{"pageNumber":"1513","pageRowStart":"37800","pageSize":"25","recordCount":41031,"records":[{"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}]}}
,{"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":"<p><span>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.</span></p>","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":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":"<p>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.&nbsp;</p>","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":70013205,"text":"70013205 - 1984 - Dynamics of a geothermal field traced by noble gases: Cerro Prieto, Mexico","interactions":[],"lastModifiedDate":"2013-02-24T14:10:56","indexId":"70013205","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":"Dynamics of a geothermal field traced by noble gases: Cerro Prieto, Mexico","docAbstract":"Noble gases have been measured mass spectrometrically in samples collected during 1977 from producing wells at Cerro Prieto. Positive correlations between concentrations of radiogenic (He and 40Ar) and atmospheric noble gases (Ne, Ar and Kr) suggest the following dynamic model: the geothermal fluids originated from meteoric water that penetrated to more than 2500 m depth (below the level of first boiling) and mixed with radiogenic He and 40Ar formed in the aquifer rocks. Subsequently, small amounts of steam were lost by a Raleigh process (0 - 30%) and mixing with shallow cold water occurred (0 - 30%). Noble gases are sensitive tracers of boiling in the initial stages of 0 - 3% steam separation and complement other tracers, such as C1 or temperature, which are effective only beyond this range. ?? 1984.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geothermics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0375-6505(84)90009-9","issn":"03756505","usgsCitation":"Mazor, E., and Truesdell, A., 1984, Dynamics of a geothermal field traced by noble gases: Cerro Prieto, Mexico: Geothermics, v. 13, no. 1-2, p. 91-102, https://doi.org/10.1016/0375-6505(84)90009-9.","startPage":"91","endPage":"102","numberOfPages":"12","costCenters":[],"links":[{"id":480549,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://www.osti.gov/biblio/7369384","text":"External Repository"},{"id":268149,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0375-6505(84)90009-9"},{"id":219841,"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":"505a042fe4b0c8380cd50835","contributors":{"authors":[{"text":"Mazor, E.","contributorId":18104,"corporation":false,"usgs":true,"family":"Mazor","given":"E.","email":"","affiliations":[],"preferred":false,"id":365540,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"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":365541,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013556,"text":"70013556 - 1984 - Thermal modeling of Halley's comet","interactions":[],"lastModifiedDate":"2013-02-20T20:51:35","indexId":"70013556","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":661,"text":"Advances in Space Research","active":true,"publicationSubtype":{"id":10}},"title":"Thermal modeling of Halley's comet","docAbstract":"The comet thermal model of Weissman and Kieffer is used to calculate gas production rates and other parameters for the 1986 perihelion passage of Halley's Comet. Gas production estimates are very close to revised pre-perihelion estimates by Newburn based on 1910 observations of Halley; the increase in observed gas production post-perihelion may be explained by a variety of factors. The energy contribution from multiply scattered sunlight and thermal emission by coma dust increases the total energy reaching the Halley nucleus at perihelion by a factor of 2.4. The high obliquity of the Halley nucleus found by Sekanina and Larson may help to explain the asymmetry in Halley's gas production rates around perihelion. ?? 1984.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Advances in Space Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/0273-1177(84)90032-2","issn":"02731177","usgsCitation":"Weissman, P., and Kieffer, H.H., 1984, Thermal modeling of Halley's comet: Advances in Space Research, v. 4, no. 9, p. 221-224, https://doi.org/10.1016/0273-1177(84)90032-2.","startPage":"221","endPage":"224","numberOfPages":"4","costCenters":[],"links":[{"id":220205,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":267877,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0273-1177(84)90032-2"}],"volume":"4","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb24ae4b08c986b3256da","contributors":{"authors":[{"text":"Weissman, P.R.","contributorId":7838,"corporation":false,"usgs":true,"family":"Weissman","given":"P.R.","email":"","affiliations":[],"preferred":false,"id":366333,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kieffer, H. H.","contributorId":40725,"corporation":false,"usgs":false,"family":"Kieffer","given":"H.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":366334,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012821,"text":"70012821 - 1984 - GEOLOGIC APPLICATIONS OF SIDE-LOOKING AIRBORNE RADAR DATA IN THE CENTRAL APPALACHIAN MOUNTAINS.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:03","indexId":"70012821","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"GEOLOGIC APPLICATIONS OF SIDE-LOOKING AIRBORNE RADAR DATA IN THE CENTRAL APPALACHIAN MOUNTAINS.","docAbstract":"Side-looking airborne radar has provided a sufficiently detailed synoptic view of the central Appalachian Mountains that the images give an unparalleled representation of the size and nature of the folds within the Valley and Ridge province. The radar data show that fold wavelengths decrease abruptly south of the region of the Pennsylvania, Maryland, and West Virginia State lines. Concomittantly, this decrease in fold wavelength is accompanied by an increase in both frequency and length of disturbed zones. The model predicted by the combination of the radar images and field observations suggests a broad lateral ramp, perpendicular to the strike of the fold-belt, connecting a deeper decollement level north of the Pennsylvania, Maryland and West Virginia State lines with a shallower decollement to the south. Recently, the first author has located a field example of a lateral ramp approximately one kilometer north of Mathias, West Virginia. This lateral ramp shows an up-to-the-north configuration and the extensions both northwestward and southeastward can be seen on the radar images as a series of cross-strike lineaments.","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":"Pohn, H.A., and Southworth, C.S., 1984, GEOLOGIC APPLICATIONS OF SIDE-LOOKING AIRBORNE RADAR DATA IN THE CENTRAL APPALACHIAN MOUNTAINS., Proceedings of the International Symposium on Remote Sensing of Environment, Third Thematic Conference: Remote Sensing for Exploration Geology., Colorado Springs, CO, USA.","startPage":"349","costCenters":[],"links":[{"id":221849,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a144ee4b0c8380cd549bc","contributors":{"authors":[{"text":"Pohn, Howard A.","contributorId":66681,"corporation":false,"usgs":true,"family":"Pohn","given":"Howard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":364608,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Southworth, C. Scott 0000-0002-7976-7807 ssouthwo@usgs.gov","orcid":"https://orcid.org/0000-0002-7976-7807","contributorId":1608,"corporation":false,"usgs":true,"family":"Southworth","given":"C.","email":"ssouthwo@usgs.gov","middleInitial":"Scott","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":364607,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013939,"text":"70013939 - 1984 - Geochemistry of tholeiitic and alkalic lavas from the Koolau Range, Oahu, Hawaii: Implications for Hawaiian volcanism","interactions":[],"lastModifiedDate":"2020-10-01T18:41:29.620455","indexId":"70013939","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":"Geochemistry of tholeiitic and alkalic lavas from the Koolau Range, Oahu, Hawaii: Implications for Hawaiian volcanism","docAbstract":"<div id=\"abstracts\" class=\"Abstracts u-font-serif\"><div id=\"ab1\" class=\"abstract author\" lang=\"en\"><div id=\"aep-abstract-sec-id4\"><p>Lavas of the post-erosional, alkalic Honolulu Volcanics have significantly lower<span>&nbsp;</span><sup>87</sup>Sr/<sup>86</sup>Sr and higher<span>&nbsp;</span><sup>143</sup>Nd/<sup>144</sup>Nd than the older and underlying Koolau tholeiites which form the Koolau shield of eastern Oahu, Hawaii. Despite significant compositional variation within lavas forming the Honolulu Volcanics, these lavas are isotopically (Sr, Nd, Pb) very similar which contrasts with the isotopic heterogeneity of the Koolau tholeiites. Among Hawaiian tholeiitic suites, the Koolau lavas are geochemically distinct because of their lower iron contents and Sr and Nd isotopic ratios which range to bulk earth values. These geochemical data preclude simple models such as derivation of the Honolulu Volcanics and Koolau tholeiites from a common source by different degrees of melting or by mixing of two geochemically distinct sources. There may be no genetic relationship between the origin and evolution of these two lava suites; however, the trend shown by Koolau Range lavas of increasing<span>&nbsp;</span><sup>143</sup>Nd/<sup>144</sup>Nd and decreasing<span>&nbsp;</span><sup>87</sup>Sr/<sup>86</sup>Sr with decreasing eruption age and increasing alkalinity also occurs at Haleakala, East Molokai and Kauai volcanoes. A complex mixing model proposed for Haleakala lavas can account for the variations in Sr and Nd isotopic ratios and incompatible element abundances found in lavas from the Koolau Range. This model may reflect mixing and melting processes occurring during ascent of relatively enriched mantle through relatively depleted MORB-related lithosphere. Although two isotopically distinct components may be sufficient to explain Sr and Nd isotopic variations at individual Hawaiian volcanoes, more than two isotopically distinct materials are required to explain variations of Sr, Nd and Pb isotopic ratios in all Hawaiian lavas.</p></div></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/0012-821X(84)90079-7","issn":"0012821X","usgsCitation":"Roden, M., Frey, F., and Clague, D., 1984, Geochemistry of tholeiitic and alkalic lavas from the Koolau Range, Oahu, Hawaii: Implications for Hawaiian volcanism: Earth and Planetary Science Letters, v. 69, no. 1, p. 141-158, https://doi.org/10.1016/0012-821X(84)90079-7.","productDescription":"18 p.","startPage":"141","endPage":"158","costCenters":[],"links":[{"id":225612,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Koolau Range","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -158.01361083984375,\n              21.16904512040848\n            ],\n            [\n              -157.59063720703125,\n              21.16904512040848\n            ],\n            [\n              -157.59063720703125,\n              21.749295836732088\n            ],\n            [\n              -158.01361083984375,\n              21.749295836732088\n            ],\n            [\n              -158.01361083984375,\n              21.16904512040848\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"69","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1724e4b0c8380cd553cc","contributors":{"authors":[{"text":"Roden, M.F.","contributorId":55581,"corporation":false,"usgs":true,"family":"Roden","given":"M.F.","email":"","affiliations":[],"preferred":false,"id":367209,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Frey, F.A.","contributorId":12618,"corporation":false,"usgs":true,"family":"Frey","given":"F.A.","email":"","affiliations":[],"preferred":false,"id":367207,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clague, D.A.","contributorId":36129,"corporation":false,"usgs":true,"family":"Clague","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":367208,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013255,"text":"70013255 - 1984 - Ferromanganese nodules from MANOP Sites H, S, and R-Control of mineralogical and chemical composition by multiple accretionary processes","interactions":[],"lastModifiedDate":"2024-03-19T16:16:08.308122","indexId":"70013255","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":"Ferromanganese nodules from MANOP Sites H, S, and R-Control of mineralogical and chemical composition by multiple accretionary processes","docAbstract":"<p>The chemical composition of ferromanganese nodules from the three nodule-bearing MANOP sites in the Pacific can be accounted for in a qualitative way by variable contributions of distinct accretionary processes. These accretionary modes are:</p><ul class=\"list\"><li class=\"react-xocs-list-item\"><span class=\"list-label\">1.</span><p>(1) hydrogenous,<span>&nbsp;</span><i>i.e</i>., direct precipitation or accumulation of colloidal metal oxides in seawater,</p></li><li class=\"react-xocs-list-item\"><span class=\"list-label\">2.</span><p>(2) oxic diagenesis which refers to a variety of ferromanganese accretion processes occurring in oxic sediments; and</p></li><li class=\"react-xocs-list-item\"><span class=\"list-label\">3.</span><p>(3) suboxic diagenesis which results from reduction of Mn<sup>+4</sup><span>&nbsp;</span>by oxidation of organic matter in the sediments. Geochemical evidence suggests processes (1) and (2) occur at all three MANOP nodule-bearing sites, and process (3) occurs only at the hemipelagic site, H, which underlies the relatively productive waters of the eastern tropical Pacific.</p></li></ul><p>A normative model quantitatively accounts for the variability observed in nearly all elements. Zn and Na, however, are not well explained by the three end-member model, and we suggest that an additional accretionary process results in greater variability in the abundances of these elements. Variable contributions from the three accretionary processes result in distinct top-bottom compositional differences at the three sites. Nodule tops from H are enriched in Ni, Cu, and Zn, instead of the more typical enrichments of these elements in nodule bottoms. In addition, elemental correlations typical of most pelagic nodules are reversed at site H.</p><p>The three accretionary processes result in distinct mineralogies. Hydrogenous precipitation produces δMnO<sub>2</sub>. Oxic diagenesis, however, produces Cu-Ni-rich todorokite, and suboxic diagenesis results in an unstable todorokite which transforms to a 7 Å phase (“birnessite”) upon dehydration. The presence of Cu and Ni as charge-balancing cations influence the stability of the todorokite structure. In the bottoms of H nodules, which accrete dominantly by suboxic diagenesis, Na<sup>+</sup><span>&nbsp;</span>and possibly Mn<sup>+2</sup><span>&nbsp;</span>provide much of the charge balance for the todorokite structure.</p><p>Limited growth rate data for H nodules suggest suboxic accretion is the fastest of the three processes, with rates at least 200 mm/10<sup>6</sup><span>&nbsp;</span>yr. Oxic accretion is probably 10 times slower and hydrogenous 100 times slower. Since these rates predict more suboxic component in bulk nodules than is calculated by the normative analysis, we propose that suboxic accretion is a non-steady-state process. Variations in surface water productivity cause pulses of particulate flux to the sea floor which result in transient Mn reduction in the surface sediments and reprecipitation on nodule surfaces.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(84)90186-8","issn":"00167037","usgsCitation":"Dymond, J., Lyle, M., Finney, B., Piper, D., Murphy, K., Conard, R., and Pisias, N., 1984, Ferromanganese nodules from MANOP Sites H, S, and R-Control of mineralogical and chemical composition by multiple accretionary processes: Geochimica et Cosmochimica Acta, v. 48, no. 5, p. 931-949, https://doi.org/10.1016/0016-7037(84)90186-8.","productDescription":"19 p.","startPage":"931","endPage":"949","numberOfPages":"19","costCenters":[],"links":[{"id":220526,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0f87e4b0c8380cd53937","contributors":{"authors":[{"text":"Dymond, J.","contributorId":98461,"corporation":false,"usgs":true,"family":"Dymond","given":"J.","email":"","affiliations":[],"preferred":false,"id":365653,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lyle, M.","contributorId":40344,"corporation":false,"usgs":true,"family":"Lyle","given":"M.","email":"","affiliations":[],"preferred":false,"id":365649,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Finney, B.","contributorId":72125,"corporation":false,"usgs":true,"family":"Finney","given":"B.","affiliations":[],"preferred":false,"id":365651,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Piper, D.Z.","contributorId":34154,"corporation":false,"usgs":false,"family":"Piper","given":"D.Z.","email":"","affiliations":[],"preferred":false,"id":365648,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Murphy, K.","contributorId":89865,"corporation":false,"usgs":false,"family":"Murphy","given":"K.","email":"","affiliations":[],"preferred":false,"id":365652,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Conard, R.","contributorId":63531,"corporation":false,"usgs":true,"family":"Conard","given":"R.","email":"","affiliations":[],"preferred":false,"id":365650,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Pisias, N.","contributorId":25290,"corporation":false,"usgs":true,"family":"Pisias","given":"N.","affiliations":[],"preferred":false,"id":365647,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70013288,"text":"70013288 - 1984 - The heat capacities of osumilite from 298.15 to 1000 K, the thermodynamic properties of two natural chlorites to 500 K, and the thermodynamic properties of petalite to 1800 K.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:36","indexId":"70013288","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":"The heat capacities of osumilite from 298.15 to 1000 K, the thermodynamic properties of two natural chlorites to 500 K, and the thermodynamic properties of petalite to 1800 K.","docAbstract":"Modifications to an automated low-T, adiabatic calorimeter are described. Thermodynamic data obtained with this instrument are reported for minerals from metamorphic terrains. (U.S. Bureau of Mines Report of Investigations 8451)-J.A.Z.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Mineralogist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0003004X","usgsCitation":"Hemingway, B.S., Robie, R.A., Kittrick, J., Grew, E., Nelen, J., and London, D., 1984, The heat capacities of osumilite from 298.15 to 1000 K, the thermodynamic properties of two natural chlorites to 500 K, and the thermodynamic properties of petalite to 1800 K.: American Mineralogist, v. 69, no. 7-8, p. 701-710.","startPage":"701","endPage":"710","numberOfPages":"10","costCenters":[],"links":[{"id":220085,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"7-8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bacb2e4b08c986b32368c","contributors":{"authors":[{"text":"Hemingway, B. S.","contributorId":7268,"corporation":false,"usgs":true,"family":"Hemingway","given":"B.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":365731,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Robie, R. A.","contributorId":71237,"corporation":false,"usgs":true,"family":"Robie","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":365735,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kittrick, J.A.","contributorId":20893,"corporation":false,"usgs":true,"family":"Kittrick","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":365732,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Grew, E.S.","contributorId":31401,"corporation":false,"usgs":true,"family":"Grew","given":"E.S.","email":"","affiliations":[],"preferred":false,"id":365733,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nelen, J.A.","contributorId":96821,"corporation":false,"usgs":true,"family":"Nelen","given":"J.A.","email":"","affiliations":[],"preferred":false,"id":365736,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"London, D.","contributorId":61158,"corporation":false,"usgs":true,"family":"London","given":"D.","email":"","affiliations":[],"preferred":false,"id":365734,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":29127,"text":"wri844046 - 1984 - Hydrologic analysis of the High Plains aquifer system in Box Butte County, Nebraska","interactions":[],"lastModifiedDate":"2023-04-13T20:11:00.43511","indexId":"wri844046","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"84-4046","title":"Hydrologic analysis of the High Plains aquifer system in Box Butte County, Nebraska","docAbstract":"<p>During the past 40 years, pumpage of ground water for irrigation from the High Plains aquifer system underlying Box Butte County, Nebraska, has resulted in a steady decline of water levels. Consequently, a digital model of the aquifer system was constructed to evaluate various water-management alternatives. The hydraulic conductivity of the aquifer system ranges from 6 to 60 feet per day; the specific yield ranges from 12 to 21 percent; and natural recharge ranges from 0.06 to 4.33 inches annually. Predevelopment saturated thickness (1938) ranged from 190 to 510 feet. Water pumped in 1980 was estimated at 104,000 acre-feet from an estimated recoverable volume of 34.4 million acre-feet in the aquifer system. Results from model simulation predict that the area of water-level declines of 10 feet or more will increase from 336 square miles (1981) to 630 square miles by 1991 if pumpage is increased at the maximum annual rate experienced for the period 1972-81. Maximum water-level declines would increase from 50 feet (1981) to 79 feet (1991). However, pumpage rates held at the 1981 level (no further development) would limit the decline area of 10 feet or more to 530 square miles by 1991 and the maximum decline to 63 feet.</p>","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri844046","usgsCitation":"Pettijohn, R.A., and Chen, H., 1984, Hydrologic analysis of the High Plains aquifer system in Box Butte County, Nebraska: U.S. Geological Survey Water-Resources Investigations Report 84-4046, v, 54 p., https://doi.org/10.3133/wri844046.","productDescription":"v, 54 p.","costCenters":[],"links":[{"id":415731,"rank":3,"type":{"id":36,"text":"NGMDB Index Page"},"url":"https://ngmdb.usgs.gov/Prodesc/proddesc_36677.htm","linkFileType":{"id":5,"text":"html"}},{"id":57997,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/1984/4046/report.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":122905,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/wri/1984/4046/report-thumb.jpg"}],"country":"United States","state":"Nebraska","county":"Box Butte County","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -103.417,\n              42.433\n            ],\n            [\n              -103.417,\n              42\n            ],\n            [\n              -102.733,\n              42\n            ],\n            [\n              -102.733,\n              42.433\n            ],\n            [\n              -103.417,\n              42.433\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db6118f5","contributors":{"authors":[{"text":"Pettijohn, R. A.","contributorId":66743,"corporation":false,"usgs":true,"family":"Pettijohn","given":"R.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":200990,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chen, Hsiu-Hsiung","contributorId":6099,"corporation":false,"usgs":true,"family":"Chen","given":"Hsiu-Hsiung","email":"","affiliations":[],"preferred":false,"id":200989,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013999,"text":"70013999 - 1984 - PREDICTING GROUND-WATER DRAINAGE TO SURFACE MINES.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:28","indexId":"70013999","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"PREDICTING GROUND-WATER DRAINAGE TO SURFACE MINES.","docAbstract":"A two-dimensional, finite-difference numerical model is used to simulate the drainage of ground water into a surface coal mine. Graphs of dimensionless head as a function of dimensionless distance, and dimensionless seepage flux as a function of dimensionless time are developed from results of the numerical modeling. Changes in seepage flux and ground-water levels can be estimated from the dimensionless hydrographs, from knowledge of aquifer characteristics prior to mining, and by means of several 'simple-to-use' equations. The technique is an improvement on previous experimental, analytical, and other numerical solutions because drainage from the unsaturated zone also is considered. The procedure is applicable to a wide range of hydrogeologic settings, but is especially applicable to hydrogeologic conditions typically encountered in the coal strip-mining regions of Illinois.","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":"Weiss, L.S., and Galloway, D.L., 1984, PREDICTING GROUND-WATER DRAINAGE TO SURFACE MINES., Water for Resource Development, Proceedings of the Conference., Coeur D'Alene, ID, USA, p. 184-188.","startPage":"184","endPage":"188","numberOfPages":"5","costCenters":[],"links":[{"id":225484,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7370e4b0c8380cd77029","contributors":{"editors":[{"text":"Schreiber David L.","contributorId":128421,"corporation":true,"usgs":false,"organization":"Schreiber David L.","id":536286,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Weiss, Linda S. lsweiss@usgs.gov","contributorId":2955,"corporation":false,"usgs":true,"family":"Weiss","given":"Linda","email":"lsweiss@usgs.gov","middleInitial":"S.","affiliations":[],"preferred":true,"id":367341,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Galloway, Devin L. 0000-0003-0904-5355 dlgallow@usgs.gov","orcid":"https://orcid.org/0000-0003-0904-5355","contributorId":679,"corporation":false,"usgs":true,"family":"Galloway","given":"Devin","email":"dlgallow@usgs.gov","middleInitial":"L.","affiliations":[{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true},{"id":5058,"text":"Office of the Chief Scientist for Water","active":true,"usgs":true},{"id":509,"text":"Office of the Associate Director for Water","active":true,"usgs":true},{"id":5078,"text":"Southwest Regional Director's Office","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":367340,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013376,"text":"70013376 - 1984 - A simple model of ice segregation using an analytic function to model heat and soil-water flow","interactions":[],"lastModifiedDate":"2024-04-19T20:20:18.252681","indexId":"70013376","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2250,"text":"Journal of Energy Resources Technology, Transactions of the ASME","active":true,"publicationSubtype":{"id":10}},"title":"A simple model of ice segregation using an analytic function to model heat and soil-water flow","docAbstract":"<p><span>For slowly moving freezing fronts in soil, the heat-transport equation may be approximated by the Laplacian of temperature. Consequently, potential theory may be assumed to apply and the temperature state can be approximated by an analytic function. The movement of freezing fronts may be approximated by a time-stepped solution of the phase-change problem, thus solving directly for heat flow across a freezing or thawing front. Moisture transport may approximated by using an exact solution of the moisture-transport equation assuming quasi-steady-state conditions, appropriate boundary conditions, and an exponential function relating unsaturated hydraulic conductivity (defined within the thawed zones) to pore water pressure (tension). This approach is used to develop a single model of ice segregation (frost-heave) in freezing soils. Applications to published and experimental one-dimension soil column freezing data show promising results.</span></p>","language":"English","publisher":"American Society of Mechanical Engineers","doi":"10.1115/1.3231116","issn":"01950738","usgsCitation":"Hromadka, T., and Guymon, G.L., 1984, A simple model of ice segregation using an analytic function to model heat and soil-water flow: Journal of Energy Resources Technology, Transactions of the ASME, v. 106, no. 4, p. 515-520, https://doi.org/10.1115/1.3231116.","productDescription":"6 p.","startPage":"515","endPage":"520","numberOfPages":"6","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":220586,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"106","issue":"4","noUsgsAuthors":false,"publicationDate":"1984-12-01","publicationStatus":"PW","scienceBaseUri":"505aaf55e4b0c8380cd87524","contributors":{"authors":[{"text":"Hromadka, T. V. II","contributorId":76464,"corporation":false,"usgs":true,"family":"Hromadka","given":"T. V.","suffix":"II","affiliations":[],"preferred":false,"id":365931,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Guymon, G. L.","contributorId":83941,"corporation":false,"usgs":true,"family":"Guymon","given":"G.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":365932,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013810,"text":"70013810 - 1984 - Geochemistry of ferromanganese nodules from DOMES site a, Northern Equatorial Pacific: Multiple diagenetic metal sources in the deep sea","interactions":[],"lastModifiedDate":"2024-03-19T16:19:14.893624","indexId":"70013810","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":"Geochemistry of ferromanganese nodules from DOMES site a, Northern Equatorial Pacific: Multiple diagenetic metal sources in the deep sea","docAbstract":"<p>The major and minor element composition of ferromanganese nodules from DOMES Site A has been determined by X-ray fluorescence methods. Three phases appear to control the bulk compositions: Mn and Fe oxyhydroxides and aluminosilicates. Relatively wide compositional variations are evident throughout the area. Nodules with high Mn/Fe ratios, high Cu, Mg, Mo, Ni and Zn concentrations and high todorokite/δ-MnO<sub>2</sub><span>&nbsp;</span>ratios have granular surface textures and are confined to an east-west trending depression with thin Quaternary sediment cover. Nodules with low Mn/Fe ratios, high concentrations of As, Ca, Ce, Co, La, P, Sr, Ti, V, Y and Zr and low todorokite/δ-MnO<sub>2</sub><span>&nbsp;</span>ratios have smooth surfaces and are confined to shallower areas with relatively thick Quaternary sediment to the north and south of the depression.</p><p>All nodules in the area have compositions which are influenced by diagenesis, but those with the most marked diagenetic signature (high Mn/Fe and Cu/Ni ratios, low Ce/La ratios and more todorokite) are found in areas of very slow or non-existent sedimentation; many of these nodules are actually in contact with outcropping Tertiary sediment. This paradox may be resolved by postulating, by analogy with some shallow-water occurrences, that the nodules accrete from bottom waters which have enhanced particulate and dissolved metal contents derived from diagenetic reaction in areas remote from the site of nodule formation. The metals are supplied in a bottom flow (probably Antarctic Bottom Water) which also erodes, or prevents modern sedimentation in, the depression. Nodules on the flanks of the depression are not evidently affected by this flow and derive at least pan of their constituent metals from diagenetic reaction in the underlying Quaternary sediment.</p><p>Apparently, abyssal diagenetic nodules can have an immediate and a remote diagenetic metal source. Metal fluxes derived from pore water dissolved metal gradients may not be relevant to particular accreting nodules if a significant fraction of their metals is derived from outside the area in which they form.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(84)90374-0","issn":"00167037","usgsCitation":"Calvert, S., and Piper, D., 1984, Geochemistry of ferromanganese nodules from DOMES site a, Northern Equatorial Pacific: Multiple diagenetic metal sources in the deep sea: Geochimica et Cosmochimica Acta, v. 48, no. 10, p. 1913-1928, https://doi.org/10.1016/0016-7037(84)90374-0.","productDescription":"16 p.","startPage":"1913","endPage":"1928","numberOfPages":"16","costCenters":[],"links":[{"id":220614,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a16f4e4b0c8380cd5531d","contributors":{"authors":[{"text":"Calvert, S.E.","contributorId":12196,"corporation":false,"usgs":true,"family":"Calvert","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":366911,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piper, D.Z.","contributorId":34154,"corporation":false,"usgs":false,"family":"Piper","given":"D.Z.","email":"","affiliations":[],"preferred":false,"id":366912,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70013889,"text":"70013889 - 1984 - Modification of δ D values in eastern Nevada granitoid rocks spatially related to thrust faults","interactions":[],"lastModifiedDate":"2015-06-05T13:52:58","indexId":"70013889","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1336,"text":"Contributions to Mineralogy and Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Modification of δ D values in eastern Nevada granitoid rocks spatially related to thrust faults","docAbstract":"<p class=\"Para\">Stable isotope data have been determined for 13 Mesozoic and Tertiary plutons in eastern Nevada and nearby Utah. In the southern Snake Range of eastern Nevada, where relations are best exposed and have been most intensively studied,&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>D,&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>&nbsp;<span>18</span>O, and apparent K-Ar ages depend on proximity to the Snake Range decollement. Where stresses resulting from late movement on the decollement have caused cataclasis of Oligocene (37 Ma) granitoid rock,&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>&nbsp;<span>18</span>O,&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>D, and K-Ar age values as low as &minus;2.5&permil;, &minus;155&permil;, and 18 Ma, respectively, have been determined. Where there has been no cataclasis,&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>&nbsp;<span>18</span>O values of Jurassic, Cretaceous, and Oligocene granitoid rocks are apparently unaffected, but both&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>D values and K-Ar ages have been modified for distances of tens of meters below the decollement.</p>\n<p class=\"Para\">Results similar to those in the southern Snake Range have been observed in other eastern Nevada granitoid rocks spatially related to regional thrust faults, as in the Kern Mountains, the Toana Range, and the northern Egan Range. In each of these areas cataclasis or deformation of granitoid rocks has resulted in lowered&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>&nbsp;<span>18</span>O,&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>D, and K-Ar age values. Where there has been no cataclasis or deformation,&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>&nbsp;<span>18</span>O values are unaffected, but both&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>D and K-Ar age values have been lowered by stresses resulting from postcrystallization movement along overlying thrust faults.</p>\n<p class=\"Para\">Many of the plutons discussed have not been deeply eroded, and spatially related thrust faults crop out. Where thrust faults are not in evidence and the granitoid rocks give&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>D values lower than about &minus;130&permil; along with spuriously low K-Ar age results, modification of the&nbsp;<i class=\"EmphasisTypeItalic\">&delta;</i>D and K-Ar age values may have been caused by stresses related to late movement along an overlying (now eroded) thrust fault.</p>","language":"English","publisher":"Springer","doi":"10.1007/BF00380174","issn":"00107999","usgsCitation":"Lee, D.E., Friedman, I., and Gleason, J., 1984, Modification of δ D values in eastern Nevada granitoid rocks spatially related to thrust faults: Contributions to Mineralogy and Petrology, v. 88, no. 3, p. 288-298, https://doi.org/10.1007/BF00380174.","productDescription":"11 p.","startPage":"288","endPage":"298","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":225803,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":205655,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00380174"}],"volume":"88","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5cace4b0c8380cd6fe7f","contributors":{"authors":[{"text":"Lee, D. E.","contributorId":96705,"corporation":false,"usgs":true,"family":"Lee","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":367089,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Friedman, Irving","contributorId":90664,"corporation":false,"usgs":true,"family":"Friedman","given":"Irving","email":"","affiliations":[],"preferred":false,"id":367088,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gleason, J.D.","contributorId":27072,"corporation":false,"usgs":true,"family":"Gleason","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":367087,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70013938,"text":"70013938 - 1984 - Status and future of satellite image mapping: Based on experience of the U.S. Geological Survey","interactions":[],"lastModifiedDate":"2016-02-03T13:53:05","indexId":"70013938","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Status and future of satellite image mapping: Based on experience of the U.S. Geological Survey","docAbstract":"<p>Space systems now provide data in basically orthographic form which greatly simplifies the production of the image map. Moreover, the multispectral capability of space systems facilitates the use of the color mode when compared to aerial photography. Digital graphical information systems are now being developed on a global basis and the response from space which represents the image in multispectral form will undoubtedly be incorporated into such information systems. Thus, the capability of printing out the image along with more conventional map data will be a viable option.</p>","largerWorkTitle":"Proceedings of the International Symposium on Remote Sensing of Environment","conferenceTitle":"Proceedings of the Eighteenth International Symposium on Remote Sensing of Environment.","conferenceLocation":"Paris, France","language":"English","publisher":"Environmental Research Inst of Michigan","publisherLocation":"Ann Arbor, MI","issn":"02755505","usgsCitation":"Colvocoresses, A.P., 1984, Status and future of satellite image mapping: Based on experience of the U.S. Geological Survey, <i>in</i> Proceedings of the International Symposium on Remote Sensing of Environment, v. 2, Paris, France, p. 957-960.","productDescription":"4 p.","startPage":"957","endPage":"960","numberOfPages":"4","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":225611,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aaf8de4b0c8380cd87660","contributors":{"editors":[{"text":"Cook Jerald J.","contributorId":128359,"corporation":true,"usgs":false,"organization":"Cook Jerald J.","id":536285,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Colvocoresses, Alden P.","contributorId":72779,"corporation":false,"usgs":true,"family":"Colvocoresses","given":"Alden","email":"","middleInitial":"P.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":367206,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70014019,"text":"70014019 - 1984 - The solubility of strontianite (SrCO<sub>3</sub>) in CO<sub>2</sub>-H<sub>2</sub>O solutions between 2 and 91°C, the association constants of SrHCO<sup>+</sup><sub>3</sub>(aq) and SrCO<sup>0</sup><sub>3</sub>(aq) between 5 and 80°C, and an evaluation of the thermodynamic properties of Sr<sup>2+</sup>(aq) and SrCO<sub>3</sub>(cr) at 25°C and 1 atm total pressure","interactions":[],"lastModifiedDate":"2018-03-21T15:10:16","indexId":"70014019","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":"The solubility of strontianite (SrCO<sub>3</sub>) in CO<sub>2</sub>-H<sub>2</sub>O solutions between 2 and 91°C, the association constants of SrHCO<sup>+</sup><sub>3</sub>(aq) and SrCO<sup>0</sup><sub>3</sub>(aq) between 5 and 80°C, and an evaluation of the thermodynamic properties of Sr<sup>2+</sup>(aq) and SrCO<sub>3</sub>(cr) at 25°C and 1 atm total pressure","docAbstract":"<p id=\"\">Seventy new measurements (Sr<sub>T</sub>-P<sub>co2</sub>&nbsp;of the solubility of strontianite were used to evaluate the equilibrium constant for the reaction&nbsp;<i>SrCO</i><sub>3</sub>(<i>cr</i>) =&nbsp;<i>Sr</i><sup>2+</sup>(<i>aq</i>) +&nbsp;<i>CO</i><sup>2&minus;</sup><sub>3</sub>(<i>aq</i>) between 2 and 91 &deg;C. The temperature dependence of the equilibrium constant is given by the expression Log&nbsp;<i>K</i>&nbsp;= 155.0305 &minus; 7239.594/<i>T</i>&nbsp;&minus; 56.58638 log&nbsp;<i>T</i>&nbsp;where&nbsp;<i>T</i>&nbsp;is in degrees Kelvin. The log&nbsp;<i>K</i>&nbsp;of strontianite, the Gibbs energy, enthalpy and entropy of the reaction at 25&deg;C are &minus;9.271 &plusmn; 0.020, 52.919 &plusmn; 0.08&nbsp;<i>kJ</i>&nbsp;&middot; mol<sup>&minus;1</sup>, &minus;1.67 &plusmn; 1.30&nbsp;<i>kJ</i>&nbsp;&middot; mol<sup>&minus;1</sup>, and &minus;183.1 &plusmn; 4.0&nbsp;<i>J</i>&nbsp;&middot; mol<sup>&minus;1</sup>&nbsp;&middot;&nbsp;<i>K</i><sup>&minus;1</sup>, respectively. The equilibrium constants are consistent with an aqueous model that includes the ion pairs SrHCO<sup>+</sup><sub>3</sub>(aq) and SrCO<sup>0</sup><sub>3</sub>(aq) which were evaluated by potentiometric methods between 5 and 80&deg;C. The equilibrium constant for the association reaction&nbsp;<i>Sr</i><sup>2+</sup>(<i>aq</i>) +&nbsp;<i>HCO</i><sup>&minus;</sup><sub>3</sub>(<i>aq</i>) =<i>SrHCO</i><sup>+</sup><sub>3</sub><i>aq</i>) is given by the expression Log&nbsp;<i>K</i><sub><i>SrHCO</i><sup>+</sup>3</sub>&nbsp;= &minus;3.248 + 0.014867<i>T</i>. The log of the association constant, the Gibbs energy, enthalpy and entropy of the reaction at 25&deg;C are 1.18, &minus;6.76 kJ &middot; mol<sup>&minus;1</sup>, 25.30 kJ &middot; mol<sup>&minus;1</sup>, and 107.5 J &middot; mol<sup>&minus;1</sup>&nbsp;&middot; K<sup>&minus;1</sup>, respectively. The equilibrium constant for the association reaction&nbsp;<i>Sr</i><sup>2+</sup>(<i>aq</i>) +&nbsp;<i>CO</i><sup>2&minus;</sup><sub>3</sub>(<i>aq</i>) =&nbsp;<i>SrCO</i><sup>0</sup><sub>3</sub><i>aq</i>) is given by the expression Log&nbsp;<i>K</i><sub><i>SrCO</i><sup>0</sup>3</sub>&nbsp;= &minus;1.019 + 0.012826<i>T</i>. The log of the association constant, the Gibbs energy, enthalpy, and entropy of the reaction at 25&deg;C are 2.81, &minus;16.01 kJ &middot; mol<sup>&minus;1</sup>,21.83 kJ &middot; mol<sup>&minus;1</sup>, and 126.9 J &middot; mol<sup>&minus;1</sup>&nbsp;&middot; K<sup>&minus;1</sup>, respectively. These results lead to reliable calculation of the aqueous speciation and solubility of strontianite in the system SrCO<sub>3</sub>-CO<sub>2</sub>-H<sub>2</sub>O from 0 to more than 90&deg;C. Literature data on the solubility of strontianite have been evaluated and compared with these results.</p>\n<p id=\"\">Our new data for strontianite have been used in an evaluation of the thermodynamic properties of Sr<sup>2+</sup>(aq), SrCO<sub>3</sub>(cr) and related compounds. The following values are recommended for the standard enthalpy (kJ &middot; mol<sup>&minus;1</sup>), Gibbs energy (kJ &middot; mol<sup>&minus;1</sup>), and entropy (J &middot; mol<sup>&minus;1</sup>&nbsp;&middot; K<sup>&minus;1</sup>), respectively, of Sr<sup>2+</sup>aq): &minus;550.90 &plusmn; 0.50, &minus;563.83 &plusmn; 0.8 and &minus;31.50 &plusmn; 2.0, and for SrCO<sub>3</sub>(cr): &minus;1225.77 &plusmn; 1.1, &minus;1144.73 &plusmn; 1.0 and 97.2.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(84)90383-1","issn":"00167037","usgsCitation":"Busenberg, E., Plummer, N., and Parker, V.B., 1984, The solubility of strontianite (SrCO<sub>3</sub>) in CO<sub>2</sub>-H<sub>2</sub>O solutions between 2 and 91°C, the association constants of SrHCO<sup>+</sup><sub>3</sub>(aq) and SrCO<sup>0</sup><sub>3</sub>(aq) between 5 and 80°C, and an evaluation of the thermodynamic properties of Sr<sup>2+</sup>(aq) and SrCO<sub>3</sub>(cr) at 25°C and 1 atm total pressure: Geochimica et Cosmochimica Acta, v. 48, no. 10, p. 2021-2035, https://doi.org/10.1016/0016-7037(84)90383-1.","productDescription":"15 p.","startPage":"2021","endPage":"2035","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":225811,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb043e4b08c986b324d43","contributors":{"authors":[{"text":"Busenberg, Eurybiades ebusenbe@usgs.gov","contributorId":2271,"corporation":false,"usgs":true,"family":"Busenberg","given":"Eurybiades","email":"ebusenbe@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":367389,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Plummer, Niel 0000-0002-4020-1013 nplummer@usgs.gov","orcid":"https://orcid.org/0000-0002-4020-1013","contributorId":190100,"corporation":false,"usgs":true,"family":"Plummer","given":"Niel","email":"nplummer@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":367390,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Parker, Vivian B.","contributorId":19713,"corporation":false,"usgs":true,"family":"Parker","given":"Vivian","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":367388,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70012686,"text":"70012686 - 1984 - Upwarp of anomalous asthenosphere beneath the Rio Grande rift","interactions":[],"lastModifiedDate":"2012-03-12T17:19:07","indexId":"70012686","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":"Upwarp of anomalous asthenosphere beneath the Rio Grande rift","docAbstract":"Continental rifts are possible analogues of mid-ocean ridges, although major plate tectonic features are less clearly observed1. Current thermal models of mid-ocean ridges2-4 consist of solid lithospheric plates overlying the hotter, less viscous asthenosphere, with plate thickness increasing away from the ridge axis. The lithospheric lower boundary lies at or near the melting point isotherm, so that at greater depths higher temperatures account for lower viscosity, lower seismic velocities and possibly partial melting. Upwarp of this boundary at the ridge axis concentrates heat there, thus lowering densities by expansion and raising the sea floor to the level of thermal isostatic equilibrium. At slow spreading ridges, a major central graben forms owing to the mechanics of magma injection into the crust5. Topography, heat flow, gravity and seismic studies support these models. On the continents, a low-velocity channel has been observed, although it is poorly developed beneath ancient cratons6-9. Plate tectonic models have been applied to continental basins and margins10-12, but further similarities to the oceanic models remain elusive. Topographic uplift is often ascribed to Airy type isostatic compensation caused by crustal thickening, rather than thermal compensation in the asthenosphere. Here we discuss the Rio Grande rift, in southwestern United States. Teleseismic P-wave residuals show that regional uplift is explained by asthenosphere uplift rather than crustal thickening. ?? 1984 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/312354a0","issn":"00280836","usgsCitation":"Parker, E., Davis, P., Evans, J., Iyer, H.M., and Olsen, K., 1984, Upwarp of anomalous asthenosphere beneath the Rio Grande rift: Nature, v. 312, no. 5992, p. 354-356, https://doi.org/10.1038/312354a0.","startPage":"354","endPage":"356","numberOfPages":"3","costCenters":[],"links":[{"id":205249,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/312354a0"},{"id":222491,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"312","issue":"5992","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbd7ce4b08c986b329059","contributors":{"authors":[{"text":"Parker, E.C.","contributorId":53525,"corporation":false,"usgs":true,"family":"Parker","given":"E.C.","email":"","affiliations":[],"preferred":false,"id":364223,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, P.M.","contributorId":15229,"corporation":false,"usgs":true,"family":"Davis","given":"P.M.","email":"","affiliations":[],"preferred":false,"id":364220,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Evans, J.R.","contributorId":50526,"corporation":false,"usgs":true,"family":"Evans","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":364222,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Iyer, H. M.","contributorId":17997,"corporation":false,"usgs":true,"family":"Iyer","given":"H.","middleInitial":"M.","affiliations":[],"preferred":false,"id":364221,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Olsen, K.H.","contributorId":95201,"corporation":false,"usgs":true,"family":"Olsen","given":"K.H.","email":"","affiliations":[],"preferred":false,"id":364224,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":1000261,"text":"1000261 - 1984 - Potential impacts of water diversion on fishery resources in the Great Lakes","interactions":[],"lastModifiedDate":"2023-12-13T00:45:49.238397","indexId":"1000261","displayToPublicDate":"1984-01-01T00:00:00","publicationYear":"1984","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1657,"text":"Fisheries","onlineIssn":"1548-8446","printIssn":"0363-2415","active":true,"publicationSubtype":{"id":10}},"title":"Potential impacts of water diversion on fishery resources in the Great Lakes","docAbstract":"<p><span>Uses of Great Lakes water within the Great Lakes basin are steadily increasing, and critical water shortages elsewhere may add to the demands for diversions of water out of the basin in the near future. The impacts of such diversions on fish in the Great Lakes must be considered in the context of in-basin uses of the water, because in-basin uses already adversely affect the fishery resources. Temporary in-basin water withdrawals from Lake Michigan by industry in 1980 equaled 260% of the total volume of water between the shoreline and the 10-meter depth—the littoral waters most heavily used by fish as spawning and nursery grounds. Nearly 100% of the fish removed by these water withdrawals were killed. Enough young alewives&nbsp;</span><i>(Alosa pseudoharengus)</i><span>&nbsp;and rainbow smelt&nbsp;</span><i>(Osmerus mordax)</i><span>&nbsp;in Lake Michigan and young yellow perch&nbsp;</span><i>(Perca flavescens)</i><span>&nbsp;in western Lake Erie have been removed at water intakes in recent years to reduce the productivity and biomass of adult fish stocks. Out-of-basin diversions of water at Chicago and at the Welland Canal, channel modifications in the St. Clair River, and in-basin consumptive water withdrawals have lowered the annual mean water level of Lakes Michigan and Huron by about 27 cm and that of Lake Erie by about 10 cm, dewatering wetlands that historically served as spawning and nursery habitat for many valuable fish species. The dollar value of fish lost to water diversions and withdrawals has not yet been estimated, but water withdrawals alone have already reduced the annual economic impact of the Great Lakes fisheries, which has been estimated to be 1.16 billion dollars.</span></p>","language":"English","publisher":"Wiley","doi":"10.1577/1548-8446(1984)009%3C0019:PIOWDO%3E2.0.CO;2","usgsCitation":"Manny, B.A., 1984, Potential impacts of water diversion on fishery resources in the Great Lakes: Fisheries, v. 9, no. 5, p. 19-23, https://doi.org/10.1577/1548-8446(1984)009%3C0019:PIOWDO%3E2.0.CO;2.","productDescription":"4 p.","startPage":"19","endPage":"23","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133294,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, United States","otherGeospatial":"Great Lakes, Lake Erie, Lake Huron, Lake Michigan, Lake Ontario, Lake 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-81.75601275916256,\n              41.41286155008791\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"9","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad4e4b07f02db6830f0","contributors":{"authors":[{"text":"Manny, Bruce A. 0000-0002-4074-9329 bmanny@usgs.gov","orcid":"https://orcid.org/0000-0002-4074-9329","contributorId":3699,"corporation":false,"usgs":true,"family":"Manny","given":"Bruce","email":"bmanny@usgs.gov","middleInitial":"A.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":308308,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70013512,"text":"70013512 - 1984 - Macrotidal subarctic environment of Turnagain and Knik Arms, Upper Cook Inlet, Alaska: sedimentology of the intertidal zone","interactions":[],"lastModifiedDate":"2024-05-21T23:25:21.913787","indexId":"70013512","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":"Macrotidal subarctic environment of Turnagain and Knik Arms, Upper Cook Inlet, Alaska: sedimentology of the intertidal zone","docAbstract":"<div><div id=\"12458880\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>An extensive sheet of silty sand crossed by tidal channels is exposed at low tide in Turnagain and Knik Arms, Alaska. Transportation and deposition of sediment composing this sheet is the result of strong tidal currents due to the maximum spring tidal range of approximately 11.4 m. In Turnagain and Knik Arms, the initiation of the floodtide is accompanied by the occurrence of a tidal bore that travels at a speed of 4 m/sec or more up the tidal channels. In intertidal environments in many parts of the world, physical processes of sedimentation are typically influenced by surface fauna; sedimentary structures in some zones are altered or obliterated by the activities of the infauna. However, in Turnagain and Knik Arms, virtually no macrofauna exist, and so the area provides an opportunity to study depositional processes and sedimentary structures without the masking effects of bioturbation. Suspended-sediment values for Turnagain and Knik Arms are greatest in the summer months and nearest low-tide stages. Ice floes form during winter months and, in combination with the freezing of intertidal sediment to several meters of depth, have a significant effect on sediment dispersal and on the deepening and increased stability of the tidal channels. The intertidal sediment is mainly very well sorted, medium to very fine sand and coarse silt, with a notable paucity of gravel, coarse sand, and clay. Sediment accumulates in sandbars oriented parallel to the axis of the estuary. Textural and facies patterns reflect decreasing current energy, first, as a function of distance from the mouth of the estuary and, second, as a function of topographic elevation on the sandbars. The intertidal deposits in Turnagain Arm contain a transitional upward-fining sequence which is analogous to point-bar and channel-bar successions described by other workers. The base of the sequence contains parallel-laminated sand that is overlain by mixed parallel- and cross-laminated silty sand overlain by cross-laminated silty sand. At the top of the sequence is a unit of organically rich parallel-laminated silt and sandy silt. This suite of sedimentary features and textures indicates changing current velocities and directions as bars emerge or are modified during ebb tide, and the vertical sequences could potentially be used to record intertidal bar erosion and aggradation by point- and channel-bar migration, a process carried out primarily by bed-load currents.</p></div></div>","language":"English","publisher":"SEPM","doi":"10.1306/212F85A8-2B24-11D7-8648000102C1865D","issn":"00224472","usgsCitation":"Bartsch-Winkler, S., and Ovenshine, A., 1984, Macrotidal subarctic environment of Turnagain and Knik Arms, Upper Cook Inlet, Alaska: sedimentology of the intertidal zone: Journal of Sedimentary Petrology, v. 54, no. 4, p. 1221-1238, https://doi.org/10.1306/212F85A8-2B24-11D7-8648000102C1865D.","productDescription":"18 p.","startPage":"1221","endPage":"1238","numberOfPages":"18","costCenters":[],"links":[{"id":220591,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4b26e4b0c8380cd69320","contributors":{"authors":[{"text":"Bartsch-Winkler, S.","contributorId":31388,"corporation":false,"usgs":true,"family":"Bartsch-Winkler","given":"S.","affiliations":[],"preferred":false,"id":366221,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ovenshine, A.T.","contributorId":80268,"corporation":false,"usgs":true,"family":"Ovenshine","given":"A.T.","affiliations":[],"preferred":false,"id":366222,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5221823,"text":"5221823 - 1983 - Atlantic Flyway review: Region V","interactions":[{"subject":{"id":70184471,"text":"70184471 - 1983 - Atlantic Flyway review: Region V: Laurel, Prince Georges County, MD (390-0765)","indexId":"70184471","publicationYear":"1983","noYear":false,"title":"Atlantic Flyway review: Region V: Laurel, Prince Georges County, MD (390-0765)"},"predicate":"IS_PART_OF","object":{"id":5221823,"text":"5221823 - 1983 - Atlantic Flyway review: Region V","indexId":"5221823","publicationYear":"1983","noYear":false,"title":"Atlantic Flyway review: Region V"},"id":1}],"lastModifiedDate":"2017-03-09T17:08:41","indexId":"5221823","displayToPublicDate":"2010-06-16T12:19:13","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2881,"text":"North American Bird Bander","active":true,"publicationSubtype":{"id":10}},"title":"Atlantic Flyway review: Region V","docAbstract":"<p>One new station was added to the Region V roster in 1981: Bestgate in the Annapolis suburbs. We also have a summary from Cylburn Arboretum in Baltimore City, a station that had not reported since 1977.</p><p>The total regional effort of 82,282 net-hours was surpassed only in 1980. Although the total net-hours of operation decreased only 10.8% from 1980, the number of birds banded dropped 15.8%. The greatest decrease in birds per 100 net-hours (-56%) occurred at Gulf Breeze, Florida. Inspection of the last two lines of Table I shows that only modest changes occurred at other stations. Complying the 14 stations that reported in both 1980 and 1981, the birds per 100 net-hours decreased from 40.31 to 38.20. </p>","language":"English","publisher":"Western, Inland, and Eastern Bird Banding Associations","usgsCitation":"Robbins, C.S., 1983, Atlantic Flyway review: Region V: North American Bird Bander, v. 8, no. 1, p. 30-35.","productDescription":"6 p.","startPage":"30","endPage":"35","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":198999,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18094,"rank":300,"type":{"id":15,"text":"Index Page"},"url":"https://www.westernbirdbanding.org/nabb.html","text":"Journal's Website"}],"country":"United States","volume":"8","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4aade4b07f02db66b30f","contributors":{"authors":[{"text":"Robbins, Chandler S. crobbins@usgs.gov","contributorId":4275,"corporation":false,"usgs":true,"family":"Robbins","given":"Chandler","email":"crobbins@usgs.gov","middleInitial":"S.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":334766,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5221831,"text":"5221831 - 1983 - Estimation methodology in contemporary small mammal capture-recapture studies","interactions":[],"lastModifiedDate":"2024-07-01T12:04:08.38427","indexId":"5221831","displayToPublicDate":"2010-06-16T12:18:58","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2373,"text":"Journal of Mammalogy","onlineIssn":"1545-1542","printIssn":"0022-2372","active":true,"publicationSubtype":{"id":10}},"title":"Estimation methodology in contemporary small mammal capture-recapture studies","docAbstract":"<p class=\"chapter-para\">Estimators of population size and survival rate based on the Jolly-Seber capture-recapture model and the “enumeration method” are described. Enumeration estimators are shown to estimate complicated functions of capture and survival probabilities and, in the case of the population size estimator, population size. Frequently-listed reasons for preferring enumeration estimators are discussed and the Jolly-Seber estimators are shown to be superior even in the case of heterogeneity and trap-happy response, the two sources of unequal capture probability most likely to occur in small mammal studies. New developments in probabilistic capture-recapture models are described, and these models are recommended for future small mammal capture-recapture studies.</p>","language":"English","publisher":"Oxford Academic","doi":"10.2307/1380555","usgsCitation":"Nichols, J., and Pollock, K.H., 1983, Estimation methodology in contemporary small mammal capture-recapture studies: Journal of Mammalogy, v. 64, no. 2, p. 253-260, https://doi.org/10.2307/1380555.","productDescription":"8 p.","startPage":"253","endPage":"260","numberOfPages":"8","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":197067,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"64","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a0be4b07f02db5fbe38","contributors":{"authors":[{"text":"Nichols, J.D. 0000-0002-7631-2890","orcid":"https://orcid.org/0000-0002-7631-2890","contributorId":14332,"corporation":false,"usgs":true,"family":"Nichols","given":"J.D.","affiliations":[],"preferred":false,"id":334779,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pollock, K. H.","contributorId":65184,"corporation":false,"usgs":false,"family":"Pollock","given":"K.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":334780,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5221835,"text":"5221835 - 1983 - Estimating taxonomic diversity, extinction rates, and speciation rates from fossil data using capture-recapture models","interactions":[],"lastModifiedDate":"2025-06-06T13:42:44.880347","indexId":"5221835","displayToPublicDate":"2010-06-16T12:18:58","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3001,"text":"Paleobiology","active":true,"publicationSubtype":{"id":10}},"title":"Estimating taxonomic diversity, extinction rates, and speciation rates from fossil data using capture-recapture models","docAbstract":"<p><span>Methods currently used to estimate taxonomic extinction probabilities from fossil data generally assume that the probability of encountering a specimen in a particular stratum, given that the taxon was extant in the time period and location represented by the stratum, either equals 1.0 or else is a constant for all strata. Methods used to estimate taxonomic diversity (number of taxa) and speciation rate generally assume that encounter probabilities equal 1.0. We suspect that these assumptions are often false. Capture-recapture models were historically developed for estimation in the face of variable and unknown sampling probabilities. These models can thus be used to estimate parameters of interest from paleobiological data when encounter probabilities are unknown and variable over time. These models also permit estimation of sampling variances, and goodness-of-fit tests are available for assessing the fit of data to most models. Here we describe capture-recapture models which should be useful in paleobiological analyses and discuss the assumptions which underlie them. We illustrate these models with examples and discuss aspects of study design. We conclude that these models should prove useful in paleobiological analyses.</span></p>","language":"English","publisher":"Cambridge University Press","doi":"10.1017/S0094837300007533","usgsCitation":"Nichols, J., and Pollock, K.H., 1983, Estimating taxonomic diversity, extinction rates, and speciation rates from fossil data using capture-recapture models: Paleobiology, v. 9, no. 2, p. 150-163, https://doi.org/10.1017/S0094837300007533.","productDescription":"14 p.","startPage":"150","endPage":"163","numberOfPages":"14","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":197147,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"2","noUsgsAuthors":false,"publicationDate":"2016-04-08","publicationStatus":"PW","scienceBaseUri":"4f4e4a0ce4b07f02db5fc802","contributors":{"authors":[{"text":"Nichols, J.D. 0000-0002-7631-2890","orcid":"https://orcid.org/0000-0002-7631-2890","contributorId":14332,"corporation":false,"usgs":true,"family":"Nichols","given":"J.D.","affiliations":[],"preferred":false,"id":334793,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pollock, K. H.","contributorId":65184,"corporation":false,"usgs":false,"family":"Pollock","given":"K.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":334794,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":5211166,"text":"5211166 - 1983 - Physiological effects of toxic substances on wildlife species","interactions":[],"lastModifiedDate":"2012-02-02T00:15:22","indexId":"5211166","displayToPublicDate":"2009-06-09T09:23:19","publicationYear":"1983","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Physiological effects of toxic substances on wildlife species","docAbstract":"Study of the physiological effects of contaminants on wildlife species has expanded as more sophisticated medical techniques are adapted to wildlife and as the mode of action of new classes of pesticides increase the number of organ systems which may be sublethally or lethally impacted. This paper summarizes some of the latest data published on toxicant affects on organ systems of warm-blooded vertebrates.  Reporting on effects with enzyme systems concentrates on cholinesterase in blood and plasma after sublethal and lethal exposure to organophosphate end carbamate pesticides, but also covers, recent work with Na+, k+-ATPases, AST, AAT, and AL.AD. A discussion of recent work on hormones, biogenlc amines, and other compounds which indicate alteration of specific organ systems, is followed by examples of histopathological lesions associated both pathognomically and non-specifically with widely-used and/or severely toxic contaminants.  All these specific effects and lesions are then discussed in terms of their potential for use diagnostically in field problems and their practical and possible impact on wildlife populations.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Collected Reports from the Czechoslovak-American Symposium on Toxic Effects of Chemical Environmental Contaminants upon Production and Reproduction Ability in Free-Living Animals (held October 3-4, 1983)","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"University of Veterinary Medicine","publisherLocation":"Kosice, Czechoslovakia","collaboration":"Actually published in 1987.  Only meeting year given on publication.","usgsCitation":"Haseltine, S.D., 1983, Physiological effects of toxic substances on wildlife species, chap. <i>of</i> Collected Reports from the Czechoslovak-American Symposium on Toxic Effects of Chemical Environmental Contaminants upon Production and Reproduction Ability in Free-Living Animals (held October 3-4, 1983).","productDescription":"273","startPage":"53 (abs)","numberOfPages":"273","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":200665,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ee4b07f02db660a8e","contributors":{"editors":[{"text":"Kacmar, Peter","contributorId":112854,"corporation":false,"usgs":true,"family":"Kacmar","given":"Peter","affiliations":[],"preferred":false,"id":507657,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Legath, J.","contributorId":112511,"corporation":false,"usgs":true,"family":"Legath","given":"J.","email":"","affiliations":[],"preferred":false,"id":507656,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Haseltine, S. D.","contributorId":80219,"corporation":false,"usgs":true,"family":"Haseltine","given":"S.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":330305,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5210310,"text":"5210310 - 1983 - Nutrition and disease relationships that may serve as models for feeding oiled birds","interactions":[],"lastModifiedDate":"2012-02-02T00:15:13","indexId":"5210310","displayToPublicDate":"2009-06-09T09:23:17","publicationYear":"1983","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Nutrition and disease relationships that may serve as models for feeding oiled birds","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The Effects of Oil on Birds: A Multi-discipline Symposium","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"Tri-State Bird Rescue and Research, Inc.","publisherLocation":"Wilmington, Delaware","usgsCitation":"Serafin, J.A., 1983, Nutrition and disease relationships that may serve as models for feeding oiled birds, chap. <i>of</i> The Effects of Oil on Birds: A Multi-discipline Symposium, p. 167-178.","productDescription":"iv, 178","startPage":"167","endPage":"178","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":196351,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4afce4b07f02db696690","contributors":{"editors":[{"text":"Rosie, D.","contributorId":111324,"corporation":false,"usgs":true,"family":"Rosie","given":"D.","affiliations":[],"preferred":false,"id":506261,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Barnes, S.N.","contributorId":112903,"corporation":false,"usgs":true,"family":"Barnes","given":"S.N.","email":"","affiliations":[],"preferred":false,"id":506262,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Serafin, John A.","contributorId":11292,"corporation":false,"usgs":true,"family":"Serafin","given":"John","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":328178,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5210323,"text":"5210323 - 1983 - Avian artificial insemination and semen preservation","interactions":[],"lastModifiedDate":"2012-02-02T00:15:20","indexId":"5210323","displayToPublicDate":"2009-06-09T09:23:17","publicationYear":"1983","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Avian artificial insemination and semen preservation","docAbstract":"Summary:  Artificial insemination is a practical propagation tool that has been successful with a variety of birds. Cooperative, massage, and electroejaculation and modifications of these three basic methods of semen collection are described for a variety of birds. Semen color and consistency and sperm number, moti!ity, and morphology, as discussed, are useful indicators of semen quality, but the most reliable test of semen quality is the production of fertile eggs. Successful cryogenic preservation of avian semen with DMSO or glycerol as the cryoprotectant has been possible. Although the methods for preservation require special equipment, use of frozen semen requires only simple insemination supplies","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the 1983 Jean Delacour/IFCB Symposium on Breeding Birds in Captivity","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"International Foundation for the Conservation of Birds","publisherLocation":"North Hollywood, California","usgsCitation":"Gee, G., 1983, Avian artificial insemination and semen preservation, chap. <i>of</i> Proceedings of the 1983 Jean Delacour/IFCB Symposium on Breeding Birds in Captivity, p. 375-398.","productDescription":"xiii, 622 (loose leaf)","startPage":"375","endPage":"398","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":201208,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a96e4b07f02db65a708","contributors":{"editors":[{"text":"Risser, Arthur C.","contributorId":111597,"corporation":false,"usgs":true,"family":"Risser","given":"Arthur","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":506280,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Todd, Frank S.","contributorId":113201,"corporation":false,"usgs":true,"family":"Todd","given":"Frank","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":506281,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Gee, G.F.","contributorId":70335,"corporation":false,"usgs":true,"family":"Gee","given":"G.F.","email":"","affiliations":[],"preferred":false,"id":328204,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
]}