{"pageNumber":"5431","pageRowStart":"135750","pageSize":"25","recordCount":165625,"records":[{"id":70119552,"text":"70119552 - 1976 - Mathematical models for nonparametric inferences from line transect data","interactions":[],"lastModifiedDate":"2023-11-06T13:14:07.526655","indexId":"70119552","displayToPublicDate":"1976-06-01T12:34:41","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1039,"text":"Biometrics","active":true,"publicationSubtype":{"id":10}},"title":"Mathematical models for nonparametric inferences from line transect data","docAbstract":"A general mathematical theory of line transects is develoepd which supplies a framework for nonparametric density estimation based on either right angle or sighting distances. The probability of observing a point given its right angle distance (y) from the line is generalized to an arbitrary function g(y). Given only that g(O) = 1, it is shown there are nonparametric approaches to density estimation using the observed right angle distances. The model is then generalized to include sighting distances (r). Let f(y/r) be the conditional distribution of right angle distance given sighting distance. It is shown that nonparametric estimation based only on sighting distances requires we know the transformation of r given by f(O/r).","publisher":"International Biometric Society","doi":"10.2307/2529501","usgsCitation":"Burnham, K., and Anderson, D., 1976, Mathematical models for nonparametric inferences from line transect data: Biometrics, v. 32, no. 2, p. 325-336, https://doi.org/10.2307/2529501.","productDescription":"12 p.","startPage":"325","endPage":"336","numberOfPages":"12","costCenters":[],"links":[{"id":291838,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53e492cde4b0fff40428a5b1","contributors":{"authors":[{"text":"Burnham, K.P.","contributorId":63760,"corporation":false,"usgs":true,"family":"Burnham","given":"K.P.","email":"","affiliations":[],"preferred":false,"id":497711,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anderson, David R.","contributorId":8413,"corporation":false,"usgs":true,"family":"Anderson","given":"David R.","affiliations":[],"preferred":false,"id":497710,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70231225,"text":"70231225 - 1976 - Evaluation of LANDSAT-1 image applications to geologic mapping, structural analysis and mineral resource inventory of South America with special emphasis on the Andes Mountain region: Type III final report for period January 1973 to July 1974","interactions":[],"lastModifiedDate":"2022-05-03T16:16:48.660074","indexId":"70231225","displayToPublicDate":"1976-06-01T10:45:00","publicationYear":"1976","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"title":"Evaluation of LANDSAT-1 image applications to geologic mapping, structural analysis and mineral resource inventory of South America with special emphasis on the Andes Mountain region: Type III final report for period January 1973 to July 1974","docAbstract":"

The author has identified the following significant results. The discovery of copper mineralization along a lineament mapped in Area 7 (La Paz) has lent credence to the use of LANDSAT 1 data as a basic step in mineral exploration. In Area 9 (Copiapo Region), a number of lineaments were found to be associated with the largest copper deposits of the region. In Area 12 (Magallanes), the identification of what is believed to be a tertiary basin from LANDSAT 1 data has resulted in a new area for petroleum exploration. Band 7 images, as black and white transparencies, were found to be the most useful for geologic interpretation in both tropical vegetated areas and desert regions. Color composites made by the diazochrome process, chromaline process, and from color additive viewers provided additional information. Mosaics of LANDSAT 1 data covering 4 x 6 degrees of latitude and longitude compiled at the 1:1,000,000 scale were found to be an ideal size and format for most users.

","language":"English","publisher":"National Aeronautics and Space Administration","usgsCitation":"Carter, W.D., 1976, Evaluation of LANDSAT-1 image applications to geologic mapping, structural analysis and mineral resource inventory of South America with special emphasis on the Andes Mountain region: Type III final report for period January 1973 to July 1974, 115 p.","productDescription":"115 p.","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":400065,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":400063,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://ntrs.nasa.gov/api/citations/19760023539/downloads/19760023539.pdf","size":"10,466 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"Argentina, Bolivia, Brazil, Chile, Colombia, Peru, Venezuela","city":"Araqua, Belo Horizonte, Copiapo, La Paz, Magallanes, Mendoza, Porto Velho, Santiago, Tucuman","otherGeospatial":"Andes Mountains, Guyana Shield","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -62.99560546875,\n 3.7765593098768635\n ],\n [\n -60.49072265625,\n 3.7765593098768635\n ],\n [\n -60.49072265625,\n 8.47237228290914\n ],\n [\n -62.99560546875,\n 8.47237228290914\n ],\n [\n -62.99560546875,\n 3.7765593098768635\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -76.81640625,\n 0.1977535136255067\n ],\n [\n -68.84033203125,\n 0.1977535136255067\n ],\n [\n -68.84033203125,\n 4.5873761534497035\n ],\n [\n -76.81640625,\n 4.5873761534497035\n ],\n [\n -76.81640625,\n 0.1977535136255067\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -77.3876953125,\n -7.906911616469297\n ],\n [\n -70.2685546875,\n -7.906911616469297\n ],\n [\n -70.2685546875,\n -0.08789059053082422\n ],\n [\n -77.3876953125,\n -0.08789059053082422\n ],\n [\n -77.3876953125,\n -7.906911616469297\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -56.2939453125,\n -10.746969318459989\n ],\n [\n -48.3837890625,\n -10.746969318459989\n ],\n [\n -48.3837890625,\n -0.7470491450051796\n ],\n [\n -56.2939453125,\n -0.7470491450051796\n ],\n [\n -56.2939453125,\n -10.746969318459989\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -66.4453125,\n -13.325484885597936\n ],\n [\n -58.00781249999999,\n -13.325484885597936\n ],\n [\n -58.00781249999999,\n -5.747174076651375\n ],\n [\n -66.4453125,\n -5.747174076651375\n ],\n [\n -66.4453125,\n -13.325484885597936\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -72.7294921875,\n -21.16648385820657\n ],\n [\n -65.1708984375,\n -21.16648385820657\n ],\n [\n -65.1708984375,\n -14.519780046326085\n ],\n [\n -72.7294921875,\n -14.519780046326085\n ],\n [\n -72.7294921875,\n -21.16648385820657\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -46.4501953125,\n -23.120153621695614\n ],\n [\n -38.8037109375,\n -23.120153621695614\n ],\n [\n -38.8037109375,\n -15.919073517982413\n ],\n [\n -46.4501953125,\n -15.919073517982413\n ],\n [\n -46.4501953125,\n -23.120153621695614\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -70.94970703125,\n -28.84467368077178\n ],\n [\n -60.29296874999999,\n -28.84467368077178\n ],\n [\n -60.29296874999999,\n -24.246964554300924\n ],\n [\n -70.94970703125,\n -24.246964554300924\n ],\n [\n -70.94970703125,\n -28.84467368077178\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -72.02636718749999,\n -34.75966612466248\n ],\n [\n -68.09326171875,\n -34.75966612466248\n ],\n [\n -68.09326171875,\n -32.15701248607008\n ],\n [\n -72.02636718749999,\n -32.15701248607008\n ],\n [\n -72.02636718749999,\n -34.75966612466248\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -75.69580078125,\n -55.491303628204214\n ],\n [\n -63.47900390625,\n -55.491303628204214\n ],\n [\n -63.47900390625,\n -50.93073802371817\n ],\n [\n -75.69580078125,\n -50.93073802371817\n ],\n [\n -75.69580078125,\n -55.491303628204214\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Carter, William D.","contributorId":64567,"corporation":false,"usgs":true,"family":"Carter","given":"William","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":842089,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70209234,"text":"70209234 - 1976 - Analysis of slump slip lines and deformation fabric in slumped Pleistocene lake beds","interactions":[],"lastModifiedDate":"2020-03-25T10:03:40","indexId":"70209234","displayToPublicDate":"1976-06-01T09:55:41","publicationYear":"1976","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":"Analysis of slump slip lines and deformation fabric in slumped Pleistocene lake beds","docAbstract":"

Slumped glacial delta sands and silts exhibit flexural slip folds and low-angle thrust faults where the beds remained coherent during slump deformation. Alternating cross-cutting relationships between f (sub l ) and f (sub r ) fold axial planes indicate that these fold groups are conjugate sets, related to the same slump movement. Analysis of slump fold axis orientations by the separation-angle method yields the fold slip plane and fold slip line. A deformation fabric reference diagram, deduced from fold and thrust fault data, shows a vertical deformation plane that is defined by the pole to the f (sub l ) and f (sub r ) fold slip planes, pole to rotated bedding, pole to thrust faults, and the fold slip lines. Central tendency estimators, Theta , Theta , and P 50 , of distributions of fold azimuths show close agreement, as do dispersion indicators sigma , derived from L values, and (P 84 -P 16 )/2. Fold axis orientations in the slumped mass are normally distributed, but the perpendiculars to deduced slip lines have consistently higher azimuth values than other central tendency values. These results may indicate that the sampling plain biased the populations. In this case, the vector mean is not perpendicular to the deduced slip line. Silt intraclast breccias, containing slump overfolds, appear to have been deposited as noncoherent grain flows in the slump depression subsequent to slump deformation. The distribution of overfold axis orientations is not significantly different from random distributions. Separation-angle analysis of the same lower breccia data yields a valid slip line solution.

","language":"English","publisher":"American Geological Institute","doi":"10.1306/212F6F4B-2B24-11D7-8648000102C1865D","usgsCitation":"Stone, B.D., 1976, Analysis of slump slip lines and deformation fabric in slumped Pleistocene lake beds: Journal of Sedimentary Research, v. 46, no. 2, p. 313-325, https://doi.org/10.1306/212F6F4B-2B24-11D7-8648000102C1865D.","productDescription":"13 p.","startPage":"313","endPage":"325","costCenters":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true}],"links":[{"id":373498,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Hampshire","city":"Manchester","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -71.58554077148438,\n 42.88451779606897\n ],\n [\n -71.290283203125,\n 42.88451779606897\n ],\n [\n -71.290283203125,\n 43.072900581493215\n ],\n [\n -71.58554077148438,\n 43.072900581493215\n ],\n [\n -71.58554077148438,\n 42.88451779606897\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"46","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Stone, Byron D. 0000-0001-6092-0798 bdstone@usgs.gov","orcid":"https://orcid.org/0000-0001-6092-0798","contributorId":1702,"corporation":false,"usgs":true,"family":"Stone","given":"Byron","email":"bdstone@usgs.gov","middleInitial":"D.","affiliations":[{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":785493,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70119560,"text":"70119560 - 1976 - Western Energy and Land Use Team preliminary FY 76 project list and status report: May 20, 1976","interactions":[],"lastModifiedDate":"2014-08-07T13:07:25","indexId":"70119560","displayToPublicDate":"1976-05-20T13:06:46","publicationYear":"1976","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":9,"text":"Other Report"},"title":"Western Energy and Land Use Team preliminary FY 76 project list and status report: May 20, 1976","docAbstract":"No abstract available.","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"U.S. Geological Survey, 1976, Western Energy and Land Use Team preliminary FY 76 project list and status report: May 20, 1976.","costCenters":[],"links":[{"id":291843,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53e492d1e4b0fff40428a62d"} ,{"id":5224972,"text":"5224972 - 1976 - Influence of stimuli from populations of Peromyscus leucopus on maturation of young","interactions":[],"lastModifiedDate":"2025-03-10T16:32:07.60201","indexId":"5224972","displayToPublicDate":"1976-05-20T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2373,"text":"Journal of Mammalogy","onlineIssn":"1545-1542","printIssn":"0022-2372","active":true,"publicationSubtype":{"id":10}},"title":"Influence of stimuli from populations of Peromyscus leucopus on maturation of young","docAbstract":"

The effects of stimuli associated with conspecific laboratory populations on parameters of sexual maturation in Peromyscus leucopus were examined. Beginning at birth, experimental litters were exposed to the constant infusion of urine, feces, and other material from the populations through a metabolism funnel into their cages. As evidenced by age at first vaginal estrus, experimental females matured later than controls. They also had lighter weight reproductive organs. Testis weights were much greater in control than experimental males.

These data suggest that stimuli from populations of P. leucopus can inhibit reproductive maturation of conspecifics. In view of the well-documented effects of chemical stimuli on reproductive maturation and function in other rodents, it is suggested that chemical stimuli in the feces, urine, or from other sources mediated the reproductive inhibition observed in this study.

","language":"English","publisher":"Oxford Academic","doi":"10.2307/1379691","usgsCitation":"Rogers, J., and Beauchamp, G., 1976, Influence of stimuli from populations of Peromyscus leucopus on maturation of young: Journal of Mammalogy, v. 57, no. 2, p. 320-330, https://doi.org/10.2307/1379691.","productDescription":"11 p.","startPage":"320","endPage":"330","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":197806,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"57","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f1e4b07f02db5ee649","contributors":{"authors":[{"text":"Rogers, J.G. Jr.","contributorId":46651,"corporation":false,"usgs":true,"family":"Rogers","given":"J.G.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":343337,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Beauchamp, G.K.","contributorId":51411,"corporation":false,"usgs":true,"family":"Beauchamp","given":"G.K.","email":"","affiliations":[],"preferred":false,"id":343338,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70209942,"text":"70209942 - 1976 - Natural hazards in mountain Colorado","interactions":[],"lastModifiedDate":"2020-05-07T12:23:05.932523","indexId":"70209942","displayToPublicDate":"1976-05-06T13:20:26","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5419,"text":"Annals of the American Association of Geographers","active":true,"publicationSubtype":{"id":10}},"title":"Natural hazards in mountain Colorado","docAbstract":"

Interdisciplinary field studies and remote sensing techniques were used to delineate mountain areas in Colorado subject to such natural hazards as snow avalanches, mudflows, rockfalls, and landslides. The old mining townsite of Ophir in the northwestern San Juan Mountains was used as a case study. Its serious snow avalanche hazard has been made even more critical with prospects of new housing developments. Techniques in remote sensing and geoecology have been applied to the solution of practical land management problems at the county and township levels of local government. The rapidly increasing hazard to human life and property results directly from accelerated growth of the winter recreation industry and construction of mountain homes. Many of the world's temperate zone high mountains urgently need development and application of new land management policies.

","language":"English","publisher":"Taylor & Francis Group","doi":"10.1111/j.1467-8306.1976.tb01076.x","usgsCitation":"Ives, J.D., Mears, A.I., Carrara, P.E., and Bovis, M.J., 1976, Natural hazards in mountain Colorado: Annals of the American Association of Geographers, v. 66, no. 1, p. 129-144, https://doi.org/10.1111/j.1467-8306.1976.tb01076.x.","productDescription":"16 p.","startPage":"129","endPage":"144","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":374495,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","otherGeospatial":"San Juan Mountains ","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -108.87451171875,\n 36.98500309285596\n ],\n [\n -104.468994140625,\n 36.98500309285596\n ],\n [\n -104.468994140625,\n 39.20671884491848\n ],\n [\n -108.87451171875,\n 39.20671884491848\n ],\n [\n -108.87451171875,\n 36.98500309285596\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"66","issue":"1","noUsgsAuthors":false,"publicationDate":"2010-03-15","publicationStatus":"PW","contributors":{"authors":[{"text":"Ives, Jack D.","contributorId":224551,"corporation":false,"usgs":false,"family":"Ives","given":"Jack","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":788595,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mears, Authur I.","contributorId":224552,"corporation":false,"usgs":false,"family":"Mears","given":"Authur","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":788596,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Carrara, Paul E. pcarrara@usgs.gov","contributorId":1342,"corporation":false,"usgs":true,"family":"Carrara","given":"Paul","email":"pcarrara@usgs.gov","middleInitial":"E.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":788597,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bovis, Michael J.","contributorId":224553,"corporation":false,"usgs":false,"family":"Bovis","given":"Michael","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":788598,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70232674,"text":"70232674 - 1976 - Marine diatom and silicoflagellate biostratigraphy of the type Delmontian Stage and the type Bolivina obliqua Zone, California","interactions":[],"lastModifiedDate":"2022-07-11T16:56:28.523122","indexId":"70232674","displayToPublicDate":"1976-05-01T11:34:15","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Marine diatom and silicoflagellate biostratigraphy of the type Delmontian Stage and the type Bolivina obliqua Zone, California","title":"Marine diatom and silicoflagellate biostratigraphy of the type Delmontian Stage and the type Bolivina obliqua Zone, California","docAbstract":"

Investigation of the marine diatom and silicoflagellate biostratigraphy of the type Delmontian Stage and and type Bolivina obliqua Zone in California shows that the type Delmontian Stage is equivalent to part of the supposedly older Mohnian Stage and is early late Miocene. The type Bolivina obliqua Zone, which conformably overlies the type Mohnian Stage, appears to be early Pliocene.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Barron, J.A., 1976, Marine diatom and silicoflagellate biostratigraphy of the type Delmontian Stage and the type Bolivina obliqua Zone, California: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 339-351.","productDescription":"13 p.","startPage":"339","endPage":"351","costCenters":[],"links":[{"id":403416,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403410,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"California","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -118.60588788986205,\n 34.16852938171516\n ],\n [\n -118.6058235168457,\n 34.15691756800955\n ],\n [\n -118.60320568084717,\n 34.15693532429547\n ],\n [\n -118.60163927078247,\n 34.15674000494494\n ],\n [\n -118.5995578765869,\n 34.157343717841286\n ],\n [\n -118.59921455383301,\n 34.157219424362516\n ],\n [\n -118.59857082366943,\n 34.15705961819241\n ],\n [\n -118.59627485275269,\n 34.157556791950675\n ],\n [\n -118.59659671783447,\n 34.158728689941874\n ],\n [\n -118.59646797180177,\n 34.159438923233175\n ],\n [\n -118.59625339508055,\n 34.16045099535124\n ],\n [\n -118.59732627868652,\n 34.16314979502432\n ],\n [\n -118.59728336334229,\n 34.163611423170224\n ],\n [\n -118.59691858291626,\n 34.165227101802884\n ],\n [\n -118.59749794006348,\n 34.16718007865011\n ],\n [\n -118.59745502471924,\n 34.16789024084665\n ],\n [\n -118.59964370727538,\n 34.16824531970441\n ],\n [\n -118.60230445861815,\n 34.16840510470308\n ],\n [\n -118.60588788986205,\n 34.16852938171516\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"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":846228,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232669,"text":"70232669 - 1976 - Mississippian history of the northern Rocky Mountains region","interactions":[],"lastModifiedDate":"2022-07-11T16:28:04.733861","indexId":"70232669","displayToPublicDate":"1976-05-01T11:11:04","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Mississippian history of the northern Rocky Mountains region","docAbstract":"

The Mississippian history of the northern Cordilleran region of the United States consists of two principal depositional cycles separated by a cycle of epeirogenic uplift and erosion. Each depositional cycle is divisible into phases that represent significant changes in depositional patterns. During Cycle I (early Kinderhookian-early Meramecian), predominantly carbonate and evaporite deposition took place on a broad cratonic shelf bordered on the east by land and on the west by a deep trough that received terrigenous sediments from an adjacent western landmass. Kinderhookian transgression was followed by regression during the Osagean and early Meramecian. Regional uplift during latest early Meramecian time (Cycle II) drained the shelf area and caused the sea to be confined to the western trough. During Cycle III (middle Meramecian-Chesterian), the sea again transgressed onto the craton, which was differentiated into the Big Snowy-Williston, Wyoming, and Uinta basins, where terrigenous and carbonate sediments were deposited. The Big Snowy-Williston basin was uplifted during latest Chesterian time and lost its identity, but the Wyoming basin continued to expand into the Pennsylvanian, when it engulfed most of the Cordilleran platform and breached the Transcontinental arch. Application of generalized carbonate, terrigenous, and evaporite depositional models results in specific models that explain the Mississippian depositional patterns.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Sando, W.J., 1976, Mississippian history of the northern Rocky Mountains region: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 317-338.","productDescription":"22 p.","startPage":"317","endPage":"338","costCenters":[],"links":[{"id":403405,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403402,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Colorado, Idaho, Montana, Nebraska, Nevada, North Dakota, South Dakota, Utah, Wyoming","otherGeospatial":"Rocky Mountains","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -116.6748046875,\n 40.413496049701955\n ],\n [\n -102.3486328125,\n 40.413496049701955\n ],\n [\n -102.3486328125,\n 49.06666839558117\n ],\n [\n -116.6748046875,\n 49.06666839558117\n ],\n [\n -116.6748046875,\n 40.413496049701955\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Sando, William Jasper","contributorId":8524,"corporation":false,"usgs":true,"family":"Sando","given":"William","email":"","middleInitial":"Jasper","affiliations":[],"preferred":true,"id":846220,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232666,"text":"70232666 - 1976 - Enhydra and Enhydriodon from the Pacific Coast of North America","interactions":[],"lastModifiedDate":"2022-07-11T16:09:13.223991","indexId":"70232666","displayToPublicDate":"1976-05-01T10:50:57","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Enhydra and Enhydriodon from the Pacific Coast of North America","title":"Enhydra and Enhydriodon from the Pacific Coast of North America","docAbstract":"

Two lineages of the \"crab-eating\" otter Erihydriodon, from the Old World Miocene and Pliocene, are suggested by the fossil record. One appears to lead to the late Pliocene Enhydriodon sivalensis from Villafranchian-equivalent beds in India and can be characterized by the presence of a parastyle on P4 and by the location of the protocone of this tooth, which is located as far lingually as is the hypocone. In the other lineage no parastyle is developed on P4, the anteroposterior length of the carnassial blade is progressively reduced while the transverse width is increased, and the protocone of P4 remains in its primitive position anterolateral to the hypocone. The second lineage, insofar as it is known, seems to lead toward the living sea otter Enhydra, particularly so because of the evolutionary direction shown by two species of Enhydriodon from the late Miocene and late Pliocene of California.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Repenning, C.A., 1976, Enhydra and Enhydriodon from the Pacific Coast of North America: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 305-315.","productDescription":"11 p.","startPage":"305","endPage":"315","costCenters":[],"links":[{"id":403399,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403395,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"Canada, Costa Rica, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, United States","otherGeospatial":"Pacific Ocean","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -77.6513671875,\n 7.623886853120049\n ],\n [\n -77.95898437499999,\n 8.754794702435618\n ],\n [\n -79.0576171875,\n 9.188870084473406\n ],\n [\n -80.7275390625,\n 8.667918002363121\n ],\n [\n -82.44140625,\n 8.53756535080403\n ],\n [\n -84.287109375,\n 10.098670120603392\n ],\n [\n -84.638671875,\n 11.738302371436854\n ],\n [\n -86.30859375,\n 12.983147716796578\n ],\n [\n -87.4951171875,\n 14.00869637063467\n ],\n [\n -88.505859375,\n 13.838079936422462\n ],\n [\n -90.439453125,\n 14.689881366618762\n ],\n [\n -91.8896484375,\n 14.817370620155254\n ],\n [\n -93.4716796875,\n 16.551961721972525\n ],\n [\n -94.74609375,\n 16.804541076383455\n ],\n [\n -96.5478515625,\n 16.214674588248542\n ],\n [\n -98.7451171875,\n 16.846605106396304\n ],\n [\n -101.7333984375,\n 18.22935133838668\n ],\n [\n -103.0078125,\n 18.562947442888312\n ],\n [\n -104.0185546875,\n 19.435514339097825\n ],\n [\n -104.765625,\n 19.932041306115536\n ],\n [\n -104.8974609375,\n 20.838277806058933\n ],\n [\n -104.80957031249999,\n 21.53484700204879\n ],\n [\n -105.4248046875,\n 22.958393318086348\n ],\n [\n -106.8310546875,\n 24.44714958973082\n ],\n [\n -108.19335937499999,\n 25.60190226111573\n ],\n [\n -108.7646484375,\n 25.958044673317843\n ],\n [\n -108.8525390625,\n 26.745610382199022\n ],\n [\n -109.86328125,\n 27.293689224852407\n ],\n [\n -110.3466796875,\n 28.14950321154457\n ],\n [\n -111.0498046875,\n 28.38173504322308\n ],\n [\n -112.1044921875,\n 29.649868677972304\n ],\n [\n -112.8955078125,\n 31.466153715024294\n ],\n [\n -114.9169921875,\n 32.21280106801518\n ],\n [\n -116.630859375,\n 32.39851580247402\n ],\n [\n -116.89453125,\n 33.394759218577995\n ],\n [\n -118.21289062499999,\n 34.34343606848294\n ],\n [\n -120.0146484375,\n 34.92197103616377\n ],\n [\n -121.33300781249999,\n 36.66841891894786\n ],\n [\n -122.03613281249999,\n 38.30718056188316\n ],\n [\n -123.1787109375,\n 39.095962936305476\n ],\n [\n -123.3544921875,\n 39.80853604144591\n ],\n [\n -123.837890625,\n 40.48038142908172\n ],\n [\n -123.70605468750001,\n 41.21172151054787\n ],\n [\n -123.96972656249999,\n 42.8115217450979\n ],\n [\n -123.3984375,\n 45.02695045318546\n ],\n [\n -123.48632812499999,\n 46.46813299215554\n ],\n [\n -121.81640624999999,\n 47.249406957888446\n ],\n [\n -121.904296875,\n 47.96050238891509\n ],\n [\n -122.3876953125,\n 49.32512199104001\n ],\n [\n -123.3544921875,\n 50.0923932109388\n ],\n [\n -125.3759765625,\n 50.93073802371819\n ],\n [\n -127.0458984375,\n 51.34433866059924\n ],\n [\n -127.7490234375,\n 52.802761415419674\n ],\n [\n -129.1552734375,\n 53.87844040332883\n ],\n [\n -129.7265625,\n 54.80068486732233\n ],\n [\n -129.6826171875,\n 55.62799595426723\n ],\n [\n -131.1328125,\n 56.24334992410525\n ],\n [\n -131.9677734375,\n 56.77680831656842\n ],\n [\n -133.2861328125,\n 58.19387126497797\n ],\n [\n -135.2197265625,\n 59.489726035537075\n ],\n [\n -137.76855468749997,\n 59.55659188568175\n ],\n [\n -139.1748046875,\n 60.174306261926034\n ],\n [\n -141.4599609375,\n 60.54377524118842\n ],\n [\n -144.2724609375,\n 60.75915950226991\n ],\n [\n -145.98632812499997,\n 61.2913492826376\n ],\n [\n -147.8759765625,\n 61.52269494598361\n ],\n [\n -149.23828125,\n 61.73152565113397\n ],\n [\n -151.611328125,\n 61.56457388515458\n ],\n [\n -153.369140625,\n 60.52215754533236\n ],\n [\n -155.8740234375,\n 59.93300042374631\n ],\n [\n -157.939453125,\n 59.33318942659219\n ],\n [\n -160.7958984375,\n 59.28833169203345\n ],\n [\n -161.9384765625,\n 60.50052541051131\n ],\n [\n -163.0810546875,\n 60.52215754533236\n ],\n [\n -163.6083984375,\n 61.37567331572747\n ],\n [\n -164.443359375,\n 62.28836509824845\n ],\n [\n -162.0703125,\n 63.11463763252091\n ],\n [\n -160.7080078125,\n 63.23362741232569\n ],\n [\n -160.048828125,\n 63.68524808030715\n ],\n [\n -160.3125,\n 64.28275952823394\n ],\n [\n -160.26855468749997,\n 65.10914820386473\n ],\n [\n -161.1474609375,\n 65.33017791526855\n ],\n [\n -162.9931640625,\n 64.8115572502203\n ],\n [\n -165.0146484375,\n 64.8115572502203\n ],\n [\n -165.0146484375,\n 65.4034447883078\n ],\n [\n -166.201171875,\n 65.56754970214311\n ],\n [\n -164.8388671875,\n 66.12496236487968\n ],\n [\n -163.4326171875,\n 65.82078234733756\n ],\n [\n -161.54296875,\n 65.76672667423811\n ],\n [\n -158.2470703125,\n 66.53076810915225\n ],\n [\n -158.994140625,\n 66.86108230224609\n ],\n [\n -161.5869140625,\n 67.23806155909902\n ],\n [\n -163.0810546875,\n 67.37369797436554\n ],\n [\n -163.2568359375,\n 67.7261081859507\n ],\n [\n -164.970703125,\n 68.23682270936281\n ],\n [\n -165.7177734375,\n 68.52823492039876\n ],\n [\n -163.5205078125,\n 68.76823505122316\n ],\n [\n -162.7294921875,\n 69.2249968541159\n ],\n [\n -160.6201171875,\n 69.91521433690129\n ],\n [\n -158.6865234375,\n 70.28911664330674\n ],\n [\n -157.060546875,\n 70.61261423801925\n ],\n [\n -156.7529296875,\n 71.44117085172385\n ],\n [\n -157.9833984375,\n 71.15939141681443\n ],\n [\n -159.7412109375,\n 71.07405646336098\n ],\n [\n -162.5537109375,\n 70.4367988185464\n ],\n [\n -163.7841796875,\n 69.79413569863112\n ],\n [\n -163.9599609375,\n 69.28725695167886\n ],\n [\n -166.640625,\n 69.11561106499448\n ],\n [\n -167.2119140625,\n 68.25311055665718\n ],\n [\n -165.6298828125,\n 67.67608458198097\n ],\n [\n -164.61914062499997,\n 67.33986082559095\n ],\n [\n -164.61914062499997,\n 66.84380738188501\n ],\n [\n -168.7060546875,\n 65.89268028960205\n ],\n [\n -168.662109375,\n 65.09064558256851\n ],\n [\n -167.2998046875,\n 65.10914820386473\n ],\n [\n -167.03613281249997,\n 64.49172504435471\n ],\n [\n -166.1572265625,\n 64.11060221954631\n ],\n [\n -164.091796875,\n 64.28275952823394\n ],\n [\n -162.94921875,\n 64.16810689799152\n ],\n [\n -161.982421875,\n 64.33990785750463\n ],\n [\n -161.630859375,\n 63.93737246791484\n ],\n [\n -163.0810546875,\n 63.74363097533544\n ],\n [\n -163.388671875,\n 63.35212928507874\n ],\n [\n -164.61914062499997,\n 63.54855223203644\n ],\n [\n -166.9482421875,\n 61.60639637138628\n ],\n [\n -166.4208984375,\n 60.88770004207789\n ],\n [\n -167.958984375,\n 60.50052541051131\n ],\n [\n -167.6953125,\n 59.77852198502987\n ],\n [\n -165.76171875,\n 59.55659188568175\n ],\n [\n -165.146484375,\n 59.84481485969105\n ],\n [\n -164.13574218749997,\n 59.489726035537075\n ],\n [\n -162.5537109375,\n 59.66774058164963\n ],\n [\n -162.5537109375,\n 58.401711667608\n ],\n [\n -161.19140625,\n 58.240163543416415\n ],\n [\n -160.26855468749997,\n 58.58543569119917\n ],\n [\n -159.2138671875,\n 58.10110549730587\n ],\n [\n -157.9833984375,\n 58.44773280389084\n ],\n [\n -158.291015625,\n 57.68066002977235\n ],\n [\n -161.1474609375,\n 56.43820369358165\n ],\n [\n -165.3662109375,\n 54.97761367069628\n ],\n [\n -169.3212890625,\n 53.4357192066942\n ],\n [\n -168.92578125,\n 52.53627304145948\n ],\n [\n -166.904296875,\n 53.067626642387374\n ],\n [\n -161.982421875,\n 54.34214886448341\n ],\n [\n -159.03808593749997,\n 54.826007999094955\n ],\n [\n -157.58789062499997,\n 56.12106042504407\n ],\n [\n -155.17089843749997,\n 55.32914440840507\n ],\n [\n -151.8310546875,\n 57.42129439209407\n ],\n [\n -151.5673828125,\n 58.65408464530598\n ],\n [\n -149.7216796875,\n 59.46740794183739\n ],\n [\n -148.974609375,\n 59.712097173322924\n ],\n [\n -147.6123046875,\n 59.5343180010956\n ],\n [\n -146.7333984375,\n 59.977005492196\n ],\n [\n -145.810546875,\n 60.06484046010452\n ],\n [\n -144.31640625,\n 59.489726035537075\n ],\n [\n -142.6904296875,\n 59.82273188377389\n ],\n [\n -139.8779296875,\n 59.130863097255904\n ],\n [\n -137.548828125,\n 58.10110549730587\n ],\n [\n -135.4833984375,\n 55.97379820507658\n ],\n [\n -133.41796874999997,\n 54.39335222384589\n ],\n [\n -133.7255859375,\n 53.64463782485651\n ],\n [\n -131.5283203125,\n 51.754240074033525\n ],\n [\n -129.8583984375,\n 51.781435604431195\n ],\n [\n -128.935546875,\n 51.069016659603896\n ],\n [\n -128.9794921875,\n 50.401515322782366\n ],\n [\n -125.771484375,\n 48.31242790407178\n ],\n [\n -125.1123046875,\n 46.73986059969267\n ],\n [\n -125.2880859375,\n 44.24519901522129\n ],\n [\n -125.63964843750001,\n 42.61779143282346\n ],\n [\n -125.0244140625,\n 41.44272637767212\n ],\n [\n -125.46386718749999,\n 40.44694705960048\n ],\n [\n -124.5849609375,\n 39.198205348894795\n ],\n [\n -124.18945312500001,\n 38.44498466889473\n ],\n [\n -123.26660156249999,\n 37.64903402157866\n ],\n [\n -122.6513671875,\n 36.38591277287651\n ],\n [\n -121.6845703125,\n 35.10193405724606\n ],\n [\n -121.201171875,\n 33.797408767572485\n ],\n [\n -118.0810546875,\n 32.91648534731439\n ],\n [\n -117.158203125,\n 31.203404950917395\n ],\n [\n -119.0478515625,\n 29.49698759653577\n ],\n [\n -119.00390625,\n 28.65203063036226\n ],\n [\n -114.12597656249999,\n 26.54922257769204\n ],\n [\n -112.9833984375,\n 25.958044673317843\n ],\n [\n -112.8515625,\n 24.44714958973082\n ],\n [\n -110.0830078125,\n 22.471954507739227\n ],\n [\n -107.666015625,\n 22.917922936146045\n ],\n [\n -106.3916015625,\n 21.289374355860424\n ],\n [\n -106.3916015625,\n 20.179723502765153\n ],\n [\n -105.2490234375,\n 18.145851771694467\n ],\n [\n -96.94335937499999,\n 14.859850400601037\n ],\n [\n -94.74609375,\n 15.284185114076433\n ],\n [\n -91.93359375,\n 13.453737213419249\n ],\n [\n -88.3740234375,\n 12.425847783029134\n ],\n [\n -86.9677734375,\n 10.660607953624776\n ],\n [\n -86.17675781249999,\n 9.362352822055605\n ],\n [\n -83.6279296875,\n 7.841615185204699\n ],\n [\n -80.6396484375,\n 6.35897532723566\n ],\n [\n -79.4970703125,\n 7.27529233637217\n ],\n [\n -78.046875,\n 6.926426847059551\n ],\n [\n -77.6513671875,\n 7.623886853120049\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Repenning, Charles Albert","contributorId":106883,"corporation":false,"usgs":true,"family":"Repenning","given":"Charles","email":"","middleInitial":"Albert","affiliations":[],"preferred":false,"id":846213,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232664,"text":"70232664 - 1976 - Epifauna at Jackson Point in Port Valdez, Alaska, December 1970 through September 1972","interactions":[],"lastModifiedDate":"2022-07-11T15:49:38.582231","indexId":"70232664","displayToPublicDate":"1976-05-01T10:29:41","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Epifauna at Jackson Point in Port Valdez, Alaska, December 1970 through September 1972","docAbstract":"

A biological sampling program at Jackson Point in Port Valdez, Alaska, was begun in December 1970. Sixteen artificial substrate samplers (8 multiplate and 8 rock-fllled baskets with net liners) were retrieved after 2 to 4 months' exposure. The most common groups in order of their abundance were Copepoda, Foraminifera, Nematoda, and Ostracoda during winter; Copepoda, Nematoda, Cirripedra, and Foraminifera, during spring; Pelecypoda, Amphipoda, Insecta, and Cirripedia during summer; and Pelecypoda, Copepoda, Insecta, and Nematoda during fall. The most abundant species collected during the study were the blue mussels (Mytilus edulis), copepods (Harpacticus sp.), midges (Clunio sp., Ghironomidae), and fairy shrimp (unidentified amphipods). During the summer and fall of 1972 the total number of epifaunal organisms was 22 times greater than during the same period in 1971, with Mytilus edulis comprising 88 percent of the community in 1972 (more than triple the percentage for 1971). The two sampler types collected approximately the same major groups of organisms; however, the multiplate samplers collected an average of 1.6 times more organisms than the basket samplers. The basket sampler, on the other hand, collected three more species per sample than did the multiplate samplers, resulting in species diversities 0.3 to 0.6 greater than those of the multiplate samplers. Diversity values were lower during 1972, except for the spring sample. Seasonal diversity varied from a low of 0.36 in the summer of 1972 to a high of 3.99 in the fall of 1971.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Nauman, J.W., and Kernodle, D.R., 1976, Epifauna at Jackson Point in Port Valdez, Alaska, December 1970 through September 1972: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 299-304.","productDescription":"6 p.","startPage":"299","endPage":"304","costCenters":[],"links":[{"id":403394,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403392,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","city":"Port Valdez","otherGeospatial":"Jackson Point","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -146.38735055923462,\n 61.088591529349145\n ],\n [\n -146.37964725494382,\n 61.088591529349145\n ],\n [\n -146.37964725494382,\n 61.09176576981667\n ],\n [\n -146.38735055923462,\n 61.09176576981667\n ],\n [\n -146.38735055923462,\n 61.088591529349145\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Nauman, Jon W.","contributorId":56232,"corporation":false,"usgs":true,"family":"Nauman","given":"Jon","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":846210,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kernodle, Donald R.","contributorId":63003,"corporation":false,"usgs":true,"family":"Kernodle","given":"Donald","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":846211,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70232659,"text":"70232659 - 1976 - Development of a standard rating for the Price pygmy current meter","interactions":[],"lastModifiedDate":"2022-07-11T15:27:58.997377","indexId":"70232659","displayToPublicDate":"1976-05-01T10:01:25","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Development of a standard rating for the Price pygmy current meter","docAbstract":"

Fifty new Price pygmy current meters, 50 used Price pygmy meters with used rotors, 50 used Price pygmy meters with new rotors, and 26 used Price pygmy meters with straight uniform (nonbeaded) contact wires were rated individually in a towing tank. A standard rating of V=0.961N+0.039 (V=0.293N+0.012), where V is the velocity in feet per second (metres per second) and N is the meter rotation in revolutions per second, was established for the group of new meters. Repeated ratings of two new meters showed that under the best rating conditions, the individual Price pygmy rating is repeatable to within 1 percent.

The standard errors of velocities predicted using the individual ratings and the standard ratings were compared. The use of the standard rating resulted in statistically higher standard errors than the individual ratings for all groups of meters. However, the differences are a fraction of 1 percent higher and are not of concern for practical purposes. The individual ratings and standard rating for the used meters with new straight contact wires were found to be statistically similar to the ratings for the new meters. Continuation of the use of individual ratings of Price pygmy current meters is probably unnecessary with the implementation of precise standards in their manufacture, rating of a random sample, and use.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Schneider, V.R., and Smoot, G.F., 1976, Development of a standard rating for the Price pygmy current meter: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 293-297.","productDescription":"5 p.","startPage":"293","endPage":"297","costCenters":[],"links":[{"id":403387,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403384,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Schneider, Verne R. vrschnei@usgs.gov","contributorId":279,"corporation":false,"usgs":true,"family":"Schneider","given":"Verne","email":"vrschnei@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":true,"id":846202,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smoot, George F.","contributorId":34116,"corporation":false,"usgs":true,"family":"Smoot","given":"George","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":846203,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70232658,"text":"70232658 - 1976 - A simplified slope-area method for estimating flood discharges in natural channels","interactions":[],"lastModifiedDate":"2022-07-11T15:00:24.302283","indexId":"70232658","displayToPublicDate":"1976-05-01T09:55:20","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"A simplified slope-area method for estimating flood discharges in natural channels","docAbstract":"

Discharge of a stream may be computed from the slope of the water surface, the cross-sectional area, and an estimate of channel roughness. This, the slope-area method, is widely used to compute flood peak discharges from high-water marks. Reliability of a computed discharge depends largely on the roughness coefficient, which must be estimated. This paper shows that results of comparable accuracy can be obtained from area and slope alone in natural channels; a roughness coefficient is not needed because roughness and slope are related. The estimating equation and suggestions for application of the simplified method are included.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Riggs, H.C., 1976, A simplified slope-area method for estimating flood discharges in natural channels: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 285-291.","productDescription":"7 p.","startPage":"285","endPage":"291","costCenters":[],"links":[{"id":403382,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403381,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Riggs, H. C.","contributorId":17210,"corporation":false,"usgs":true,"family":"Riggs","given":"H.","email":"","middleInitial":"C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":846201,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232656,"text":"70232656 - 1976 - Two-dimensional steady-state dispersion in a saturated porous medium","interactions":[],"lastModifiedDate":"2022-07-11T14:53:23.437419","indexId":"70232656","displayToPublicDate":"1976-05-01T09:40:50","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Two-dimensional steady-state dispersion in a saturated porous medium","docAbstract":"

A previously developed analytical solution for two-dimensional dispersion is computed for various conditions. These results were then compared with solution of previously developed approximate models of transverse dispersion which were used to analyze experimentally derived concentration distribution. Comparison established that, whenever steady state was reached, the values of dispersion coefficient computed using the approximate expression agreed with values derived from exact expression and in addition allowed a quick computation of the parameter.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Ogata, A., 1976, Two-dimensional steady-state dispersion in a saturated porous medium: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 277-284.","productDescription":"8 p.","startPage":"277","endPage":"284","costCenters":[],"links":[{"id":403380,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403378,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","text":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ogata, Akio","contributorId":22396,"corporation":false,"usgs":true,"family":"Ogata","given":"Akio","email":"","affiliations":[],"preferred":false,"id":846198,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232654,"text":"70232654 - 1976 - Factors affecting declining water levels in a sewered area of Nassau County, New York","interactions":[],"lastModifiedDate":"2022-07-12T13:37:45.149132","indexId":"70232654","displayToPublicDate":"1976-05-01T09:21:03","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Factors affecting declining water levels in a sewered area of Nassau County, New York","docAbstract":"

Double-mass-curve analysis of ground-water levels in Nassau County, Long Island, N.Y., shows that the average-weighted ground-water levels in a 32-mi2 (83-km2) segment of a sewered area declined 11.8 ft (3.6 m) relative to an adjacent unsewered area to the east during 1953-72. Electric-analog-model analysis indicates that 4.9 ft (1.5 m) of the decline is due to pumping in nearby Queens County, west of the sewered area. Most of the remaining 6.9 ft (2.1 m) of the decline is due to sewering. Streamflow within the sewered area has also declined because of the lowered ground-water levels.

","language":"English","publisher":"U. S. Geological Survey","collaboration":"Prepared in cooperation with the Nassau County Department of Public Works","usgsCitation":"Garber, M.S., and Sulam, D.J., 1976, Factors affecting declining water levels in a sewered area of Nassau County, New York: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 255-265.","productDescription":"11 p.","startPage":"255","endPage":"265","costCenters":[],"links":[{"id":403377,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403375,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"New York","county":"Nassau County","city":"Hempstead, North Hempstead","otherGeospatial":"Long Island, Sewer District 2","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -73.73748779296875,\n 40.59518511581991\n ],\n [\n -73.70590209960938,\n 40.590492461114074\n ],\n [\n -73.68461608886719,\n 40.5920567159421\n ],\n [\n -73.67431640625,\n 40.596227883251956\n ],\n [\n -73.65165710449219,\n 40.593620934177494\n ],\n [\n -73.63037109375,\n 40.596227883251956\n ],\n [\n -73.59603881835938,\n 40.59414233212419\n ],\n [\n -73.58367919921875,\n 40.60196281341108\n ],\n [\n -73.54866027832031,\n 40.60978237983301\n ],\n [\n -73.5589599609375,\n 40.620728235777136\n ],\n [\n -73.56239318847655,\n 40.626982205446545\n ],\n [\n -73.56170654296875,\n 40.635319920747456\n ],\n [\n -73.564453125,\n 40.6426145676101\n ],\n [\n -73.56651306152344,\n 40.66293116628907\n ],\n [\n -73.57406616210938,\n 40.69001034095325\n ],\n [\n -73.57887268066406,\n 40.707710007867334\n ],\n [\n -73.5809326171875,\n 40.72644570551446\n ],\n [\n -73.58573913574217,\n 40.73581157695217\n ],\n [\n -73.59397888183594,\n 40.73737242735457\n ],\n [\n -73.60702514648438,\n 40.73737242735457\n ],\n [\n -73.61183166503906,\n 40.74725696280421\n ],\n [\n -73.61663818359374,\n 40.75453936473234\n ],\n [\n -73.62556457519531,\n 40.762341053140275\n ],\n [\n -73.62487792968749,\n 40.776901754952384\n ],\n [\n -73.62213134765625,\n 40.78782018739577\n ],\n [\n -73.62213134765625,\n 40.798217025760536\n ],\n [\n -73.62762451171875,\n 40.810171377120604\n ],\n [\n -73.6468505859375,\n 40.805493843894155\n ],\n [\n -73.65715026855469,\n 40.8034148344062\n ],\n [\n -73.66813659667969,\n 40.79613778833378\n ],\n [\n -73.69903564453125,\n 40.79249896613324\n ],\n [\n -73.707275390625,\n 40.78626052122175\n ],\n [\n -73.72993469238281,\n 40.77586181063573\n ],\n [\n -73.73886108398438,\n 40.769101775774935\n ],\n [\n -73.75534057617188,\n 40.762861133145016\n ],\n [\n -73.74984741210938,\n 40.758700379161006\n ],\n [\n -73.73817443847656,\n 40.74985791219436\n ],\n [\n -73.72512817382812,\n 40.73997376331186\n ],\n [\n -73.72306823730469,\n 40.72956780913897\n ],\n [\n -73.72993469238281,\n 40.71603763556807\n ],\n [\n -73.72650146484375,\n 40.6920928987952\n ],\n [\n -73.72581481933592,\n 40.68376227690408\n ],\n [\n -73.74298095703125,\n 40.66553541102791\n ],\n [\n -73.75877380371094,\n 40.64938745451835\n ],\n [\n -73.74366760253906,\n 40.639488387988365\n ],\n [\n -73.740234375,\n 40.629587853312174\n ],\n [\n -73.74366760253906,\n 40.617079816381285\n ],\n [\n -73.74229431152344,\n 40.606654663050485\n ],\n [\n -73.73748779296875,\n 40.59518511581991\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Garber, Murray S.","contributorId":93500,"corporation":false,"usgs":true,"family":"Garber","given":"Murray","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":846196,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sulam, Dennis J.","contributorId":34148,"corporation":false,"usgs":true,"family":"Sulam","given":"Dennis","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":846197,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70232652,"text":"70232652 - 1976 - Intermediate-scale mapping","interactions":[],"lastModifiedDate":"2022-07-11T14:19:21.785153","indexId":"70232652","displayToPublicDate":"1976-05-01T09:10:27","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Intermediate-scale mapping","docAbstract":"

The U.S. Geological Survey has introduced an intermediate-scale map series (1:100,000 and 1:50,000) in response to the demand for maps at scales between the 1:24,000 and 1:250,000 standard series. The goal is to provide basic cartographic data at the level of detail and in the format selected by Federal, State, regional, county, and other users. A major innovation is the preparation of feature-separation drawings which provide great flexibility in constructing maps. The new series is designed with digitization in mind, ultimately to facilitate forming a digital cartographic data bas

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Ward, J.L., 1976, Intermediate-scale mapping: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 253-254.","productDescription":"2 p.","startPage":"253","endPage":"254","costCenters":[],"links":[{"id":403372,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403371,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Ward, J. LeRoy","contributorId":292920,"corporation":false,"usgs":false,"family":"Ward","given":"J.","email":"","middleInitial":"LeRoy","affiliations":[],"preferred":false,"id":846192,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70232743,"text":"70232743 - 1976 - A reconnaissance study of the uranium and thorium contents of plutonic rocks of the southeastern Seward Peninsula, Alaska","interactions":[],"lastModifiedDate":"2022-07-12T14:15:45.880843","indexId":"70232743","displayToPublicDate":"1976-05-01T09:04:13","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"A reconnaissance study of the uranium and thorium contents of plutonic rocks of the southeastern Seward Peninsula, Alaska","docAbstract":"

Large granitic Cretaceous plutons are exposed along and adjacent to an arcuate belt of igneous and high-grade raetamorphic rocks in the southeastern Seward Peninsula of Alaska. Reconnaissance studies of these plutons have shown that the Darby pluton has well above average amounts of uranium and thorium (11.2 ppm and 58.7 ppm, respectively), the Kachauik pluton contains average to above average uranium and thorium (5.7 ppm and 22.5 ppm, respectively), and the Bendeleben pluton contains average amounts of uranium and thorium (3.4 ppm and 16.7 ppm, respectively). The three plutons show compositional and textural differences indicative of different source materials that may have controlled the distribution of uranium and thorium.

The high uranium and thorium contents of the Darby pluton, similar to those of the Conway Granite of New Hampshire which has been mentioned as a possible low-grade thorium resource, suggest that this pluton may be a favorable area for economic concentrations of uranium and thorium.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Miller, T.P., and Bunker, C., 1976, A reconnaissance study of the uranium and thorium contents of plutonic rocks of the southeastern Seward Peninsula, Alaska: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 367-377.","productDescription":"11 p.","startPage":"367","endPage":"377","costCenters":[],"links":[{"id":403486,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403485,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Seward Peninsula","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -163.663330078125,\n 64.29944003316692\n ],\n [\n -161.5704345703125,\n 64.29944003316692\n ],\n [\n -161.5704345703125,\n 65.97108846262783\n ],\n [\n -163.663330078125,\n 65.97108846262783\n ],\n [\n -163.663330078125,\n 64.29944003316692\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Miller, Thomas P. tmiller@usgs.gov","contributorId":4183,"corporation":false,"usgs":true,"family":"Miller","given":"Thomas","email":"tmiller@usgs.gov","middleInitial":"P.","affiliations":[{"id":121,"text":"Alaska Volcano Observatory","active":false,"usgs":true}],"preferred":false,"id":846373,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bunker, Carl M.","contributorId":45311,"corporation":false,"usgs":true,"family":"Bunker","given":"Carl M.","affiliations":[],"preferred":false,"id":846374,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70232736,"text":"70232736 - 1976 - Ocher as a prospecting medium in the Montezuma district of central Colorado","interactions":[],"lastModifiedDate":"2022-07-12T14:01:59.566195","indexId":"70232736","displayToPublicDate":"1976-05-01T08:50:59","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Ocher as a prospecting medium in the Montezuma district of central Colorado","docAbstract":"

Ocher occurs widely In the Montezuma district as small sinters and as bedded deposits of bog iron and ocher-cemented conglomerates. The iron of the ochers is derived from pyrite-rich veins and from pyritic hydrothermally altered rocks. Trace amounts of ore metals in the ocher and its admixed detritus are partly from the pyritic source rocks but also include contributions from other rocks and ores in the watershed, both during and after formation of the ocher deposit. Ocher is evidence for the presence and character of the generally ill exposed pyritic rocks, which are important, in evaluating the porphyry-metal system of ore deposits. The trace-element composition of the ocher is at best a qualitative guide to the ore metals present in the provenance of the ocher deposit but not to their abundance or necessarily to their mode of occurrence.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Neuerburg, G.J., and Botinelly, T., 1976, Ocher as a prospecting medium in the Montezuma district of central Colorado: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 359-365.","productDescription":"7 p.","startPage":"359","endPage":"365","costCenters":[],"links":[{"id":403481,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403479,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265 KB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Colorado","otherGeospatial":"Montezuma district","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -106.96975708007811,\n 38.96261229874331\n ],\n [\n -105.81619262695312,\n 38.96261229874331\n ],\n [\n -105.81619262695312,\n 39.49026449493615\n ],\n [\n -106.96975708007811,\n 39.49026449493615\n ],\n [\n -106.96975708007811,\n 38.96261229874331\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Neuerburg, George J.","contributorId":103661,"corporation":false,"usgs":true,"family":"Neuerburg","given":"George","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":846367,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Botinelly, Theodore","contributorId":101253,"corporation":false,"usgs":true,"family":"Botinelly","given":"Theodore","email":"","affiliations":[],"preferred":false,"id":846368,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70232732,"text":"70232732 - 1976 - Sediment-filled pots in upland gravels of Maryland and Virginia","interactions":[],"lastModifiedDate":"2022-07-12T13:50:28.806634","indexId":"70232732","displayToPublicDate":"1976-05-01T08:41:04","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Sediment-filled pots in upland gravels of Maryland and Virginia","docAbstract":"

Pot-shaped depressions filled with sandy clayey silt are found in \"Upland\" gravels (previously termed Brandywine) of probable Miocene age, in northeastern Maryland and in Virginia near Washington, D.C. The pots are about 7 ft (2m) deep and commonly are about as wide. In plan, many are strongly elliptical. Sides are steep or even bulbous, and the filling in some pots shows faint stratification paralleling the sides. Strata in the enclosing gravel commonly bend downward and are thinner beside and below the pots. The gravel deposits are remnants of alluvial deposits of the ancestral Susquehanna and Potomac Rivers. All the pots are at the present gravel surface. We suggest that the pots originated when seasonal frost in an overlying layer of sandy clayey silt provided a confining upper layer. The freezing plane in the silt moved downward, reaching the gravel at some points before others. Water in the gravel moved toward the freezing plane by capillarity or by cryostatic head, forming ice lenses in the silt. Each winter, ice growth forced unfrozen clayey silt a short distance downward and outward into the gravel, increasing the irregularity of the silt-gravel contact and promoting more rapid movement. The pots probably reflect some centuries of growth, probably during the Illinoian Glaciation.

","language":"English","publisher":"U. S. Geological Survey","usgsCitation":"Conant, L.C., Black, R.F., and Hosterman, J.W., 1976, Sediment-filled pots in upland gravels of Maryland and Virginia: Journal of Research of the U.S. Geological Survey, v. 4, no. 3, p. 353-358.","productDescription":"6 p.","startPage":"353","endPage":"358","costCenters":[],"links":[{"id":403474,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403473,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue3/report.pdf","size":"16265","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Maryland, Virginia","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[-76.048373,38.12055],[-76.063661,38.126078],[-76.090872,38.11446],[-76.095548,38.125123],[-76.088639,38.192649],[-76.07147,38.203502],[-76.046539,38.201549],[-76.02217,38.177882],[-76.034038,38.157902],[-76.015155,38.131548],[-76.011916,38.122214],[-76.021305,38.108608],[-76.008168,38.095385],[-76.005904,38.07717],[-76.0233,38.07076],[-76.05831,38.094906],[-76.03962,38.11199],[-76.048373,38.12055]]],[[[-76.04653,37.953586],[-76.048617,38.014843],[-76.041668,38.032148],[-76.013128,38.039762],[-75.970172,38.015688],[-75.98502,38.001855],[-75.99473,37.974694],[-75.988879,37.960337],[-76.032491,37.915008],[-76.04653,37.953586]]],[[[-77.719029,39.321125],[-77.761115,39.339757],[-77.743874,39.359947],[-77.753274,39.37832],[-77.735905,39.389665],[-77.75268,39.420174],[-77.803249,39.437136],[-77.78856,39.442829],[-77.796196,39.461722],[-77.777815,39.461924],[-77.797787,39.47876],[-77.765551,39.493025],[-77.768442,39.497783],[-77.80183,39.489395],[-77.845666,39.498628],[-77.829045,39.514425],[-77.827188,39.530458],[-77.839061,39.531117],[-77.840651,39.520941],[-77.860195,39.514325],[-77.864315,39.534813],[-77.886436,39.551947],[-77.878451,39.563493],[-77.83633,39.56637],[-77.829814,39.587288],[-77.838008,39.606125],[-77.885124,39.615775],[-77.881823,39.600039],[-77.888477,39.597343],[-77.923298,39.604852],[-77.94194,39.61879],[-77.936371,39.594508],[-77.946182,39.584814],[-77.957642,39.608614],[-77.984815,39.59942],[-78.009985,39.602893],[-78.035992,39.63572],[-78.097118,39.678161],[-78.182759,39.69511],[-78.201081,39.677866],[-78.233138,39.672875],[-78.223864,39.662607],[-78.254077,39.640089],[-78.263371,39.621675],[-78.351905,39.640486],[-78.358264,39.63966],[-78.353878,39.627722],[-78.380504,39.629359],[-78.372404,39.612297],[-78.378181,39.608178],[-78.43025,39.62329],[-78.425581,39.607599],[-78.395317,39.584215],[-78.408031,39.578593],[-78.443175,39.591155],[-78.457187,39.587379],[-78.454376,39.574319],[-78.420019,39.551745],[-78.459274,39.535919],[-78.462899,39.52084],[-78.474178,39.51624],[-78.521388,39.52479],[-78.565929,39.519444],[-78.597659,39.53505],[-78.655984,39.534695],[-78.689455,39.54577],[-78.72501,39.563973],[-78.733149,39.58369],[-78.756747,39.58069],[-78.76749,39.587487],[-78.778141,39.601364],[-78.733759,39.613931],[-78.748499,39.626262],[-78.777516,39.621712],[-78.76534,39.643987],[-78.775241,39.645687],[-78.801741,39.627488],[-78.795857,39.606934],[-78.809347,39.608063],[-78.824788,39.590233],[-78.816764,39.561691],[-78.838553,39.5673],[-78.851196,39.559924],[-78.874744,39.522611],[-78.891197,39.5189],[-78.916488,39.486544],[-78.942618,39.479614],[-78.955483,39.442277],[-78.965484,39.438455],[-79.017147,39.466977],[-79.028159,39.46506],[-79.046276,39.483801],[-79.054989,39.473096],[-79.098059,39.472073],[-79.104217,39.448358],[-79.132193,39.418275],[-79.149581,39.407767],[-79.159213,39.413021],[-79.16722,39.393256],[-79.195543,39.38779],[-79.213961,39.36532],[-79.25227,39.356663],[-79.253891,39.337222],[-79.282037,39.323048],[-79.290236,39.299323],[-79.33238,39.299919],[-79.35375,39.278039],[-79.387023,39.26554],[-79.43983,39.217074],[-79.486862,39.205959],[-79.476662,39.721078],[-75.788359,39.721811],[-75.693521,38.460128],[-75.049582,38.447117],[-75.073852,38.352006],[-75.087466,38.322769],[-75.102947,38.311525],[-75.192925,38.097819],[-75.359036,37.864143],[-75.374642,37.859454],[-75.40054,37.874865],[-75.437868,37.872324],[-75.514921,37.799149],[-75.572464,37.701565],[-75.610808,37.605909],[-75.612237,37.585602],[-75.594044,37.569698],[-75.666178,37.472124],[-75.665957,37.439209],[-75.720739,37.373129],[-75.735829,37.335426],[-75.778817,37.297176],[-75.798448,37.296285],[-75.79083,37.276207],[-75.799343,37.251779],[-75.790903,37.225066],[-75.804446,37.208011],[-75.800468,37.201029],[-75.830341,37.1706],[-75.906734,37.114193],[-75.92552,37.133601],[-75.945872,37.120514],[-75.97043,37.118608],[-75.978083,37.157338],[-76.013071,37.205366],[-76.010535,37.231579],[-76.025753,37.257407],[-76.015507,37.280874],[-76.023475,37.289067],[-76.018645,37.31782],[-75.987122,37.368548],[-75.981624,37.434116],[-75.960877,37.467562],[-75.958966,37.500133],[-75.940318,37.534582],[-75.941153,37.558436],[-75.924756,37.600215],[-75.868481,37.668224],[-75.859262,37.703111],[-75.837685,37.712985],[-75.827922,37.737986],[-75.803041,37.762464],[-75.818125,37.791698],[-75.784599,37.806826],[-75.743097,37.806656],[-75.689837,37.861817],[-75.687584,37.88634],[-75.709626,37.900622],[-75.753048,37.896605],[-75.757694,37.903912],[-75.712065,37.936082],[-75.693942,37.930362],[-75.66502,37.962401],[-75.708179,37.974972],[-75.735125,37.964592],[-75.783444,37.972565],[-75.860727,37.91831],[-75.892686,37.916848],[-75.890871,37.954847],[-75.898956,37.974514],[-75.875297,38.011965],[-75.87319,38.034375],[-75.847922,38.03437],[-75.812913,38.058932],[-75.839935,38.071314],[-75.874189,38.060288],[-75.880515,38.075011],[-75.865697,38.098036],[-75.837204,38.114468],[-75.827993,38.132803],[-75.843862,38.144599],[-75.866,38.134886],[-75.900355,38.14115],[-75.932738,38.126216],[-75.936663,38.109956],[-75.949557,38.118127],[-75.959496,38.136915],[-75.942375,38.187066],[-75.848473,38.20934],[-75.851396,38.226432],[-75.87031,38.243425],[-75.888513,38.241423],[-75.890669,38.228009],[-75.911143,38.257951],[-75.938577,38.272329],[-75.954483,38.264366],[-75.946414,38.23889],[-75.970514,38.233668],[-75.962235,38.24754],[-76.016291,38.307206],[-75.964237,38.324285],[-75.961948,38.341431],[-75.979727,38.367627],[-76.001839,38.374343],[-76.016682,38.332429],[-76.047992,38.313044],[-76.05022,38.304101],[-76.028234,38.282035],[-76.043927,38.249712],[-76.032044,38.216684],[-76.05801,38.227079],[-76.073493,38.248609],[-76.09972,38.253647],[-76.111296,38.286946],[-76.137238,38.281648],[-76.166154,38.290431],[-76.180115,38.277019],[-76.164388,38.250061],[-76.126623,38.242949],[-76.140068,38.231305],[-76.17335,38.247037],[-76.211446,38.302656],[-76.254473,38.31512],[-76.264186,38.346436],[-76.238452,38.347986],[-76.256788,38.366712],[-76.273003,38.366483],[-76.28302,38.413512],[-76.331383,38.473323],[-76.33636,38.492235],[-76.327257,38.500121],[-76.263968,38.503452],[-76.247894,38.523019],[-76.244396,38.536966],[-76.274057,38.531207],[-76.281047,38.53613],[-76.27964,38.557231],[-76.308321,38.571769],[-76.273496,38.59139],[-76.268633,38.597753],[-76.279589,38.60952],[-76.271827,38.615661],[-76.23665,38.628598],[-76.231187,38.61401],[-76.212427,38.606738],[-76.147158,38.63684],[-76.174611,38.672811],[-76.212808,38.681892],[-76.237818,38.711762],[-76.238685,38.735434],[-76.255093,38.736476],[-76.271243,38.716209],[-76.298499,38.718005],[-76.312756,38.730708],[-76.334017,38.703127],[-76.322418,38.679304],[-76.33861,38.672023],[-76.347998,38.686234],[-76.334619,38.772911],[-76.312886,38.793247],[-76.301886,38.824595],[-76.277854,38.831256],[-76.271575,38.851771],[-76.245886,38.822232],[-76.221162,38.813052],[-76.198138,38.81444],[-76.19343,38.821787],[-76.203638,38.928382],[-76.233895,38.942123],[-76.250157,38.938667],[-76.249163,38.9218],[-76.262226,38.919976],[-76.273022,38.94184],[-76.298208,38.92206],[-76.293358,38.903854],[-76.308425,38.898404],[-76.317947,38.911312],[-76.336104,38.905977],[-76.331103,38.864686],[-76.337901,38.857579],[-76.356361,38.854396],[-76.372719,38.838324],[-76.376031,38.848777],[-76.364678,38.873831],[-76.359669,38.94388],[-76.323293,38.998767],[-76.311766,39.035257],[-76.302029,39.039571],[-76.29409,39.004263],[-76.275964,38.982587],[-76.20236,38.973079],[-76.163956,39.000437],[-76.184207,39.046264],[-76.15896,39.065486],[-76.145174,39.092824],[-76.183908,39.096344],[-76.203333,39.085654],[-76.212563,39.041641],[-76.200666,39.01452],[-76.209114,39.01001],[-76.231765,39.018518],[-76.240905,39.039798],[-76.231212,39.060769],[-76.233457,39.091385],[-76.252946,39.133577],[-76.274907,39.145279],[-76.274303,39.166115],[-76.220475,39.259433],[-76.181496,39.291797],[-76.176804,39.306229],[-76.185581,39.319334],[-76.170588,39.331954],[-76.133225,39.340491],[-76.13495,39.35107],[-76.110598,39.372119],[-76.006546,39.366374],[-76.002514,39.384805],[-76.035464,39.386176],[-76.040854,39.393594],[-75.977751,39.44302],[-75.990005,39.458646],[-76.002497,39.450231],[-76.011716,39.454165],[-75.966955,39.53865],[-75.970337,39.557637],[-75.992633,39.563098],[-76.006213,39.550546],[-76.096072,39.536912],[-76.11461,39.488619],[-76.100218,39.476918],[-76.073119,39.475331],[-76.060931,39.452208],[-76.157108,39.406176],[-76.180057,39.377638],[-76.226976,39.349908],[-76.243377,39.361808],[-76.266365,39.353352],[-76.253928,39.336768],[-76.272671,39.326015],[-76.281374,39.304531],[-76.296546,39.302383],[-76.291078,39.318108],[-76.30177,39.352216],[-76.341443,39.354217],[-76.338898,39.325783],[-76.327579,39.314108],[-76.337858,39.305799],[-76.36439,39.31184],[-76.380662,39.299161],[-76.384901,39.275928],[-76.400094,39.261753],[-76.38138,39.249508],[-76.38438,39.242708],[-76.425281,39.205708],[-76.441411,39.196049],[-76.46156,39.204947],[-76.497977,39.204697],[-76.519804,39.222946],[-76.534285,39.213208],[-76.525785,39.177908],[-76.500926,39.161286],[-76.475983,39.161109],[-76.430946,39.132818],[-76.423081,39.07421],[-76.438845,39.0529],[-76.407398,39.034551],[-76.395639,39.016074],[-76.421535,38.989524],[-76.474198,38.972647],[-76.471281,38.956512],[-76.451695,38.94249],[-76.46188,38.924013],[-76.459479,38.907113],[-76.475761,38.914469],[-76.49368,38.910013],[-76.491107,38.884492],[-76.519442,38.863135],[-76.516944,38.851157],[-76.493639,38.848595],[-76.491387,38.835161],[-76.510078,38.801216],[-76.559697,38.767443],[-76.557535,38.744687],[-76.544561,38.727784],[-76.529868,38.728435],[-76.532056,38.676936],[-76.511278,38.615745],[-76.517506,38.539149],[-76.507489,38.5083],[-76.492699,38.482849],[-76.386229,38.382013],[-76.386931,38.363184],[-76.409291,38.325891],[-76.402894,38.311402],[-76.37531,38.299583],[-76.394171,38.278233],[-76.399078,38.258569],[-76.385244,38.217751],[-76.320492,38.138966],[-76.337411,38.110888],[-76.321499,38.03805],[-76.361237,38.059542],[-76.390917,38.101286],[-76.421066,38.105989],[-76.437242,38.135699],[-76.459236,38.139471],[-76.469798,38.119264],[-76.465479,38.106603],[-76.473266,38.103035],[-76.501258,38.137744],[-76.52899,38.134708],[-76.552957,38.187209],[-76.588683,38.21295],[-76.673462,38.234401],[-76.778625,38.22847],[-76.811647,38.250129],[-76.802347,38.280743],[-76.820799,38.299064],[-76.845846,38.297783],[-76.834908,38.274299],[-76.842038,38.254657],[-76.920778,38.291529],[-76.929554,38.321088],[-76.975092,38.347067],[-76.987838,38.391965],[-77.016371,38.445572],[-77.040638,38.444618],[-77.091073,38.407546],[-77.123325,38.410646],[-77.139968,38.390102],[-77.205009,38.360511],[-77.250172,38.382781],[-77.264238,38.414282],[-77.259962,38.435821],[-77.274021,38.481127],[-77.263599,38.512344],[-77.237724,38.55187],[-77.209905,38.56887],[-77.183767,38.600699],[-77.129213,38.614306],[-77.1302,38.635017],[-77.157501,38.636417],[-77.202002,38.617217],[-77.216303,38.637817],[-77.246704,38.635217],[-77.247003,38.590618],[-77.26443,38.582845],[-77.26083,38.56533],[-77.310334,38.493926],[-77.32544,38.44885],[-77.310719,38.397669],[-77.317288,38.383576],[-77.265295,38.333165],[-77.162692,38.345994],[-77.138224,38.367917],[-77.08481,38.368297],[-77.043526,38.400548],[-77.011827,38.374554],[-77.030683,38.311623],[-76.96215,38.256486],[-76.962311,38.214075],[-76.910832,38.197073],[-76.875272,38.172207],[-76.838795,38.163476],[-76.760241,38.166581],[-76.721722,38.137635],[-76.701297,38.155718],[-76.613939,38.148587],[-76.600937,38.110084],[-76.543155,38.076971],[-76.516547,38.026566],[-76.469343,38.013544],[-76.462542,37.998572],[-76.416299,37.966828],[-76.343848,37.947345],[-76.265998,37.91138],[-76.236725,37.889174],[-76.251358,37.833072],[-76.275178,37.812664],[-76.293525,37.822717],[-76.307482,37.81235],[-76.312108,37.750522],[-76.304917,37.729913],[-76.312858,37.720338],[-76.300067,37.695364],[-76.339892,37.655966],[-76.332562,37.645817],[-76.292534,37.636098],[-76.279447,37.618225],[-76.309174,37.621892],[-76.36232,37.610368],[-76.381106,37.627003],[-76.399236,37.628636],[-76.472392,37.665772],[-76.489576,37.666201],[-76.497564,37.647056],[-76.510187,37.642324],[-76.536548,37.663574],[-76.537228,37.698892],[-76.584289,37.76889],[-76.651413,37.796239],[-76.680197,37.825654],[-76.701606,37.822677],[-76.72718,37.842263],[-76.747552,37.875864],[-76.765711,37.879274],[-76.784618,37.869569],[-76.723863,37.788503],[-76.689773,37.78519],[-76.680922,37.759647],[-76.663887,37.751887],[-76.61971,37.744795],[-76.61997,37.731271],[-76.597213,37.717269],[-76.574049,37.646781],[-76.542666,37.616857],[-76.435474,37.612807],[-76.410781,37.581815],[-76.300144,37.561734],[-76.302762,37.551295],[-76.330598,37.536391],[-76.348992,37.536548],[-76.360474,37.51924],[-76.352678,37.504913],[-76.32947,37.49492],[-76.306952,37.497488],[-76.293599,37.516499],[-76.265056,37.481365],[-76.245283,37.386839],[-76.264847,37.357399],[-76.275552,37.309964],[-76.308581,37.329366],[-76.337476,37.364014],[-76.415167,37.402133],[-76.418176,37.385064],[-76.437525,37.37975],[-76.445333,37.36646],[-76.406388,37.332924],[-76.381075,37.28534],[-76.352556,37.278334],[-76.36229,37.270226],[-76.417173,37.26395],[-76.429141,37.25331],[-76.48284,37.254831],[-76.50364,37.233856],[-76.471799,37.216016],[-76.394132,37.22515],[-76.394756,37.157568],[-76.348658,37.170655],[-76.334017,37.144223],[-76.292344,37.126615],[-76.271262,37.084544],[-76.304272,37.001378],[-76.312048,37.000371],[-76.318065,37.013846],[-76.34011,37.015212],[-76.383367,36.993347],[-76.411768,36.962847],[-76.428869,36.969947],[-76.464471,37.027547],[-76.518242,37.055351],[-76.526203,37.077773],[-76.536875,37.083942],[-76.564219,37.077507],[-76.579499,37.096627],[-76.618252,37.119347],[-76.622252,37.142146],[-76.604476,37.160034],[-76.623292,37.198738],[-76.649869,37.220914],[-76.730951,37.213813],[-76.75047,37.190098],[-76.780532,37.209336],[-76.801023,37.206043],[-76.802511,37.198308],[-76.747632,37.150548],[-76.73032,37.145395],[-76.715295,37.148035],[-76.685614,37.198851],[-76.663774,37.173875],[-76.671588,37.14206],[-76.656894,37.109843],[-76.669822,37.06426],[-76.662558,37.045748],[-76.646013,37.036228],[-76.586491,37.02874],[-76.524853,36.983833],[-76.521006,36.973187],[-76.500355,36.965212],[-76.487559,36.952372],[-76.482135,36.901108],[-76.469914,36.882898],[-76.454692,36.884077],[-76.441605,36.906116],[-76.387567,36.899547],[-76.385867,36.923247],[-76.345569,36.924531],[-76.333158,36.917293],[-76.327365,36.959447],[-76.315867,36.955351],[-76.285063,36.968747],[-76.22166,36.939547],[-76.095508,36.908817],[-76.033454,36.931946],[-75.996252,36.922047],[-75.94955,36.76115],[-75.890946,36.630753],[-75.867044,36.550754],[-80.122183,36.542646],[-81.677535,36.588117],[-81.6469,36.611918],[-81.922644,36.616213],[-81.934144,36.594213],[-83.670128,36.600764],[-83.648314,36.622683],[-83.577312,36.641784],[-83.529612,36.666184],[-83.423707,36.667385],[-83.307103,36.711387],[-83.199698,36.737487],[-83.136395,36.743088],[-83.125728,36.761276],[-83.132477,36.764398],[-83.131694,36.781488],[-83.103092,36.806689],[-83.102092,36.828189],[-83.07379,36.844889],[-83.07559,36.850589],[-83.026887,36.855489],[-83.006086,36.847889],[-82.998376,36.85663],[-82.911824,36.874243],[-82.878569,36.889585],[-82.870068,36.901735],[-82.877473,36.90796],[-82.858635,36.927785],[-82.856099,36.952471],[-82.867358,36.963182],[-82.864909,36.97901],[-82.840051,36.987113],[-82.829961,37.003555],[-82.782144,37.008242],[-82.745562,37.029839],[-82.743684,37.041397],[-82.726279,37.042098],[-82.727022,37.073019],[-82.717204,37.079544],[-82.724954,37.091905],[-82.722097,37.120168],[-82.633493,37.154264],[-82.498858,37.227044],[-82.355343,37.26522],[-81.968297,37.537798],[-81.946022,37.531742],[-81.944756,37.513657],[-81.926391,37.514207],[-81.992916,37.482969],[-81.995649,37.469833],[-81.987006,37.454878],[-81.938843,37.440463],[-81.93695,37.41992],[-81.923481,37.411379],[-81.936744,37.38073],[-81.928497,37.360645],[-81.896001,37.331967],[-81.880886,37.331146],[-81.860267,37.315715],[-81.865429,37.31012],[-81.856032,37.306742],[-81.853551,37.287701],[-81.761752,37.275713],[-81.740974,37.254052],[-81.739277,37.238837],[-81.719554,37.237785],[-81.678603,37.202467],[-81.5536,37.208443],[-81.545211,37.220165],[-81.508786,37.232564],[-81.498874,37.258025],[-81.483559,37.250604],[-81.449068,37.269583],[-81.416663,37.273214],[-81.394287,37.316411],[-81.374455,37.318614],[-81.366315,37.335927],[-81.225104,37.234874],[-81.167029,37.262881],[-81.09482,37.28264],[-80.979589,37.302279],[-80.973889,37.291444],[-80.947896,37.295872],[-80.849451,37.346909],[-80.883248,37.383933],[-80.859563,37.429558],[-80.837678,37.425658],[-80.806129,37.398074],[-80.784188,37.394587],[-80.770082,37.372363],[-80.705203,37.394618],[-80.552036,37.473563],[-80.515139,37.478566],[-80.492981,37.457749],[-80.494867,37.43507],[-80.475601,37.422949],[-80.46482,37.426144],[-80.371952,37.474069],[-80.366838,37.484879],[-80.299789,37.508271],[-80.282385,37.533517],[-80.309346,37.527381],[-80.330306,37.536244],[-80.314464,37.54412],[-80.328504,37.564315],[-80.240272,37.606961],[-80.220984,37.627767],[-80.270352,37.648929],[-80.296138,37.691783],[-80.253077,37.725899],[-80.260313,37.733517],[-80.257411,37.756084],[-80.227498,37.778889],[-80.216498,37.776445],[-80.227092,37.798886],[-80.179391,37.839751],[-80.181815,37.852724],[-80.162202,37.875122],[-80.117747,37.89772],[-80.102931,37.918911],[-79.996134,38.000996],[-79.954369,38.080397],[-79.92633,38.107151],[-79.944843,38.131585],[-79.918662,38.15479],[-79.917061,38.183741],[-79.846445,38.240003],[-79.790134,38.267654],[-79.789791,38.281167],[-79.810115,38.305037],[-79.79655,38.32348],[-79.77309,38.335529],[-79.764432,38.356514],[-79.744105,38.353968],[-79.725804,38.366128],[-79.72635,38.38707],[-79.689675,38.431439],[-79.696959,38.484574],[-79.681574,38.508217],[-79.663474,38.514117],[-79.671574,38.527517],[-79.669275,38.549516],[-79.649075,38.591515],[-79.53687,38.550917],[-79.476638,38.457228],[-79.312276,38.411876],[-79.280149,38.42076],[-79.274529,38.436337],[-79.254435,38.455949],[-79.241854,38.457055],[-79.240059,38.469841],[-79.210591,38.492913],[-79.205859,38.524521],[-79.170958,38.56812],[-79.131057,38.653217],[-79.092955,38.659517],[-79.085455,38.724614],[-79.057554,38.760213],[-79.055654,38.783013],[-79.027253,38.792113],[-78.998171,38.847353],[-78.869276,38.762991],[-78.786025,38.887187],[-78.759085,38.900529],[-78.738921,38.927283],[-78.718482,38.934267],[-78.718647,38.904561],[-78.69738,38.915602],[-78.629553,38.980866],[-78.620453,38.982601],[-78.601655,38.964603],[-78.554919,39.015124],[-78.571901,39.031995],[-78.495984,39.09898],[-78.459869,39.113351],[-78.427294,39.152726],[-78.403697,39.167451],[-78.436662,39.196658],[-78.399669,39.243874],[-78.414204,39.26391],[-78.338958,39.349889],[-78.362267,39.357784],[-78.343214,39.388807],[-78.359352,39.412534],[-78.346718,39.427618],[-78.353227,39.436792],[-78.347087,39.466012],[-77.828157,39.132329],[-77.798478,39.199574],[-77.771415,39.236776],[-77.770669,39.255262],[-77.734899,39.312409],[-77.719029,39.321125]],[[-77.038598,38.791513],[-76.910795,38.891712],[-77.040999,38.99511],[-77.1199,38.934311],[-77.1034,38.912911],[-77.070099,38.900711],[-77.058254,38.880069],[-77.040599,38.871212],[-77.031698,38.850512],[-77.044899,38.834712],[-77.038598,38.791513]]],[[[-75.973607,37.835817],[-75.982158,37.806226],[-75.9983,37.812626],[-75.999658,37.848198],[-75.973607,37.835817]]]]},\"properties\":{\"name\":\"Maryland\",\"nation\":\"USA \"}}]}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Conant, Louis C.","contributorId":83921,"corporation":false,"usgs":true,"family":"Conant","given":"Louis","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":846364,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Black, Robert F.","contributorId":12504,"corporation":false,"usgs":true,"family":"Black","given":"Robert","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":846365,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hosterman, John W.","contributorId":48962,"corporation":false,"usgs":true,"family":"Hosterman","given":"John","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":846366,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":1013994,"text":"1013994 - 1976 - Differential inhibition of host protein synthesis in L cells infected with RNA - temperature-sensitive mutants of vesicular stomatitis virus","interactions":[],"lastModifiedDate":"2025-02-26T22:55:30.935058","indexId":"1013994","displayToPublicDate":"1976-05-01T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2497,"text":"Journal of Virology","active":true,"publicationSubtype":{"id":10}},"title":"Differential inhibition of host protein synthesis in L cells infected with RNA - temperature-sensitive mutants of vesicular stomatitis virus","docAbstract":"

The response of mouse L cells to infection with wild-type (wt) and temperature-sensitive (ts) mutants of vesicular stomatitis virus was monitored by sodium dodecyl sulfate-polyacrylamide gel electrophoresis to delineate the synthesis of host cell and viral proteins. Experiments utilized transcriptase mutants of complementation group I (ts114 and ts13), a group IV mutant (ts44) that is restricted in total RNA synthesis (RNA-1) but not in primary transcription, and a group II mutant (ts52) variably restricted in RNA synthesis (RNA +/-). L cells infected with ts mutants at permissive temperature exhibited the wt response of progressive inhibition of host cell protein synthesis accompanied by accumulation of all five viral proteins. Mutant ts44 (IV) also switched off cell protein synthesis at restrictive temperature and accumulated all five viral proteins, but with disproportionate ratios of N and G proteins. At restrictive temperature, cells infected with group I ts mutants failed to accumulate any viral protein and did not exhibit significant reduction in host cell protein synthesis. These data suggest that vesicular stomatitis virus inhibits cell protein synthesis at a stage of viral infection after transcription and possibly translation but preceding replication of progeny viral RNA.

","language":"English","publisher":"American Society for Microbiology","doi":"10.1128/jvi.18.2.550-558.1976","usgsCitation":"McAllister, P.E., and Wagner, R., 1976, Differential inhibition of host protein synthesis in L cells infected with RNA - temperature-sensitive mutants of vesicular stomatitis virus: Journal of Virology, v. 18, no. 2, p. 550-558, https://doi.org/10.1128/jvi.18.2.550-558.1976.","productDescription":"9 p.","startPage":"550","endPage":"558","costCenters":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"links":[{"id":489964,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1128/jvi.18.2.550-558.1976","text":"Publisher Index Page"},{"id":132068,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a9ae4b07f02db65d711","contributors":{"authors":[{"text":"McAllister, P. E.","contributorId":71913,"corporation":false,"usgs":true,"family":"McAllister","given":"P.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":319585,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wagner, R.R.","contributorId":65804,"corporation":false,"usgs":true,"family":"Wagner","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":319584,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70209763,"text":"70209763 - 1976 - Direct dating of mineralization at Goldfield, Nevada, by potassium-argon and fission-track methods","interactions":[],"lastModifiedDate":"2020-04-30T15:20:11.537256","indexId":"70209763","displayToPublicDate":"1976-04-24T11:41:58","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1472,"text":"Economic Geology","active":true,"publicationSubtype":{"id":10}},"title":"Direct dating of mineralization at Goldfield, Nevada, by potassium-argon and fission-track methods","docAbstract":"

Potassium-argon dating of hypogene alunite and K-mica from hydrothermally altered rocks at Goldfield, Nevada, yields mineralization ages of 20 to 21 m.y., in good agreement with a mineralization age established by potassium-argon dating of unaltered premineralization and postmineralization volcanic units. Premineralization volcanic units that are pervasively propylitized cannot be dated by the potassium-argon method but yield zircon fission-track ages, and in several cases yield concordant apatite fission-track ages. Two samples from premineralization units yield apatite ages concordant with the age of mineralization established by potassium-argon geochronometry, reflecting annealing of the apatite during the hydrothermal episode.Potassium-argon dating of supergene alunite samples yields imprecise ages in the range 9 to 12 m.y. that probably record the first exposure of their hydrothermally altered host rocks to oxidizing conditions. Potassium-argon dating of postmineralization basalts and silicic tuffs interbedded with conglomerates bearing altered rock clasts shows that the altered area was eroded nearly to present topographic levels by 11 m.y. ago, at which time it was covered by basalt flows now represented only by scattered remnants. Apatites from premineralization volcanic units give fission-track ages of 20 m.y. or more, indicating that no significant thermal event has affected altered rocks at Goldfield since mineralization took place.

","language":"English","publisher":"GeoScienceWrld","doi":"10.2113/gsecongeo.71.5.904","usgsCitation":"Ashley, R.P., and Silberman, M., 1976, Direct dating of mineralization at Goldfield, Nevada, by potassium-argon and fission-track methods: Economic Geology, v. 71, no. 5, p. 904-924, https://doi.org/10.2113/gsecongeo.71.5.904.","productDescription":"21 p.","startPage":"904","endPage":"924","numberOfPages":"21","costCenters":[],"links":[{"id":374258,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Goldfield","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -117.43286132812499,\n 38.112949789189614\n ],\n [\n -116.62536621093749,\n 38.112949789189614\n ],\n [\n -116.62536621093749,\n 38.805470223177466\n ],\n [\n -117.43286132812499,\n 38.805470223177466\n ],\n [\n -117.43286132812499,\n 38.112949789189614\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"71","issue":"5","noUsgsAuthors":false,"publicationDate":"1976-08-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Ashley, Roger P. ashley@usgs.gov","contributorId":2749,"corporation":false,"usgs":true,"family":"Ashley","given":"Roger","email":"ashley@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":787914,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Silberman, M.L.","contributorId":10013,"corporation":false,"usgs":true,"family":"Silberman","given":"M.L.","affiliations":[],"preferred":false,"id":787915,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70010196,"text":"70010196 - 1976 - Diamonds in an upper mantle peridotite nodule from kimberlite in southern Wyoming","interactions":[],"lastModifiedDate":"2026-01-21T16:08:45.856258","indexId":"70010196","displayToPublicDate":"1976-04-16T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Diamonds in an upper mantle peridotite nodule from kimberlite in southern Wyoming","docAbstract":"Diamonds in a serpentinized garnet peridotite nodule from a diatreme in southern Wyoming are the first known occurrence in an upper mantle peridotite xenolith from a kimberlite intrusion in North America as well as the second authenticated occurrence of diamonds from kimberlite pipes in North America. The nodule is believed to have come from a section of depleted (partially melted) Iherzolite at a depth of 130 to 180 kilometers.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.192.4236.253","issn":"00368075","usgsCitation":"McCallum, M.E., and Eggler, D., 1976, Diamonds in an upper mantle peridotite nodule from kimberlite in southern Wyoming: Science, v. 192, no. 4236, p. 253-256, https://doi.org/10.1126/science.192.4236.253.","productDescription":"4 p.","startPage":"253","endPage":"256","costCenters":[],"links":[{"id":218854,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"southern Wyoming","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.00297883648113,\n 42.98668773750933\n ],\n [\n -111.00297883648113,\n 41.00229129056598\n ],\n [\n -104.11172086768357,\n 41.00229129056598\n ],\n [\n -104.11172086768357,\n 42.98668773750933\n ],\n [\n -111.00297883648113,\n 42.98668773750933\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"192","issue":"4236","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a00a8e4b0c8380cd4f843","contributors":{"authors":[{"text":"McCallum, M. E.","contributorId":34119,"corporation":false,"usgs":true,"family":"McCallum","given":"M.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":358292,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eggler, D.H.","contributorId":40723,"corporation":false,"usgs":true,"family":"Eggler","given":"D.H.","affiliations":[],"preferred":false,"id":358293,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1007778,"text":"1007778 - 1976 - Tool use in a social insect and its implications for competitive interactions","interactions":[],"lastModifiedDate":"2026-01-21T16:24:15.345685","indexId":"1007778","displayToPublicDate":"1976-04-02T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Tool use in a social insect and its implications for competitive interactions","docAbstract":"

Four species of myrmicine ants, Aphaenogaster rudis, A. treatae, A. tennesseensis, and A. fulva, use pieces of leaf, mud, and sand grains as tools to carry soft foods from distant sources to the colony. Tools are tended on the food and removed by colony members without regard to which individual brought the tool. Food is gathered more efficiently by tool use than by internal transport. Tool-using behavior may increase the competitive ability of A. rudis in an interspecific dominance hierarchy.

","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.192.4234.70","usgsCitation":"Fellers, J.H., and Fellers, G.M., 1976, Tool use in a social insect and its implications for competitive interactions: Science, v. 192, no. 4234, p. 70-72, https://doi.org/10.1126/science.192.4234.70.","productDescription":"3 p.","startPage":"70","endPage":"72","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":129790,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"192","issue":"4234","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b05e4b07f02db699c92","contributors":{"authors":[{"text":"Fellers, Joan H.","contributorId":38931,"corporation":false,"usgs":true,"family":"Fellers","given":"Joan","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":316012,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fellers, Gary M. 0000-0003-4092-0285 gary_fellers@usgs.gov","orcid":"https://orcid.org/0000-0003-4092-0285","contributorId":3150,"corporation":false,"usgs":true,"family":"Fellers","given":"Gary","email":"gary_fellers@usgs.gov","middleInitial":"M.","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":316011,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70233958,"text":"70233958 - 1976 - Effects of local geological conditions in the San Francisco Bay region on ground motions and the intensities of the 1906 earthquake","interactions":[],"lastModifiedDate":"2022-07-28T13:28:17.455864","indexId":"70233958","displayToPublicDate":"1976-04-01T08:15:44","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Effects of local geological conditions in the San Francisco Bay region on ground motions and the intensities of the 1906 earthquake","docAbstract":"

Measurements of ground motion generated by nuclear explosions in Nevada have been completed for 99 locations in the San Francisco Bay region, California. The recordings show marked amplitude variations in the frequency band 0.25 to 3.0 Hz that are consistently related to the local geological conditions of the recording site. The average spectral amplifications observed for vertical and horizontal ground motions are, respectively: (1, 1) for granite, (1.5, 1.6) for the Franciscan Formation, (3.0, 2.7) for the Santa Clara Formation, (3.3, 4.4) for alluvium, and (3.7, 11.3) for bay mud. Spectral amplification curves define predominant ground frequencies in the band 0.25 to 3.0 E for bay mud sites and for some alluvial sites. Amplitude spectra computed from recordings of seismic background noise at 50 sites do not generally define predominant ground frequencies.

The intensities ascribed to various sites in the San Francisco Bay region for the California earthquake of April 18, 1906, are strongly dependent on distance from the zone of surface faulting and the geological character of the ground. Considering only those sites (approximately one square city block in size) for which there is good evidence for the degree of ascribed intensity, the intensities for 917 sites on Franciscan rocks generally decrease with the logarithm of distance as

Intensity = 2.69 - 1.90 log (Distance in kilometers). (1)

For sites on other geological units, intensity increments, derived from this empirical relation, correlate strongly with the Average Horizontal Spectral Amplifications (AHSA) according to the empirical relation

Intensity Increment = 0.27 + 2.70 log (AHSA). (2)

Average intensity increments predicted for the various geological units are −0.3 for granite, 0.2 for the Franciscan Formation, 0.6 for the Great Valley sequence, 0.8 for the Santa Clara Formation, 1.3 for alluvium, and 2.4 for bay mud. The maximum intensity map predicted on the basis of these data delineates areas in the San Francisco Bay region of potentially high intensity for large earthquakes on either the San Andreas fault or the Hayward fault. The map provides a crude form of seismic zonation for the region and may be useful for certain general types of land-use zonation.

","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0660020467","usgsCitation":"Borcherdt, R.D., and Gibbs, J., 1976, Effects of local geological conditions in the San Francisco Bay region on ground motions and the intensities of the 1906 earthquake: Bulletin of the Seismological Society of America, v. 66, no. 2, p. 467-500, https://doi.org/10.1785/BSSA0660020467.","productDescription":"34 p.","startPage":"467","endPage":"500","costCenters":[{"id":234,"text":"Earthquake Hazards Program","active":true,"usgs":true}],"links":[{"id":404535,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","city":"San Francisco","otherGeospatial":"San Francisco Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122.64175415039061,\n 37.18767264916781\n ],\n [\n -121.69143676757811,\n 37.18767264916781\n ],\n [\n -121.69143676757811,\n 37.80761398306056\n ],\n [\n -122.64175415039061,\n 37.80761398306056\n ],\n [\n -122.64175415039061,\n 37.18767264916781\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"66","issue":"2","noUsgsAuthors":false,"publicationDate":"1976-04-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Borcherdt, Roger D. 0000-0002-8668-0849 borcherdt@usgs.gov","orcid":"https://orcid.org/0000-0002-8668-0849","contributorId":2373,"corporation":false,"usgs":true,"family":"Borcherdt","given":"Roger","email":"borcherdt@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":847751,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gibbs, James F.","contributorId":95880,"corporation":false,"usgs":true,"family":"Gibbs","given":"James F.","affiliations":[],"preferred":false,"id":847752,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70010885,"text":"70010885 - 1976 - An experiment in earthquake control at Rangely, Colorado","interactions":[],"lastModifiedDate":"2026-01-21T16:29:05.404293","indexId":"70010885","displayToPublicDate":"1976-03-26T00:00:00","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"An experiment in earthquake control at Rangely, Colorado","docAbstract":"

An experiment in an oil field at Rangely, Colorado, has demonstrated the feasibility of earthquake control. Variations in seismicity were produced by controlled variations in the fluid pressure in a seismically active zone. Precise earthquake locations revealed that the earthquakes clustered about a fault trending through a zone of high pore pressure produced by secondary recovery operations. Laboratory measurements of the frictional properties of the reservoir rocks and an in situ stress measurement made near the earthquake zone were used to predict the fluid pressure required to trigger earthquakes on preexisting fractures. Fluid pressure was controlled by alternately injecting and recovering water from wells that penetrated the seismic zone. Fluid pressure was monitored in observation wells, and a computer model of the reservoir was used to infer the fluid pressure distributions in the vicinity of the injection wells. The results of this experiment confirm the predicted effect of fluid pressure on earthquake activity and indicate that earthquakes can be controlled wherever we can control the fluid pressure in a fault zone.

","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.191.4233.1230","issn":"00368075","usgsCitation":"Raleigh, C., Healy, J.H., and Bredehoeft, J., 1976, An experiment in earthquake control at Rangely, Colorado: Science, v. 191, no. 4233, p. 1230-1237, https://doi.org/10.1126/science.191.4233.1230.","productDescription":"8 p.","startPage":"1230","endPage":"1237","costCenters":[],"links":[{"id":221078,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","city":"Rangely","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -108.84277087243589,\n 40.11930068802104\n ],\n [\n -108.84277087243589,\n 40.06951510909437\n ],\n [\n -108.75431520044876,\n 40.06951510909437\n ],\n [\n -108.75431520044876,\n 40.11930068802104\n ],\n [\n -108.84277087243589,\n 40.11930068802104\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"191","issue":"4233","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea61e4b0c8380cd48815","contributors":{"authors":[{"text":"Raleigh, C.B.","contributorId":40219,"corporation":false,"usgs":true,"family":"Raleigh","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":359840,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Healy, J. H.","contributorId":48968,"corporation":false,"usgs":true,"family":"Healy","given":"J.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":359841,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bredehoeft, J.D.","contributorId":12836,"corporation":false,"usgs":true,"family":"Bredehoeft","given":"J.D.","affiliations":[],"preferred":false,"id":359839,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70232242,"text":"70232242 - 1976 - Amino acids and gases in some springs and an oil field in California","interactions":[],"lastModifiedDate":"2022-06-16T16:59:58.86099","indexId":"70232242","displayToPublicDate":"1976-03-01T11:53:41","publicationYear":"1976","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2446,"text":"Journal of Research of the U.S. Geological Survey","active":true,"publicationSubtype":{"id":10}},"title":"Amino acids and gases in some springs and an oil field in California","docAbstract":"

Samples of water and gas were collected from six springs and two wells in the Upper Cretaceous Great Valley sequence and Franciscan Formation underlying the Coast Range of northern California and from four oil wells penetrating Tertiary sedimentary rocks in the Kettleman North Dome oil field. Comparison of the dissolved free amino acid compositions of the waters from the two locations show overlapping ranges with many more similarities than differences. The detection of nonprotein amino acids (sarcosine, β-amino n-butyric acid, and others) indicates the protein degradation is partly chemical rather than strictly biological. Other low molecular weight degradation products (methane, ethane, nonvolatile organic acids, and other organic chelating agents) were found. This may be one mechanism for the transportation of organic matter from the source rocks to the reservoir rocks of an oil deposit.

","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Rapp, J., 1976, Amino acids and gases in some springs and an oil field in California: Journal of Research of the U.S. Geological Survey, v. 4, no. 2, p. 227-232.","productDescription":"6 p.","startPage":"227","endPage":"232","costCenters":[],"links":[{"id":402282,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":402281,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1976/vol4issue2/report.pdf"}],"country":"United States","state":"California","otherGeospatial":"Coast Range, Kettleman North Dome","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -124.3212890625,\n 38.28993659801203\n ],\n [\n -121.937255859375,\n 38.28993659801203\n ],\n [\n -121.937255859375,\n 42.02481360781777\n ],\n [\n -124.3212890625,\n 42.02481360781777\n ],\n [\n -124.3212890625,\n 38.28993659801203\n ]\n ]\n ]\n }\n },\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -119.79766845703125,\n 35.75765724051559\n ],\n [\n -120.05035400390625,\n 36.055760619006755\n ],\n [\n -120.30029296875,\n 36.292990818063394\n ],\n [\n -120.45135498046875,\n 36.18665862660454\n ],\n [\n -120.03662109374999,\n 35.74428307651204\n ],\n [\n -119.93225097656251,\n 35.67737855391475\n ],\n [\n -119.79766845703125,\n 35.75765724051559\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"4","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Rapp, John B.","contributorId":32028,"corporation":false,"usgs":true,"family":"Rapp","given":"John B.","affiliations":[],"preferred":false,"id":844772,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ]}