{"pageNumber":"5050","pageRowStart":"126225","pageSize":"25","recordCount":165579,"records":[{"id":70012433,"text":"70012433 - 1980 - Sediment transport in Norton Sound, Alaska","interactions":[],"lastModifiedDate":"2024-10-11T15:35:55.48006","indexId":"70012433","displayToPublicDate":"1980-05-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Sediment transport in Norton Sound, Alaska","docAbstract":"

The Yukon River, the largest single source of Bering Sea sediment, delivers > 95% of its sediment load at the southwest comer of Norton Sound during the ice-free months of late May through October. During this period, surface winds in the northern Bering Sea area are generally light from the south and southwest, and surface waves are not significant. Although wind stress may cause some transport of low-density turbid surface water into the head of Norton Sound, the most significant transport of Yukon River suspended matter occurs within advective currents flowing north across the outer part of the sound. The thickest accumulations of modern Yukon silt and very fine sand occur beneath this persistent current.

We monitored temporal variations in bottom currents, pressure, and suspended-matter concentrations within this major transport pathway for 80 days in the summer of 1977 using a Geological Processes Bottom Environmental (GEOPROBE) tripod system. The record reveals two distinctive periods of bottom flow and sediment transport: an initial 59 days (July 8–September 5) of fair-weather conditions, characterized by tidally dominated currents and relatively low, stable suspended-matter concentrations; and a 21-day period (September 5–September 26) during which several storms traversed the northern Bering Sea, mean suspended-matter concentrations near the bottom increased by a factor of five, and the earlier tidal dominance was overshadowed by wind-driven and oscillatory wave-generated currents.

Friction velocities (u*) at the GEOPROBE site were generally subcritical during the initial fair-weather period. In contrast, the 21-day stormy period was characterized by uFriction velocities (u*) at the GEOPROBE site were generally subcritical during the initial fair-weather period. In contrast, the 21-day stormy period was characterized by u*values that exceeded the critical level of 1.3 cm/s more than 60% of the time. The GEOPROBE data suggest that the very fine sand constituting about 50% of the sediment on the outer part of the Yukon prodelta is transported during a few late-summer and fall storms each year. A conservative estimate shows that suspended-matter transport during the storms in September 1977 was equal to four months of fair-weather transport. values that exceeded the critical level of 1.3 cm/s more than 60% of the time. The GEOPROBE data suggest that the very fine sand constituting about 50% of the sediment on the outer part of the Yukon prodelta is transported during a few late-summer and fall storms each year. A conservative estimate shows that suspended-matter transport during the storms in September 1977 was equal to four months of fair-weather transport.

","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(80)90043-2","usgsCitation":"Drake, D., Cacchione, D., Muench, R., and Nelson, C., 1980, Sediment transport in Norton Sound, Alaska: Marine Geology, v. 36, no. 1-2, p. 97-126, https://doi.org/10.1016/0025-3227(80)90043-2.","productDescription":"30 p.","startPage":"97","endPage":"126","costCenters":[],"links":[{"id":222201,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Norton Sound","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -166.93816207810704,\n 65.1847517876121\n ],\n [\n -166.93816207810704,\n 62.997485781439735\n ],\n [\n -160.32671205235334,\n 62.997485781439735\n ],\n [\n -160.32671205235334,\n 65.1847517876121\n ],\n [\n -166.93816207810704,\n 65.1847517876121\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"36","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b89d9e4b08c986b316ee5","contributors":{"authors":[{"text":"Drake, D.E.","contributorId":48150,"corporation":false,"usgs":true,"family":"Drake","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":363567,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cacchione, D.A.","contributorId":65448,"corporation":false,"usgs":true,"family":"Cacchione","given":"D.A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":363568,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Muench, R.D.","contributorId":83270,"corporation":false,"usgs":true,"family":"Muench","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":363569,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nelson, C.H.","contributorId":88346,"corporation":false,"usgs":true,"family":"Nelson","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":363570,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70209771,"text":"70209771 - 1980 - Allochthonous Jurassic ophiolite in northwest Washington","interactions":[],"lastModifiedDate":"2020-04-24T19:36:33.816797","indexId":"70209771","displayToPublicDate":"1980-04-24T14:26:00","publicationYear":"1980","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":"Allochthonous Jurassic ophiolite in northwest Washington","docAbstract":"

Fragments of Jurassic ophiolite having U-Pb zircon ages narrowly grouped at 160 to 170 m.y. are widespread over parts of northwest Washington. The Haystack thrust fault is inferred to mark the base of the ophiolite in the San Juan Islands and adjacent Cascade foothills; other bodies of mafic and ultramafic rock in the western Cascades may be klippen of the Haystack thrust plate. The Haystack thrust fault is probably the structurally highest and possibly most extensive thrust yet recognized within a family of Late Cretaceous thrust faults in northwest Washington.

The ophiolite and its time of emplacement (bracketed between about 100 and 88 m.y.) suggest a similarity with the Coast Range thrust of California which thrust Upper Jurassic ophiolite and the Great Valley sedimentary sequence over the Franciscan assemblage. However, relations in the Cascades are complicated by the extraordinarily diverse character of lower plate rocks, of which very few resemble the Franciscan. We conclude that an original subduction system was modified by later tectonic activity so that a variety of terranes was juxtaposed as a family of rootless thrusts, with the ophiolite forming, at least in some areas, the uppermost structural unit. Perhaps the emplacement of Wrangellia, an allochthonous microcontinent west of the San Juan Islands, caused the thrusting.

","language":"English","publisher":"GSA","doi":"10.1130/0016-7606(1980)91<359:AJOINW>2.0.CO;2","usgsCitation":"Whetten, J.T., Zartman, R., Blakely, R.J., and Jones, D.L., 1980, Allochthonous Jurassic ophiolite in northwest Washington: GSA Bulletin, v. 91, no. 6, p. 359-368, https://doi.org/10.1130/0016-7606(1980)91<359:AJOINW>2.0.CO;2.","productDescription":"10 p.","startPage":"359","endPage":"368","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":374270,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Northwest Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.53027343749999,\n 48.100094697973795\n ],\n [\n -121.871337890625,\n 48.100094697973795\n ],\n [\n -121.871337890625,\n 48.90083790234091\n ],\n [\n -123.53027343749999,\n 48.90083790234091\n ],\n [\n -123.53027343749999,\n 48.100094697973795\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"91","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Whetten, John T.","contributorId":102444,"corporation":false,"usgs":true,"family":"Whetten","given":"John","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":787941,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zartman, R. E.","contributorId":15632,"corporation":false,"usgs":true,"family":"Zartman","given":"R. E.","affiliations":[],"preferred":false,"id":787942,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Blakely, Richard J. 0000-0003-1701-5236 blakely@usgs.gov","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":1540,"corporation":false,"usgs":true,"family":"Blakely","given":"Richard","email":"blakely@usgs.gov","middleInitial":"J.","affiliations":[{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":787943,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jones, David L.","contributorId":61925,"corporation":false,"usgs":true,"family":"Jones","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":787944,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70112924,"text":"70112924 - 1980 - Need for new sensors to map lithologic units","interactions":[],"lastModifiedDate":"2014-06-18T12:32:41","indexId":"70112924","displayToPublicDate":"1980-04-17T12:14:02","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Need for new sensors to map lithologic units","docAbstract":"

One of the most important contributions that remote sensing can make to mineral energy explorations to provide data from satellites to augment regional geological mapping. Geologic maps, which show information on the subsurface, are the main basis for formulating models of resource genesis that guide exploration. However, conventional compilation procedures are time-consuming and therefore often slow the pace of exploration, especially in large, inaccessible areas. Landsat Multispectral Scanner (MSS) images have been applied to a wide variety of specific geological problems, including discrimination of lithologic and delineation of previously unrecognized tectonic features. However, these lithologic distinctions are based on brightness, spectral reflectance, and, less commonly, the morphology of the unit, which in the wavelength region of MSS images are only rarely diagnostic of specific mineralogical content. Limonite is the only lithological material that can be identified be analyzing MSS spectral radiance.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"Rowan, L.C., 1980, Need for new sensors to map lithologic units: Sixth Annual Pecora Symposium and Exposition, p. 106-107.","productDescription":"2 p.","startPage":"106","endPage":"107","numberOfPages":"2","costCenters":[],"links":[{"id":288806,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7783e4b0abf75cf2c164","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509905,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Rowan, Lawrence C.","contributorId":58629,"corporation":false,"usgs":true,"family":"Rowan","given":"Lawrence","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":494945,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70112923,"text":"70112923 - 1980 - Detection and modeling of subsurface coal oxidation","interactions":[],"lastModifiedDate":"2014-06-18T12:13:03","indexId":"70112923","displayToPublicDate":"1980-04-16T12:07:48","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Detection and modeling of subsurface coal oxidation","docAbstract":"

The oxidation and sustained ignition of coal and coaly wastes within surface coal mine spoils in the southwestern U.S. have hampered the success of reclamation efforts at these locations. To assess better the magnitude, depth, geometry, and dynamics of the oxidation process thermal infrared remote sensing data have been used. Digital thermal imagery was found to be useful for this purpose and was integrated with finite different heat transfer models to yield predictions of several characteristics of the thermal source. In addition to thermal infrared imagery, aerial color and false color infrared imagery were found to provide useful information for the interpretation of oxidation phenomena by means of variations in surface vegetation, color of the surface material, subsidence, etc. The combined use of thermal infrared imagery and thermal modeling techniques are well suited for use in exploration and interpretation of other thermal targets.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"Leonhart, L.S., and Rasmussen, W.O., 1980, Detection and modeling of subsurface coal oxidation: Sixth Annual Pecora Symposium and Exposition, p. 83-83.","productDescription":"1 p.","startPage":"83","endPage":"83","numberOfPages":"1","costCenters":[],"links":[{"id":288805,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7680e4b0abf75cf2bf72","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509904,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Leonhart, Leo S.","contributorId":77050,"corporation":false,"usgs":true,"family":"Leonhart","given":"Leo","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":494944,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rasmussen, William O.","contributorId":6376,"corporation":false,"usgs":true,"family":"Rasmussen","given":"William","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":494943,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70112914,"text":"70112914 - 1980 - Integration of geological, geochemical, and geophysical spatial data of the Cement oil field, Oklahoma, test site","interactions":[],"lastModifiedDate":"2014-06-18T11:34:49","indexId":"70112914","displayToPublicDate":"1980-04-16T11:29:37","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Integration of geological, geochemical, and geophysical spatial data of the Cement oil field, Oklahoma, test site","docAbstract":"

Measurement pertaining to geology, geochemistry, and geophysics of the Cement oil field, Oklahoma, test site were collected employing both airborne sensors and ground-based data collection. The measurements include: (1) airborne gamma-ray spectrometry (supplying bismuth 214, thalium 208, and potassium 40 gamma-ray intensities); (2) aeromagnetic survey data; (3) multi-frequency airborne resistivity survey data (supplying apparent electrical resistivity of near surface materials); (4) gravity data; (5) geological and topographic maps; and (6) image data from Landsat MSS and U-2 photography.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"Termain, P.A., Donovan, T.J., and Chavez, P.S., 1980, Integration of geological, geochemical, and geophysical spatial data of the Cement oil field, Oklahoma, test site: Sixth Annual Pecora Symposium and Exposition, p. 57-57.","productDescription":"1 p.","startPage":"57","endPage":"57","numberOfPages":"1","costCenters":[],"links":[{"id":288797,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oklahoma","otherGeospatial":"Cement Oil Field","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -95.9512937,36.034963 ], [ -95.9512937,36.0350408 ], [ -95.9512492,36.0350408 ], [ -95.9512492,36.034963 ], [ -95.9512937,36.034963 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7750e4b0abf75cf2c0f2","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509901,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Termain, Patricia A.","contributorId":12852,"corporation":false,"usgs":true,"family":"Termain","given":"Patricia","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":494914,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Donovan, Terrence J.","contributorId":71529,"corporation":false,"usgs":true,"family":"Donovan","given":"Terrence","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":494915,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chavez, Pat S.","contributorId":82308,"corporation":false,"usgs":true,"family":"Chavez","given":"Pat","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":494916,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70112911,"text":"70112911 - 1980 - Considerations for blending data from various sensors","interactions":[],"lastModifiedDate":"2014-06-18T11:26:44","indexId":"70112911","displayToPublicDate":"1980-04-16T10:58:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Considerations for blending data from various sensors","docAbstract":"

A project is being proposed at the EROS Data Center to blend the information from sensors aboard various satellites. The problems of, and considerations for, blending data from several satellite-borne sensors are discussed. System descriptions of the sensors aboard the HCMM, TIROS-N, GOES-D, Landsat 3, Landsat D, Seasat, SPOT, Stereosat, and NOSS satellites, and the quantity, quality, image dimensions, and availability of these data are summaries to define attributes of a multi-sensor satellite data base.

\n
\n

Unique configurations of equipment, storage, media, and specialized hardware to meet the data system requirement are described as well as archival media and improved sensors that will be on-line within the next 5 years. Definitions and rigor required for blending various sensor data are given. Problems of merging data from the same sensor (intrasensor comparison) and from different sensors (intersensor comparison), the characteristics and advantages of cross-calibration of data, and integration of data into a product matrix field are addressed. Data processing considerations as affected by formation, resolution, and problems of merging large data sets, and organization of data bases for blending data are presented. Examples utilizing GOES and Landsat data are presented to demonstrate techniques of data blending, and recommendations for future implementation of a set of standard scenes and their characteristics necessary for optimal data blending are discussed.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"Bauer, B.P., 1980, Considerations for blending data from various sensors: Sixth Annual Pecora Symposium and Exposition, p. 56-56.","productDescription":"1 p.","startPage":"56","endPage":"56","numberOfPages":"1","costCenters":[],"links":[{"id":288796,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7660e4b0abf75cf2bf50","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509900,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Bauer, Brian P.","contributorId":58946,"corporation":false,"usgs":true,"family":"Bauer","given":"Brian","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":494912,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70112909,"text":"70112909 - 1980 - Interpretation of long- and short-wavelength magnetic anomalies","interactions":[],"lastModifiedDate":"2014-06-18T10:57:11","indexId":"70112909","displayToPublicDate":"1980-04-15T10:40:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Interpretation of long- and short-wavelength magnetic anomalies","docAbstract":"

Magset was launched on October 30, 1979. More than a decade of examining existing data, devising appropriate models of the global magnetic field, and extending methods for interpreting long-wavelength magnetic anomalies preceded this launch

\n
\n

Magnetic data collected by satellite can be interrupted by using a method of analysis that quantitively describes the magnetic field resulting from three-dimensional geologic structures that are bounded by an arbitrary number of polygonal faces, Each face my have any orientation and three or more sides. At each point of the external field, the component normal to each face is obtained by using an expression for the solid angle subtended by a generalized polygon. The \"cross\" of tangential components are relatively easy to obtain for the same polygons.

\n
\n

No approximations have been made related to orbit height that restrict the dimensions of the polygons relative to the distance from the external field points. This permits the method to be used to model shorter wavelength anomalies obtained from aircraft or ground surveys.

\n
\n

The magnetic fields for all the structures considered are determine in the same rectangular coordinate system. The coordinate system is in depended from the orientation of geologic trends and permits multiple structures or bodies to be included in the same magnetic field calculations. This single reference system also simplified adjustments in position and direction to account for earth curvature in regional interpretation.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"DeNoyer, J.M., 1980, Interpretation of long- and short-wavelength magnetic anomalies: Sixth Annual Pecora Symposium and Exposition, p. 51-51.","productDescription":"1 p.","startPage":"51","endPage":"51","numberOfPages":"1","costCenters":[],"links":[{"id":288790,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7753e4b0abf75cf2c0f9","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509899,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"DeNoyer, John M.","contributorId":96271,"corporation":false,"usgs":true,"family":"DeNoyer","given":"John","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":494911,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70112908,"text":"70112908 - 1980 - Digital mapping of limonitic rocks by using Landsat MSS radio data","interactions":[],"lastModifiedDate":"2014-06-18T10:38:09","indexId":"70112908","displayToPublicDate":"1980-04-15T10:30:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Digital mapping of limonitic rocks by using Landsat MSS radio data","docAbstract":"

Color-ratio composite images of Landsat MSS (multi-spectral scanner) bands have been used by other workers to map the distribution of limonitic rocks in semi-arid and arid areas as possible indicators of hydrothermal alteration (Rowan et al, 1974). The images are particularly useful for broad overviews, but detailed analysis at large scales requires both numerical analysis of the ratio values to distinguish consistently among categories of limonitic rocks and a precise transfer of the data to large-scale base maps. Both requirements can be met by digital classification followed by a precise geometric registration of the classified data.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"Podwysocki, M.H., Segal, D.B., and Simpson, S., 1980, Digital mapping of limonitic rocks by using Landsat MSS radio data: Sixth Annual Pecora Symposium and Exposition, p. 49-51.","productDescription":"3 p.","startPage":"49","endPage":"51","numberOfPages":"3","costCenters":[],"links":[{"id":288779,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7683e4b0abf75cf2bf7f","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509898,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Podwysocki, Melvin H.","contributorId":60220,"corporation":false,"usgs":true,"family":"Podwysocki","given":"Melvin","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":494910,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Segal, Donald B.","contributorId":40223,"corporation":false,"usgs":true,"family":"Segal","given":"Donald","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":494908,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Simpson, Shirley","contributorId":48100,"corporation":false,"usgs":true,"family":"Simpson","given":"Shirley","affiliations":[],"preferred":false,"id":494909,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70112904,"text":"70112904 - 1980 - Airborne Fraunhofer line discriminator (FLD) luminescence imaging systems and its application to exploration problems","interactions":[],"lastModifiedDate":"2014-06-18T10:19:16","indexId":"70112904","displayToPublicDate":"1980-04-15T09:39:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Airborne Fraunhofer line discriminator (FLD) luminescence imaging systems and its application to exploration problems","docAbstract":"

Experiments with an imaging airborne Fraunhofer line discriminator (FLD) are being conducted to establish the feasibility of delineating the areal extent of luminescent materials on the earth's surface from aircraft and spacecraft. All luminescence measurements are related to a standard set of conditions with rhodamine wt dye used as a reference standard. The FLD has a minimum detectable rhodamine wt concentration of 0.1 parts per billion (ppb) at a signal-to-noise ratio of 5.0. Luminescence, when expressed in a signal-to-noise ratio (R) is related to equivalent ppb rhodamine wt through the relationship ppb=(0.1R-0.4). Luminescent materials imaged from an aircraft altitude of approximately 2400 m above terrain include fluorite in association with molybdenum, Pinenut Mountains, Nevada (R=62.0); mineralized playas, Claunch, New Mexico (R=960.0); uranium and vanadium-bearing outcrops, Big Indian Valley, Utah (R=105.0); uranophane sandstones, Sandia Mountains, New Mexico (R=60.0); phosphate outcrops, Pine Mountain, California (R=76.0); and marine oil slicks, Santa Barbara Channel, California (R=24.0). Correlation between the amount of fluorite in the rocks and soils of the Pinenut Mountains and luminescence, measured by the FLD, is as high as 0.88 at the 95 percent confidence level.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"Watson, R.D., Theisen, A.F., and Hemphill, W.R., 1980, Airborne Fraunhofer line discriminator (FLD) luminescence imaging systems and its application to exploration problems: Sixth Annual Pecora Symposium and Exposition, p. 40-42.","productDescription":"3 p.","startPage":"40","endPage":"42","numberOfPages":"3","costCenters":[],"links":[{"id":288766,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7622e4b0abf75cf2be9b","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509897,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Watson, Robert D.","contributorId":62605,"corporation":false,"usgs":true,"family":"Watson","given":"Robert","email":"","middleInitial":"D.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":494902,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Theisen, Arnold F.","contributorId":12052,"corporation":false,"usgs":true,"family":"Theisen","given":"Arnold","email":"","middleInitial":"F.","affiliations":[{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":false,"id":494900,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hemphill, William R.","contributorId":21970,"corporation":false,"usgs":true,"family":"Hemphill","given":"William","email":"","middleInitial":"R.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":494901,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70112903,"text":"70112903 - 1980 - Evaluation of new spectral bands for multi-spectral imaging: SMIRR aircraft test results","interactions":[],"lastModifiedDate":"2014-06-18T09:37:03","indexId":"70112903","displayToPublicDate":"1980-04-15T09:22:27","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Evaluation of new spectral bands for multi-spectral imaging: SMIRR aircraft test results","docAbstract":"

A 10-channel radiometer called the Shuttle Multispectral Infrared Radiometer (SMIRR) is scheduled to take data from orbit on the second shuttle orbital light test. As part of the instrument test sequence, a series of aircraft flights was carried out over 10 test areas in Utah and Nevada. Apart from vegetation, the materials exposed at the surface were volcanic sequences ranging from tuffs to basalts, areas of hydrothermally altered volcanic rocks, sedimentary sequences of sandstone and carbonate rocks, and alluvial cover.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"Goetz, A., and Rowan, L.C., 1980, Evaluation of new spectral bands for multi-spectral imaging: SMIRR aircraft test results: Sixth Annual Pecora Symposium and Exposition, p. 38-40.","productDescription":"3 p.","startPage":"38","endPage":"40","onlineOnly":"3","costCenters":[],"links":[{"id":288756,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae76ade4b0abf75cf2bfe0","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509896,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Goetz, Alexander F.H.","contributorId":89805,"corporation":false,"usgs":true,"family":"Goetz","given":"Alexander F.H.","affiliations":[],"preferred":false,"id":494899,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rowan, Lawrence C.","contributorId":58629,"corporation":false,"usgs":true,"family":"Rowan","given":"Lawrence","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":494898,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70112916,"text":"70112916 - 1980 - Airborne-biogeochemical survey test-case results","interactions":[],"lastModifiedDate":"2014-06-18T12:03:24","indexId":"70112916","displayToPublicDate":"1980-04-14T11:47:59","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3393,"text":"Sixth Annual Pecora Symposium and Exposition","active":true,"publicationSubtype":{"id":10}},"title":"Airborne-biogeochemical survey test-case results","docAbstract":"

Airborne spectroradiometer surveys over several forest-covered sulfide bodies indicate that mineralization has affected the overlying vegetation; anomalous spectral reflectivity properties can be detected in the vegetation using appropriate remote-sensing interments and data-reduction techniques. Mineralization induces subtle changes in the shape of the chlorophyll a and b absorption spectrum between 550 and 750 nm. The observed spectral variations appear specifically to be on the wings of the broad red chlorophyll bars, centered at about 680 nm.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Sixth Annual Pecora Symposium and Exposition","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Society of Exploration Geophysicists","publisherLocation":"Tulsa, OK","usgsCitation":"Collins, W.E., Chang, S., Raines, G.L., Canney, F.C., and Ashley, R., 1980, Airborne-biogeochemical survey test-case results: Sixth Annual Pecora Symposium and Exposition, p. 71-73.","productDescription":"3 p.","startPage":"71","endPage":"73","numberOfPages":"3","costCenters":[],"links":[{"id":288804,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53ae7624e4b0abf75cf2bea1","contributors":{"editors":[{"text":"Barringer, Anthony R.","contributorId":112053,"corporation":false,"usgs":true,"family":"Barringer","given":"Anthony","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":509903,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Collins, William E.","contributorId":37474,"corporation":false,"usgs":true,"family":"Collins","given":"William","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":494921,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chang, Sheng-Huei","contributorId":37256,"corporation":false,"usgs":true,"family":"Chang","given":"Sheng-Huei","email":"","affiliations":[],"preferred":false,"id":494920,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Raines, Gary L.","contributorId":48162,"corporation":false,"usgs":true,"family":"Raines","given":"Gary","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":494922,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Canney, Frank C.","contributorId":91251,"corporation":false,"usgs":true,"family":"Canney","given":"Frank","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":494923,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ashley, Roger","contributorId":7625,"corporation":false,"usgs":true,"family":"Ashley","given":"Roger","affiliations":[],"preferred":false,"id":494919,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70012278,"text":"70012278 - 1980 - Use of solid-state 13C NMR in structural studies of humic acids and humin from Holocene sediments","interactions":[],"lastModifiedDate":"2025-03-19T16:46:35.243737","indexId":"70012278","displayToPublicDate":"1980-04-04T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Use of solid-state 13C NMR in structural studies of humic acids and humin from Holocene sediments","docAbstract":"

13C NMR spectra of solid humic substances in Holocene sediments have been obtained using cross polarization with magic-angle sample spinning techniques. The results demonstrate that this technique holds great promise for structural characterizations of complex macromolecular substances such as humin and humic acids. Quantifiable distinctions can be made between structural features of aquatic and terrestrial humic substances. The aliphatic carbons of the humic substances are dominant components suggestive of input from lipid-like materials. An interesting resemblance is also noted between terrestrial humic acid and humin spectra.

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\"}}]}","volume":"2","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbf80e4b08c986b329bcc","contributors":{"authors":[{"text":"Hatcher, Patrick G.","contributorId":93625,"corporation":false,"usgs":true,"family":"Hatcher","given":"Patrick","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":363164,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"VanderHart, D.L.","contributorId":35596,"corporation":false,"usgs":true,"family":"VanderHart","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":363163,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Earl, W.L.","contributorId":25295,"corporation":false,"usgs":true,"family":"Earl","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":363162,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70169341,"text":"70169341 - 1980 - The natural food habits of grizzly bears in Yellowstone National Park, 1973-74","interactions":[],"lastModifiedDate":"2019-06-11T14:44:48","indexId":"70169341","displayToPublicDate":"1980-04-01T11:15:00","publicationYear":"1980","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"The natural food habits of grizzly bears in Yellowstone National Park, 1973-74","docAbstract":"

 The natural food habits of grizzly bears (Ursus arctos horribilis Ord) in Yellowstone National Park were investigated in 1973-74 to identify the grizzly's energy sources and trophic level(s), nutrient use, and distribution. Food consumption was determined by scat analysis and field observations. Food quality and digestibility were estimated by chemical analysis. Grizzlies were distributed in 3 distinctive feeding economies: valley/plateau, a grass/rodent economy where grizzlies were intensive diggers; mountain, primarily a grass/springbeauty/root economy where grizzlies were casual diggers; and lake, primarily a fish/grass economy where grizzlies were fishers. The economies occurred in areas with fertile soils; distribution of bears within each was related to the occurrence of succulent plants. The feeding cycle in the valley/plateau and mountain economies followed plant phenology. Grizzlies fed primarily on meat before green-up and on succulent herbs afterwards; meat, corms, berries, and nuts became important during the postgrowing season. Succulent grasses and sedges with an importance value percentage of 78.5 were the most important food items consumed. Protein from animal tissue was more digestible than protein from plant tissue. Storage fats were more digestible than structural fats. Food energy and digestibility were directly related. Five principle nutrient materials (listed with their percentage digestibilities) contributed to total energy intake: protein from succulent herbs, 42.8; protein and fat from animal material, 78.1; fat and protein from pine nuts, 73.6; starch, 78.8; and sugar from berries and fruits, digestibility undetermined. Protein from succulent herbs, with a nutritive value percentage of 77.3, was the grizzlies' primary energy source. Because succulent, preflowering herbs had higher protein levels than dry, mature herbs, grizzly use of succulent herbs guaranteed them the highest source of herbaceous protein. Low protein digestibility of succulent herbs was compenstated for by high intake. Grizzlies were digestively flexible and maximized use of protein from plant and animal sources. They were adapted to the most constant and abundant sources of protein: succulent herbs and animal material from open, fertile grasslands. Competition among grizzlies for animal food during the pregrowing season may be regulatory for the grizzly population. The grizzly population level can be partially accounted for by the grizzlies' status as secondary consumers during pregreen-up periods and primary consumers during the growing and postgrowing seasons. The essential environmental requirement was the availability of fertile grasslands and herblands interspersed with cover and capable of maintaining artiodactyls, rodents, and abundant nutritious herbs as sources of food.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Bears - Their biology and management","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"International Conference on Bear Research and Management","conferenceDate":"February 1977","conferenceLocation":"Kalispell, MT","language":"English","publisher":"International Union for Conservation of Nature and Natural Resources","publisherLocation":"Morges, Switzerland","usgsCitation":"Mealey, S.P., 1980, The natural food habits of grizzly bears in Yellowstone National Park, 1973-74, chap. of Bears - Their biology and management, v. 4, p. 281-292.","productDescription":"12 p.","startPage":"281","endPage":"292","numberOfPages":"12","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":319389,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":319388,"rank":1,"type":{"id":6,"text":"Chapter"},"url":"https://www.bearbiology.com/fileadmin/tpl/Downloads/URSUS/Vol_4/Mealey_Vol_4.pdf"}],"country":"United States","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -109.92645263671875,\n 45.00365115687189\n ],\n [\n -109.9346923828125,\n 45.02695045318546\n ],\n [\n -109.92645263671875,\n 45.06770141120143\n ],\n [\n -110.0006103515625,\n 45.06770141120143\n ],\n [\n -110.02532958984374,\n 45.042478050891546\n ],\n [\n -110.0555419921875,\n 45.02889163330817\n ],\n [\n -110.70648193359375,\n 45.03083274759959\n ],\n [\n -110.72845458984375,\n 45.04441870436415\n ],\n [\n -110.77239990234375,\n 45.058001435398296\n ],\n [\n -110.77789306640625,\n 45.079339209738094\n ],\n [\n -110.84381103515624,\n 45.07546020688359\n ],\n [\n -110.88226318359375,\n 45.03277379605973\n ],\n [\n -110.928955078125,\n 45.02889163330817\n ],\n [\n -110.94543457031249,\n 45.07158094070473\n ],\n [\n -110.97564697265625,\n 45.09679146394738\n ],\n [\n -111.03607177734375,\n 45.07352060670971\n ],\n [\n -111.09100341796875,\n 45.08515722028692\n ],\n [\n -111.10198974609374,\n 45.106484856646844\n ],\n [\n -111.16241455078125,\n 45.11036175291052\n ],\n [\n -111.17889404296874,\n 45.07352060670971\n ],\n [\n -111.1541748046875,\n 45.052180659942316\n ],\n [\n -111.1102294921875,\n 45.02889163330817\n ],\n [\n -111.09374999999999,\n 44.11322595798781\n ],\n [\n -109.9951171875,\n 44.11322595798781\n ],\n [\n -109.99237060546875,\n 44.314022698837775\n ],\n [\n -110.050048828125,\n 44.319918120477425\n ],\n [\n -110.06927490234375,\n 44.351350365612305\n ],\n [\n -110.06927490234375,\n 44.40042951858466\n ],\n [\n -110.0555419921875,\n 44.422011314236634\n ],\n [\n -109.97314453125,\n 44.44358514592121\n ],\n [\n -109.962158203125,\n 44.512176171071054\n ],\n [\n -110.03631591796875,\n 44.4906276800508\n ],\n [\n -110.10223388671875,\n 44.478870600803134\n ],\n [\n -110.11871337890624,\n 44.49650533109348\n ],\n [\n -110.1544189453125,\n 44.537632301346136\n ],\n [\n -110.13519287109374,\n 44.5826428195842\n ],\n [\n -110.0665283203125,\n 44.5924231071787\n ],\n [\n -109.99786376953125,\n 44.623708968901205\n ],\n [\n -109.951171875,\n 44.623708968901205\n ],\n [\n -109.874267578125,\n 44.62566377574355\n ],\n [\n -109.78912353515625,\n 44.6706061651103\n ],\n [\n -109.742431640625,\n 44.68623013803223\n ],\n [\n -109.7314453125,\n 44.70965819812379\n ],\n [\n -109.7589111328125,\n 44.736978954208844\n ],\n [\n -109.8358154296875,\n 44.762336674810996\n ],\n [\n -109.8687744140625,\n 44.79547998456467\n ],\n [\n -109.8797607421875,\n 44.87144275016589\n ],\n [\n -109.86328125,\n 44.91619436708165\n ],\n [\n -109.8907470703125,\n 44.96674121705534\n ],\n [\n -109.92645263671875,\n 45.00365115687189\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"56f661c6e4b07d796bf7711f","contributors":{"authors":[{"text":"Mealey, Stephen Patrick","contributorId":167861,"corporation":false,"usgs":false,"family":"Mealey","given":"Stephen","email":"","middleInitial":"Patrick","affiliations":[],"preferred":false,"id":623853,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70012250,"text":"70012250 - 1980 - Effective and bankfull discharges of streams in the Yampa River basin, Colorado and Wyoming","interactions":[],"lastModifiedDate":"2025-04-10T22:52:31.591695","indexId":"70012250","displayToPublicDate":"1980-04-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Effective and bankfull discharges of streams in the Yampa River basin, Colorado and Wyoming","docAbstract":"

The effective discharge is defined as the increment of discharge that transports the largest fraction of the annual sediment load over a period of years. Increments of the average annual total sediment load transported by various discharges were calculated by the flow-duration, sediment-transport-curve method for 15 gaging stations in the Yampa River basin of Colorado and Wyoming. A total sediment-transport curve was constructed for each gaging station by adding measured instantaneous suspended-sediment discharges to bedload-sediment discharges computed by the Meyer-Peter and Mueller relation. The streamflow durations were compiled from the respective gaging-station records. The quantity of sediment transported by discharges having various frequencies may be computed by combining these two relations.

The 15 gaging stations had diverse hydraulic and sediment characteristics. Contributing drainage area ranged from 51.8 to 9,960 km2, and mean-annual discharge ranged from 0.040 to 43.9 m3/s. The median diameter of bed material ranged from 0.4 to 86 mm. Mean-annual sediment load from the drainage basins studied ranged from 500 to 1.3·106 metric tons per year.

The effective discharges at the 15 gaging stations were equaled or exceeded on the average of between 1.5 days per year (0.4% of the time) and 11 days per year (3.0% of the time). The recurrence interval of the effective discharges ranged from 1.18 to 3.26 yr. on the annual flood series. To compare the effective discharge with the bankfull discharge, cross-sections were surveyed in a self-formed reach of the channel in the vicinity of each gaging station. The bankfull discharge was defined as the discharge which filled the channel to the level of the floodplain. At all gaging stations, the effective discharge and the bankfull discharge were nearly equal. Thus, the stream channels appear to be adjusted to their effective discharge.

","language":"English","publisher":"Elsevier","doi":"10.1016/0022-1694(80)90084-0","issn":"00221694","usgsCitation":"Andrews, E., 1980, Effective and bankfull discharges of streams in the Yampa River basin, Colorado and Wyoming: Journal of Hydrology, v. 46, no. 3-4, p. 311-330, https://doi.org/10.1016/0022-1694(80)90084-0.","productDescription":"20 p.","startPage":"311","endPage":"330","costCenters":[],"links":[{"id":221998,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado, Wyoming","otherGeospatial":"Yampa River","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -108.41707723791498,\n 42.36653860091272\n ],\n [\n -108.41707723791498,\n 40.16484781920306\n ],\n [\n -105.58030505960073,\n 40.16484781920306\n ],\n [\n -105.58030505960073,\n 42.36653860091272\n ],\n [\n -108.41707723791498,\n 42.36653860091272\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"46","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0632e4b0c8380cd51146","contributors":{"authors":[{"text":"Andrews, E.D.","contributorId":13922,"corporation":false,"usgs":true,"family":"Andrews","given":"E.D.","email":"","affiliations":[],"preferred":false,"id":363090,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":1001482,"text":"1001482 - 1980 - High duck nesting success in a predator-reduced environment","interactions":[],"lastModifiedDate":"2024-10-28T15:33:28.671466","indexId":"1001482","displayToPublicDate":"1980-04-01T00:00:00","publicationYear":"1980","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":"High duck nesting success in a predator-reduced environment","docAbstract":"

Duck nesting and production were studied during 1969-74 on a 51-ha field of undisturbed grass-legume cover and a surrounding 8.13-km2 area in north-central South Dakota. The principal mammalian predators of ducks were reduced within a 259-km2 zone from May 1969 through August 1971. Dabbling duck nest densities, hatching success, and breeding populations attained high levels. Seven duck species produced 1,062 nests on the 51-ha field during 6 years, 864 (81%) hatched, 146 (14%) were destroyed, and 52 (5%) had other fates. During 1970-72, when predator reduction was most effective, the hatching success for 756 nests was 94%. The number of mallard (Anas platyrhynchos) nests increased from 37 (0.7/ha) in 1969 to 181 (3.5/ha) in 1972. Mallard pairs increased from 2.8/km2 to 16.8/km2 on the 8.13-km2 area during the same period. A minimum of 7,250 ducklings hatched on the 51-ha field during the 6 years, including 2,342 ducklings in 1972. Exceptionally high duck nesting densities and hatching rates occurred when predators were controlled.

","language":"English","publisher":"Wiley","doi":"10.2307/3807974","usgsCitation":"Duebbert, H.F., and Lokemoen, J.T., 1980, High duck nesting success in a predator-reduced environment: Journal of Wildlife Management, v. 44, no. 2, p. 428-437, https://doi.org/10.2307/3807974.","productDescription":"10 p.","startPage":"428","endPage":"437","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133754,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"South 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Dakota\",\"nation\":\"USA \"}}]}","volume":"44","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a61e4b07f02db635940","contributors":{"authors":[{"text":"Duebbert, Harold F.","contributorId":18041,"corporation":false,"usgs":true,"family":"Duebbert","given":"Harold","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":311114,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lokemoen, John T.","contributorId":15555,"corporation":false,"usgs":true,"family":"Lokemoen","given":"John","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":311115,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70012248,"text":"70012248 - 1980 - Sedimentology and geochemistry of surface sediments, outer continental shelf, southern Bering Sea","interactions":[],"lastModifiedDate":"2024-10-09T17:17:13.039769","indexId":"70012248","displayToPublicDate":"1980-04-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2667,"text":"Marine Geology","active":true,"publicationSubtype":{"id":10}},"title":"Sedimentology and geochemistry of surface sediments, outer continental shelf, southern Bering Sea","docAbstract":"

Present-day sediment dynamics, combined with lowerings of sea level during the Pleistocene, have created a mixture of sediments on the outer continental shelf of the southern Bering Sea that was derived from the Alaskan Mainland, the Aleutian Islands, and the Pribilof ridge. Concentrations of finer-grained, higher-organic sediments in the region of the St. George basin have further modified regional distribution patterns of sediment composition.

Q-mode factor analysis of 58 variables related to sediment size and composition - including content of major, minor, and trace elements, heavy and light minerals, and clay minerals - reveals three dominant associations of sediment:

1. (1) The most significant contribution, forming a coarse-grained sediment scattered over most of the shelf consists of felsic sediment derived from the generally quartz-rich rocks of the Alaskan mainland. This sediment contains relatively high concentrations of Si, Ba, Rb, quartz, garnet, epidote, metamorphic rock fragments, potassium feldspar, and illite.

2. (2) The next most important group, superimposed on the felsic group consists of andesitic sediment derived from the Aleutian Islands. This more mafic sediment contains relatively high concentrations of Na, Ca, Ti, Sr, V, Mn, Cu, Fe, Al, Co, Zn, Y, Yb, Ga, volcanic rock fragments, glass, clinopyroxene, smectite, and vermiculite.

3. (3) A local group of basaltic sediment, derived from rocks of the Pribilof Islands, is a subgroup of the Aleutian andesite group. Accumulation of fine-grained sediment in St. George basin has created a sediment group containing relatively high concentrations of C, S, U, Li, B, Zr, Ga, Hg, silt, and clay.

Sediment of the Aleutian andesite group exhibits a strong gradient, or \"plume\", with concentrations decreasing away from Unimak Pass and toward St. George basin. The absence of present-day currents sufficient to move even clay-size material as well as the presence of Bering submarine canyon between the Aleutian Islands and the outer continental shelf and slope, indicates that Holocene sediment dynamics cannot be used to explain the observed distribution of surface sediment derived from the Aleutian Islands. We suggest that this pattern is relict and resulted from sediment dynamics during lower sea levels of the Pleistocene. 

","language":"English","publisher":"Elsevier","doi":"10.1016/0025-3227(80)90123-1","usgsCitation":"Gardner, J., Dean, W., and Vallier, T., 1980, Sedimentology and geochemistry of surface sediments, outer continental shelf, southern Bering Sea: Marine Geology, v. 35, no. 4, p. 299-329, https://doi.org/10.1016/0025-3227(80)90123-1.","productDescription":"31 p.","startPage":"299","endPage":"329","costCenters":[{"id":310,"text":"Geology, Minerals, Energy and Geophysics Science Center","active":false,"usgs":true}],"links":[{"id":221936,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Bering 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\"}}]}","volume":"35","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8a9ce4b08c986b317294","contributors":{"authors":[{"text":"Gardner, J.V.","contributorId":76705,"corporation":false,"usgs":true,"family":"Gardner","given":"J.V.","affiliations":[],"preferred":false,"id":363086,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dean, W.E.","contributorId":97099,"corporation":false,"usgs":true,"family":"Dean","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":363087,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vallier, T.L.","contributorId":69526,"corporation":false,"usgs":true,"family":"Vallier","given":"T.L.","affiliations":[],"preferred":false,"id":363085,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1007463,"text":"1007463 - 1980 - Ecological survey of the night monkey, Aotus trivirgatus, in Formosa Province, Argentina","interactions":[],"lastModifiedDate":"2025-06-25T15:06:22.494718","indexId":"1007463","displayToPublicDate":"1980-04-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3118,"text":"Primates","active":true,"publicationSubtype":{"id":10}},"title":"Ecological survey of the night monkey, Aotus trivirgatus, in Formosa Province, Argentina","docAbstract":"

Transect surveys were carried out in northern Argentina during October and November 1977 in order to determine the distribution and abundance ofAotus trivirgatus. The monkeys were seen in pairs with one to two recent young and occurred at a density of approximately six family groups/km2.Aotus was only found in relatively moist, riparian, low forests. Some life history traits, such as diurnal activity and the lack of tree-hole use, are distinctive compared to more northern populations.

","language":"English","publisher":"Springer Nature","doi":"10.1007/BF02374034","usgsCitation":"Rathbun, G.B., and Gache, M., 1980, Ecological survey of the night monkey, Aotus trivirgatus, in Formosa Province, Argentina: Primates, v. 21, no. 2, p. 211-219, https://doi.org/10.1007/BF02374034.","productDescription":"9 p.","startPage":"211","endPage":"219","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130025,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Argentina","otherGeospatial":"Formosa Province","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -64.05556625012242,\n -21.980334452618607\n ],\n [\n -64.34907940078331,\n -22.922489296185887\n ],\n [\n -61.20353210232372,\n -24.74764019878362\n ],\n [\n -58.40078228584114,\n -26.853071331380892\n ],\n [\n -57.94576340375764,\n -26.38387287738697\n ],\n [\n -57.46263911012467,\n -25.465403829335624\n ],\n [\n -60.899560459603116,\n -23.60074392833471\n ],\n [\n -62.70702072043386,\n -21.988048485869285\n ],\n [\n -64.05556625012242,\n -21.980334452618607\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"21","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a4ee4b07f02db627b9a","contributors":{"authors":[{"text":"Rathbun, G. B.","contributorId":106044,"corporation":false,"usgs":true,"family":"Rathbun","given":"G.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":315408,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gache, M.","contributorId":69505,"corporation":false,"usgs":true,"family":"Gache","given":"M.","email":"","affiliations":[],"preferred":false,"id":315407,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70209240,"text":"70209240 - 1980 - Variability of currents and sediment transport on continental shelves: Optical and current meter studies of the bottom boundary layer","interactions":[],"lastModifiedDate":"2020-03-25T11:37:09","indexId":"70209240","displayToPublicDate":"1980-03-25T11:32:06","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5446,"text":"Proceedings of SPIE","active":true,"publicationSubtype":{"id":10}},"title":"Variability of currents and sediment transport on continental shelves: Optical and current meter studies of the bottom boundary layer","docAbstract":"

The Continental Margin Sediment Dynamics program of the U.S. Geological Survey has been using a variety of optical instruments to monitor water turbidity as part of our studies of sediment transport. Although we suspect that optical devices will eventually be supplanted by more direct measures of suspended sediments, results of several field experiments indicate that for now transmissometers and nephelometers offer the best solution to the problem of long term environmental monitoring in the ocean. The Continental Margin Sediment Dynamics (CMSD) program of the U.S. Geological Survey is structured to investigate those oceanographic and geological processes which influence and control the active transport of sediments and other materials over continental margins. The focus of this program is on active sedimentary processes, the mechanisms which create them, and the effects they produce (see Figure 1 for a diagrammatic depiction). Basically, we design our experiments to investigate (1) transport mechanisms of oceanic sediments and other materials as suspended load and bed load, and (2) relationships of erosion and deposition to the dynamical characteristics of oceanic bottom boundary layers. The purpose of this report is to describe briefly those aspects of equipment and experiments that relate to our study of suspended particulate matter and water turbidity. Much of our understanding of the spatial distribution and temporal variability of suspended sediments depends upon measurements from optical instruments. In this report we describe those instruments and give examples of their use and some results of two field experiments.

","language":"English","publisher":"SPIE","doi":"10.1117/12.958270","usgsCitation":"Karl, H.A., Drake, D., and Cacchione, D., 1980, Variability of currents and sediment transport on continental shelves: Optical and current meter studies of the bottom boundary layer: Proceedings of SPIE, v. 208, p. 143-150, https://doi.org/10.1117/12.958270.","productDescription":"8 p.","startPage":"143","endPage":"150","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":373509,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"208","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Karl, H. A.","contributorId":115791,"corporation":false,"usgs":true,"family":"Karl","given":"H.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":785517,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Drake, D.E.","contributorId":48150,"corporation":false,"usgs":true,"family":"Drake","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":785518,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cacchione, D.A.","contributorId":65448,"corporation":false,"usgs":true,"family":"Cacchione","given":"D.A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":785519,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70209238,"text":"70209238 - 1980 - Liquefaction potential of the Yukon Prodelta, Bering Sea","interactions":[],"lastModifiedDate":"2020-03-25T11:28:50","indexId":"70209238","displayToPublicDate":"1980-03-25T11:09:32","publicationYear":"1980","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Liquefaction potential of the Yukon Prodelta, Bering Sea","docAbstract":"

The Yukon prodelta is exposed to large storm waves propagating northward from the southern Bering Sea. Shallow water depths of the prodelta enhance the transfer of energy from the surface waves to the bottom. As the bottom deposits are cyclically loaded by large storm waves, potential decrease in their resistance to shear could ultimately cause liquefaction. A preliminary assessment of the engineering properties of Yukon sandy silt suggests that the prodelta deposits may be susceptible to wave induced liquefaction during severe storm events. In addition, erosion and are suspension of sediment in the prodelta may be intensified because of the liquefaction process.

","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"12th annual offshore technology conference; Proceedings","conferenceTitle":"Offshore Technology Conference","conferenceDate":"May, 5-8, 1980","conferenceLocation":"Houston, Texas","language":"English","publisher":"OnePetro","doi":"10.4043/3773-MS","usgsCitation":"Clukey, E., Cacchione, D., and Nelson, C., 1980, Liquefaction potential of the Yukon Prodelta, Bering Sea, in 12th annual offshore technology conference; Proceedings, v. 12, Houston, Texas, May, 5-8, 1980, p. 315-325, https://doi.org/10.4043/3773-MS.","productDescription":"11 p.","startPage":"315","endPage":"325","costCenters":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":373508,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","noUsgsAuthors":false,"publicationDate":"2013-04-08","publicationStatus":"PW","contributors":{"authors":[{"text":"Clukey, E.C.","contributorId":52720,"corporation":false,"usgs":true,"family":"Clukey","given":"E.C.","email":"","affiliations":[],"preferred":false,"id":785507,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cacchione, D.A.","contributorId":65448,"corporation":false,"usgs":true,"family":"Cacchione","given":"D.A.","affiliations":[{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":785508,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, C.H.","contributorId":88346,"corporation":false,"usgs":true,"family":"Nelson","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":785509,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1416,"text":"1416 - 1980 - Development of uranium exploration models for the Prospector consultant system: final report covering the period September 22, 1978 to September 21, 1979","interactions":[],"lastModifiedDate":"2014-07-10T08:49:26","indexId":"1416","displayToPublicDate":"1980-03-01T08:47:20","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Development of uranium exploration models for the Prospector consultant system: final report covering the period September 22, 1978 to September 21, 1979","docAbstract":"No abstract available.","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"SRI project 7856","largerWorkSubtype":{"id":6,"text":"USGS Unnumbered Series"},"language":"English","publisher":"U.S. Geological Survey","doi":"10.3133/1416","usgsCitation":"Gaschnig, J., 1980, Development of uranium exploration models for the Prospector consultant system: final report covering the period September 22, 1978 to September 21, 1979, ix, 603 p., https://doi.org/10.3133/1416.","productDescription":"ix, 603 p.","numberOfPages":"612","temporalStart":"1978-09-22","temporalEnd":"1979-09-21","costCenters":[],"links":[{"id":289698,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53bfb5f6e4b06d97a6487d0b","contributors":{"authors":[{"text":"Gaschnig, John","contributorId":15933,"corporation":false,"usgs":true,"family":"Gaschnig","given":"John","affiliations":[],"preferred":false,"id":143709,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70208651,"text":"70208651 - 1980 - A necropsy procedure for sampling disease in wild birds","interactions":[],"lastModifiedDate":"2020-02-24T09:52:12","indexId":"70208651","displayToPublicDate":"1980-02-28T09:47:32","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1318,"text":"Condor","active":true,"publicationSubtype":{"id":10}},"title":"A necropsy procedure for sampling disease in wild birds","docAbstract":"

This paper presents a necropsy procedure for examining small wild birds, designed to be used by investigators without experience in avian pathology. It gives instructions on how to conduct a postmortem examination, lists the needed equipment, tells what parts of a bird to save when a disorder in encountered, and lists possible diseases which each may signify. This procedure would enable ornithologists to include parasites and diseases in their investigations of avian populations.

","language":"English","publisher":"Oxford University Press","doi":"10.2307/1366792","usgsCitation":"van Riper, C., and van Riper, S.G., 1980, A necropsy procedure for sampling disease in wild birds: Condor, v. 82, no. 1, p. 85-98, https://doi.org/10.2307/1366792.","productDescription":"14 p.","startPage":"85","endPage":"98","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":502972,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://digitalcommons.usf.edu/condor/vol82/iss1/11","text":"External Repository"},{"id":372541,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"82","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"van Riper, Charles III 0000-0003-1084-5843 charles_van_riper@usgs.gov","orcid":"https://orcid.org/0000-0003-1084-5843","contributorId":169488,"corporation":false,"usgs":true,"family":"van Riper","given":"Charles","suffix":"III","email":"charles_van_riper@usgs.gov","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":false,"id":782903,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"van Riper, Sandra G.","contributorId":56618,"corporation":false,"usgs":false,"family":"van Riper","given":"Sandra","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":782904,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70231445,"text":"70231445 - 1980 - High throughput Landsat imagery film recorder","interactions":[],"lastModifiedDate":"2022-05-10T17:48:51.594749","indexId":"70231445","displayToPublicDate":"1980-02-12T12:38:55","publicationYear":"1980","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"High throughput Landsat imagery film recorder","docAbstract":"

The Earth Resources Observation Systems (EROS) Data Center is responsible for processing, archiving, reproducing, and distributing satellite and aircraft remotely-sensed Earth imagery data in both film and digital format. Landsat Multispectral Scanner (MSS) and Return Beam Vidicon (RBV) sensor data alone represents a daily recording requirement of 23 billion pixels on 1000 feet of film. New satellites and sensors may double this amount of data within two years. To handle these requirements, the EROS Data Center installed an operational, multi-mode, programmable, high throughput, high resolution laser-beam film recording system directly on-line to the primary digital image processing computer. This system employs an Argon-Ion laser light source, electro-optic modulator, and rotating mirror to expose film in a flat-field line-scanned format at rates up to 400 lines per second. Laboratory-type requirements, such as a geometric fidelity of ± 0.05% and density repeatability within ± 0.05D, are maintained in a high-throughput production environment. To provide for future sensor formats, the scan rate, scanning spot size, film velocity, laser power, and number of overscans are firmware programmable for up to 16 on-line, auto-matically selectable configurations.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings Volume 0200, Laser Recording and Information Handling","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"23rd Annual Technical Symposium","conferenceDate":"1979","conferenceLocation":"San Diego, California, United States","language":"English","publisher":"Society of Photo-Optical Instrumentation Engineers","doi":"10.1117/12.958075","usgsCitation":"Ulmer, D.E., 1980, High throughput Landsat imagery film recorder, in Proceedings Volume 0200, Laser Recording and Information Handling, v. 200, San Diego, California, United States, 1979, p. 114-124, https://doi.org/10.1117/12.958075.","productDescription":"11 p.","startPage":"114","endPage":"124","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":400443,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"200","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ulmer, David E.","contributorId":291593,"corporation":false,"usgs":false,"family":"Ulmer","given":"David","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":842627,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70226740,"text":"70226740 - 1980 - Early acquisition of characteristic magnetization in red beds of the Moenkopi Formation (Triassic), Gray Mountain, Arizona","interactions":[],"lastModifiedDate":"2021-12-08T16:28:39.610513","indexId":"70226740","displayToPublicDate":"1980-02-10T10:18:58","publicationYear":"1980","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":"Early acquisition of characteristic magnetization in red beds of the Moenkopi Formation (Triassic), Gray Mountain, Arizona","docAbstract":"

Four discrete magnetizations associated with events occurring during deposition, early diagenesis, recent weathering, and cloud to ground lightning have been identified in rocks of the Moenkopi Formation at Gray Mountain, Arizona. A paleomagnetic study of more than 800 samples tied closely to the physical stratigraphy of the Moenkopi indicates that most of the magnetization remaining after partial alternating field and thermal demagnetization was acquired during and shortly after deposition. Directions of this remaining (characteristic) magnetization, in both normally and reversely magnetized rock, are closely similar to directions reported for the Moenkopi elsewhere on the Colorado Plateau. Sampling across the Moenkopi Formation at Gray Mountain has revealed two reversed magnetozones separating three normal magnetozones. Generally sharp boundaries of the magnetozones, their close concordance with physical stratigraphic units, and the rarity of anomalous directions of magnetization within the magnetozones indicate that most of the secondary components of the characteristic magnetization were acquired within 104–105 years after deposition. A conglomerate test based on siltstone clasts in sandstone shows highly scattered but not completely random directions of magnetization following partial thermal demagnetization. A secondary Triassic normal magnetization appears to be superimposed on some of the clasts, as suggested by the approximate coincidence of the resultant magnetic vector from the clasts with a Triassic normal direction. A fold test based on samples from highly deformed silty clay stone and sandstone in an intraformational landslide shows that these rocks acquired most of their stable magnetization before folding. A component of Triassic normal magnetization acquired after deformation also occurs in some of these rocks.

","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB085iB02p00997","usgsCitation":"Purucker, M.E., Elston, D., and Shoemaker, E.M., 1980, Early acquisition of characteristic magnetization in red beds of the Moenkopi Formation (Triassic), Gray Mountain, Arizona: Journal of Geophysical Research B: Solid Earth, v. 85, no. B2, p. 997-1012, https://doi.org/10.1029/JB085iB02p00997.","productDescription":"9B1423, 16 p.","startPage":"997","endPage":"1012","costCenters":[],"links":[{"id":392628,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona","otherGeospatial":"Gray Mountain","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -111.64581298828125,\n 35.62158189955968\n ],\n [\n -111.27227783203124,\n 35.62158189955968\n ],\n [\n -111.27227783203124,\n 35.89350026142572\n ],\n [\n -111.64581298828125,\n 35.89350026142572\n ],\n [\n -111.64581298828125,\n 35.62158189955968\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"85","issue":"B2","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","contributors":{"authors":[{"text":"Purucker, Michael E.","contributorId":210176,"corporation":false,"usgs":false,"family":"Purucker","given":"Michael","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":828064,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Elston, Donald P.","contributorId":71634,"corporation":false,"usgs":true,"family":"Elston","given":"Donald P.","affiliations":[],"preferred":false,"id":828065,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shoemaker, Eugene Merle","contributorId":20342,"corporation":false,"usgs":true,"family":"Shoemaker","given":"Eugene","email":"","middleInitial":"Merle","affiliations":[],"preferred":false,"id":828066,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70120136,"text":"70120136 - 1980 - Report of the committee: an evaluation of the wildlife portion of the California Desert Conservation Area Plan and Environmental Impact Statement","interactions":[],"lastModifiedDate":"2014-08-12T13:58:59","indexId":"70120136","displayToPublicDate":"1980-02-01T13:57:58","publicationYear":"1980","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"Report of the committee: an evaluation of the wildlife portion of the California Desert Conservation Area Plan and Environmental Impact Statement","docAbstract":"No abstract available.","language":"English","publisher":"U.S. Fish and Wildlife Service, Western Energy and Land Use Team","publisherLocation":"Fort Collins, CO","usgsCitation":"Cooper, C., Coulombe, H., Hays, R., Scott, N., and Smith, A., 1980, Report of the committee: an evaluation of the wildlife portion of the California Desert Conservation Area Plan and Environmental Impact Statement.","costCenters":[],"links":[{"id":292039,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -124.41,32.53 ], [ -124.41,42.01 ], [ -114.13,42.01 ], [ -114.13,32.53 ], [ -124.41,32.53 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53eb2a8ae4b0461e44764aaf","contributors":{"authors":[{"text":"Cooper, C.F.","contributorId":54898,"corporation":false,"usgs":true,"family":"Cooper","given":"C.F.","email":"","affiliations":[],"preferred":false,"id":497954,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Coulombe, H.N.","contributorId":19883,"corporation":false,"usgs":true,"family":"Coulombe","given":"H.N.","email":"","affiliations":[],"preferred":false,"id":497952,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hays, R.L.","contributorId":40162,"corporation":false,"usgs":true,"family":"Hays","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":497953,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Scott, N.J. Jr.","contributorId":8407,"corporation":false,"usgs":true,"family":"Scott","given":"N.J.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":497951,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smith, A.T.","contributorId":108291,"corporation":false,"usgs":true,"family":"Smith","given":"A.T.","email":"","affiliations":[],"preferred":false,"id":497955,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70175093,"text":"70175093 - 1980 - High frequency radar measurements of tidal currents flowing through San Pablo Strait, San Francisco Bay","interactions":[],"lastModifiedDate":"2016-07-28T15:18:24","indexId":"70175093","displayToPublicDate":"1980-02-01T00:00:00","publicationYear":"1980","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2620,"text":"Limnology and Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"High frequency radar measurements of tidal currents flowing through San Pablo Strait, San Francisco Bay","docAbstract":"

High frequency (HF) radar measurements of the surface current averaged over the upper 0.5 m in San Pablo Strait were compared with current meter measurements of the subsurface current made at 9.4 m below mean lower low water (MLLW) over two 12.4-h tidal cycles. After averaging the radar and current meter data over two tidal cycles, a southerly (ebbing direction) surface current of 32 cm·s−1 was deduced from the radar measurements and a northerly (flooding direction) subsurface current of 7 cm·s−1 from the current meter measurements. This nontidal flow is maintained by freshwater discharge from the Sacramento–San Joaquin Rivers into Suisun and San Pablo Bays. The radar measurement technique provides quantitative estimates of the surface currents that previously were determined only from surface drifter studies.

","language":"English","publisher":"ASLO","doi":"10.4319/lo.1980.25.5.0929","usgsCitation":"Maresca, J.W., Padden, R.R., Cheng, R.T., and Seibel, E., 1980, High frequency radar measurements of tidal currents flowing through San Pablo Strait, San Francisco Bay: Limnology and Oceanography, v. 25, no. 5, p. 929-935, https://doi.org/10.4319/lo.1980.25.5.0929.","productDescription":"7 p.","startPage":"929","endPage":"935","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":325799,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationDate":"2003-12-22","publicationStatus":"PW","scienceBaseUri":"579b2cb0e4b0589fa1c980b3","contributors":{"authors":[{"text":"Maresca, Joseph W. Jr.","contributorId":173246,"corporation":false,"usgs":false,"family":"Maresca","given":"Joseph","suffix":"Jr.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":643886,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Padden, Robin R.","contributorId":173247,"corporation":false,"usgs":false,"family":"Padden","given":"Robin","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":643887,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cheng, Ralph T.","contributorId":69134,"corporation":false,"usgs":true,"family":"Cheng","given":"Ralph","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":643888,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Seibel, Erwin","contributorId":173248,"corporation":false,"usgs":false,"family":"Seibel","given":"Erwin","email":"","affiliations":[],"preferred":false,"id":643889,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}