical exploration for sandstone-hosted uranium deposits in two basins in west central Utah","interactions":[],"lastModifiedDate":"2024-01-11T16:24:07.535841","indexId":"70013225","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","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":"Application of mineral-solution equilibria to geochemical exploration for sandstone-hosted uranium deposits in two basins in west central Utah","docAbstract":"<p><span>A geochemical survey utilizing mainly ground waters was conducted in the Milford and Beaver basins. Waters were collected mainly from wells and springs at 100 sites and analyzed for major and minor elements. A computer model (WATEQ3) was used to calculate the redox potential and the state of saturation of the waters with respect to uraninite, coffinite, and other mineral phases. Several areas in the basins were shown to have ground-water environments of reducing redox potentials which are favorable for precipitation of reduced uranium minerals. In addition, the ground waters in some of these areas were shown to be saturated or near saturation with respect to uraninite and coffinite. These areas do not necessarily coincide with areas containing the highest concentrations of uranium in ground water. The methods described in this study for hydrogeochemical exploration for sandstone-hosted uranium deposits may have wide application, particularly throughout those filled basins in the western United States where nearby sources for uranium exist.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.79.2.266","issn":"03610128","usgsCitation":"Miller, W.R., Wanty, R., and McHugh, J.B., 1984, Application of mineral-solution equilibria to geochemical exploration for sandstone-hosted uranium deposits in two basins in west central Utah: Economic Geology, v. 79, no. 2, p. 266-283, https://doi.org/10.2113/gsecongeo.79.2.266.","productDescription":"18 p.","startPage":"266","endPage":"283","numberOfPages":"18","costCenters":[],"links":[{"id":220133,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"2","noUsgsAuthors":false,"publicationDate":"1984-04-01","publicationStatus":"PW","scienceBaseUri":"5059eca7e4b0c8380cd493ec","contributors":{"authors":[{"text":"Miller, W. R.","contributorId":92239,"corporation":false,"usgs":true,"family":"Miller","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":365580,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wanty, R. B. 0000-0002-2063-6423","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":66704,"corporation":false,"usgs":true,"family":"Wanty","given":"R. B.","affiliations":[],"preferred":false,"id":365578,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McHugh, J. B.","contributorId":79462,"corporation":false,"usgs":true,"family":"McHugh","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":365579,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013463,"text":"70013463 - 1984 - Geomorphic and vegetative characteristics along three northern Virginia streams","interactions":[],"lastModifiedDate":"2024-01-03T01:12:32.663335","indexId":"70013463","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Geomorphic and vegetative characteristics along three northern Virginia streams","docAbstract":"<p>Geometry, sediment, and woody-vegetation data were collected from bottomland geomorphic surfaces at valley sections along three gaged perennial streams of northern Virginia. The basins of the streams differ widely in topography and physiography; mean discharges vary from 0.196 to 323 m<sup>3</sup><span>&nbsp;</span>per sec. Prevalent surfaces identified were the depositional bar, the active-channel shelf, the flood plain, and terraces. The stages corresponding to active-channel–shelf levels were equivalent to flow durations of 5% to 13%. Stages corresponding to flood-plain levels were equivalent to discharges with 1.4- to 2.0-yr recurrence intervals. The discharge data and statistical tests of geomorphic-surface, sediment, and vegetative data suggest that the various alluvial features are formed and maintained by hydraulically controlled sorting processes.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1984)95<1093:GAVCAT>2.0.CO;2","usgsCitation":"Osterkamp, W.R., and Hupp, C., 1984, Geomorphic and vegetative characteristics along three northern Virginia streams: Geological Society of America Bulletin, v. 95, no. 9, p. 501-513, https://doi.org/10.1130/0016-7606(1984)95<1093:GAVCAT>2.0.CO;2.","productDescription":"13 p.","startPage":"501","endPage":"513","numberOfPages":"13","costCenters":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"links":[{"id":220039,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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R.","contributorId":46044,"corporation":false,"usgs":true,"family":"Osterkamp","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":366119,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hupp, C.R. 0000-0003-1853-9197","orcid":"https://orcid.org/0000-0003-1853-9197","contributorId":78775,"corporation":false,"usgs":true,"family":"Hupp","given":"C.R.","affiliations":[],"preferred":false,"id":366120,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013465,"text":"70013465 - 1984 - Local gravity anomalies produced by dislocation sources","interactions":[],"lastModifiedDate":"2024-06-27T16:29:40.73796","indexId":"70013465","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":6453,"text":"Journal of Geophysical Research Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Local gravity anomalies produced by dislocation sources","docAbstract":"<p><span>Rundle (1978) and Walsh and Rice (1979) have shown that the change in the vertical component of gravity is proportional to uplift for a spherical source of dilatation and for slip on an infinitely long dip-slip fault. In the first case, no free air gravity anomaly is produced and in the second case no Bouguer gravity anomaly. Gravity anomalies due to other dislocation sources in three dimensions are as follows: For strike-slip faulting the ratio of the gravity change to uplift depends upon position; however, the gravity change contours are roughly similar to those corresponding to a zero free air gravity anomaly. Nor is the ratio constant for dip-slip faulting except for the two special cases of dip slip on a vertical fault and horizontal slip on a horizontal fault, neither of which produce a Bouguer anomaly. The Bouguer anomaly produced by an open horizontal crack is the same as would be produced had the material within the crack been mined out without deforming the solid. If the horizontal crack were filled with material of density equal to the host rock (a good approximation to sill formation), no Bouguer anomaly is produced. For cracks of other inclinations the ratio of gravity change to uplift is not constant. Thus, dilatancy, in general, does not correspond to the absence of a free air anomaly, as might be suggested by the special case of a spherical source of dilatation. For two-dimensional models a cylindrical source of dilatation produces no free air gravity anomaly, dip-slip faulting produces no Bouguer anomaly, and open cracks produce a Bouguer anomaly equal to that which would be produced had the material within the crack been mined out without deforming the solid. A two-dimensional crack filled with material of density equal to that of the host rock would produce no Bouguer anomaly. Jachens et al. (1983) have reported temporal changes in gravity, elevation, and area strain along the San Andreas fault in southern California such that the Bouguer anomaly apparently remains unchanged and the uplift-to-strain ratio is about −100 km. Several dislocation mechanisms are proposed that fulfill these constraints, but these mechanisms appear to be rather contrived and are not regarded as satisfactory explanations.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB089iB03p01945","issn":"01480227","usgsCitation":"Savage, J., 1984, Local gravity anomalies produced by dislocation sources: Journal of Geophysical Research Solid Earth, v. 89, no. B3, p. 1945-1952, https://doi.org/10.1029/JB089iB03p01945.","productDescription":"8 p.","startPage":"1945","endPage":"1952","numberOfPages":"8","costCenters":[],"links":[{"id":487082,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/jb089ib03p01945","text":"Publisher Index Page"},{"id":220041,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"89","issue":"B3","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a48dce4b0c8380cd681a1","contributors":{"authors":[{"text":"Savage, J.C. 0000-0002-5114-7673","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":102876,"corporation":false,"usgs":true,"family":"Savage","given":"J.C.","affiliations":[],"preferred":false,"id":366123,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013466,"text":"70013466 - 1984 - MAPPING IN MICRONESIA.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:39","indexId":"70013466","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"MAPPING IN MICRONESIA.","docAbstract":"The U. S. Geological Survey has recently completed a series of new topographic maps of Micronesia in cooperation with the Trust Territory of the Pacific Islands, the Federal agency administering the islands. Monocolor 1:10,000-scale manuscripts were compiled, from which 1:25,000-scale metric quadrangles were derived with symbology consistent with USGS quadrangle mapping. The publication of these new maps coincides with the impending political changes resulting from self-determination referendums held in Micronesia. Local sources have helped considerably with field logistics and resolution of geographic name controversies. Technical aspects of this project included development of tropical feature symbology, location of cadastral subdivisions and associated boundaries and mapping of many outlying coral reefs.","largerWorkTitle":"Technical Papers of the American Congress of Surveying and Mapping","conferenceTitle":"Technical Papers of the 44th Annual Meeting of the American Congress on Surveying and Mapping.","conferenceLocation":"Washington, DC, USA","language":"English","publisher":"American Congress on Surveying & Mapping","publisherLocation":"Falls Church, VA, USA","issn":"07483244","usgsCitation":"Olsen, R.W., and Swinnerton, J., 1984, MAPPING IN MICRONESIA., <i>in</i> Technical Papers of the American Congress of Surveying and Mapping, Washington, DC, USA, p. 341-350.","startPage":"341","endPage":"350","numberOfPages":"10","costCenters":[],"links":[{"id":220042,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4ab5e4b0c8380cd68f93","contributors":{"authors":[{"text":"Olsen, Randle W.","contributorId":59941,"corporation":false,"usgs":true,"family":"Olsen","given":"Randle","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":366124,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swinnerton, J.R.","contributorId":91237,"corporation":false,"usgs":true,"family":"Swinnerton","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":366125,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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