The minor-element composition of concentric layers within a single ferromanganese nodule from the eastern North Pacific exhibits strong correlations with Fe and Mn contents but appears to be independent of pronounced mineralogic variations. On the basis of these correlations, the elemental composition of individual layers apparently is controlled by the relative contribution of two sources: seawater, and interstitial water of associated sediment. In contrast, the mineralogy of the nodule, consisting of birnessite in the outer few layers and todorokite in the inner layers, is considered to be a function of nodule diagenesis.
","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(81)90143-2","usgsCitation":"Piper, D., and Williamson, M., 1981, Mineralogy and composition of concentric layers within a manganese nodule from the North Pacific Ocean: Marine Geology, v. 40, no. 3-4, p. 255-268, https://doi.org/10.1016/0025-3227(81)90143-2.","productDescription":"14 p.","startPage":"255","endPage":"268","costCenters":[],"links":[{"id":222641,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"40","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5ab2e4b0c8380cd6f06f","contributors":{"authors":[{"text":"Piper, D.Z.","contributorId":34154,"corporation":false,"usgs":false,"family":"Piper","given":"D.Z.","email":"","affiliations":[],"preferred":false,"id":362879,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Williamson, M.E.","contributorId":53954,"corporation":false,"usgs":true,"family":"Williamson","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":362880,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":5221696,"text":"5221696 - 1981 - Species differences in hematological values of captive cranes, geese, raptors, and quail","interactions":[],"lastModifiedDate":"2024-10-30T16:17:33.997354","indexId":"5221696","displayToPublicDate":"1981-04-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Species differences in hematological values of captive cranes, geese, raptors, and quail","docAbstract":"Hematological and serum chemical constituents of blood were determined for 12 species, including 7 endangered species, of cranes, geese, raptors, and quail in captivity at the Patuxent Wildlife Research Center. Means, standard deviations, analysis of variance by species and sex, and a series of multiple comparisons of means were derived for each parameter investigated. Differences among some species means were observed in all blood parameters except gamma-glutamyl transpeptidase. Although sampled during the reproductively quiescent period, an influence of sex was noted in red blood cell count, hemoglobin, albumin, glucose, cholesterol, serum glutamic oxaloacetic transaminase, Ca, and P. Our data and values reported in literature indicate that most hematological parameters vary among species and, in some cases, according to methods used to determine them. Therefore, baseline data for captive and wild birds should be established by using standard methods, and should be made available to aid others for use in assessing physiological and pathological conditions of these species.","language":"English","publisher":"Wiley","doi":"10.2307/3807928","usgsCitation":"Gee, G.F., Carpenter, J.W., and Hensler, G.L., 1981, Species differences in hematological values of captive cranes, geese, raptors, and quail: Journal of Wildlife Management, v. 45, no. 2, p. 463-483, https://doi.org/10.2307/3807928.","productDescription":"21 p.","startPage":"463","endPage":"483","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":199168,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ac9e4b07f02db67c52b","contributors":{"authors":[{"text":"Gee, George F.","contributorId":113443,"corporation":false,"usgs":true,"family":"Gee","given":"George","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":334473,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carpenter, James W.","contributorId":91518,"corporation":false,"usgs":true,"family":"Carpenter","given":"James","email":"","middleInitial":"W.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":334474,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hensler, Gary L.","contributorId":23111,"corporation":false,"usgs":true,"family":"Hensler","given":"Gary","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":334472,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":5221700,"text":"5221700 - 1981 - Weather conditions associated with beginning of northward migration departures of snow geese","interactions":[],"lastModifiedDate":"2024-10-30T16:07:19.562603","indexId":"5221700","displayToPublicDate":"1981-04-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Weather conditions associated with beginning of northward migration departures of snow geese","docAbstract":"No abstract available.
","language":"English","publisher":"Wiley","doi":"10.2307/3807937","usgsCitation":"Flickinger, E.L., 1981, Weather conditions associated with beginning of northward migration departures of snow geese: Journal of Wildlife Management, v. 45, no. 2, p. 516-520, https://doi.org/10.2307/3807937.","productDescription":"5 p.","startPage":"516","endPage":"520","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":198824,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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\"}}]}","volume":"45","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49e2e4b07f02db5e4af9","contributors":{"authors":[{"text":"Flickinger, Edward L.","contributorId":48907,"corporation":false,"usgs":true,"family":"Flickinger","given":"Edward","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":334480,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":5221725,"text":"5221725 - 1981 - Suspected Great Blue Heron population decline after a severe winter in the Columbia Basin","interactions":[],"lastModifiedDate":"2024-10-09T16:20:50.098274","indexId":"5221725","displayToPublicDate":"1981-04-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2793,"text":"Murrelet","active":true,"publicationSubtype":{"id":10}},"title":"Suspected Great Blue Heron population decline after a severe winter in the Columbia Basin","docAbstract":"The wintering range of the Great Blue Heron (Ardea herodias) extends further north than does that of any other member of the Ciconiiformes in North America. The northern limits of its range extend along the Pacific coast into southeastern Alaska, into Massachusetts on the Atlantic coast, and inland into southern Montana (Palmer 1962). In the northern part of its range, severe winter weather may persist for weeks or months. Little information is available regarding either the response of individual Great Blue Herons to severe winters or the effects of these conditions on populations. In this paper, we report our observations on a small heron population in Oregon and Washington that was exposed to a severe winter.
","language":"English","publisher":"Society for Northwestern Vertebrate Biology","doi":"10.2307/3534443","usgsCitation":"Blus, L.J., and Henny, C.J., 1981, Suspected Great Blue Heron population decline after a severe winter in the Columbia Basin: Murrelet, v. 62, no. 1, p. 16-18, https://doi.org/10.2307/3534443.","productDescription":"3 p.","startPage":"16","endPage":"18","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":199166,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":18525,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://www.jstor.org/stable/3534443","linkFileType":{"id":5,"text":"html"}}],"country":"United States","state":"Oregon, Washington","otherGeospatial":"Columbia 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\"}}]}","volume":"62","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ae0e4b07f02db688049","contributors":{"authors":[{"text":"Blus, Lawrence J.","contributorId":35199,"corporation":false,"usgs":true,"family":"Blus","given":"Lawrence","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":334535,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Henny, Charles J.","contributorId":12578,"corporation":false,"usgs":true,"family":"Henny","given":"Charles","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":334534,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":5221659,"text":"5221659 - 1981 - Radio transmitters for mourning doves: A comparison of attachment techniques","interactions":[],"lastModifiedDate":"2024-10-30T16:27:02.63423","indexId":"5221659","displayToPublicDate":"1981-04-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Radio transmitters for mourning doves: A comparison of attachment techniques","docAbstract":"No abstract available.
","language":"English","publisher":"Wiley","doi":"10.2307/3807939","usgsCitation":"Perry, M., Haas, G., and Carpenter, J.W., 1981, Radio transmitters for mourning doves: A comparison of attachment techniques: Journal of Wildlife Management, v. 45, no. 2, p. 524-527, https://doi.org/10.2307/3807939.","productDescription":"4 p.","startPage":"524","endPage":"527","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":199231,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"45","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a81e4b07f02db649de4","contributors":{"authors":[{"text":"Perry, Matthew 0000-0001-6452-9534 mperry@usgs.gov","orcid":"https://orcid.org/0000-0001-6452-9534","contributorId":179173,"corporation":false,"usgs":true,"family":"Perry","given":"Matthew","email":"mperry@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":334377,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haas, G.H.","contributorId":78045,"corporation":false,"usgs":true,"family":"Haas","given":"G.H.","email":"","affiliations":[],"preferred":false,"id":334378,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carpenter, James W.","contributorId":91518,"corporation":false,"usgs":true,"family":"Carpenter","given":"James","email":"","middleInitial":"W.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":334379,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1003170,"text":"1003170 - 1981 - Polychlorinated biphenyl (Aroclor (R) 1254) residues in rainbow trout: Effects on sensitivity to nine fishery chemicals","interactions":[],"lastModifiedDate":"2025-04-01T16:21:00.452214","indexId":"1003170","displayToPublicDate":"1981-04-01T00:00:00","publicationYear":"1981","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":"Polychlorinated biphenyl (Aroclor (R) 1254) residues in rainbow trout: Effects on sensitivity to nine fishery chemicals","docAbstract":"The influence of background polychlorinated biphenyl (PCB) residues in rainbow trout (Salmo gairdneri) on the susceptibility of the fish to nine chemicals routinely or occasionally used in fishery operations was evaluated. Rainbow trout fry were divided into three groups: one was exposed to 0.01 ppb and another to 0.1 ppb of the PCB Aroclor (R) 1254; the third (control) group was unexposed. After 30 days of exposure, whole body residues were 0.28 and 2.31 ppm for fish exposed to 0.01 and 0.1 ppb, respectively; control fish had residue concentrations of 0.04 ppm. Acute toxicity tests showed that both groups of exposed fish were more sensitive to rotenone and 2,4-D. Exposure did not significantly affect sensitivity to 2-[digeranylamino]-ethanol (GD-174), 3-trifluoromethyl-4-nitrophenol (TFM), nifurpirinol (Furanace), tricaine methanesulfonate (MS-222), or copper sulfate. Fishery managers should be aware that sensitivity of fish to control chemicals may be altered by the presence of contaminants in the water or residues of contaminants in the fish.
","language":"English","publisher":"Oxford Academic","doi":"10.1577/1548-8659(1981)1<200:PBARRI>2.0.CO;2","usgsCitation":"Bills, T., Marking, L.L., and Mauck, W., 1981, Polychlorinated biphenyl (Aroclor (R) 1254) residues in rainbow trout: Effects on sensitivity to nine fishery chemicals: North American Journal of Fisheries Management, v. 1, no. 2, p. 200-203, https://doi.org/10.1577/1548-8659(1981)1<200:PBARRI>2.0.CO;2.","productDescription":"4 p.","startPage":"200","endPage":"203","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":134420,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad7e4b07f02db6843de","contributors":{"authors":[{"text":"Bills, T.D.","contributorId":6393,"corporation":false,"usgs":true,"family":"Bills","given":"T.D.","email":"","affiliations":[],"preferred":false,"id":312861,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Marking, L. L.","contributorId":90661,"corporation":false,"usgs":true,"family":"Marking","given":"L.","middleInitial":"L.","affiliations":[],"preferred":false,"id":312863,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mauck, W.L.","contributorId":36100,"corporation":false,"usgs":true,"family":"Mauck","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":312862,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70012157,"text":"70012157 - 1981 - Exploration decisions and firms in the mineral industries","interactions":[],"lastModifiedDate":"2023-10-17T15:21:38.682037","indexId":"70012157","displayToPublicDate":"1981-04-01T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1508,"text":"Energy Economics","active":true,"publicationSubtype":{"id":10}},"title":"Exploration decisions and firms in the mineral industries","docAbstract":"The purpose of this paper is to demonstrate how physical characteristics of deposits and results of past exploration enter future exploration decisions. A proposed decision model is presented that is consistent with a set of primitive probabilistic assumptions associated with deposit size distributions and discoverability. Analysis of optimal field exploration strategy showed the likely firm responses to alternative exploration taxes and effects on the distribution of future discoveries. Examination of the probabilistic elements of the decision model indicates that changes in firm expectations associated with the distribution of deposits cannot be totally offset by changes in economic variables.
","language":"English","publisher":"Elsevier","doi":"10.1016/0140-9883(81)90015-3","usgsCitation":"Attanasi, E., 1981, Exploration decisions and firms in the mineral industries: Energy Economics, v. 3, no. 2, p. 105-112, https://doi.org/10.1016/0140-9883(81)90015-3.","productDescription":"8 p.","startPage":"105","endPage":"112","numberOfPages":"8","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":222642,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e0be4b0c8380cd532a0","contributors":{"authors":[{"text":"Attanasi, Emil 0000-0001-6845-7160 attanasi@usgs.gov","orcid":"https://orcid.org/0000-0001-6845-7160","contributorId":1809,"corporation":false,"usgs":true,"family":"Attanasi","given":"Emil","email":"attanasi@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":362881,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011821,"text":"70011821 - 1981 - Volcanic origin of the eruptive plumes on Io","interactions":[],"lastModifiedDate":"2025-12-23T16:43:03.198196","indexId":"70011821","displayToPublicDate":"1981-03-27T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Volcanic origin of the eruptive plumes on Io","docAbstract":"Permian and Triassic rocks near Quinn River Crossing, Humboldt County, Nevada, consist of four structural blocks: (1) a Lower Permian volcanic block; (2) a Permian(?) chert-arenite block; (3) a Lower Permian limestone block; and (4) a Permian and Triassic block. The contacts between the Permian volcanic block and the others are interpreted as thrust faults or glide surfaces. None of these rocks are metamorphosed, in contrast to those of the surrounding mountain ranges. Each of the blocks is lithically similar in some respects to rocks of the Osgood Mountains area 80 km to the southeast. The fusulinid and brachiopod faunas of two of the blocks display affinities to those of the McCloud Limestone of northern California and the Coyote Butte Limestone of central Oregon, and the fauna of another block has elements in common with autochthonous rocks of eastern Nevada and Utah.
All four blocks probably are allochthonous with respect to the rocks exposed in the surrounding mountain ranges, but their points of origin remain obscure. The rocks at Quinn River Crossing provide a link among the Permian rocks of north-central Nevada, northern California, and central Oregon and a possible key to their original relations, but more comparative data are needed.
","language":"English","publisher":"GSA","doi":"10.1130/0091-7613(1981)9<123:PATRNQ>2.0.CO;2","usgsCitation":"Ketner, K.B., and Wardlaw, B.R., 1981, Permian and Triassic rocks near Quinn River Crossing, Humboldt County, Nevada: Geology, v. 9, no. 3, p. 123-126, https://doi.org/10.1130/0091-7613(1981)9<123:PATRNQ>2.0.CO;2.","productDescription":"4 p.","startPage":"123","endPage":"126","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":373015,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","county":"Humboldt","otherGeospatial":"Quinn River Crossing","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[-117.0293,42.0003],[-117.0175,42.0003],[-117.0171,41.6942],[-117.0173,41.667],[-117.0174,41.6457],[-117.0177,41.5167],[-117.0177,41.5113],[-117.0172,41.5018],[-117.0174,41.4732],[-117.0175,41.4586],[-117.0174,41.3842],[-117.0175,41.3697],[-117.0176,41.3556],[-117.0177,41.3411],[-117.0172,41.3266],[-117.0173,41.3107],[-117.0174,41.2971],[-117.0175,41.283],[-117.0176,41.268],[-117.0173,41.2249],[-117.0173,41.2109],[-117.0169,41.1954],[-117.0169,41.1809],[-117.017,41.1668],[-117.0177,41.1519],[-117.0173,41.1364],[-117.0169,41.0929],[-117.017,41.0779],[-117.0171,41.0639],[-117.0172,41.0493],[-117.0173,41.0344],[-117.0168,41.0203],[-117.0169,41.0058],[-117.017,41.0003],[-117.0164,40.9899],[-117.0171,40.9754],[-117.0166,40.9609],[-117.0167,40.9454],[-117.0168,40.9318],[-117.0169,40.9169],[-117.0176,40.9019],[-117.0171,40.8865],[-117.0172,40.8715],[-117.0173,40.8583],[-117.0168,40.8447],[-117.0175,40.8302],[-117.017,40.8148],[-117.0179,40.7712],[-117.0183,40.7123],[-117.019,40.6978],[-117.0179,40.6846],[-117.0174,40.6687],[-117.0169,40.6542],[-117.0164,40.6415],[-117.0357,40.642],[-117.0551,40.6417],[-117.0733,40.6417],[-117.0921,40.6418],[-117.1115,40.6414],[-117.1302,40.6414],[-117.1502,40.641],[-117.1684,40.6406],[-117.1866,40.6402],[-117.2078,40.6398],[-117.2272,40.6399],[-117.2459,40.6399],[-117.249,40.6358],[-117.2539,40.6254],[-117.2606,40.6105],[-117.2624,40.6064],[-117.2673,40.5964],[-117.274,40.5819],[-117.2807,40.567],[-117.2874,40.5525],[-117.2935,40.538],[-117.2977,40.5334],[-117.3008,40.5244],[-117.3007,40.5674],[-117.3,40.5815],[-117.3012,40.5965],[-117.3011,40.6105],[-117.3011,40.6259],[-117.3011,40.64],[-117.3016,40.655],[-117.3016,40.6699],[-117.3016,40.6827],[-117.4137,40.6828],[-117.4525,40.6833],[-117.4694,40.6833],[-117.4906,40.6833],[-117.5088,40.6837],[-117.5258,40.6837],[-117.5488,40.6837],[-117.5682,40.6837],[-117.5882,40.6837],[-117.6076,40.6837],[-117.6428,40.6836],[-117.6428,40.7122],[-117.6423,40.7281],[-117.6423,40.7439],[-117.6423,40.7571],[-117.6423,40.7703],[-117.6431,40.8438],[-117.6431,40.8574],[-117.6595,40.8573],[-117.679,40.8573],[-117.6984,40.8568],[-117.7185,40.8573],[-117.7373,40.8572],[-117.7549,40.8572],[-117.8497,40.8574],[-117.8691,40.8574],[-117.8898,40.8573],[-117.9092,40.8572],[-117.9293,40.8572],[-117.9487,40.8571],[-117.9676,40.857],[-117.9828,40.857],[-118.0046,40.8569],[-118.0229,40.8568],[-118.0423,40.8567],[-118.063,40.8567],[-118.0818,40.857],[-118.0988,40.8569],[-118.1183,40.8573],[-118.1365,40.8572],[-118.1553,40.8571],[-118.1754,40.857],[-118.1991,40.8569],[-118.2142,40.8573],[-118.2349,40.8567],[-118.255,40.8566],[-118.2738,40.8564],[-118.2932,40.8563],[-118.3127,40.8562],[-118.3291,40.8561],[-118.3509,40.856],[-118.3692,40.8563],[-118.388,40.8557],[-118.4081,40.856],[-118.4275,40.8559],[-118.4439,40.8558],[-118.4646,40.8556],[-118.4834,40.8555],[-118.5028,40.8553],[-118.5235,40.8551],[-118.5411,40.855],[-118.5435,40.855],[-118.6717,40.8548],[-118.6906,40.8546],[-118.7781,40.8556],[-118.7872,40.8555],[-118.7869,40.9049],[-118.7871,40.9172],[-118.7869,40.9426],[-118.7879,40.9607],[-118.8414,40.9606],[-118.9546,40.9607],[-119.0903,40.9591],[-119.1627,40.9591],[-119.3088,40.9589],[-119.3288,40.9586],[-119.3305,40.9999],[-119.3305,41.235],[-119.317,41.2352],[-119.3042,41.2354],[-119.3038,41.2676],[-119.3033,41.2957],[-119.3028,41.3225],[-119.302,41.3888],[-119.3021,41.4133],[-119.3229,41.413],[-119.323,41.443],[-119.3227,41.5256],[-119.3226,41.5905],[-119.3262,41.5905],[-119.3287,41.5905],[-119.3287,41.5918],[-119.3278,41.6963],[-119.3275,41.7103],[-119.3279,41.7703],[-119.3276,41.8566],[-119.3227,41.8571],[-119.3244,41.9936],[-119.1449,41.9942],[-119.0478,41.9946],[-118.9076,41.9935],[-118.7764,41.993],[-118.7723,41.993],[-118.5914,41.9943],[-118.4287,41.9952],[-118.3891,41.9954],[-118.3496,41.9956],[-118.3125,41.9958],[-118.2341,41.9963],[-118.2137,41.9964],[-118.1952,41.9965],[-118.155,41.9967],[-118.1352,41.9968],[-118.0784,41.9971],[-118.0426,41.9974],[-118.0191,41.9974],[-117.9264,41.9979],[-117.8289,41.9981],[-117.8066,41.9981],[-117.7733,41.9982],[-117.7726,41.9982],[-117.7152,41.9982],[-117.7083,41.9983],[-117.6694,41.9983],[-117.6509,41.9984],[-117.6164,41.9984],[-117.612,41.9984],[-117.5582,41.9987],[-117.53,41.9987],[-117.5038,41.9988],[-117.4899,41.9988],[-117.4003,41.9984],[-117.2864,41.9985],[-117.2307,41.9991],[-117.0298,42.0003],[-117.0293,42.0003]]]},\"properties\":{\"name\":\"Humboldt\",\"state\":\"NV\"}}]}","volume":"9","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ketner, Keith B.","contributorId":957,"corporation":false,"usgs":true,"family":"Ketner","given":"Keith","email":"","middleInitial":"B.","affiliations":[],"preferred":true,"id":784205,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wardlaw, Bruce R. bwardlaw@usgs.gov","contributorId":266,"corporation":false,"usgs":true,"family":"Wardlaw","given":"Bruce","email":"bwardlaw@usgs.gov","middleInitial":"R.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":784206,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1007518,"text":"1007518 - 1981 - Dark CO2-fixation and diurnal malic acid fluctuations in the submerged-aquatic Isoetes storkii","interactions":[],"lastModifiedDate":"2025-03-21T16:38:42.86719","indexId":"1007518","displayToPublicDate":"1981-03-06T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2932,"text":"Oecologia","active":true,"publicationSubtype":{"id":10}},"title":"Dark CO2-fixation and diurnal malic acid fluctuations in the submerged-aquatic Isoetes storkii","docAbstract":"In the leaves (but not corms) of the submerged aquatic Isoetes storkii malic acid concentration fluctuated from 22 μeg g FW-1 in the evening to 171 μeg g FW-1 in the morning. Associated with this was a change in titratable acidity of 152 μeg g FW-1 between morning and evening. 14C carbon was fixed in both the light and the dark, though the amount of carbon fixed in the light was more than that fixed in the dark. Autoradiographs show 88% of 14CO2 fixed in the dark is recovered after 1 h, in malic acid and the remainder in one other unidentified product, whereas these two products contain less than 15% of the 14C fixed after 1 h exposure to 14CO2 in the light. It is suggested that CAM metabolism in this aquatic species may be related to the low availability of CO2 for photosynthesis during the day in its aquatic environment and that this metabolic pathway may prove common in the genus Isoetes.
","language":"English","publisher":"Springer Nature","doi":"10.1007/BF00346490","usgsCitation":"Keeley, J., Morton, B., Babcock, B., Castillo, P., Fish, B., Jerauld, E., Johnson, B., Landre, L., Lum, H., Miller, C., Parker, A., and Van Steenwyk, G., 1981, Dark CO2-fixation and diurnal malic acid fluctuations in the submerged-aquatic Isoetes storkii: Oecologia, v. 48, no. 3, p. 332-333, https://doi.org/10.1007/BF00346490.","productDescription":"2 p.","startPage":"332","endPage":"333","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":129832,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4acce4b07f02db67e3c8","contributors":{"authors":[{"text":"Keeley, Jon E. 0000-0002-4564-6521","orcid":"https://orcid.org/0000-0002-4564-6521","contributorId":69082,"corporation":false,"usgs":true,"family":"Keeley","given":"Jon E.","affiliations":[],"preferred":false,"id":315533,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Morton, B.","contributorId":98677,"corporation":false,"usgs":true,"family":"Morton","given":"B.","affiliations":[],"preferred":false,"id":315534,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Babcock, B.","contributorId":104854,"corporation":false,"usgs":true,"family":"Babcock","given":"B.","email":"","affiliations":[],"preferred":false,"id":315535,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Castillo, P.","contributorId":7232,"corporation":false,"usgs":true,"family":"Castillo","given":"P.","affiliations":[],"preferred":false,"id":315524,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fish, B.","contributorId":19908,"corporation":false,"usgs":true,"family":"Fish","given":"B.","email":"","affiliations":[],"preferred":false,"id":315526,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jerauld, E.","contributorId":45255,"corporation":false,"usgs":true,"family":"Jerauld","given":"E.","email":"","affiliations":[],"preferred":false,"id":315531,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Johnson, B.","contributorId":54916,"corporation":false,"usgs":true,"family":"Johnson","given":"B.","email":"","affiliations":[],"preferred":false,"id":315532,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Landre, L.","contributorId":38102,"corporation":false,"usgs":true,"family":"Landre","given":"L.","email":"","affiliations":[],"preferred":false,"id":315528,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Lum, H.","contributorId":10370,"corporation":false,"usgs":true,"family":"Lum","given":"H.","email":"","affiliations":[],"preferred":false,"id":315525,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Miller, C.","contributorId":44114,"corporation":false,"usgs":false,"family":"Miller","given":"C.","affiliations":[],"preferred":false,"id":315530,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Parker, A.","contributorId":41777,"corporation":false,"usgs":true,"family":"Parker","given":"A.","email":"","affiliations":[],"preferred":false,"id":315529,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Van Steenwyk, G.","contributorId":32867,"corporation":false,"usgs":true,"family":"Van Steenwyk","given":"G.","email":"","affiliations":[],"preferred":false,"id":315527,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}} ,{"id":70157017,"text":"70157017 - 1981 - The Saudi Arabian Deputy Ministry for Mineral Resources Remote Sensing Center : services and applications of Landsat Data","interactions":[],"lastModifiedDate":"2015-09-02T19:40:42","indexId":"70157017","displayToPublicDate":"1981-03-05T06:30:00","publicationYear":"1981","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"The Saudi Arabian Deputy Ministry for Mineral Resources Remote Sensing Center : services and applications of Landsat Data","language":"English","publisher":"Ministry of Petroleum and Mineral Resources, Deputy Ministry for Mineral Resources","publisherLocation":"Jiddah, Kingdom of Saudi Arabia","usgsCitation":"Ferguson, K.P., Water Resources Division, U.S. Geological Survey, and Saudi Arabia. Deputy Ministry for Mineral Resources, 1981, The Saudi Arabian Deputy Ministry for Mineral Resources Remote Sensing Center : services and applications of Landsat Data, iv, 28 p. : maps ; 28 cm.","productDescription":"iv, 28 p. : maps ; 28 cm.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":307895,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Saudi Arabia","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 32.08007812499999,\n 33.137551192346145\n ],\n [\n 43.59375,\n 11.867350911459308\n ],\n [\n 62.40234375,\n 20.220965779522313\n ],\n [\n 43.681640625,\n 38.272688535980976\n ],\n [\n 32.08007812499999,\n 33.137551192346145\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"560bb707e4b058f706e53ef4","contributors":{"authors":[{"text":"Ferguson, Kenneth P. 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","language":"English","publisher":"Ministry of Petroleum and Mineral Resources, Deputy Ministry for Mineral Resources","publisherLocation":"Jiddah, Saudi Arabia","usgsCitation":"Saudi Arabia. Deputy Ministry for Mineral Resources, and U.S. Geological Survey Saudi Arabia Mission, 1981, An earth-science bibliography of the Arabian Peninsula and surrounding area, 1980 supplement, iii, 117 p.","productDescription":"iii, 117 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":307878,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Saudi Arabia","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"55e81dabe4b0dacf699e6652","contributors":{"compilers":[{"text":"Rooney, R.E.","contributorId":147329,"corporation":false,"usgs":false,"family":"Rooney","given":"R.E.","email":"","affiliations":[],"preferred":false,"id":571257,"contributorType":{"id":3,"text":"Compilers"},"rank":1},{"text":"Selner, G.I.","contributorId":13229,"corporation":false,"usgs":true,"family":"Selner","given":"G.I.","affiliations":[],"preferred":false,"id":571258,"contributorType":{"id":3,"text":"Compilers"},"rank":2}],"authors":[{"text":"Saudi Arabia. Deputy Ministry for Mineral Resources","contributorId":147327,"corporation":true,"usgs":false,"organization":"Saudi Arabia. Deputy Ministry for Mineral Resources","id":571255,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"U.S. Geological Survey Saudi Arabia Mission","contributorId":147326,"corporation":true,"usgs":false,"organization":"U.S. Geological Survey Saudi Arabia Mission","id":571256,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70175877,"text":"70175877 - 1981 - Test and design of automatic fluvial suspended-sediment samplers","interactions":[],"lastModifiedDate":"2018-04-02T10:49:30","indexId":"70175877","displayToPublicDate":"1981-03-04T14:15:00","publicationYear":"1981","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"title":"Test and design of automatic fluvial suspended-sediment samplers","docAbstract":"No abstract available.
","language":"English","publisher":"Federal Inter-Agency Sedimentation Project","usgsCitation":"Skinner, J.V., and Beverage, J., 1981, Test and design of automatic fluvial suspended-sediment samplers, 53 p.","productDescription":"53 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":327064,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57b82dece4b03fd6b7da3a1c","contributors":{"authors":[{"text":"Skinner, J. V.","contributorId":32504,"corporation":false,"usgs":true,"family":"Skinner","given":"J.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":646481,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beverage, J.P.","contributorId":44120,"corporation":false,"usgs":true,"family":"Beverage","given":"J.P.","affiliations":[],"preferred":false,"id":646482,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70208902,"text":"70208902 - 1981 - Geology and concepts of genesis of important types of uranium deposits","interactions":[],"lastModifiedDate":"2020-06-11T20:13:21.119676","indexId":"70208902","displayToPublicDate":"1981-03-04T13:58:29","publicationYear":"1981","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Geology and concepts of genesis of important types of uranium deposits","docAbstract":"Uranium ore deposits occur in nearly every major rock type in the earth’s crust, and nearly all igneous, metamorphic, and sedimentary processes are capable of concentrating or dispersing uranium. However, only three types of deposits account for more than 70 percent of known Western World Reasonably Assured Resources (WWRAR): Precambrian quartz-pebble conglomerate type, Proterozoic unconformity type, and Phanerozoic sandstone type. Igneous-related processes in plutonic, volcanic, and magmatic-hydrothermal environments, considered important 25 years ago, now account for less than 10 percent of world resources known at present.
The oldest known ore deposits were formed in conglomerates by placer processes under unique anoxic conditions. For the last 2.2 b.y., since oxygenation of the atmosphere, the genesis of both high- and low-temperature deposits has been dominated by three general geochemical processes: (1) oxidation of uranium to soluble U(VI) species permitting aqueous transport, perhaps most commonly as uranyl-carbonate complexes; (2) reduction, principally by C, S−2, or Fe+2 species, to U(IV) to allow precipitation of uraninite (pitchblende), and coffinite, although the specific reductant commonly cannot be determined because these three tend to be associated geologically; and (3) igneous and metamorphic differentiation caused by exclusion of uranium from crystal structure of most rock-forming minerals.
The geochemistry of uranium ore-forming processes has changed in time because of the evolution of life forms and their impact on the earth’s oxygen and carbon budgets. This evolution is reflected in changing predominance of ore types in geologic time: (1) pre-2.8 b.y. ago—no known uranium ore deposits; (2) ca. 2.8 to 2.2 b.y. ago—the first intràcratonic basins and anoxic atmosphere permitted accumulation of placer deposits of uraninite in quartz-pebble conglomerates; these deposits contain about 19 percent of the western world’s resources; (3) ca. 2.2 to 0.4 b.y. ago—following oxygenation of the atmosphere uranium was oxidized and transported as soluble U(VI) complexes to sites of reduction, commonly in organic carbon-rich marginal marine environments. Diagenesis, metamorphism, and near-surface redox enrichment subsequently formed unconformity-type, ultrametamorphic-type, and vein-type ore deposits which together contain more than 25 percent of the western world’s resources; (4) ca. 0.4 b.y. ago to present—after development of land plants the most important ore-forming process was redox-controlled deposition from ground water in continental sediments. Sandstone-type deposits, characteristic of this stage, contain about 40 percent of the western world’s resources.
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A combination of temperate and tropical zonations were used to date Leg 63 coccolith assemblages because of intergradations of warm and cool species along the transect. Variations in the abundance and the presence and absence of Discoaster species are useful in recognizing warm-cool intergradations. New taxa described in this report include Discoaster okadai n. sp., D. sanmiguelensis n. sp., Helicosphaera californiana n. sp., H. crouchii n. sp., H. gertae n. sp., and H. vedderi n. sp.
","language":"English","publisher":"Texas A&M","doi":"10.2973/dsdp.proc.63.111.1981","usgsCitation":"Bukry, D., 1981, Pacific Coast coccolith stratigraphy between Point Conception and Cabo Corrientes, Deep Sea Drilling Project Leg 63: Initial Reports of the D.S.D.P., v. 63, p. 445-471, https://doi.org/10.2973/dsdp.proc.63.111.1981.","productDescription":"27 p.","startPage":"445","endPage":"471","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":488876,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2973/dsdp.proc.63.111.1981","text":"Publisher Index Page"},{"id":372767,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States, Mexico","state":"California","otherGeospatial":"Baja California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -106.171875,\n 23.36242859340884\n ],\n [\n -116.01562499999999,\n 34.161818161230386\n ],\n [\n -121.70654296874999,\n 37.78808138412046\n ],\n [\n -124.62890625,\n 36.77409249464195\n ],\n [\n -120.673828125,\n 31.052933985705163\n ],\n [\n -111.64306640625,\n 20.694461597907797\n ],\n [\n -106.171875,\n 23.36242859340884\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"63","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bukry, David 0000-0003-4540-890X dbukry@usgs.gov","orcid":"https://orcid.org/0000-0003-4540-890X","contributorId":3550,"corporation":false,"usgs":true,"family":"Bukry","given":"David","email":"dbukry@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":783474,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70208807,"text":"70208807 - 1981 - Silicoflagellate stratigraphy of offshore California and Baja California, Deep Sea Drilling Project, Leg 63.","interactions":[],"lastModifiedDate":"2020-03-02T10:40:12","indexId":"70208807","displayToPublicDate":"1981-03-02T10:26:47","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1996,"text":"Initial Reports of the D.S.D.P.","active":true,"publicationSubtype":{"id":10}},"title":"Silicoflagellate stratigraphy of offshore California and Baja California, Deep Sea Drilling Project, Leg 63.","docAbstract":"Quantitative study of middle and upper Miocene silicoflagellate assemblages from Pacific Coast Sites 467 and 469 to 472 has permitted identification of warm- and temperate-water biostratigraphic zones and the formulation of a model for relative paleotemperature values (Ts) on the basis of warm- and temperate-genera abundances. Geographic and temporal trends in Ts for Pacific Coast assemblages are indicated. Three new taxa are described: Dictyocha subclinata Bukry n. sp., Mesocena diodon borderlandensis Bukry n. subsp., and M. hexalitha Bukry, n. sp. The ranges in space and time for several species, such as Dictyocha neonautica var. cocosensis and Distephanus mesophthalmus, are increased. Regionally, barred forms of Distephanus stauracanthus become predominant over ringed forms in the upper part of the middle Miocene Distephanus stauracanthus Subzone.
","language":"English","publisher":"Texas A&M","doi":"10.2973/dsdp.proc.63.114.1981","usgsCitation":"Bukry, D., 1981, Silicoflagellate stratigraphy of offshore California and Baja California, Deep Sea Drilling Project, Leg 63.: Initial Reports of the D.S.D.P., v. 63, p. 539-557, https://doi.org/10.2973/dsdp.proc.63.114.1981.","productDescription":"19 p.","startPage":"539","endPage":"557","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":488872,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2973/dsdp.proc.63.114.1981","text":"Publisher Index Page"},{"id":372765,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Mexico, United States","state":"California","otherGeospatial":"Baja California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -110.91796875,\n 22.350075806124867\n ],\n [\n -108.544921875,\n 22.998851594142913\n ],\n [\n -106.875,\n 24.287026865376436\n ],\n [\n -116.3671875,\n 34.88593094075317\n ],\n [\n -119.88281249999999,\n 33.7243396617476\n ],\n [\n -119.35546875000001,\n 28.14950321154457\n ],\n [\n -113.291015625,\n 22.024545601240337\n ],\n [\n -110.91796875,\n 22.350075806124867\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"63","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bukry, David 0000-0003-4540-890X dbukry@usgs.gov","orcid":"https://orcid.org/0000-0003-4540-890X","contributorId":3550,"corporation":false,"usgs":true,"family":"Bukry","given":"David","email":"dbukry@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":783469,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70122285,"text":"70122285 - 1981 - Make the last slide first","interactions":[],"lastModifiedDate":"2024-05-22T11:07:06.622909","indexId":"70122285","displayToPublicDate":"1981-03-01T14:16:14","publicationYear":"1981","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":"Make the last slide first","docAbstract":"No abstract available.
","language":"English","publisher":"SEPM","doi":"10.2110/jsr.51.1","usgsCitation":"Shinn, E., 1981, Make the last slide first: Journal of Sedimentary Petrology, v. 51, no. 1, p. 1-6, https://doi.org/10.2110/jsr.51.1.","productDescription":"6 p.","startPage":"1","endPage":"6","numberOfPages":"6","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":293044,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"51","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53fd9f5ee4b0adaeea6c4e4c","contributors":{"authors":[{"text":"Shinn, E.A.","contributorId":38610,"corporation":false,"usgs":true,"family":"Shinn","given":"E.A.","email":"","affiliations":[],"preferred":false,"id":499494,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":5221704,"text":"5221704 - 1981 - Recovery of brain and plasma cholinesterase activities in ducklings exposed to organophosphorus pesticides","interactions":[],"lastModifiedDate":"2023-12-12T17:54:50.859876","indexId":"5221704","displayToPublicDate":"1981-03-01T12:18:57","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Recovery of brain and plasma cholinesterase activities in ducklings exposed to organophosphorus pesticides","docAbstract":"Brain and plasma cholinesterase (ChE) activities were determined for mallard ducklings (Anas platyrhynchos) exposed to dicrotophos and fenthion. Recovery rates of brain ChE did not differ between ducklings administered a single oral dose vs. a 2-week dietary dose of these organophosphates. Exposure to the organophosphates, followed by recovery of brain ChE, did not significantly affect the degree of brain ChE inhibition or the recovery of ChE activity at a subsequent exposure. Recovery of brain ChE activity followed the general model Y=a+b(logX) with rapid recovery to about 50% of normal, followed by a slower rate of recovery until normal ChE activity levels were attained. Fenthion and dicrotophos-inhibited brain ChE were only slightly reactivatedin vitro by pyridine-2-aldoxime methiodide, which suggested that spontaneous reactivation was not a primary method of recovery of ChE activity. Recovery of brain ChE activity can be modeled for interpretation of sublethal inhibition of brain ChE activities in wild birds following environmental applications of organophosphates. Plasma ChE activity is inferior to brain ChE activity for environmental monitoring, because of its rapid recovery and large degree of variation among individuals.
","language":"English","publisher":"Springer","doi":"10.1007/BF01055623","usgsCitation":"Fleming, W.J., 1981, Recovery of brain and plasma cholinesterase activities in ducklings exposed to organophosphorus pesticides: Archives of Environmental Contamination and Toxicology, v. 10, no. 2, p. 215-229, https://doi.org/10.1007/BF01055623.","productDescription":"15 p.","startPage":"215","endPage":"229","numberOfPages":"15","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":193351,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"10","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a7ee4b07f02db648637","contributors":{"authors":[{"text":"Fleming, W. James","contributorId":85279,"corporation":false,"usgs":true,"family":"Fleming","given":"W.","email":"","middleInitial":"James","affiliations":[],"preferred":false,"id":334487,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70231504,"text":"70231504 - 1981 - Tectonic elements of the southern part of the Gulf of California","interactions":[],"lastModifiedDate":"2022-05-11T16:56:37.358469","indexId":"70231504","displayToPublicDate":"1981-03-01T11:52:32","publicationYear":"1981","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":"Tectonic elements of the southern part of the Gulf of California","docAbstract":"Closely spaced seismic and bathymetric surveys in the southern province of the Gulf of California reveal a tectonically active and structurally complex plate boundary. While heat-flow measurements, seismicity, large sediment accumulations on continental margins, and the presence of oceanic crust in deep basins strongly suggest divergent plate motion, magnetic anomaly patterns are conspicuously absent in the Gulf as a whole. The rate of sediment accumulation (range: 6-1,000 m/m.y.), however, provides an alternative for the differentiation of two types of fault traces and suggests a process by which recently formed plate boundary zones evolve.
Active faults manifest themselves as steep, elongate scarps delineating the active plate boundary zone. These fault traces appear to converge and diverge, for example in the Pescadero Basin complex, in a manner similar to the Southern California borderland. The floors of the intervening basins are flat and relatively sediment free. Relict faults, also elongate fracture zones, are distinguished from active traces in that they are completely filled with hemipelagic muds. The relict faults are located along both sides of the active plate boundary zone and subparallel to it.
These features infer that plate motion is relatively rapid, thus explaining the paucity of sediment accumulation in actively spreading basins in spite of high sedimentation rates. Substantial plate boundary readjustment in short time periods is suggested by the periodic abandoment and subsequent infilling and attachment of formerly active transform faults to the more stable margins of the plates involved. The Gulf of California, therefore, represents a working model of the evolution of a plate boundary and its sedimentological consequences in the early tectonic developmental stage of a passive margin ocean basin such as the Atlantic.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/GSAB-P2-92-360","usgsCitation":"Niemitz, J.W., and Bischoff, J.L., 1981, Tectonic elements of the southern part of the Gulf of California: GSA Bulletin, v. 92, no. 3 Part II, p. 360-407, https://doi.org/10.1130/GSAB-P2-92-360.","productDescription":"48 p.","startPage":"360","endPage":"407","costCenters":[],"links":[{"id":400519,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Meixco","otherGeospatial":"southern Gulf of California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -109.86328125,\n 22.654571520098994\n ],\n [\n -107.16064453125,\n 24.026396666017327\n ],\n [\n -111.70898437499999,\n 28.825425374477224\n ],\n [\n -112.8515625,\n 28.401064827220896\n ],\n [\n -110.6982421875,\n 24.347096633808512\n ],\n [\n -109.8193359375,\n 22.755920681486405\n ],\n [\n -109.86328125,\n 22.654571520098994\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"92","issue":"3 Part II","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Niemitz, J. W.","contributorId":64938,"corporation":false,"usgs":true,"family":"Niemitz","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":842799,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bischoff, James L. jbischoff@usgs.gov","contributorId":1389,"corporation":false,"usgs":true,"family":"Bischoff","given":"James","email":"jbischoff@usgs.gov","middleInitial":"L.","affiliations":[],"preferred":true,"id":842800,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70011991,"text":"70011991 - 1981 - Swash mark and grain flow","interactions":[],"lastModifiedDate":"2014-08-26T16:11:20","indexId":"70011991","displayToPublicDate":"1981-03-01T00:00:00","publicationYear":"1981","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":"Swash mark and grain flow","docAbstract":"Swash marks composed entirely of coarse sand are commonly found on coarse-sand beaches. These swash marks are 10 to 30 centimeters in width and a few millimeters to one centimeter in height. Previous observations, mostly on finer-sand beaches, indicate swash marks are seldom over a few millimeters in height and are commonly composed of material readily floated by surface tension (e.g., mica flakes and shell fragments). Swash marks composed of coarse sand have both fining seaward and fining with depth trends in grain size. Apparently, the leading margin of a wave upwash drives a highly concentrated flow of grains in which both grain size and grain velocity decrease with depth. Therefore, large grains are transported at greater velocities than are smaller grains. Thus, at the maximum advance of an upwash, a swash mark is deposited which has the observed fining seaward and fining with depth trends in grain size.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Sedimentary Petrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"SEPM","doi":"10.1306/212F7C61-2B24-11D7-8648000102C1865D","issn":"00224472","usgsCitation":"Sallenger, 1981, Swash mark and grain flow: Journal of Sedimentary Petrology, v. 51, no. 1, p. 261-264, https://doi.org/10.1306/212F7C61-2B24-11D7-8648000102C1865D.","productDescription":"4 p.","startPage":"261","endPage":"264","numberOfPages":"4","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":220734,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":293051,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1306/212F7C61-2B24-11D7-8648000102C1865D"}],"volume":"51","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba32ce4b08c986b31fbd7","contributors":{"authors":[{"text":"Sallenger, Jr.","contributorId":105768,"corporation":false,"usgs":true,"family":"Sallenger","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":362463,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1013613,"text":"1013613 - 1981 - An empirical methodology for estimating entrainment losses at power plants sited on estuaries","interactions":[],"lastModifiedDate":"2026-04-13T16:53:34.119923","indexId":"1013613","displayToPublicDate":"1981-03-01T00:00:00","publicationYear":"1981","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":"An empirical methodology for estimating entrainment losses at power plants sited on estuaries","docAbstract":"A model based on empirically derived age‐, time‐, and space‐variant entrainment susceptibility data may be used for estimating conditional entrainment mortality of aquatic organisms, particularly fish and shellfish, caused by operation of one or more power plants on an estuary. Model application requires knowledge of the morphometry of the water body, the power‐plant flow rates, the probability of entrainment survival, and the duration, distribution, and abundance of entrainable age‐groups. A novel feature of the model is that organism distribution and movement within the model are defined by information derived from field samples rather than by hydrodynamic principles and equations.
","language":"English","publisher":"American Fisheries Society","doi":"10.1577/1548-8659(1981)110<253:AEMFEE>2.0.CO;2","usgsCitation":"Boreman, J., Goodyear, C., and Christensen, S., 1981, An empirical methodology for estimating entrainment losses at power plants sited on estuaries: Transactions of the American Fisheries Society, v. 110, no. 2, p. 253-260, https://doi.org/10.1577/1548-8659(1981)110<253:AEMFEE>2.0.CO;2.","productDescription":"8 p.","startPage":"253","endPage":"260","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":132101,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"110","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad8e4b07f02db684ac1","contributors":{"authors":[{"text":"Boreman, J.","contributorId":55372,"corporation":false,"usgs":true,"family":"Boreman","given":"J.","email":"","affiliations":[],"preferred":false,"id":318862,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Goodyear, C.P.","contributorId":11538,"corporation":false,"usgs":true,"family":"Goodyear","given":"C.P.","email":"","affiliations":[],"preferred":false,"id":318861,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Christensen, S.W.","contributorId":8023,"corporation":false,"usgs":true,"family":"Christensen","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":318860,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70011712,"text":"70011712 - 1981 - Geomorphology and sediment stability of a segment of the U.S. continental slope off New Jersey","interactions":[],"lastModifiedDate":"2025-12-23T16:48:30.438881","indexId":"70011712","displayToPublicDate":"1981-02-27T00:00:00","publicationYear":"1981","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Geomorphology and sediment stability of a segment of the U.S. continental slope off New Jersey","docAbstract":"The morphology of complex deposits of Pleistocene sediments covering the upper continental slope between Lindenkohl Canyon and South Toms Canyon results from both depositional and erosional processes. Small slump or slide features were detected primarily on the flanks of canyons or valleys and were observed to occur only within Pleistocene-aged sediments. Eocene to Miocene sediments are exposed over much of the mid- and lower slope in this area.
","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.211.4485.935","issn":"00368075","usgsCitation":"Robb, J.M., Hampson, J., and Twichell, D., 1981, Geomorphology and sediment stability of a segment of the U.S. continental slope off New Jersey: Science, v. 211, no. 4485, p. 935-937, https://doi.org/10.1126/science.211.4485.935.","productDescription":"3 p.","startPage":"935","endPage":"937","costCenters":[],"links":[{"id":221461,"rank":1,"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 \"coordinates\": [\n [\n [\n -74.37367385915496,\n 40.40015120680235\n ],\n [\n -74.37367385915496,\n 38.46903077827153\n ],\n [\n -72.66231852711805,\n 38.46903077827153\n ],\n [\n -72.66231852711805,\n 40.40015120680235\n ],\n [\n -74.37367385915496,\n 40.40015120680235\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"211","issue":"4485","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a27a8e4b0c8380cd59aa7","contributors":{"authors":[{"text":"Robb, James M.","contributorId":73272,"corporation":false,"usgs":true,"family":"Robb","given":"James","email":"","middleInitial":"M.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":361784,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hampson, J.C. Jr.","contributorId":87945,"corporation":false,"usgs":true,"family":"Hampson","given":"J.C.","suffix":"Jr.","affiliations":[],"preferred":false,"id":361786,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Twichell, D.C.","contributorId":84304,"corporation":false,"usgs":true,"family":"Twichell","given":"D.C.","affiliations":[],"preferred":false,"id":361785,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70208685,"text":"70208685 - 1981 - Cenozoic coccoliths from the Deep Sea Drilling Project","interactions":[],"lastModifiedDate":"2020-02-25T07:31:29","indexId":"70208685","displayToPublicDate":"1981-02-24T14:28:43","publicationYear":"1981","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Cenozoic coccoliths from the Deep Sea Drilling Project","docAbstract":"Coccoliths, as the dominant constituent of many Deep Sea Drilling Project cores, have provided the means of rapid and detailed biostratigraphic zonation to help guide ocean-sediment coring operations aboard D.V. Glomar Challenger. The Cenozoic has been divided into 50 to 60 zones and subzones which are most effective for middle- and low- latitude sites. Because key stratigraphic coccoliths have proved more resistant to diagenetic change than planktic foraminifers, they contributed to dating of sedimentary beds within and just above basalt, directly demonstrating the correctness of the sea-floor spreading hypothesis. An unexpected discovery of Braarudosphaera beds in the South Atlantic produced valuable speculation on the response of coccolithophorids to paleoceanographic changes.
Samples from the diversity of oceanic terrains explored by early cruises of Glomar Challenger helped in the recognition of the effects of differential preservation —etching and overgrowth from species to species —and in the determination of biogeographic ranges which would affect the taxonomic, paleoecologic and biostratigraphic assignments of coccoliths. DSDP sites have provided the matrix needed to outline depth sequences based on dissolution rank, and paleotemperature sequences based on abundance along latitudinal traverses. New Hydraulic Piston Corer capabilities will make possible application of magnetic reversal stratigraphy to undisturbed cores where coccolith evolutionary transitions and datum-interval stratigraphy can be established.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The Deep Sea Drilling Project: A Decade of Progress","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Society for Sedimentary Geology","doi":"10.2110/pec.81.32.0335","usgsCitation":"Bukry, D., 1981, Cenozoic coccoliths from the Deep Sea Drilling Project, chap. of The Deep Sea Drilling Project: A Decade of Progress, v. 32, p. 335-353, https://doi.org/10.2110/pec.81.32.0335.","productDescription":"19 p.","startPage":"335","endPage":"353","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":372576,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bukry, David 0000-0003-4540-890X dbukry@usgs.gov","orcid":"https://orcid.org/0000-0003-4540-890X","contributorId":3550,"corporation":false,"usgs":true,"family":"Bukry","given":"David","email":"dbukry@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":782989,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70208683,"text":"70208683 - 1981 - Synthesis of silicoflagellate stratigraphy for maestrichtian to quaternary marine sediment","interactions":[],"lastModifiedDate":"2020-02-24T14:28:24","indexId":"70208683","displayToPublicDate":"1981-02-24T14:22:20","publicationYear":"1981","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"title":"Synthesis of silicoflagellate stratigraphy for maestrichtian to quaternary marine sediment","docAbstract":"Cosmopolitan and low-latitude silicoflagellate distributions determined from Deep Sea Drilling Project cores are synthesized into a sequence of 23 biostratigraphic zones and subzones for tropical and subtropical ocean areas. The stratigraphic relation of major morphologic changes in silicoflagellates from all areas is summarized. Two new Neogene subzones, one new Paleogene subzone, one new species, and one new variety are defined: Dictyocha perlaevis ornata Subzone, Dictyocha neonautica Subzone, Distephanus speculum haliomma Subzone, Dictyocha neonautica Bukry, n. sp., and D. neonautica var. cocosensis Bukry, n. var.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The Deep Sea Drilling Project: A Decade of Progress","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Society for Sedimentary Geology","doi":"10.2110/pec.81.32.0433","usgsCitation":"Bukry, D., 1981, Synthesis of silicoflagellate stratigraphy for maestrichtian to quaternary marine sediment, chap. of The Deep Sea Drilling Project: A Decade of Progress, v. 32, p. 433-444, https://doi.org/10.2110/pec.81.32.0433.","productDescription":"12 p.","startPage":"433","endPage":"444","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":372575,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bukry, David 0000-0003-4540-890X dbukry@usgs.gov","orcid":"https://orcid.org/0000-0003-4540-890X","contributorId":3550,"corporation":false,"usgs":true,"family":"Bukry","given":"David","email":"dbukry@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":782983,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}