{"pageNumber":"1501","pageRowStart":"37500","pageSize":"25","recordCount":40834,"records":[{"id":70207799,"text":"70207799 - 1984 - Origin and geochemistry of Cretaceous deep-sea black shales and multicolored claystones, with emphasis on Deep Sea Drilling Project Site 530, southern Angola Basin","interactions":[],"lastModifiedDate":"2020-01-14T06:48:14","indexId":"70207799","displayToPublicDate":"1984-01-13T11:03:23","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1996,"text":"Initial Reports of the D.S.D.P.","active":true,"publicationSubtype":{"id":10}},"title":"Origin and geochemistry of Cretaceous deep-sea black shales and multicolored claystones, with emphasis on Deep Sea Drilling Project Site 530, southern Angola Basin","docAbstract":"Deep-water sedimentary sequences of mid-Cretaceous age, rich in organic carbon, have been recovered at many DSDP sites in the Atlantic Ocean. Most of these sequences have a marked cyclicity in amount of organic carbon resulting in interbedded multicolored shale, marlstone, and (or) limestone that have cycle periods of 20,000 to 100,000 years and average 40,000 to 50,000 years. These cycles may be related to some climatic control on influx of terrigenous organic matter and sediment, rates of upwelling and sea-surface production of organic matter, and preservation of organic matter related to deeper-water dissolved oxygen concentration. These variations in supply of organic matter had pronounced effects on the potential of the sediment for subsequent diagenetic changes and geochemical partitioning in adjacent beds.
Many trace elements are enriched in organic-carbon-rich lithologies relative to interbedded organic-carbon-poor lithologies. Elements that are most commonly enriched are Cr, Ni, V, Cu, Zn, and Mo. The association of high traceelement concentrations with organic matter may be the result of concentration of these elements by organisms or by chemical sorption and precipitation processes under anoxic conditions. Detailed trace-element profiles from organiccarbon-rich strata at Site 530 suggest that there may be differential mobility of trace elements, with diffusion of some elements over distances of at least tens of meters. The sequence of trace-element mobility, from highest to lowest, is approximately Ba, Mn, Pb, Ni, Co, Cr, Cu, Zn, V, Cd, and Mo. Slowly deposited, oxidized clays directly overlying some black shale sequences are enriched in some metals, particularly Fe, Mn, Zn, and Cu, relative to normal pelagic clays, and this enrichment may be the result of upward migration of metals in pore waters during compaction or diffusion from the underlying black shale.
Most depositional models that have been used to explain the accumulation of the organic-carbon-rich strata imply that reducing conditions in the sediments (and therefore the increased degree of preservation of organic matter) were the result of anoxic or near-anoxic conditions in oceanic bottom waters, or in a midwater oxygen-minimum zone. Evidence from several DSDP sites in the Atlantic, however, indicate that some of these middle Cretaceous \"black shale\" beds may be the result of variations in rate of supply of organic matter that produced anoxia or near-anoxia within midwater oxygen-minimum zones and possibly, under extreme conditions, throughout much of the bottomwater mass. Although bottom-water anoxia may have occurred during periods of organic-carbon-rich strata, it was not necessarily the only cause for accumulation of these strata. The main reason for the accumulation of organic-carbonrich strata was an increase in the relative amount of organic debris being deposited. Some of this organic debris was derived from continental-margin areas of increased production, accumulation, and preservation of organic matter from marine, terrestrial, or mixed sources and transported to slope and basinal sites by turbidity currents.
","language":"English","publisher":"Texas A&M University","doi":"10.2973/dsdp.proc.75.121.1984","usgsCitation":"Dean, W.E., Arthur, M., and Stow, D., 1984, Origin and geochemistry of Cretaceous deep-sea black shales and multicolored claystones, with emphasis on Deep Sea Drilling Project Site 530, southern Angola Basin: Initial Reports of the D.S.D.P., v. 75, p. 819-844, https://doi.org/10.2973/dsdp.proc.75.121.1984.","productDescription":"26 p.","startPage":"819","endPage":"844","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":487257,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2973/dsdp.proc.75.121.1984","text":"Publisher Index Page"},{"id":371188,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Site 530","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 9.31640625,\n -24.986058021167594\n ],\n [\n 16.89697265625,\n -24.986058021167594\n ],\n [\n 16.89697265625,\n -17.035777250427184\n ],\n [\n 9.31640625,\n -17.035777250427184\n ],\n [\n 9.31640625,\n -24.986058021167594\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"75","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Dean, Walter E. dean@usgs.gov","contributorId":1801,"corporation":false,"usgs":true,"family":"Dean","given":"Walter","email":"dean@usgs.gov","middleInitial":"E.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":779370,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Arthur, M.A.","contributorId":24791,"corporation":false,"usgs":true,"family":"Arthur","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":779371,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stow, D.A.V.","contributorId":35441,"corporation":false,"usgs":true,"family":"Stow","given":"D.A.V.","email":"","affiliations":[],"preferred":false,"id":779372,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70207757,"text":"70207757 - 1984 - Models for the deposition of Mesozoic-Cenozoic fine-grained organic-carbon-rich sediment in the deep sea","interactions":[],"lastModifiedDate":"2020-01-10T06:34:05","indexId":"70207757","displayToPublicDate":"1984-01-09T13:13:29","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5011,"text":"Geological Society of London Special Publications","active":true,"publicationSubtype":{"id":10}},"title":"Models for the deposition of Mesozoic-Cenozoic fine-grained organic-carbon-rich sediment in the deep sea","docAbstract":"The widespread occurrence of organic-carbon-rich strata (‘black shales’) in certain portions of Jurassic, Cretaceous and Cenozoic sequences has been well-documented from Deep Sea Drilling Project sites in the Atlantic and Pacific Oceans and from sequences, now exposed on land, originally deposited in the Tethyan ocean. These ancient black shales usually have been explained by analogy with examples of modern deep-sea sediments in which organic matter locally is preserved by (1) increasing the supply of organic matter, (2) increasing the rate of sedimentation, and/or (3) decreasing the oxygen content of the bottom water. However, detailed examination of many black shales reveals characteristics that cannot be explained by simple local models, including: their approximate coincidence in time globally; their occurrence in a variety of different environments, including open oxygenated oceans, restricted basins, deep and shallow water; their interbedding with organic-carbonpoor strata which often dominate a so-called black shale sequence; their deposition by pelagic, hemipelagic, turbiditic and other processes; and the variations in type and amount of organic matter that occur even within the same sequence.
A more complex model for the origin of black shales therefore appears most appropriate, in which the cyclic preservation of organic matter depends on the interplay of the three main variables, namely supply of organic matter, sedimentation rate, and deep-water oxygenation, each of which varies independently to some extent. The variation and relative importance of these parameters in individual basins and widespread black shale deposition in general are linked globally and temporally by changes in global sea-level, climate and related changes in oceanic circulation. An important and often overlooked factor for the supply of organic matter to deep-basin sediments is the frequency and magnitude of redepositional processes. The interplay of these variables is discussed in relation to the middle Cretaceous and Cenozoic organic-carbon-rich strata, in particular, which show marked differences in the relative importance of the different variables.
","language":"English","publisher":"The Geological Society","doi":"10.1144/GSL.SP.1984.015.01.34","usgsCitation":"Arthur, M., Dean, W.E., and Stow, D., 1984, Models for the deposition of Mesozoic-Cenozoic fine-grained organic-carbon-rich sediment in the deep sea: Geological Society of London Special Publications, v. 15, p. 527-560, https://doi.org/10.1144/GSL.SP.1984.015.01.34.","productDescription":"34 p.","startPage":"527","endPage":"560","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":371116,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"15","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Arthur, M.A.","contributorId":24791,"corporation":false,"usgs":true,"family":"Arthur","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":779203,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dean, Walter E. dean@usgs.gov","contributorId":1801,"corporation":false,"usgs":true,"family":"Dean","given":"Walter","email":"dean@usgs.gov","middleInitial":"E.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":779204,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stow, D.A.V.","contributorId":35441,"corporation":false,"usgs":true,"family":"Stow","given":"D.A.V.","email":"","affiliations":[],"preferred":false,"id":779205,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":5221942,"text":"5221942 - 1984 - Evaluation of potential embryotoxicity and teratogenicity of 42 herbicides, insecticides, and petroleum contaminants to mallard eggs","interactions":[],"lastModifiedDate":"2023-12-12T16:45:37.39864","indexId":"5221942","displayToPublicDate":"1984-01-01T12:19:21","publicationYear":"1984","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":"Evaluation of potential embryotoxicity and teratogenicity of 42 herbicides, insecticides, and petroleum contaminants to mallard eggs","docAbstract":"Results are reported for the embryotoxicity of 42 environmental contaminants applied externally to mallard (Anas platyrhynchos) eggs including crude and refined petroleum, and commercial formulations of herbicides and insecticides. Many of the petroleum pollutants were embryotoxic and moderately teratogenic and had LD50s of 0.3 to 5 μl per egg (∼6–90 μg/g egg). The most toxic was a commercial oil used for control of road dust followed by South Louisiana crude oil, Kuwait crude, no. 2 fuel oil, bunker C fuel oil, and industrial and automotive waste oil. Prudhoe Bay crude, unused crankcase oil, aviation kerosene, and aliphatic hydrocarbon mixtures were less toxic (LD50s of 18 to over 75 μl) and less teratogenic.
The LC50s of herbicides and insecticides in aqueous emulsion were measured by egg immersion; the most toxic were paraquat and trifluralin (LC50s of about 1.5 Ibs/A; 1.7 kg/ha). Propanil, bromoxynil with MCPA, methyl diclofop, prometon, endrin, sulprofos, and parathion were toxic (LC50s of 7 to 40 Ibs/A; 7.8–44.8 kg/ha), whereas 2,4-D, glyphosate, atrazine, carbaryl, dalapon, dicamba, methomyl, and phosmet were only slightly toxic or not toxic (LC50s of 178 to over 500 Ibs/A; 199–560 kg/ha).
Pesticides in nontoxic oil vehicle applied by microliter pipet were up to 18 times more toxic than when applied in water vehicle, which was probably due to better penetration of the pesticide past the eggshell and its membranes. Teratogenic effects and impaired embryonic growth are reported and results discussed in terms of potential hazard at field levels of application. A discussion is provided on the effects of pollutants on the eggs of other species of birds under laboratory and field conditions.
","language":"English","publisher":"Springer","doi":"10.1007/BF01055642","usgsCitation":"Hoffman, D.J., and Albers, P.H., 1984, Evaluation of potential embryotoxicity and teratogenicity of 42 herbicides, insecticides, and petroleum contaminants to mallard eggs: Archives of Environmental Contamination and Toxicology, v. 13, no. 1, p. 15-27, https://doi.org/10.1007/BF01055642.","productDescription":"13 p.","startPage":"15","endPage":"27","numberOfPages":"13","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":193591,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a09e4b07f02db5fac39","contributors":{"authors":[{"text":"Hoffman, David J.","contributorId":86075,"corporation":false,"usgs":true,"family":"Hoffman","given":"David","email":"","middleInitial":"J.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":335090,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Albers, Peter H.","contributorId":112805,"corporation":false,"usgs":true,"family":"Albers","given":"Peter","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":335091,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70221676,"text":"70221676 - 1984 - Significant unconformities and the hiatuses represented by them in the Paleogene of the Atlantic and Gulf Coastal Province","interactions":[],"lastModifiedDate":"2021-06-28T16:12:58.25941","indexId":"70221676","displayToPublicDate":"1984-01-01T11:06:30","publicationYear":"1984","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Significant unconformities and the hiatuses represented by them in the Paleogene of the Atlantic and Gulf Coastal Province","docAbstract":"A biostratigraphic, chronostratigraphic, and magnetostratigraphic model has been calibrated to produce a new time scale for the Paleogene. The model gives the biostratigraphic position and duration represented by significant unconformities in three areas of the Atlantic and Gulf Coastal Province: 1) western and central Alabama; 2) South Carolina; and 3) central Virginia to southwestern Maryland. In these areas, the most significant unconformity, in terms of duration represented and lateral extent, is found in the lower Eocene. In Alabama, this unconformity centers around 51.4 m.y. and represents a hiatus of about 1.4 m.y. In South Carolina, this unconformity centers around 50.3 m.y. and represents a hiatus of about 10.0 m.y. In Virginia-Maryland, the lower Eocene unconformity centers around 49.0 m.y. and represents a hiatus of about 7.3 m.y. A significant unconformity exists between the Cretaceous and Tertiary in all three areas. On the Atlantic coast the Cretaceous-Tertiary unconformity represents some missing Danian and significant missing Maestrichtian. In Alabama, however, there is virtually a complete Danian section and it is only most of the upper Maestrichtian that is missing. There are significant regional unconformities in all three areas.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Interregional unconformities and hydrocarbon accumulation","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"American Association of Petroleum Geologists","doi":"10.1306/M36440C4","usgsCitation":"Hazel, J.E., Edwards, L.E., and Bybell, L.M., 1984, Significant unconformities and the hiatuses represented by them in the Paleogene of the Atlantic and Gulf Coastal Province, chap. of Interregional unconformities and hydrocarbon accumulation, v. 36, p. 59-66, https://doi.org/10.1306/M36440C4.","productDescription":"8 p.","startPage":"59","endPage":"66","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":386802,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hazel, Joseph E. Jr.","contributorId":15609,"corporation":false,"usgs":true,"family":"Hazel","given":"Joseph","suffix":"Jr.","email":"","middleInitial":"E.","affiliations":[],"preferred":true,"id":818406,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Edwards, Lucy E. 0000-0003-4075-3317 leedward@usgs.gov","orcid":"https://orcid.org/0000-0003-4075-3317","contributorId":2647,"corporation":false,"usgs":true,"family":"Edwards","given":"Lucy","email":"leedward@usgs.gov","middleInitial":"E.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"preferred":true,"id":818407,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bybell, Laurel M. 0000-0002-4760-7542 lbybell@usgs.gov","orcid":"https://orcid.org/0000-0002-4760-7542","contributorId":1760,"corporation":false,"usgs":true,"family":"Bybell","given":"Laurel","email":"lbybell@usgs.gov","middleInitial":"M.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":818408,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70120628,"text":"70120628 - 1984 - A hierarchical model to organize integrated research on the Okefenokee Swamp","interactions":[],"lastModifiedDate":"2023-09-12T15:48:39.077517","indexId":"70120628","displayToPublicDate":"1984-01-01T10:47:18","publicationYear":"1984","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"A hierarchical model to organize integrated research on the Okefenokee Swamp","docAbstract":"No abstract available.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The Okefenokee Swamp: Its natural history, geology, and geochemistry","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Wetland Surveys","publisherLocation":"Los Alamos, NM","usgsCitation":"Auble, G.T., Patten, B.C., Bosserman, R.W., and Hamilton, D.B., 1984, A hierarchical model to organize integrated research on the Okefenokee Swamp, chap. of The Okefenokee Swamp: Its natural history, geology, and geochemistry, p. 264-279.","productDescription":"16 p.","startPage":"264","endPage":"279","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":292272,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Georgia","otherGeospatial":"Okefenokee Swamp","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -82.461238,30.590082 ], [ -82.461238,30.743642 ], [ -82.20512,30.743642 ], [ -82.20512,30.590082 ], [ -82.461238,30.590082 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ef1ec0e4b0bfa1f993eec4","contributors":{"authors":[{"text":"Auble, Gregor T. 0000-0002-0843-2751 aubleg@usgs.gov","orcid":"https://orcid.org/0000-0002-0843-2751","contributorId":2187,"corporation":false,"usgs":true,"family":"Auble","given":"Gregor","email":"aubleg@usgs.gov","middleInitial":"T.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":498334,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Patten, Bernard C.","contributorId":329674,"corporation":false,"usgs":false,"family":"Patten","given":"Bernard","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":498336,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bosserman, R. W.","contributorId":15941,"corporation":false,"usgs":true,"family":"Bosserman","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":498335,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hamilton, David B. hamiltond@usgs.gov","contributorId":193,"corporation":false,"usgs":true,"family":"Hamilton","given":"David","email":"hamiltond@usgs.gov","middleInitial":"B.","affiliations":[],"preferred":true,"id":498333,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70198541,"text":"70198541 - 1984 - Modeling the interrelationship of groundwater and surface water","interactions":[],"lastModifiedDate":"2018-08-13T10:05:16","indexId":"70198541","displayToPublicDate":"1984-01-01T09:23:54","publicationYear":"1984","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Modeling the interrelationship of groundwater and surface water","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Modeling of total acid precipitation impacts","language":"English","publisher":"Butterworth","publisherLocation":"Boston","usgsCitation":"Winter, T.C., 1984, Modeling the interrelationship of groundwater and surface water, chap. of Modeling of total acid precipitation impacts, p. 89-119.","productDescription":"31 p.","startPage":"89","endPage":"119","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":356266,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"editors":[{"text":"Schnoor, J. L.","contributorId":92095,"corporation":false,"usgs":true,"family":"Schnoor","given":"J. L.","affiliations":[],"preferred":false,"id":742256,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Winter, T. C.","contributorId":23485,"corporation":false,"usgs":true,"family":"Winter","given":"T.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":741840,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70231699,"text":"70231699 - 1984 - Satellite remote sensing: Implications for state and local information systems","interactions":[],"lastModifiedDate":"2022-05-23T14:54:15.48666","indexId":"70231699","displayToPublicDate":"1984-01-01T09:18:44","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Satellite remote sensing: Implications for state and local information systems","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Seminar on the multipurpose cadastre: Modernizing land information systems in North America","largerWorkSubtype":{"id":15,"text":"Monograph"},"conferenceTitle":"2nd Seminar on the multipurpose cadastre","conferenceDate":"December, 1984","conferenceLocation":"Madison, Wisconsin, United States","language":"English","publisher":"University of Wisconsin","usgsCitation":"Lauer, D.T., 1984, Satellite remote sensing: Implications for state and local information systems, in Seminar on the multipurpose cadastre: Modernizing land information systems in North America, Madison, Wisconsin, United States, December, 1984.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":400889,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Lauer, D. T.","contributorId":47907,"corporation":false,"usgs":true,"family":"Lauer","given":"D.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":843466,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70120849,"text":"70120849 - 1984 - Final report. Habitat management evaluation model project. Phase 1: feasibility","interactions":[],"lastModifiedDate":"2014-08-18T09:17:31","indexId":"70120849","displayToPublicDate":"1984-01-01T09:16:53","publicationYear":"1984","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"seriesNumber":"WELUT Report 85/W01","title":"Final report. Habitat management evaluation model project. Phase 1: feasibility","docAbstract":"No abstract available.","language":"English","publisher":"U.S. Fish and Wildlife Service, Western Energy and Land Use Team","publisherLocation":"Fort Collins, CO","usgsCitation":"Andrews, K., Farmer, A., and Sousa, P., 1984, Final report. Habitat management evaluation model project. Phase 1: feasibility.","costCenters":[],"links":[{"id":292363,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f25fe4e4b0333418718919","contributors":{"authors":[{"text":"Andrews, K.","contributorId":98652,"corporation":false,"usgs":true,"family":"Andrews","given":"K.","email":"","affiliations":[],"preferred":false,"id":498467,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farmer, A.H.","contributorId":79063,"corporation":false,"usgs":true,"family":"Farmer","given":"A.H.","email":"","affiliations":[],"preferred":false,"id":498466,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sousa, P.J.","contributorId":106809,"corporation":false,"usgs":true,"family":"Sousa","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":498468,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70206361,"text":"70206361 - 1984 - Pleistocene glaciation of volcano Ajusco, central Mexico, and comparison with the standard Mexican glacial sequence","interactions":[],"lastModifiedDate":"2019-11-01T06:45:41","indexId":"70206361","displayToPublicDate":"1984-01-01T07:14:23","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Pleistocene glaciation of volcano Ajusco, central Mexico, and comparison with the standard Mexican glacial sequence","docAbstract":"Three Pleistocene glaciations and two Holocene Neoglacial advances occurred on volcano Ajusco in central Mexico. Lateral moraines of the oldest glaciation, the Marqués, above 3250 m are made of light-gray indurated till and are extensively modified by erosion. Below 3200 m the till is dark red, decomposed, and buried beneath volcanic colluvium and tephra. Very strongly to strongly developed soil profiles (Inceptisols) have formed in the Marqués till and in overlying colluvia and tephra. Large sharp-crested moraines of the second glaciation, the Santo Tomás, above 3300 m are composed of pale-brown firm till and are somewhat eroded by gullies. Below 3250 m the till is light reddish brown, cemented, and weathered. Less-strongly developed soil profiles (Inceptisols) have formed in the Santo Tomás till and in overlying colluvia and tephra. Narrow-crested moraines of yellowish-brown loose till of the third glaciation, the Albergue, are uneroded. Weakly developed soil profiles (Inceptisols) in the Albergue till have black ash in the upper horizon. Two small Neoglacial moraines of yellowish-brown bouldery till on the cirque floor of the largest valley support weakly developed soil profiles with only A and Cox horizons and no ash in the upper soil horizons. Radiocarbon dating of organic matter of the B horizons developed in tills, volcanic ash, and colluvial volcanic sand includes ages for both the soil-organic residue and the humic-acid fraction, with differences from 140 to 660 yr. The dating provides minimum ages of about 27,000 yr for the Marqués glaciation and about 25,000 yr for the Santo Tomás glaciation. Dates for the overlying tephra indicate a complex volcanic history for at least another 15,000 yr. Comparison of the Ajusco glacial sequence with that on Iztaccíhuatl to the east suggests that the Marqués and Santo Tomás glaciations may be equivalent to the Diamantes glaciation First and Second advances, the Albergue to the Alcalican glaciations, and the Neoglacial to the Ayolotepito advances.
","language":"English ","publisher":"Cambridge University","doi":"10.1016/0033-5894(84)90086-3","issn":"00335894","usgsCitation":"White, S., and Valastro, S., 1984, Pleistocene glaciation of volcano Ajusco, central Mexico, and comparison with the standard Mexican glacial sequence: Quaternary Research, v. 21, no. 1, p. 21-35, https://doi.org/10.1016/0033-5894(84)90086-3.","productDescription":"15 p. ","startPage":"21","endPage":"35","costCenters":[],"links":[{"id":368790,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico ","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-97.14001,25.87],[-97.52807,24.99214],[-97.70295,24.27234],[-97.77604,22.93258],[-97.87237,22.44421],[-97.69904,21.89869],[-97.38896,21.41102],[-97.18933,20.63543],[-96.52558,19.89093],[-96.29213,19.32037],[-95.90088,18.82802],[-94.83906,18.56272],[-94.42573,18.14437],[-93.54865,18.42384],[-92.78611,18.52484],[-92.03735,18.70457],[-91.4079,18.87608],[-90.77187,19.28412],[-90.53359,19.86742],[-90.45148,20.70752],[-90.27862,20.99986],[-89.60132,21.26173],[-88.54387,21.49368],[-87.65842,21.45885],[-87.05189,21.54354],[-86.81198,21.33151],[-86.84591,20.84986],[-87.38329,20.2554],[-87.62105,19.64655],[-87.43675,19.4724],[-87.58656,19.04013],[-87.83719,18.25982],[-88.09066,18.51665],[-88.30003,18.49998],[-88.49012,18.48683],[-88.84834,17.8832],[-89.02986,18.00151],[-89.15091,17.95547],[-89.14308,17.80832],[-90.06793,17.81933],[-91.00152,17.81759],[-91.00227,17.25466],[-91.45392,17.25218],[-91.08167,16.91848],[-90.71182,16.68748],[-90.60085,16.47078],[-90.43887,16.41011],[-90.46447,16.06956],[-91.74796,16.06656],[-92.22925,15.25145],[-92.08722,15.06458],[-92.20323,14.8301],[-92.22775,14.53883],[-93.35946,15.61543],[-93.87517,15.94016],[-94.69166,16.20098],[-95.25023,16.12832],[-96.05338,15.75209],[-96.55743,15.65352],[-97.26359,15.91706],[-98.01303,16.10731],[-98.94768,16.56604],[-99.6974,16.70616],[-100.8295,17.17107],[-101.66609,17.64903],[-101.91853,17.91609],[-102.47813,17.97575],[-103.50099,18.29229],[-103.91753,18.74857],[-104.99201,19.31613],[-105.49304,19.94677],[-105.7314,20.4341],[-105.39777,20.53172],[-105.50066,20.8169],[-105.27075,21.07628],[-105.26582,21.4221],[-105.60316,21.87115],[-105.69341,22.26908],[-106.02872,22.77375],[-106.90998,23.76777],[-107.91545,24.54892],[-108.4019,25.17231],[-109.2602,25.58061],[-109.44409,25.82488],[-109.29164,26.44293],[-109.80146,26.67618],[-110.39173,27.16211],[-110.64102,27.85988],[-111.17892,27.94124],[-111.75961,28.46795],[-112.22823,28.95441],[-112.27182,29.26684],[-112.80959,30.02111],[-113.16381,30.78688],[-113.14867,31.17097],[-113.87188,31.56761],[-114.20574,31.52405],[-114.77645,31.79953],[-114.9367,31.39348],[-114.77123,30.91362],[-114.6739,30.16268],[-114.33097,29.75043],[-113.58888,29.06161],[-113.42405,28.82617],[-113.27197,28.75478],[-113.14004,28.41129],[-112.9623,28.42519],[-112.76159,27.78022],[-112.45791,27.52581],[-112.24495,27.17173],[-111.61649,26.66282],[-111.28467,25.73259],[-110.98782,25.29461],[-110.71001,24.826],[-110.65505,24.29859],[-110.17286,24.26555],[-109.77185,23.81118],[-109.4091,23.36467],[-109.43339,23.18559],[-109.85422,22.81827],[-110.03139,22.82308],[-110.29507,23.43097],[-110.9495,24.00096],[-111.67057,24.48442],[-112.18204,24.73841],[-112.14899,25.47013],[-112.30071,26.012],[-112.7773,26.32196],[-113.46467,26.76819],[-113.59673,26.63946],[-113.84894,26.90006],[-114.46575,27.14209],[-115.05514,27.72273],[-114.98225,27.7982],[-114.57037,27.74149],[-114.19933,28.115],[-114.16202,28.56611],[-114.93184,29.27948],[-115.51865,29.55636],[-115.88737,30.18079],[-116.25835,30.83646],[-116.72153,31.63574],[-117.12776,32.53534],[-115.99135,32.61239],[-114.72139,32.72083],[-114.815,32.52528],[-113.30498,32.03914],[-111.02361,31.33472],[-109.035,31.34194],[-108.24194,31.34222],[-108.24,31.75485],[-106.50759,31.75452],[-106.1429,31.39995],[-105.63159,31.08383],[-105.03737,30.64402],[-104.70575,30.12173],[-104.45697,29.57196],[-103.94,29.27],[-103.11,28.97],[-102.48,29.76],[-101.6624,29.7793],[-100.9576,29.38071],[-100.45584,28.69612],[-100.11,28.11],[-99.52,27.54],[-99.3,26.84],[-99.02,26.37],[-98.24,26.06],[-97.53,25.84],[-97.14001,25.87]]]},\"properties\":{\"name\":\"Mexico\"}}]}","volume":"21","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","contributors":{"authors":[{"text":"White, Sidney","contributorId":220134,"corporation":false,"usgs":true,"family":"White","given":"Sidney","email":"","affiliations":[],"preferred":false,"id":774274,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Valastro, S.","contributorId":96436,"corporation":false,"usgs":true,"family":"Valastro","given":"S.","email":"","affiliations":[],"preferred":false,"id":774275,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014022,"text":"70014022 - 1984 - Optimization of electrothermal atomization parameters for simultaneous multielement atomic absorption spectrometry","interactions":[],"lastModifiedDate":"2023-03-10T17:01:58.649487","indexId":"70014022","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":"Optimization of electrothermal atomization parameters for simultaneous multielement atomic absorption spectrometry","docAbstract":"The effect of the acid matrix, the measurement mode (height or area), the atomizer surface (unpyrolyzed and pyrolyzed graphite), the atomization mode (from the wall or from a platform), and the atomization temperature on the simultaneous electrothermal atomization of Co, Cr, Cu, Fe, Mn, Mo, Ni, V, and Zn was examined. The 5% HNO3 matrix gave rise to severe irreproducibility using a pyrolyzed tube unless the tube was properly \"prepared\". The 5% HCl matrix did not exhibit this problem, and no problems were observed with either matrix using an unpyrolized tube or a pyrolyzed platform. The 5% HCl matrix gave better sensitivities with a pyrolyzed tube but the two matrices were comparable for atomization from a platform. If Mo and V are to be analyzed with the other seven elements, a high atomization temperature (2700??C or greater) is necessary regardless of the matrix, the measurement mode, the atomization mode, or the atomizer surface. Simultaneous detection limits (peak height with pyrolyzed tube atomization) were comparable to those of conventional atomic absorption spectrometry using electrothermal atomization above 280 nm. Accuracies and precisions of ??10-15% were found in the 10 to 120 ng mL-1 range for the analysis of NBS acidified water standards.","language":"English","publisher":"ACS Publications","doi":"10.1021/ac00265a014","usgsCitation":"Harnly, J.M., and Kane, J., 1984, Optimization of electrothermal atomization parameters for simultaneous multielement atomic absorption spectrometry: Analytical Chemistry, v. 56, no. 1, p. 48-54, https://doi.org/10.1021/ac00265a014.","productDescription":"7 p.","startPage":"48","endPage":"54","numberOfPages":"7","costCenters":[],"links":[{"id":225866,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"56","issue":"1","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a6ef2e4b0c8380cd7589f","contributors":{"authors":[{"text":"Harnly, J. M.","contributorId":22492,"corporation":false,"usgs":false,"family":"Harnly","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":367397,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kane, Jean S.","contributorId":66544,"corporation":false,"usgs":true,"family":"Kane","given":"Jean S.","affiliations":[],"preferred":false,"id":367398,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014005,"text":"70014005 - 1984 - Carbon isotope fractionation of sapropelic organic matter during early diagenesis","interactions":[],"lastModifiedDate":"2025-03-17T16:09:54.078708","indexId":"70014005","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":"Carbon isotope fractionation of sapropelic organic matter during early diagenesis","docAbstract":"Study of an algal, sapropelic sediment from Mangrove Lake, Bermuda shows that the mass balance of carbon and stable carbon isotopes in the major organic constituents is accounted for by a relatively straightforward model of selective preservation during diagenesis. The loss of 13C-enriched carbohydrates is the principal factor controlling the intermolecular mass balance of 13C in the sapropel. Results indicate that labile components are decomposed leaving as a residual concentrate in the sediment an insoluble humic substance that may be an original biochemical component of algae and associated bacteria. An overall decrease of up to about 4‰ in the δ 13C values of the organic matter is observed as a result of early diagenesis.
","language":"English","publisher":"Elsevier","doi":"10.1016/0146-6380(84)90016-0","usgsCitation":"Spiker, E.C., and Hatcher, P.G., 1984, Carbon isotope fractionation of sapropelic organic matter during early diagenesis: Organic Geochemistry, v. 5, no. 4, p. 283-290, https://doi.org/10.1016/0146-6380(84)90016-0.","productDescription":"8 p.","startPage":"283","endPage":"290","costCenters":[],"links":[{"id":225550,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Bermuda","otherGeospatial":"Mangrove Lake","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -64.74165211543514,\n 32.345696412628826\n ],\n [\n -64.74165211543514,\n 32.32102617325248\n ],\n [\n -64.70426092644328,\n 32.32102617325248\n ],\n [\n -64.70426092644328,\n 32.345696412628826\n ],\n [\n -64.74165211543514,\n 32.345696412628826\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"5","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f366e4b0c8380cd4b7a0","contributors":{"authors":[{"text":"Spiker, Elliott C.","contributorId":50174,"corporation":false,"usgs":true,"family":"Spiker","given":"Elliott","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":367355,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hatcher, Patrick G.","contributorId":93625,"corporation":false,"usgs":true,"family":"Hatcher","given":"Patrick","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":367354,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70014000,"text":"70014000 - 1984 - Glacier mass balance and runoff research in the U.S.A.","interactions":[],"lastModifiedDate":"2023-12-19T00:49:29.152399","indexId":"70014000","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1767,"text":"Geografiska Annaler, Series A","active":true,"publicationSubtype":{"id":10}},"title":"Glacier mass balance and runoff research in the U.S.A.","docAbstract":"Research on glacier mass balance began in the U.S.A. about 50 years ago. More complete studies of climate, snow and ice balance, and the hydrology of glaciers were initiated for the IGY in 1957 and the IHD in 1966. Investigations included the magnitude and geographic distribution of normal mass balance processes and unusual phenomena such as out-bursting, accumulation of ice by freezing of water in firn, and ablation of glacier ice by volcanic activity and by calving. Glacier size has been found not to be a simple function of climate as is widely imagined. Glaciers can increase with a warming of climate and can shrink due to calving instability mechanisms. Numerical modeling of glacier balance and runoff have appeared in the past decade only. Glacier research has also produced a new understanding of the nation's climate, water resources, and flood hazards because glaciers exist in very moist rather than very cold climates and produce very high runoff rates.
The oxygen fugacity (fO2) of the Earth's upper mantle appears to lie somewhat above that of the iron-wüstite buffer, its fO2 is assumed to have been similar to the present value at the time of core formation. In the upper mantle, the Fe-rich liquid protocore that would form under such conditions of fO2 at elevated temperatures would lie predominantly in the system Fe-S-O. Distribution coefficients for Co, Cu, Ni, Ir, Au, Ir, W, Re, Mo, Ag and Ga between such liquids and basalt are known and minimum values are known for Ge. From these coefficients, upper mantle abundances for the above elements can be calculated by assuming cosmic abundances for the whole Earth and equilibrium between the Fe-S-O protocore and upper mantle. These calculated abundances are surprisingly close to presently known upper mantle abundances; agreements are within a factor of 5, except for Cu, W, and Mo. Therefore, siderophile element abundances in the upper mantle based on known distribution coefficients do not demand a late-stage meteoritic bombardment, and a protocore formed from the upper mantle containing S and O seems likely.
As upper mantle abundances fit a local equilibrium model, then either the upper mantle has not been mixed with the rest of the mantle since core formation, or else partition coefficients between protocore and mantle were similar for the whole mantle regardless of P\">P, T\">T, and fO2. The latter possibility seems unlikely over such a P-T\">P-T range.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(84)90054-1","issn":"00167037","usgsCitation":"Brett, R., 1984, Chemical equilibration of the Earth's core and upper mantle: Geochimica et Cosmochimica Acta, v. 48, no. 6, p. 1183-1188, https://doi.org/10.1016/0016-7037(84)90054-1.","productDescription":"6 p.","startPage":"1183","endPage":"1188","numberOfPages":"6","costCenters":[],"links":[{"id":225742,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f57ae4b0c8380cd4c246","contributors":{"authors":[{"text":"Brett, R.","contributorId":106632,"corporation":false,"usgs":true,"family":"Brett","given":"R.","email":"","affiliations":[],"preferred":false,"id":367219,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70140593,"text":"70140593 - 1984 - The relationship of Landsat digital data to the properties of Arizona rangelands","interactions":[],"lastModifiedDate":"2019-12-10T14:51:18","indexId":"70140593","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3420,"text":"Soil Science Society of America Journal","active":true,"publicationSubtype":{"id":10}},"title":"The relationship of Landsat digital data to the properties of Arizona rangelands","docAbstract":"Pedon descriptions, vegetation transect information, and Landsat digital data were obtained for 110 sites on the Tonto National Forest in central Arizona. Using the field and satellite data, 33 variables were evaluated and prediction models were generated using stepwise multiple regression techniques. The following six factors explained 84% of the variability within the sum of the values for the four Landsat spectral bands: sum of brush and forest crown densities, elevation, surface color, rock type, cobbles on the surface of the site, and grass cover. Seven factors explained 81% of the variability for the ratio of Bands 4 plus 5 to Bands 6 plus 7: percent clay in the surface horizon, percent fragments > 2 mm in the surface horizon, the sum of forest and brush crown densities, pH of the surface horizon, color of the surface horizon, litter cover, and site aspect.
","language":"English","publisher":"Soil Science Society of America","doi":"10.2136/sssaj1984.03615995004800060026x","usgsCitation":"Horvath, E.H., Post, D.F., and Kelsey, J.B., 1984, The relationship of Landsat digital data to the properties of Arizona rangelands: Soil Science Society of America Journal, v. 48, no. 6, p. 1331-1334, https://doi.org/10.2136/sssaj1984.03615995004800060026x.","productDescription":"4 p.","startPage":"1331","endPage":"1334","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":297879,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"Tonto National Forest","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.8243408203125,\n 33.50475906922609\n ],\n [\n -111.016845703125,\n 33.50475906922609\n ],\n [\n -111.016845703125,\n 34.025347738147936\n ],\n [\n -111.8243408203125,\n 34.025347738147936\n ],\n [\n -111.8243408203125,\n 33.50475906922609\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"48","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54dd2c70e4b08de9379b37ef","contributors":{"authors":[{"text":"Horvath, Emil H.","contributorId":76306,"corporation":false,"usgs":true,"family":"Horvath","given":"Emil","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":540215,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Post, D. F.","contributorId":139149,"corporation":false,"usgs":false,"family":"Post","given":"D.","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":540216,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kelsey, J. B.","contributorId":139150,"corporation":false,"usgs":false,"family":"Kelsey","given":"J.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":540217,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70014056,"text":"70014056 - 1984 - Illinois basin coal fly ashes. 2. Equilibria relationships and qualitative modeling of ash-water reactions","interactions":[],"lastModifiedDate":"2023-10-19T17:23:51.421075","indexId":"70014056","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Illinois basin coal fly ashes. 2. Equilibria relationships and qualitative modeling of ash-water reactions","docAbstract":"No abstract available.
","language":"English","publisher":"American Chemical Society","doi":"10.1021/es00128a004","issn":"0013936X","usgsCitation":"Roy, W.R., and Griffin, R.A., 1984, Illinois basin coal fly ashes. 2. Equilibria relationships and qualitative modeling of ash-water reactions: Environmental Science & Technology, v. 18, no. 10, p. 739-742, https://doi.org/10.1021/es00128a004.","productDescription":"4 p.","startPage":"739","endPage":"742","costCenters":[],"links":[{"id":225292,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Illinois, Indiana, Kentucky, Missouri, Tennessee","otherGeospatial":"Illinois Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -90.94649110420269,\n 40.945533770994814\n ],\n [\n -91.01923715797412,\n 40.712913517710376\n ],\n [\n -91.22300927118468,\n 40.47071651056973\n ],\n [\n -91.41792172729808,\n 40.222918700669254\n ],\n [\n -91.28502687085656,\n 39.7681702017654\n ],\n [\n -90.79774573057107,\n 39.45420363658053\n ],\n [\n -90.62941224574531,\n 39.25553699851744\n ],\n [\n -90.55853498897685,\n 38.959923461105575\n ],\n [\n -90.328183904478,\n 38.46910799598123\n ],\n [\n -90.3016049331897,\n 38.163251672370905\n ],\n [\n -89.92949933515392,\n 37.73709284258358\n ],\n [\n -89.47765682325267,\n 37.30141954814219\n ],\n [\n -88.45879625720158,\n 36.771003683292534\n ],\n [\n -88.06128362363084,\n 36.46534298077414\n ],\n [\n -87.41452865561605,\n 36.2584404443587\n ],\n [\n -86.79435265888903,\n 36.17266480846129\n ],\n [\n -86.20961529054678,\n 36.12974173785966\n ],\n [\n -85.79321140703031,\n 36.20126713508451\n ],\n [\n -85.35908820932148,\n 36.52232268256964\n ],\n [\n -84.93382466870852,\n 36.87040741796726\n ],\n [\n -84.64145598453713,\n 36.99080289010317\n ],\n [\n -84.66803495582546,\n 37.329715216866006\n ],\n [\n -84.8452280977477,\n 37.50562959256645\n ],\n [\n -85.26163198126414,\n 37.73019645188518\n ],\n [\n -85.3945268377057,\n 37.98202253429302\n ],\n [\n -85.67803586478078,\n 38.29825431846086\n ],\n [\n -85.74891312154978,\n 39.37479374147429\n ],\n [\n -86.07672043410541,\n 40.19178310943852\n ],\n [\n -86.68803677373594,\n 40.56298939507266\n ],\n [\n -87.52666346510904,\n 40.831671960797564\n ],\n [\n -87.7215759212231,\n 40.9388414414546\n ],\n [\n -88.2442956898928,\n 41.29925627633486\n ],\n [\n -88.50122574567995,\n 41.65769036462953\n ],\n [\n -89.06824379982982,\n 41.86915981369222\n ],\n [\n -89.50236699753867,\n 41.8757570021325\n ],\n [\n -89.99850779492006,\n 41.743683882396056\n ],\n [\n -90.45035030682129,\n 41.55169435710624\n ],\n [\n -90.62754344874298,\n 41.47872111301615\n ],\n [\n -91.04394733225999,\n 41.42559799520316\n ],\n [\n -91.12368424612491,\n 41.23932460147384\n ],\n [\n -90.9553507612986,\n 41.10594618764017\n ],\n [\n -90.94649110420269,\n 40.945533770994814\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"18","issue":"10","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505a386de4b0c8380cd61579","contributors":{"authors":[{"text":"Roy, William R.","contributorId":45454,"corporation":false,"usgs":true,"family":"Roy","given":"William","middleInitial":"R.","affiliations":[],"preferred":false,"id":367464,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Griffin, R. A.","contributorId":46211,"corporation":false,"usgs":true,"family":"Griffin","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":367465,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5221928,"text":"5221928 - 1984 - Effects of permanent trap response in capture probability on Jolly-Seber capture-recapture model estimates","interactions":[],"lastModifiedDate":"2024-11-06T15:34:40.871738","indexId":"5221928","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Effects of permanent trap response in capture probability on Jolly-Seber capture-recapture model estimates","docAbstract":"No abstract available.
","language":"English","publisher":"Wiley","doi":"10.2307/3808491","usgsCitation":"Nichols, J.D., Hines, J.E., and Pollock, K.H., 1984, Effects of permanent trap response in capture probability on Jolly-Seber capture-recapture model estimates: Journal of Wildlife Management, v. 48, no. 1, p. 289-294, https://doi.org/10.2307/3808491.","productDescription":"6 p.","startPage":"289","endPage":"294","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":197353,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db611a88","contributors":{"authors":[{"text":"Nichols, James D. 0000-0002-7631-2890 jnichols@usgs.gov","orcid":"https://orcid.org/0000-0002-7631-2890","contributorId":140652,"corporation":false,"usgs":true,"family":"Nichols","given":"James","email":"jnichols@usgs.gov","middleInitial":"D.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":335049,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hines, James E. 0000-0001-5478-7230 jhines@usgs.gov","orcid":"https://orcid.org/0000-0001-5478-7230","contributorId":146530,"corporation":false,"usgs":true,"family":"Hines","given":"James","email":"jhines@usgs.gov","middleInitial":"E.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":335050,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pollock, Kenneth H.","contributorId":8590,"corporation":false,"usgs":false,"family":"Pollock","given":"Kenneth","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":335051,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013604,"text":"70013604 - 1984 - Modification of wave-cut and faulting-controlled landforms","interactions":[],"lastModifiedDate":"2024-06-27T16:24:22.78454","indexId":"70013604","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":"Modification of wave-cut and faulting-controlled landforms","docAbstract":"From a casual observation that the form of degraded fault scarps resembles the error function, this investigation proceeds through an elementary diffusion equation representation of landform evolution to the application of the resulting equations to the modern topography of scarplike landforms. The morphologic observations can be analyzed either in the form of one or more cross-strike elevation profiles or in the form of the slope-offset plot, a point plot of maximum scarp slope versus scarp offset. Working with either or both of these data representations for nine geologic structures, which range in age from 3 to 400 ka B.P. and in offset from 1 to 50 m, we apply analytical solutions for the vertical initial value scarp, the vertical continuous offset scarp, and the finite slope, initial value scarp. The model calculations are intrinsically ambiguous, yielding as the final answer only the product κt (in the case of the initial value problem) or the product κA−1 (in the case of the repeated faulting problem); here t is the age of a single scarp-forming event, 2A is the vertical slip rate, and κ is the “mass diffusivity.” A single profile across three sea cliffs along the Santa Cruz, California, coast is analyzed as three separate initial value problems. A reasonably constrained age for the sea cliff standing above the Highway 1 platform returns κ = 11 GKG (1 GKG = 1 m2/ka). With this κ, we can date the two older sea cliffs. In fact, we do the converse: age estimates for these two older sea cliffs based on a uniform rate of uplift both yield the same κ as for the lower sea cliff. We treat a single profile of the Raymond fault in Pasadena/San Marino in terms of the repeated faulting problem; for it the uplift rate of R. Crook and others yields κ = 16 GKG. The very substantial preexisting offset across the Raymond fault must have been buried/leveled some 230 ka B.P., when the modern topography began to form. Our analysis of the Lake Bonneville shoreline scarps reveals a dependence of κt on 2a, suggestive of nonlinear modification processes. This appearance is treated with the finite slope initial value scarp model to determine κ=1.1 GKG for the Lake Bonneville shoreline scarps. The suggestion of M. N. Machette that approximately 100,000-year-old, meter-high scarps are “unobservable” in weakly consolidated alluvial terranes of the Basin and Range and Rio Grande Rift Valley provinces can be formulated as κ ≳ 1 GKG. The coincidence between this inequality and the Lake Bonneville shoreline κ is striking, and it suggests that the value of κ = 1 GKG may be generally applicable, as a good first approximation, to the modification of alluvial terranes within the semiarid regions of the western United States. The Lake Bonneville shoreline κ is the basis for dating four sets of fault scarps in west-central Utah. The Drum Mountains fault scarps can be modeled in several different circumstances, but the most likely interpretation is that these fault scarps formed as the result of a single episode of normal faulting 3.6 to 5.7 ka B.P. The younger age is associated with quite low initial slope angles (25°). The other three sets of fault scarps show no evidence for finite initial value slopes. Fault scarps along the eastern base of the Fish Springs Range are very young, 3 ka B.P. We estimate the age of fault scarps along the western flank of the Oquirrh Mountains to be 32 ka B.P., which meets the weak geologic constraint that they be older than the Lake Bonneville shoreline. Fault scarps along the northeastern margin of the Sheeprock Mountains are even older, 53 ka B.P. An intriguing consequence of our single-event analysis of these scarps is that an 11.5-m offset occurred in a single earthquake.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB089iB07p05771","issn":"01480227","usgsCitation":"Hanks, T.C., Bucknam, R., Lajoie, K.R., and Wallace, R.E., 1984, Modification of wave-cut and faulting-controlled landforms: Journal of Geophysical Research Solid Earth, v. 89, no. B7, p. 5771-5790, https://doi.org/10.1029/JB089iB07p05771.","productDescription":"20 p.","startPage":"5771","endPage":"5790","numberOfPages":"20","costCenters":[],"links":[{"id":219865,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"89","issue":"B7","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a5cb4e4b0c8380cd6feb9","contributors":{"authors":[{"text":"Hanks, Thomas C.","contributorId":35763,"corporation":false,"usgs":true,"family":"Hanks","given":"Thomas","middleInitial":"C.","affiliations":[],"preferred":false,"id":366464,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bucknam, R.C.","contributorId":35744,"corporation":false,"usgs":true,"family":"Bucknam","given":"R.C.","affiliations":[],"preferred":false,"id":366463,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lajoie, K. R.","contributorId":6828,"corporation":false,"usgs":true,"family":"Lajoie","given":"K.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":366462,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wallace, R. E.","contributorId":6823,"corporation":false,"usgs":true,"family":"Wallace","given":"R.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":366461,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70013144,"text":"70013144 - 1984 - Catastrophic isotopic modification of rhyolitic magma at times of caldera subsidence, Yellowstone Plateau Volcanic Field","interactions":[],"lastModifiedDate":"2024-06-27T16:53:21.29494","indexId":"70013144","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":"Catastrophic isotopic modification of rhyolitic magma at times of caldera subsidence, Yellowstone Plateau Volcanic Field","docAbstract":"The Yellowstone Plateau volcanic field has undergone repeated eruption of rhyolitic magma strongly depleted in 18O. Large calderas subsided 2.0, 1.3, and 0.6 Ma ago, on eruption of ash flow sheets that represent at least 2500, 280, and 1000 km3 of zoned magma. More than 60 other rhyolite lavas and tuffs permit reconstruction of the long-term chemical and isotopic evolution of the silicic system. Narrow δ18O ranges in the ash flow sheets contrast with wide δ18O variations in postcaldera lavas of the first and third caldera cycles. Earliest postcollapse lavas are 3 to 6‰ lighter than the preceding ash flow sheets. The O18 depletions were short-lived events that immediately followed caldera subsidence; hundreds of cubic kilometers of magma were drastically 18O depleted and thousands were depleted by 1–2‰. Sequences of postcaldera lavas record partial recovery toward precaldera δ18O values; secular trends between collapse events thus reflect gradual reenrichment of the roofmost magma in δ18O. Much of the subcaldera reservoir was affected, because lavas that erupted as far apart as 115 km reflect the same pattern of depletion and partial recovery. Contemporaneous extracaldera rhyolites have the highest δ18O values in the volcanic field and show no effects of the repeated depletions. Sr and Pb isotope ratios of intracaldera rhyolites jump to more radiogenic values at times of caldera formation and show a longterm zigzag pattern like that of δ18O. Although some contamination by foundering roof rocks seenis to be required, water was probably the predominant contaminant. Even if roof rocks had been strongly depleted in O18 before engulfment, their assimilation would have been far from sufficient to account for the large O18 shift. The low- O18 lavas contain no xenocrysts and show no trace element or phenocryst evidence of massive contamination. Their Fe-Ti-oxide temperatures indicate no cooling relative to the caldera-forming ash flow magma, and their whole-rock, glass, and phenoeryst chemistry suggests compositional continuity with the ash flow sequence. Oxygen exchange between the magma and a mass of low-O18 water greatly exceeding solubility limits may require (1) recurrent explosive activity to sustain access and mixing of water with the magma and (2) convection of the magma reservoir to prevent local saturation.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB089iB10p08339","issn":"01480227","usgsCitation":"Hildreth, W., Christiansen, R., and O’Neil, J.R., 1984, Catastrophic isotopic modification of rhyolitic magma at times of caldera subsidence, Yellowstone Plateau Volcanic Field: Journal of Geophysical Research Solid Earth, v. 89, no. B10, p. 8339-8369, https://doi.org/10.1029/JB089iB10p08339.","productDescription":"31 p.","startPage":"8339","endPage":"8369","numberOfPages":"31","costCenters":[],"links":[{"id":220517,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"89","issue":"B10","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5059f3c9e4b0c8380cd4b961","contributors":{"authors":[{"text":"Hildreth, W. 0000-0002-7925-4251","orcid":"https://orcid.org/0000-0002-7925-4251","contributorId":100487,"corporation":false,"usgs":true,"family":"Hildreth","given":"W.","affiliations":[],"preferred":false,"id":365396,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christiansen, R.L. 0000-0002-8017-3918","orcid":"https://orcid.org/0000-0002-8017-3918","contributorId":25565,"corporation":false,"usgs":true,"family":"Christiansen","given":"R.L.","affiliations":[],"preferred":false,"id":365394,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"O’Neil, J. R.","contributorId":69633,"corporation":false,"usgs":true,"family":"O’Neil","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":365395,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013543,"text":"70013543 - 1984 - HYDRAULIC RESEARCH - U. S. GEOLOGICAL SURVEY.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:39","indexId":"70013543","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"HYDRAULIC RESEARCH - U. S. GEOLOGICAL SURVEY.","docAbstract":"Research at the Gulf Coast Hydroscience Center near Bay St. Louis, Mississippi, is being conducted in an indoor laboratory, and an outdoor laboratory. Much of the current indoor lab research is directed at improved methods of measuring flow. A towing tank and submerged jet tank are used for calibrating velocity meters. The outdoor laboratory consists of a flood-plain simulation facility. Much emphasis has been placed on applying results to the development of numerical simulation models. Laboratory data are used to develop and validate the models. These models are also validated with actual field data. Various algorithms for one- and two-dimensional flow and transport models based on finite difference and finite element schemes are being developed.","conferenceTitle":"Water for Resource Development, Proceedings of the Conference.","conferenceLocation":"Coeur D'Alene, ID, USA","language":"English","publisher":"ASCE","publisherLocation":"New York, NY, USA","isbn":"0872624099","usgsCitation":"Schneider, V.R., 1984, HYDRAULIC RESEARCH - U. S. GEOLOGICAL SURVEY., Water for Resource Development, Proceedings of the Conference., Coeur D'Alene, ID, USA.","startPage":"853","costCenters":[],"links":[{"id":220043,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2e8ae4b0c8380cd5c634","contributors":{"editors":[{"text":"Schreiber David L.","contributorId":128421,"corporation":true,"usgs":false,"organization":"Schreiber David L.","id":536275,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Schneider, Verne R. vrschnei@usgs.gov","contributorId":279,"corporation":false,"usgs":true,"family":"Schneider","given":"Verne","email":"vrschnei@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":366308,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70012833,"text":"70012833 - 1984 - Modeling crater topography and albedo from monoscopic Viking orbiter images: 1. Methodology","interactions":[],"lastModifiedDate":"2024-06-28T16:06:58.472398","indexId":"70012833","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":"Modeling crater topography and albedo from monoscopic Viking orbiter images: 1. Methodology","docAbstract":"A new photoclinometric technique for extraction of topographic data from single planetary images is presented that overcomes many previous limitations of photoclinometry. The procedure fully compensates for oblique viewing geometry prevalent in spacecraft images. Albedo variations have been one of the most serious obstacles in the application of photoclinometry to planetary surfaces. This problem is overcome in the topographic solution by simultaneously utilizing brightness data from a pair of profiles; both segments are assumed to have the same topographic and albedo variations along their lengths. Profile directions are chosen where the orientation of downslope or upslope is obvious, thus resolving a major ambiguity in photoclinometry. This requirement is particularly easy to satisfy for craters and not very difficult for many irregular features. An additional procedure is presented that eliminates even the requirement of topographic symmetry along the pair of profiles. If two profiles have the same relief but their shapes are very different, another method can be used in an iterative process to derive topographic profiles; however, this procedure does, require that the albedo not vary along the profiles. Test results indicate that both procedures have an accuracy and precision of approximately 2° for slopes of typical bowl-shaped craters, which translates to approximately 5% for depths.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB089iB11p09449","issn":"01480227","usgsCitation":"Davis, P.A., and Soderblom, L., 1984, Modeling crater topography and albedo from monoscopic Viking orbiter images: 1. Methodology: Journal of Geophysical Research Solid Earth, v. 89, no. B11, p. 9449-9457, https://doi.org/10.1029/JB089iB11p09449.","productDescription":"9 p.","startPage":"9449","endPage":"9457","numberOfPages":"9","costCenters":[],"links":[{"id":480212,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/jb089ib11p09449","text":"Publisher Index Page"},{"id":222041,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"89","issue":"B11","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a5bebe4b0c8380cd6f8ce","contributors":{"authors":[{"text":"Davis, P. A.","contributorId":74021,"corporation":false,"usgs":true,"family":"Davis","given":"P.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":364636,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Soderblom, L.A. 0000-0002-0917-853X","orcid":"https://orcid.org/0000-0002-0917-853X","contributorId":6139,"corporation":false,"usgs":true,"family":"Soderblom","given":"L.A.","affiliations":[],"preferred":false,"id":364635,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013794,"text":"70013794 - 1984 - Deformation of clinopyroxenite: Evidence for a transition in flow mechanisms and semibrittle behavior","interactions":[],"lastModifiedDate":"2024-06-27T16:12:36.677414","indexId":"70013794","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":"Deformation of clinopyroxenite: Evidence for a transition in flow mechanisms and semibrittle behavior","docAbstract":"A systematic suite of constant strain rate experiments was performed on a vacuum-dried, high-purity, fine-grained clinopyroxenite using NaCl and NaF as confining media in a Griggs-type piston-cylinder apparatus. The experiments were carried out over a range of temperatures from 400° to 1100°C, strain rates from 10−3 to 10−7 s−1, and confining pressures from 170 to 1990 MPa. At T = 600°C and ![\"urn:x-wiley:01480227:media:jgrb4737:grb4737-math-0001\"](\"https://agupubs.onlinelibrary.wiley.com/cms/asset/4d5ec8f9-7c50-4032-a1dc-295d1c66c0c4/grb4737-math-0001.gif\")
= 1.1 × 10−5 s−1, three modes of deformation occur with increasing confining pressure: (1) Macroscopic faulting associated with low strength and stress drops, (2) stable microfracturing and plastic deformation associated with pressure-dependent strength, and (3) plastic deformation (mechanical twinning and 〈001〉 slip) with high strengths which are insensitive to pressure variations. In experiments at P = 1500 MPa, within this high-pressure plastic mode, two regimes of flow are clearly defined. At low to intermediate temperatures and high strain rates, flow strengths are insensitive to changes in strain rate and temperature. Optical and transmission electron microscope observations indicate that plastic strain is accomplished by mechanical twinning on (100) and (001) and by {100}〈001〉 slip. In contrast, at high temperatures and low strain rates the flow stress is strongly dependent on temperature and strain rate. Specimens deformed in this regime show evidence of recovery, multiple slip, and recrystallization; and plastic strain is much more homogeneous. The flow data within each regime can be satisfactorily fit to thermally activated power laws. In the low-temperature regime n (the stress exponent) = 83 ± 16 and E* (the activation energy for flow) = 220 ± 40 kJ/mol. We believe that these parameters reflect flow dominated by the kinetics of dislocation glide associated with mechanical twinning and (100)〈001〉 slip. In the high-temperature regime, n = 5.3 ± 1.1 and E* = 380 ± 30 kJ/mol. These parameters describe creep by multiple slip accompanied by increased rates of diffusion and recovery.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB089iB05p03177","issn":"01480227","usgsCitation":"Kirby, S.H., and Kronenberg, A.K., 1984, Deformation of clinopyroxenite: Evidence for a transition in flow mechanisms and semibrittle behavior: Journal of Geophysical Research Solid Earth, v. 89, no. B5, p. 3177-3192, https://doi.org/10.1029/JB089iB05p03177.","productDescription":"16 p.","startPage":"3177","endPage":"3192","numberOfPages":"16","costCenters":[],"links":[{"id":220395,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"89","issue":"B5","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5059fe49e4b0c8380cd4ec3f","contributors":{"authors":[{"text":"Kirby, S. H.","contributorId":51721,"corporation":false,"usgs":true,"family":"Kirby","given":"S.","middleInitial":"H.","affiliations":[],"preferred":false,"id":366882,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kronenberg, A. K.","contributorId":94787,"corporation":false,"usgs":false,"family":"Kronenberg","given":"A.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":366883,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013716,"text":"70013716 - 1984 - Regional investigations of soil and overburden analysis and plant uptake of metals","interactions":[],"lastModifiedDate":"2012-03-12T17:18:39","indexId":"70013716","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2754,"text":"Minerals and the Environment","active":true,"publicationSubtype":{"id":10}},"title":"Regional investigations of soil and overburden analysis and plant uptake of metals","docAbstract":"Regional studies on the bioavailability of metals at native and disturbed sites were conducted over the past seven years by the USGS. The work was concentrated in the Fort Union, Powder River, and Green River coal resource regions where measures of extractable metals in soils were found to have limited use in predicting metal levels in plants. Correlations between Cu, Fe, and Zn in plants and extractable (DTPA, EDTA, and oxalate) or total levels in native A- and C-horizons of soil were occasionally significant. A simple linear model is generally not adequate, however, in estimating element uptake by plants. Prediction capabilities were improved when a number of soil chemical and physical parameters were included as independent variables in a stepwise linear multiple regression analysis; however, never more than 54% of the total variability in the data was explained by the equations for these metals. Soil pH was the most important variable relating soil chemistry to plant chemistry. This relation was always positive and apparently a response to soil levels of metal carbonates and not Fe and Mn oxides. Studies that compared the metal uptake by rehabilitation species to extractable (DTPA) metal levels in mice soils produced similar results. ?? 1984 Science and Technology Letters.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Minerals and the Environment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF02043989","issn":"01427245","usgsCitation":"Gough, L.P., 1984, Regional investigations of soil and overburden analysis and plant uptake of metals: Minerals and the Environment, v. 6, no. 3, p. 105-110, https://doi.org/10.1007/BF02043989.","startPage":"105","endPage":"110","numberOfPages":"6","costCenters":[],"links":[{"id":204982,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF02043989"},{"id":219875,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a534e4b0e8fec6cdbd7f","contributors":{"authors":[{"text":"Gough, L. P.","contributorId":64198,"corporation":false,"usgs":true,"family":"Gough","given":"L.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":366698,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013245,"text":"70013245 - 1984 - Complexation of trace metals by adsorbed natural organic matter","interactions":[],"lastModifiedDate":"2020-01-19T11:49:28","indexId":"70013245","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Complexation of trace metals by adsorbed natural organic matter","docAbstract":"The adsorption behavior and solution speciation of Cu(II) and Cd(II) were studied in model systems containing colloidal alumina particles and dissolved natural organic matter. At equilibrium a significant fraction of the alumina surface was covered by adsorbed organic matter. Cu(II) was partitioned primarily between the surface-bound organic matter and dissolved Cu-organic complexes in the aqueous phase. Complexation of Cu2+ with the functional groups of adsorbed organic matter was stronger than complexation with uncovered alumina surface hydroxyls. It is shown that the complexation of Cu(II) by adsorbed organic matter can be described by an apparent stability constant approximately equal to the value found for solution phase equilibria. In contrast, Cd(II) adsorption was not significantly affected by the presence of organic matter at the surface, due to weak complex formation with the organic ligands. The results demonstrate that general models of trace element partitioning in natural waters must consider the presence of adsorbed organic matter.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(84)90095-4","issn":"00167037","usgsCitation":"Davis, J., 1984, Complexation of trace metals by adsorbed natural organic matter: Geochimica et Cosmochimica Acta, v. 48, no. 4, p. 679-691, https://doi.org/10.1016/0016-7037(84)90095-4.","productDescription":"13 p.","startPage":"679","endPage":"691","numberOfPages":"13","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":220415,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f911e4b0c8380cd4d3fb","contributors":{"authors":[{"text":"Davis, J.A.","contributorId":71694,"corporation":false,"usgs":true,"family":"Davis","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":365630,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013143,"text":"70013143 - 1984 - Uranium mineralization in response to regional metamorphism at Lilljuthatten, Sweden","interactions":[],"lastModifiedDate":"2024-01-08T23:59:30.282543","indexId":"70013143","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":"Uranium mineralization in response to regional metamorphism at Lilljuthatten, Sweden","docAbstract":"Analyses of six mineralized and five nonmineralized whole-rock drill core samples from the uranium deposit at Lilljuthatten yield a lead-lead isochron age of 420 + or - 1 m.y. This age corresponds to the last stage of the Caledonian Orogeny. None of the isotopic systems examined have completely retained the intrusive age of the Olden Granite, but data for several systems suggest an age of approximately 1,650 m.y. Indications that Caledonian hydrothermal activity strongly affected most of the Olden Granite. A model for the genesis of the ore deposit is proposed as follows: (1) derivation of a highly evolved granite by partial melting of crustal materials about 1,650 m.y. ago; (2) pervasive hydrothermal alteration and fracturing of the granite in response to the Caledonian Orogeny approximately 420 m.y. ago; (3) mobilization of uranium and lead in response to circulation of heated fluids; (4) precipitation of these elements in open fractures; and (5) recent modification of the Caledonian uranium distribution as a result of exposure to near-surface conditions.
","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.79.3.509","issn":"03610128","usgsCitation":"Stuckless, J., and Troeng, B., 1984, Uranium mineralization in response to regional metamorphism at Lilljuthatten, Sweden: Economic Geology, v. 79, no. 3, p. 509-528, https://doi.org/10.2113/gsecongeo.79.3.509.","productDescription":"20 p.","startPage":"509","endPage":"528","numberOfPages":"20","costCenters":[],"links":[{"id":220516,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"3","noUsgsAuthors":false,"publicationDate":"1984-05-01","publicationStatus":"PW","scienceBaseUri":"505bbdc2e4b08c986b3291e5","contributors":{"authors":[{"text":"Stuckless, J. S.","contributorId":6060,"corporation":false,"usgs":true,"family":"Stuckless","given":"J. S.","affiliations":[],"preferred":false,"id":365392,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Troeng, B.","contributorId":56373,"corporation":false,"usgs":true,"family":"Troeng","given":"B.","email":"","affiliations":[],"preferred":false,"id":365393,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013260,"text":"70013260 - 1984 - Ice and debris in the fretted terrain, Mars","interactions":[],"lastModifiedDate":"2018-10-23T11:19:01","indexId":"70013260","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2312,"text":"Journal of Geophysical Research","active":true,"publicationSubtype":{"id":10}},"title":"Ice and debris in the fretted terrain, Mars","docAbstract":"Viking moderate- and high-resolution images along the northern highland margin were studied monoscopically and stereoscopically to contribute to an understanding of the development of fretted terrain. Results support the hypothesis that the fretting process involved flow facilitated by interstitial ice. The process apparently continued for a long period of time, and debris-apron formation shaped the fretted terrain in the past as well as the present. Interstitial ice in debris aprons is most likely derived from ground ice obtained by sapping or scarp collapse. Debris aprons could have been removed by sublimation if they consisted mostly of ice, or by deflation if they consisted mostly of debris. To remove the debris, wind erosion was either very intense early in martian history, or was intermittent, perhaps owing to climatic cycles.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"conferenceTitle":"Proc of the 14th Lunar and Planet Sci Conf","conferenceDate":"14 March 1984 through 15 March 1984","conferenceLocation":"Houston, TX, USA","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB089iS02p0B409","issn":"00221406","isbn":"0875902332","usgsCitation":"Lucchitta, B.K., 1984, Ice and debris in the fretted terrain, Mars: Journal of Geophysical Research, v. 89, no. S02, p. 409-418, https://doi.org/10.1029/JB089iS02p0B409.","productDescription":"10 p.","startPage":"409","endPage":"418","numberOfPages":"10","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":220635,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"89","issue":"S02","noUsgsAuthors":false,"publicationDate":"2012-09-21","publicationStatus":"PW","scienceBaseUri":"505a37c7e4b0c8380cd61159","contributors":{"authors":[{"text":"Lucchitta, Baerbel K. blucchitta@usgs.gov","contributorId":3649,"corporation":false,"usgs":true,"family":"Lucchitta","given":"Baerbel","email":"blucchitta@usgs.gov","middleInitial":"K.","affiliations":[],"preferred":true,"id":365669,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
]}