{"pageNumber":"4255","pageRowStart":"106350","pageSize":"25","recordCount":184904,"records":[{"id":70017207,"text":"70017207 - 1992 - Compositional gradients in large reservoirs of silicic magma as evidenced by ignimbrites versus Taylor Creek Rhyolite lava domes","interactions":[],"lastModifiedDate":"2012-03-12T17:18:47","indexId":"70017207","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"Compositional gradients in large reservoirs of silicic magma as evidenced by ignimbrites versus Taylor Creek Rhyolite lava domes","docAbstract":"The Taylor Creek Rhyolite of southwest New Mexico consists of 20 lava domes and flows that were emplaced during a period of a few thousand years or less in late Oligocene time. Including genetically associated pyroclastic deposits, which are about as voluminous as the lava domes and flows, the Taylor Creek Rhyolite represents roughly 100 km3 of magma erupted from vents distributed throughout an area of several hundred square kilometers. Major-element composition is metaluminous to weakly peraluminous high-silica rhyolite and is nearly constant throughout the lava field. The magma reservoir for the Taylor Creek Rhyolite was vertically zoned in trace elements, 87Sr/86Sr, and phenocryst abundance and size. Mean trace-element concentrations, ranges in concentrations, and element-pair correlations are similar to many subalkaline silicic ignimbrites. However, the polarity of the zonation was opposite that in reservoirs for ignimbrites, for most constituents. For example, compared to the Bishop Tuff, only 87Sr/86Sr and Sc increased upward in both reservoirs. Quite likely, a dominant but nonerupted volume of the magma reservoir for the Taylor Creek Rhyolite was zoned like that for the Bishop Tuff, whereas an erupted, few-hundred-meter-thick cap on the magma body was variably contaminated by roof rocks whose contribution to this part of the magma system moderated relatively extreme trace-element concentrations of uncontaminated Taylor Creek Rhyolite but did not change the sense of correlation for most element pairs. The contaminant probably was a Precambrian rock of broadly granitic composition and with very high 87Sr/86Sr. Although examples apparently are not yet reported in the literature, evidence for a similar thin contaminated cap on reservoirs for large-volume silicic ignimbrites may exist in the bottom few meters of ignimbrites or perhaps only in the pumice fallout that normally immediately precedes ignimbrite emplacement. 87Sr/86Sr in sanidine phenocrysts of the Taylor Creek Rhyolite is higher than that of their host whole rocks. Covariation of this isotope ratio with sanidine abundance and size indicates positive correlations for all three features with decreasing distance to the roof of the magma reservoir. The sanidine probably is more radiogenic than host whole rock because growing phenocrysts partly incorporated Sr from the first partial melt of roof rocks, which contained the highly radiogenic Sr of Precambrian biotite ?? hornblende, whereas diffusion was too slow for sanidine to incorporate much of the Sr from subsequently produced less radiogenic partial melt of roof rocks, before eruption quenched the magma system. Disequilibrium between feldspar phenocrysts and host groundmass is fairly common for ignimbrites, and a process of contamination similar to that for the Taylor Creek Rhyolite may help explain some of these situations. ?? 1992 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/BF00310738","issn":"00107999","usgsCitation":"Duffield, W.A., and Ruiz, J., 1992, Compositional gradients in large reservoirs of silicic magma as evidenced by ignimbrites versus Taylor Creek Rhyolite lava domes: Contributions to Mineralogy and Petrology, v. 110, no. 2-3, p. 192-210, https://doi.org/10.1007/BF00310738.","startPage":"192","endPage":"210","numberOfPages":"19","costCenters":[],"links":[{"id":205572,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00310738"},{"id":224922,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"110","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f938e4b0c8380cd4d4de","contributors":{"authors":[{"text":"Duffield, W. A.","contributorId":71935,"corporation":false,"usgs":true,"family":"Duffield","given":"W.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":375727,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ruiz, J.","contributorId":88886,"corporation":false,"usgs":true,"family":"Ruiz","given":"J.","email":"","affiliations":[],"preferred":false,"id":375728,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70017012,"text":"70017012 - 1992 - Historic variation of warm-season rainfall, Southern Colorado Plateau, Southwestern U.S.A.","interactions":[],"lastModifiedDate":"2012-03-12T17:18:53","indexId":"70017012","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1252,"text":"Climatic Change","active":true,"publicationSubtype":{"id":10}},"title":"Historic variation of warm-season rainfall, Southern Colorado Plateau, Southwestern U.S.A.","docAbstract":"Rainfall during the warm season (June 15-October 15) is the most important of the year in terms of flood generation and erosion in rivers of the southern Colorado Plateau. Fluvial erosion of the plateau decreased substantially in the 1930s to early 1940s, although the cause of this change has not been linked to variation of warm-season rainfall. This study shows that a decrease of warmseason rainfall frequency was coincident with and probably caused the decreased erosion by reducing the probability of large floods. Warm-season rainfall results from isolated thunderstorms associated with the Southwestern monsoon and from dissipating tropical cyclones and (or) cutoff low-pressure systems that produce widespread, general rainfall. Warm-season rainfall is typically normal to above normal during warm El Nin??o-Southern Oscillation (ENSO) conditions. A network of 24 long-term precipitation gages was used to develop an index of standardized rainfall anomalies for the southern Colorado Plateau for the period 1900-85. The index shows that the occurrence of anomalously dry years increased and the occurrence of anomalously wet years decreased after the early 1930s, although 1939-41, 1972, and 1980-84 were anomalously wet. The decrease in warm-season rainfall after the early 1930s is related to a decrease in rainfall from dissipating tropical cyclones, shifts in the incidence of meridional circulation in the upper atmosphere, and variability of ENSO conditions. ?? 1992 Kluwer Academic Publishers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Climatic Change","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF00143030","issn":"01650009","usgsCitation":"Hereford, R., and Webb, R.H., 1992, Historic variation of warm-season rainfall, Southern Colorado Plateau, Southwestern U.S.A.: Climatic Change, v. 22, no. 3, p. 239-256, https://doi.org/10.1007/BF00143030.","startPage":"239","endPage":"256","numberOfPages":"18","costCenters":[],"links":[{"id":205525,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00143030"},{"id":224674,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a316be4b0c8380cd5deeb","contributors":{"authors":[{"text":"Hereford, R.","contributorId":84437,"corporation":false,"usgs":true,"family":"Hereford","given":"R.","email":"","affiliations":[],"preferred":false,"id":375141,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Webb, R. H.","contributorId":13648,"corporation":false,"usgs":true,"family":"Webb","given":"R.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":375140,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70017209,"text":"70017209 - 1992 - Geochemistry of waters in the Valley of Ten Thousand Smokes region, Alaska","interactions":[],"lastModifiedDate":"2012-03-12T17:18:47","indexId":"70017209","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","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":"Geochemistry of waters in the Valley of Ten Thousand Smokes region, Alaska","docAbstract":"Meteoric waters from cold springs and streams outside of the 1912 eruptive deposits filling the Valley of Ten Thousand Smokes (VTTS) and in the upper parts of the two major rivers draining the 1912 deposits have similar chemical trends. Thermal springs issue in the mid-valley area along a 300-m lateral section of ash-flow tuff, and range in temperature from 21 to 29.8??C in early summer and from 15 to 17??C in mid-summer. Concentrations of major and minor chemical constituents in the thermal waters are nearly identical regardless of temperature. Waters in the downvalley parts of the rivers draining the 1912 deposits are mainly mixtures of cold meteoric waters and thermal waters of which the mid-valley thermal spring waters are representative. The weathering reactions of cold waters with the 1912 deposits appear to have stabilized and add only subordinate amounts of chemical constituents to the rivers relative to those contributed by the thermal waters. Isotopic data indicate that the mid-valley thermal spring waters are meteoric, but data is inconclusive regarding the heat source. The thermal waters could be either from a shallow part of a hydrothermal system beneath the 1912 vent region or from an incompletely cooled, welded tuff lens deep in the 1912 ash-flow sheet of the upper River Lethe area. Bicarbonate-sulfate waters resulting from interaction of near-surface waters and the cooling 1953-1968 southwest Trident plug issue from thermal springs south of Katmai Pass and near Mageik Creek, although the Mageik Creek spring waters are from a well-established, more deeply circulating hydrothermal system. Katmai caldera lake waters are a result of acid gases from vigorous drowned fumaroles dissolving in lake waters composed of snowmelt and precipitation. ?? 1992.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Volcanology and Geothermal Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"03770273","usgsCitation":"Keith, T.E., Thompson, J., Hutchinson, R., and White, L.D., 1992, Geochemistry of waters in the Valley of Ten Thousand Smokes region, Alaska: Journal of Volcanology and Geothermal Research, v. 49, no. 3-4, p. 209-231.","startPage":"209","endPage":"231","numberOfPages":"23","costCenters":[],"links":[{"id":224967,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1729e4b0c8380cd553e3","contributors":{"authors":[{"text":"Keith, T. E. C.","contributorId":11681,"corporation":false,"usgs":true,"family":"Keith","given":"T.","email":"","middleInitial":"E. C.","affiliations":[],"preferred":false,"id":375733,"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":375736,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hutchinson, R. A.","contributorId":62218,"corporation":false,"usgs":true,"family":"Hutchinson","given":"R. A.","affiliations":[],"preferred":false,"id":375735,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"White, L. D.","contributorId":14330,"corporation":false,"usgs":true,"family":"White","given":"L.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":375734,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70017231,"text":"70017231 - 1992 - Effect of sea-level variation on upper-slope depositional processes offshore of Tiber delta, Tyrrhenian Sea, Italy","interactions":[],"lastModifiedDate":"2024-09-20T11:09:51.702106","indexId":"70017231","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Effect of sea-level variation on upper-slope depositional processes offshore of Tiber delta, Tyrrhenian Sea, Italy","docAbstract":"

The upper slope and outer shelf in front of the Tiber River mouth (east-central Tyrrhenian Sea) exhibits a series of about 15 gullies that are not clearly related to present-day erosional or depositional processes. An extensive, high-resolution, seismic-reflection profiling survey of a 450 km2 area in front of the Tiber delta shows several generations of similar features within the older depositional sequences underlying the outer continental shelf. The gully relief appears dominantly depositional, probably developed during lowstand periods when the Tiber River mouth was relatively near the shelf break. The position of the gullied intervals, including those on the modern slope relict from the last lowstand, shows a successive northward shift with time. This northward shift indicates continued tilting of this part of the eastern Tyrrhenian continental margin, probably resulting from a continued subsidence to the north.


","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(92)90087-X","issn":"00253227","usgsCitation":"Chiocci, F., and Normark, W.R., 1992, Effect of sea-level variation on upper-slope depositional processes offshore of Tiber delta, Tyrrhenian Sea, Italy: Marine Geology, v. 104, no. 1-4, p. 109-122, https://doi.org/10.1016/0025-3227(92)90087-X.","productDescription":"14 p.","startPage":"109","endPage":"122","numberOfPages":"14","costCenters":[],"links":[{"id":224686,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"104","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0604e4b0c8380cd510a3","contributors":{"authors":[{"text":"Chiocci, F.L.","contributorId":74522,"corporation":false,"usgs":true,"family":"Chiocci","given":"F.L.","email":"","affiliations":[],"preferred":false,"id":375827,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Normark, W. R.","contributorId":87137,"corporation":false,"usgs":true,"family":"Normark","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":375828,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70017011,"text":"70017011 - 1992 - Probabilistic methodology for estimation of undiscovered petroleum resources in play analysis of the United States","interactions":[],"lastModifiedDate":"2012-03-12T17:18:53","indexId":"70017011","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2879,"text":"Nonrenewable Resources","active":true,"publicationSubtype":{"id":10}},"title":"Probabilistic methodology for estimation of undiscovered petroleum resources in play analysis of the United States","docAbstract":"A geostochastic system called FASPF was developed by the U.S. Geological Survey for their 1989 assessment of undiscovered petroleum resources in the United States. FASPF is a fast appraisal system for petroleum play analysis using a field-size geological model and an analytic probabilistic methodology. The geological model is a particular type of probability model whereby the volumes of oil and gas accumulations are modeled as statistical distributions in the form of probability histograms, and the risk structure is bilevel (play and accumulation) in terms of conditional probability. The probabilistic methodology is an analytic method derived from probability theory rather than Monte Carlo simulation. The resource estimates of crude oil and natural gas are calculated and expressed in terms of probability distributions. The probabilistic methodology developed by the author is explained. The analytic system resulted in a probabilistic methodology for play analysis, subplay analysis, economic analysis, and aggregation analysis. Subplay analysis included the estimation of petroleum resources on non-Federal offshore areas. Economic analysis involved the truncation of the field size with a minimum economic cutoff value. Aggregation analysis was needed to aggregate individual play and subplay estimates of oil and gas, respectively, at the provincial, regional, and national levels. ?? 1992 Oxford University Press.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nonrenewable Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF01782269","issn":"09611444","usgsCitation":"Crovelli, R., 1992, Probabilistic methodology for estimation of undiscovered petroleum resources in play analysis of the United States: Nonrenewable Resources, v. 1, no. 2, p. 153-162, https://doi.org/10.1007/BF01782269.","startPage":"153","endPage":"162","numberOfPages":"10","costCenters":[],"links":[{"id":205524,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01782269"},{"id":224673,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8c95e4b0c8380cd7e785","contributors":{"authors":[{"text":"Crovelli, R. A.","contributorId":40969,"corporation":false,"usgs":true,"family":"Crovelli","given":"R. A.","affiliations":[],"preferred":false,"id":375139,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70017010,"text":"70017010 - 1992 - Statistical sampling of the distribution of uranium deposits using geologic/geographic clusters","interactions":[],"lastModifiedDate":"2012-03-12T17:18:53","indexId":"70017010","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2879,"text":"Nonrenewable Resources","active":true,"publicationSubtype":{"id":10}},"title":"Statistical sampling of the distribution of uranium deposits using geologic/geographic clusters","docAbstract":"The concept of geologic/geographic clusters was developed particularly to study grade and tonnage models for sandstone-type uranium deposits. A cluster is a grouping of mined as well as unmined uranium occurrences within an arbitrary area about 8 km across. A cluster is a statistical sample that will reflect accurately the distribution of uranium in large regions relative to various geologic and geographic features. The example of the Colorado Plateau Uranium Province reveals that only 3 percent of the total number of clusters is in the largest tonnage-size category, greater than 10,000 short tons U3O8, and that 80 percent of the clusters are hosted by Triassic and Jurassic rocks. The distributions of grade and tonnage for clusters in the Powder River Basin show a wide variation; the grade distribution is highly variable, reflecting a difference between roll-front deposits and concretionary deposits, and the Basin contains about half the number in the greater-than-10,000 tonnage-size class as does the Colorado Plateau, even though it is much smaller. The grade and tonnage models should prove useful in finding the richest and largest uranium deposits. ?? 1992 Oxford University Press.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nonrenewable Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF01782268","issn":"09611444","usgsCitation":"Finch, W., Grundy, W., and Pierson, C.T., 1992, Statistical sampling of the distribution of uranium deposits using geologic/geographic clusters: Nonrenewable Resources, v. 1, no. 2, p. 148-152, https://doi.org/10.1007/BF01782268.","startPage":"148","endPage":"152","numberOfPages":"5","costCenters":[],"links":[{"id":205523,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01782268"},{"id":224672,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9741e4b08c986b31b99b","contributors":{"authors":[{"text":"Finch, W.I.","contributorId":75919,"corporation":false,"usgs":true,"family":"Finch","given":"W.I.","email":"","affiliations":[],"preferred":false,"id":375138,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grundy, W.D.","contributorId":73227,"corporation":false,"usgs":true,"family":"Grundy","given":"W.D.","email":"","affiliations":[],"preferred":false,"id":375137,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pierson, C. T.","contributorId":57055,"corporation":false,"usgs":true,"family":"Pierson","given":"C.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":375136,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1008642,"text":"1008642 - 1992 - Power of sign surveys to monitor population trend","interactions":[],"lastModifiedDate":"2016-10-13T09:47:00","indexId":"1008642","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Power of sign surveys to monitor population trend","docAbstract":"

The urgent need for an effective monitoring scheme for grizzly bear (Ursus arctos) populations led us to investigate the effort required to detect changes in populations of low—density dispersed animals, using sign (mainly scats and tracks) they leave on trails. We surveyed trails in Glacier National Park for bear tracks and scats during five consecutive years. Using these data, we modeled the occurrence of bear sign on trails, then estimated the power of various sampling schemes. Specifically, we explored the power of bear sign surveys to detect a 20% decline in sign occurrence. Realistic sampling schemes appear feasible if the density of sign is high enough, and we provide guidelines for designs with adequate replication to monitor long—term trends of dispersed populations using sign occurrences on trails.

","language":"English","publisher":"Ecological Society of America","doi":"10.2307/1941877","usgsCitation":"Kendall, K.C., Metzgar, L.H., Patterson, D.A., and Steele, B.M., 1992, Power of sign surveys to monitor population trend: Ecological Applications, v. 2, no. 4, p. 422-430, https://doi.org/10.2307/1941877.","productDescription":"9 p.","startPage":"422","endPage":"430","numberOfPages":"9","costCenters":[],"links":[{"id":132145,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad3e4b07f02db681d17","contributors":{"authors":[{"text":"Kendall, Katherine C. 0000-0002-4831-2287 kkendall@usgs.gov","orcid":"https://orcid.org/0000-0002-4831-2287","contributorId":3081,"corporation":false,"usgs":true,"family":"Kendall","given":"Katherine","email":"kkendall@usgs.gov","middleInitial":"C.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":318333,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Metzgar, Lee H.","contributorId":39325,"corporation":false,"usgs":true,"family":"Metzgar","given":"Lee","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":318332,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Patterson, David A.","contributorId":175326,"corporation":false,"usgs":false,"family":"Patterson","given":"David","email":"","middleInitial":"A.","affiliations":[{"id":36482,"text":"Department of Mathematical Sciences, University of Montana","active":true,"usgs":false}],"preferred":false,"id":318330,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Steele, Brian M.","contributorId":175327,"corporation":false,"usgs":false,"family":"Steele","given":"Brian","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":318331,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70017311,"text":"70017311 - 1992 - Late Cenozoic lacustrine and climatic environments at Tule Lake, northern Great Basin, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:18:53","indexId":"70017311","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1248,"text":"Climate Dynamics","active":true,"publicationSubtype":{"id":10}},"title":"Late Cenozoic lacustrine and climatic environments at Tule Lake, northern Great Basin, USA","docAbstract":"Cores of lake sediment to a depth of 334 m in the town of Tulelake, Siskiyou County, northern California, document the late Cenozoic paleolimnologic and paleoclimatic history of the northwestern edge of the Great Basin. The cores have been dated by radiometric, tephrochronologic and paleomagnetic analyses. Lacustrine diatoms are abundant throughout the record and document a nearly continuous paleolimnologic history of the Tule Lake basin for the last 3 Myr. During most of this time, this basin (Tule Lake) was a relatively deep, extensive lake. Except for a drier (and cooler?) interval recorded by Fragilaria species about 2.4 Ma, the Pliocene is characterized by a dominance of planktonic Aulacoseira solida implying a warm monomictic lake under a climatic regime of low seasonality. Much of the Pleistocene is dominated by Stephanodiscus and Fragilaria species suggesting a cooler, often drier, and highly variable climate. Benthic diatoms typical of alkaline-enriched saline waters commonly appear after 1.0 Ma, and tephrochronology indicates slow deposition and possible hiatuses between about 0.6 and 0.2 Ma. The chronology of even-numbered oxygen isotope stages approximately matches fluctuations in the abundance of Fragilaria since 800 ka indicating that glacial periods were expressed as drier environments at Tule Lake. Glacial and interglacial environments since 150 ka were distinct from, and more variable than, those occurring earlier. The last full glacial period was very dry, but shortly thereafter Tule Lake became a deep, cool lacustrine system indicating a substantial increase in precipitation. Aulacoseira ambigua characterized the latest glacial and Holocene record of Tule Lake. Its distribution indicates that warmer and wetter climates began about 15 ka in this part of the Great Basin. Diatom concentration fluctuates at 41 000 year intervals between 3.0 and 2.5 Ma and at approximately 100 000 year intervals after 1.0 Ma. In the late Pliocene and early Pleistocene, Aulacoseira solida percentages wax and wane in an approximately 400 000 year cycle. The possible response of Tule Lake diatom communities to orbitally-induced insolation cycles underscores the importance of this record for the study of late Cenozoic paleoclimate change. ?? 1992 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Climate Dynamics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF00193541","issn":"09307575","usgsCitation":"Platt, B.J., 1992, Late Cenozoic lacustrine and climatic environments at Tule Lake, northern Great Basin, USA: Climate Dynamics, v. 6, no. 3-4, p. 275-285, https://doi.org/10.1007/BF00193541.","startPage":"275","endPage":"285","numberOfPages":"11","costCenters":[],"links":[{"id":225165,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":205606,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF00193541"}],"volume":"6","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a44c5e4b0c8380cd66d7a","contributors":{"authors":[{"text":"Platt, Bradbury J.","contributorId":67651,"corporation":false,"usgs":true,"family":"Platt","given":"Bradbury","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":376079,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70017316,"text":"70017316 - 1992 - Toxicity reduction of photo processing wastewaters","interactions":[],"lastModifiedDate":"2024-04-26T16:54:31.144426","indexId":"70017316","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2264,"text":"Journal of Environmental Science and Health - Part A Environmental Science and Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Toxicity reduction of photo processing wastewaters","docAbstract":"

The photo processing industry can be characterized by treatment processes and subsequent silver recovery. The effluents generated all contain various amounts of silver. The objectives of this study were to determine toxicity of photo processing effluents and to explore their toxicity mitigation. Six samples, from small shops to a major photo processing center, were studied. Two samples (I and VI) were found to be extremely toxic, causing 100 and 99% inhibition of duckweed frond reproduction, respectively, and were used for subsequent toxicity reduction experiments. Lime and sodium sulfide were effective for the toxicity reduction of Sample VI; both reduced its toxicity to negligible. Sample I was far more toxic and was first diluted to 2.2% and then treated with 0.5 g lime/100 mL, reducing toxicity from 100% to 12% inhibition.

","language":"English","publisher":"Taylor & Francis","doi":"10.1080/10934529209375798","issn":"03601226","usgsCitation":"Wang, W., 1992, Toxicity reduction of photo processing wastewaters: Journal of Environmental Science and Health - Part A Environmental Science and Engineering, v. 27, no. 5, p. 1313-1328, https://doi.org/10.1080/10934529209375798.","productDescription":"16 p.","startPage":"1313","endPage":"1328","numberOfPages":"16","costCenters":[],"links":[{"id":225215,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb622e4b08c986b326a9d","contributors":{"authors":[{"text":"Wang, W.","contributorId":76003,"corporation":false,"usgs":true,"family":"Wang","given":"W.","affiliations":[],"preferred":false,"id":376092,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70017230,"text":"70017230 - 1992 - Interference fringes on GLORIA side-scan sonar images from the Bering Sea and their implications","interactions":[],"lastModifiedDate":"2012-03-12T17:18:48","indexId":"70017230","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2668,"text":"Marine Geophysical Research","active":true,"publicationSubtype":{"id":10}},"title":"Interference fringes on GLORIA side-scan sonar images from the Bering Sea and their implications","docAbstract":"GLORIA side-scan sonographs from the Bering Sea Basin show a complex pattern of interference fringes sub-parallel to the ship's track. Surveys along the same trackline made in 1986 and 1987 show nearly identical patterns. It is concluded from this that the interference patterns are caused by features in the shallow subsurface rather than in the water column. The fringes are interpreted as a thin-layer interference effect that occurs when some of the sound reaching the seafloor passes through it and is reflected off a subsurface layer. The backscattered sound interferes (constructively or desctructively) with the reflected sound. Constructive/destructive interference occurs when the difference in the length of the two soundpaths is a whole/half multiple of GLORIA's 25 cm wavelength. Thus as range from the ship increases, sound moves in and out of phase causing bands of greater and lesser intensity on the GLORIA sonograph. Fluctuations (or 'wiggles') of the fringes on the GLORIA sonographs relate to changes in layer thickness. In principle, a simple three dimensional image of the subsurface layer may be obtained using GLORIA and bathymetric data from adjacent (parallel) ship's tracks. These patterns have also been identified in images from two other systems; SeaMARC II (12 kHz) long-range sonar, and TOBI (30 kHz) deep-towed sonar. In these, and other cases world-wide, the fringes do not appear with the same persistence as those seen in the Bering Sea. ?? 1992 Kluwer Academic Publishers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Geophysical Researches","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Kluwer Academic Publishers","doi":"10.1007/BF01674065","issn":"00253235","usgsCitation":"Huggett, Q., Cooper, A.K., Somers, M.L., and Stubbs, A., 1992, Interference fringes on GLORIA side-scan sonar images from the Bering Sea and their implications: Marine Geophysical Research, v. 14, no. 1, p. 47-63, https://doi.org/10.1007/BF01674065.","startPage":"47","endPage":"63","numberOfPages":"17","costCenters":[],"links":[{"id":205528,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01674065"},{"id":224685,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3cfae4b0c8380cd631d9","contributors":{"authors":[{"text":"Huggett, Q.J.","contributorId":89155,"corporation":false,"usgs":true,"family":"Huggett","given":"Q.J.","email":"","affiliations":[],"preferred":false,"id":375825,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cooper, A. K.","contributorId":50149,"corporation":false,"usgs":true,"family":"Cooper","given":"A.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":375823,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Somers, M. L.","contributorId":79108,"corporation":false,"usgs":true,"family":"Somers","given":"M.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":375824,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stubbs, A.R.","contributorId":103802,"corporation":false,"usgs":true,"family":"Stubbs","given":"A.R.","email":"","affiliations":[],"preferred":false,"id":375826,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70017318,"text":"70017318 - 1992 - Ammonia fixation by humic substances: A nitrogen-15 and carbon-13 NMR study","interactions":[],"lastModifiedDate":"2019-03-14T06:30:51","indexId":"70017318","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5331,"text":"Science of Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Ammonia fixation by humic substances: A nitrogen-15 and carbon-13 NMR study","docAbstract":"The process of ammonia fixation has been studied in three well characterized and structurally diverse fulvic and humic acid samples. The Suwannee River fulvic acid, and the IHSS peat and leonardite humic acids, were reacted with 15N-labelled ammonium hydroxide, and analyzed by liquid phase 15N NMR spectrometry. Elemental analyses and liquid phase 13C NMR spectra also were recorded on the samples before and after reaction with ammonium hydroxide. The largest increase in percent nitrogen occurred with the Suwannee River fulvic acid, which had a nitrogen content of 0.88% before fixation and 3.17% after fixation. The 15N NMR spectra revealed that ammonia reacted similarly with all three samples, indicating that the functional groups which react with ammonia exist in structural configurations common to all three samples. The majority of nitrogcn incorporated into the samples appears to be in the form of indole and pyrrole nitrogen, followed by pyridine, pyrazine, amide and aminohydroquinone nitrogen. Chemical changes in the individual samples upon fixation could not be discerned from the 13C NMR spectra.","language":"English","publisher":"Elsevier ","doi":"10.1016/0048-9697(92)90017-M","issn":"00489697","usgsCitation":"Thorn, K.A., and Mikita, M., 1992, Ammonia fixation by humic substances: A nitrogen-15 and carbon-13 NMR study: Science of Total Environment, v. 113, no. 1-2, p. 67-87, https://doi.org/10.1016/0048-9697(92)90017-M.","productDescription":"21 p.","startPage":"67","endPage":"87","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":224495,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"113","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e9bee4b0c8380cd48412","contributors":{"authors":[{"text":"Thorn, K. A.","contributorId":33294,"corporation":false,"usgs":true,"family":"Thorn","given":"K.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":376117,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mikita, M.A.","contributorId":20081,"corporation":false,"usgs":true,"family":"Mikita","given":"M.A.","affiliations":[],"preferred":false,"id":376116,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70017106,"text":"70017106 - 1992 - Characteristics of a sandy depositional lobe on the outer Mississippi fan from SeaMARC IA sidescan sonar images","interactions":[],"lastModifiedDate":"2024-01-22T13:22:47.519085","indexId":"70017106","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Characteristics of a sandy depositional lobe on the outer Mississippi fan from SeaMARC IA sidescan sonar images","docAbstract":"

SeaMARC IA sidescan sonar images of the distal reaches of a depositional lobe on the Mississippi Fan show that channelized rather than unconfined transport was the dominant transport mechanism for coarse-grained sediment during the formation of this part of the deep-sea fan. Overbank sheet flow of sands was not an important process in the transport and deposition of the sandy and silty sediment found on this fan. The dendritic distributary pattern and the high order of splaying of the channels, only one of which appears to have been active at a time, suggest that coarse-grained deposits on this fan are laterally discontinuous.

","language":"English","publisher":"Geological Society of London","doi":"10.1130/0091-7613(1992)020<0689:COASDL>2.3.CO;2","issn":"00917613","usgsCitation":"Twichell, D., Schwab, W.C., Nelson, C., Kenyon, N.H., and Lee, H., 1992, Characteristics of a sandy depositional lobe on the outer Mississippi fan from SeaMARC IA sidescan sonar images: Geology, v. 20, no. 8, p. 689-692, https://doi.org/10.1130/0091-7613(1992)020<0689:COASDL>2.3.CO;2.","productDescription":"4 p.","startPage":"689","endPage":"692","numberOfPages":"4","costCenters":[],"links":[{"id":224820,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"20","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f493e4b0c8380cd4bdca","contributors":{"authors":[{"text":"Twichell, D.C.","contributorId":84304,"corporation":false,"usgs":true,"family":"Twichell","given":"D.C.","affiliations":[],"preferred":false,"id":375425,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schwab, W. C.","contributorId":78740,"corporation":false,"usgs":true,"family":"Schwab","given":"W.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":375424,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, C.H.","contributorId":88346,"corporation":false,"usgs":true,"family":"Nelson","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":375426,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kenyon, Neil H.","contributorId":89535,"corporation":false,"usgs":false,"family":"Kenyon","given":"Neil","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":375427,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lee, H.J.","contributorId":96693,"corporation":false,"usgs":true,"family":"Lee","given":"H.J.","email":"","affiliations":[],"preferred":false,"id":375428,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70017104,"text":"70017104 - 1992 - Widespread buried Precambrian layered sequences in the U.S. mid- continent: Evidence for large Proterozoic depositional basins","interactions":[],"lastModifiedDate":"2023-01-19T17:30:17.436221","indexId":"70017104","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":701,"text":"American Association of Petroleum Geologists Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Widespread buried Precambrian layered sequences in the U.S. mid- continent: Evidence for large Proterozoic depositional basins","docAbstract":"

Large regions of the North American mid-continent are underlain by Precambrian layered rocks buried beneath Phanerozoic sedimentary strata. South of the Wichita Mountains, published seismic reflection profiles show a Precambrian layered assemblage extending for at least 40 km in both the north-south and east-west directions, and industry data show that it may continue 150 km to the southeast. Seismic reflection data in the Illinois region show a Precambrian layered assemblage extending 320 km in an east-west direction and 200 km in a north-south direction. In both cases, the layered rocks are as much as 12 km thick. Apparent sequence boundaries (onlap, downlap) within these assemblages suggest they are parts of large depositional basins with diffractions and dipping strat due to faulting. The layered sequences correlate with regions of relatively long-wavelength and low-amplitude magnetic anomalies; the extent of this magnetic signature suggests that about 200,000 km{2} of Illinois, Indiana, and western Ohio, about 50,000 km{2} of southernmost Oklahoma and north-central Texas, and about 32,000 km{2} of southern Missouri and northern Arkansas may be underlain by similar Precambrian strata.

Drill holes indicate that the top of the mid-continent Precambrian \"basement\" is composed largely of silicic igneous rocks. Such material may comprise a large part of the layered sequences. Alternatively, these igneous rocks could be intermixed with, or underlain by, nonvolcanic (meta?)sedimentary strata. The strong reflectivity of some layers suggest that minor mafic flows and/or sills may also be present. Analysis of U/Pb and Nd/Sm isotopes within the granites and rhyolites imply that the layered sequences postdate crustal formation at 1.7-2.0 Ga and predate or are contemporaneous with the 1.3-1.5 Ga crystallization ages of the granites and rhyolites. Though these layered rocks have a spatial association with igneous rocks and thus have likely been metamorphosed, the possibility tha they contain Precambrian hydrocarbons that escaped heating is as yet untested.

","language":"English","publisher":"American Association of Petroleum Geologists","doi":"10.1306/BDFF89FC-1718-11D7-8645000102C1865D","usgsCitation":"Pratt, T.L., Hauser, E., and Nelson, K.D., 1992, Widespread buried Precambrian layered sequences in the U.S. mid- continent: Evidence for large Proterozoic depositional basins: American Association of Petroleum Geologists Bulletin, v. 76, no. 9, p. 1384-1401, https://doi.org/10.1306/BDFF89FC-1718-11D7-8645000102C1865D.","productDescription":"16 p.","startPage":"1384","endPage":"1401","numberOfPages":"18","costCenters":[],"links":[{"id":224818,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Mid-continent region","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -82,\n 44\n ],\n [\n -105,\n 44\n ],\n [\n -105,\n 31\n ],\n [\n -82,\n 31\n ],\n [\n -82,\n 44\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"76","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bd0afe4b08c986b32efd4","contributors":{"authors":[{"text":"Pratt, T. L.","contributorId":53072,"corporation":false,"usgs":true,"family":"Pratt","given":"T.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":375420,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hauser, E.C.","contributorId":41150,"corporation":false,"usgs":true,"family":"Hauser","given":"E.C.","email":"","affiliations":[],"preferred":false,"id":375419,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, Kim","contributorId":92810,"corporation":false,"usgs":false,"family":"Nelson","given":"Kim","affiliations":[],"preferred":false,"id":375421,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70017167,"text":"70017167 - 1992 - Tecuamburro Volcano, Guatemala: Exploration geothermal gradient drilling and results","interactions":[],"lastModifiedDate":"2024-04-19T18:56:42.514519","indexId":"70017167","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1828,"text":"Geothermics","active":true,"publicationSubtype":{"id":10}},"title":"Tecuamburro Volcano, Guatemala: Exploration geothermal gradient drilling and results","docAbstract":"

Results of geological, volcanological, hydrogeochemical, and geophysical field studies conducted in 1988 and 1989 at the Tecuamburro geothermal site, Guatemala, indicate that there is a substantial shallow heat source beneath the area of youngest volcanism. Gases from acid-sulfate springs near Laguna Ixpaco consistently yield maximum estimated subsurface temperatures of 300°C. To obtain information on subsurface temperatures and temperature gradients, stratigraphy, fracturing, hydrothermal alteration, and hydrothermal fluids, a geothermal gradient core hole (TCB-1) was drilled to 808 m low on the northern flank of the Tecuamburro Volcano complex. The hole is located 300 m south of a 300m-diameter phreatic crater. Laguna Ixpaco, dated at 2910 years. TCB-1 temperature logs do not indicate isothermal conditions at depth and the calculated thermal gradient from 500–800 m is 230°C/km. Bottom hole temperature is close to 240°C. Calculated heat flow values are around 350–400 mW/m2. Fluid-inclusion and secondary-alteration studies indicate that veins and secondary minerals were formed at temperatures equal to or slightly less than present temperatures; thus, the Tecuamburro geothermal system may still be heating up. The integration of results from the TCB-1 gradient core hole with results from field studies provides strong evidence that the Tecuamburro area holds great promise for geothermal resource development.

","language":"English","publisher":"Elsevier","doi":"10.1016/0375-6505(92)90003-R","issn":"03756505","usgsCitation":"Goff, S., Goff, F., and Janik, C.J., 1992, Tecuamburro Volcano, Guatemala: Exploration geothermal gradient drilling and results: Geothermics, v. 21, no. 4, p. 483-502, https://doi.org/10.1016/0375-6505(92)90003-R.","productDescription":"20 p.","startPage":"483","endPage":"502","costCenters":[],"links":[{"id":225056,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Guatemala","otherGeospatial":"Tecuamburro Volcano","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -90.38709997544062,\n 14.13568410084683\n ],\n [\n -90.3710184720679,\n 14.121316449903588\n ],\n [\n -90.36118068225602,\n 14.124631346908927\n ],\n [\n -90.35409413874767,\n 14.133120497208054\n ],\n [\n -90.35517796304872,\n 14.143953809969773\n ],\n [\n -90.35592830294979,\n 14.154410341728209\n ],\n [\n -90.3610973111562,\n 14.167667710327933\n ],\n [\n -90.35651190065057,\n 14.170173589347641\n ],\n [\n -90.34700759523932,\n 14.180277659443206\n ],\n [\n -90.36792462241712,\n 14.18813131940054\n ],\n [\n -90.37867949432975,\n 14.186029782694888\n ],\n [\n -90.40043935145574,\n 14.192495987208929\n ],\n [\n -90.41252816097015,\n 14.189182080445093\n ],\n [\n -90.41836413797716,\n 14.18248948002423\n ],\n [\n -90.42520056818539,\n 14.1661612379894\n ],\n [\n -90.42369988838387,\n 14.152742100364932\n ],\n [\n -90.41844750907764,\n 14.14514296007836\n ],\n [\n -90.40719241056412,\n 14.137139335564072\n ],\n [\n -90.39752136295259,\n 14.137462719792694\n ],\n [\n -90.38709997544062,\n 14.13568410084683\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"21","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba493e4b08c986b320445","contributors":{"authors":[{"text":"Goff, S.J.","contributorId":30372,"corporation":false,"usgs":true,"family":"Goff","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":375607,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goff, F.","contributorId":53408,"corporation":false,"usgs":true,"family":"Goff","given":"F.","email":"","affiliations":[],"preferred":false,"id":375608,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Janik, C. J.","contributorId":10795,"corporation":false,"usgs":true,"family":"Janik","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":375606,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70180674,"text":"70180674 - 1992 - Fabrication of stainless steel spherical anodes for use with boat-mounted boom electroshocker","interactions":[],"lastModifiedDate":"2017-01-31T12:48:39","indexId":"70180674","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Fabrication of stainless steel spherical anodes for use with boat-mounted boom electroshocker","docAbstract":"

A frugal method of fabricating spherical anodes from stainless steel mixing bowls is presented. We believe that the purported mechanical disadvantages of using spherical electrodes are largely unfounded.

","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8675(1992)012<0840:FOSSSA>2.3.CO;2","usgsCitation":"Martinez, P.J., and Tiffan, K.F., 1992, Fabrication of stainless steel spherical anodes for use with boat-mounted boom electroshocker: North American Journal of Fisheries Management, v. 12, no. 4, p. 840-843, https://doi.org/10.1577/1548-8675(1992)012<0840:FOSSSA>2.3.CO;2.","productDescription":"4 p. ","startPage":"840","endPage":"843","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334462,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5891b0bde4b072a7ac129992","contributors":{"authors":[{"text":"Martinez, Patrick J.","contributorId":48433,"corporation":false,"usgs":true,"family":"Martinez","given":"Patrick","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":661966,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tiffan, Kenneth F. 0000-0002-5831-2846 ktiffan@usgs.gov","orcid":"https://orcid.org/0000-0002-5831-2846","contributorId":3200,"corporation":false,"usgs":true,"family":"Tiffan","given":"Kenneth","email":"ktiffan@usgs.gov","middleInitial":"F.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":661967,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70180686,"text":"70180686 - 1992 - Significance of selective predation and development of prey protection measures for juvenile salmonids in Columbia and Snake River reservoirs. Annual report 1991","interactions":[],"lastModifiedDate":"2017-01-31T13:28:35","indexId":"70180686","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Significance of selective predation and development of prey protection measures for juvenile salmonids in Columbia and Snake River reservoirs. Annual report 1991","docAbstract":"

No abstract available 

","language":"English","publisher":"Bonneville power Administration","publisherLocation":"Portland, OR","usgsCitation":"Poe, T., 1992, Significance of selective predation and development of prey protection measures for juvenile salmonids in Columbia and Snake River reservoirs. Annual report 1991.","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334477,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5891b0bce4b072a7ac129986","contributors":{"authors":[{"text":"Poe, T.P.","contributorId":51687,"corporation":false,"usgs":true,"family":"Poe","given":"T.P.","email":"","affiliations":[],"preferred":false,"id":662008,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70180675,"text":"70180675 - 1992 - The vulnerability of juvenile Chinook salmon to predation by northern squawfish","interactions":[],"lastModifiedDate":"2017-01-31T12:52:38","indexId":"70180675","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"The vulnerability of juvenile Chinook salmon to predation by northern squawfish","docAbstract":"

No abstract available 

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Passage and survival of juvenile Chinook salmon migrating from the Snake River basin. Proceedings of a technical workshop","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceDate":"February 26-28, 1992","language":"English","publisher":"University of Idaho","usgsCitation":"Mesa, M., Gadomski, D., and Olson, T., 1992, The vulnerability of juvenile Chinook salmon to predation by northern squawfish, in Passage and survival of juvenile Chinook salmon migrating from the Snake River basin. Proceedings of a technical workshop, February 26-28, 1992, p. 173-179.","productDescription":"7 p. ","startPage":"173","endPage":"179","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334464,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5891b0bde4b072a7ac129990","contributors":{"authors":[{"text":"Mesa, M.G.","contributorId":17386,"corporation":false,"usgs":true,"family":"Mesa","given":"M.G.","email":"","affiliations":[],"preferred":false,"id":661973,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gadomski, D.M.","contributorId":37101,"corporation":false,"usgs":true,"family":"Gadomski","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":661974,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olson, T.M.","contributorId":178996,"corporation":false,"usgs":false,"family":"Olson","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":661975,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70176509,"text":"70176509 - 1992 - Organizational changes at Earthquakes & Volcanoes","interactions":[],"lastModifiedDate":"2016-09-19T15:12:47","indexId":"70176509","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1437,"text":"Earthquakes & Volcanoes (USGS)","active":true,"publicationSubtype":{"id":10}},"title":"Organizational changes at Earthquakes & Volcanoes","docAbstract":"

Primary responsibility for the preparation of <i>Earthquakes & Volcanoes</i> within the Geological Survey has shifted from the Office of Scientific Publications to the Office of Earthquakes, Volcanoes, and Engineering (OEVE). As a consequence of this reorganization, Henry Spall has stepepd down as Science Editor for <i>Earthquakes & Volcanoes(E&V)</i>.

","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"1992, Organizational changes at Earthquakes & Volcanoes: Earthquakes & Volcanoes (USGS), v. 23, no. 1, p. 4-4.","productDescription":"1 p.","startPage":"4","endPage":"4","costCenters":[],"links":[{"id":328740,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"23","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57feb5f6e4b0824b2d155196","contributors":{"editors":[{"text":"Gordon, David W.","contributorId":92328,"corporation":false,"usgs":true,"family":"Gordon","given":"David","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":649035,"contributorType":{"id":2,"text":"Editors"},"rank":1}]}} ,{"id":70017255,"text":"70017255 - 1992 - Evidence for ammonium-bearing minerals on Ceres","interactions":[],"lastModifiedDate":"2022-12-22T16:51:45.675699","indexId":"70017255","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Evidence for ammonium-bearing minerals on Ceres","docAbstract":"

Spectra obtained from recent telescopic observation of 1-Ceres and laboratory measurements and theoretical calculations of three component mixtures of Ceres analog material suggest that an ammoniated phyllosilicate is present on the surface of the asteroid, rather than H2O frost as had been previously reported. The presence of an ammoniated phyllosilicate, most likely ammoniated saponite, on the surface of Ceres implies that secondary temperatures could not have exceeded 400 kelvin.

","language":"English","publisher":"AAAS","doi":"10.1126/science.255.5051.1551","usgsCitation":"King, T., Clark, R.N., Calvin, W.M., Sherman, D.M., and Brown, R.H., 1992, Evidence for ammonium-bearing minerals on Ceres: Science, v. 255, no. 5051, p. 1551-1553, https://doi.org/10.1126/science.255.5051.1551.","productDescription":"3 p.","startPage":"1551","endPage":"1553","numberOfPages":"3","costCenters":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":479633,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2060/19910010691","text":"External Repository"},{"id":225060,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Ceres","volume":"255","issue":"5051","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0d34e4b0c8380cd52e90","contributors":{"authors":[{"text":"King, Trude V. V.","contributorId":46154,"corporation":false,"usgs":false,"family":"King","given":"Trude V. V.","affiliations":[],"preferred":false,"id":375898,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, Roger N. 0000-0002-7021-1220 rclark@usgs.gov","orcid":"https://orcid.org/0000-0002-7021-1220","contributorId":515,"corporation":false,"usgs":true,"family":"Clark","given":"Roger","email":"rclark@usgs.gov","middleInitial":"N.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":375899,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Calvin, W. M.","contributorId":17379,"corporation":false,"usgs":false,"family":"Calvin","given":"W.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":375900,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Sherman, David M.","contributorId":73218,"corporation":false,"usgs":true,"family":"Sherman","given":"David","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":375902,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brown, R. H.","contributorId":19931,"corporation":false,"usgs":false,"family":"Brown","given":"R.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":375901,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70180682,"text":"70180682 - 1992 - Effects of light intensity on northern squawfish capture of juvenile salmonids in the laboratory","interactions":[],"lastModifiedDate":"2017-01-31T13:15:48","indexId":"70180682","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Effects of light intensity on northern squawfish capture of juvenile salmonids in the laboratory","docAbstract":"

No abstract available

","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Significance of selective predation and development of prey protection measures for juvenile salmonids in Columbia and Snake River reservoirs","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"Bonneville Power Administration","publisherLocation":"Portland, OR","usgsCitation":"Petersen, J., and Gadomski, D., 1992, Effects of light intensity on northern squawfish capture of juvenile salmonids in the laboratory, 14 p. .","productDescription":"14 p. ","startPage":"101","endPage":"114","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":334474,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5891b0bce4b072a7ac12998a","contributors":{"authors":[{"text":"Petersen, J.H.","contributorId":72154,"corporation":false,"usgs":true,"family":"Petersen","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":662000,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gadomski, D.M.","contributorId":37101,"corporation":false,"usgs":true,"family":"Gadomski","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":662001,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70179202,"text":"70179202 - 1992 - Impact of bacterial kidney disease on Chinook salmon smolts during migration, collection, and transportation","interactions":[],"lastModifiedDate":"2016-12-21T15:49:43","indexId":"70179202","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Impact of bacterial kidney disease on Chinook salmon smolts during migration, collection, and transportation","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the Chinook Salmon Smolt Survival Workshop presented by the Idaho Chapter, American Fisheries Society","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Idaho Cooperative Fish and Wildlife Research Unit","publisherLocation":"Moscow, ID","usgsCitation":"Elliott, D.G., 1992, Impact of bacterial kidney disease on Chinook salmon smolts during migration, collection, and transportation, in Proceedings of the Chinook Salmon Smolt Survival Workshop presented by the Idaho Chapter, American Fisheries Society, p. 191-202.","productDescription":"12 p.","startPage":"191","endPage":"202","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":332426,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"585ba2f9e4b01224f329b990","contributors":{"authors":[{"text":"Elliott, Diane G. 0000-0002-4809-6692 dgelliott@usgs.gov","orcid":"https://orcid.org/0000-0002-4809-6692","contributorId":2947,"corporation":false,"usgs":true,"family":"Elliott","given":"Diane","email":"dgelliott@usgs.gov","middleInitial":"G.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":656375,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":26300,"text":"wri924018 - 1992 - Hydrology of the Cave Springs area near Chattanooga, Hamilton County, Tennessee","interactions":[],"lastModifiedDate":"2026-04-06T19:36:13.528626","indexId":"wri924018","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":342,"text":"Water-Resources Investigations Report","code":"WRI","active":false,"publicationSubtype":{"id":5}},"seriesNumber":"92-4018","title":"Hydrology of the Cave Springs area near Chattanooga, Hamilton County, Tennessee","docAbstract":"

The hydrology of Cave Springs, the second largest spring in East Tennessee was investigated from July 1987 to September 1989. Wells near the spring supply about 5 million gallons per day of potable water to people in Hamilton County near Chattanooga. Discharge from the spring averaged about 13.5 cubic feet per second (8.72 million gallons per day) during the study period. Withdrawals by the Hixson Utility District from wells upgradient from the outflow averaged 8.6 cubic feet per second (5.54 million gallons per day). Aquifer tests using wells intersecting a large solution cavity supplying water to the spring showed a drawdown of less than 3 feet with a discharge of 9,000 gallons per minute or 20 cubic feet per second.

Temperature and specific conductance of ground water near the spring outflow were monitored hourly. Temperatures ranged from 13.5 to 18.2 degrees celsius, and fluctuated seasonally in response to climate. Specific-conductance values ranged from 122 to 405 microsiemens per centimeter at 25 degrees Celsius, but were generally between 163 to 185 microsiemens per centimeter.

The drainage area of the basin recharging the spring system was estimated to be 1O square miles. A potentiometric map of the recharge basin was developed from water levels measured at domestic and test wells in August 1989. Aquifer tests at five test wells in the study area indicated that specific-capacity values for these wells ranged from 4.1 to 261 gallons per minute per foot of drawdown. Water-quality characteristics of ground water in the area were used in conjunction with potentiometric-surface maps to delineate the approximate area contributing recharge to Cave Springs.

","language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/wri924018","collaboration":"Prepared in cooperation with the Hixson Utility District","usgsCitation":"Bradfield, A.D., 1992, Hydrology of the Cave Springs area near Chattanooga, Hamilton County, Tennessee: U.S. Geological Survey Water-Resources Investigations Report 92-4018, iv, 28 p. :ill., maps ;28 cm., https://doi.org/10.3133/wri924018.","productDescription":"iv, 28 p.","costCenters":[],"links":[{"id":502216,"rank":3,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/wri/wri92-4018/pdf/wrir_92-4018_a.pdf","linkFileType":{"id":1,"text":"pdf"}},{"id":122969,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/wri_92_4018.jpg"},{"id":1998,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/wri/wri92-4018/index.html","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Tennessee","county":"Hamilton County","otherGeospatial":"Cave Springs","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db601f5b","contributors":{"authors":[{"text":"Bradfield, Arthur D.","contributorId":88383,"corporation":false,"usgs":true,"family":"Bradfield","given":"Arthur","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":196137,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1014577,"text":"1014577 - 1992 - Notes: Differences in stocks of American shad from the Columbia and Delaware rivers","interactions":[],"lastModifiedDate":"2026-04-06T16:41:53.899917","indexId":"1014577","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Notes: Differences in stocks of American shad from the Columbia and Delaware rivers","docAbstract":"

American shad Alosa sapidissima from the Columbia River on the Pacific coast and the Delaware River on the Atlantic coast were reared from 3 June to 24 October 1986 in two adjacent hypalon‐lined ponds. Although fish from the Columbia River were introduced into ponds 29 d after those from the Delaware River, they grew significantly faster and attained a greater final weight. Fish from the Columbia River also had lower mortalities at all test salinities and temperatures than fish from the Delaware River. Electrophoresis revealed allelic differences between the two stocks at one locus (creatine kinase). We conclude that the two stocks of American shad are sufficiently different so that managers should not introduce them to different river systems without careful consideration.

","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1992)121<0132:NDISOA>2.3.CO;2","usgsCitation":"Rottiers, D.V., Redell, L.A., Booke, H., and Amaral, S., 1992, Notes: Differences in stocks of American shad from the Columbia and Delaware rivers: Transactions of the American Fisheries Society, v. 121, no. 1, p. 132-136, https://doi.org/10.1577/1548-8659(1992)121<0132:NDISOA>2.3.CO;2.","productDescription":"5 p.","startPage":"132","endPage":"136","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":130842,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Columbia River, Delaware River","volume":"121","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d768","contributors":{"authors":[{"text":"Rottiers, D. V.","contributorId":49301,"corporation":false,"usgs":true,"family":"Rottiers","given":"D.","middleInitial":"V.","affiliations":[],"preferred":false,"id":320647,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Redell, Lori A.","contributorId":66204,"corporation":false,"usgs":true,"family":"Redell","given":"Lori","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":320648,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Booke, H.E.","contributorId":78269,"corporation":false,"usgs":true,"family":"Booke","given":"H.E.","email":"","affiliations":[],"preferred":false,"id":320649,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Amaral, S.","contributorId":105265,"corporation":false,"usgs":true,"family":"Amaral","given":"S.","email":"","affiliations":[],"preferred":false,"id":320650,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":1012910,"text":"1012910 - 1992 - Molt frequency and size class distribution in the California spiny lobster (Panulirus interruptus), at San Nicolas Island, California","interactions":[],"lastModifiedDate":"2017-06-28T15:48:10","indexId":"1012910","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1153,"text":"California Fish and Game","active":true,"publicationSubtype":{"id":10}},"title":"Molt frequency and size class distribution in the California spiny lobster (Panulirus interruptus), at San Nicolas Island, California","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"California Fish and Game","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Bodkin, J.L., and Browne, L., 1992, Molt frequency and size class distribution in the California spiny lobster (Panulirus interruptus), at San Nicolas Island, California: California Fish and Game, v. 78, no. 4, p. 136-144.","productDescription":"pp. 136-144","startPage":"136","endPage":"144","numberOfPages":"9","costCenters":[{"id":106,"text":"Alaska Biological Science Center","active":false,"usgs":true}],"links":[{"id":130758,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"78","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b04e4b07f02db699240","contributors":{"authors":[{"text":"Bodkin, James L. 0000-0003-1641-4438 jbodkin@usgs.gov","orcid":"https://orcid.org/0000-0003-1641-4438","contributorId":748,"corporation":false,"usgs":true,"family":"Bodkin","given":"James","email":"jbodkin@usgs.gov","middleInitial":"L.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":318433,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Browne, L.B.","contributorId":42919,"corporation":false,"usgs":true,"family":"Browne","given":"L.B.","email":"","affiliations":[],"preferred":false,"id":318434,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1000793,"text":"1000793 - 1992 - Implications for faunal habitat related to altered macrophyte structure in regulated lakes in northern Minnesota","interactions":[],"lastModifiedDate":"2016-04-25T09:03:45","indexId":"1000793","displayToPublicDate":"1992-01-01T00:00:00","publicationYear":"1992","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3750,"text":"Wetlands","onlineIssn":"1943-6246","printIssn":"0277-5212","active":true,"publicationSubtype":{"id":10}},"title":"Implications for faunal habitat related to altered macrophyte structure in regulated lakes in northern Minnesota","docAbstract":"

Water-level regulation has altered the plant species composition and thus the structure of nearshore aquatic macrophyte communities in two regulated lakes in northern Minnesota as compared with a nearby unregulated lake. Results of previous faunal studies in the regulated lakes were used as a basis for assessing the effects of vegetation changes on faunal communities. The unregulated lake with mean annual water-level fluctuations of 1.6 m supported structurally diverse plant communities and varied faunal habitat at all depths studied. Mean annual fluctuations on one regulated lake were reduced to 1.1 m, and dense beds of four erect aquatic macrophytes dominated the 1.75-m depth that was never dewatered. We suggest that this lack of plant diversity and structural complexity resulted in diminished habitat for invertebrates, reduced availability of invertebrates as food for waterbirds and fish, reduced winter food supplies for muskrats, and reduced feeding efficiency for adult northern pike, yellow perch, and muskellunge. Mean annual fluctuations in the other regulated lake were increased to 2.7 m, and rosette and mat-forming species dominated the 1.25-m depth that was affected by winter drawdowns. We suggest that the lack of larger canopy plants resulted in poor habitat for invertebrates, reduced availability of invertebrates as food for waterbirds and fish, and poor nursery and adult feeding habitat for many species of fish. In addition, the timing and extent of winter drawdowns reduced access to macrophytes as food for muskrats and as spawning habitat for northern pike and yellow perch. In regulated lakes throughout the world, indirect effects on aquatic fauna resulting from alteration of wetland and aquatic macrophyte communities should be considered when water-level management plans are developed.

","language":"English","publisher":"Springer","doi":"10.1007/BF03160609","usgsCitation":"Wilcox, D.A., and Meeker, J.E., 1992, Implications for faunal habitat related to altered macrophyte structure in regulated lakes in northern Minnesota: Wetlands, v. 12, no. 3, p. 192-203, https://doi.org/10.1007/BF03160609.","productDescription":"12 p.","startPage":"192","endPage":"203","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":479587,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/20.500.12648/2267","text":"External Repository"},{"id":133651,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688327","contributors":{"authors":[{"text":"Wilcox, Douglas A.","contributorId":36880,"corporation":false,"usgs":true,"family":"Wilcox","given":"Douglas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":309446,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Meeker, James E.","contributorId":80228,"corporation":false,"usgs":true,"family":"Meeker","given":"James","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":309447,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}