A model is proposed that relates water level fluctuations in a Dupuit aquifer to effective precipitaton at the top of the unsaturated zone. Effective precipitation, defined herein as that portion of precipitation which becomes recharge, is related to precipitation measured in a nearby gage by a two-parameter function. A second-order stationary assumption is used to connect the spectra of effective precipitation and water level fluctuations. Measured precipitation is assumed to be Gaussian, in order to develop a transfer function that relates the spectra of measured and effective precipitation. A nonlinear least squares technique is proposed for estimating parameters of the effective-precipitation function. Although sensitivity analyses indicate difficulties that may be encountered in the estimation procedure, the methods developed did yield convergent estimates for two case studies.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR019i006p01531","usgsCitation":"Naff, R.L., and Gutjahr, A.L., 1983, Estimation of groundwater recharge parameters by time series analysis: Water Resources Research, v. 19, no. 6, p. 1531-1546, https://doi.org/10.1029/WR019i006p01531.","productDescription":"16 p.","startPage":"1531","endPage":"1546","costCenters":[],"links":[{"id":220894,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"19","issue":"6","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505a0b90e4b0c8380cd52797","contributors":{"authors":[{"text":"Naff, Richard L.","contributorId":195332,"corporation":false,"usgs":false,"family":"Naff","given":"Richard","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":360723,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gutjahr, Allan L.","contributorId":37065,"corporation":false,"usgs":false,"family":"Gutjahr","given":"Allan","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":360722,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011393,"text":"70011393 - 1983 - Intensity patterns in eastern Asia.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:10","indexId":"70011393","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1232,"text":"Chinese Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Intensity patterns in eastern Asia.","docAbstract":"Investigation of the intensity patterns of earthquakes of E Asia indicates a strong regional pattern of attenuation parameter k and systematic correlation of this pattern with topography, P residuals, and level of seismicity as in the USA.-Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chinese Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"01620118","usgsCitation":"Evernden, J., 1983, Intensity patterns in eastern Asia.: Chinese Geophysics, v. 2, no. 2, p. 405-438.","startPage":"405","endPage":"438","numberOfPages":"34","costCenters":[],"links":[{"id":221661,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3c9be4b0c8380cd62ea7","contributors":{"authors":[{"text":"Evernden, J. F.","contributorId":40593,"corporation":false,"usgs":true,"family":"Evernden","given":"J. F.","affiliations":[],"preferred":false,"id":360990,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011304,"text":"70011304 - 1983 - PROBLEMS AND METHODOLOGY OF THE PETROLOGIC ANALYSIS OF COAL FACIES.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:29","indexId":"70011304","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"PROBLEMS AND METHODOLOGY OF THE PETROLOGIC ANALYSIS OF COAL FACIES.","docAbstract":"This condensed synthesis gives a broad outline of the methodology of coal facies analysis, procedures for constructing sedimentation and geochemical formation curves, and micro- and macrostratigraphic analysis. The hypothetical coal bed profile has a 3-fold cycle of material characteristics. Based on studies of other similar profiles of the same coal bed, and on field studies of the sedimentary rock types and their facies interpretation, one can assume that the 3-fold subdivision is of regional significance.","conferenceTitle":"Proceedings - 1983 International Conference on Coal Science.","conferenceLocation":"Pittsburgh, PA, USA","language":"English","usgsCitation":"Chao, E.C., 1983, PROBLEMS AND METHODOLOGY OF THE PETROLOGIC ANALYSIS OF COAL FACIES., Proceedings - 1983 International Conference on Coal Science., Pittsburgh, PA, USA, p. 385-388.","startPage":"385","endPage":"388","numberOfPages":"4","costCenters":[],"links":[{"id":221356,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a737be4b0c8380cd77071","contributors":{"authors":[{"text":"Chao, Edward C.T.","contributorId":88485,"corporation":false,"usgs":true,"family":"Chao","given":"Edward","email":"","middleInitial":"C.T.","affiliations":[],"preferred":false,"id":360787,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011281,"text":"70011281 - 1983 - Palaeomagnetism of lower cretaceous tuffs from Yukon-Kuskokwim delta region, western Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:18:35","indexId":"70011281","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Palaeomagnetism of lower cretaceous tuffs from Yukon-Kuskokwim delta region, western Alaska","docAbstract":"During the past decade, the prescient arguments1-3 for the allochthoneity of large portions of southern Alaska have been corroborated by detailed geological and palaeomagnetic studies in south-central Alaska 4-9 the Alaska Peninsula10, Kodiak Island11,12 and the Prince William Sound area13 (Fig. 1). These investigations have demonstrated sizeable northward displacements for rocks of late Palaeozoic, Mesozoic, and early Tertiary age in those regions, with northward motion at times culminating in collision of the allochthonous terranes against the backstop of 'nuclear' Alaska14,15. A fundamental question is which parts of Alaska underwent significantly less latitudinal translation relative to the 'stable' North American continent, thereby serving as the 'accretionary nucleus' into which the displaced 'microplates'16 were eventually incorporated17,18? Here we present new palaeomagnetic results from tuffs and associated volcaniclastic rocks of early Cretaceous age from the Yukon-Kuskokwin delta region in western Alaska. These rocks were probably overprinted during the Cretaceous long normal polarity interval, although a remagnetization event as recent as Palaeocene cannot be ruled out. This overprint direction is not appreciably discordant from the expected late Cretaceous direction for cratonal North America. The implied absence of appreciable northward displacement for this region is consistent with the general late Mesozoic-early Tertiary tectonic pattern for Alaska, based on more definitive studies: little to no poleward displacement for central Alaska, though substantially more northward drift for the 'southern Alaska terranes' (comprising Alaska Peninsula, Kodiak Island, Prince William Sound area, and Matunuska Valley) since late Cretaceous to Palaeocene time. ?? 1983 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/305516a0","issn":"00280836","usgsCitation":"Globerman, B., Coe, R.S., Hoare, J., and Decker, J., 1983, Palaeomagnetism of lower cretaceous tuffs from Yukon-Kuskokwim delta region, western Alaska: Nature, v. 305, no. 5934, p. 516-520, https://doi.org/10.1038/305516a0.","startPage":"516","endPage":"520","numberOfPages":"5","costCenters":[],"links":[{"id":205079,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/305516a0"},{"id":221038,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"305","issue":"5934","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a73aae4b0c8380cd7719e","contributors":{"authors":[{"text":"Globerman, B.R.","contributorId":105432,"corporation":false,"usgs":true,"family":"Globerman","given":"B.R.","affiliations":[],"preferred":false,"id":360741,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coe, R. S.","contributorId":81228,"corporation":false,"usgs":false,"family":"Coe","given":"R.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":360740,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hoare, J. M.","contributorId":52143,"corporation":false,"usgs":true,"family":"Hoare","given":"J. M.","affiliations":[],"preferred":false,"id":360739,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Decker, J.","contributorId":10548,"corporation":false,"usgs":true,"family":"Decker","given":"J.","email":"","affiliations":[],"preferred":false,"id":360738,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70011240,"text":"70011240 - 1983 - THEMATIC MAPPER: DETAILED RADIOMETRIC AND GEOMETRIC CHARACTERISTICS.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:31","indexId":"70011240","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"THEMATIC MAPPER: DETAILED RADIOMETRIC AND GEOMETRIC CHARACTERISTICS.","docAbstract":"The paper is in abstract form. It discusses those radiometric characteristics of the Landsat 4 Thematic Mapper (TM) that can be established without absolute calibration or spectral data. Subscenes of radiometrically raw data (B-data) were examined on an individual detector basis; areas of uniform radiance were used to characterize subtle radiometric differences and noise problems. The effective resolution in radiance is degraded by about a factor of two by irregular width of the digital levels. Several detectors have a change of gain with a period of several scans, the largest effect is about 4%. The geometric fidelity of the GSFC filmwriter used for Thematic Mapper (TM) images was assessed by measurement with accuracy better than three micrometers of a test grid.","conferenceTitle":"Proceedings - Pecora VIII Symposium: Satellite Land Remote Sensing Advancements for the Eighties.","conferenceLocation":"Sioux Falls, ND, USA","language":"English","publisher":"Augustana Coll","publisherLocation":"Sioux Falls, SD, USA","usgsCitation":"Kieffer, H., 1983, THEMATIC MAPPER: DETAILED RADIOMETRIC AND GEOMETRIC CHARACTERISTICS., Proceedings - Pecora VIII Symposium: Satellite Land Remote Sensing Advancements for the Eighties., Sioux Falls, ND, USA.","startPage":"75","costCenters":[],"links":[{"id":221161,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba382e4b08c986b31fd26","contributors":{"authors":[{"text":"Kieffer, Hugh","contributorId":13747,"corporation":false,"usgs":true,"family":"Kieffer","given":"Hugh","affiliations":[],"preferred":false,"id":360641,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011210,"text":"70011210 - 1983 - Two classes of volcanic plumes on Io","interactions":[],"lastModifiedDate":"2019-06-11T13:57:31","indexId":"70011210","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Two classes of volcanic plumes on Io","docAbstract":"Comparison of Voyager 1 and Voyager 2 images of the south polar region of Io has revealed that a major volcanic eruption occured there during the period between the two spacecraft encounters. An annular deposit ∼1400 km in diameter formed around the Aten Patera caldera (311°W, 48°S), the floor of which changed from orange to red-black. The characteristics of this eruption are remarkably similar to those described earlier for an eruption centered on Surt caldera (338°W, 45°N) that occured during the same period, also at high latitude, but in the north. Both volcanic centers were evidently inactive during the Voyager 1 and 2 encounters but were active sometime between the two. The geometric and colorimetric characteristics, as well as scale of the two annular deposits, are virtually identical; both resemble the surface features formed by the eruption of Pele (255°W, 18°S). These three very large plume eruptions suggest a class of eruption distinct from that of six smaller plumes observed to be continously active by both Voyagers 1 and 2. The smaller plumes, of which Prometheus is the type example, are longer-lived, deposit bright, whitish material, erupt at velocities of ∼0.5 km sec−1, and are concentrated at low latitudes in an equatorial belt around the satellite. The very large Pele-type plumes, on the other hand, are relatively short-lived, deposit darker red materials, erupt at ∼1.0 km sec−1, and (rather than restricted to a latitudinal band) are restricted in longitude from 240° to 360°W. Both direct thermal infrared temperature measurements and the implied color temperatures for quenched liquid sulfur suggest that hot spot temperatures of ∼650°K are associated with the large plumes and temperatures <400°K with the small plumes. The typical eruption duration of the small plumes is at least several years; that of the large plumes appears to be of the order of days to weeks. The two classes therefore differ by more than two orders of magnitude in duration of eruption. Based on uv, visible, and infrared spectra, the small plumes seem to contain and deposit SO2 in their annuli whereas the large plumes apparently do not. Two other plumes that occur at either end of the linear feature Loki may be intermediate or hybrid between the two classes, exhibiting attributes of both. Additionally, Loki occurs in the area of overlap in the regional distributions of the two plume classes. Two distinct volcanic systems involving different volatiles may be responsible for the two classes. We propose that the discrete temperatures associated with the two classes are a direct reflection of sulfur's peculiar variation in viscosity with temperature. Over two temperature ranges (∼400 to 430°K and >650°K), sulfur is a low-viscosity fluid (orange and black, respectively); at other temperatures it is either solid or has a high viscosity. As a result, there will be two zones in Io's crust in which liquid sulfur will flow freely: a shallow zone of orange sulfur and a deeper zone of black sulfur. A low-temperature system driven by SO2heated to 400 to 400°K by the orange sulfur zone seems the best model for the small plumes; a system driven by sulfur heated to >650°K by hot or even molten silicates in the black sulfur zone seems the best explanation for the large plume class. The large Pele-type plumes are apparently concentrated in a region of the satellite in which a thinner sulfur-rich crust overlies the tidally heated silicate lithosphere, so the black sulfur zone may be fairly shallow in this region. The Prometheus-type plumes are possibly confined to the equatorial belt by some process that concentrates SO2 fluid in the equatorial crust.
","language":"English","publisher":"Elsevier","doi":"10.1016/0019-1035(83)90075-1","issn":"00191035","usgsCitation":"McEwen, A.S., and Soderblom, L., 1983, Two classes of volcanic plumes on Io: Icarus, v. 55, no. 2, p. 191-217, https://doi.org/10.1016/0019-1035(83)90075-1.","productDescription":"27 p.","startPage":"191","endPage":"217","numberOfPages":"27","costCenters":[],"links":[{"id":220692,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb94ce4b08c986b327bb3","contributors":{"authors":[{"text":"McEwen, A. S.","contributorId":11317,"corporation":false,"usgs":true,"family":"McEwen","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":360567,"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":360566,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011386,"text":"70011386 - 1983 - Ground-water models for water resource planning","interactions":[],"lastModifiedDate":"2012-03-12T17:19:10","indexId":"70011386","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1746,"text":"GeoJournal","active":true,"publicationSubtype":{"id":10}},"title":"Ground-water models for water resource planning","docAbstract":"In the past decade hydrogeologists have emphasized the development of computer-based mathematical models to aid in the understanding of flow, the transport of solutes, transport of heat, and deformation in the ground-water system. These models have been used to provide information and predictions for water managers. Too frequently, ground-water was neglected in water resource planning because managers believed that it could not be adequately evaluated in terms of availability, quality, and effect of development on surface-water supplies. Now, however, with newly developed digital ground-water models, effects of development can be predicted. Such models have been used to predict hydrologic and quality changes under different stresses. These models have grown in complexity over the last ten years from simple one-layer models to three-dimensional simulations of ground-water flow, which may include solute transport, heat transport, effects of land subsidence, and encroachment of saltwater. Case histories illustrate how predictive ground-water models have provided the information needed for the sound planning and management of water resources in the USA. ?? 1983 D. Reidel Publishing Company.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"GeoJournal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF00194492","issn":"03432521","usgsCitation":"Moore, J., 1983, Ground-water models for water resource planning: GeoJournal, v. 7, no. 5, p. 453-458, https://doi.org/10.1007/BF00194492.","startPage":"453","endPage":"458","numberOfPages":"6","costCenters":[],"links":[{"id":205128,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00194492"},{"id":221582,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2c91e4b0c8380cd5bd02","contributors":{"authors":[{"text":"Moore, J.E.","contributorId":34927,"corporation":false,"usgs":true,"family":"Moore","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":360980,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011364,"text":"70011364 - 1983 - Tectonics and metallogenic provinces","interactions":[],"lastModifiedDate":"2019-12-19T08:45:04","indexId":"70011364","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","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":"Tectonics and metallogenic provinces","docAbstract":"Various theories have been advanced to explain the well-known uneven distribution of metals and ore-deposit types in space and time. Primordial differences in the mantle, preferential concentration of elements in the crust, the prevalence of ore-forming processes at certain times and (or) places, and combinations of one or several of these factors have all been called upon to account for the \"metallogenic provinces,\" which can be defined loosely as regions containing similar deposits of one or a group of metals or minerals. Because many, perhaps most, provinces have complex, multistage origins, the relative importance of inheritance vs. process is still controversial. In recent years the geographic relationship of many geologically young provinces to present-day plate-tectonic positions (accreting or consuming margins, intraplate structures, etc.) has been widely recognized, and the presumption is strong that older provinces had similar relationships to former plates. As most ore deposits resulted from a favorable conjunction of geological processes that are no longer operative, elucidation of their genesis requires reconstruction of the geologic history of the province, with particular emphasis on events coeval with mineralization. Tectonic analysis is an important aspect of this reconstruction; data from orbiting satellites have contributed greatly to this analysis, as the voluminous literature of the past decade testifies. Both the synoptic view of large areas and the ability to emphasize faint contrasts have revealed linear, curvilinear, and circular features not previously recognized from field studies. Some of these undoubtedly reflect basement structures that have contributed to the development, or limit the extent, of metallogenic provinces. Their recognition and delineation will be increasingly valuable to the assessment of resources available and as guides to exploration for the ores needed by future generations. ?? 1983.","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(83)90096-0","issn":"02731177","usgsCitation":"Guild, P.W., 1983, Tectonics and metallogenic provinces: Advances in Space Research, v. 3, no. 2, p. 9-16, https://doi.org/10.1016/0273-1177(83)90096-0.","productDescription":"8 p. ","startPage":"9","endPage":"16","numberOfPages":"8","costCenters":[],"links":[{"id":266029,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0273-1177(83)90096-0"},{"id":221169,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba486e4b08c986b3203e8","contributors":{"authors":[{"text":"Guild, P. W.","contributorId":39039,"corporation":false,"usgs":true,"family":"Guild","given":"P.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":360922,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011401,"text":"70011401 - 1983 - U-Th-Pb systematics of zircon inclusions in rock-forming minerals: A study of armoring against isotopic loss using the Sherman Granite of Colorado-Wyoming, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:18:29","indexId":"70011401","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","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":"U-Th-Pb systematics of zircon inclusions in rock-forming minerals: A study of armoring against isotopic loss using the Sherman Granite of Colorado-Wyoming, USA","docAbstract":"Zircon inclusions were separated from the five major rock-forming minerals of the Sherman Granite of southern Wyoming, in order to evaluate the degree of discordance as a possible function of host minerals. U-Th-Pb isotopic ratios were determined for two size fractions of zircon inclusions from each mineral, plus five size fractions from the bulk rock. Isotopic data from the inclusions have more than double the spread of data on a discordia obtained from the bulk sample, thereby yielding better-resolved concordia intercepts. However, isotopic ratios and morphologic characteristics indicate that the Pb/U systematics are complicated by inherited radiogenic lead. Although the data array cannot unequivocally be explained by the armoring process, the proposed methodology has succeeded in identifying groups of zircon with different isotopic characteristics. As such, this technique can be used to decipher complex geologic/isotopic histories and may be a useful addition to routine zircon geochronology. ?? 1983 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Contributions to Mineralogy and Petrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00371194","issn":"00107999","usgsCitation":"Aleinikoff, J.N., 1983, U-Th-Pb systematics of zircon inclusions in rock-forming minerals: A study of armoring against isotopic loss using the Sherman Granite of Colorado-Wyoming, USA: Contributions to Mineralogy and Petrology, v. 83, no. 3-4, p. 259-269, https://doi.org/10.1007/BF00371194.","startPage":"259","endPage":"269","numberOfPages":"11","costCenters":[],"links":[{"id":205055,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00371194"},{"id":220703,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"83","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb9e0e4b08c986b327e8e","contributors":{"authors":[{"text":"Aleinikoff, J. N. 0000-0003-3494-6841","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":75132,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"J.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":361008,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011334,"text":"70011334 - 1983 - Mapping the earthquake hazards of the Los Angeles region.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:29","indexId":"70011334","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1435,"text":"Earthquake Information Bulletin (USGS)","active":true,"publicationSubtype":{"id":10}},"title":"Mapping the earthquake hazards of the Los Angeles region.","docAbstract":"Discusses examples of fault, shaking and ground-failure hazards taken from recent studies of the Los Angeles region. These should provide an improved basis for delineating geographic variations in local earthquake hazards. -M.Barrett","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earthquake Information Bulletin (USGS)","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Ziony, J., and Tinsley, J.C., 1983, Mapping the earthquake hazards of the Los Angeles region.: Earthquake Information Bulletin (USGS), v. 15, no. 4, p. 134-141.","startPage":"134","endPage":"141","numberOfPages":"8","costCenters":[],"links":[{"id":220702,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"15","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a507fe4b0c8380cd6b713","contributors":{"authors":[{"text":"Ziony, J. I.","contributorId":24755,"corporation":false,"usgs":true,"family":"Ziony","given":"J. I.","affiliations":[],"preferred":false,"id":360858,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tinsley, J. C.","contributorId":65827,"corporation":false,"usgs":true,"family":"Tinsley","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":360859,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011193,"text":"70011193 - 1983 - The past is the key to the future","interactions":[],"lastModifiedDate":"2024-03-19T16:03:37.078914","indexId":"70011193","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","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 past is the key to the future","docAbstract":"A new major frontier of geological research, which was initiated in the 1970's, involves predicting future geologic trends or events through study of the present and past, rather than trying to understand the past, often using what one knows about the present. Like most scientific frontiers, this one began from practical considerations—environmental concerns. The lack of formal recognition of this frontier results from fragmentation among many Federal agencies and highly focused mission-oriented programs (e.g., earthquake prediction, CO2, nuclear-energy safety, etc.). Most programs aim to predict only the next 50–100 years, but much longer periods of the past need to be studied to do this. Nuclear-waste disposal has sometimes been considered in terms of the next million years, a period of time permitting significant and broad geologic changes. Decreasing public interest in environmental concerns relegates many questions from the realm of applied research back to that of basic research. Most of these questions are so fascinating, however, that the frontier is still worth pursuing. Such questions include whether a phenomenon will or will not take place and the rates at which it can develop (e.g., how fast do rifts form, how fast can a caldera event begin, and how quickly can a glacial maximum arrive?). Common elements of all studies include the historic record, trends in the Quaternary, analogues in various periods of the geologic time scale, and allowance for phenomena never experienced before. Other examples of studies include the Cretaceous as a period of a climatic extreme, an especially interesting time period; establishing the amount of paleocloudiness, a particularly challenging and important research area; acid rain as a possible new phenomenon. Geochemistry has much to contribute to this frontier science.
","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(83)90293-4","issn":"00167037","usgsCitation":"Doe, B.R., 1983, The past is the key to the future: Geochimica et Cosmochimica Acta, v. 47, no. 8, p. 1341-1354, https://doi.org/10.1016/0016-7037(83)90293-4.","productDescription":"14 p.","startPage":"1341","endPage":"1354","numberOfPages":"14","costCenters":[],"links":[{"id":221510,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bae7fe4b08c986b32413a","contributors":{"authors":[{"text":"Doe, B. R.","contributorId":52173,"corporation":false,"usgs":true,"family":"Doe","given":"B.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":360502,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011239,"text":"70011239 - 1983 - Geology of the Devonian black shales of the Appalachian basin","interactions":[],"lastModifiedDate":"2012-03-12T17:18:31","indexId":"70011239","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Geology of the Devonian black shales of the Appalachian basin","docAbstract":"Black shales of Devonian age in the Appalachian basin are a unique rock sequence. The high content of organic matter, which imparts the characteristic lithology, has for years attracted considerable interest in the shales as a possible source of energy. Concurrent with periodic and varied economic exploitations of the black shales are geologic studies. The recent energy shortage prompted the U.S. Department of Energy through the Eastern Gas Shales Project of the Morgantown Energy Technology Center to underwrite a research program to determine the geologic, geochemical, and structural characteristics of the Devonian black shales in order to enhance the recovery of gas from the shales. Geologic studies produced a regional stratigraphic network that correlates the 15-foot sequence in Tennessee with 3,000 feet of interbedded black and gray shales in central New York. The classic Devonian black-shale sequence in New York has been correlated with the Ohio Shale of Ohio and Kentucky and the Chattanooga Shale of Tennessee and southwestern Virginia. Biostratigraphic and lithostratigraphic markers in conjunction with gamma-ray logs facilitated long range correlations within the Appalachian basin and provided a basis for correlations with the black shales of the Illinois and Michigan basins. Areal distribution of selected shale units along with paleocurrent studies, clay mineralogy, and geochemistry suggests variations in the sediment source and transport directions. Current structures, faunal evidence, lithologic variations, and geochemical studies provide evidence to support interpretation of depositional environments. In addition, organic geochemical data combined with stratigraphic and structural characteristics of the shale within the basin allow an evaluation of the resource potential of natural gas in the Devonian shale sequence.","largerWorkTitle":"Preprints Symposia","language":"English","issn":"05693799","usgsCitation":"Roen, J., 1983, Geology of the Devonian black shales of the Appalachian basin, in Preprints Symposia, v. 28, no. 1.","startPage":"45","costCenters":[],"links":[{"id":221160,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"28","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2570e4b0c8380cd588e4","contributors":{"authors":[{"text":"Roen, J.B.","contributorId":85564,"corporation":false,"usgs":true,"family":"Roen","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":360640,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011296,"text":"70011296 - 1983 - Heat capacty, relative enthalpy, and calorimetric entropy of silicate minerals: an empirical method of prediction.","interactions":[],"lastModifiedDate":"2013-02-14T10:08:58","indexId":"70011296","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","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":"Heat capacty, relative enthalpy, and calorimetric entropy of silicate minerals: an empirical method of prediction.","docAbstract":"Through the evaluation of experimental calorimetric data and estimates of the molar isobaric heat capacities, relative enthalpies and entropies of constituent oxides, a procedure for predicting the thermodynamic properties of silicates is developed. Estimates of the accuracy and precision of the technique and examples of its application are also presented. -J.A.Z.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Mineralogist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Mineralogical Society of America","issn":"0003004X","usgsCitation":"Robinson, G., and Haas, J., 1983, Heat capacty, relative enthalpy, and calorimetric entropy of silicate minerals: an empirical method of prediction.: American Mineralogist, v. 68, no. 5-6, p. 541-553.","startPage":"541","endPage":"553","numberOfPages":"13","costCenters":[],"links":[{"id":221227,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":267374,"type":{"id":11,"text":"Document"},"url":"https://www.minsocam.org/ammin/AM68/AM68_541.pdf"}],"volume":"68","issue":"5-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2ff5e4b0c8380cd5d254","contributors":{"authors":[{"text":"Robinson, G.R. Jr. 0000-0002-9676-9564","orcid":"https://orcid.org/0000-0002-9676-9564","contributorId":6444,"corporation":false,"usgs":true,"family":"Robinson","given":"G.R.","suffix":"Jr.","affiliations":[],"preferred":false,"id":360766,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haas, J.L. Jr.","contributorId":31397,"corporation":false,"usgs":true,"family":"Haas","given":"J.L.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":360767,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011266,"text":"70011266 - 1983 - Selective preservation and origin of petroleum-forming aquatic kerogen","interactions":[],"lastModifiedDate":"2012-03-12T17:18:27","indexId":"70011266","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Selective preservation and origin of petroleum-forming aquatic kerogen","docAbstract":"Studies of a marine algal sapropel from Mangrove Lake, Bermuda, by 13C NMR and stable carbon isotopic methods show that precursors of aquatic kerogen (insoluble, macromolecular, paraffinic humic substances) are primary components of algae and possibly associated bacteria and that these substances survive microbial decomposition and are selectively preserved during early diagenesis. ?? 1983 Nature Publishing Group.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/305498a0","issn":"00280836","usgsCitation":"Hatcher, P.G., Spiker, E., Szeverenyi, N., and Maciel, G., 1983, Selective preservation and origin of petroleum-forming aquatic kerogen: Nature, v. 305, no. 5934, p. 498-501, https://doi.org/10.1038/305498a0.","startPage":"498","endPage":"501","numberOfPages":"4","costCenters":[],"links":[{"id":205063,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/305498a0"},{"id":220826,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"305","issue":"5934","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8ce0e4b08c986b31818b","contributors":{"authors":[{"text":"Hatcher, Patrick G.","contributorId":93625,"corporation":false,"usgs":true,"family":"Hatcher","given":"Patrick","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":360704,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Spiker, E.C.","contributorId":103275,"corporation":false,"usgs":true,"family":"Spiker","given":"E.C.","affiliations":[],"preferred":false,"id":360705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Szeverenyi, N.M.","contributorId":83663,"corporation":false,"usgs":true,"family":"Szeverenyi","given":"N.M.","email":"","affiliations":[],"preferred":false,"id":360703,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Maciel, G.E.","contributorId":43910,"corporation":false,"usgs":true,"family":"Maciel","given":"G.E.","email":"","affiliations":[],"preferred":false,"id":360702,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70011269,"text":"70011269 - 1983 - SOME NEW PROCESSING TECHNIQUES FOR THE IMPERIAL VALLEY 1979 AFTERSHOCKS.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:28","indexId":"70011269","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"SOME NEW PROCESSING TECHNIQUES FOR THE IMPERIAL VALLEY 1979 AFTERSHOCKS.","docAbstract":"This paper describes some of the features of the latest processing improvements that the U. S. Geological Survey (USGS) is currently applying to strong-motion accelerograms from the national network of permanent stations. At the same time it introduces the application of this processing to the set of Imperial Valley aftershocks recorded following the main shock of October 15, 1979. Earlier processing of the 22 main shock recordings provided corrected accelerations, velocity and displacement, response spectra, and Fourier spectra.","largerWorkTitle":"National Bureau of Standards, Special Publication","conferenceTitle":"Wind and Seismic Effects, Proceedings of the 14th Joint Panel Conference of the US-Japan Cooperative Program in Natural Resources.","conferenceLocation":"Washington, DC, USA","language":"English","publisher":"NBS","publisherLocation":"Washington, DC, USA","issn":"00831883","usgsCitation":"Brady, A.G., 1983, SOME NEW PROCESSING TECHNIQUES FOR THE IMPERIAL VALLEY 1979 AFTERSHOCKS., in National Bureau of Standards, Special Publication, Washington, DC, USA, p. 81-94.","startPage":"81","endPage":"94","numberOfPages":"14","costCenters":[],"links":[{"id":220829,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505aaf6fe4b0c8380cd875af","contributors":{"editors":[{"text":"Chung Riley M.Lew H.S.Kovacs William D.","contributorId":128431,"corporation":true,"usgs":false,"organization":"Chung Riley M.Lew H.S.Kovacs William D.","id":536242,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Brady, A. Gerald","contributorId":85959,"corporation":false,"usgs":true,"family":"Brady","given":"A.","email":"","middleInitial":"Gerald","affiliations":[],"preferred":false,"id":360712,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011215,"text":"70011215 - 1983 - Isotopic studies of mariposite-bearing rocks from the south- central Mother Lode, California.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:27","indexId":"70011215","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1154,"text":"California Geology","active":true,"publicationSubtype":{"id":10}},"title":"Isotopic studies of mariposite-bearing rocks from the south- central Mother Lode, California.","docAbstract":"Gold-bearing vein formation in the Mother Lode belt of the study area apparently occurred during the Early Cretaceous between 127 and 108 m.y. B.P. The hydrothermal fluids that carried the gold precipitated quartz and mariposite at approx 320oC, similar to the T of precipitation of gold-bearing quartz veins in the Allegheny district. The O- and H-isotopic composition calculated for the fluid indicate that it was similar to formation water or was metamorphic in origin. If the carbonate in the veins was in isotopic equilibrium with this same fluid, it apparently precipitated at a higher T of approx 400oC. The Sr in the carbonate is much less radiogenic than that in any known marine carbonate, but is similar in isotopic composition to that in metamorphosed mafic volcanic rocks of the general region. These mafic rocks could have been the source for the Sr in the hydrothermal veins. This observation supports the contention that the gold-mariposite-quartz-carbonate rocks were formed as an alteration product of serpentinite and other mafic igneous rocks.-A.P.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"California Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00264555","usgsCitation":"Kistler, R.W., Dodge, F.C., and Silberman, M., 1983, Isotopic studies of mariposite-bearing rocks from the south- central Mother Lode, California.: California Geology, v. 36, no. 9, p. 201-203.","startPage":"201","endPage":"203","numberOfPages":"3","costCenters":[],"links":[{"id":220758,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"36","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3fbbe4b0c8380cd6477f","contributors":{"authors":[{"text":"Kistler, R. W.","contributorId":36112,"corporation":false,"usgs":true,"family":"Kistler","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":360583,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dodge, F. C. W.","contributorId":18755,"corporation":false,"usgs":true,"family":"Dodge","given":"F.","email":"","middleInitial":"C. W.","affiliations":[],"preferred":false,"id":360582,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Silberman, M.L.","contributorId":10013,"corporation":false,"usgs":true,"family":"Silberman","given":"M.L.","affiliations":[],"preferred":false,"id":360581,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011207,"text":"70011207 - 1983 - RECENT DEVELOPMENTS ON THE ORIGIN OF MINERAL MATTER IN COAL.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:07","indexId":"70011207","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"RECENT DEVELOPMENTS ON THE ORIGIN OF MINERAL MATTER IN COAL.","docAbstract":"This study attempts to quantify some of the various origins of mineral matter. Data developed for the Upper Freeport coal bed indicates that mineral matter other than pyrite and calcite is primarily derived from the vegetal matter that ultimately became coal. Cathodoluminesence was used to verify that the quartz in the Upper Freeport coal is dominantly authigenic and not detrital in origin. Sulfur variability in coal beds of the central Appalachian Basin was investigated stratagraphically.","conferenceTitle":"Proceedings - 1983 International Conference on Coal Science.","conferenceLocation":"Pittsburgh, PA, USA","language":"English","usgsCitation":"Cecil, C.B., Stanton, R., Dulong, F., and Ruppert, L., 1983, RECENT DEVELOPMENTS ON THE ORIGIN OF MINERAL MATTER IN COAL., Proceedings - 1983 International Conference on Coal Science., Pittsburgh, PA, USA.","startPage":"381","costCenters":[],"links":[{"id":221738,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9332e4b0c8380cd80c7b","contributors":{"authors":[{"text":"Cecil, C. B. 0000-0002-9032-1689","orcid":"https://orcid.org/0000-0002-9032-1689","contributorId":62204,"corporation":false,"usgs":true,"family":"Cecil","given":"C.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":360556,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stanton, R.W.","contributorId":19164,"corporation":false,"usgs":true,"family":"Stanton","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":360555,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dulong, F.T.","contributorId":81490,"corporation":false,"usgs":true,"family":"Dulong","given":"F.T.","affiliations":[],"preferred":false,"id":360557,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ruppert, L.P.","contributorId":104628,"corporation":false,"usgs":true,"family":"Ruppert","given":"L.P.","email":"","affiliations":[],"preferred":false,"id":360558,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70011216,"text":"70011216 - 1983 - Helium isotopic variations in volcanic rocks from Loihi Seamount and the Island of Hawaii","interactions":[],"lastModifiedDate":"2020-09-26T21:56:15.70588","indexId":"70011216","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","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":"Helium isotopic variations in volcanic rocks from Loihi Seamount and the Island of Hawaii","docAbstract":"Helium isotopic ratios ranging from 20 to 32 times the atmospheric 3He 4He(RA) have been observed in a suite of 15 basaltic glasses from the Loihi Seamount. These ratios, which are up to four times higher than those of MORB glasses and more than twice those of nearby Kilauea, are strongly suggestive of a primitive source of volatiles supplying this volcanism. The Loihi glasses measured span a broad compositional range, and the 3He/4He ratios were found to be generally lower for the alkali basalts than for the tholeiites. The component with a lower 3He 4He ratio appears to be associated with olivine xenocrysts, within which fluid inclusions are probably the carrier of contaminant helium. One Loihi sample has a much lower isotopic ratio (<5 RA), but a combination of low He concentration, high vesicularity, and presence of cracks lined with clay minerals suggests that the low ratio is due to gas loss and contamination by atmospheric helium. Crushing and melting experiments show that for modest vesicularities (<5% by volume) the Loihi glasses obey a MORB-type partitioning trend, but at higher vesicularities the data show considerably more scatter due to volatile mobilization. The high vesicularities, low extrusion pressure and generally low helium concentrations are consistent with a considerable degree of degassing. Analyses of dunites, plus a correlation between total helium concentrations with xenocryst abundances also suggest that xenocrysts are a significant carrier of contaminating (low 3He 4He) helium. 3He 4He ratios from samples of other Hawaiian volcanoes (Kilauea, Mauna Loa, Hualalai, and Mauna Kea) show a smooth decrease in 3He 4He with increasing volcano age and volume. We interpret this to be a synoptic picture of the time evolution of a hot-spot diapir: the earliest stage is characterized by primitive (> 30 RA) helium with some (variable) component of lithospheric contamination added during \"breakthrough\", while the later stages are characterized by a relaxation toward lithospheric 3He 4He ratios (??? 8 RA) due to isolation of the diapir from the mantle below (as the plate moves on), and subsequent mining of the inherited helium and contamination from the surrounding lithosphere. The abrupt contrast in 3He 4He ratios between Kilauea and Loihi, despite their close proximity, is indicative of the small lateral extent of the plume. ?? 1983.","language":"English","publisher":"Elsevier","doi":"10.1016/0012-821X(83)90154-1","issn":"0012821X","usgsCitation":"Kurz, M., Jenkins, W., Hart, S., and Clague, D., 1983, Helium isotopic variations in volcanic rocks from Loihi Seamount and the Island of Hawaii: Earth and Planetary Science Letters, v. 66, no. C, p. 388-406, https://doi.org/10.1016/0012-821X(83)90154-1.","productDescription":"19 p.","startPage":"388","endPage":"406","numberOfPages":"19","costCenters":[],"links":[{"id":220822,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -156.62109374999997,\n 18.812717856407776\n ],\n [\n -154.522705078125,\n 18.812717856407776\n ],\n [\n -154.522705078125,\n 20.354927584117682\n ],\n [\n -156.62109374999997,\n 20.354927584117682\n ],\n [\n -156.62109374999997,\n 18.812717856407776\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"66","issue":"C","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3040e4b0c8380cd5d4a9","contributors":{"authors":[{"text":"Kurz, M.D.","contributorId":66845,"corporation":false,"usgs":true,"family":"Kurz","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":360585,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jenkins, W.J.","contributorId":101385,"corporation":false,"usgs":true,"family":"Jenkins","given":"W.J.","affiliations":[],"preferred":false,"id":360587,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hart, S.R.","contributorId":70921,"corporation":false,"usgs":true,"family":"Hart","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":360586,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Clague, David","contributorId":86388,"corporation":false,"usgs":true,"family":"Clague","given":"David","affiliations":[],"preferred":false,"id":360584,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70011409,"text":"70011409 - 1983 - The Chilean nitrate deposits.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:28","indexId":"70011409","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":743,"text":"American Scientist","active":true,"publicationSubtype":{"id":10}},"title":"The Chilean nitrate deposits.","docAbstract":"The nitrate deposits in the arid Atacama desert of northern Chile consist of saline-cemented surficial material, apparently formed in and near a playa lake that formerly covered the area. Many features of their distribution and chemical composition are unique. The author believes the principal sources of the saline constituents were the volcanic rocks of late Tertiary and Quaternary age in the Andes and that the nitrate is of organic origin. Possible sources of the nitrate, iodate, perchlorate and chromate are discussed. -J.J.Robertson","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Scientist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00030996","usgsCitation":"Ericksen, G.E., 1983, The Chilean nitrate deposits.: American Scientist, v. 71, no. 4, p. 366-374.","startPage":"366","endPage":"374","numberOfPages":"9","costCenters":[],"links":[{"id":220771,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba6cae4b08c986b32128f","contributors":{"authors":[{"text":"Ericksen, G. E.","contributorId":44538,"corporation":false,"usgs":true,"family":"Ericksen","given":"G.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":361018,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70012116,"text":"70012116 - 1983 - ROLES OF REMOTE SENSING AND CARTOGRAPHY IN THE USGS NATIONAL MAPPING DIVISION.","interactions":[],"lastModifiedDate":"2012-03-12T17:19:04","indexId":"70012116","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"ROLES OF REMOTE SENSING AND CARTOGRAPHY IN THE USGS NATIONAL MAPPING DIVISION.","docAbstract":"The inseparable roles of remote sensing and photogrammetry have been recognized to be consistent with the aims and interests of the American Society of Photogrammetry. In particular, spatial data storage, data merging and manipulation methods and other techniques originally developed for remote sensing applications also have applications for digital cartography. Also, with the introduction of much improved digital processing techniques, even relatively low resolution (80 m) traditional Landsat images can now be digitally mosaicked into excellent quality 1:250,000-scale image maps.","largerWorkTitle":"Technical Papers of the American Congress of Surveying and Mapping","conferenceTitle":"Technical Papers of the 43rd Annual Meeting of the American Congress on Surveying and Mapping.","conferenceLocation":"Washington, DC, USA","language":"English","publisher":"American Congress on Surveying & Mapping","publisherLocation":"Falls Church, VA, USA","usgsCitation":"Southard, R.B., and Salisbury, J.W., 1983, ROLES OF REMOTE SENSING AND CARTOGRAPHY IN THE USGS NATIONAL MAPPING DIVISION., in Technical Papers of the American Congress of Surveying and Mapping, Washington, DC, USA.","startPage":"665","costCenters":[],"links":[{"id":222054,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a936de4b0c8380cd80df3","contributors":{"authors":[{"text":"Southard, Rupert B.","contributorId":17371,"corporation":false,"usgs":true,"family":"Southard","given":"Rupert","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":362770,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Salisbury, John W.","contributorId":96420,"corporation":false,"usgs":true,"family":"Salisbury","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":362771,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1004072,"text":"1004072 - 1983 - Neoplasms identified in free-flying birds","interactions":[],"lastModifiedDate":"2018-02-27T15:09:09","indexId":"1004072","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":948,"text":"Avian Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Neoplasms identified in free-flying birds","docAbstract":"Nine neoplasms were identified in carcasses of free-flying wild birds received at the National Wildlife Health Laboratory; gross and microscopic descriptions are reported herein. The prevalence of neoplasia in captive and free-flying birds is discussed, and lesions in the present cases are compared with those previously described in mammals and birds.
","language":"English","publisher":"American Association of Avian Pathologists","doi":"10.2307/1590375","usgsCitation":"Siegfried, L.M., 1983, Neoplasms identified in free-flying birds: Avian Diseases, v. 27, no. 1, p. 86-99, https://doi.org/10.2307/1590375.","productDescription":"14 p.","startPage":"86","endPage":"99","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":131111,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49fbe4b07f02db5f4b32","contributors":{"authors":[{"text":"Siegfried, Lynne M.","contributorId":53732,"corporation":false,"usgs":true,"family":"Siegfried","given":"Lynne","email":"","middleInitial":"M.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":false,"id":315098,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011358,"text":"70011358 - 1983 - Rainfall intensity-duration-frequency formulas.","interactions":[],"lastModifiedDate":"2013-03-16T07:56:29","indexId":"70011358","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2338,"text":"Journal of Hydraulic Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Rainfall intensity-duration-frequency formulas.","docAbstract":"A new general rainfall intensity-duration-frequency formula is presented, utilizing a method similar to, but more accurate than one previously developed. The previously developed formula was based on the average depth-duration ratio of about 40% and the mean depth-frequency ratio of 1.48. It is shown that this formula is only a particular form of the writer's more general formulation. -from Author","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydraulic Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"ASCE","doi":"10.1061/(ASCE)0733-9429(1983)109:12(1603)","usgsCitation":"Chen, C., 1983, Rainfall intensity-duration-frequency formulas.: Journal of Hydraulic Engineering, v. 109, no. 12, p. 1603-1621, https://doi.org/10.1061/(ASCE)0733-9429(1983)109:12(1603).","startPage":"1603","endPage":"1621","numberOfPages":"19","costCenters":[],"links":[{"id":221107,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269432,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1061/(ASCE)0733-9429(1983)109:12(1603)"}],"volume":"109","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9460e4b0c8380cd8138d","contributors":{"authors":[{"text":"Chen, Chiu-Lan","contributorId":100979,"corporation":false,"usgs":true,"family":"Chen","given":"Chiu-Lan","email":"","affiliations":[],"preferred":false,"id":360909,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011305,"text":"70011305 - 1983 - Rehabilitation materials from surface- coal mines in western USA. I. Chemical characteristics of spoil and replaced cover-soil.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:29","indexId":"70011305","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3239,"text":"Reclamation and Revegetation Research","active":true,"publicationSubtype":{"id":10}},"title":"Rehabilitation materials from surface- coal mines in western USA. I. Chemical characteristics of spoil and replaced cover-soil.","docAbstract":"A range of at least one order of magnitude was observed for DTPA-extractable Cd, Cu, Fe, Mn, Ni, Pb and Zn and organic matter content of samples of spoil and cover-soil from eleven western USA surface-coal mines. The observed pH of these samples ranged from 3.9 to 8.9; however, most samples were near-neutral to alkaline in reaction. Most constituent levels were found to be below proposed guidelines for maximum permissible levels in mine soil. -from Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Reclamation and Revegetation Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Severson, R.C., and Gough, L.P., 1983, Rehabilitation materials from surface- coal mines in western USA. I. Chemical characteristics of spoil and replaced cover-soil.: Reclamation and Revegetation Research, v. 2, no. 2, p. 83-102.","startPage":"83","endPage":"102","numberOfPages":"20","costCenters":[],"links":[{"id":221357,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a5fde4b0e8fec6cdc052","contributors":{"authors":[{"text":"Severson, R. C.","contributorId":46498,"corporation":false,"usgs":true,"family":"Severson","given":"R.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":360788,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gough, L. P.","contributorId":64198,"corporation":false,"usgs":true,"family":"Gough","given":"L.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":360789,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011410,"text":"70011410 - 1983 - USES OF MARKETING TECHNIQUES THE U. S. GEOLOGICAL SURVEY.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:29","indexId":"70011410","displayToPublicDate":"1983-01-01T00:00:00","publicationYear":"1983","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"USES OF MARKETING TECHNIQUES THE U. S. GEOLOGICAL SURVEY.","docAbstract":"The use of marketing techniques by government agencies to provide more efficient and effective dissemination of their information is a fairly recent development. A recessive economy, and increased scrutiny of operations have become a powerful incentive to maximize revenues and minimize expenses wherever possible as long as the primary mission of public service is satisfactorily met.","largerWorkTitle":"Technical Papers of the American Congress of Surveying and Mapping","conferenceTitle":"Technical Papers of the 43rd Annual Meeting of the American Congress on Surveying and Mapping.","conferenceLocation":"Washington, DC, USA","language":"English","publisher":"American Congress on Surveying & Mapping","publisherLocation":"Falls Church, VA, USA","usgsCitation":"McDermott, M.P., 1983, USES OF MARKETING TECHNIQUES THE U. S. GEOLOGICAL SURVEY., in Technical Papers of the American Congress of Surveying and Mapping, Washington, DC, USA, p. 300-306.","startPage":"300","endPage":"306","numberOfPages":"7","costCenters":[],"links":[{"id":220772,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbb83e4b08c986b328686","contributors":{"authors":[{"text":"McDermott, Michael P. mmcdermo@usgs.gov","contributorId":259,"corporation":false,"usgs":true,"family":"McDermott","given":"Michael","email":"mmcdermo@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":361019,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}