{"pageNumber":"5840","pageRowStart":"145975","pageSize":"25","recordCount":184617,"records":[{"id":70232571,"text":"70232571 - 1978 - Potassium-argon ages of basement rocks from Saint George Island, Alaska","interactions":[],"lastModifiedDate":"2022-07-07T14:10:27.836531","indexId":"70232571","displayToPublicDate":"1978-07-01T09:06:51","publicationYear":"1978","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":"Potassium-argon ages of basement rocks from Saint George Island, Alaska","docAbstract":"<p>Potassium-argon ages from basement granitic rocks that intrude serpentinized peridotite on St. George Island, Alaska, range from 50 to 57 million years, with an initial argon isochron age. interpreted as a minimum figure, of 52 ± 2 m.y. The age of the granitic rocks and their association with serpentinized peridotite near the continental margin, which apparently marks the site of a Mesozoic subduction zone, suggest that the position of the subduction zone shifted southward to the Aleutian Trench in early Tertiary time.</p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Hopkins, D., and Silberman, M., 1978, Potassium-argon ages of basement rocks from Saint George Island, Alaska: Journal of Research of the U.S. Geological Survey, v. 6, no. 4, p. 435-438.","productDescription":"4 p.","startPage":"435","endPage":"438","costCenters":[],"links":[{"id":403137,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403136,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue4/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Alaska","otherGeospatial":"Saint George Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -169.78271484375,\n              56.515563731608296\n            ],\n            [\n              -169.45037841796875,\n              56.515563731608296\n            ],\n            [\n              -169.45037841796875,\n              56.63357434738749\n            ],\n            [\n              -169.78271484375,\n              56.63357434738749\n            ],\n            [\n              -169.78271484375,\n              56.515563731608296\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hopkins, D.M.","contributorId":103646,"corporation":false,"usgs":true,"family":"Hopkins","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":845980,"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":845981,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70232570,"text":"70232570 - 1978 - Giant glacial grooves at the north end of the Mission Range, Northwest Montana","interactions":[],"lastModifiedDate":"2022-07-07T14:05:50.741852","indexId":"70232570","displayToPublicDate":"1978-07-01T09:02:00","publicationYear":"1978","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":"Giant glacial grooves at the north end of the Mission Range, Northwest Montana","docAbstract":"<p>Giant glacial grooves both cut across and wrap around the north end of the Mission Range. Some of these grooves are straight, others crescentic, but all appear to be independent of stratigraphic units and of the gross structure of the range. They were seemingly localized by preexisting stream valleys whose original trends were determined by joints. The grooves are cut in bedrock, U-shaped in cross section, thickly veneered with till, and roughly parallel. Most range in length from 0.5 km to 3.5 km. Each groove maintains a uniform width, but widths range from about 50 in to 275 in. Depths of individual grooves vary widely, ranging from about 10 m to about 60 in. The grooves are probably contemporaneous in age, but their time of formation is uncertain; it seems to have been prior to late Pinedale time but after the pre-Bull Lake glaciations. Of the various interpretations offered to explain their origin, the one that appears to fit most of the facts suggests that those grooves at the northern tip of the mountains were carved by a lobe of the south-flowing Cordilleran ice sheet, whereas those farther south were likely formed by the westward deflection of a north-flowing Swan valley glacier.</p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Witkind, I.J., 1978, Giant glacial grooves at the north end of the Mission Range, Northwest Montana: Journal of Research of the U.S. Geological Survey, v. 6, no. 4, p. 425-433.","productDescription":"9 p.","startPage":"425","endPage":"433","costCenters":[],"links":[{"id":403135,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403134,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue4/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Montana","otherGeospatial":"Mission Range","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -114.09988403320312,\n              47.8666165573186\n            ],\n            [\n              -113.73596191406249,\n              47.8666165573186\n            ],\n            [\n              -113.73596191406249,\n              48.09367440979962\n            ],\n            [\n              -114.09988403320312,\n              48.09367440979962\n            ],\n            [\n              -114.09988403320312,\n              47.8666165573186\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Witkind, I. J.","contributorId":54221,"corporation":false,"usgs":true,"family":"Witkind","given":"I.","middleInitial":"J.","affiliations":[],"preferred":false,"id":845979,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1001309,"text":"1001309 - 1978 - Red fox prey demands and implications to prairie duck production","interactions":[],"lastModifiedDate":"2025-02-14T19:36:58.071471","indexId":"1001309","displayToPublicDate":"1978-07-01T00:00:00","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Red fox prey demands and implications to prairie duck production","docAbstract":"<p>Experiments were conducted during spring and summer with 33 red foxes (<i>Vulpes vulpes</i>) to determine prey demands, feeding characteristics, and growth rates using natural foods. Pups began eating prey the 4th week after birth. Then, prey consumption averaged 1.38 and 1.90 kg/pup/week for weeks 5-8 and 9-12 of the denning season respectively, and 2.54 kg/pup/week for the postdenning period. Feeding by adults averaged 2.25 kg/adult/week. Free water was not needed by either pups or adults. About 90 percent of the prey offered to pups on simulated natural diets was consumed, remains varied with prey availability and prey type. Prey biomass required by a typical fox family was estimated at 18.5 kg/km2 for the 12-week denning season and 2.4 kg/km2/week for the postdenning period. Because of the large prey demands, ducks could represent a small part of the foxes' diet and yet be of consequence to the productivity of particular species. An example is provided for the mallard (<i>Anas platyrhynchos</i>).</p>","language":"English","doi":"10.2307/3800813","usgsCitation":"Sargeant, A., 1978, Red fox prey demands and implications to prairie duck production: Journal of Wildlife Management, v. 42, no. 3, p. 520-527, https://doi.org/10.2307/3800813.","productDescription":"8 p.","startPage":"520","endPage":"527","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":133526,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db635371","contributors":{"authors":[{"text":"Sargeant, A.B.","contributorId":13171,"corporation":false,"usgs":true,"family":"Sargeant","given":"A.B.","email":"","affiliations":[],"preferred":false,"id":310862,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1001266,"text":"1001266 - 1978 - A remote controlled system for capturing nesting waterfowl","interactions":[],"lastModifiedDate":"2025-02-14T19:12:06.67582","indexId":"1001266","displayToPublicDate":"1978-07-01T00:00:00","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"A remote controlled system for capturing nesting waterfowl","docAbstract":"Abstract has not been submitted","language":"English","publisher":"Wiley","doi":"10.2307/3800840","usgsCitation":"Shaiffer, C., and Krapu, G., 1978, A remote controlled system for capturing nesting waterfowl: Journal of Wildlife Management, v. 42, no. 3, p. 668-669, https://doi.org/10.2307/3800840.","productDescription":"2 p.","startPage":"668","endPage":"669","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":130586,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b1ae4b07f02db6a8449","contributors":{"authors":[{"text":"Shaiffer, Charles W.","contributorId":74325,"corporation":false,"usgs":true,"family":"Shaiffer","given":"Charles W.","affiliations":[],"preferred":false,"id":310767,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Krapu, Gary L.","contributorId":56994,"corporation":false,"usgs":true,"family":"Krapu","given":"Gary L.","affiliations":[],"preferred":false,"id":310766,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1001400,"text":"1001400 - 1978 - Interpreting the results of nesting studies","interactions":[],"lastModifiedDate":"2025-02-14T19:39:43.219093","indexId":"1001400","displayToPublicDate":"1978-07-01T00:00:00","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2508,"text":"Journal of Wildlife Management","active":true,"publicationSubtype":{"id":10}},"title":"Interpreting the results of nesting studies","docAbstract":"<p>Nesting studies are used to assess the production of birds and to evaluate nesting habitats. Most such studies involve finding nests in a given area and subsequently determining the proportion that hatched. Unfortunately, the results are often biased by unrecognized differences in the probabilities of finding successful and unsuccessful nests. The observed hatch rates of 1,900 nests of blue-winged teal (<i>Anas discors</i>) are presented to illustrate the relationship of hatch rates to time remaining until the nests should hatch. The Mayfield method of correcting for these biases is illustrated. Other examples demonstrate the possible effects of sampling procedures on observed hatch rates and nest density.</p>","language":"English","doi":"10.2307/3800806","usgsCitation":"Miller, H., and Johnson, D.H., 1978, Interpreting the results of nesting studies: Journal of Wildlife Management, v. 42, no. 3, p. 471-476, https://doi.org/10.2307/3800806.","productDescription":"6 p.","startPage":"471","endPage":"476","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":128826,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"42","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49d9e4b07f02db5dfeaf","contributors":{"authors":[{"text":"Miller, H.W.","contributorId":102825,"corporation":false,"usgs":true,"family":"Miller","given":"H.W.","email":"","affiliations":[],"preferred":false,"id":310975,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Johnson, Douglas H. 0000-0002-7778-6641","orcid":"https://orcid.org/0000-0002-7778-6641","contributorId":70327,"corporation":false,"usgs":true,"family":"Johnson","given":"Douglas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":310974,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012591,"text":"70012591 - 1978 - The moon in Heiligenschein","interactions":[],"lastModifiedDate":"2026-01-15T17:11:15.093097","indexId":"70012591","displayToPublicDate":"1978-06-16T00:00:00","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"The moon in Heiligenschein","docAbstract":"<p>An analysis of 25 photometric digital images of the moon has been carried out to obtain a single image in a new mapping parameter, the Heiligenschein exponent. The data necessarily represent a range of lunar phases, but all are within 10 hours of full moon. The new parameter characterizes the rate at which lunar features brighten as their local phase angles approach zero. Although considerable contrast is present in this parameter, there is only a small correlation with normal albedo. In particular, the large albedo difference between maria and highlands is not simply reflected in Heiligenschein differences, which are larger within each category of terrain than the difference between the Heiligenschein averages of each. A correlation with age may be present in both the maria and the highlands, but its determination will require separation into distinct geochemical provinces.&nbsp;</p>","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.200.4347.1265","issn":"00368075","usgsCitation":"Wildey, R., 1978, The moon in Heiligenschein: Science, v. 200, no. 4347, p. 1265-1267, https://doi.org/10.1126/science.200.4347.1265.","productDescription":"3 p.","startPage":"1265","endPage":"1267","costCenters":[],"links":[{"id":222027,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Moon","volume":"200","issue":"4347","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505badeae4b08c986b323e60","contributors":{"authors":[{"text":"Wildey, R.L.","contributorId":9700,"corporation":false,"usgs":true,"family":"Wildey","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":363992,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":5210208,"text":"5210208 - 1978 - Environmental pollutants and eggshell thinning in the black-crowned night heron","interactions":[],"lastModifiedDate":"2020-06-04T18:03:22.784523","indexId":"5210208","displayToPublicDate":"1978-06-09T09:23:16","publicationYear":"1978","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Environmental pollutants and eggshell thinning in the black-crowned night heron","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Wading Birds: Resaerch report of the National Audubon Society","largerWorkSubtype":{"id":4,"text":"Other Government Series"},"language":"English","publisher":"National Audubon Society","usgsCitation":"Ohlendorf, H.M., Klaas, E., and Kaiser, T., 1978, Environmental pollutants and eggshell thinning in the black-crowned night heron, chap. <i>of</i> Wading Birds: Resaerch report of the National Audubon Society, p. 63-82.","productDescription":"20 p.","startPage":"63","endPage":"82","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":200550,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db60226f","contributors":{"editors":[{"text":"Sprunt, Alexander= IV","contributorId":113629,"corporation":false,"usgs":true,"family":"Sprunt","given":"Alexander=","suffix":"IV","email":"","affiliations":[],"preferred":false,"id":506117,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Ogden, John C.","contributorId":67895,"corporation":false,"usgs":true,"family":"Ogden","given":"John","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":506115,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Winckler, Suzanne","contributorId":111591,"corporation":false,"usgs":true,"family":"Winckler","given":"Suzanne","email":"","affiliations":[],"preferred":false,"id":506116,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Ohlendorf, H. M.","contributorId":28194,"corporation":false,"usgs":true,"family":"Ohlendorf","given":"H.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":327968,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Klaas, Erwin E.","contributorId":21487,"corporation":false,"usgs":true,"family":"Klaas","given":"Erwin E.","affiliations":[],"preferred":false,"id":327967,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kaiser, T. E.","contributorId":75486,"corporation":false,"usgs":true,"family":"Kaiser","given":"T. E.","affiliations":[],"preferred":false,"id":327969,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70210488,"text":"70210488 - 1978 - Mapped offset on the right-lateral Kern Canyon fault, southern Sierra Nevada, California","interactions":[],"lastModifiedDate":"2020-06-04T19:27:58.993083","indexId":"70210488","displayToPublicDate":"1978-06-04T14:18:28","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Mapped offset on the right-lateral Kern Canyon fault, southern Sierra Nevada, California","docAbstract":"<p><span>The north-trending Kern Canyon fault, the longest fault within the southern Sierra Nevada, has been mapped from lat 36°00′N to its northern end near lat 36°40′N. The fault cuts and offsets granitic plutons as young as 80 m.y., but despite the fact that many recent earthquake foci plot close to the fault, it does not appear to offset an overlying 3.5-m.y.-old basalt flow. Seven granitic plutons are clearly offset by the fault in a right-lateral sense. In the area mapped, offset of plutonic contacts is 6.5 to 13 km and increases southward by 0.2 km/km.</span></p>","language":"English","publisher":"GSA","doi":"10.1130/0091-7613(1978)6<205:MOOTRK>2.0.CO;2","usgsCitation":"Moore, J.G., and du Bray, E.A., 1978, Mapped offset on the right-lateral Kern Canyon fault, southern Sierra Nevada, California: Geology, v. 6, no. 4, p. 205-208, https://doi.org/10.1130/0091-7613(1978)6<205:MOOTRK>2.0.CO;2.","productDescription":"4 p.","startPage":"205","endPage":"208","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":375372,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Kern Canyon fault","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -118.57543945312501,\n              35.639441068973944\n            ],\n            [\n              -118.114013671875,\n              35.639441068973944\n            ],\n            [\n              -118.114013671875,\n              36.76529191711624\n            ],\n            [\n              -118.57543945312501,\n              36.76529191711624\n            ],\n            [\n              -118.57543945312501,\n              35.639441068973944\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Moore, James G. 0000-0002-7543-2401 jmoore@usgs.gov","orcid":"https://orcid.org/0000-0002-7543-2401","contributorId":2892,"corporation":false,"usgs":true,"family":"Moore","given":"James","email":"jmoore@usgs.gov","middleInitial":"G.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":790354,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"du Bray, Edward A. 0000-0002-4383-8394 edubray@usgs.gov","orcid":"https://orcid.org/0000-0002-4383-8394","contributorId":755,"corporation":false,"usgs":true,"family":"du Bray","given":"Edward","email":"edubray@usgs.gov","middleInitial":"A.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":790355,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70121603,"text":"70121603 - 1978 - Estimating pore and cement volumes in thin section","interactions":[],"lastModifiedDate":"2025-02-27T18:01:06.312922","indexId":"70121603","displayToPublicDate":"1978-06-01T14:56:43","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2450,"text":"Journal of Sedimentary Petrology","active":true,"publicationSubtype":{"id":10}},"title":"Estimating pore and cement volumes in thin section","docAbstract":"<p><span>Point count estimates of pore, grain and cement volumes from thin sections are inaccurate, often by more than 100 percent, even though they may be surprisingly precise (reproducibility + or - 3 percent). Errors are produced by: 1) inclusion of submicroscopic pore space within solid volume and 2) edge effects caused by grain curvature within a 30-micron thick thin section. Submicroscopic porosity may be measured by various physical tests or may be visually estimated from scanning electron micrographs. Edge error takes the form of an envelope around grains and increases with decreasing grain size and sorting, increasing grain irregularity and tighter grain packing. Cements are greatly involved in edge error because of their position at grain peripheries and their generally small grain size. Edge error is minimized by methods which reduce the thickness of the sample viewed during point counting. Methods which effectively reduce thickness include use of ultra-thin thin sections or acetate peels, point counting in reflected light, or carefully focusing and counting on the upper surface of the thin section.</span></p>","language":"English","publisher":"Society for Sedimentary Geology","publisherLocation":"Tulsa, OK","doi":"10.1306/212F7504-2B24-11D7-8648000102C1865D","usgsCitation":"Halley, R.B., 1978, Estimating pore and cement volumes in thin section: Journal of Sedimentary Petrology, v. 48, no. 2, p. 642-650, https://doi.org/10.1306/212F7504-2B24-11D7-8648000102C1865D.","productDescription":"9 p.","startPage":"642","endPage":"650","numberOfPages":"9","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":292904,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53f85958e4b03f038c5c17ff","contributors":{"authors":[{"text":"Halley, R. B.","contributorId":87941,"corporation":false,"usgs":true,"family":"Halley","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":499194,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70236560,"text":"70236560 - 1978 - Digital image analysis techniques required for natural resource inventories","interactions":[],"lastModifiedDate":"2022-12-22T14:53:23.477524","indexId":"70236560","displayToPublicDate":"1978-06-01T12:27:04","publicationYear":"1978","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Digital image analysis techniques required for natural resource inventories","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"International workshop on managing requirements knowledge","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"1978 National Computer Conference","conferenceDate":"June 5-8, 1978","conferenceLocation":"Anaheim, California, United States","language":"English","publisher":"American Federation of Information Processing Societies","doi":"10.1109/AFIPS.1978.76","usgsCitation":"Rohde, W.G., 1978, Digital image analysis techniques required for natural resource inventories, <i>in</i> International workshop on managing requirements knowledge, Anaheim, California, United States, June 5-8, 1978, p. 93-106, https://doi.org/10.1109/AFIPS.1978.76.","productDescription":"14 p.","startPage":"93","endPage":"106","costCenters":[],"links":[{"id":406472,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Rohde, Wayne G.","contributorId":84630,"corporation":false,"usgs":true,"family":"Rohde","given":"Wayne","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":851393,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70119875,"text":"70119875 - 1978 - Estimation of the size of a closed population when capture probabilities vary among animals","interactions":[],"lastModifiedDate":"2014-08-11T10:48:49","indexId":"70119875","displayToPublicDate":"1978-06-01T10:45:59","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1040,"text":"Biometrika","active":true,"publicationSubtype":{"id":10}},"title":"Estimation of the size of a closed population when capture probabilities vary among animals","docAbstract":"A model which allows capture probabilities to vary by individuals is introduced for multiple recapture studies n closed populations. The set of individual capture probabilities is modelled as a random sample from an arbitrary probability distribution over the unit interval. We show that the capture frequencies are a sufficient statistic. A nonparametric estimator of population size is developed based on the generalized jackknife; this estimator is found to be a linear combination of the capture frequencies. Finally, tests of underlying assumptions are presented.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biometrika","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Macmillan Co.","publisherLocation":"Cambridge","doi":"10.1093/biomet/65.3.625","usgsCitation":"Burnham, K., and Overton, W., 1978, Estimation of the size of a closed population when capture probabilities vary among animals: Biometrika, v. 65, no. 3, p. 625-633, https://doi.org/10.1093/biomet/65.3.625.","productDescription":"9 p.","startPage":"625","endPage":"633","numberOfPages":"9","costCenters":[],"links":[{"id":291946,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":291945,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1093/biomet/65.3.625"}],"volume":"65","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53e9d8cee4b008eaa4f3f64b","contributors":{"authors":[{"text":"Burnham, K.P.","contributorId":63760,"corporation":false,"usgs":true,"family":"Burnham","given":"K.P.","email":"","affiliations":[],"preferred":false,"id":497827,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Overton, W.S.","contributorId":47488,"corporation":false,"usgs":true,"family":"Overton","given":"W.S.","email":"","affiliations":[],"preferred":false,"id":497826,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012574,"text":"70012574 - 1978 - The role of the U.S. Geological Survey in the lithium industry","interactions":[],"lastModifiedDate":"2023-10-17T15:04:46.795959","indexId":"70012574","displayToPublicDate":"1978-06-01T00:00:00","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1505,"text":"Energy","active":true,"publicationSubtype":{"id":10}},"title":"The role of the U.S. Geological Survey in the lithium industry","docAbstract":"<p id=\"SP0005\">The U.S. Geological Survey has responsibility in the U.S. Department of the Interior to assess the nation's energy and mineral resources. The evaluation of reserves and resources of a commodity such as lithium should be a continuing process in the light of advancing technology and ever-growing knowledge of its geologic occurrence and geochemical behavior. Although reserves of lithium vary with market demand because of the investment required to find, develop, and appraise an ore body, total resources are a function of the geologic occurrence and geochemical behavior of lithium. By studying known deposits and publishing data on their origin and occurrence, the U.S. Geological Survey can aid in the discovery of new deposits and improve the resource base.</p><p id=\"SP0010\">Resource data are used both by the government and the private sector. Government funding for research on energy-related technologies such as electric vehicle batteries and fusion power requires assurance that there will be enough lithium available in time for commercialization. Questions of availability for all mineral commodities must be answered by the U.S. Geological Survey so that intelligent decisions can be made.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0360-5442(78)90026-9","usgsCitation":"Vine, J.D., 1978, The role of the U.S. Geological Survey in the lithium industry: Energy, v. 3, no. 3, p. 299-304, https://doi.org/10.1016/0360-5442(78)90026-9.","productDescription":"6 p.","startPage":"299","endPage":"304","numberOfPages":"6","costCenters":[],"links":[{"id":222665,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"3","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baf9be4b08c986b32490c","contributors":{"authors":[{"text":"Vine, James D.","contributorId":105287,"corporation":false,"usgs":true,"family":"Vine","given":"James","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":363947,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70012585,"text":"70012585 - 1978 - Lithium, a preliminary survey of its mineral occurrence in flint clay and related rock types in the United States","interactions":[],"lastModifiedDate":"2023-10-17T15:08:41.967755","indexId":"70012585","displayToPublicDate":"1978-06-01T00:00:00","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1505,"text":"Energy","active":true,"publicationSubtype":{"id":10}},"title":"Lithium, a preliminary survey of its mineral occurrence in flint clay and related rock types in the United States","docAbstract":"<p id=\"SP0005\">Maximum concentrations of lithium found in samples of flint clay and associated rocks of Pennsylvanian age in different States, in parts per million (ppm), are: Missouri, 5100; Pennsylvania-Maryland, 2100; Kentucky, 890; Ohio, 660; Alabama, 750; and Illinois, 160. Lithium-bearing kaolin deposits are distributed in the Coastal Plain province from New Jersey to Texas, and one occurs in Idaho; maximum lithium concentrations in samples from these deposits range from 64 to 180 ppm. The maximum concentration found in the Arkansas bauxite region is 460 ppm and that in flint clay in Colorado is 370 ppm. Samples from areas other than Pennsylvania, Maryland, Kentucky and Missouri are relatively few in number, represent mostly commercially valuable clays, and represent only a part of the refractory clay deposits in the United States. Data are not available on the clays associated with these deposits that may be unusable because they contain too much lithium as well as other deleterious elements. In both Pennsylvania and Missouri, lithium contents vary regionally between districts and locally between deposits.</p><p id=\"SP0010\">In samples containing more than 2000 ppm lithium, the lithium occurs in a dioctahedral chlorite mineral very similar to cookeite, which previously has not been recognized in sedimentary clays. The associated clays consist chiefly of well-crystallized kaolinite. The dioctahedral chlorite, however, seems to be most abundant where diaspore and boehmite occur along with the kaolinite. Barium, chromium, copper, phosphorus and strontium are present in some samples in amounts of several hundred pans per million or more, and may contribute to the failure of some clays to perform satisfactorily in firing tests.</p><p id=\"SP0015\">Lithium-rich clays could serve as a significant lithium resource in the very distant future. Clays that contain as much as 1% lithium may be common enough in Missouri or in Pennsylvania to be produced as a by-product to help support benefication costs for refractory clays. Sufficient amounts of lithium-rich clay may be found in deposits that have been explored, found unsatisfactory for normal refractory uses, and not developed. The lithium-rich clay in some deposits presently being worked may be worth stockpiling for eventual use.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0360-5442(78)90022-1","usgsCitation":"Tourtelot, H., and Brenner-Tourtelot, E.F., 1978, Lithium, a preliminary survey of its mineral occurrence in flint clay and related rock types in the United States: Energy, v. 3, no. 3, p. 263-272, https://doi.org/10.1016/0360-5442(78)90022-1.","productDescription":"10 pp.","startPage":"263","endPage":"272","numberOfPages":"10","costCenters":[],"links":[{"id":221901,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -130.67138671875,\n   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     [\n              -73.58642578125,\n              39.90973623453719\n            ],\n            [\n              -71.3671875,\n              40.84706035607122\n            ],\n            [\n              -69.63134765625,\n              40.9964840143779\n            ],\n            [\n              -70.0048828125,\n              42.342305278572816\n            ],\n            [\n              -70.3564453125,\n              42.89206418807337\n            ],\n            [\n              -67.2802734375,\n              44.37098696297173\n            ],\n            [\n              -67.0166015625,\n              44.69989765840318\n            ],\n            [\n              -66.796875,\n              44.902577996288876\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.56640625,\n              18.771115062337024\n            ],\n            [\n              -154.68749999999997,\n              19.642587534013032\n            ],\n            [\n              -156.9287109375,\n              21.453068633086783\n            ],\n            [\n              -159.521484375,\n              22.43134015636061\n            ],\n            [\n              -160.5322265625,\n              21.983801417384697\n            ],\n            [\n              -159.9609375,\n              21.207458730482642\n            ],\n            [\n              -158.291015625,\n              20.92039691397189\n            ],\n            [\n              -156.97265625,\n              19.932041306115536\n            ],\n            [\n              -155.9619140625,\n              18.8543103618898\n            ],\n            [\n              -155.56640625,\n              18.771115062337024\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"3","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a482de4b0c8380cd67c83","contributors":{"authors":[{"text":"Tourtelot, Harry A.","contributorId":97903,"corporation":false,"usgs":true,"family":"Tourtelot","given":"Harry A.","affiliations":[],"preferred":false,"id":363981,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brenner-Tourtelot, Elizabeth F.","contributorId":103672,"corporation":false,"usgs":true,"family":"Brenner-Tourtelot","given":"Elizabeth","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":363980,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70012408,"text":"70012408 - 1978 - Lithium-bearing rocks of the Horse Spring Formation, Clark County, Nevada","interactions":[],"lastModifiedDate":"2023-10-17T15:17:44.471846","indexId":"70012408","displayToPublicDate":"1978-06-01T00:00:00","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1505,"text":"Energy","active":true,"publicationSubtype":{"id":10}},"title":"Lithium-bearing rocks of the Horse Spring Formation, Clark County, Nevada","docAbstract":"<p id=\"SP0005\">The Horse Spring Formation of Miocene age in Clark County, Nevada, contains as much as 0.5% Li in individual samples. Rock sequences which average 0.1% Li range from 3 m thick near Gold Butte (south of Mesquite, Nev.) to as much as 40 m thick near Lava Butte (east of Las Vegas, Nev.) about 75 km to the west. The lithium-bearing beds are light colored to white and contain hectorite in a dolomite, magnesite, or calcite matrix. Varied amounts of gypsum, halite, celestite, clinoptilolite, quartz, feldspar, biolite and colemanite are also present locally. Hectorite is the only lithium mineral recognized to date.</p><p id=\"SP0010\">The lithium-rich rocks contain low concentrations of most other minor elements except that boron and strontium are enriched. Rarely, barium, arsenic, and zinc are present in anomalously large amounts.</p><p id=\"SP0015\">The lithium-enriched part of the Horse Spring Formation was formed from a series of volcanic ashes which were deposited in a playa. Relict volcanic ash is recognizable in thin sections as remnant glass shards and vitroclastic textures. Most of the original glass has been altered to clay minerals, carbonate minerals, or zeolites, presumably through interaction with highly saline pore waters. Abundant evidence of spring activity suggests that thermal waters played a part in releasing the lithium from volcanic materials.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/0360-5442(78)90021-X","usgsCitation":"Brenner-Tourtelot, E.F., and Glanzman, R.K., 1978, Lithium-bearing rocks of the Horse Spring Formation, Clark County, Nevada: Energy, v. 3, no. 3, p. 255-262, https://doi.org/10.1016/0360-5442(78)90021-X.","productDescription":"8 p.","startPage":"255","endPage":"262","numberOfPages":"8","costCenters":[],"links":[{"id":222719,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","county":"Clark County","otherGeospatial":"Horse Spring Formation","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -114.05374232611656,\n              36.42386016202295\n            ],\n            [\n              -114.87970101824956,\n              36.42386016202295\n            ],\n            [\n              -114.87970101824956,\n              35.94407538325308\n            ],\n            [\n              -114.05374232611656,\n              35.94407538325308\n            ],\n            [\n              -114.05374232611656,\n              36.42386016202295\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"3","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a482fe4b0c8380cd67c96","contributors":{"authors":[{"text":"Brenner-Tourtelot, Elizabeth F.","contributorId":103672,"corporation":false,"usgs":true,"family":"Brenner-Tourtelot","given":"Elizabeth","email":"","middleInitial":"F.","affiliations":[],"preferred":false,"id":363469,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Glanzman, Richard K.","contributorId":19550,"corporation":false,"usgs":true,"family":"Glanzman","given":"Richard","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":363468,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70209703,"text":"70209703 - 1978 - Paleomagnetic results from the Lassiter Coast, Antarctica, and a test for oroclinal bending of the Antarctic Peninsula","interactions":[],"lastModifiedDate":"2020-04-21T17:29:33.206745","indexId":"70209703","displayToPublicDate":"1978-05-10T12:23:25","publicationYear":"1978","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Paleomagnetic results from the Lassiter Coast, Antarctica, and a test for oroclinal bending of the Antarctic Peninsula","docAbstract":"<p><span>Paleomagnetic results from 17 magnetically stable units of Upper Cretaceous (‘Andean’) plutons and dikes of the Lassiter Coast, on the southern Antarctic Peninsula, define a mean paleomagnetic pole at 87°S, 131°W (α</span><sub>95</sub><span>&nbsp;= 11.5°). This indicates that little latitudinal movement of the southern Antarctic Peninsula has occurred during the past 100 m.y. All magnetically stable intrusives are normally polarized and are believed to have been emplaced during the Late Cretaceous epoch of predominantly normal polarity. There is no evidence of postemplacement remagnetization. The uncertainty in declination at the 95% confidence level is computed for both the Lassiter Coast data and those data available from other Andean sites in the Antarctic Peninsula. Within the limits of uncertainty, data from four localities north of 68°S support the contention of Dalziel et al. (1973) that there has not been any apparent post‐Late‐Cretaceous oroclinal bending in the northern half of the peninsula. For sites to the south in the Lassiter Coast, the uncertainty in declination, due to steep inclinations, is too large to support reliably or deny any large‐scale structural bending.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB083iB05p02293","usgsCitation":"Kellogg, K.S., and Reynolds, R.L., 1978, Paleomagnetic results from the Lassiter Coast, Antarctica, and a test for oroclinal bending of the Antarctic Peninsula: Journal of Geophysical Research B: Solid Earth, v. 83, no. B5, p. 2293-2299, https://doi.org/10.1029/JB083iB05p02293.","productDescription":"7 p.","startPage":"2293","endPage":"2299","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":374168,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Antarctica","otherGeospatial":"Antarctic Peninsula, Lassiter Coast","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -121.640625,\n              -80.05804956215623\n            ],\n            [\n              -40.42968749999999,\n              -80.05804956215623\n            ],\n            [\n              -40.42968749999999,\n              -59.5343180010956\n            ],\n            [\n              -121.640625,\n              -59.5343180010956\n            ],\n            [\n              -121.640625,\n              -80.05804956215623\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"83","issue":"B5","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","contributors":{"authors":[{"text":"Kellogg, Karl S. 0000-0002-6536-9066 kkellogg@usgs.gov","orcid":"https://orcid.org/0000-0002-6536-9066","contributorId":1206,"corporation":false,"usgs":true,"family":"Kellogg","given":"Karl","email":"kkellogg@usgs.gov","middleInitial":"S.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":787606,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reynolds, Richard L. 0000-0002-4572-2942 rreynolds@usgs.gov","orcid":"https://orcid.org/0000-0002-4572-2942","contributorId":139068,"corporation":false,"usgs":true,"family":"Reynolds","given":"Richard","email":"rreynolds@usgs.gov","middleInitial":"L.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":787607,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70232801,"text":"70232801 - 1978 - An evaluation of errors in mapping land use changes for the Central Atlantic Regional Ecological Test Site","interactions":[],"lastModifiedDate":"2022-07-12T17:01:02.32231","indexId":"70232801","displayToPublicDate":"1978-05-01T11:55:40","publicationYear":"1978","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":"An evaluation of errors in mapping land use changes for the Central Atlantic Regional Ecological Test Site","docAbstract":"<p>Land use change maps prepared from high-resolution, high-altitude aerial photographs for the period 1970 to 1972 of the CARETS (Central Atlantic Regional Ecological Test Site) project were analyzed for accuracy. To test for errors of commission, all outlined areas (polygons) of land use change on five l:100000-scale maps were examined for accuracy. An estimate of the errors of omission was obtained by comparing the land use change polygons mapped for the Norfolk SMSA (Norfolk and Virginia Beach Standard Metropolitan Statistical Area) with the changes mapped in a more detailed study of the same area. The results of these studies showed that the largest number of errors was caused by misregistration of the land use change map to the 1970 land use map; however, only a very small percentage of the total land area of the land use change was affected by misregistration. In the Norfolk SMSA, which is an area of rapid urban growth, many of the land use changes had not been mapped. The conclusion is that quality control checks are necessary both during and after map compilation. The experience of the CARETS and other land use mapping experiments conducted in the early 1970's has resulted in the development of carefully designed quality-control procedures implemented in the nationwide mapping of land use and land cover currently being carried out by the U.S. Geological Survey.</p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Fitzpatrick-Lins, K., 1978, An evaluation of errors in mapping land use changes for the Central Atlantic Regional Ecological Test Site: Journal of Research of the U.S. Geological Survey, v. 6, no. 3, p. 339-346.","productDescription":"8 p.","startPage":"339","endPage":"346","costCenters":[],"links":[{"id":403552,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403551,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue3/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Maryland, Virginia","city":"Washington D.C.","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -76.45,\n              39.25\n            ],\n            [\n              -77.25,\n              39.25\n            ],\n            [\n              -77.25,\n              38.45\n            ],\n            [\n              -76.45,\n              38.45\n            ],\n            [\n              -76.45,\n              39.25\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Fitzpatrick-Lins, Katherine","contributorId":75906,"corporation":false,"usgs":true,"family":"Fitzpatrick-Lins","given":"Katherine","email":"","affiliations":[],"preferred":false,"id":846419,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70232796,"text":"70232796 - 1978 - Studies of hydroxyaluminum complexes in aqueous solution","interactions":[],"lastModifiedDate":"2022-07-12T16:54:28.590474","indexId":"70232796","displayToPublicDate":"1978-05-01T11:41:03","publicationYear":"1978","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":"Studies of hydroxyaluminum complexes in aqueous solution","docAbstract":"<p>The coagulating ability of partly neutralized AlCl<sub>3</sub> solutions used in water treatment depends on their basicity, expressed here as the ratio NaOH/AlC<sub>3</sub>. This work presents an identification of the aluminum species active in the coagulation process. The results give rise to an interpretative model which is consistent with those models proposed for high ionic strength by other investigators.</p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Bersillon, J.L., Brown, D.W., Fiessinger, F., and Hem, J.D., 1978, Studies of hydroxyaluminum complexes in aqueous solution: Journal of Research of the U.S. Geological Survey, v. 6, no. 3, p. 325-337.","productDescription":"13 p.","startPage":"325","endPage":"337","costCenters":[],"links":[{"id":403549,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403548,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue3/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bersillon, J. L.","contributorId":293019,"corporation":false,"usgs":false,"family":"Bersillon","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":846415,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brown, D. W.","contributorId":63370,"corporation":false,"usgs":true,"family":"Brown","given":"D.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":846416,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fiessinger, Francois","contributorId":293024,"corporation":false,"usgs":false,"family":"Fiessinger","given":"Francois","email":"","affiliations":[],"preferred":false,"id":846417,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hem, J. D.","contributorId":293025,"corporation":false,"usgs":false,"family":"Hem","given":"J.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":846418,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70232791,"text":"70232791 - 1978 - Iron in water near wastewater lagoons in Yellowstone National Park, Wyoming","interactions":[],"lastModifiedDate":"2022-07-12T16:36:34.720902","indexId":"70232791","displayToPublicDate":"1978-05-01T11:24:58","publicationYear":"1978","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":"Iron in water near wastewater lagoons in Yellowstone National Park, Wyoming","docAbstract":"<p>High dissolved-iron concentrations have been noted in water in wells used to monitor effluent that percolates from wastewater disposal lagoons near Old Faithful in Yellowstone National Park. The concentration of dissolved iron in water in a well increased from 80 <i>μ</i>g/L (micrograms per liter) before a nearby lagoon was .used for disposal of effluent to 17000 <i>μ</i>g/L after the lagoon was used. The effluent contained 180 <i>μ</i>g/L of dissolved iron, and nearby Iron Spring Creek contained 30 <i>μ</i>g/L or less of dissolved iron above and below the lagoons. Organic carbon, nitrogen, and sulfur in the effluent as methane, ammonia, and hydrogen sulfide are oxidized to carbon dioxide, nitrate, and sulfate, respectively, in the unsaturated zone and possibly in the saturated zone as ground water moves through sand and gravel toward Iron Spring Creek. This oxidation results in simultaneous reduction of iron in the sand and gravel from the insoluble ferric phase to the soluble ferrous phase. As ground water high in dissolved iron discharges at land surface near the stream, oxygen from the atmosphere oxidizes the iron back to the insoluble ferric phase, and ferric hydroxide precipitates. Ferric hydroxide also precipitates in some of the monitoring wells. Iron bacteria and other organisms are associated with the precipitates.</p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Cox, E.R., 1978, Iron in water near wastewater lagoons in Yellowstone National Park, Wyoming: Journal of Research of the U.S. Geological Survey, v. 6, no. 3, p. 319-324.","productDescription":"6 p.","startPage":"319","endPage":"324","costCenters":[],"links":[{"id":403538,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403523,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue3/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -110.85,\n              44.452778\n            ],\n            [\n              -110.841667,\n              44.452778\n            ],\n            [\n              -110.841667,\n              44.458333\n            ],\n            [\n              -110.85,\n              44.458333\n            ],\n            [\n              -110.85,\n              44.452778\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Cox, Edward Riley","contributorId":40966,"corporation":false,"usgs":true,"family":"Cox","given":"Edward","email":"","middleInitial":"Riley","affiliations":[],"preferred":false,"id":846409,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70232789,"text":"70232789 - 1978 - Relationship between hydrology and bottomland vegetation in the Ozark Mountains of Missouri","interactions":[],"lastModifiedDate":"2022-07-12T16:22:53.048204","indexId":"70232789","displayToPublicDate":"1978-05-01T11:18:25","publicationYear":"1978","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":"Relationship between hydrology and bottomland vegetation in the Ozark Mountains of Missouri","docAbstract":"<p>The identification of plants and plant assemblages that are common to stream reaches that gain water and those that do not is an important key in the study of limestone hydrology. In the Ozark Mountains of Missouri, a rapid change from a stream-channel growth of abundant willows (<i>Salix</i> spp.), touch-me-nots (<i>Impatiens capensis</i>), and sedges such as <i>Carex Frankii</i> and <i>Eleocharis</i> spp. to an abundant growth of bluestars (<i>Amsonia illustris</i>) indicates a rapid increase in depth to water. Vegetative indicators of hydrologic conditions are most helpful when used in conjunction with other information, but they are independently useful in pinpointing areas of abrupt hydrologic changes. </p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Harvey, E.J., and Skelton, J., 1978, Relationship between hydrology and bottomland vegetation in the Ozark Mountains of Missouri: Journal of Research of the U.S. Geological Survey, v. 6, no. 3, p. 299-305.","productDescription":"7 p.","startPage":"299","endPage":"305","costCenters":[],"links":[{"id":403522,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403520,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue3/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Missouri","otherGeospatial":"Ozark Mountains","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -92.5,\n              37.37015718405753\n            ],\n            [\n              -93.1,\n              37.37015718405753\n            ],\n            [\n              -93.1,\n              38.1\n            ],\n            [\n              -92.5,\n              38.1\n            ],\n            [\n              -92.5,\n              37.37015718405753\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Harvey, E. J.","contributorId":292921,"corporation":false,"usgs":false,"family":"Harvey","given":"E.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":846406,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Skelton, John","contributorId":70392,"corporation":false,"usgs":true,"family":"Skelton","given":"John","email":"","affiliations":[],"preferred":false,"id":846407,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70231274,"text":"70231274 - 1978 - Targeting exploration for nickel laterites in Indonesia with Landsat data","interactions":[],"lastModifiedDate":"2022-05-04T16:25:15.740189","indexId":"70231274","displayToPublicDate":"1978-05-01T11:15:13","publicationYear":"1978","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Targeting exploration for nickel laterites in Indonesia with Landsat data","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the 12th International Symposium on Remote Sensing of Environment","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"12th International Symposium on Remote Sensing of Environment","conferenceDate":"April 20-26, 1978","conferenceLocation":"Manila, Philippines","language":"English","publisher":"University of Michigan","usgsCitation":"Taranik, J., Reynolds, C.D., Sheehan, C.A., and Carter, W.D., 1978, Targeting exploration for nickel laterites in Indonesia with Landsat data, <i>in</i> Proceedings of the 12th International Symposium on Remote Sensing of Environment, v. 2, Manila, Philippines, April 20-26, 1978, p. 1037-1051.","productDescription":"15 p.","startPage":"1037","endPage":"1051","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":400157,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":400155,"rank":1,"type":{"id":15,"text":"Index 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J. V.","contributorId":91658,"corporation":false,"usgs":true,"family":"Taranik","given":"J. V.","affiliations":[],"preferred":false,"id":842179,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reynolds, C. D.","contributorId":13310,"corporation":false,"usgs":true,"family":"Reynolds","given":"C.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":842180,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sheehan, C. A.","contributorId":291374,"corporation":false,"usgs":false,"family":"Sheehan","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":842181,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Carter, W. D.","contributorId":75633,"corporation":false,"usgs":true,"family":"Carter","given":"W.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":842182,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70231272,"text":"70231272 - 1978 - Improving land cover classification by image stratification of Landsat data","interactions":[],"lastModifiedDate":"2022-05-04T16:25:59.575404","indexId":"70231272","displayToPublicDate":"1978-05-01T11:05:54","publicationYear":"1978","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Improving land cover classification by image stratification of Landsat data","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the 12th International Symposium on Remote Sensing of Environment","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"12th International Symposium on Remote Sensing of Environment","conferenceDate":"April 20-16, 1978","conferenceLocation":"Manila, Philippines","language":"English","publisher":"University of Michigan","usgsCitation":"Rohde, W.G., 1978, Improving land cover classification by image stratification of Landsat data, <i>in</i> Proceedings of the 12th International Symposium on Remote Sensing of Environment, v. 1, Manila, Philippines, April 20-16, 1978, p. 729-741.","productDescription":"13 p.","startPage":"729","endPage":"741","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":400151,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://symposia.org/past_symposia.htm"},{"id":400153,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Rohde, W. G.","contributorId":17759,"corporation":false,"usgs":true,"family":"Rohde","given":"W.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":842175,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70232783,"text":"70232783 - 1978 - Infiltration from tributary streams in the Susquehanna River basin, New York","interactions":[],"lastModifiedDate":"2022-07-12T16:13:32.74323","indexId":"70232783","displayToPublicDate":"1978-05-01T11:05:52","publicationYear":"1978","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":"Infiltration from tributary streams in the Susquehanna River basin, New York","docAbstract":"<p>As tributary streams in the Susquehanna River basin leave narrow upland valleys and enter larger valleys floored with permeable stratified glacial drift, they lose water by infiltration through streambeds. The infiltration rate is generally slow near the point of entering a larger valley, but farther downstream it is much faster and is approximately constant per unit distance along a given stream. A conservative average value of infiltration rate in the downstream reach is 10 liters per second per 100 meters of channel. Infiltration from these streams is little influenced by stream width, depth, or temperature and seems to be controlled by permeability distribution beyond the streambed in the alluvium or underlying glacial drift rather than by permeability at the streambed. Hydraulic conductivity of earth materials near each of the streams studied was calculated by applying models that describe steady-state saturated flow into isotropic materials with various boundary conditions. Hydraulic conductivities of 4 to 41 meters per day were obtained; 13 meters per day is suggested as a conservative average value for silty gravel alluvium in the Susquehanna River basin.</p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Randall, A.D., 1978, Infiltration from tributary streams in the Susquehanna River basin, New York: Journal of Research of the U.S. Geological Survey, v. 6, no. 3, p. 285-297.","productDescription":"13 p.","startPage":"285","endPage":"297","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"links":[{"id":403518,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403517,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue3/report.pdf"}],"country":"United States","state":"New York","otherGeospatial":"Susquehanna River basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -76.80267333984375,\n              42.0064481470799\n            ],\n            [\n              -75.80017089843749,\n              42.0064481470799\n            ],\n            [\n              -75.80017089843749,\n              42.512601715736665\n            ],\n            [\n              -76.80267333984375,\n              42.512601715736665\n            ],\n            [\n              -76.80267333984375,\n              42.0064481470799\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Randall, Allan D. arandall@usgs.gov","contributorId":1168,"corporation":false,"usgs":true,"family":"Randall","given":"Allan","email":"arandall@usgs.gov","middleInitial":"D.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":846404,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70231270,"text":"70231270 - 1978 - An example of the merging of Landsat, topographic, and aeromagnetic data in a geologic and hydrologic study of a karst region — Claunch, New Mexico","interactions":[],"lastModifiedDate":"2022-05-04T16:27:02.469763","indexId":"70231270","displayToPublicDate":"1978-05-01T10:51:50","publicationYear":"1978","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"An example of the merging of Landsat, topographic, and aeromagnetic data in a geologic and hydrologic study of a karst region — Claunch, New Mexico","docAbstract":"<p>No abstract available.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the twelfth International Symposium on Remote Sensing of Environment","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Twelfth International Symposium on Remote Sensing of Environment","conferenceDate":"April 20-26, 1978","conferenceLocation":"Manila, Philippines","language":"English","publisher":"University of Michigan","usgsCitation":"Fischer, W.A., Orr, D.G., and Greenlee, D.D., 1978, An example of the merging of Landsat, topographic, and aeromagnetic data in a geologic and hydrologic study of a karst region — Claunch, New Mexico, <i>in</i> Proceedings of the twelfth International Symposium on Remote Sensing of Environment, v. 2, Manila, Philippines, April 20-26, 1978, p. 805-823.","productDescription":"19 p.","startPage":"805","endPage":"823","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":400146,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://symposia.org/past_symposia.htm"},{"id":400148,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Mexico","city":"Claunch","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -106.1121368408203,\n              34.05152161016494\n            ],\n            [\n              -105.87730407714842,\n              34.05152161016494\n            ],\n            [\n              -105.87730407714842,\n              34.25154099726973\n            ],\n            [\n              -106.1121368408203,\n              34.25154099726973\n            ],\n            [\n              -106.1121368408203,\n              34.05152161016494\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Fischer, W. A.","contributorId":91571,"corporation":false,"usgs":true,"family":"Fischer","given":"W.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":842169,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Orr, Donald G.","contributorId":6454,"corporation":false,"usgs":true,"family":"Orr","given":"Donald","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":842170,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Greenlee, D. D.","contributorId":20079,"corporation":false,"usgs":true,"family":"Greenlee","given":"D.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":842171,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70232923,"text":"70232923 - 1978 - Chemistry of Tertiary volcanic rocks in the Eldorado Mountains, Clark County, Nevada, and comparisons with rocks from some nearby areas","interactions":[],"lastModifiedDate":"2022-07-13T15:09:03.08369","indexId":"70232923","displayToPublicDate":"1978-05-01T10:03:42","publicationYear":"1978","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":"Chemistry of Tertiary volcanic rocks in the Eldorado Mountains, Clark County, Nevada, and comparisons with rocks from some nearby areas","docAbstract":"<p>Chemical variations of 27 rocks that erupted from in and near the Eldorado Mountains, southern Nevada, show (1) fair to good correlation suggestive of a cogenetic suite, (2) a range of uncorrected silica values from about 48 to 74 weight percent with no strong tendency toward bimodality, (3) a calc-alkaline characteristic, and (4) a shift from early eruptions having an anomalously low level of iron enrichment to later eruptions having a more normal level of iron enrichment. Analyses of rocks not known to have been erupted from the Eldorado Mountains (for example, five analyses of the tuff of Bridge Spring and two analyses of the Fortification Basalt Member of the Muddy Creek Formation) are not anomalous when compared with the other rocks, except that iron concentration in the Fortification Basalt Member may be higher than normal. Extensive K-Ar age data provide a clear time framework for the chemical changes as well as for the structural history of the area. The inception of intense extensional tectonism about 15 million years ago was marked by an abrupt shift to more iron-rich and more typically calc-alkalic volcanic products (Mount Davis Volcanics) than those erupted earlier (Patsy Mine Volcanics), but no corresponding shift in K<sub>2</sub>O or total alkali contents or ratios is recognized nor is there any obvious shift toward bimodality in rocks younger than 15 million years. These data, together with data from the Oatman district of Arizona, 100 kilometers to the south-southeast, indicate that the northern part of the lower Colorado River area does not fit into the published Cenozoic patterns of volcanic and tectonic evolution of the western United States. A brief review of nearby areas indicates that they may not fit well either. </p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Anderson, R.E., 1978, Chemistry of Tertiary volcanic rocks in the Eldorado Mountains, Clark County, Nevada, and comparisons with rocks from some nearby areas: Journal of Research of the U.S. Geological Survey, v. 6, no. 3, p. 409-424.","productDescription":"16 p.","startPage":"409","endPage":"424","costCenters":[],"links":[{"id":403612,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403611,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue3/report.pdf"}],"country":"United States","state":"Nevada","county":"Clark County","otherGeospatial":"Eldorado Mountains","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -114.59838867187499,\n              35.02099970111467\n            ],\n            [\n              -114.70825195312501,\n              36.155617833818525\n            ],\n            [\n              -114.18090820312499,\n              36.049098959065645\n            ],\n            [\n              -114.04907226562499,\n              36.30627216957992\n            ],\n            [\n              -114.0380859375,\n              37.78808138412046\n            ],\n            [\n              -114.0380859375,\n              38.35888785866677\n            ],\n            [\n              -117.04833984375001,\n              38.272688535980976\n            ],\n            [\n              -117.02636718749999,\n              36.83566824724438\n            ],\n            [\n              -114.59838867187499,\n              35.02099970111467\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Anderson, R. Ernest","contributorId":104484,"corporation":false,"usgs":true,"family":"Anderson","given":"R.","email":"","middleInitial":"Ernest","affiliations":[],"preferred":false,"id":846513,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70232920,"text":"70232920 - 1978 - Pleistocene history of volcanism and the Owens River near Little Lake, California","interactions":[],"lastModifiedDate":"2022-07-13T14:51:04.73016","indexId":"70232920","displayToPublicDate":"1978-05-01T09:43:12","publicationYear":"1978","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":"Pleistocene history of volcanism and the Owens River near Little Lake, California","docAbstract":"<p>During pluvial periods of the Pleistocene and Holocene, a large river flowed south from Owens Lake to China Lake between the Sierra Nevada and the Coso Range. The most recent channel, dry during historic time, is clearly marked by cliffs and falls. An older, now-abandoned part of the channel beneath Pleistocene lavas east of the present course is inferred from a meander-shaped ridge in Mesozoic basement rocks and a strong positive magnetic anomaly, presumably produced by a wedge of canyon-filling basalt. Three cycles of eruption and stream erosion have occurred along the present course. The first resulted when water impounded by damming of the now-abandoned eastern course found its way along the west margin of a basalt flow at the base of the Sierra Nevada escarpment, eventually carving a canyon at least 150 meters deep. Subsequently, two cycles, each consisting of an intracanyon basalt flow followed by major stream erosion, modified this canyon to its present configuration. A potassium-argon age of about 440000 years before present for the oldest of the three eroded lavas indicates that the river was not diverted from its easterly course until after that time. The age and character of lacustrine deposits in Searles Lake, a downstream part of the same drainage system, indicate that the greatest discharge of the river, and therefore, erosion of the two younger lavas since 440000 years B.P., probably occurred between 130000 and 10000 years B.P. An estimate of the rate of erosion during this period of time together with loosely constrained potassium-argon ages for the basalt of intermediate age suggests that the youngest lava is probably a few tens of thousands of years old and the intermediate lava somewhat less than 100000 years old. The youthfulness of the youngest basalt suggests that a fourth cycle of an intracanyon lava flow followed by stream erosion is a likely event for the near geologic future.</p>","language":"English","publisher":"U.S. Geological Survey","usgsCitation":"Duffield, W.A., and Smith, G., 1978, Pleistocene history of volcanism and the Owens River near Little Lake, California: Journal of Research of the U.S. Geological Survey, v. 6, no. 3, p. 395-408.","productDescription":"14 p.","startPage":"395","endPage":"408","costCenters":[],"links":[{"id":403608,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":403607,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1978/vol6issue3/report.pdf"}],"country":"United States","state":"California","city":"Little Lake","otherGeospatial":"Owens River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -118.2,\n              35.594785665487244\n            ],\n            [\n              -117.54959106445312,\n              35.594785665487244\n            ],\n            [\n              -117.54959106445312,\n              36.6\n            ],\n            [\n              -118.2,\n              36.6\n            ],\n            [\n              -118.2,\n              35.594785665487244\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"6","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Duffield, Wendell A.","contributorId":14363,"corporation":false,"usgs":true,"family":"Duffield","given":"Wendell","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":846506,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, George I.","contributorId":57096,"corporation":false,"usgs":true,"family":"Smith","given":"George I.","affiliations":[],"preferred":false,"id":846507,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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