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The geoid is becoming increasingly important in interpretation of global tectonics. Most of the topography of the earth is isostatically compensated, so removal of its effect from the geoid is appropriate before tectonic modeling. The oceanic trenches, however, are dynamically depressed features and cannot be isostatically compensated in the classical way. Continental topography compensated at 35 km gives intracontinental geoidal undulations of up to 15 m over mountain ranges in a spherical harmonic expansion to order and degree 22. Oceanic topography compensated at 40 km, reasonable for the thermally supported long wavelengths, matches the +10 m difference between old continents and old oceans in a detailed NASA/GSFC geoid. Removing the assumed compensation for the oceanic trenches leaves negative anomalies of up to 9 m amplitude caused by their uncompensated mass deficit. This mass deficit acts as a partial \"regional compensation\" for the excess mass of the subducting slabs, and partly explains why geoidal (and gravity) anomalies over the cold slabs are less than thermal models predict.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/GL009i001p00029","usgsCitation":"Chase, C., and McNutt, M.K., 1982, The Geoid: Effect of compensated topography and uncompensated oceanic trenches: Geophysical Research Letters, v. 9, no. 1, p. 29-32, https://doi.org/10.1029/GL009i001p00029.","productDescription":"4 p.","startPage":"29","endPage":"32","costCenters":[],"links":[{"id":343045,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"9","issue":"1","noUsgsAuthors":false,"publicationDate":"2012-12-07","publicationStatus":"PW","scienceBaseUri":"59536ee0e4b062508e3c7b19","contributors":{"authors":[{"text":"Chase, C.G.","contributorId":102965,"corporation":false,"usgs":true,"family":"Chase","given":"C.G.","email":"","affiliations":[],"preferred":false,"id":701470,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McNutt, Marcia K. 0000-0003-0117-7716 mcnutt@usgs.gov","orcid":"https://orcid.org/0000-0003-0117-7716","contributorId":327,"corporation":false,"usgs":true,"family":"McNutt","given":"Marcia","email":"mcnutt@usgs.gov","middleInitial":"K.","affiliations":[{"id":5066,"text":"Office of the Director USGS","active":true,"usgs":true}],"preferred":false,"id":701471,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70188986,"text":"70188986 - 1982 - Use of packrat middens to determine rates of cliff retreat in the eastern Grand Canyon, Arizona","interactions":[],"lastModifiedDate":"2020-10-21T15:57:23.856889","indexId":"70188986","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Use of packrat middens to determine rates of cliff retreat in the eastern Grand Canyon, Arizona","docAbstract":"

Packrat midden data can be used to calculate rates of cliff retreat by relating midden age to the distance between cliff face and midden. Regression analysis using 14 radiocarbon-dated packrat deposits from the Mississippian Redwall Limestone in the eastern Grand Canyon suggests that the Redwall has been retreating at an average rate of 0.45 m/103 14C yr. This rate of cliff retreat, which is comparable to other cliff-retreat rates reported from arid environments, implies that the Colorado River cut through the Redwall Limestone in the vicinity of Horseshoe Mesa about 3.7 m.y. B.P.

","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1982)10<597:UOPMTD>2.0.CO;2","usgsCitation":"Cole, K.L., and Mayer, L., 1982, Use of packrat middens to determine rates of cliff retreat in the eastern Grand Canyon, Arizona: Geology, v. 10, no. 11, p. 597-599, https://doi.org/10.1130/0091-7613(1982)10<597:UOPMTD>2.0.CO;2.","productDescription":"3 p.","startPage":"597","endPage":"599","costCenters":[],"links":[{"id":343072,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"Grand Canyon","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -114.99938964843749,\n 35.46961797120201\n ],\n [\n -111.302490234375,\n 35.46961797120201\n ],\n [\n -111.302490234375,\n 36.910372213522535\n ],\n [\n -114.99938964843749,\n 36.910372213522535\n ],\n [\n -114.99938964843749,\n 35.46961797120201\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"10","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59660d1de4b0d1f9f05cef29","contributors":{"authors":[{"text":"Cole, Kenneth L.","contributorId":48533,"corporation":false,"usgs":true,"family":"Cole","given":"Kenneth","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":702249,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mayer, Larry","contributorId":77936,"corporation":false,"usgs":true,"family":"Mayer","given":"Larry","affiliations":[],"preferred":false,"id":702250,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70188838,"text":"70188838 - 1982 - The Yellowstone-Snake River Plain seismic profiling experiment: Crustal structure of the Eastern Snake River Plain","interactions":[],"lastModifiedDate":"2017-06-26T11:13:55","indexId":"70188838","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"The Yellowstone-Snake River Plain seismic profiling experiment: Crustal structure of the Eastern Snake River Plain","docAbstract":"

Seismic refraction profiles recorded along the eastern Snake River Plain (ESRP) in southeastern Idaho during the 1978 Yellowstone-Snake River Plain cooperative seismic profiling experiment are interpreted to infer the crustal velocity and attenuation (Q-1) structure of the ESRP. Travel-time and synthetic seismogram modeling of a 250 km reversed refraction profile as well as a 100 km detailed profile indicate that the crust of the ESRP is highly anomalous. Approximately 3 to 6 km of volcanic rocks (with some interbedded sediments) overlie an upper-crustal layer (compressional velocity ≅6.1 km/s) which thins southwestward along the ESRP from a thickness of 10 km near Island Park Caldera to 2 to 3 km beneath the central and southwestern portions of the ESRP. An intermediate-velocity (≅6.5 km/s) layer extends from ≅10 to ≅20 km depth. A thick (≅22 km) lower crust of compressional velocity 6.8 km/s, a total crustal thickness of ≅42 km, and a Pnvelocity of ≅7.9 km/s is observed in the ESRP, similar to the western Snake River Plain and the Rocky Mountains Provinces. High attenuation is evident on the amplitude corrected seismic data due to low-Q values in the volcanic rocks (Qp = 20 to 200) and throughout the crust (Qp = 160 to 300). Based on these characteristics of the crustal structure and volcanic-age progression data, it is suggested that the ESRP has resulted from an intensive period of intrusion of mantle-derived basaltic magma into the upper crust generating explosive silicic volcanism and associated regional uplift and caldera collapse. This activity began about 15 m.y. ago in southwestern Idaho and has migrated northeast to its present position at Yellowstone. Subsequent cooling of the intruded upper crust results in the 6.5 km/s velocity intermediate layer. Crustal subsidence and periodic basaltic volcanism as represented by the ESRP complete the sequence of crustal evolution.

","language":"English","publisher":"Wiley","doi":"10.1029/JB087iB04p02597","usgsCitation":"Braile, L., Smith, R.B., Ansorge, J., Baker, M., Sparlin, M., Prodehl, C., Schilly, M., Healy, J.H., , M., and Olsen, K., 1982, The Yellowstone-Snake River Plain seismic profiling experiment: Crustal structure of the Eastern Snake River Plain: Journal of Geophysical Research B: Solid Earth, v. 87, no. B4, p. 2597-2609, https://doi.org/10.1029/JB087iB04p02597.","productDescription":"13 p.","startPage":"2597","endPage":"2609","costCenters":[],"links":[{"id":342866,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"87","issue":"B4","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"59521d2ae4b062508e3c36f1","contributors":{"authors":[{"text":"Braile, L.W.","contributorId":85332,"corporation":false,"usgs":true,"family":"Braile","given":"L.W.","email":"","affiliations":[],"preferred":false,"id":700633,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, R. B.","contributorId":64589,"corporation":false,"usgs":true,"family":"Smith","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":700634,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ansorge, J.","contributorId":38318,"corporation":false,"usgs":true,"family":"Ansorge","given":"J.","email":"","affiliations":[],"preferred":false,"id":700635,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Baker, M.R.","contributorId":193474,"corporation":false,"usgs":false,"family":"Baker","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":700636,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sparlin, M.A.","contributorId":193497,"corporation":false,"usgs":false,"family":"Sparlin","given":"M.A.","email":"","affiliations":[],"preferred":false,"id":700637,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Prodehl, C.","contributorId":100376,"corporation":false,"usgs":true,"family":"Prodehl","given":"C.","affiliations":[],"preferred":false,"id":700638,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Schilly, M.M.","contributorId":193496,"corporation":false,"usgs":false,"family":"Schilly","given":"M.M.","email":"","affiliations":[],"preferred":false,"id":700639,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Healy, J. H.","contributorId":48968,"corporation":false,"usgs":true,"family":"Healy","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":700640,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":" Mueller","contributorId":19328,"corporation":false,"usgs":true,"given":"Mueller","email":"","affiliations":[],"preferred":false,"id":700641,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Olsen, K.H.","contributorId":95201,"corporation":false,"usgs":true,"family":"Olsen","given":"K.H.","email":"","affiliations":[],"preferred":false,"id":700642,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}} ,{"id":70188843,"text":"70188843 - 1982 - Regional ground-water flow concepts in the United States: Historical perspective","interactions":[],"lastModifiedDate":"2019-12-05T10:16:10","indexId":"70188843","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3459,"text":"Special Paper of the Geological Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Regional ground-water flow concepts in the United States: Historical perspective","docAbstract":"

A number of important ideas, developed during the past 100 years, form the framework of the present understanding of regional ground-water flow. The most important of these ideas are:

  1. Differences in topographic elevation provide the principal driving force for regional flow.

  2. Flow through confining layers forms an essential element of regional flow systems.

  3. Chemical evolution within the flow systems can be used to understand the flow.

  4. Moving ground water is an efficient transport mechanism for heat within the Earth.

  5. We trace the evolution of these ideas in the United States and demonstrate their influence on the present-day understanding of flow systems with examples taken primarily from the American literature.

","language":"English","publisher":"Geological Society of America","doi":"10.1130/SPE189-p295","issn":"00721077","usgsCitation":"Bredehoeft, J., Back, W., and Hanshaw, B., 1982, Regional ground-water flow concepts in the United States: Historical perspective: Special Paper of the Geological Society of America, v. 189, p. 295-316, https://doi.org/10.1130/SPE189-p295.","productDescription":"12 p.","startPage":"295","endPage":"316","costCenters":[],"links":[{"id":342864,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States 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Navarin Basin, scheduled for leasing in 1984 (OCS sale 83), may contain vast accumulations of oil and gas. Several geologic and oceanographic processes that may be active in and around Navarin Basin province could be hazardous to commercial development. These potential hazards include submarine slides; sea-floor instability resulting from disturbance of gas-charged sediment; sediment transport and erosion caused by storm waves, tsunamis, internal waves, or bottom currents; pack ice; and active faults and ground motion.

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Elements other than organically derived and bound C, H, N, O, and S constitute mineral matter in coal. Mineral matter may consist of discrete minerals such as calcite, quartz, clays, and pyrite, and/or organic compounds that contain organically bonded elements such as Ca and CI. Processes that may affect the association and content of mineral matter are operable from the initial peat-forming stage to the time of utilization of the coal. However, the objective of this paper is to discuss some of the various geologic processes that may influence content and associations in unmined coal.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Atomic and Nuclear Methods in Fossil Energy Research","language":"English","publisher":"Springer","doi":"10.1007/978-1-4684-4133-8_23","usgsCitation":"Cecil, C.B., Stanton, R., Dulong, F., and Renton, J., 1982, Geologic factors that control mineral matter in coal, chap. of Atomic and Nuclear Methods in Fossil Energy Research, p. 323-335, https://doi.org/10.1007/978-1-4684-4133-8_23.","productDescription":"13 p.","startPage":"323","endPage":"335","costCenters":[],"links":[{"id":343038,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59536ee1e4b062508e3c7b1d","contributors":{"editors":[{"text":"Filby, R.H.","contributorId":26071,"corporation":false,"usgs":true,"family":"Filby","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":701408,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Carpenter, Brett","contributorId":193685,"corporation":false,"usgs":false,"family":"Carpenter","given":"Brett","affiliations":[],"preferred":false,"id":701409,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Ragaini, Richard C.","contributorId":147012,"corporation":false,"usgs":false,"family":"Ragaini","given":"Richard","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":701410,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Cecil, C. B. 0000-0002-9032-1689","orcid":"https://orcid.org/0000-0002-9032-1689","contributorId":62204,"corporation":false,"usgs":true,"family":"Cecil","given":"C.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":701404,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stanton, R.W.","contributorId":19164,"corporation":false,"usgs":true,"family":"Stanton","given":"R.W.","email":"","affiliations":[],"preferred":false,"id":701405,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dulong, F.T.","contributorId":81490,"corporation":false,"usgs":true,"family":"Dulong","given":"F.T.","affiliations":[],"preferred":false,"id":701406,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Renton, J.J.","contributorId":38716,"corporation":false,"usgs":true,"family":"Renton","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":701407,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70195436,"text":"70195436 - 1982 - Northern East Pacific Rise: Magnetic anomaly and bathymetric framework","interactions":[],"lastModifiedDate":"2018-03-05T15:13:24","indexId":"70195436","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Northern East Pacific Rise: Magnetic anomaly and bathymetric framework","docAbstract":"

The oceanic crust in the eastern Pacific between 7°N and 30°N and east of 127°W contains a fairly complete history of the spreading centers associated with the East Pacific Rise since 25 m.y. B.P. (late Oligocene). In this paper, we have summarized the seafloor spreading magnetic-anomaly data and the bathymetric data that reflect the record of this tectonic history. The well-defined magnetic lineations north of the Clarion fracture zone, in the mouth of the Gulf of California, and on the east flank of the East Pacific Rise (EPR) are carefully examined and used to provide a guide for interpreting the spreading pattern between the Clarion and Clipperton fracture zones, southward of the Rivera fracture zone over the Mathematician Ridge, and over the entire EPR east of the Mathematician Ridge between the Rivera and Siqueiros fracture zones. The bathymetric data provide a trace of the fracture zone pattern in each of the above mentioned areas. The fracture zone bathymetry and the seafloor spreading magnetic lineations on the EPR south of the Rivera fracture zone have a distinctive fanning pattern caused by close poles of rotation and plate boundary reorganizations. All these data provide a good record of the plate reorganizations in the middle Miocene at magnetic anomaly 5 A time (12.5 to 11 m.y. B.P.), in the late Miocene at magnetic anomaly 3′−4 time (6.5 m.y. B.P.), and in the Pliocene at magnetic anomaly 2′−3 time (3.5 m.y. B.P.). Several abandoned spreading centers, including the Mathematician Ridge, were left behind as a result of these reorganizations. The Mathematician Ridge is shown to be a set of ridges and trough whose origin is related to the tectonic activity associated with each of the above mentioned reorganizations since anomaly 5A.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB087iB08p06725","usgsCitation":"Klitgord, K.D., and Mammerickx, J., 1982, Northern East Pacific Rise: Magnetic anomaly and bathymetric framework: Journal of Geophysical Research B: Solid Earth, v. 87, no. B8, p. 6725-6750, https://doi.org/10.1029/JB087iB08p06725.","productDescription":"26 p.","startPage":"6725","endPage":"6750","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":351623,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"87","issue":"B8","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5aff4241e4b0da30c1bfdac1","contributors":{"authors":[{"text":"Klitgord, Kim D.","contributorId":82307,"corporation":false,"usgs":true,"family":"Klitgord","given":"Kim","email":"","middleInitial":"D.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":728600,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mammerickx, Jacqueline","contributorId":202504,"corporation":false,"usgs":false,"family":"Mammerickx","given":"Jacqueline","email":"","affiliations":[],"preferred":false,"id":728601,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70187884,"text":"70187884 - 1982 - Recent trends in the west Greenland salmon fishery, and implications for Thick-billed Murres","interactions":[],"lastModifiedDate":"2017-05-24T17:50:58","indexId":"70187884","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Recent trends in the west Greenland salmon fishery, and implications for Thick-billed Murres","docAbstract":"

In the late 1960s and early 1970s, a high net-mortality of seabirds, particularly Thick-billed Murres (Uria lomvia), was associated with the west Greenland salmon fishery. Since 1972, the domestic fishery has been controlled by quotas and fishery opening dates and non-Greenlandic offshore drift-net fishery was phased out in 1975. These restrictions probably resulted in a substantial decrease in murre net-mortality. However, the Greenlandic fishery has changed considerably since 1972 when seabird bycatch was last examined in detail. Fishing vessels now use monofilament nylon nets almost exclusively; fishing effort has redistributed closer to murre breeding colonies and intensive drift-netting occurs offshore on the continental shelf. These factors, combined with a change in 1981 to a later fishing season have probably resulted in a renewal of significant murre net-morality at west Greenland.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Marine birds: Their feeding ecology and commercial fisheries relationships","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Special Symposium at the Eighth Annual Meeting of the Pacific Seabird Group","conferenceDate":"January 6-8, 1982","conferenceLocation":"Seattle, WA","language":"English","publisher":"Pacific Seabird Group","publisherLocation":"Little River, CA","isbn":"0-662-13311-0","usgsCitation":"Piatt, J.F., and Reddin, D.G., 1982, Recent trends in the west Greenland salmon fishery, and implications for Thick-billed Murres, in Marine birds: Their feeding ecology and commercial fisheries relationships, Seattle, WA, January 6-8, 1982, p. 208-210.","productDescription":"3 p.","startPage":"208","endPage":"210","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":341621,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":341754,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pacificseabirdgroup.org/psg-publications/symposia/marine-birds-their-feeding-ecology-and-commercial-fisheries-relationships/"}],"country":"Greenland","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -56.77734375,\n 71.01695975726373\n ],\n [\n -56.77734375,\n 70.95969716686398\n ],\n [\n -56.5576171875,\n 69.71810669906763\n ],\n [\n -56.1181640625,\n 68.70448628851169\n ],\n [\n -56.5576171875,\n 68.05688884134597\n ],\n [\n -56.689453125,\n 67.23806155909902\n ],\n [\n -56.3818359375,\n 65.94647177615738\n ],\n [\n -55.5029296875,\n 64.58618480339979\n ],\n [\n -55.107421875,\n 63.78248603116502\n ],\n [\n -52.8662109375,\n 62.63376960786813\n ],\n [\n -51.591796875,\n 61.312451574838214\n ],\n [\n -50.537109375,\n 60.673178565817715\n ],\n [\n -48.5595703125,\n 59.91097597079679\n ],\n [\n -46.3623046875,\n 59.512029386502704\n ],\n [\n -45.439453125,\n 59.62332522313024\n ],\n [\n -42.9345703125,\n 59.22093407615045\n ],\n [\n -42.3193359375,\n 61.10078883158897\n ],\n [\n -46.142578125,\n 61.87687021463305\n ],\n [\n -49.0869140625,\n 65.34851379240024\n ],\n [\n -49.7021484375,\n 68.12248241161676\n ],\n [\n -49.74609374999999,\n 70.94535555009823\n ],\n [\n -56.77734375,\n 71.01695975726373\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59269bd3e4b0b7ff9fb489e6","contributors":{"authors":[{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":695888,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reddin, David G.","contributorId":86707,"corporation":false,"usgs":true,"family":"Reddin","given":"David","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":695889,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70187882,"text":"70187882 - 1982 - Net-mortality of Common Murres and Atlantic Puffins in Newfoundland, 1951-81","interactions":[],"lastModifiedDate":"2017-05-24T17:48:01","indexId":"70187882","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Net-mortality of Common Murres and Atlantic Puffins in Newfoundland, 1951-81","docAbstract":"

Band recoveries (N = 315) over 26 years (1951-77) and three surveys of seabird bycatch in inshore fishing nets (1972, 1980-81) indicate that there has been a substantial net-mortality of Atlantic Puffins (Fratercula arctica) and Common Murres (Uria aalge) in Newfoundland coastal waters for the past 2 decades. Offshore (e.g. Grand Banks) gill-netting is limited, but some data suggest that murre net-mortality also occurs offshore at murre wintering areas. The vast majority of inshore net-mortality incidents occur over a 2-week period during the annual inshore spawning migration of capelin (Mallotus villosus), the major prey item for alcids in eastern Canada. Most murres (83%) were drowned in bottom-set (30-185 m) cod (Gadus morhua) gill nets, whereas more puffins were drowned in surface-set salmon (Salmo salar) gill nets or cod traps (55%) than in cod gillnets (45%). Murre band recoveries, colony censuses, and fishing-effort data suggest that at the second largest Common Murre colony in Newfoundland (Witless Bay Seabird Sanctuary, 77,000 breeding pairs) net-mortality was relatively low in the 1950s and early 1960s, but increased during the 1960s as the murre population grew in size and gill-net fishing effort increased in the colony area. By 1971, net-mortality accounted for 70% of murre band recoveries and calculations show that almost 30,000 breeding adults, or about 20% of the local breeding population, were drowned in that year. More reliable estimates of alcid bycatch in the Witless Bay area have been made on the basis of actual bycatch surveys. In 1972 about 20,000 adult murres, or 13% of the breeding stock, were killed in gill-nets. Net-mortality of murres apparently diminished through the 1970s as capelin stocks declined and fewer birds foraged in heavily netted inshore areas. Bycatch surveys in the Witless Bay area in 1980-81 revealed that, relative to previous years, murre net-mortality was greatly reduced and resulted in the loss of only 3-4% of the breeding stock. Even these low mortality rates, however, are cause for concern as adult murre mortality from all sources (including hunting, oil, and natural mortality) should not exceed 6-12% per annum to maintain a stable breeding population. Little is known about the magnitude of net-mortality at other major Newfoundland murre colonies though it is known to be a problem in all colony areas. The bycatch of adult Atlantic Puffins in the Witless Bay area was low compared to murre bycatch and in 3 years of study never exceeded 1.6% of the breeding population. During the 1970s, fishing effort increased five-fold in colony areas and we predict that if capelin spawning stocks return to early 1970s size, then net-mortality of puffins and murres in Newfoundland coastal regions will increase dramatically. Indeed, preliminary examination of 1982 capelin spawning and seabird bycatch data suggests that capelin were much more abundant inshore and murre bycatch increased two- to three-fold over 1981.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Marine birds: Their feeding ecology and commercial fisheries relationships","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Special Symposium at the Eighth Annual Meeting of the Pacific Seabird Group","conferenceDate":"January 6-8, 1982","conferenceLocation":"Seattle, WA","language":"English","publisher":"Pacific Seabird Group","publisherLocation":"Little River, CA","isbn":"0-662-13311-0","usgsCitation":"Piatt, J.F., Nettleship, D.N., and Threlfall, W., 1982, Net-mortality of Common Murres and Atlantic Puffins in Newfoundland, 1951-81, in Marine birds: Their feeding ecology and commercial fisheries relationships, Seattle, WA, January 6-8, 1982, p. 196-207.","productDescription":"12 p.","startPage":"196","endPage":"207","costCenters":[{"id":114,"text":"Alaska Science 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No abstract available.

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\"}}]}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5aff4240e4b0da30c1bfdabf","contributors":{"authors":[{"text":"O’Hara, C. J.","contributorId":32938,"corporation":false,"usgs":true,"family":"O’Hara","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":729406,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Oldale, R. N.","contributorId":92680,"corporation":false,"usgs":true,"family":"Oldale","given":"R.","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":729407,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Farquhar, O.C.","contributorId":202735,"corporation":false,"usgs":false,"family":"Farquhar","given":"O.C.","email":"","affiliations":[],"preferred":false,"id":729408,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70188675,"text":"70188675 - 1982 - Diatom biostratigraphy and paleoecology of the type section of the Luisian Stage, central California","interactions":[],"lastModifiedDate":"2022-10-31T15:25:45.709463","indexId":"70188675","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2735,"text":"Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Diatom biostratigraphy and paleoecology of the type section of the Luisian Stage, central California","docAbstract":"

Diatoms from the type section of the Luisian Stage in central California correlate with the lowermost part of the Denticulopsis lauta Zone through the lower part of subzone \"a\" of the Denticulopsis hustedtii-D. lauta Zone and are early Middle Miocene in age (about 6.0 to 14.0 Ma), Rocks assigned to the Luisian Stage by benthic foraminifers elsewhere in California exhibit little diachroneity in terms of diatom biostratigraphy, however, detailed studies of boundaries have not been done. Planktic diatoms dominate the assemblages, although an increase in benthic and tychopelagic diatoms in the overlying Hames Member of the Monterey Formation probably reflects shoaling. A cooling trend is suggested by diatom assemblages in the upper part of the section and is most marked near the top of the type Luisian. This cooling trend is supported by data elsewhere in the Pacific Basin as well as by both megafossil and microfossil studies in California. One hundred four diatom taxa are documented, and one new species, Coscinodiscus volutus Baldauf, is described.

","language":"English","publisher":"Micropaleontology Press","usgsCitation":"Baldauf, J.G., and Barron, J.A., 1982, Diatom biostratigraphy and paleoecology of the type section of the Luisian Stage, central California: Micropaleontology, v. 28, no. 1.","productDescription":"26 p.","startPage":"84","costCenters":[],"links":[{"id":408886,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://www.micropress.org/microaccess/micropaleontology/issue-28/article-160"},{"id":342697,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","county":"San Luis Obispbo County","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"id\":224,\"properties\":{\"name\":\"San Luis 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Jack G.","contributorId":97173,"corporation":false,"usgs":true,"family":"Baldauf","given":"Jack","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":698871,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"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":698872,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70188667,"text":"70188667 - 1982 - Source parameters of the 1980 Mammoth Lakes, California, earthquake sequence","interactions":[],"lastModifiedDate":"2017-06-20T17:19:06","indexId":"70188667","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Source parameters of the 1980 Mammoth Lakes, California, earthquake sequence","docAbstract":"

From the more than 1500 Mammoth Lakes earthquakes recorded on three-component digital seismographs (Spudich et al., 1981), 150 were used in an analysis of the locations, mechanism, and source parameters. A composite fault plane solution of nine earthquakes 3.9 ≤ M ≤ 5.1 defines a right-lateral strike slip mechanism on a steeply dipping nearly east-west plane striking S75°E or left-lateral strike slip on a nearly north-south plane striking N10°E. Vertical cross sections of well-located aftershocks indicate possibly three east-west planes that coincide with the locations of the four largest earthquakes with ML ≥ 6.0. Using the spectral analysis of S waves (Brune, 1970), source parameters for 67 earthquakes were determined. Forty-eight had magnitudes greater than or equal to 3.0. Seismic moments ranged from 9.20×1018 dyn cm to 2.33×1024 dyn cm. Earthquakes with seismic moment greater than about 1.0×1021 dyn cm had nearly constant stress drops (≃ 50 bars); earthquakes with seismic moment less than about 1.0×1021 dyn cm had stress drops that apparently decrease as seismic moment decreases.

","language":"English","publisher":"John Wiley & Sons","doi":"10.1029/JB087iB06p04595","usgsCitation":"Archuleta, R.J., Cranswick, E., Mueller, C., and Spudich, P., 1982, Source parameters of the 1980 Mammoth Lakes, California, earthquake sequence: Journal of Geophysical Research B: Solid Earth, v. 87, no. 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Ralph J.","contributorId":77801,"corporation":false,"usgs":true,"family":"Archuleta","given":"Ralph","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":698850,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cranswick, Edward","contributorId":15611,"corporation":false,"usgs":true,"family":"Cranswick","given":"Edward","email":"","affiliations":[],"preferred":false,"id":698851,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mueller, Charles","contributorId":57178,"corporation":false,"usgs":true,"family":"Mueller","given":"Charles","affiliations":[],"preferred":false,"id":698852,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Spudich, Paul","contributorId":54579,"corporation":false,"usgs":true,"family":"Spudich","given":"Paul","affiliations":[],"preferred":false,"id":698853,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70193890,"text":"70193890 - 1982 - Toxaphene residues in fish: Identification, quantification, and confirmation at part per billion levels","interactions":[],"lastModifiedDate":"2017-11-07T11:49:13","indexId":"70193890","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Toxaphene residues in fish: Identification, quantification, and confirmation at part per billion levels","docAbstract":"

No abstract available.

","language":"English","publisher":"ACS Publications","doi":"10.1021/es00100a003","usgsCitation":"Ribick, M.A., Dubay, G.R., Petty, J.D., Stalling, D.L., and Schmitt, C.J., 1982, Toxaphene residues in fish: Identification, quantification, and confirmation at part per billion levels: Environmental Science & Technology, v. 16, no. 6, p. 310-318, https://doi.org/10.1021/es00100a003.","productDescription":"9 p.","startPage":"310","endPage":"318","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":348364,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"6","noUsgsAuthors":false,"publicationDate":"2002-05-01","publicationStatus":"PW","scienceBaseUri":"5a61445ae4b06e28e9c25f5f","contributors":{"authors":[{"text":"Ribick, M. A.","contributorId":82367,"corporation":false,"usgs":true,"family":"Ribick","given":"M.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":720881,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dubay, George R.","contributorId":200065,"corporation":false,"usgs":false,"family":"Dubay","given":"George","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":720882,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Petty, Jimmie D.","contributorId":175402,"corporation":false,"usgs":false,"family":"Petty","given":"Jimmie","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":720883,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Stalling, David L.","contributorId":176670,"corporation":false,"usgs":false,"family":"Stalling","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":720884,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schmitt, Christopher J. 0000-0001-6804-2360 cjschmitt@usgs.gov","orcid":"https://orcid.org/0000-0001-6804-2360","contributorId":491,"corporation":false,"usgs":true,"family":"Schmitt","given":"Christopher","email":"cjschmitt@usgs.gov","middleInitial":"J.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":720885,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70188756,"text":"70188756 - 1982 - Kinematic evolution of the junction of the San Andreas, Garlock, and Big Pine faults, California","interactions":[],"lastModifiedDate":"2020-10-21T15:44:58.054907","indexId":"70188756","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Kinematic evolution of the junction of the San Andreas, Garlock, and Big Pine faults, California","docAbstract":"

If the San Andreas fault with about 300 km of right slip, the Carlock fault with about 60 km of left slip, and the Big Pine fault with about 15 km of left slip are considered to have been contemporaneously active, a space problem at their high-angle junctions becomes apparent. Large crustal masses converge in the area of the junctions as a result of the simultaneous large displacements on the faults. We present here a model in which an early straight north-northwest–trending San Andreas deforms to its present bent configuration in response to a westward displacement of crust north of the Garlock fault. During this deformation, the crust north of the Garlock in the vicinity of the junction undergoes north-south shortening, while the fault junction migrates along the trace of the San Andreas fault to the southeast relative to its original position. As a result of this migration, the Mojave area is displaced to the east relative to the original junction position. We suggest a similar history in mirror image for the Big Pine fault and the areas of crust adjacent to it.

","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1982)10<358:KEOTJO>2.0.CO;2","usgsCitation":"Bohannon, R.G., and Howell, D.G., 1982, Kinematic evolution of the junction of the San Andreas, Garlock, and Big Pine faults, California: Geology, v. 10, no. 7, p. 358-363, https://doi.org/10.1130/0091-7613(1982)10<358:KEOTJO>2.0.CO;2.","productDescription":"6 p.","startPage":"358","endPage":"363","costCenters":[],"links":[{"id":342792,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Big Pine fault, Garlock fault, San Andreas 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\"}}]}","volume":"10","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"594cd740e4b062508e3951e3","contributors":{"authors":[{"text":"Bohannon, Robert G. rbohannon@usgs.gov","contributorId":2255,"corporation":false,"usgs":true,"family":"Bohannon","given":"Robert","email":"rbohannon@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":699733,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Howell, David G.","contributorId":59874,"corporation":false,"usgs":true,"family":"Howell","given":"David","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":699734,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70188755,"text":"70188755 - 1982 - Citation analysis of principal sedimentology journals; discussion","interactions":[],"lastModifiedDate":"2017-06-22T16:50:57","indexId":"70188755","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2451,"text":"Journal of Sedimentary Research","onlineIssn":"1938-3681","printIssn":"1527-1404","active":true,"publicationSubtype":{"id":10}},"title":"Citation analysis of principal sedimentology journals; discussion","docAbstract":"

No abstract available

","language":"English","publisher":"Society of Economic Paleontologists and Mineralogists","doi":"10.1306/212F800D-2B24-11D7-8648000102C1865D","usgsCitation":"Bodine, M., 1982, Citation analysis of principal sedimentology journals; discussion: Journal of Sedimentary Research, v. 52, no. 2, p. 693-693, https://doi.org/10.1306/212F800D-2B24-11D7-8648000102C1865D.","productDescription":"1 p.","startPage":"693","endPage":"693","costCenters":[],"links":[{"id":342791,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"52","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"594cd741e4b062508e3951e6","contributors":{"authors":[{"text":"Bodine, Marc W.","contributorId":74765,"corporation":false,"usgs":true,"family":"Bodine","given":"Marc W.","affiliations":[],"preferred":false,"id":699732,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70188680,"text":"70188680 - 1982 - Marine ice-pushed boulder ridge, Beaufort Sea, Alaska","interactions":[],"lastModifiedDate":"2017-06-21T09:48:11","indexId":"70188680","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":894,"text":"Arctic","active":true,"publicationSubtype":{"id":10}},"title":"Marine ice-pushed boulder ridge, Beaufort Sea, Alaska","docAbstract":"
A steep-faced boulder ridge up to 4m high by 300m long was encountered along the arctic coast east of Prudhoe Bay, Alaska, in the summer of 1979. Marine occurrences of similar ridges are rare. Since ice-push sorts cobble- and boulder-sized material in the construction of a ridge, recent onshore excursions of ice due to wind stress on the fast ice are believed to be responsible for building the boulder ridge. Ice push is a mechanism that preferentially sorts cobble- and boulder-sized material from 1-2m water depths and that forms boulder ridges in areas of high boulder concentrations.
","language":"English","publisher":"Arctic Institute of North America","doi":"10.14430/arctic2330","usgsCitation":"Barnes, P.W., 1982, Marine ice-pushed boulder ridge, Beaufort Sea, Alaska: Arctic, v. 35, no. 2, p. 312-316, https://doi.org/10.14430/arctic2330.","productDescription":"5 p.","startPage":"312","endPage":"316","costCenters":[],"links":[{"id":480249,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.14430/arctic2330","text":"Publisher Index Page"},{"id":342702,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Canning River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -147.43652343749997,\n 68.86351700272681\n ],\n [\n -141.009521484375,\n 68.86351700272681\n ],\n [\n -141.009521484375,\n 70.91304887381109\n ],\n [\n -147.43652343749997,\n 70.91304887381109\n ],\n [\n -147.43652343749997,\n 68.86351700272681\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"35","issue":"2","noUsgsAuthors":false,"publicationDate":"1982-01-01","publicationStatus":"PW","scienceBaseUri":"594b85b7e4b062508e382bc0","contributors":{"authors":[{"text":"Barnes, Peter W.","contributorId":6042,"corporation":false,"usgs":true,"family":"Barnes","given":"Peter","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":698878,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70188754,"text":"70188754 - 1982 - Miocene actinommid Radiolaria from the equatorial Pacific","interactions":[],"lastModifiedDate":"2017-06-22T16:44:50","indexId":"70188754","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2735,"text":"Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Miocene actinommid Radiolaria from the equatorial Pacific","docAbstract":"

Actinommids (spumellarian Radiolaria) are a group of microfossils in which taxonomy and phylogeny hitherto have been based on features of morphology that change with the growth of individuals. To make Miocene actinommids from the equatorial Pacific useful in biostratigraphy, paleocenography, and paleoecology, ontogenetically invariant morphological features can be analyzed by methods of numerical taxonomy to group the specimens into genera, which are further subdivided into species by visual comparison. According to these criteria, 31 species, 18 of which are new, are recognized in the Late Miocene section of DSDP Sites 77 and 289, and an informal revision of actinommid higher taxa is tentatively proposed.

","language":"English","publisher":"Micropaleontology Press","usgsCitation":"Blueford, J.R., 1982, Miocene actinommid Radiolaria from the equatorial Pacific: Micropaleontology, v. 28, no. 2, p. 189-213.","productDescription":"25 p.","startPage":"189","endPage":"213","costCenters":[],"links":[{"id":342790,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":342789,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://micropal.geoscienceworld.org/content/28/2/189"}],"volume":"28","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"594cd741e4b062508e3951ed","contributors":{"authors":[{"text":"Blueford, J. R.","contributorId":69563,"corporation":false,"usgs":true,"family":"Blueford","given":"J.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":699731,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70195419,"text":"70195419 - 1982 - Paleo-oceanography of the Norwegian Sea during the past 130,000 years: Coccolithophorid and foraminferal data","interactions":[],"lastModifiedDate":"2018-02-14T08:28:36","indexId":"70195419","displayToPublicDate":"1982-12-31T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1068,"text":"Boreas","active":true,"publicationSubtype":{"id":10}},"title":"Paleo-oceanography of the Norwegian Sea during the past 130,000 years: Coccolithophorid and foraminferal data","docAbstract":"

Faunal, floral and sedimentological properties of Norwegian Sea core V27-86 were examined in order to reconstruct the paleo-oceanographic history of this region. Downcore variations in the relative abundance of three microfossil groups and several sediment properties exhibit three different climate response patterns (CRP). Each pattern is judged to represent the response of a different part of the climate system. The covariance patterns among coccoliths, henthic foraminifera, and other properties suggest that the Norwegian Sea has been ice-free and productive during the present interhlacial. the penultimate interglacial (isotopic-stage se) and at least partially ice-free during an intermediate climatic regime (stages sa-d). A maximum change in these measures occurs at the boundary between isotopic stage 5a (an intermediate climatic regime)and isotopic stage 4 (a glacial climatic regime). In contrast, planktic foraminiferal assemblages and oxygen isotope measurements on planktic foraminifera show a major change at the end of stage 5e (the penultimate interglacial). The contrasting behavior of these two sets of observations is explained by a model which postulates a low-salinity surface layer 115,000 to 75,000 years ago (stages 5a-d).

","language":"English","publisher":"Wiley","doi":"10.1111/j.1502-3885.1982.tb00516.x","usgsCitation":"Belanger, P., 1982, Paleo-oceanography of the Norwegian Sea during the past 130,000 years: Coccolithophorid and foraminferal data: Boreas, v. 11, no. 1, p. 29-36, https://doi.org/10.1111/j.1502-3885.1982.tb00516.x.","productDescription":"8 p.","startPage":"29","endPage":"36","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":351584,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Norwegian Sea","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -30.937499999999996,\n 52.802761415419674\n ],\n [\n 43.9453125,\n 52.802761415419674\n ],\n [\n 43.9453125,\n 77.8418477505252\n ],\n [\n -30.937499999999996,\n 77.8418477505252\n ],\n [\n -30.937499999999996,\n 52.802761415419674\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"11","issue":"1","noUsgsAuthors":false,"publicationDate":"2008-01-16","publicationStatus":"PW","scienceBaseUri":"5aff4241e4b0da30c1bfdac3","contributors":{"authors":[{"text":"Belanger, P.E.","contributorId":51074,"corporation":false,"usgs":true,"family":"Belanger","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":728519,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70,"text":"70 - 1982 - The Georges Bank monitoring program: analysis of trace metals in bottom sediments","interactions":[],"lastModifiedDate":"2017-11-05T12:02:14","indexId":"70","displayToPublicDate":"1982-12-28T12:34:57","publicationYear":"1982","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"The Georges Bank monitoring program: analysis of trace metals in bottom sediments","docAbstract":"No abstract available.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70","usgsCitation":"Bothner, M., 1982, The Georges Bank monitoring program: analysis of trace metals in bottom sediments, 62 p., https://doi.org/10.3133/70.","productDescription":"62 p.","numberOfPages":"62","costCenters":[],"links":[{"id":291604,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"country":"United States","otherGeospatial":"Georges Bank","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -70.4304,39.8841 ], [ -70.4304,42.1308 ], [ -66.4237,42.1308 ], [ -66.4237,39.8841 ], [ -70.4304,39.8841 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53e09e60e4b0beb42bdca4d6","contributors":{"authors":[{"text":"Bothner, Michael H. mbothner@usgs.gov","contributorId":139855,"corporation":false,"usgs":true,"family":"Bothner","given":"Michael H.","email":"mbothner@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":141907,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70207330,"text":"70207330 - 1982 - Iridium abundance measurements across the Cretaceous/Tertiary boundary in the San Juan and Raton Basins of northern New Mexico","interactions":[],"lastModifiedDate":"2020-06-03T13:41:50.212248","indexId":"70207330","displayToPublicDate":"1982-12-17T10:27:57","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1727,"text":"GSA Special Papers","active":true,"publicationSubtype":{"id":10}},"title":"Iridium abundance measurements across the Cretaceous/Tertiary boundary in the San Juan and Raton Basins of northern New Mexico","docAbstract":"

During the past year we have been measuring trace element abundances and searching for anomalously high iridium (Ir) concentrations in continental sedimentary rocks that span the Cretaceous-Tertiary boundary in the Raton and San Juan Basins of northern New Mexico and southern Colorado. Using neutron activation and radiochemical separations, we have identified anomalous concentrations of Ir in samples from two sites in the Raton Basin: in a drill core at York Canyon, about 50 km west of Raton, New Mexico, and in a road cut near the city of Raton. In both cases the anomaly occurs essentially at the base of thin coal beds, across a thickness span of only a few cm and at the same level at which several species of Cretaceous pollen become extinct and the ratio of angiosperm pollen to fern spores drops sharply. The Ir surface density ranges from 8 to 40 × 10−9 g cm−2. In the York Canyon core the Ir concentration reaches a value of 5.6 × 10−9 g/g of rock over a local background of about 10−11 g/g; the Pt abundance distribution is similar to that for Ir, while Au reaches its maximum concentration about 10 cm below the Ir peak. Se, V, Cr, Mn, Co, and Zn are about two-fold more abundant at the anomaly zone than in adjacent zones, and mass spectrometric 244Pu analysis showed the 244Pu/Ir atom ratio ⩽ 1 × 107. In the San Juan Basin we have located a small Ir spike (55 × 10−12 g/g over a local background of 8 × 10−12 g/g) that is accompanied by high concentrations of Co and Mn. It is thought to be due to geochemical enrichment processes.

","language":"English","publisher":"GSA","doi":"10.1130/SPE190-p423","usgsCitation":"Orth, C.J., Gilmore, J.S., Knight, J., Tschudy, R., Pillmore, C.L., and Fassett, J.E., 1982, Iridium abundance measurements across the Cretaceous/Tertiary boundary in the San Juan and Raton Basins of northern New Mexico: GSA Special Papers, v. 190, p. 423-433, https://doi.org/10.1130/SPE190-p423.","productDescription":"11 p.","startPage":"423","endPage":"433","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":370341,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado, New Mexico","otherGeospatial":"Raton Basin, San Juan Basin","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -108.9129638671875,\n 35.96911507577482\n ],\n [\n -107.0562744140625,\n 35.96911507577482\n ],\n [\n -107.0562744140625,\n 37.4530574713902\n ],\n [\n -108.9129638671875,\n 37.4530574713902\n ],\n [\n -108.9129638671875,\n 35.96911507577482\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -105.13916015625,\n 36.01356058518153\n ],\n [\n -103.82080078125,\n 36.01356058518153\n ],\n [\n -103.82080078125,\n 37.54457732085582\n ],\n [\n -105.13916015625,\n 37.54457732085582\n ],\n [\n -105.13916015625,\n 36.01356058518153\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"190","noUsgsAuthors":false,"publicationDate":"1982-01-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Orth, C. J.","contributorId":90034,"corporation":false,"usgs":true,"family":"Orth","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":777727,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gilmore, J. S.","contributorId":72927,"corporation":false,"usgs":true,"family":"Gilmore","given":"J.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":777728,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Knight, J.D.","contributorId":46688,"corporation":false,"usgs":true,"family":"Knight","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":777729,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Tschudy, R.H.","contributorId":55023,"corporation":false,"usgs":true,"family":"Tschudy","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":777730,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pillmore, C. L.","contributorId":46093,"corporation":false,"usgs":true,"family":"Pillmore","given":"C.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":777731,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Fassett, James E. jfassett@usgs.gov","contributorId":73590,"corporation":false,"usgs":true,"family":"Fassett","given":"James","email":"jfassett@usgs.gov","middleInitial":"E.","affiliations":[{"id":165,"text":"Central Energy Resources Team","active":false,"usgs":true}],"preferred":false,"id":777732,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70011574,"text":"70011574 - 1982 - Observations of strain accumulation across the San Andreas fault near Palmdale, California, with a two-color geodimeter","interactions":[],"lastModifiedDate":"2025-12-11T16:05:50.092931","indexId":"70011574","displayToPublicDate":"1982-12-17T00:00:00","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Observations of strain accumulation across the San Andreas fault near Palmdale, California, with a two-color geodimeter","docAbstract":"

Two-color laser ranging measurements during a 15-month period over a geodetic network spanning the San Andreas fault near Palmdale, California, indicate that the crust expands and contracts aseismically in episodes as short as 2 weeks. Shear strain parallel to the fault has accumulated monotonically since November 1980, but at a variable rate. Improvements in measurement precision and temporal resolution over those of previous geodetic studies near Palmdale have resulted in the definition of a time history of crustal deformation that is much more complex than formerly realized.

","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.218.4578.1217","issn":"00368075","usgsCitation":"Langbein, J.O., Linker, M.F., McGarr, A., and Slater, L., 1982, Observations of strain accumulation across the San Andreas fault near Palmdale, California, with a two-color geodimeter: Science, v. 218, no. 4578, p. 1217-1219, https://doi.org/10.1126/science.218.4578.1217.","productDescription":"3 p.","startPage":"1217","endPage":"1219","costCenters":[],"links":[{"id":221301,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","city":"Palmdale","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -118.30562871689312,\n 34.68870717706383\n ],\n [\n -118.30562871689312,\n 34.4219217636459\n ],\n [\n -117.83870452454481,\n 34.4219217636459\n ],\n [\n -117.83870452454481,\n 34.68870717706383\n ],\n [\n -118.30562871689312,\n 34.68870717706383\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"218","issue":"4578","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6abfe4b0c8380cd7431d","contributors":{"authors":[{"text":"Langbein, J. O.","contributorId":39404,"corporation":false,"usgs":true,"family":"Langbein","given":"J.","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":361436,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Linker, Mark F.","contributorId":36283,"corporation":false,"usgs":true,"family":"Linker","given":"Mark","middleInitial":"F.","affiliations":[],"preferred":false,"id":361435,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McGarr, Art 0000-0001-9769-4093","orcid":"https://orcid.org/0000-0001-9769-4093","contributorId":43491,"corporation":false,"usgs":true,"family":"McGarr","given":"Art","affiliations":[],"preferred":false,"id":361437,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Slater, L.E.","contributorId":35063,"corporation":false,"usgs":true,"family":"Slater","given":"L.E.","email":"","affiliations":[],"preferred":false,"id":361434,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70207172,"text":"70207172 - 1982 - Triggering of large earthquakes by magma-chamber inflation, Izu Peninsula (Japan)","interactions":[],"lastModifiedDate":"2020-06-01T12:31:49.611074","indexId":"70207172","displayToPublicDate":"1982-12-11T11:34:14","publicationYear":"1982","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Triggering of large earthquakes by magma-chamber inflation, Izu Peninsula (Japan)","docAbstract":"

A close spatial and temporal association between three aseismic uplift episodes and subsequent large (M ≈ 7) earthquakes on the Izu Peninsula, Japan, suggests a causal relation. Quaternary geology, as well as studies by other workers, indicates a volcanic origin for the observed uplift, and we use a simple inflation model constrained by leveling data to compute the expected increments in normal and shear stress across faults that ruptured in the earthquakes. Using a Mohr-Coulomb criterion, we find that in two cases out of three, stress changes induced by inflation are in the correct sense to trigger failure. Although changes are no more than a few bars, they represent the equivalent of several decades to a century of secular stress buildup.

","language":"English","publisher":"GSA","doi":"10.1130/0091-7613(1982)10<637:TOLEBM>2.0.CO;2","usgsCitation":"Thatcher, W.R., and Savage, J.C., 1982, Triggering of large earthquakes by magma-chamber inflation, Izu Peninsula (Japan): Geology, v. 10, no. 12, p. 637-640, https://doi.org/10.1130/0091-7613(1982)10<637:TOLEBM>2.0.CO;2.","productDescription":"4 p.","startPage":"637","endPage":"640","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":370154,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Japan","otherGeospatial":"Izu Peninsula","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n 138.22723388671875,\n 34.53597500508991\n ],\n [\n 139.735107421875,\n 34.53597500508991\n ],\n [\n 139.735107421875,\n 35.55457449014312\n ],\n [\n 138.22723388671875,\n 35.55457449014312\n ],\n [\n 138.22723388671875,\n 34.53597500508991\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"10","issue":"12","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":777147,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Savage, James C. 0000-0002-5114-7673 jasavage@usgs.gov","orcid":"https://orcid.org/0000-0002-5114-7673","contributorId":2412,"corporation":false,"usgs":true,"family":"Savage","given":"James","email":"jasavage@usgs.gov","middleInitial":"C.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":777148,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ]}