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","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.247.4948.1311","issn":"00368075","usgsCitation":"Delaney, P.T., Fiske, R., Miklius, A., Okamura, A.T., and Sako, M.K., 1990, Deep magma body beneath the summit and rift zones of Kilauea Volcano, Hawaii: Science, v. 247, no. 4948, p. 1311-1316, https://doi.org/10.1126/science.247.4948.1311.","productDescription":"6 p.","startPage":"1311","endPage":"1316","costCenters":[],"links":[{"id":224806,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -155.27297591654735,\n 19.450107822693624\n ],\n [\n -155.27297591654735,\n 19.411226663270085\n ],\n [\n -155.21068261991692,\n 19.411226663270085\n ],\n [\n -155.21068261991692,\n 19.450107822693624\n ],\n [\n -155.27297591654735,\n 19.450107822693624\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"247","issue":"4948","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fe26e4b0c8380cd4eb4f","contributors":{"authors":[{"text":"Delaney, Paul T.","contributorId":15195,"corporation":false,"usgs":true,"family":"Delaney","given":"Paul","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":374711,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fiske, R.S.","contributorId":47783,"corporation":false,"usgs":true,"family":"Fiske","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":374709,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Miklius, Asta 0000-0002-2286-1886 asta@usgs.gov","orcid":"https://orcid.org/0000-0002-2286-1886","contributorId":2060,"corporation":false,"usgs":true,"family":"Miklius","given":"Asta","email":"asta@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":374713,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Okamura, Arnold T.","contributorId":53782,"corporation":false,"usgs":true,"family":"Okamura","given":"Arnold","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":374712,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sako, Maurice K.","contributorId":19583,"corporation":false,"usgs":true,"family":"Sako","given":"Maurice","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":374710,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70221648,"text":"70221648 - 1990 - Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record","interactions":[],"lastModifiedDate":"2021-06-26T02:51:52.148555","indexId":"70221648","displayToPublicDate":"1990-03-01T21:45:31","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1723,"text":"GSA Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record","docAbstract":"We use magnetostratigraphy and Sr-isotope stratigraphy to improve stratigraphic control for the Eocene to Oligocene of the New Jersey coastal plain (ACGS4 borehole). Magnetostratigraphy in many cases is complicated in outcrop sections of shallow-water (<200 m paleodepth) sediments by low remanence and weathering; we minimize these problems by analyzing large samples obtained from the ACGS4 borehole and construct a firm magnetochronology for the early to middle Eocene. Sr-isotope stratigraphy confirms biostratigraphic evidence for a previously unknown uppermost Eocene to lowermost Oligocene unit and delineates a \"middle\" Oligocene hiatus that is unresolvabie using biostratigraphy alone. We recognize hiatuses and associated unconformities on the New Jersey margin near the lower Eocene/middle Eocene boundary, within the middle Eocene, and in the \"middle\" Oligocene and correlate these events with similar hiatuses observed in other continental-shelf, slope, and epicontinental settings. In addition, a hiatus probably occurred near the middle Eocene/upper Eocene boundary. We conclude that the interregional distribution of these Eocene-Oligocene hiatuses indicates a global cause: eustatic change.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1990)102%3C0331:EOSLCO%3E2.3.CO;2","usgsCitation":"Miller, K.G., Kent, D.V., Brower, A.N., Bybell, L.M., Feigenson, M.D., Olsson, R.K., and Poore, R.Z., 1990, Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record: GSA Bulletin, v. 102, no. 34, p. 331-339, https://doi.org/10.1130/0016-7606(1990)102%3C0331:EOSLCO%3E2.3.CO;2.","productDescription":"9 p.","startPage":"331","endPage":"339","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":386769,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Jersey","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -74.7564697265625,\n 38.89530825492018\n ],\n [\n -73.9874267578125,\n 39.74943369178247\n ],\n [\n -73.916015625,\n 40.463666324587685\n ],\n [\n -74.70703125,\n 40.50126945841645\n ],\n [\n -75.5145263671875,\n 39.57182223734374\n ],\n [\n -74.8883056640625,\n 38.839707613545144\n ],\n [\n -74.7564697265625,\n 38.89530825492018\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"102","issue":"34","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Miller, Kenneth G.","contributorId":14260,"corporation":false,"usgs":true,"family":"Miller","given":"Kenneth","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":818342,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kent, Dennis V.","contributorId":63951,"corporation":false,"usgs":true,"family":"Kent","given":"Dennis","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":818343,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brower, Andrew N.","contributorId":260652,"corporation":false,"usgs":false,"family":"Brower","given":"Andrew","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":818344,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bybell, Laurel M. 0000-0002-4760-7542 lbybell@usgs.gov","orcid":"https://orcid.org/0000-0002-4760-7542","contributorId":1760,"corporation":false,"usgs":true,"family":"Bybell","given":"Laurel","email":"lbybell@usgs.gov","middleInitial":"M.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":818345,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Feigenson, Mark D.","contributorId":35198,"corporation":false,"usgs":true,"family":"Feigenson","given":"Mark","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":818346,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Olsson, Richard K.","contributorId":260653,"corporation":false,"usgs":false,"family":"Olsson","given":"Richard","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":818347,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Poore, Richard Z. rpoore@usgs.gov","contributorId":147454,"corporation":false,"usgs":true,"family":"Poore","given":"Richard","email":"rpoore@usgs.gov","middleInitial":"Z.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":818348,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}} ,{"id":70242783,"text":"70242783 - 1990 - Eocene diatom chert from Adak Island, Alaska","interactions":[],"lastModifiedDate":"2023-04-17T20:53:19.124184","indexId":"70242783","displayToPublicDate":"1990-03-01T15:38:14","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2450,"text":"Journal of Sedimentary Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Eocene diatom chert from Adak Island, Alaska","docAbstract":"Bedded quartz cherts that contain recognizable diatoms are rare in the geologic record and are described here for the first time. The Eocene Andrew Lake Formation on Adak Island, Alaska consists of about 800 m of sedimentary and volcanogenic rocks. Quartz cherts containing diatoms occur in the upper part of the Andrew Lake Formation and crop out on the northern part of the island. The quartz chert formed at about 70 degrees C as determined by its oxygen isotopic composition. The diatoms were preserved in the chert because early and rapid alteration of ubiquitous volcanic glass in the section released silica and saturated the pore waters with respect to opal-A. Then, temperature rapidly increased with burial and the pore waters became undersaturated with respect to opal-A (biogenic silica), which occurred at a temperature greater than that needed to convert opal-CT to quartz. At this stage, delicate species of diatoms dissolved and quartz precipitated around the remaining more robust diatoms, forming diatom theft. Subsequently, grain-growth occurred and quartz replaced the frustules on a very fine scale.
","language":"English","publisher":"Society for Sedimentary Geology","doi":"10.1306/212F9165-2B24-11D7-8648000102C1865D","usgsCitation":"Hein, J.R., Yeh, H., and Barron, J.A., 1990, Eocene diatom chert from Adak Island, Alaska: Journal of Sedimentary Petrology, v. 60, no. 2, p. 250-257, https://doi.org/10.1306/212F9165-2B24-11D7-8648000102C1865D.","productDescription":"8 p.","startPage":"250","endPage":"257","costCenters":[],"links":[{"id":415888,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Adak Island","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -176.90344993253896,\n 51.70331308891042\n ],\n [\n -176.9339260856529,\n 51.70232912264052\n ],\n [\n -176.9730798901173,\n 51.678057157445636\n ],\n [\n -176.9874629203287,\n 51.661703397190394\n 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51.74142762747235\n ],\n [\n -176.87708104381804,\n 51.729056299702705\n ],\n [\n -176.8810763299879,\n 51.719651825518326\n ],\n [\n -176.90344993253896,\n 51.70331308891042\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"60","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hein, James R. 0000-0002-5321-899X jhein@usgs.gov","orcid":"https://orcid.org/0000-0002-5321-899X","contributorId":140835,"corporation":false,"usgs":true,"family":"Hein","given":"James","email":"jhein@usgs.gov","middleInitial":"R.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":869765,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yeh, Hseuh-Wen","contributorId":304219,"corporation":false,"usgs":false,"family":"Yeh","given":"Hseuh-Wen","email":"","affiliations":[],"preferred":false,"id":869766,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barron, John A. 0000-0002-9309-1145 jbarron@usgs.gov","orcid":"https://orcid.org/0000-0002-9309-1145","contributorId":2222,"corporation":false,"usgs":true,"family":"Barron","given":"John","email":"jbarron@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":869767,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70241948,"text":"70241948 - 1990 - Doctorate time rising sharply: How long should it take?","interactions":[],"lastModifiedDate":"2023-03-31T18:55:18.287149","indexId":"70241948","displayToPublicDate":"1990-03-01T13:45:02","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Doctorate time rising sharply: How long should it take?","docAbstract":"The period 1967–1987 saw a 20% increase in the time it takes to complete the doctorate. That figure is based on data provided by the National Research Council from 11 scientific and engineering fields, including the Earth, atmospheric and marine sciences.
The median time spent earning the degree rose from 5.4 years in 1967 to 6.1 years in 1977 to 6.9 years in 1987—an increase of 1.5 years in a single generation. Completion time still seems to be rising! All graduating doctoral students in 1987 had a median age of 33.6 years; chemistry students were youngest at 29, and education students were the oldsters at 39.8 years.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/EO071i013p00353-02","usgsCitation":"Glen, W., 1990, Doctorate time rising sharply: How long should it take?: Eos, Transactions, American Geophysical Union, v. 71, no. 13, p. 354-354, https://doi.org/10.1029/EO071i013p00353-02.","productDescription":"1 p.","startPage":"354","endPage":"354","costCenters":[],"links":[{"id":415026,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"13","noUsgsAuthors":false,"publicationDate":"2011-06-03","publicationStatus":"PW","contributors":{"authors":[{"text":"Glen, William","contributorId":303876,"corporation":false,"usgs":false,"family":"Glen","given":"William","email":"","affiliations":[],"preferred":false,"id":868356,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70209664,"text":"70209664 - 1990 - Iron sulfide minerals at Cement oil field, Oklahoma: Implications for magnetic detection of oil fields","interactions":[],"lastModifiedDate":"2020-09-01T20:32:29.101898","indexId":"70209664","displayToPublicDate":"1990-03-01T11:56:42","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1723,"text":"GSA Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Iron sulfide minerals at Cement oil field, Oklahoma: Implications for magnetic detection of oil fields","docAbstract":"Aeromagnetic anomalies at Cement oil field (Anadarko basin, Oklahoma) have been attributed to authigenic magnetite. The following characteristics of the magnetite, however, indicate that it is contamination introduced by drilling: (1) occurrence as sharp angular blades and as spheres, commonly with metallographic textures typical of industrial alloys and with associated steel and wustite (FeO); (2) presence only in well cuttings and absence from core and quarry samples; and (3) lack of association with detrital framework grains or with authigenic carbonate and sulfide minerals.
Ferrimagnetic pyrrhotite occurs in well cuttings, cores, and quarry samples at Cement and is a possible natural source of the magnetic anomalies. Pyrrhotite, which is intergrown with more abundant FeS2 minerals, formed as a result of hydrocarbon seepage. Pyrrhotite is confined to beds above oil and gas reservoirs. These beds, which lack detrital organic matter, contain higher mineral sulfide and lower mineral sulfate sulfur (1.7 and 0.1 wt %, respectively) than do correlative beds off the field (0.2 and 1.1 wt %, respectively). In the field, isotopic values of sulfide S show a systematic decrease upward through the Permian section from positive values (maximum, +12 per mil at ∼610-760 m depth) to negative values (-1 to -11 per mil between 32 and 230 m; -26 to -30 per mil at the surface). Geochemical results, together with time-temperature data derived from burial curves, limit the major sources of the sulfide in the Fe-S minerals to two possibilities. Isotopically heavy sulfide was generated either inorganically at temperatures >∼90 °C in beds beneath Permian beds, or by bacterial sulfate reduction at temperatures <∼60 °C in Permian strata. If the latter, microbial sulfate reduction occurred under sulfate-limited conditions. The isotopically light sulfide occurring in minerals near the present surface is attributed to bacterial reduction of sulfate. Sulfate-reducing bacteria derived metabolic energy from leaking hydrocarbons and associated organic compounds.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1990)102<0368:ISMACO>2.3.CO;2","usgsCitation":"Reynolds, R.L., Fishman, N.S., Wanty, R.B., and Goldhaber, M.B., 1990, Iron sulfide minerals at Cement oil field, Oklahoma: Implications for magnetic detection of oil fields: GSA Bulletin, v. 102, no. 3, p. 368-380, https://doi.org/10.1130/0016-7606(1990)102<0368:ISMACO>2.3.CO;2.","productDescription":"13 p.","startPage":"368","endPage":"380","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":374120,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oklahoma","otherGeospatial":"Cement Oil Field","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -98.525390625,\n 34.447688696497444\n ],\n [\n -96.5478515625,\n 34.447688696497444\n ],\n [\n -96.5478515625,\n 35.88014896488361\n ],\n [\n -98.525390625,\n 35.88014896488361\n ],\n [\n -98.525390625,\n 34.447688696497444\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"102","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Reynolds, Richard L. 0000-0002-4572-2942 rreynolds@usgs.gov","orcid":"https://orcid.org/0000-0002-4572-2942","contributorId":139068,"corporation":false,"usgs":true,"family":"Reynolds","given":"Richard","email":"rreynolds@usgs.gov","middleInitial":"L.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":787437,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fishman, Neil S.","contributorId":106464,"corporation":false,"usgs":true,"family":"Fishman","given":"Neil","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":787438,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wanty, Richard B. 0000-0002-2063-6423 rwanty@usgs.gov","orcid":"https://orcid.org/0000-0002-2063-6423","contributorId":443,"corporation":false,"usgs":true,"family":"Wanty","given":"Richard","email":"rwanty@usgs.gov","middleInitial":"B.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":787439,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Goldhaber, Martin B. 0000-0002-1785-4243 mgold@usgs.gov","orcid":"https://orcid.org/0000-0002-1785-4243","contributorId":1339,"corporation":false,"usgs":true,"family":"Goldhaber","given":"Martin","email":"mgold@usgs.gov","middleInitial":"B.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":787440,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70242737,"text":"70242737 - 1990 - Plane-strain shear dislocations moving steadily in linear elastic diffusive solids","interactions":[],"lastModifiedDate":"2023-04-14T15:51:04.932872","indexId":"70242737","displayToPublicDate":"1990-03-01T10:35:47","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2167,"text":"Journal of Applied Mechanics","active":true,"publicationSubtype":{"id":10}},"title":"Plane-strain shear dislocations moving steadily in linear elastic diffusive solids","docAbstract":"This paper derives the stress and pore pressure fields induced by a plane-strain shear (gliding edge) dislocation moving steadily at a constant speed V in a linear elastic, fluid-infiltrated (Biot) solid. Solutions are obtained for the limiting cases in which the plane containing the moving dislocation (y = 0) is permeable and impermeable to the diffusing species. Although the solutions for the permeable and impermeable planes are required to agree with each other and with the ordinary elastic solution in the limits of V = 0 (corresponding to drained response) and V = ∞ (corresponding to undrained response), the stress and pore pressure fields differ considerably for finite nonzero velocities. For the dislocation on the impermeable plane, the pore pressure is discontinuous on y = 0 and attains values which are equal in magnitude and opposite in sign as y = 0 is approached from above and below. The solution reveals the surprising result that the pore pressure on the impermeable plane is zero everywhere behind the moving dislocation (x < 0). For the dislocation on the permeable plane, the pore pressure is zero on y = 0 and attains its maximum at about (2c/V, 2c/V) where c is the diffusivity, and the origin of the coordinate system coincides with the dislocation. For the impermeable plane, the largest pore pressure change occurs at the origin.
","language":"English","publisher":"American Society of Mechanical Engineers","doi":"10.1115/1.2888320","usgsCitation":"Rudnicki, J., and Roeloffs, E.A., 1990, Plane-strain shear dislocations moving steadily in linear elastic diffusive solids: Journal of Applied Mechanics, v. 57, no. 1, p. 32-39, https://doi.org/10.1115/1.2888320.","productDescription":"8 p.","startPage":"32","endPage":"39","costCenters":[],"links":[{"id":415784,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"1","noUsgsAuthors":false,"publicationDate":"1990-03-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Rudnicki, J.W.","contributorId":70761,"corporation":false,"usgs":true,"family":"Rudnicki","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":869582,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roeloffs, Evelyn A. 0000-0002-4761-0469 evelynr@usgs.gov","orcid":"https://orcid.org/0000-0002-4761-0469","contributorId":2680,"corporation":false,"usgs":true,"family":"Roeloffs","given":"Evelyn","email":"evelynr@usgs.gov","middleInitial":"A.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":869583,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70242735,"text":"70242735 - 1990 - Thermal regime of permafrost in Alaska and predicted global warming","interactions":[],"lastModifiedDate":"2023-04-14T15:32:48.383532","indexId":"70242735","displayToPublicDate":"1990-03-01T10:18:32","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2221,"text":"Journal of Cold Regions Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Thermal regime of permafrost in Alaska and predicted global warming","docAbstract":"The mean surface temperature of permafrost in Alaska has warmed locally as much as 4° C during the last century although some areas show little or no indication of a warming or cooling. There is evidence for a recent cooling, since 1983, south of Prudhoe Bay to the Brooks Range. South of the Yukon River drainage and on the south side of the Seward Peninsula, permafrost temperatures are generally within a few degree's of thawing. There is a general consensus among scientists for a climatic warming of several degrees in surface air temperatures by the middle of the next century. If this warming occurs, there will be widespread thawing of the permafrost south of the Yukon River drainage and on the south side of the Seward Peninsula in Alaska. In general, thawing of warm discontinuous permafrost would also be expected in other areas of the polar regions. This potential thawing of the permafrost could create severe environmental and engineering problems.
","language":"English","publisher":"American Society of Civil Engineers","doi":"10.1061/(ASCE)0887-381X(1990)4:1(38)","usgsCitation":"Osterkamp, T., and Lachenbruch, A., 1990, Thermal regime of permafrost in Alaska and predicted global warming: Journal of Cold Regions Engineering, v. 4, no. 1, p. 38-42, https://doi.org/10.1061/(ASCE)0887-381X(1990)4:1(38).","productDescription":"5 p.","startPage":"38","endPage":"42","costCenters":[],"links":[{"id":415783,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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\"}}]}","volume":"4","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Osterkamp, T.E.","contributorId":68959,"corporation":false,"usgs":true,"family":"Osterkamp","given":"T.E.","email":"","affiliations":[],"preferred":false,"id":869575,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lachenbruch, A.H.","contributorId":76737,"corporation":false,"usgs":true,"family":"Lachenbruch","given":"A.H.","affiliations":[],"preferred":false,"id":869576,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70124266,"text":"70124266 - 1990 - Range and habitat of the Colima Warbler","interactions":[],"lastModifiedDate":"2014-09-11T09:49:19","indexId":"70124266","displayToPublicDate":"1990-03-01T09:19:00","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3783,"text":"The Wilson Bulletin","printIssn":"0043-5643","active":true,"publicationSubtype":{"id":10}},"title":"Range and habitat of the Colima Warbler","docAbstract":"No abstract available.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Wilson Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wilson Ornithological Society","publisherLocation":"Columbus, OH","usgsCitation":"Lanning, D.V., Marshall, J.T., and Shiflett, J.T., 1990, Range and habitat of the Colima Warbler: The Wilson Bulletin, v. 102, no. 1, p. 1-13.","productDescription":"13 p.","startPage":"1","endPage":"13","numberOfPages":"13","costCenters":[],"links":[{"id":293648,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"102","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5412b9b7e4b0239f1986badc","contributors":{"authors":[{"text":"Lanning, Dirk V.","contributorId":85405,"corporation":false,"usgs":true,"family":"Lanning","given":"Dirk","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":500614,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Marshall, Joe T.","contributorId":84162,"corporation":false,"usgs":true,"family":"Marshall","given":"Joe","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":500613,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shiflett, James T.","contributorId":61243,"corporation":false,"usgs":true,"family":"Shiflett","given":"James","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":500612,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70124263,"text":"70124263 - 1990 - Simulation of cotton rat population dynamics and response to rodenticide applications in Florida sugarcane","interactions":[],"lastModifiedDate":"2014-09-11T09:14:22","indexId":"70124263","displayToPublicDate":"1990-03-01T09:12:38","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1458,"text":"Ecological Modelling","active":true,"publicationSubtype":{"id":10}},"title":"Simulation of cotton rat population dynamics and response to rodenticide applications in Florida sugarcane","docAbstract":"Alternative deterministic simulation models were compared to test the management consequences of present uncertainty about the degree of density dependence involved in cotton rat population cycles in southern Florida sugarcane fields. Efficacy of rodenticide applied in different months was explored under six different scenarios of density dependence and independence in two population parameters: fecundity and juvenile survival. Output from the six models differed considerably in the number of rats produced, but was remarkably consistent in the most effective months to apply rodenticide. Since models without density-dependent fecundity were inherently unstable and an inverse relationship between fecundity and population size is apparent in field data, such a population-growth mechanism seems possible in Florida sugarcane fields. The model in which fecundity was density-dependent at all times produced rat densities closest to field data. Output from this model was most sensitive to changes in the amount litter size declines as population size increases. Field tests are necessary to validate the general agreement among the models about the most effective months to apply rodenticide.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Modelling","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier Science","publisherLocation":"Amsterdam","doi":"10.1016/0304-3800(90)90049-M","usgsCitation":"Montague, C., Lefebvre, L.W., Decker, D., and Holler, N.R., 1990, Simulation of cotton rat population dynamics and response to rodenticide applications in Florida sugarcane: Ecological Modelling, v. 50, no. 1-3, p. 177-203, https://doi.org/10.1016/0304-3800(90)90049-M.","productDescription":"27 p.","startPage":"177","endPage":"203","numberOfPages":"27","costCenters":[],"links":[{"id":293645,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":293644,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/0304-3800(90)90049-M"}],"country":"United States","state":"Florida","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -87.6349,24.5211 ], [ -87.6349,31.001 ], [ -80.0311,31.001 ], [ -80.0311,24.5211 ], [ -87.6349,24.5211 ] ] ] } } ] }","volume":"50","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5412b9bde4b0239f1986baff","contributors":{"authors":[{"text":"Montague, Clay L.","contributorId":41351,"corporation":false,"usgs":true,"family":"Montague","given":"Clay L.","affiliations":[],"preferred":false,"id":500606,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lefebvre, Lynn W. 0000-0002-4464-6263 llefebvre@usgs.gov","orcid":"https://orcid.org/0000-0002-4464-6263","contributorId":1614,"corporation":false,"usgs":true,"family":"Lefebvre","given":"Lynn","email":"llefebvre@usgs.gov","middleInitial":"W.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":500604,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Decker, David G.","contributorId":48879,"corporation":false,"usgs":true,"family":"Decker","given":"David G.","affiliations":[],"preferred":false,"id":500607,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Holler, Nicholas R.","contributorId":31316,"corporation":false,"usgs":true,"family":"Holler","given":"Nicholas","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":500605,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70016242,"text":"70016242 - 1990 - Stability analysis of Eulerian-Lagrangian methods for the one-dimensional shallow-water equations","interactions":[],"lastModifiedDate":"2023-02-28T16:55:26.085627","indexId":"70016242","displayToPublicDate":"1990-03-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":840,"text":"Applied Mathematical Modelling","active":true,"publicationSubtype":{"id":10}},"title":"Stability analysis of Eulerian-Lagrangian methods for the one-dimensional shallow-water equations","docAbstract":"In this paper stability and error analyses are discussed for some finite difference methods when applied to the one-dimensional shallow-water equations. Two finite difference formulations, which are based on a combined Eulerian-Lagrangian approach, are discussed. In the first part of this paper the results of numerical analyses for an explicit Eulerian-Lagrangian method (ELM) have shown that the method is unconditionally stable. This method, which is a generalized fixed grid method of characteristics, covers the Courant-Isaacson-Rees method as a special case. Some artificial viscosity is introduced by this scheme. However, because the method is unconditionally stable, the artificial viscosity can be brought under control either by reducing the spatial increment or by increasing the size of time step. The second part of the paper discusses a class of semi-implicit finite difference methods for the one-dimensional shallow-water equations. This method, when the Eulerian-Lagrangian approach is used for the convective terms, is also unconditionally stable and highly accurate for small space increments or large time steps. The semi-implicit methods seem to be more computationally efficient than the explicit ELM; at each time step a single tridiagonal system of linear equations is solved. The combined explicit and implicit ELM is best used in formulating a solution strategy for solving a network of interconnected channels. The explicit ELM is used at channel junctions for each time step. The semi-implicit method is then applied to the interior points in each channel segment. Following this solution strategy, the channel network problem can be reduced to a set of independent one-dimensional open-channel flow problems. Numerical results support properties given by the stability and error analyses.
","language":"English","publisher":"Elsevier","doi":"10.1016/0307-904X(90)90045-7","usgsCitation":"Casulli, V., and Cheng, R.T., 1990, Stability analysis of Eulerian-Lagrangian methods for the one-dimensional shallow-water equations: Applied Mathematical Modelling, v. 14, no. 3, p. 122-131, https://doi.org/10.1016/0307-904X(90)90045-7.","productDescription":"10 p.","startPage":"122","endPage":"131","numberOfPages":"10","costCenters":[],"links":[{"id":489735,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/0307-904x(90)90045-7","text":"Publisher Index Page"},{"id":222951,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9649e4b08c986b31b3fe","contributors":{"authors":[{"text":"Casulli, V.","contributorId":65994,"corporation":false,"usgs":true,"family":"Casulli","given":"V.","affiliations":[],"preferred":false,"id":372945,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cheng, Ralph T.","contributorId":69134,"corporation":false,"usgs":true,"family":"Cheng","given":"Ralph","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":372944,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70185518,"text":"70185518 - 1990 - Effects of benthic flora on arsenic transport","interactions":[],"lastModifiedDate":"2017-03-23T09:22:49","indexId":"70185518","displayToPublicDate":"1990-03-01T00:00:00","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2255,"text":"Journal of Environmental Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Effects of benthic flora on arsenic transport","docAbstract":"Chemical and biological interactions involving arsenic (As) and phosphorus (P) appear to affect significantly As transport and distribution in Whitewood Creek, South Dakota. Data (first‐order uptake rate constants, standing crop, and accumulation factors) that can be used to predict As transport have been determined using algae collected in the creek along a transect from upstream of mine discharge down gradient through a 57‐km impacted reach. Cultures of Achnanthes minutissima (Bacillariophyceae) were isolated from four sites along a longitudinal gradient of dissolved As within the study reach and were maintained at ambient dissolved‐As concentrations. Arsenic sorption‐rate constants for cell surfaces of these isolates were estimated as a function of dissolved arsenate and orthophosphate. All isolates sorbed orthophosphate preferentially over arsenate. Initial sorption of both arsenate and orthophosphate appeared to follow a first‐order equation within media formulations but did not adequately describe other observed effects among formulations or between isolates. Although estimated sorption‐rate constants increased slightly with increased dissolved arsenate concentration, algae isolated from a site with elevated dissolved As had a significantly slower rate of As uptake compared with the same species isolated from an uncontaminated site upstream. Field and laboratory results indicate that the benthic flora represent a significant As pool, which may episodically affect water‐column concentrations.
","language":"English","publisher":"American Society of Civil Engineers","doi":"10.1061/(ASCE)0733-9372(1990)116:2(394)","usgsCitation":"Kuwabara, J.S., Chang, C., and Pasilis, S.P., 1990, Effects of benthic flora on arsenic transport: Journal of Environmental Engineering, v. 116, no. 2, p. 394-409, https://doi.org/10.1061/(ASCE)0733-9372(1990)116:2(394).","productDescription":"16 p.","startPage":"394","endPage":"409","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":338154,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"116","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58d4df08e4b05ec79911d1c2","contributors":{"authors":[{"text":"Kuwabara, James S. 0000-0003-2502-1601 kuwabara@usgs.gov","orcid":"https://orcid.org/0000-0003-2502-1601","contributorId":3374,"corporation":false,"usgs":true,"family":"Kuwabara","given":"James","email":"kuwabara@usgs.gov","middleInitial":"S.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":685853,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chang, Cecily C.Y.","contributorId":62668,"corporation":false,"usgs":true,"family":"Chang","given":"Cecily C.Y.","affiliations":[],"preferred":false,"id":685854,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pasilis, Sofie P.","contributorId":189724,"corporation":false,"usgs":false,"family":"Pasilis","given":"Sofie","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":685855,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70208308,"text":"70208308 - 1990 - Diagenesis and interstitial-water chemistry at the Peruvian continental margin; major constituents and strontium isotopes","interactions":[],"lastModifiedDate":"2020-02-03T14:20:41","indexId":"70208308","displayToPublicDate":"1990-02-03T14:12:29","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5905,"text":"Proceedings of the Ocean Drilling Program: Scientific Results","active":true,"publicationSubtype":{"id":10}},"title":"Diagenesis and interstitial-water chemistry at the Peruvian continental margin; major constituents and strontium isotopes","docAbstract":"Two distinct hydrogeochemical regimes currently dominate the Peruvian continental margin. One, in shallower water (150-450 m) shelf to upper-slope regions, is characterized by interstitial waters with strong positive chloride gradients with depth. The maximum measured value of 1043 mM chloride at Site 680 at ITS corresponds to a degree of seawater evaporation of ~2 times. Major ion chemistry and strontioum isotopic composition of the interstitial waters suggest that a subsurface brine that has a marine origin and is of pre-early Miocene \"age,\" profoundly influences the chemistry and diagenesis of this shelf environment. Site 684 at ~9°S must be closest to the source of this brine, which becomes diluted with seawater and/or interstitial water as it flows southward toward Site 686 at ~13°S (and probably beyond) at a rate of approximately 3 to 4 cm/yr, since early Miocene time.
The other regime, in deep water (3000-5000 m) middle to lower-slope regions, is characterized by interstitial waters with steep negative and nonsteady-state chloride gradients with depth. The minimum measured value of 454 mM chloride, at Site 683 at ITS, corresponds to —20% dilution of seawater chloride The most probably sources of these low-chloride fluids are gas hydrate dissociation and mineral (particularly clay) dehydration reactions. Fluid advection is consistent with (1) the extent of dilution shown in the chloride profiles, (2) the striking nonsteady-state depth profiles of chlorides at Sites 683 and 688 and of 87Sr/86Sr ratios at Site 685, and (3) the temperatures resulting from an average geothermal gradient of 50°C/km and required for clay mineral dehydration reactions. Strontium isotope data reveal two separate fluid regimes in this slope region: a more northerly one at Sites 683 and 685 that is influenced by fluids with a radiogenic continental strontium signature, and a southerly one at Sites 682 and 688 that is influenced by fluids with a nonradiogenic oceanic signatures. Stratigraphically controlled fluid migration seems to prevail in this margin.
Because of its special tectonic setting, Site 679 at ITS is geochemically distinct. The interstitial waters are characterized by seawater chloride concentrations to —200 mbsf and deeper by a significantly lower chloride concentration of about two-thirds of the value in seawater, suggesting mixing with a meteoric water source. Regardless of the hydrogeochemical regime, the chemistry and isotopic compositions of the interstitial waters at all sites are markedly modified by diagenesis, particularly by calcite and dolomite crystallization.
","language":"English","publisher":"Texas A&M","doi":"10.2973/odp.proc.sr.112.144.1990","usgsCitation":"Kastner, M., Elderfield, H., Martin, J., Suess, E., Kvenvolden, K.A., and Garrison, R.E., 1990, Diagenesis and interstitial-water chemistry at the Peruvian continental margin; major constituents and strontium isotopes: Proceedings of the Ocean Drilling Program: Scientific Results, v. 112, p. 413-440, https://doi.org/10.2973/odp.proc.sr.112.144.1990.","productDescription":"28 p.","startPage":"413","endPage":"440","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":488860,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2973/odp.proc.sr.112.144.1990","text":"Publisher Index Page"},{"id":371968,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Peru","otherGeospatial":"Peruvian Continental Margin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -79.7607421875,\n -14.093957177836224\n ],\n [\n -75.849609375,\n -14.093957177836224\n ],\n [\n -75.849609375,\n -7.841615185204699\n ],\n [\n -79.7607421875,\n -7.841615185204699\n ],\n [\n -79.7607421875,\n -14.093957177836224\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"112","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Kastner, Miriam","contributorId":24187,"corporation":false,"usgs":true,"family":"Kastner","given":"Miriam","email":"","affiliations":[],"preferred":false,"id":781342,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elderfield, Henry","contributorId":222137,"corporation":false,"usgs":false,"family":"Elderfield","given":"Henry","email":"","affiliations":[],"preferred":false,"id":781343,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Martin, J.B.","contributorId":32923,"corporation":false,"usgs":true,"family":"Martin","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":781344,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Suess, Erwin","contributorId":138538,"corporation":false,"usgs":false,"family":"Suess","given":"Erwin","email":"","affiliations":[],"preferred":false,"id":781345,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kvenvolden, Keith A. kkvenvolden@usgs.gov","contributorId":3384,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"Keith","email":"kkvenvolden@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":781346,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Garrison, Robert E.","contributorId":21940,"corporation":false,"usgs":true,"family":"Garrison","given":"Robert","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":781347,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70208307,"text":"70208307 - 1990 - Hydrocarbons in sediment of the Weddell Sea, Antarctica","interactions":[],"lastModifiedDate":"2020-02-03T14:10:42","indexId":"70208307","displayToPublicDate":"1990-02-03T13:42:16","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5905,"text":"Proceedings of the Ocean Drilling Program: Scientific Results","active":true,"publicationSubtype":{"id":10}},"title":"Hydrocarbons in sediment of the Weddell Sea, Antarctica","docAbstract":"Heavy hydrocarbons (about C15+) are ubiquitous but minor components in sediment from three sites (692, 693, and 694) drilled during Ocean Drilling Program (ODP) Leg 113. This preliminary report is the first to describe the distribution of some of these hydrocarbons in sediment of the Weddell Sea. Samples from Sites 692 and 693, located on a mid-slope bench along the margin of Queen Maud Land, span a time interval from Early Cretaceous to Pleistocene. In samples from the Tertiary portion of the record, having an average organic-carbon content of about 0.2%, n-alkanes are common and are characterized by populations that indicate both marine and terrigenous sources. In contrast, samples from the Cretaceous portion of the record, having an average organic carbon content of about 4%, contain mixtures of hydrocarbons in which n-alkanes are secondary in abundance to the isoprenoid hydrocarbons, pristane and phytane. Diasterenes, sterenes, and hopenes are present in anomalously high concentrations and indicate immaturity. The Cretaceous hydrocarbons appear to be mainly primary, whereas the Tertiary hydrocarbons contain compounds which indicate that the sediment, along with its organic content, has been recycled. Samples from Site 694, located in the Weddell Sea on the abyssal plain, range in age from late Miocene to early Pliocene.
","language":"English","publisher":"Texas A&M","doi":"10.2973/odp.proc.sr.113.163.1990","usgsCitation":"Kvenvolden, K.A., Hostettler, F.D., and Frank, T., 1990, Hydrocarbons in sediment of the Weddell Sea, Antarctica: Proceedings of the Ocean Drilling Program: Scientific Results, v. 113, p. 199-208, https://doi.org/10.2973/odp.proc.sr.113.163.1990.","productDescription":"10 p.","startPage":"199","endPage":"208","costCenters":[],"links":[{"id":488889,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"http://doi.org/10.2973/odp.proc.sr.113.163.1990","text":"Publisher Index Page"},{"id":371967,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Antarctica 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Keith A. kkvenvolden@usgs.gov","contributorId":3384,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"Keith","email":"kkvenvolden@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":781339,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hostettler, Frances D. fdhostet@usgs.gov","contributorId":3383,"corporation":false,"usgs":true,"family":"Hostettler","given":"Frances","email":"fdhostet@usgs.gov","middleInitial":"D.","affiliations":[],"preferred":true,"id":781340,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Frank, Tamara","contributorId":222132,"corporation":false,"usgs":true,"family":"Frank","given":"Tamara","email":"","affiliations":[],"preferred":false,"id":781341,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70208306,"text":"70208306 - 1990 - Hydrocarbon gases in Tertiary and Quaternary sediments offshore Peru; results and comparisons","interactions":[],"lastModifiedDate":"2020-02-03T13:40:43","indexId":"70208306","displayToPublicDate":"1990-02-03T13:25:34","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5905,"text":"Proceedings of the Ocean Drilling Program: Scientific Results","active":true,"publicationSubtype":{"id":10}},"title":"Hydrocarbon gases in Tertiary and Quaternary sediments offshore Peru; results and comparisons","docAbstract":"Hydrocarbon gases (methane, ethane, propane, isobutane, «-butane, ethene, and propene) are present in Tertiary and Quaternary shelf, upper-slope, and lower-slope deposits of the Peruvian continental margin. Methane dominates the composition of the hydrocarbon gas at all 10 sites examined during Ocean Drilling Program (ODP) Leg 112. Generation of methane is regulated by the amount of sulfate in pore water. Wherever sulfate concentrations approach or equal zero, methane concentrations increase rapidly, reaching values near 100,000 /tL/L of wet sediment at eight of the 10 sites. Methane at all 10 sites results from methanogenesis, which is inhibited where sulfate is present and microbial reduction of sulfate occurs. Hydrocarbon gases heavier than methane also are present, but at much lower concentrations than methane. These hydrocarbons are thought to result from early thermal and microbial diagenesis, based on relative gas compositions and trends of concentrations with depth. With few exceptions, the results obtained in the shipboard and shore-based laboratories are comparable for methane and ethane in sediments of Leg 112. Reanalyses of canned sediments from ODP Leg 104 and from Deep Sea Drilling Project (DSDP) Legs 76 and 84 show that gas samples can be stored for as long as 8 yr, but the amounts of individual hydrocarbon gases retained vary. Nevertheless, the trends of the data sets with depth are similar for fresh and stored samples.
","language":"English","publisher":"Texas A&M","doi":"10.2973/odp.proc.sr.112.146.1990","usgsCitation":"Kvenvolden, K.A., Frank, T., and Golan-Bac, M., 1990, Hydrocarbon gases in Tertiary and Quaternary sediments offshore Peru; results and comparisons: Proceedings of the Ocean Drilling Program: Scientific Results, v. 112, p. 505-515, https://doi.org/10.2973/odp.proc.sr.112.146.1990.","productDescription":"11 p.","startPage":"505","endPage":"515","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":488890,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"http://doi.org/10.2973/odp.proc.sr.112.146.1990","text":"Publisher Index Page"},{"id":371965,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Peru","otherGeospatial":"ODP Leg 112","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -78.85986328125,\n -7.623886853120036\n ],\n [\n -81.4306640625,\n -8.320212289522944\n ],\n [\n -79.716796875,\n -14.902321826141796\n ],\n [\n -75.52001953125,\n -12.597454504832005\n ],\n [\n -78.2666015625,\n -7.318881730366743\n ],\n [\n -78.85986328125,\n -7.623886853120036\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"112","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Kvenvolden, Keith A. kkvenvolden@usgs.gov","contributorId":3384,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"Keith","email":"kkvenvolden@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":781336,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Frank, Tamara","contributorId":222132,"corporation":false,"usgs":true,"family":"Frank","given":"Tamara","email":"","affiliations":[],"preferred":false,"id":781337,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Golan-Bac, M.","contributorId":80828,"corporation":false,"usgs":true,"family":"Golan-Bac","given":"M.","affiliations":[],"preferred":false,"id":781338,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70208303,"text":"70208303 - 1990 - Hydrothermally derived petroleum: examples from Guaymas Basin, Gulf of California, and Escanaba Trough, northeast Pacific Ocean","interactions":[],"lastModifiedDate":"2020-02-03T13:21:27","indexId":"70208303","displayToPublicDate":"1990-02-03T12:59:18","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":605,"text":"AAPG Bulletin","printIssn":"0149-1423","active":true,"publicationSubtype":{"id":10}},"title":"Hydrothermally derived petroleum: examples from Guaymas Basin, Gulf of California, and Escanaba Trough, northeast Pacific Ocean","docAbstract":"In the Guaymas Basin, a spreading axis in the Gulf of California, petroleum having a wide range of compositions forms by hydrothermal alteration of organic matter in Quaternary sediment composed mainly of marine diatomaceous ooze and muddy turbidites. In Escanaba Trough, at the southern end of the Gorda Ridge spreading axis offshore northern California, petroleum is formed by hydrothermal processes acting on mainly terrigenous organic material in Quaternary turbiditic river-derived sediment. Comparisons of the distributions of hydrocarbons - n-alkanes, isoprenoids, terpanes, steranes, and aromatics - show that chemical differences among four petroleum samples are such that two samples from Guaymas Basin can be distinguished from two samples from Escanaba Trough. Distinguishing characteristics resulting from differences in sources include n-alkane distributions and certain sterane ratios; distinguishing characteristics resulting from differences in thermal histories of the organic matter include hopane and sterane epimer ratios and various distributions of polycyclic aromatic hydrocarbons. These oils differ from conventionally derived petroleum in that they are admixtures of products generated over a wide range of thermal regimes, and their generation, expulsion, and migration occurred simultaneously over an instantaneous geological time period. The potential economic significance of hydrothermal derived petroleum is uncertain, but the fact that petroleum can form at active oceanic spreading axes adds a new facet to understanding the processes of petroleum generation, expulsion, and migration.
","language":"English","publisher":"AAPG","doi":"10.1306/0C9B22A9-1710-11D7-8645000102C1865D","usgsCitation":"Kvenvolden, K.A., and Simoneit, B., 1990, Hydrothermally derived petroleum: examples from Guaymas Basin, Gulf of California, and Escanaba Trough, northeast Pacific Ocean: AAPG Bulletin, v. 74, no. 3, p. 223-237, https://doi.org/10.1306/0C9B22A9-1710-11D7-8645000102C1865D.","productDescription":"15","startPage":"223","endPage":"237","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":371964,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Canada, Mexico, United States ","otherGeospatial":" Escanaba Trough and Guaymas Basin in the system of spreading axes and transform faults that extends along the western coast of North America","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -112.1484375,\n 20.632784250388028\n ],\n [\n -105.908203125,\n 23.563987128451217\n ],\n [\n -121.28906250000001,\n 41.178653972331674\n ],\n [\n -121.37695312499999,\n 48.80686346108517\n ],\n [\n -127.88085937499999,\n 51.6180165487737\n ],\n [\n -130.517578125,\n 51.069016659603896\n ],\n [\n -120.76171875,\n 31.952162238024975\n ],\n [\n -112.1484375,\n 20.632784250388028\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"74","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Kvenvolden, Keith A. kkvenvolden@usgs.gov","contributorId":3384,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"Keith","email":"kkvenvolden@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":781328,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Simoneit, B.R.","contributorId":30239,"corporation":false,"usgs":true,"family":"Simoneit","given":"B.R.","affiliations":[],"preferred":false,"id":781329,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70208300,"text":"70208300 - 1990 - Gas hydrates of the Peruvian outer continental margin","interactions":[],"lastModifiedDate":"2020-02-03T12:58:38","indexId":"70208300","displayToPublicDate":"1990-02-03T12:34:45","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5905,"text":"Proceedings of the Ocean Drilling Program: Scientific Results","active":true,"publicationSubtype":{"id":10}},"title":"Gas hydrates of the Peruvian outer continental margin","docAbstract":"Gas hydrates were recovered during coring by Ocean Drilling Program (ODP) Leg 112 at Sites 685 and 688 on the Peruvian outer continental margin at latitudes of 9° and 11.5°S, where water depths are 5070 and 3820 m, respectively. In addition, nearby Sites 682 and 683 yielded compelling evidence that gas hydrates are present, but gas hydrates were not directly observed there. Anomalous acoustic reflectors, known as bottom-simulating reflectors (BSRs), on marine seismic profiles from the region also provided inferential evidence that gas hydrates are present. Geothermal gradients of about 43 and 49°C/km were calculated on the basis of relations between depths to BSRs, bottom-water temperatures, and the pressure-temperature stability field of gas hydrates. Geochemical studies revealed that methane concentrations increase rapidly with depth after pore-water sulfate concentrations have been depleted. The relationship between methane and sulfate suggests that microbial processes account for the generation of methane, and the relationship between the carbon isotopic composition of methane and dissolved carbon dioxide supports this suggestion. We believe that decreasing chlorinity in pore water from squeezed sediment at the four sites results mainly from the decomposition of gas hydrates and is a dilution artifact observed as a result of the squeezing procedure. Maximum chlorinity values at or near the surface result from excess salt that comes from the formation of gas hydrates composed of freshwater. Record alkalinity attests to the intensity of diagenetic processes and has significant effects on salinity profiles at these sites. Gas hydrates were recovered at 99 and 166 meters below the seafloor (mbsf) at Site 685, and at 141 mbsf at Site 688 in Pleistocene diatomaceous mud. Methane constitutes more than 99% of the hydrocarbon gas mixture in the gas hydrates. The volumetric ratio of methane to water in the sample from Site 685 is 100, indicating that the sampled gas hydrate is either undersaturated with respect to methane or had partially decomposed during core recovery or both. The discovery of gas hydrates in lower slope deposits of the Peruvian outer continental margin extends our knowledge of gas-hydrate formation and occurrence in the Circum-Pacific region.
","language":"English","publisher":"Texas A&M ","doi":"10.2973/odp.proc.sr.112.147.1990","usgsCitation":"Kvenvolden, K.A., and Kastner, M., 1990, Gas hydrates of the Peruvian outer continental margin: Proceedings of the Ocean Drilling Program: Scientific Results, v. 112, p. 517-526, https://doi.org/10.2973/odp.proc.sr.112.147.1990.","productDescription":"10 p.","startPage":"517","endPage":"526","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":488859,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2973/odp.proc.sr.112.147.1990","text":"Publisher Index Page"},{"id":371961,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Peru","otherGeospatial":"ODP Leg 112","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -80.39794921875,\n -13.325484885597936\n ],\n [\n -76.35498046875,\n -13.325484885597936\n ],\n [\n -76.35498046875,\n -7.819847426192575\n ],\n [\n -80.39794921875,\n -7.819847426192575\n ],\n [\n -80.39794921875,\n -13.325484885597936\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"112","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Kvenvolden, Keith A. kkvenvolden@usgs.gov","contributorId":3384,"corporation":false,"usgs":true,"family":"Kvenvolden","given":"Keith","email":"kkvenvolden@usgs.gov","middleInitial":"A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":781320,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kastner, Miriam","contributorId":24187,"corporation":false,"usgs":true,"family":"Kastner","given":"Miriam","email":"","affiliations":[],"preferred":false,"id":781321,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70242785,"text":"70242785 - 1990 - Precursors to eruption","interactions":[],"lastModifiedDate":"2023-04-17T21:58:22.981172","indexId":"70242785","displayToPublicDate":"1990-02-01T16:54:40","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"Precursors to eruption","docAbstract":"No abstract available.
","language":"English","publisher":"Springer","doi":"10.1038/343590a0","usgsCitation":"Thatcher, W.R., 1990, Precursors to eruption: Nature, v. 343, p. 590-591, https://doi.org/10.1038/343590a0.","productDescription":"2 p.","startPage":"590","endPage":"591","costCenters":[],"links":[{"id":415900,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"343","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Thatcher, Wayne R. 0000-0001-6324-545X thatcher@usgs.gov","orcid":"https://orcid.org/0000-0001-6324-545X","contributorId":2599,"corporation":false,"usgs":true,"family":"Thatcher","given":"Wayne","email":"thatcher@usgs.gov","middleInitial":"R.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":869771,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70242107,"text":"70242107 - 1990 - Geochronologic studies in central New England II: Post-Acadian hinged and differential uplift: Comment","interactions":[],"lastModifiedDate":"2023-04-06T18:36:57.835523","indexId":"70242107","displayToPublicDate":"1990-02-01T13:27:02","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Geochronologic studies in central New England II: Post-Acadian hinged and differential uplift: Comment","docAbstract":"No abstract available.
","language":"English","publisher":"Geological Society of America","usgsCitation":"Haugerud, R.A., 1990, Geochronologic studies in central New England II: Post-Acadian hinged and differential uplift: Comment: Geology, v. 18, no. 2, p. 183-184.","productDescription":"2 p.","startPage":"183","endPage":"184","costCenters":[],"links":[{"id":415366,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":415363,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://doi.org/10.1130/0091-7613(1990)018%3C0183:CAROGS%3E2.3.CO;2"}],"country":"United States","state":"Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont","otherGeospatial":"New 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\"}}]}","volume":"18","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Haugerud, Ralph A. 0000-0001-7302-4351 rhaugerud@usgs.gov","orcid":"https://orcid.org/0000-0001-7302-4351","contributorId":2691,"corporation":false,"usgs":true,"family":"Haugerud","given":"Ralph","email":"rhaugerud@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":868912,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70200575,"text":"70200575 - 1990 - Calc-alkaline, shoshonitic, and primitive tholeiitic lavas from monogenetic volcanoes near Crater Lake, Oregon","interactions":[],"lastModifiedDate":"2018-10-24T12:58:17","indexId":"70200575","displayToPublicDate":"1990-02-01T12:57:38","publicationYear":"1990","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2420,"text":"Journal of Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Calc-alkaline, shoshonitic, and primitive tholeiitic lavas from monogenetic volcanoes near Crater Lake, Oregon","docAbstract":"Quaternary monogenetic volcanism in the High Cascades of Oregon is manifested by cinder cones, lava fields, and small shields. Near Crater Lake caldera, monogenetic lava compositions include: low-K (as low as 0·09% K2O) high-alumina olivine tholeiite (HAOT); medium-K. calc-alkaline basalt, basaltic andesite, and andesite; and shoshonitic basaltic andesite (2·1% K2O, 1750 ppm Sr at 54% SiO2). Tholeiites have MORB-like trace element abundances except for elevated Sr, Ba, and Th and low high field strength elements (HFSE), and they represent near-primary liquids. They are similar to HAOTs from the Cascades and adjacent Basin and Range, and to many primitive basalts from intraoceanic arcs. Calc-alkaline lavas show a well-developed arc signature of high large-ion lithophile elements (LILE) and low HFSE. Their Zr and Hf concentrations are at least partly decoupled from those of Nb and Ta; HREE are low relative to HAOT. Incompatible element abundances and ratios vary widely among basaltic andesites. Some calc-alkaline lavas vented near Mount Mazama contain abundant gabbroic microxcnoliths, and are basaltic andesitic magmas contaminated with olivine gabbro.
A calc-alkaline basalt and a few basaltic andesites have MgO and compatible trace element contents that suggest only minor fractionation. There appears to be a compositional continuum between primitive tholeiitic and calc-alkaline lavas. Compositional variation within suites of comagmatic primitive lavas, both tholeiitic and calc-alkaline, mainly results from different degrees of partial melting. Sources of calc-alkaline primary magmas were enriched in LILE and LREE by a subduction component and contained residual garnet, whereas sources of HAOTs had lower LILE and LREE concentrations and contained residual clinopyroxene. High and variable LILE and LREE contents of calc-alkaline lavas reflect variations in fluid-transported subduction component added to the mantle wedge, degree of partial melting, and possibly also interaction with rocks or partial melts in the lower crust.
Andesites were derived from calc-alkaline basaltic andesites by fractionation of plagioclase+augite+magnetite+apatite ± orthopyroxene or olivine, commonly accompanied by assimilation. Many andesites are mixtures of andesitic or dacitic magma and a basaltic or basaltic andesitic component, or are contaminated with gabbroic material. Mingled basalt, andesite, and dacite of Williams Crater formed by multi-component, multi-stage mixing of basaltic andesitic magma, gabbro, and dacitic magma. The wide range of compositions vented from monogenetic volcanoes near Crater Lake is a result of the thick crust coupled with mild tectonic extension superimposed on a subduction-related magmatic arc.
","language":"English","publisher":"Oxford Academic","doi":"10.1093/petrology/31.1.135","usgsCitation":"Bacon, C.R., 1990, Calc-alkaline, shoshonitic, and primitive tholeiitic lavas from monogenetic volcanoes near Crater Lake, Oregon: Journal of Petrology, v. 31, no. 1, p. 135-166, https://doi.org/10.1093/petrology/31.1.135.","productDescription":"32 p.","startPage":"135","endPage":"166","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":358749,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon","volume":"31","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5c112800e4b034bf6a8200bd","contributors":{"authors":[{"text":"Bacon, Charles R. 0000-0002-2165-5618 cbacon@usgs.gov","orcid":"https://orcid.org/0000-0002-2165-5618","contributorId":2909,"corporation":false,"usgs":true,"family":"Bacon","given":"Charles","email":"cbacon@usgs.gov","middleInitial":"R.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":749633,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}