{"pageNumber":"4366","pageRowStart":"109125","pageSize":"25","recordCount":184900,"records":[{"id":70016615,"text":"70016615 - 1991 - Strontium isotopic constraints on the origin of ore-forming fluids of the Viburnum Trend, southeast Missouri","interactions":[],"lastModifiedDate":"2024-04-12T14:52:17.71729","indexId":"70016615","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","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":"Strontium isotopic constraints on the origin of ore-forming fluids of the Viburnum Trend, southeast Missouri","docAbstract":"

We have measured 87Sr86Sr\">87Sr86Sr and Rb and Sr concentrations in several minerals, primarily sulfides, spanning the paragenesis of hydrothermal mineralization in the Viburnum Trend in southeast Missouri. Separate measurements were made for fluid inclusions opened by crushing or thermal decrepitation and for the solids. For comparison, measurements were also made on samples of probable local aquifers, the Bonneterre Formation and the Lamotte Sandstone. For some of the samples, concentrations of K, Ca, Cl, Na, and Mg are also reported.

In several cases 87Sr86Srratios\">87Sr86Srratios are different (higher) in the solids than in the fluid inclusions. We have investigated the possibility that either type of sample gives spurious results, e.g., that the fluid inclusions are secondary or contaminated by host dolomite, or that Sr in the solids reflects a detrital rather than an authigenic source. Consideration of mass balance, overall solute chemistry, and examination of non-sulfide dissolution residue, however, suggests that both types of sample reflect primary fluid Sr composition. We thus adopt the working hypothesis that Sr isotopic composition in fluids at the time of hydrothermal mineralization was highly variable.

The observed results for the Viburnum Trend do not conform well to expected trends for Mississippi Valley-type (MVT) mineralization based primarily on analyses of gangue carbonates, barite, and fluorite. Fluid inclusion Sr in some of the Viburnum Trend samples is more radiogenic than in the host dolomite but only moderately so; in other samples, notably main-stage octahedral galena, fluid inclusion Sr composition is within the range observed for the host dolomite. In contrast, Sr in some of the sulfides is very radiogenic, much more so than previously reported for MVT minerals, and is very radiogenic early in the paragenesis (pyrite, chalcopyrite, sphalerite), less radiogenic during main-stage ore deposition, and again more radiogenic in later paragenetic stages.

","language":"English","publisher":"Elsevier","doi":"10.1016/0016-7037(91)90317-X","issn":"00167037","usgsCitation":"Brannon, J., Podosek, F., Viets, J., Leach, D.L., Goldhabe, M., and Rowan, E., 1991, Strontium isotopic constraints on the origin of ore-forming fluids of the Viburnum Trend, southeast Missouri: Geochimica et Cosmochimica Acta, v. 55, no. 5, p. 1407-1419, https://doi.org/10.1016/0016-7037(91)90317-X.","productDescription":"13 p.","startPage":"1407","endPage":"1419","numberOfPages":"13","costCenters":[],"links":[{"id":224932,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9bb5e4b08c986b31d041","contributors":{"authors":[{"text":"Brannon, J.C.","contributorId":56516,"corporation":false,"usgs":true,"family":"Brannon","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":374044,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Podosek, F.A.","contributorId":56802,"corporation":false,"usgs":true,"family":"Podosek","given":"F.A.","email":"","affiliations":[],"preferred":false,"id":374045,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Viets, J.G.","contributorId":82300,"corporation":false,"usgs":true,"family":"Viets","given":"J.G.","affiliations":[],"preferred":false,"id":374047,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Leach, D. L.","contributorId":18758,"corporation":false,"usgs":true,"family":"Leach","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":374042,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Goldhabe, M.","contributorId":77423,"corporation":false,"usgs":true,"family":"Goldhabe","given":"M.","email":"","affiliations":[],"preferred":false,"id":374046,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Rowan, E. L. 0000-0001-5753-6189","orcid":"https://orcid.org/0000-0001-5753-6189","contributorId":34921,"corporation":false,"usgs":true,"family":"Rowan","given":"E. L.","affiliations":[],"preferred":false,"id":374043,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70016840,"text":"70016840 - 1991 - Paleomagnetic evidence for the age and extent of middle Tertiary counterclockwise rotation, Dixie Valley region, west central Nevada","interactions":[],"lastModifiedDate":"2024-04-26T11:20:36.885189","indexId":"70016840","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","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":"Paleomagnetic evidence for the age and extent of middle Tertiary counterclockwise rotation, Dixie Valley region, west central Nevada","docAbstract":"

Paleomagnetic data obtained from Oligocene to lower Miocene igneous rocks and middle Miocene basaltic rocks at fifteen localities from a region surrounding Dixie Valley in west central Nevada indicate that parts of the area experienced counterclockwise vertical-axis rotation, and these data provide constraints on the extent and timing of rotation. Counterclockwise vertical-axis rotation probably exceeding 30° is indicated for Oligocene to lower Miocene rocks in the central part of the study area. Calculated rotations increase with increasing age of the Oligocene to lower Miocene rocks, indicating that vertical-axis rotation was concurrent with ash-flow deposition (about 23–33 Ma). Paleomagnetic data indicate that middle Miocene basaltic rocks (about 10–17 Ma) postdate significant counterclockwise vertical-axis rotation, although this interpretation is complicated because the rocks were erupted episodically in pulses that apparently were short lived with respect to geomagnetic secular variation. Counterclockwise rotation was related to a deformation event that predated development of the present basin and range physiography of the area. The total amount of crustal rotation in Tertiary time in the area is poorly known. Rotation estimates calculated from time-averaged mean directions that incorporate data from a broad range of the Oligocene to lower Miocene units probably underestimate total Tertiary rotation because the mean directions include data from units that postdate much of the rotation. For example, a rotation estimate for a composite sequence from the central part of the study area is −23° ± 15°, whereas estimates from older and younger halves of the sequence are −37° ± 21° and −11° ± 16°, respectively. Paleomagnetic data indicate that Oligocene to lower Miocene rocks at some localities in the northern and southern parts of the study area (e.g., the Golconda Canyon locality) probably did not experience significant Tertiary counterclockwise rotation. Although the paleomagnetic data alone are insufficient to fully define the geographic area subjected to Tertiary counterclockwise rotation, the data suggest that a discrete subregion was affected rather than the entire Basin and Range province.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/90JB02424","issn":"01480227","usgsCitation":"Hudson, M., and Geissman, J.W., 1991, Paleomagnetic evidence for the age and extent of middle Tertiary counterclockwise rotation, Dixie Valley region, west central Nevada: Journal of Geophysical Research, v. 96, no. B3, p. 3979-4006, https://doi.org/10.1029/90JB02424.","productDescription":"28 p.","startPage":"3979","endPage":"4006","numberOfPages":"28","costCenters":[],"links":[{"id":225083,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"B3","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a740ee4b0c8380cd773f6","contributors":{"authors":[{"text":"Hudson, M.R.","contributorId":68317,"corporation":false,"usgs":true,"family":"Hudson","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":374635,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Geissman, J. W.","contributorId":105760,"corporation":false,"usgs":true,"family":"Geissman","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":374636,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016456,"text":"70016456 - 1991 - Boromuscovite, a new member of the mica group, from the Little Three mine pegmatite, Ramona district, San Diego County, California","interactions":[],"lastModifiedDate":"2012-03-12T17:18:43","indexId":"70016456","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","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":"Boromuscovite, a new member of the mica group, from the Little Three mine pegmatite, Ramona district, San Diego County, California","docAbstract":"Boromuscovite, ideally KAl2(Si3B)O10(OH,F)2, in which [4]Al is replaced by B relative to muscovite, occurs as a late-stage, postpocket rupture mineral within the New Spaulding Pocket, main Little Three pegmatite dike. The mineral is white to cream colored and occurs as a porcelaneous veneer and coating on primary minerals. The average grain size is less than 3-4 ??m, but the coatings may be as much as 1 cm or more thick. Fragments of topaz, albite, elbaite, and other pocket minerals are included in the coating. The boromuscovite precipitated from a late-stage hydothermal fluid; it occurs only as a snowlike coating. Chemical composition, unit-cell parameters, Mohs hardness, cleavage, fracture, and optical properties are reported. -from Authors","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Mineralogist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"0003004X","usgsCitation":"Foord, E., Martin, R., Fitzpatrick, J.J., Taggart, J., and Crock, J., 1991, Boromuscovite, a new member of the mica group, from the Little Three mine pegmatite, Ramona district, San Diego County, California: American Mineralogist, v. 76, no. 11-12, p. 1998-2002.","startPage":"1998","endPage":"2002","numberOfPages":"5","costCenters":[],"links":[{"id":223166,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"76","issue":"11-12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f21fe4b0c8380cd4b001","contributors":{"authors":[{"text":"Foord, E.E.","contributorId":86835,"corporation":false,"usgs":true,"family":"Foord","given":"E.E.","email":"","affiliations":[],"preferred":false,"id":373597,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Martin, R.F.","contributorId":69305,"corporation":false,"usgs":true,"family":"Martin","given":"R.F.","email":"","affiliations":[],"preferred":false,"id":373596,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fitzpatrick, J. J.","contributorId":95078,"corporation":false,"usgs":true,"family":"Fitzpatrick","given":"J.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":373598,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Taggart, J.E. Jr.","contributorId":51301,"corporation":false,"usgs":true,"family":"Taggart","given":"J.E.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":373594,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Crock, J.G.","contributorId":58236,"corporation":false,"usgs":true,"family":"Crock","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":373595,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70016383,"text":"70016383 - 1991 - Tidal stirring and phytoplankton bloom dynamics in an estuary","interactions":[],"lastModifiedDate":"2016-07-27T10:56:00","indexId":"70016383","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2379,"text":"Journal of Marine Research","active":true,"publicationSubtype":{"id":10}},"title":"Tidal stirring and phytoplankton bloom dynamics in an estuary","docAbstract":"

In South San Francisco Bay, estuarine phytoplankton biomass fluctuates at the time scale of days to weeks; much of this variability is associated with fluctuations in tidal energy. During the spring seasons of every year from 1980-1990, episodic blooms occurred in which phytoplankton biomass rose from a baseline of 2-4mg chlorophyll a m-3, peaked at 20-40 chlorophyll a m-3, then returned to baseline values, all within several weeks. Each episode of biomass increase occurred during neap tides, and each bloom decline coincided with spring tides. This suggests that daily variations in the rate of vertical mixing by tidal stirring might control phytoplankton bloom dynamics in some estuaries. Simulation experiments with a numerical model of phytoplankton population dynamics support this hypothesis. -from Author

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Marine Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00222402","usgsCitation":"Cloern, J., 1991, Tidal stirring and phytoplankton bloom dynamics in an estuary: Journal of Marine Research, v. 49, no. 1, p. 203-221.","startPage":"203","endPage":"221","numberOfPages":"19","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":222852,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb37be4b08c986b325df3","contributors":{"authors":[{"text":"Cloern, J. E.","contributorId":59453,"corporation":false,"usgs":true,"family":"Cloern","given":"J. E.","affiliations":[],"preferred":false,"id":373334,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016457,"text":"70016457 - 1991 - Heat capacities and entropies of sillimanite, fibrolite, andalusite, kyanite, and quartz and the Al2SiO5 phase diagram","interactions":[],"lastModifiedDate":"2012-03-12T17:18:43","indexId":"70016457","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","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 capacities and entropies of sillimanite, fibrolite, andalusite, kyanite, and quartz and the Al2SiO5 phase diagram","docAbstract":"Low-temperature heat capacities for sillimanite, fibrolite, and both fine-grained and coarse-grained quartz have been measured. Superambient heat capacities have been measured for four sillimanite, two andalusite, one kyanite, and two fibrolite samples. Equations are recommended for the temperature dependence of the heat capacities of kyanite, andalusite, sillimanite, and fibrolite. The heat capacity functions have been combined with thermal expansion (fibrolite and sillimanite reported here), enthalpy of solution, and phase equilibrium data in order to construct a phase diagram for the Al2SiO5 polymorphs. -from Authors","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., Evans, H.T., and Kerrick, D.M., 1991, Heat capacities and entropies of sillimanite, fibrolite, andalusite, kyanite, and quartz and the Al2SiO5 phase diagram: American Mineralogist, v. 76, no. 9-10, p. 1597-1613.","startPage":"1597","endPage":"1613","numberOfPages":"17","costCenters":[],"links":[{"id":223167,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"76","issue":"9-10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2fe9e4b0c8380cd5d1d5","contributors":{"authors":[{"text":"Hemingway, B. S.","contributorId":7268,"corporation":false,"usgs":true,"family":"Hemingway","given":"B.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":373599,"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":373602,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Evans, H. T. Jr.","contributorId":41859,"corporation":false,"usgs":true,"family":"Evans","given":"H.","suffix":"Jr.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":373600,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kerrick, Derrill M.","contributorId":68883,"corporation":false,"usgs":true,"family":"Kerrick","given":"Derrill","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":373601,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70016343,"text":"70016343 - 1991 - The neutral oil in commercial linear alkylbenzenesulfonate and its effect on organic solute solubility in water","interactions":[],"lastModifiedDate":"2023-10-19T01:21:18.751516","indexId":"70016343","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"The neutral oil in commercial linear alkylbenzenesulfonate and its effect on organic solute solubility in water","docAbstract":"

No abstract available.

","language":"English","publisher":"American Chemical Society","doi":"10.1021/es00016a008","issn":"0013936X","usgsCitation":"Chiou, C.T., Kile, D.E., and Rutherford, D., 1991, The neutral oil in commercial linear alkylbenzenesulfonate and its effect on organic solute solubility in water: Environmental Science & Technology, v. 25, no. 4, p. 660-665, https://doi.org/10.1021/es00016a008.","productDescription":"6 p.","startPage":"660","endPage":"665","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":223107,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"4","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"505bae10e4b08c986b323ee7","contributors":{"authors":[{"text":"Chiou, C. T.","contributorId":97080,"corporation":false,"usgs":true,"family":"Chiou","given":"C.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":373231,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kile, D. E.","contributorId":22758,"corporation":false,"usgs":true,"family":"Kile","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":373230,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rutherford, D.W.","contributorId":21244,"corporation":false,"usgs":true,"family":"Rutherford","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":373229,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016430,"text":"70016430 - 1991 - Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California","interactions":[{"subject":{"id":20452,"text":"ofr90573 - 1990 - Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California","indexId":"ofr90573","publicationYear":"1990","noYear":false,"title":"Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California"},"predicate":"SUPERSEDED_BY","object":{"id":70016430,"text":"70016430 - 1991 - Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California","indexId":"70016430","publicationYear":"1991","noYear":false,"title":"Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California"},"id":1}],"lastModifiedDate":"2018-09-25T11:10:14","indexId":"70016430","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California","docAbstract":"The occurrence of selenium in agricultural drain water from the western San Joaquin Valley, California, has focused concern on the semiconfined ground-water flow system, which is underlain by the Corcoran Clay Member of the Tulare Formation. A two-step procedure is used to calibrate a preliminary model of the system for the purpose of determining the steady-state hydraulic properties. Horizontal and vertical hydraulic conductivities are modeled as functions of the percentage of coarse sediment, hydraulic conductivities of coarse-textured (Kcoarse) and fine-textured (Kfine) end members, and averaging methods used to calculate equivalent hydraulic conductivities. The vertical conductivity of the Corcoran (Kcorc) is an additional parameter to be evaluated.\n\nIn the first step of the calibration procedure, the model is run by systematically varying the following variables: (1) Kcoarse/Kfine, (2) Kcoarse/Kcorc, and (3) choice of averaging methods in the horizontal and vertical directions. Root mean square error and bias values calculated from the model results are functions of these variables. These measures of error provide a means for evaluating model sensitivity and for selecting values of Kcoarse, Kfine, and Kcorc for use in the second step of the calibration procedure. In the second step, recharge rates are evaluated as functions of Kcoarse, Kcorc, and a combination of averaging methods. The associated Kfine values are selected so that the root mean square error is minimized on the basis of the results from the first step.\n\nThe results of the two-step procedure indicate that the spatial distribution of hydraulic conductivity that best produces the measured hydraulic head distribution is created through the use of arithmetic averaging in the horizontal direction and either geometric or harmonic averaging in the vertical direction. The equivalent hydraulic conductivities resulting from either combination of averaging methods compare favorably to field- and laboratory-based values.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.1991.tb00562.x","issn":"0017467X","usgsCitation":"Phillips, S.P., and Belitz, K., 1991, Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California: Ground Water, v. 29, no. 5, p. 702-715, https://doi.org/10.1111/j.1745-6584.1991.tb00562.x.","productDescription":"14 p.","startPage":"702","endPage":"715","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":222971,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":272974,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.1991.tb00562.x"}],"country":"United States","state":"California","otherGeospatial":"San Joaquin Valley","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -121.8438,35.0589 ], [ -121.8438,38.1663 ], [ -118.6734,38.1663 ], [ -118.6734,35.0589 ], [ -121.8438,35.0589 ] ] ] } } ] }","volume":"29","issue":"5","noUsgsAuthors":false,"publicationDate":"2005-08-04","publicationStatus":"PW","scienceBaseUri":"5059f315e4b0c8380cd4b5b6","contributors":{"authors":[{"text":"Phillips, Steven P. 0000-0002-5107-868X sphillip@usgs.gov","orcid":"https://orcid.org/0000-0002-5107-868X","contributorId":1506,"corporation":false,"usgs":true,"family":"Phillips","given":"Steven","email":"sphillip@usgs.gov","middleInitial":"P.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":373491,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Belitz, Kenneth 0000-0003-4481-2345 kbelitz@usgs.gov","orcid":"https://orcid.org/0000-0003-4481-2345","contributorId":442,"corporation":false,"usgs":true,"family":"Belitz","given":"Kenneth","email":"kbelitz@usgs.gov","affiliations":[{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":376,"text":"Massachusetts Water Science Center","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true}],"preferred":true,"id":373490,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016754,"text":"70016754 - 1991 - Mesh-size effects on drift sample composition as determined with a triple net sampler","interactions":[],"lastModifiedDate":"2012-03-12T17:18:51","indexId":"70016754","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1919,"text":"Hydrobiologia","onlineIssn":"1573-5117","printIssn":"0018-8158","active":true,"publicationSubtype":{"id":10}},"title":"Mesh-size effects on drift sample composition as determined with a triple net sampler","docAbstract":"Nested nets of three different mesh apertures were used to study mesh-size effects on drift collected in a small mountain stream. The innermost, middle, and outermost nets had, respectively, 425 ??m, 209 ??m and 106 ??m openings, a design that reduced clogging while partitioning collections into three size groups. The open area of mesh in each net, from largest to smallest mesh opening, was 3.7, 5.7 and 8.0 times the area of the net mouth. Volumes of filtered water were determined with a flowmeter. The results are expressed as (1) drift retained by each net, (2) drift that would have been collected by a single net of given mesh size, and (3) the percentage of total drift (the sum of the catches from all three nets) that passed through the 425 ??m and 209 ??m nets. During a two day period in August 1986, Chironomidae larvae were dominant numerically in all 209 ??m and 106 ??m samples and midday 425 ??m samples. Large drifters (Ephemerellidae) occurred only in 425 ??m or 209 ??m nets, but the general pattern was an increase in abundance and number of taxa with decreasing mesh size. Relatively more individuals occurred in the larger mesh nets at night than during the day. The two larger mesh sizes retained 70% of the total sediment/detritus in the drift collections, and this decreased the rate of clogging of the 106 ??m net. If an objective of a sampling program is to compare drift density or drift rate between areas or sampling dates, the same mesh size should be used for all sample collection and processing. The mesh aperture used for drift collection should retain all species and life stages of significance in a study. The nested net design enables an investigator to test the adequacy of drift samples. ?? 1991 Kluwer Academic Publishers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrobiologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF00015344","issn":"00188158","usgsCitation":"Slack, K.V., Tilley, L.J., and Kennelly, S., 1991, Mesh-size effects on drift sample composition as determined with a triple net sampler: Hydrobiologia, v. 209, no. 3, p. 215-226, https://doi.org/10.1007/BF00015344.","startPage":"215","endPage":"226","numberOfPages":"12","costCenters":[],"links":[{"id":205535,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00015344"},{"id":224702,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"209","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5440e4b0c8380cd6cf14","contributors":{"authors":[{"text":"Slack, K. V.","contributorId":82386,"corporation":false,"usgs":true,"family":"Slack","given":"K.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":374408,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tilley, L. J.","contributorId":91836,"corporation":false,"usgs":true,"family":"Tilley","given":"L.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":374409,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kennelly, S.S.","contributorId":75697,"corporation":false,"usgs":true,"family":"Kennelly","given":"S.S.","email":"","affiliations":[],"preferred":false,"id":374407,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016753,"text":"70016753 - 1991 - Geological and seismological evidence of increased explosivity during the 1986 eruptions of Pavlof volcano, Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:18:50","indexId":"70016753","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Geological and seismological evidence of increased explosivity during the 1986 eruptions of Pavlof volcano, Alaska","docAbstract":"We present results of study of the best-documented eruptions of Pavlof volcano in historic time. The 1986 eruptions were mostly Strombolian in character; a strong initial phase may have been Vulcanian. The 1986 activity erupted at least 8??106 m3 of feldspar-phyric basaltic andesite lava (SiO2=53-54%), and a comparable volume of wind-borne tephra. During the course of the eruption, 5300 explosion earthquakes occurred, the largest of which was equivalent to an ML=2.5 earthquake. Volcanic tremor was recorded for 2600 hours, and the strongest tremor was recorded out to a distance of 160 km and had an amplitude of at least 54 cm2 reduced displacement. The 1986 eruptions modified the structure of the vent area for the first time in over two decades. A possible pyroclastic flow was observed on 19 June 1986, the first time such a phenomenon has been observed at the volcano. Overall, the 1986 eruptions were the strongest and longest duration eruptions in historic time, and changed a temporal pattern of activity that had persisted from 1973-1984. ?? 1991 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Volcanology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00265414","issn":"02588900","usgsCitation":"McNutt, S., Miller, T.P., and Taber, J., 1991, Geological and seismological evidence of increased explosivity during the 1986 eruptions of Pavlof volcano, Alaska: Bulletin of Volcanology, v. 53, no. 2, p. 86-98, https://doi.org/10.1007/BF00265414.","startPage":"86","endPage":"98","numberOfPages":"13","costCenters":[],"links":[{"id":205534,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00265414"},{"id":224701,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"53","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2256e4b0c8380cd56f5d","contributors":{"authors":[{"text":"McNutt, S.R.","contributorId":26722,"corporation":false,"usgs":true,"family":"McNutt","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":374405,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, T. P.","contributorId":49345,"corporation":false,"usgs":true,"family":"Miller","given":"T.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":374406,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Taber, J.J.","contributorId":14124,"corporation":false,"usgs":true,"family":"Taber","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":374404,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016385,"text":"70016385 - 1991 - Relation between the national handbook of recommended methods for water data acquisition and ASTM standards","interactions":[],"lastModifiedDate":"2018-03-12T11:15:44","indexId":"70016385","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Relation between the national handbook of recommended methods for water data acquisition and ASTM standards","docAbstract":"

In the late 1950's, intense demands for water and growing concerns about declines in the quality of water generated the need for more water-resources data. About thirty Federal agencies, hundreds of State, county and local agencies, and many private organizations had been collecting water data. However, because of differences in procedures and equipment, many of the data bases were incompatible. In 1964, as a step toward establishing more uniformity, the Bureau of the Budget (now the Office of Management and Budget, OMB) issued 'Circular A-67' which presented guidelines for collecting water data and also served as a catalyst for creating the Office of Water Data Coordination (OWDC) within the U.S. Geological Survey. This paper discusses past, present, and future aspects of the relation between methods in the National Handbook and standards published by ASTM (American Society for Testing and Materials) Committee D-19 on Water's Subcommittee D-19.07 on Sediment, Geomorphology, and Open Channel Flow. The discussion also covers historical aspects of standards - development work jointly conducted by OWDC and ASTM.

","largerWorkTitle":"ASTM Special Technical Publication","conferenceTitle":"Monitoring Water in the 1990's: Meeting New Challenges","conferenceDate":"11-14 June 1990","conferenceLocation":"Denver, CO, USA","language":"English","publisher":"Publ by ASTM","publisherLocation":"Philadelphia, PA, United States","issn":"00660558","isbn":"0803114079","usgsCitation":"Glysson, G.D., and Skinner, J.V., 1991, Relation between the national handbook of recommended methods for water data acquisition and ASTM standards, in ASTM Special Technical Publication, no. 1102, Denver, CO, USA, 11-14 June 1990, p. 291-300.","productDescription":"10 p.","startPage":"291","endPage":"300","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":222906,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"issue":"1102","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"50e4a64ae4b0e8fec6cdc16a","contributors":{"authors":[{"text":"Glysson, G. Douglas","contributorId":13607,"corporation":false,"usgs":true,"family":"Glysson","given":"G.","email":"","middleInitial":"Douglas","affiliations":[],"preferred":false,"id":373336,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Skinner, John V.","contributorId":25297,"corporation":false,"usgs":true,"family":"Skinner","given":"John","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":373337,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70016633,"text":"70016633 - 1991 - Comment on \"Mid-ocean ridge popping rocks: implications for degassing at ridge crests\" by P. Sarda and D. Graham","interactions":[],"lastModifiedDate":"2023-12-09T14:59:20.830752","indexId":"70016633","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","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":"Comment on \"Mid-ocean ridge popping rocks: implications for degassing at ridge crests\" by P. Sarda and D. Graham","docAbstract":"

No abstract available.

","language":"English","publisher":"Elsevier","doi":"10.1016/0012-821X(91)90193-L","issn":"0012821X","usgsCitation":"Gerlach, T., 1991, Comment on \"Mid-ocean ridge popping rocks: implications for degassing at ridge crests\" by P. Sarda and D. Graham: Earth and Planetary Science Letters, v. 105, no. 4, p. 566-567, https://doi.org/10.1016/0012-821X(91)90193-L.","productDescription":"2 p.","startPage":"566","endPage":"567","numberOfPages":"2","costCenters":[],"links":[{"id":225174,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"105","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f7e7e4b0c8380cd4cd81","contributors":{"authors":[{"text":"Gerlach, T.M.","contributorId":38713,"corporation":false,"usgs":true,"family":"Gerlach","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":374087,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016632,"text":"70016632 - 1991 - 14C age of the \"Museum Breccia\" (Campi Flegrei) and its relevance for the origin of the Campanian Ignimbrite","interactions":[],"lastModifiedDate":"2012-03-12T17:18:47","indexId":"70016632","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2499,"text":"Journal of Volcanology and Geothermal Research","active":true,"publicationSubtype":{"id":10}},"title":"14C age of the \"Museum Breccia\" (Campi Flegrei) and its relevance for the origin of the Campanian Ignimbrite","docAbstract":"Field stratigraphic investigations and AMS 14C dating of carbon particles in paleosols has resulted in a framework of the sequence and age of the pyroclastic products in the Campi Flegrei area of Southern Italy. The Museum Breccia cannot be the early phase of the Campanian Ignimbrite, as was previously believed, but is from a smaller and later eruption with an age of approximately 17,900 y B.P. This date also precludes its correlation with the Neapolitan Yellow Tuff (12,000 y B.P.). ?? 1991.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Lirer, L., Rolandi, G., and Rubin, M., 1991, 14C age of the \"Museum Breccia\" (Campi Flegrei) and its relevance for the origin of the Campanian Ignimbrite: Journal of Volcanology and Geothermal Research, v. 48, no. 1-2, p. 223-227.","startPage":"223","endPage":"227","numberOfPages":"5","costCenters":[],"links":[{"id":225173,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e226e4b0c8380cd459cd","contributors":{"authors":[{"text":"Lirer, L.","contributorId":72937,"corporation":false,"usgs":true,"family":"Lirer","given":"L.","email":"","affiliations":[],"preferred":false,"id":374084,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rolandi, G.","contributorId":76472,"corporation":false,"usgs":false,"family":"Rolandi","given":"G.","email":"","affiliations":[],"preferred":false,"id":374085,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rubin, M.","contributorId":88079,"corporation":false,"usgs":true,"family":"Rubin","given":"M.","email":"","affiliations":[],"preferred":false,"id":374086,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016955,"text":"70016955 - 1991 - Integrated exploration for low-temperature geothermal resources in the Honey Lake Basin, California","interactions":[],"lastModifiedDate":"2023-11-16T17:21:34.262933","indexId":"70016955","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1806,"text":"Geophysical Prospecting","active":true,"publicationSubtype":{"id":10}},"title":"Integrated exploration for low-temperature geothermal resources in the Honey Lake Basin, California","docAbstract":"

An integrated exploration study is presented to locate low-temperature geothermal reservoirs in the Honey Lake area of northern California. Regional studies to locate the geothermal resources included gravity, infra-red, water-temperature, and water-quality analyses. Five anomalies were mapped from resistivity surveys. Additional study of three anomalies by temperature-gradient and seismic methods was undertaken to define structure and potential of the geothermal resource. The gravity data show a graben structure in the area. Seismic reflection data indicate faults associated with surface-resistivity and temperature-gradient data. The data support the interpretation that the shallow reservoirs are replenished along the fault zones by deeply circulating heated meteoric waters.

","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-2478.1991.tb00313.x","usgsCitation":"Schimschal, U., 1991, Integrated exploration for low-temperature geothermal resources in the Honey Lake Basin, California: Geophysical Prospecting, v. 39, no. 2, p. 279-291, https://doi.org/10.1111/j.1365-2478.1991.tb00313.x.","productDescription":"13 p.","startPage":"279","endPage":"291","numberOfPages":"13","costCenters":[],"links":[{"id":224472,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Honey Lake Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -120.12227145807901,\n 40.27126914321664\n ],\n [\n -120.12227145807901,\n 40.51461906219083\n ],\n [\n -120.6566182403823,\n 40.51461906219083\n ],\n [\n -120.6566182403823,\n 40.27126914321664\n ],\n [\n -120.12227145807901,\n 40.27126914321664\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"39","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-04-27","publicationStatus":"PW","scienceBaseUri":"505a3c5ee4b0c8380cd62cad","contributors":{"authors":[{"text":"Schimschal, Ulrich","contributorId":92258,"corporation":false,"usgs":true,"family":"Schimschal","given":"Ulrich","email":"","affiliations":[],"preferred":false,"id":374965,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016936,"text":"70016936 - 1991 - Sources of dissolved and particulate organic material in Loch Vale Watershed, Rocky Mountain National Park, Colorado, USA","interactions":[],"lastModifiedDate":"2018-02-21T17:43:43","indexId":"70016936","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1007,"text":"Biogeochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Sources of dissolved and particulate organic material in Loch Vale Watershed, Rocky Mountain National Park, Colorado, USA","docAbstract":"

The sources of both dissolved organic carbon (DOC) and particulate organic carbon (POC) to an alpine (Sky Pond) and a subalpine lake (The Loch) in Rocky Mountain National Park were explored for four years. The importance of both autochthonous and allochthonous sources of organic matter differ, not only between alpine and subalpine locations, but also seasonally. Overall, autochthonous sources dominate the organic carbon of the alpine lake, while allochthonous sources are a more significant source of organic carbon to the subalpine lake. In the alpine lake, Sky Pond, POC makes up greater than one third of the total organic matter content of the water column, and is related to phytoplankton abundance. Dissolved organic carbon is a product of within-lake activity in Sky Pond except during spring snowmelt and early summer (May–July), when stable carbon isotope ratios suggest a terrestrial source. In the subalpine lake, The Loch, DOC is a much more important constituent of water column organic material than POC, comprising greater than 90% of the spring snowmelt organic matter, and greater than 75% of the organic matter over the rest of the year. Stable carbon isotope ratios and a very strong relation of DOC with soluble Al(tot) indicate DOC concentrations are almost entirely related to flushing of soil water from the surrounding watershed during spring snowmelt. Stable carbon isotope ratios indicate that, for both lakes, phytoplankton is an important source of DOC in the winter, while terrestrial material of plant or microbial origin contributes DOC during snowmelt and summer.

","language":"English","publisher":"Springer","doi":"10.1007/BF00003219","usgsCitation":"Baron, J., McKnight, D.M., and Denning, A.S., 1991, Sources of dissolved and particulate organic material in Loch Vale Watershed, Rocky Mountain National Park, Colorado, USA: Biogeochemistry, v. 15, no. 2, p. 89-110, https://doi.org/10.1007/BF00003219.","productDescription":"22 p.","startPage":"89","endPage":"110","costCenters":[],"links":[{"id":224996,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","otherGeospatial":"Rocky Mountain National Park","volume":"15","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9372e4b08c986b31a4d6","contributors":{"authors":[{"text":"Baron, Jill 0000-0002-5902-6251 jill_baron@usgs.gov","orcid":"https://orcid.org/0000-0002-5902-6251","contributorId":194124,"corporation":false,"usgs":true,"family":"Baron","given":"Jill","email":"jill_baron@usgs.gov","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":374913,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKnight, Diane M.","contributorId":59773,"corporation":false,"usgs":false,"family":"McKnight","given":"Diane","email":"","middleInitial":"M.","affiliations":[{"id":16833,"text":"INSTAAR, University of Colorado","active":true,"usgs":false}],"preferred":false,"id":374914,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Denning, A. Scott","contributorId":70710,"corporation":false,"usgs":true,"family":"Denning","given":"A.","email":"","middleInitial":"Scott","affiliations":[],"preferred":false,"id":374915,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70016511,"text":"70016511 - 1991 - Conditions leading to a recent small hydrothermal explosion at Yellowstone National Park","interactions":[],"lastModifiedDate":"2023-12-26T23:03:27.234593","indexId":"70016511","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Conditions leading to a recent small hydrothermal explosion at Yellowstone National Park","docAbstract":"

Porkchop Geyser, in Yellowstone National Park, was the site of a small hydrothermal explosion on September 5, 1989. In the early 1960s, this was a quiescent spring with an intermittent seeping discharge. Infrequent geyser eruptions 3-5 m high started in 1971, and in 1985 the geyser began erupting as a perpetual spouter 6-9 m high. Perpetual spouting at the latter height continued until just before the catastrophic hydrothermal event when the geyser column suddenly rose to a height of 20-30 m, followed immediately by the explosive ejection of sinter blocks up to 1.88 m in maximum dimension and formation of an irregular crater 13.9 m long and 11.7 m wide. The ejected blocks show a variety of siliceous deposits indicative of changing environments of deposition with time, and possibly of prior hydrothermal explosive activity at this site.

Water samples from Porkchop were collected and analyzed once in the 1920s, again in 1951, ten times between 1960 and mid-1989, and once in January 1990 after the explosion. Chemical geothermometry shows an increase in the temperature of last water-rock equilibration of about 60 to 70 °C from 1962 through 1989. This may have been the result of drawing water progressively from different and hotter regions of a single reservoir or mixing waters from two different reservoirs with a progressively larger proportion of water being drawn from the hotter reservoir from 1962 through 1989. Boiling of ascending fluids coming from hotter subsurface regions resulted in an increase in the proportion of steam to water discharged by the geyser. A constriction at the exit of the geyser tube throttled the flow of water and steam and allowed water in shallow cavities adjacent to the geyser tube to become heated to the boiling point at pressures greater than normal hydrostatic. We hypothesize that a sudden breaking loose of this constriction, likely triggered by a seasonal increase in subsurface boiling throughout Norris Basin, allowed water and steam to be discharged from Porkchop much more rapidly than previously. This resulted in a drop in pressure within the geyser tube, causing water in adjacent connected chambers to become superheated. An ensuing rapid flashing of superheated water to steam within relatively confined spaces resulted in the hydrothermal explosion.

","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1991)103<1114:CLTARS>2.3.CO;2","usgsCitation":"Fournier, R., Thompson, J., Cunningham, C.G., and Hutchinson, R., 1991, Conditions leading to a recent small hydrothermal explosion at Yellowstone National Park: Geological Society of America Bulletin, v. 103, no. 8, p. 1114-1120, https://doi.org/10.1130/0016-7606(1991)103<1114:CLTARS>2.3.CO;2.","productDescription":"7 p.","startPage":"1114","endPage":"1120","numberOfPages":"7","costCenters":[],"links":[{"id":223429,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.2564548380432,\n 45.091181880233194\n ],\n [\n -111.2564548380432,\n 43.10320259097256\n ],\n [\n -108.61973608804327,\n 43.10320259097256\n ],\n [\n -108.61973608804327,\n 45.091181880233194\n ],\n [\n -111.2564548380432,\n 45.091181880233194\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"103","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f9b6e4b0c8380cd4d747","contributors":{"authors":[{"text":"Fournier, R.O.","contributorId":73584,"corporation":false,"usgs":true,"family":"Fournier","given":"R.O.","email":"","affiliations":[],"preferred":false,"id":373761,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thompson, J. M.","contributorId":77142,"corporation":false,"usgs":true,"family":"Thompson","given":"J. M.","affiliations":[],"preferred":false,"id":373763,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cunningham, C. G.","contributorId":76741,"corporation":false,"usgs":true,"family":"Cunningham","given":"C.","middleInitial":"G.","affiliations":[],"preferred":false,"id":373762,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hutchinson, R. A.","contributorId":62218,"corporation":false,"usgs":true,"family":"Hutchinson","given":"R. A.","affiliations":[],"preferred":false,"id":373760,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70016487,"text":"70016487 - 1991 - Wading measurements of vertical velocity profiles","interactions":[],"lastModifiedDate":"2024-02-05T12:42:53.013058","indexId":"70016487","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1801,"text":"Geomorphology","active":true,"publicationSubtype":{"id":10}},"title":"Wading measurements of vertical velocity profiles","docAbstract":"

Increasingly, there is a recognized need to enhance research of hydraulic, geomorphic and sediment-transport processes in rivers. This research often includes studies of the velocity distribution in rivers. This paper describes the use of the topsetting wading rod and a table and an analytical expression to more easily obtain vertical velocity profiles in rivers.

","language":"English","publisher":"Elsevier","doi":"10.1016/0169-555X(91)90007-W","issn":"0169555X","usgsCitation":"Jarrett, R., 1991, Wading measurements of vertical velocity profiles: Geomorphology, v. 4, no. 3-4, p. 243-247, https://doi.org/10.1016/0169-555X(91)90007-W.","productDescription":"5 p.","startPage":"243","endPage":"247","numberOfPages":"5","costCenters":[],"links":[{"id":223325,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"4","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc3b9e4b08c986b32b351","contributors":{"authors":[{"text":"Jarrett, R.D.","contributorId":36551,"corporation":false,"usgs":true,"family":"Jarrett","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":373703,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70016510,"text":"70016510 - 1991 - Selectivity and effectiveness of extractants used to release metals associated with organic matter","interactions":[],"lastModifiedDate":"2019-03-28T06:36:46","indexId":"70016510","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Selectivity and effectiveness of extractants used to release metals associated with organic matter","docAbstract":"

Partial extraction procedures can be used to release metals associated with organic matter in natural materials. Reagents commonly employed for this purpose include hydrogen peroxide, Na hypochlorite and Na pyrophosphate. This study tested the selectivity of these reagents by comparing the amount of Fe, Mn, Zn and Cu they released from sulfide and oxide minerals and determined the ability of these reagents to release the same metals from peat. Sodium hypochlorite and Na pyrophosphate released between 0.2 and 8.7% of the total metal content of the Fe, Cu and Zn minerals. In contrast, three commonly used hydrogen peroxide reagents released significantly more metals from the oxides and sulfides. Percentages of Zn and Mn released from the peat samples were comparable for all extractions tested. Per cent Cu released from peat by Na pyrophosphate was very low compared to that released by hydrogen peroxide/HNO3 or na hypochlorite. A smaller fraction of Fe was released from peat by Na hypochlorite than by the other reagents. Iron release by Na hypochlorite correlates with the organic carbon content of the peat samples. A universal extractant for metals associated with organic matter in all types of samples has not been identified. Sodium hypochlorite and Na pyrophosphate are better than hydrogen peroxide in selectively releasing metals bound to organic matter because they do not release significant amounts of metals from oxide and sulfide minerals.

","language":"English","publisher":"Elsevier","doi":"10.1016/0883-2927(91)90010-M","issn":"08832927","usgsCitation":"Papp, C.S., Filipek, L., and Smith, K., 1991, Selectivity and effectiveness of extractants used to release metals associated with organic matter: Applied Geochemistry, v. 6, no. 3, p. 349-353, https://doi.org/10.1016/0883-2927(91)90010-M.","productDescription":"5 p.","startPage":"349","endPage":"353","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":223428,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8ce2e4b08c986b31819a","contributors":{"authors":[{"text":"Papp, C. S.E.","contributorId":69304,"corporation":false,"usgs":true,"family":"Papp","given":"C.","middleInitial":"S.E.","affiliations":[],"preferred":false,"id":373759,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Filipek, L.H.","contributorId":58392,"corporation":false,"usgs":true,"family":"Filipek","given":"L.H.","email":"","affiliations":[],"preferred":false,"id":373758,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, K. S. 0000-0001-8547-9804","orcid":"https://orcid.org/0000-0001-8547-9804","contributorId":47779,"corporation":false,"usgs":true,"family":"Smith","given":"K. S.","affiliations":[],"preferred":false,"id":373757,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1004067,"text":"1004067 - 1991 - Lead poisoning of a marbled godwit","interactions":[],"lastModifiedDate":"2022-03-07T15:27:57.684341","indexId":"1004067","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3580,"text":"The Prairie Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Lead poisoning of a marbled godwit","docAbstract":"

A thin adult female marbled godwit (Limosa fedoa) found dead at Benton Lake National Wildlife Refuge, Montana, was found to have 17 ingested lead shot in its gizzard. Its liver contained 51.7 ppm lead (wet weight). Based on these necropsy findings a diagnosis of lead poisoning was made.

","language":"English","publisher":"Eagle Hill Publications","usgsCitation":"Locke, L.N., Smith, M.R., Windingstad, R.M., and Martin, S.J., 1991, Lead poisoning of a marbled godwit: The Prairie Naturalist, v. 23, no. 1, p. 21-24.","productDescription":"4 p.","startPage":"21","endPage":"24","numberOfPages":"4","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":135196,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Montana","otherGeospatial":"Benton Lake National Wildlife Refuge","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.38282775878906,\n 47.705372030204025\n ],\n [\n -111.33750915527344,\n 47.70490995475603\n ],\n [\n -111.31622314453125,\n 47.697516190510555\n ],\n [\n -111.3028335571289,\n 47.689890272830304\n ],\n [\n -111.28772735595703,\n 47.677177931734406\n ],\n [\n -111.27159118652344,\n 47.66423127417956\n ],\n [\n -111.25957489013672,\n 47.649893728326944\n ],\n [\n -111.25957489013672,\n 47.63971630732309\n ],\n [\n -111.25991821289062,\n 47.63069375368569\n ],\n [\n -111.25991821289062,\n 47.618661258713864\n ],\n [\n -111.26094818115234,\n 47.611718174784954\n ],\n [\n -111.28051757812499,\n 47.61588413576999\n ],\n [\n -111.30558013916016,\n 47.62190104905555\n ],\n [\n -111.31931304931639,\n 47.62537203020587\n ],\n [\n -111.3296127319336,\n 47.631387851583746\n ],\n [\n -111.34883880615234,\n 47.6441113460123\n ],\n [\n -111.36669158935545,\n 47.653825382654695\n ],\n [\n -111.3907241821289,\n 47.658219234272856\n ],\n [\n -111.41166687011719,\n 47.65151268066222\n ],\n [\n -111.42196655273438,\n 47.65636923655091\n ],\n [\n -111.40514373779295,\n 47.698902601182304\n ],\n [\n -111.38694763183594,\n 47.706527200903395\n ],\n [\n -111.38282775878906,\n 47.705372030204025\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"23","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a888a","contributors":{"authors":[{"text":"Locke, L. 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Following a pilot study in 19854, the present work involved the shooting of three seismic refraction and wide-angle reflection profiles along the axis, across the margins, and on the northeastern flank of the rift (Fig. 1). These lines were intended to reconcile the different crustal thickness estimates for the northern and southern parts of the rift4-6 and to reveal the structure across the rift, including that beneath the flanks. The data, presented here, reveal significant lateral variations in structure both along and across the rift. The crust thins along the rift axis from 35 km in the south to 20 km in the north; there are abrupt changes in Mono depth and uppermost-mantle seismic velocity across the rift margins, and crustal thickening across the boundary between the Archaean craton and PanAfrican orogenic belt immediately west of the rift. These results suggest that thickened crust may have controlled the rift's location, that there is a decrease in extension from north to south, and that the upper mantle immediately beneath the rift may contain reservoirs of magma generated at greater depth.","largerWorkTitle":"","language":"English","publisher":"Nature","doi":"10.1038/354223a0","issn":"00280836","usgsCitation":"Prodehl, C., Mechie, J., Kaminski, W., Fuchs, K., Grosse, C., Hoffmann, H., Stangl, R., Stellrecht, R., Khan, M., Maguire, P.K., Kirk, W., Keller, G.R., Githui, A., Baker, M., Mooney, W.D., Criley, E., Luetgert, J., Jacob, B., Thybo, H., Demartin, M., Scarascia, S., Hirn, A., Bowman, J.R., Nyambok, I., Gaciri, S., Patel, J., Dindi, E., Griffiths, D., King, R., Mussett, A.E., Braile, L., Thompson, G., Olsen, K., Harder, S., Vees, R., Gajewski, D., Schulte, A., Obel, J., Mwango, F., Mukinya, J., and Riaroh, D., 1991, Large-scale variation in lithospheric structure along and across the Kenya rift: Nature, v. 354, 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No abstract available 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Marine ranching: Proceedings of the seventeenth U.S.-Japan meeting on aquaculture","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Seventeenth U.S.-Japan meeting on aquaculture","conferenceDate":"October 16-18, 1998","conferenceLocation":"Ise, Mie Prefecture, Japan","language":"English","usgsCitation":"Stickney, R., Liu, H.W., and Smith, S., 1991, Recent advances in halibut (Hippoglossus spp.) culture, in Marine ranching: Proceedings of the seventeenth U.S.-Japan meeting on aquaculture, Ise, Mie Prefecture, Japan, October 16-18, 1998.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334598,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58945334e4b0fa1e59b867f7","contributors":{"editors":[{"text":"Svrjcek, Ralph S.","contributorId":179034,"corporation":false,"usgs":false,"family":"Svrjcek","given":"Ralph","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":662300,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Stickney, R.R.","contributorId":112786,"corporation":false,"usgs":true,"family":"Stickney","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":662297,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Liu, H. W.","contributorId":152164,"corporation":false,"usgs":false,"family":"Liu","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":662298,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Smith, S.D.","contributorId":49749,"corporation":false,"usgs":true,"family":"Smith","given":"S.D.","email":"","affiliations":[],"preferred":false,"id":662299,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70180730,"text":"70180730 - 1991 - Sequence homologies between the N genes of the 07-71 and makah isolates of viral hemorrhagic septicemia virus","interactions":[],"lastModifiedDate":"2017-02-01T12:59:06","indexId":"70180730","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Sequence homologies between the N genes of the 07-71 and makah isolates of viral hemorrhagic septicemia virus","docAbstract":"

No abstract available 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the second international symposium on viruses of lower vertebrates","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Second international symposium on viruses of lower vertebrates","conferenceDate":"July 29-31, 1991","conferenceLocation":"Corvallis, OR","language":"English","usgsCitation":"Bernard, J., Bremont, M., and Winton, J., 1991, Sequence homologies between the N genes of the 07-71 and makah isolates of viral hemorrhagic septicemia virus, in Proceedings of the second international symposium on viruses of lower vertebrates, Corvallis, OR, July 29-31, 1991.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334543,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a03785e4b099f50d3e0514","contributors":{"authors":[{"text":"Bernard, J.","contributorId":178941,"corporation":false,"usgs":false,"family":"Bernard","given":"J.","email":"","affiliations":[],"preferred":false,"id":662178,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bremont, M.","contributorId":30349,"corporation":false,"usgs":false,"family":"Bremont","given":"M.","affiliations":[],"preferred":false,"id":662179,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Winton, J. R. 0000-0002-3505-5509","orcid":"https://orcid.org/0000-0002-3505-5509","contributorId":82441,"corporation":false,"usgs":true,"family":"Winton","given":"J. R.","affiliations":[],"preferred":false,"id":662180,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70180755,"text":"70180755 - 1991 - In characteristics of the first North American isolates of viral hemorrhagic septicemia virus","interactions":[],"lastModifiedDate":"2017-02-02T11:59:45","indexId":"70180755","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"In characteristics of the first North American isolates of viral hemorrhagic septicemia virus","docAbstract":"

No abstract available 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the second international symposium on viruses of lower vertebrates","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Second international symposium on viruses of lower vertebrates","conferenceDate":"July 27-31, 1991","conferenceLocation":"Corvallis, OR","language":"English","usgsCitation":"Winton, J., Batts, W., Brunson, R., Hopper, K., Nishizawa, T., and Stehr, C., 1991, In characteristics of the first North American isolates of viral hemorrhagic septicemia virus, in Proceedings of the second international symposium on viruses of lower vertebrates, Corvallis, OR, July 27-31, 1991, p. 43-50.","productDescription":"8 p. ","startPage":"43","endPage":"50","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334603,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58945333e4b0fa1e59b867ef","contributors":{"authors":[{"text":"Winton, J. R. 0000-0002-3505-5509","orcid":"https://orcid.org/0000-0002-3505-5509","contributorId":82441,"corporation":false,"usgs":true,"family":"Winton","given":"J. R.","affiliations":[],"preferred":false,"id":662308,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Batts, W.N. 0000-0002-6469-9004","orcid":"https://orcid.org/0000-0002-6469-9004","contributorId":51043,"corporation":false,"usgs":true,"family":"Batts","given":"W.N.","affiliations":[],"preferred":false,"id":662309,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brunson, R.","contributorId":179037,"corporation":false,"usgs":false,"family":"Brunson","given":"R.","email":"","affiliations":[],"preferred":false,"id":662310,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hopper, K.","contributorId":179038,"corporation":false,"usgs":false,"family":"Hopper","given":"K.","email":"","affiliations":[],"preferred":false,"id":662311,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Nishizawa, T.","contributorId":53536,"corporation":false,"usgs":true,"family":"Nishizawa","given":"T.","affiliations":[],"preferred":false,"id":662312,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Stehr, C.","contributorId":179036,"corporation":false,"usgs":false,"family":"Stehr","given":"C.","affiliations":[],"preferred":false,"id":662313,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70197191,"text":"70197191 - 1991 - Application of the FINDER system to the search for epithermal vein gold-silver deposits : Kushikino, Japan, a case study","interactions":[],"lastModifiedDate":"2018-05-21T15:43:32","indexId":"70197191","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5698,"text":"Geoinformatics","active":true,"publicationSubtype":{"id":10}},"title":"Application of the FINDER system to the search for epithermal vein gold-silver deposits : Kushikino, Japan, a case study","docAbstract":"

The FINDER system employs geometric probability, Bayesian statistics, and the normal probability density function to integrate spatial and frequency information to produce a map of probabilities of target centers. Target centers can be mineral deposits, alteration associated with mineral deposits, or any other target that can be represented by a regular shape on a two dimensional map. The size, shape, mean, and standard deviation for each variable are characterized in a control area and the results applied by means of FINDER to the study area. The Kushikino deposit consists of groups of quartz-calcite-adularia veins that produced 55 tonnes of gold and 456 tonnes of silver since 1660. Part of a 6 by 10 km area near Kushikino served as a control area. Within the control area, data plotting, contouring, and cluster analysis were used to identify the barren and mineralized populations. Sodium was found to be depleted in an elliptically shaped area 3.1 by 1.6 km, potassium was both depleted and enriched locally in an elliptically shaped area 3.0 by 1.3 km, and sulfur was enriched in an elliptically shaped area 5.8 by 1.6 km. The potassium, sodium, and sulfur content from 233 surface rock samples were each used in FINDER to produce probability maps for the 12 by 30 km study area which includes Kushikino. High probability areas for each of the individual variables are over and offset up to 4 km eastward from the main Kushikino veins. In general, high probability areas identified by FINDER are displaced from the main veins and cover not only the host andesite and the dacite-andesite that is about the same age as the Kushikino mineralization, but also younger sedimentary rocks, andesite, and tuff units east and northeast of Kushikino. The maps also display the same patterns observed near Kushikino, but with somewhat lower probabilities, about 1.5 km east of the old gold prospect, Hajima, and in a broad zone 2.5 km east-west and 1 km north-south, centered 2 km west of the old gold prospect, Yaeyama.

","publisher":"J-STAGE","doi":"10.6010/geoinformatics1990.2.2_113","usgsCitation":"Singer, D.A., and Kouda, R., 1991, Application of the FINDER system to the search for epithermal vein gold-silver deposits : Kushikino, Japan, a case study: Geoinformatics, v. 2, no. 2, p. 113-123, https://doi.org/10.6010/geoinformatics1990.2.2_113.","productDescription":"11 p.","startPage":"113","endPage":"123","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":480416,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.6010/geoinformatics1990.2.2_113","text":"Publisher Index Page"},{"id":354367,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b15a7efe4b092d9651e22f7","contributors":{"authors":[{"text":"Singer, Donald A. dsinger@usgs.gov","contributorId":5601,"corporation":false,"usgs":true,"family":"Singer","given":"Donald","email":"dsinger@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":735956,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kouda, Ryoichi","contributorId":198036,"corporation":false,"usgs":false,"family":"Kouda","given":"Ryoichi","email":"","affiliations":[],"preferred":false,"id":735957,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70180737,"text":"70180737 - 1991 - The application of current techniques in molecular biology for detection and control of infectious diseases in salmonid aquaculture","interactions":[],"lastModifiedDate":"2017-02-01T14:07:17","indexId":"70180737","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The application of current techniques in molecular biology for detection and control of infectious diseases in salmonid aquaculture","docAbstract":"

No abstract available 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the U.S.-Japan Natural Resources Council, 1988, Mie, Japan","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"U.S.-Japan Natural Resources Council","conferenceDate":"1988","conferenceLocation":"Mie, Japan","language":"English","publisher":"National Oceanic and Atmospheric Administration ","publisherLocation":"Mie, Japan","usgsCitation":"Fox, A., Arakawa, C., and Winton, J., 1991, The application of current techniques in molecular biology for detection and control of infectious diseases in salmonid aquaculture, in Proceedings of the U.S.-Japan Natural Resources Council, 1988, Mie, Japan, Mie, Japan, 1988, p. 165-169.","productDescription":"5 p. ","startPage":"165","endPage":"169","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334556,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58a03783e4b099f50d3e050c","contributors":{"authors":[{"text":"Fox, Adam G.","contributorId":179021,"corporation":false,"usgs":false,"family":"Fox","given":"Adam","middleInitial":"G.","affiliations":[],"preferred":false,"id":662196,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Arakawa, C.K.","contributorId":152140,"corporation":false,"usgs":false,"family":"Arakawa","given":"C.K.","email":"","affiliations":[],"preferred":false,"id":662197,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Winton, J. R. 0000-0002-3505-5509","orcid":"https://orcid.org/0000-0002-3505-5509","contributorId":82441,"corporation":false,"usgs":true,"family":"Winton","given":"J. R.","affiliations":[],"preferred":false,"id":662198,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70182708,"text":"70182708 - 1991 - Seasonal abundance and vertical distribution of capelin (Mallotus villosus) in relation to water temperature at a coastal site off eastern Newfoundland","interactions":[],"lastModifiedDate":"2017-02-27T14:05:26","indexId":"70182708","displayToPublicDate":"1991-01-01T00:00:00","publicationYear":"1991","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1936,"text":"ICES Journal of Marine Science","active":true,"publicationSubtype":{"id":10}},"title":"Seasonal abundance and vertical distribution of capelin (Mallotus villosus) in relation to water temperature at a coastal site off eastern Newfoundland","docAbstract":"

The seasonal abundance and vertical distribution of capelin in relation to water temperature have been investigated by conducting repeated hydroacoustic surveys at a coastal site off eastern Newfoundland. Water temperatures were warmer in 1983 than in 1984 as indicated by the earlier appearance and greater depth of the seasonal thermocline. Correspondingly, schools of capelin appeared earlier, were more abundant, and extended deeper in the water column in 1983 than in 1984. Most capelin were found between the surface and the 5°C isotherm. In both years, initial peaks of capelin abundance occurred when nearshore water temperatures increased from about 0-1°C to above 6°C and, at or near, periods of maximum tidal oscillation. Short-term variations in the depth of the 5°C isotherm were related to nearshore wind-induced upwelling events. Annual variations corresponded to the volume of cold (>0°C) water and sea-ice transported south by the Labrador Current.

","language":"English","publisher":"Oxford Academic","doi":"10.1093/icesjms/48.2.187","usgsCitation":"Methven, D.A., and Piatt, J.F., 1991, Seasonal abundance and vertical distribution of capelin (Mallotus villosus) in relation to water temperature at a coastal site off eastern Newfoundland: ICES Journal of Marine Science, v. 48, no. 2, p. 187-193, https://doi.org/10.1093/icesjms/48.2.187.","productDescription":"7 p.","startPage":"187","endPage":"193","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":480443,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1093/icesjms/48.2.187","text":"Publisher Index Page"},{"id":336239,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada","state":"Newfoundland","volume":"48","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58b2a5a3e4b01ccd54fca169","contributors":{"authors":[{"text":"Methven, David A.","contributorId":179915,"corporation":false,"usgs":false,"family":"Methven","given":"David","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":673383,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":673384,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}