{"pageNumber":"6254","pageRowStart":"156325","pageSize":"25","recordCount":184918,"records":[{"id":70241231,"text":"70241231 - 1973 - Annealing history limits for inhomogeneous, native gold grains as determined from Au-Ag diffusion rates","interactions":[],"lastModifiedDate":"2023-03-15T15:35:15.34565","indexId":"70241231","displayToPublicDate":"1973-12-01T10:13:23","publicationYear":"1973","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":"Annealing history limits for inhomogeneous, native gold grains as determined from Au-Ag diffusion rates","docAbstract":"<p><span>Quantitative study of intrinsic inhomogeneities in native gold grains from three deposits in the western United States has revealed concentration profiles that represent the integrated sum of natural diffusion plus original chemical heterogeneity. By assuming that measured natural concentration gradients result solely from diffusion, upper limits may be placed on the temperature-time annealing history of the gold nuggets. This assumption focuses on the end member case in which an initial step-discontinuity is assumed between measured extremes of concentration.Concentration changes of up to 30 weight percent Ag indicate probable deposition temperatures of less than 300 degrees C for electrum from Copper Basin, Arizona, and Alder Gulch, Montana. The gold in the Homestake, South Dakota, deposit probably was formed at temperatures well under 400 degrees C.In support of this study, new data for interdiffusion in the Au-Ag system were obtained from a series of annealing experiments followed by electron microprobe analysis. The interdiffusion coefficient, D, in the range 10 (super -10) to 10 (super -17) cm&nbsp;</span><sup>2</sup><span>&nbsp;sec (super -1) was determined from measured profiles across synthetic alloy pairs held at eight fixed temperatures from 297 degrees to 799 degrees C, for periods ranging from 32 hours to 730 days.</span></p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.68.8.1275","usgsCitation":"Czamanske, G., Desborough, G.A., and Goff, F.E., 1973, Annealing history limits for inhomogeneous, native gold grains as determined from Au-Ag diffusion rates: Economic Geology, v. 68, no. 8, p. 1275-1288, https://doi.org/10.2113/gsecongeo.68.8.1275.","productDescription":"14 p.","startPage":"1275","endPage":"1288","costCenters":[],"links":[{"id":414232,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona, Montana, South Dakota","city":"Alder Gulch, Copper Basin","otherGeospatial":"Homestake Mine","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -111.72586770554216,\n              33.206035977650416\n            ],\n            [\n              -111.72586770554216,\n              33.045697592858005\n            ],\n            [\n              -111.38402130894042,\n              33.045697592858005\n            ],\n            [\n              -111.38402130894042,\n              33.206035977650416\n            ],\n            [\n              -111.72586770554216,\n              33.206035977650416\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -112.11506665453493,\n              45.340242514030905\n            ],\n            [\n              -112.11506665453493,\n              45.32027780464435\n            ],\n            [\n              -112.06373845875919,\n              45.32027780464435\n            ],\n            [\n              -112.06373845875919,\n              45.340242514030905\n            ],\n            [\n              -112.11506665453493,\n              45.340242514030905\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -103.80998220821769,\n              44.380471467417095\n            ],\n            [\n              -103.80998220821769,\n              44.337712239048955\n            ],\n            [\n              -103.706963280987,\n              44.337712239048955\n            ],\n            [\n              -103.706963280987,\n              44.380471467417095\n            ],\n            [\n              -103.80998220821769,\n              44.380471467417095\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"68","issue":"8","noUsgsAuthors":false,"publicationDate":"1973-12-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Czamanske, Gerald K.","contributorId":104907,"corporation":false,"usgs":true,"family":"Czamanske","given":"Gerald K.","affiliations":[],"preferred":false,"id":866602,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Desborough, George A.","contributorId":101661,"corporation":false,"usgs":true,"family":"Desborough","given":"George","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":866603,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goff, Fraser E.","contributorId":291490,"corporation":false,"usgs":false,"family":"Goff","given":"Fraser","email":"","middleInitial":"E.","affiliations":[{"id":12545,"text":"USGS retired","active":true,"usgs":false}],"preferred":false,"id":866604,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70241230,"text":"70241230 - 1973 - Hydrothermal alteration in Puerto Rican porphyry copper deposits","interactions":[],"lastModifiedDate":"2023-03-15T15:06:03.956833","indexId":"70241230","displayToPublicDate":"1973-12-01T09:57:55","publicationYear":"1973","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":"Hydrothermal alteration in Puerto Rican porphyry copper deposits","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.68.8.1329","usgsCitation":"Cox, D.P., Larson, R.R., and Tripp, R.B., 1973, Hydrothermal alteration in Puerto Rican porphyry copper deposits: Economic Geology, v. 68, no. 8, p. 1329-1334, https://doi.org/10.2113/gsecongeo.68.8.1329.","productDescription":"6 p.","startPage":"1329","endPage":"1334","costCenters":[],"links":[{"id":414231,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Puerto Rico","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -67.24003354016162,\n              18.285233072529437\n            ],\n            [\n              -66.92446619869212,\n              18.25098589851285\n            ],\n            [\n              -66.99960127999437,\n              17.965331248867955\n            ],\n            [\n              -66.95151482796106,\n              17.913864105951532\n            ],\n            [\n              -66.90042297267509,\n              17.93388088437321\n            ],\n            [\n              -66.84332031088594,\n              17.93102148309886\n            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R.","contributorId":268802,"corporation":false,"usgs":false,"family":"Larson","given":"Richard","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":866600,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tripp, Richard B.","contributorId":25997,"corporation":false,"usgs":true,"family":"Tripp","given":"Richard","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":866601,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70241668,"text":"70241668 - 1973 - Rayleigh‐type surface wave on a linear viscoelastic half‐space","interactions":[],"lastModifiedDate":"2023-03-24T14:55:23.031388","indexId":"70241668","displayToPublicDate":"1973-12-01T09:44:51","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2516,"text":"Journal of the Acoustical Society of America","active":true,"publicationSubtype":{"id":10}},"title":"Rayleigh‐type surface wave on a linear viscoelastic half‐space","docAbstract":"<p><span>The analytic solution for a Rayleigh‐type&nbsp;</span>surface wave<span>&nbsp;on a&nbsp;</span>linear viscoelastic<span>&nbsp;half‐space is obtained. The general&nbsp;</span>viscoelastic<span>&nbsp;solution predicts several&nbsp;</span>properties<span>&nbsp;of the&nbsp;</span>surface wave<span>&nbsp;distinct from those predicted by&nbsp;</span>elasticity.<span>&nbsp;The velocity,&nbsp;</span>absorption coefficient,<span>&nbsp;and displacement field are described&nbsp;</span>theoretically.</p>","language":"English","publisher":"Acoustical Society of America","doi":"10.1121/1.1914463","usgsCitation":"Borcherdt, R.D., 1973, Rayleigh‐type surface wave on a linear viscoelastic half‐space: Journal of the Acoustical Society of America, v. 54, no. 6, p. 1651-1653, https://doi.org/10.1121/1.1914463.","productDescription":"3 p.","startPage":"1651","endPage":"1653","costCenters":[],"links":[{"id":480656,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1121/1.1914463","text":"Publisher Index Page"},{"id":414703,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"6","noUsgsAuthors":false,"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":867532,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70241868,"text":"70241868 - 1973 - Geologic factors affecting compaction of deposits in a land-subsidence area","interactions":[],"lastModifiedDate":"2023-03-29T13:52:19.535178","indexId":"70241868","displayToPublicDate":"1973-12-01T08:47:29","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Geologic factors affecting compaction of deposits in a land-subsidence area","docAbstract":"<p>In the west-central San Joaquin Valley, California, pumping of ground water has changed water levels, thereby increasing the stresses that tend to compact alluvium by as much as 50 percent and creating a large area of intense land subsidence.</p><p>The estimated 1943–1960 specific unit compaction (compaction during a time period, per unit thickness, per unit applied-stress increase) of the deposits in a northern subarea is four times that of a southern subarea, which suggests marked differences in the compressibility of the deposits. A third of the compressibility difference is real and is due to less prior total applied stress in the northern than in the southern subarea.</p><p>The other two-thirds of the compressibility difference is only apparent and is attributed to different water-expulsion rates in the clayey beds of different depositional environments. In the northern subarea, the deposits are mainly flood-plain sediments that contain extensive sand beds and thin clayey beds that are dewatered relatively quickly under increasing effective stress. In the southern subarea, the sediments are mainly alluvial-fan deposits that contain thick clayey sequences adjacent to lensing sandy beds. These deposits are de-watered more slowly than those in the northern subarea.</p><p>Variations of mean lithology in the chief compacting zone could not be correlated with variations in the specific unit compaction of the deposits.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1973)84<3783:GFACOD>2.0.CO;2","usgsCitation":"Bull, W.B., 1973, Geologic factors affecting compaction of deposits in a land-subsidence area: Geological Society of America Bulletin, v. 84, no. 12, p. 3783-3802, https://doi.org/10.1130/0016-7606(1973)84<3783:GFACOD>2.0.CO;2.","productDescription":"20 p.","startPage":"3783","endPage":"3802","costCenters":[],"links":[{"id":414895,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"San Joaquin Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -120.35746288036006,\n              38.13312825895784\n            ],\n            [\n              -120.53105995747384,\n              38.256520706440995\n            ],\n            [\n              -121.70181326512369,\n              37.802004789813125\n            ],\n            [\n              -121.50865485274531,\n              37.556878251392675\n            ],\n            [\n              -120.58094260405235,\n              36.354060008522765\n            ],\n            [\n              -120.24252200430453,\n              35.65038148239793\n            ],\n            [\n              -119.51694986254691,\n              34.94145470111849\n            ],\n            [\n              -118.77718624215447,\n              34.88440116587513\n            ],\n            [\n              -118.47954946198888,\n              35.513980851524835\n            ],\n            [\n              -118.78601558017306,\n              36.40932502176584\n            ],\n            [\n              -119.48617719748387,\n              37.205195140576066\n            ],\n            [\n              -120.35746288036006,\n              38.13312825895784\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"84","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bull, William B.","contributorId":8919,"corporation":false,"usgs":true,"family":"Bull","given":"William","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":868015,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70161850,"text":"70161850 - 1973 - Stress of formalin treatment in juvenile spring chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Salmo gairdneri>)","interactions":[],"lastModifiedDate":"2025-03-04T16:37:05.7601","indexId":"70161850","displayToPublicDate":"1973-11-27T00:00:00","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2543,"text":"Journal of the Fisheries Research Board of Canada","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Stress of formalin treatment in juvenile spring chinook salmon (<i>Oncorhynchus tshawytscha</i>) and steelhead trout (<i>Salmo gairdneri</i>)","title":"Stress of formalin treatment in juvenile spring chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Salmo gairdneri>)","docAbstract":"<p class=\"p1\"><span>The physiological stress of 200 ppm formalin treatments at 10 C is more severe in the juvenile steelhead trout (</span><i>Salmo gairdneri</i><span>) than in the spring chinook salmon (</span><i>Oncorhynchus tshawytscha</i><span>). In the steelhead, a marked hypochloremia follows a 1-hr treatment and recovery requires about 24 hr. During longer treatments, hypercholesterolemia together with reduced regulatory precision, hypercortisolemia, alkaline reserve depletion, and hypocapnia unaccompanied by a fall in blood&nbsp;</span><i>p</i><span>H occur — suggestive of compensated respiratory alkalosis. In the spring chinook, hypochloremia and reduced plasma cholesterol regulatory precision are the significant treatment side effects but recovery requires only a few hours. Formalin treatments also cause epithelial separation, hypertrophy, and necrosis in the gills of both fishes but again, consistent with the physiological dysfunctions, these are more severe in the steelhead.</span></p>","language":"English","publisher":"Canadian Science Publishing","doi":"10.1139/f74-029","usgsCitation":"Wedemeyer, G., and Yasutake, W.T., 1973, Stress of formalin treatment in juvenile spring chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Salmo gairdneri>): Journal of the Fisheries Research Board of Canada, v. 31, no. 2, p. 179-184, https://doi.org/10.1139/f74-029.","productDescription":"6 p.","startPage":"179","endPage":"184","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":313989,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"31","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"568e4931e4b0e7a44bc41a9c","contributors":{"authors":[{"text":"Wedemeyer, Gary gwedemeyer@usgs.gov","contributorId":5504,"corporation":false,"usgs":true,"family":"Wedemeyer","given":"Gary","email":"gwedemeyer@usgs.gov","affiliations":[],"preferred":true,"id":587923,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yasutake, W. T.","contributorId":103222,"corporation":false,"usgs":true,"family":"Yasutake","given":"W.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":587924,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70011039,"text":"70011039 - 1973 - Radiometric ages of Kodiak Seamount and Giacomini Guyot, Gulf of Alaska: Implications for Circum-Pacific tectonics","interactions":[],"lastModifiedDate":"2026-01-23T16:29:44.72819","indexId":"70011039","displayToPublicDate":"1973-11-09T00:00:00","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3338,"text":"Science","active":true,"publicationSubtype":{"id":10}},"title":"Radiometric ages of Kodiak Seamount and Giacomini Guyot, Gulf of Alaska: Implications for Circum-Pacific tectonics","docAbstract":"<p><span id=\"_mce_caret\" data-mce-bogus=\"1\" data-mce-type=\"format-caret\"><span>Kodiak Seamount and Giacomini Guyot have been dated at 22.6 ± 1.1 and 19.9 ± 1.0 [2σ (standard deviation)] × 10</span><sup>6</sup><span>&nbsp;years, respectively. Concordant whole-rock and plagioclase potassium-argon dates and fission-track apatite ages demonstrate that significant quantities of excess radiogenic&nbsp;</span><sup>40</sup><span>Ar are not present in the dated samples. These seamounts are the northwesternmost edifices of the Pratt-Welker chain, which cuts obliquely across magnetic anomaly patterns in an older northeastern Pacific sea floor. The older of the two dated seamounts is in the Aleutian Trench, apparently about to be subducted. If one assumes that seamounts are generated by plate motion over a fixed hot spot in the mantle, a Pacific-plate motion of 6.6 centimeters per year during early Miocene time may be calculated.</span></span></p>","language":"English","publisher":"AAAS","doi":"10.1126/science.182.4112.579","issn":"00368075","usgsCitation":"Turner, D.L., Forbes, R.B., and Naeser, C.W., 1973, Radiometric ages of Kodiak Seamount and Giacomini Guyot, Gulf of Alaska: Implications for Circum-Pacific tectonics: Science, v. 182, no. 4112, p. 579-581, https://doi.org/10.1126/science.182.4112.579.","productDescription":"3 p.","startPage":"579","endPage":"581","costCenters":[],"links":[{"id":220682,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Gulf of Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -161.71874999999997,\n              55.60317816902704\n            ],\n            [\n              -138.3837890625,\n              55.60317816902704\n            ],\n            [\n              -138.3837890625,\n              61.543641475549954\n            ],\n            [\n              -161.71874999999997,\n              61.543641475549954\n            ],\n            [\n              -161.71874999999997,\n              55.60317816902704\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"182","issue":"4112","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9404e4b0c8380cd8115b","contributors":{"authors":[{"text":"Turner, D. L.","contributorId":53776,"corporation":false,"usgs":true,"family":"Turner","given":"D.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":360131,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Forbes, R. B.","contributorId":12848,"corporation":false,"usgs":true,"family":"Forbes","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":360129,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Naeser, Charles W.","contributorId":76281,"corporation":false,"usgs":true,"family":"Naeser","given":"Charles","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":360130,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70241803,"text":"70241803 - 1973 - Westward tidal lag as the driving force of plate tectonics","interactions":[],"lastModifiedDate":"2023-03-28T00:21:25.685069","indexId":"70241803","displayToPublicDate":"1973-11-01T19:15:52","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Westward tidal lag as the driving force of plate tectonics","docAbstract":"<p><span>As spreading at known interarc basins occurs to the west of westward-dipping subduction zones, and movement of the lower plates is also to the west, it is suggested that all plates move chiefly westward. Rates of motion are equal to a net difference between eastward and westward transport on semidiurnal tidal bulges. Eastward-dipping subduction zones at the leading edges of plates that are primarily continental are overridden by less dense material and are forced to step westward. Yet lines of downbending of westward-dipping subduction zones are fixed with respect to the lower mantle, and interarc basins result from westward movement of their adjacent plates. These fixed subduction zones can be used to calibrate previously measured movement between plates; they suggest that the westward transport imparted during each tidal cycle is as much as 0.3 mm.</span></p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1973)1<99:WTLATD>2.0.CO;2","usgsCitation":"Moore, G.W., 1973, Westward tidal lag as the driving force of plate tectonics: Geology, v. 1, no. 3, p. 99-100, https://doi.org/10.1130/0091-7613(1973)1<99:WTLATD>2.0.CO;2.","productDescription":"2 p.","startPage":"99","endPage":"100","costCenters":[],"links":[{"id":414790,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Moore, George W.","contributorId":21625,"corporation":false,"usgs":true,"family":"Moore","given":"George","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":867767,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70241589,"text":"70241589 - 1973 - Age and correlation of the Windermere Group in northeastern Washington","interactions":[],"lastModifiedDate":"2023-03-23T20:14:28.527693","indexId":"70241589","displayToPublicDate":"1973-11-01T15:08:44","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Age and correlation of the Windermere Group in northeastern Washington","docAbstract":"<p><span>Greenstone of basaltic composition forms the middle part of the Windermere System in southern British Columbia and the correlative Windermere Group in northeastern Washington. The greenstone, together with the rest of the Windermere in this region, is highly sheared, altered, and metamorphosed, except for a small exposed mass of relatively unaffected rocks near the community of Chewelah, Washington. K-Ar ages on whole rocks and mineral separates from the Chewelah area indicate the greenstone was probably extruded between 827 and 918 m.y. ago.</span></p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1973)84<3723:AACOTW>2.0.CO;2","usgsCitation":"Miller, F.K., McKee, E., and Yates, R.G., 1973, Age and correlation of the Windermere Group in northeastern Washington: Geological Society of America Bulletin, v. 84, no. 11, p. 3723-3729, https://doi.org/10.1130/0016-7606(1973)84<3723:AACOTW>2.0.CO;2.","productDescription":"7 p.","startPage":"3723","endPage":"3729","costCenters":[],"links":[{"id":414658,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Windermere Group","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -119.48744751570439,\n              49.00490514286989\n            ],\n            [\n              -119.48744751570439,\n              47.68659053507656\n            ],\n            [\n              -117.03624084430669,\n              47.68659053507656\n            ],\n            [\n              -117.03624084430669,\n              49.00490514286989\n            ],\n            [\n              -119.48744751570439,\n              49.00490514286989\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"84","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Miller, F. K.","contributorId":10803,"corporation":false,"usgs":true,"family":"Miller","given":"F.","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":867394,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McKee, E.H.","contributorId":20736,"corporation":false,"usgs":true,"family":"McKee","given":"E.H.","email":"","affiliations":[],"preferred":false,"id":867395,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Yates, R. G.","contributorId":88708,"corporation":false,"usgs":true,"family":"Yates","given":"R.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":867396,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70241797,"text":"70241797 - 1973 - What about ground water?","interactions":[],"lastModifiedDate":"2023-03-27T19:05:53.425851","indexId":"70241797","displayToPublicDate":"1973-11-01T13:58:25","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"What about ground water?","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"The Groundwater Association","doi":"10.1111/j.1745-6584.1973.tb02992.x","usgsCitation":"Heath, R., 1973, What about ground water?: Groundwater, v. 11, no. 6, p. 50-51, https://doi.org/10.1111/j.1745-6584.1973.tb02992.x.","productDescription":"2 p.","startPage":"50","endPage":"51","costCenters":[],"links":[{"id":414783,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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,{"id":70241487,"text":"70241487 - 1973 - Variations in Sr, Rb, K, Na, and Initial Sr87/Sr86 in Mesozoic Granitic Rocks and Intruded Wall Rocks in Central California","interactions":[],"lastModifiedDate":"2023-03-21T19:00:05.843808","indexId":"70241487","displayToPublicDate":"1973-11-01T13:50:16","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Variations in Sr, Rb, K, Na, and Initial Sr<sup>87</sup>/Sr<sup>86</sup> in Mesozoic Granitic Rocks and Intruded Wall Rocks in Central California","title":"Variations in Sr, Rb, K, Na, and Initial Sr87/Sr86 in Mesozoic Granitic Rocks and Intruded Wall Rocks in Central California","docAbstract":"<p>Initial Sr<sup>87</sup>/Sr<sup>86</sup><span>&nbsp;</span>of granitic rocks which are exposed north of the Garlock fault in California, and which represent the entire 130-m.y. time span of emplacement during the Mesozoic, ranges mainly from 0.7031 to 0.7082, with one value of 0.7094. A systematic areal variation, independent of age, exists for initial Sr<sup>87</sup>/Sr<sup>86</sup><span>&nbsp;</span>in these granitic rocks and is the same as the areal variation in initial Sr<sup>87</sup>/Sr<sup>86</sup><span>&nbsp;</span>of superjacent upper Cenozoic basalts and andesites.</p><p>Two values of initial Sr<sup>87</sup>/Sr<sup>86</sup>, 0.7040 and 0.7060, mark natural separations of granitic rock data on K-Rb, K-Sr, and Rb/Sr-Rb variation diagrams, and also, when contoured, seem to represent geographic markers of paleo-geographic, geochemical, and physiographic significance. Upper Precambrian sedimentary and metamorphic rocks in California crop out only in the region where initial Sr<sup>87</sup>/Sr<sup>86</sup><span>&nbsp;</span>of granitic rocks is greater than 0.7060. A line of initial Sr<sup>87</sup>/Sr<sup>86</sup><span>&nbsp;</span>= 0.7060 is approximately coincident with the boundary between Paleozoic eugeosynclinal and miogeosynclinal rocks. Granitic rocks intruded into Paleozoic miogeosynclinal rocks have initial Sr<sup>87</sup>/Sr<sup>86</sup><span>&nbsp;</span>greater than 0.7060, whereas those intruded into eugeosynclinal Paleozoic rocks have initial Sr<sup>87</sup>/Sr<sup>86</sup><span>&nbsp;</span>less than 0.7060. The line of initial Sr<sup>87</sup>/Sr<sup>86</sup><span>&nbsp;</span>= 0.7040 is the eastern limit of principal exposures of ultramafic rocks, the western limit of Cretaceous granitic rocks, and is coincident with an abrupt change in “topographic expression” on the Bouguer gravity map of California. Correlation of the isotopic variations with these major crustal features suggests that there has been a sharp lateral contrast in crust-mantle chemistry across the region of study that has been fixed in position from the Precambrian to the present time.</p><p>The chemical and isotopic variations observed are best explained if the parent magmas of the majority of granitic rocks investigated were derived in a region that was laterally variable in composition and in a zone of melting that intersected both upper mantle and lower crust. However, some igneous rocks, such as Jurassic volcanic rocks in wall rocks and roof pendants and some granitic rocks with high strontium concentrations and low Rb-Sr ratios, suggest that deeper sources are also involved in the total spectrum of igneous rocks in the region.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1973)84<3489:VISRKN>2.0.CO;2","usgsCitation":"Kistler, R.W., and Peterman, Z.E., 1973, Variations in Sr, Rb, K, Na, and Initial Sr87/Sr86 in Mesozoic Granitic Rocks and Intruded Wall Rocks in Central California: Geological Society of America Bulletin, v. 84, no. 11, p. 3489-3512, https://doi.org/10.1130/0016-7606(1973)84<3489:VISRKN>2.0.CO;2.","productDescription":"23 p.","startPage":"3489","endPage":"3512","costCenters":[],"links":[{"id":414482,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -122.20533281313979,\n              40.42429466387006\n            ],\n            [\n              -121.13423967713446,\n              38.76444227129281\n            ],\n            [\n              -120.76097994792032,\n              38.02674663755306\n            ],\n            [\n              -120.2822337734942,\n              37.267563216163396\n            ],\n            [\n              -119.21925497942821,\n              36.443003503084654\n            ],\n            [\n              -118.98393906318458,\n              35.37174364660258\n            ],\n            [\n              -118.58633630815233,\n              34.780728225669776\n            ],\n            [\n              -117.89661724330026,\n              35.27243450243415\n            ],\n            [\n              -117.59638659154092,\n              35.39820547854103\n            ],\n            [\n              -116.50906477165633,\n              35.550192445638686\n            ],\n            [\n              -116.33054924898866,\n              36.35156375846992\n            ],\n            [\n              -119.99823180561347,\n              39.02642088257426\n            ],\n            [\n              -119.99823180561347,\n              40.769325113633926\n            ],\n            [\n              -120.85835205119372,\n              41.11868651760588\n            ],\n            [\n              -121.51561374828796,\n              41.13091124098662\n            ],\n            [\n              -122.05116031629072,\n              40.78775861945306\n            ],\n            [\n              -122.20533281313979,\n              40.42429466387006\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"84","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Kistler, Ronald Wayne","contributorId":27857,"corporation":false,"usgs":true,"family":"Kistler","given":"Ronald","email":"","middleInitial":"Wayne","affiliations":[],"preferred":false,"id":867000,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterman, Zell E. 0000-0002-5694-8082 peterman@usgs.gov","orcid":"https://orcid.org/0000-0002-5694-8082","contributorId":167699,"corporation":false,"usgs":true,"family":"Peterman","given":"Zell","email":"peterman@usgs.gov","middleInitial":"E.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":867001,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70241580,"text":"70241580 - 1973 - Critically refracted waves in a spherically symmetric radially heterogeneous Earth model","interactions":[],"lastModifiedDate":"2023-03-23T18:08:46.234935","indexId":"70241580","displayToPublicDate":"1973-11-01T13:01:06","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1804,"text":"Geophysical Journal of the Royal Astronomical Society","active":true,"publicationSubtype":{"id":10}},"title":"Critically refracted waves in a spherically symmetric radially heterogeneous Earth model","docAbstract":"<p class=\"chapter-para\">A theoretical analysis of acoustic waves refracted by a spherical boundary across which velocity and density increase abruptly and below which velocity and density may either increase or decrease continuously with depth is formulated in terms of waves generated at a harmonic point source and scattered by a radially heterogeneous spherical body. Through the application of an Earth-flattening transformation on the radial solution and the Watson transform on the sum over eigenfunctions, the solution to the spherical problem for high frequencies is expressed as an integral for the corresponding half-space problem in which the effect of boundary curvature maps into an effective positive velocity gradient with depth. The results of both analytical and numerical evaluation of this integral can be summarized as follows for body waves in the crust and upper mantle:</p><p class=\"chapter-para\">(1) In the special case of a critical velocity gradient (a gradient equal and opposite to the effective curvature gradient), waves interacting with the boundary at the critical angle of incidence have the same form as the classical head wave for flat, homogeneous layers.</p><p class=\"chapter-para\">(2) For gradients more negative than critical, the amplitude of waves incident at the critical angle decay more rapidly with distance than the classical head wave.</p><p class=\"chapter-para\">(3) For gradients that are positive, null, and less negative than critical, the amplitude of waves near the critical angle decays less rapidly with distance than the classical head wave, and at sufficiently large distances, the refracted wave field can be adequately described in terms of ray-theoretical diving waves. At intermediate distances from the critical point, the spectral amplitude of the refracted wave is scalloped due to multiple diving wave interference.</p>","language":"English","publisher":"Oxford Academic Press","doi":"10.1111/j.1365-246X.1973.tb02390.x","usgsCitation":"Hill, D.P., 1973, Critically refracted waves in a spherically symmetric radially heterogeneous Earth model: Geophysical Journal of the Royal Astronomical Society, v. 34, no. 2, p. 149-177, https://doi.org/10.1111/j.1365-246X.1973.tb02390.x.","productDescription":"29 p.","startPage":"149","endPage":"177","costCenters":[],"links":[{"id":480657,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1111/j.1365-246x.1973.tb02390.x","text":"Publisher Index Page"},{"id":414636,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"34","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hill, David P. 0000-0002-1619-2006 dhill@usgs.gov","orcid":"https://orcid.org/0000-0002-1619-2006","contributorId":206752,"corporation":false,"usgs":true,"family":"Hill","given":"David","email":"dhill@usgs.gov","middleInitial":"P.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":867385,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70241232,"text":"70241232 - 1973 - Precambrian iron-formations of the United States","interactions":[],"lastModifiedDate":"2023-03-15T16:02:59.40784","indexId":"70241232","displayToPublicDate":"1973-11-01T10:53:46","publicationYear":"1973","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":"Precambrian iron-formations of the United States","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Society of Economic Geologists","doi":"10.2113/gsecongeo.68.7.934","usgsCitation":"Bayley, R.W., and James, H.L., 1973, Precambrian iron-formations of the United States: Economic Geology, v. 68, no. 7, p. 934-959, https://doi.org/10.2113/gsecongeo.68.7.934.","productDescription":"26 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W.","contributorId":74438,"corporation":false,"usgs":true,"family":"Bayley","given":"R.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":866605,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"James, H. L.","contributorId":96732,"corporation":false,"usgs":true,"family":"James","given":"H.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":866606,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70241534,"text":"70241534 - 1973 - Variations in lead-isotopic compositions in Mesozoic granitic rocks of California: A preliminary investigation","interactions":[],"lastModifiedDate":"2023-03-22T15:35:40.845284","indexId":"70241534","displayToPublicDate":"1973-11-01T10:28:01","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Variations in lead-isotopic compositions in Mesozoic granitic rocks of California: A preliminary investigation","docAbstract":"<p>Six alkali feldspar and two whole-rock samples of granitic rocks from the Sierra Nevada batholith and adjacent Klamath Mountains were analyzed for their lead-isotope compositions. The samples represented each of three<span>&nbsp;</span><sup>87</sup>Sr/<sup>86</sup>Sr groupings (&lt; 0.704, 0.704 to 0.706, and &gt; 0.706) for granitic rocks north of the Garlock fault in California. The isotopic compositions of lead in the samples from the Sierra Nevada batholith range from 18.73 to 19.37 for<span>&nbsp;</span><sup>206</sup>Pb/<sup>204</sup>Pb, 15.61 to 15.71 for<span>&nbsp;</span><sup>207</sup>Pb/<sup>204</sup>Pb, and 38.44 to 39.10 for<span>&nbsp;</span><sup>208</sup>Pb/<sup>204</sup>Pb. A crude parallel correspondence was found between lead and strontium isotopes, in that the specimens with the most radiogenic strontium also tend to have the most radiogenic lead similar to the previously studied Boulder batholith of Montana. A parallel correspondence is thought to imply characteristics of the source rocks for the plutons rather than consequences of partial melting or natural contamination. Lead-isotopic compositions for the Sierra Nevada batholith and the Boulder batholith differ, average values of<span>&nbsp;</span><sup>206</sup>Pb/<sup>204</sup>Pb being at least 18.8 for the Sierra Nevada batholith and about 18 for the Boulder batholith.</p><p>In the Late Cretaceous part of the Sierra Nevada batholith, the secondary isochron “age” for the lead data in these rocks is about 2,900 m.y., far older than known Precambrian in California. Sources are proposed for these plutons from the lower continental crust and upper continental mantle or dominantly recycled continental materials, probably of intermediate composition and possibly carried down to the zone of melting by subduction. This source material may have been formed in Pre-cambrian times but did not undergo a Precambrian metamorphism greater than upper amphibolite facies which would have reduced the values of<span>&nbsp;</span><sup>238</sup>U/<sup>204</sup>Pb in the source rocks and resulted in Mesozoic leads like those found in the Boulder batholith and elsewhere in the Rocky Mountain region.</p><p>A trondhjemite from the Klamath Mountains has a lead-isotope composition (<sup>206</sup>Pb/<sup>204</sup>Pb, 18.57;<span>&nbsp;</span><sup>207</sup>Pb/<sup>204</sup>Pb, 15.50;<span>&nbsp;</span><sup>208</sup>Pb/<sup>204</sup>Pb, 38.08) similar to that of oceanic volcanic rocks, particularly like those of island volcanics on oceanic ridges. Derivation of this trondhjemite from an oceanic mantle or recycled mantle material is indicated by this observation and supports the conclusion of Kistler and Peterman (1973) based on its alkali abundances and<span>&nbsp;</span><sup>87</sup>Sr/<sup>86</sup>Sr value.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1973)84<3513:VILCIM>2.0.CO;2","usgsCitation":"Doe, B.R., and Delevaux, M., 1973, Variations in lead-isotopic compositions in Mesozoic granitic rocks of California: A preliminary investigation: Geological Society of America Bulletin, v. 84, no. 11, p. 3513-3526, https://doi.org/10.1130/0016-7606(1973)84<3513:VILCIM>2.0.CO;2.","productDescription":"14 p.","startPage":"3513","endPage":"3526","costCenters":[],"links":[{"id":414552,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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 \"}}]}","volume":"84","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Doe, Bruce R.","contributorId":87554,"corporation":false,"usgs":true,"family":"Doe","given":"Bruce","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":867140,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Delevaux, Maryse","contributorId":104577,"corporation":false,"usgs":true,"family":"Delevaux","given":"Maryse","affiliations":[],"preferred":false,"id":867141,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70241824,"text":"70241824 - 1973 - Nodal tidal cycle of 18.6 yr.: Its importance in sea-level curves of the east coast of the United States and its value in explaining long-term sea-level changes","interactions":[],"lastModifiedDate":"2023-03-28T15:35:45.931617","indexId":"70241824","displayToPublicDate":"1973-11-01T10:18:44","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Nodal tidal cycle of 18.6 yr.: Its importance in sea-level curves of the east coast of the United States and its value in explaining long-term sea-level changes","docAbstract":"<p><span>The 18.6-yr cycle of the Moon's nodes dominates the annual means of high water, low water, and range at Boston and at other East Coast harbors. The maxima and minima of the high-water and range curves agree closely with the 180° and 0° long. yr, respectively, of the Moon's ascending node, and are fairly well accounted for by tide-prediction equations. The curve of annual mean sea level also reflects the cycle, but more weakly. Recognition of the cyclical nature of tidal data both simplifies and clarifies assessments of longer term sea-level trends and points to the need to include only multiples of entire cycles in the computations of these trends. When the curves of mean high water and range are used, it is possible to recognize long-term sea-level trends rapidly and to determine whether these are attributable to tidal or nontidal causes. The data suggest that the secular sea-level rise during the 20th century is tidal in origin and may be caused by vertical movement of the oceanic floor. This has the effect of reducing the volume of ocean basins, and, by changing basin geometry, alters the characteristics of terrestrial tidal constituents (standing waves).</span></p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1973)1<141:NTCOYI>2.0.CO;2","usgsCitation":"Kaye, C., and Stuckey, G.W., 1973, Nodal tidal cycle of 18.6 yr.: Its importance in sea-level curves of the east coast of the United States and its value in explaining long-term sea-level changes: Geology, v. 1, no. 3, p. 141-144, https://doi.org/10.1130/0091-7613(1973)1<141:NTCOYI>2.0.CO;2.","productDescription":"4 p.","startPage":"141","endPage":"144","costCenters":[],"links":[{"id":414831,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Atlantic Ocean","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      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,{"id":70162008,"text":"70162008 - 1973 - Microprobe analyses of sericite, chlorite, and epidote from Jerome, Arizona","interactions":[],"lastModifiedDate":"2018-03-26T15:39:31","indexId":"70162008","displayToPublicDate":"1973-11-01T02:30:00","publicationYear":"1973","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":"Microprobe analyses of sericite, chlorite, and epidote from Jerome, Arizona","docAbstract":"<p>Volcanic rocks in the vicinity of the massive sulfide&nbsp;deposits at the United Verde mine, Jerome, Ariz., have been modified&nbsp;in several periods of hydrothermal alteration and greenschist metamorphism.&nbsp;Chlorite, 2M, mica (sericite), and epidote are characteristic&nbsp;alteration products. Microprobe analyses for sericite, chlorite, and&nbsp;epidote are recalculated to structural formulas by the method employing&nbsp;oxygen anion equivalents. The sericite has the general composition&nbsp;of muscovite, but is moderately phengitic, and two samples have 6-12&nbsp;percent paragonite in solid solution. Most of the chlorite is ripidolite&nbsp;with approximately one-third of the tetrahedral sites filled by aluminum;&nbsp;octahedral aluminum slightly exceeds tetrahedral. Fe:Fe+Mg+Mn&nbsp;ratios range from 0.34 to 0.66; low values are associated with sulfide&nbsp;minerals; higher values occur in a sample peripheral to the massive&nbsp;sulfide deposit. The epidote is a solid solution of 70 percent epidote, 30&nbsp;percent clinozoisite.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Nash, J.T., 1973, Microprobe analyses of sericite, chlorite, and epidote from Jerome, Arizona: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 673-678.","productDescription":"6 p.","startPage":"673","endPage":"678","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314178,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314177,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States","state":"Arizona","city":"Jerome","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -112.12320327758789,\n              34.75014614974241\n            ],\n            [\n              -112.11599349975586,\n              34.75458894128617\n            ],\n            [\n              -112.11221694946289,\n              34.75127450039575\n            ],\n            [\n              -112.10294723510741,\n              34.75331959666246\n            ],\n            [\n              -112.09865570068358,\n              34.74471574661928\n            ],\n            [\n              -112.11685180664062,\n              34.73886179538729\n            ],\n            [\n              -112.12320327758789,\n              34.75014614974241\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5694e049e4b039675d005e39","contributors":{"authors":[{"text":"Nash, J. Thomas","contributorId":26306,"corporation":false,"usgs":true,"family":"Nash","given":"J.","email":"","middleInitial":"Thomas","affiliations":[],"preferred":false,"id":588322,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70162063,"text":"70162063 - 1973 - Flow characteristics of a subsurface-controlled recharge basin on Long Island, New York","interactions":[],"lastModifiedDate":"2018-03-26T15:38:35","indexId":"70162063","displayToPublicDate":"1973-11-01T02:30:00","publicationYear":"1973","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":"Flow characteristics of a subsurface-controlled recharge basin on Long Island, New York","docAbstract":"<p>Ponding studies at the Woodbury recharge basin on Long&nbsp;Island, N.Y., show that the principal zones controlling infiltration are a&nbsp;surface-loam stratum and an intermediate gravelly, sandy loam stratum.&nbsp;The saturated hydraulic conductivities of these strata are 0.90 and 0.1&nbsp;ft per day, respectively. The surface loam acts as the principal zone&nbsp;controlling infiltration until a perched ground-water mound develops&nbsp;above the intermediate gravelly, sandy loam and extends to the bottom&nbsp;of the surface loam; then the intermediate gravelly, sandy loam&nbsp;becomes the principal infiltration controlling zone. Infiltration rates at&nbsp;15.6&deg; Celsius are 1.4 ft per day when the surface loam is acting as the&nbsp;principal controlling zone and 0.5 ft per day when the intermediate&nbsp;gravelly, sandy loam is acting as the principal controlling zone.&nbsp;Projections of the probable infiltration rates associated with both the&nbsp;partial and the complete removal of the surface-loam stratum show that&nbsp;if recharge continues for several days total infiltration would not be&nbsp;greatly different whether or not the loam stratum is completely&nbsp;removed. The principal advantage of completely removing the surface-loam&nbsp;stratum is the resulting greater infiltration capacity during the&nbsp;early stages of ponding. This advantage is offset by potential problems&nbsp;associated with more intensive clogging of the subsurface controlling zone.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Prill, R.C., and Aaronson, D.B., 1973, Flow characteristics of a subsurface-controlled recharge basin on Long Island, New York: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 735-744.","productDescription":"10 p.","startPage":"735","endPage":"744","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314239,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314238,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States ","state":"New York","otherGeospatial":"Long Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -72.18017578125,\n              41.20758898181025\n            ],\n            [\n              -71.8011474609375,\n              41.075210270566636\n            ],\n            [\n              -72.520751953125,\n              40.81380923056961\n            ],\n            [\n              -73.3447265625,\n              40.57641252104445\n            ],\n            [\n              -74.091796875,\n              40.54720023441049\n            ],\n            [\n              -74.06982421875,\n              40.68896903762434\n            ],\n            [\n              -73.9105224609375,\n              40.80965166748856\n            ],\n            [\n              -73.6907958984375,\n              40.925964939514294\n            ],\n            [\n              -73.3612060546875,\n              41.008920735004885\n            ],\n            [\n              -73.2952880859375,\n              40.98819156349393\n            ],\n            [\n              -73.0645751953125,\n              41.025499378313754\n            ],\n            [\n              -72.762451171875,\n              41.01721057822846\n            ],\n            [\n              -72.18017578125,\n              41.20758898181025\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"569631c8e4b039675d00a3db","contributors":{"authors":[{"text":"Prill, Robert C.","contributorId":86317,"corporation":false,"usgs":true,"family":"Prill","given":"Robert","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":588439,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aaronson, Donald B.","contributorId":14023,"corporation":false,"usgs":true,"family":"Aaronson","given":"Donald","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":588440,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70162053,"text":"70162053 - 1973 - Problems of underground storage of wastes","interactions":[],"lastModifiedDate":"2016-01-12T14:35:50","indexId":"70162053","displayToPublicDate":"1973-11-01T02:30:00","publicationYear":"1973","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":"Problems of underground storage of wastes","docAbstract":"<p>Problems of underground storage of waste involve geology&nbsp;in its broadest sense, including hydrology, geochemistry, and geophysics.&nbsp;Wastes may be solid, liquid, or gaseous, and they may be&nbsp;chemically toxic or noxious, esthetically offensive, or radioactive. Some&nbsp;wastes require only temporary containment, whereas others must be&nbsp;isolated for indefinitely long periods. The means and locale for&nbsp;emplacement underground depend upon many governing geological&nbsp;factors, including the physical, chemical, hydrological, and hydraulic&nbsp;properties of the host formation. These must be studied relative to the&nbsp;physical, chemical, and thermal properties of the waste and of potential&nbsp;interactions between the waste and the host formation. Thorough&nbsp;knowledge is essential because lack of it may lead to undesirable or&nbsp;disastrous environmental consequences. Escape of waste may contaminate&nbsp;the surface or near-surface environment; it may destroy the&nbsp;usefulness or accessibility of resources such as ground water, petroleum,&nbsp;and minerals. Effective management of underground waste requires&nbsp;adaptation of current technology and development of new technology.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Nace, R.L., 1973, Problems of underground storage of wastes: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 719-723.","productDescription":"5 p.","startPage":"719","endPage":"723","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314233,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314232,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"569631cbe4b039675d00a3eb","contributors":{"authors":[{"text":"Nace, Raymond L.","contributorId":93460,"corporation":false,"usgs":true,"family":"Nace","given":"Raymond","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":588413,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70162050,"text":"70162050 - 1973 - Determination of the association and dissociation of humic acid fractions by small angle X-ray scattering","interactions":[],"lastModifiedDate":"2016-01-12T14:21:33","indexId":"70162050","displayToPublicDate":"1973-11-01T02:30:00","publicationYear":"1973","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":"Determination of the association and dissociation of humic acid fractions by small angle X-ray scattering","docAbstract":"<p>A procedure has been devised for the fractionation of&nbsp;humic acid samples from different environments. This procedure&nbsp;involves fractionation of the sample by adsorption chromatography on&nbsp;a Sephadex G-50 column followed by chromatography on either a G-25&nbsp;or a G-100 column. The fractions of the solutions are then examined by&nbsp;small angle X-ray scattering. Three different types of behavior have&nbsp;been detected among the humic acid fractions: (1) Some fractions show&nbsp;very little change in aggregation at pH values above 3.5. (2) One&nbsp;fraction forms aggregates at pH values above and below pH 7, but at pH&nbsp;7 it is completely dissociated. (3) In some fractions the degree of&nbsp;aggregation decreases with increasing pH. However, even at pH values as&nbsp;high as 11.5 some large particles are still present. These differences in<br />association behavior are due to the interaction of different attractive&nbsp;and repulsive forces. In many aggregating systems only one type of<br />attractive force is dominant; however in humic acid systems hydrogen&nbsp;bonding, &pi;&nbsp;bonding between planar aromatic moieties, and other<br />coulombic interactions apparently all play a role in the formation of&nbsp;molecular aggregates.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Pinckney, D., and Wershaw, R., 1973, Determination of the association and dissociation of humic acid fractions by small angle X-ray scattering: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 701-707.","productDescription":"7 p.","startPage":"701","endPage":"707","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314229,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314228,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"569631c4e4b039675d00a3cd","contributors":{"authors":[{"text":"Pinckney, D.J.","contributorId":23175,"corporation":false,"usgs":true,"family":"Pinckney","given":"D.J.","affiliations":[],"preferred":false,"id":588409,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wershaw, R.L.","contributorId":62223,"corporation":false,"usgs":true,"family":"Wershaw","given":"R.L.","affiliations":[],"preferred":false,"id":588410,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70162001,"text":"70162001 - 1973 - Loss of volatiles during fountaining and flowage of basaltic lava at Kilauea Volcano, Hawaii","interactions":[],"lastModifiedDate":"2016-01-11T14:07:42","indexId":"70162001","displayToPublicDate":"1973-11-01T02:30:00","publicationYear":"1973","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":"Loss of volatiles during fountaining and flowage of basaltic lava at Kilauea Volcano, Hawaii","docAbstract":"<p>The amount of water and sulfur in pumice erupted during&nbsp;periods of vigorous activity during the 1969-71 Mauna Ulu eruption&nbsp;varied inversely with fountain height because of degassing during the&nbsp;fountaining. The pumice lost about 0.05 wt percent water and 0.003 wt&nbsp;percent sulfur during fountaining to heights of 400-540 m. Analyses&nbsp;suggest that the initial volatile content of Mauna Ulu lava was greater&nbsp;immediately preceding periods of high fountaining than during weak&nbsp;activity between those periods or after the last high fountains on&nbsp;December 30, 1969. Water and sulfur were systematically depleted&nbsp;during nearly isothermal flowage in lava tubes. Rapidly quenched&nbsp;samples of dipped melt show losses of about 0.03-0.04 wt percent&nbsp;water and 0.007-0.008 wt percent sulfur during flowage for several&nbsp;hours through a distance of 12 km. Glassy skins on cooled pahoehoe&nbsp;flows contain about 0.002-0.003 wt percent less sulfur than quenched&nbsp;melt at comparable distances from the vent, because of continued&nbsp;degassing under natural cooling conditions. Chlorine shows similar but&nbsp;less well defined trends. Pumice erupted in high fountains becomes&nbsp;more strongly oxidized than the parent magma, because of mixing with&nbsp;air while still at high temperatures.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Swanson, D., and Fabbi, B.P., 1973, Loss of volatiles during fountaining and flowage of basaltic lava at Kilauea Volcano, Hawaii: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 649-658.","productDescription":"10 p.","startPage":"649","endPage":"658","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314168,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}},{"id":314169,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States of America","state":"Hawaii","otherGeospatial":"Kilauea Volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -155.01022338867188,\n              19.33706180106996\n            ],\n            [\n              -155.04318237304688,\n              19.41997316110168\n            ],\n            [\n              -155.12969970703125,\n              19.462707821188026\n            ],\n            [\n              -155.2752685546875,\n              19.44328437042322\n            ],\n            [\n              -155.30410766601562,\n              19.47177130210513\n            ],\n            [\n              -155.32745361328125,\n              19.456233596018\n            ],\n            [\n              -155.44418334960938,\n              19.232066735684665\n            ],\n            [\n              -155.44692993164062,\n              19.198350361162994\n            ],\n            [\n              -155.39337158203125,\n              19.19056867766461\n            ],\n            [\n              -155.32058715820312,\n              19.228176737766262\n            ],\n            [\n              -155.29998779296875,\n              19.257997699830604\n            ],\n            [\n              -155.25466918945312,\n              19.268368937880687\n            ],\n            [\n              -155.17501831054688,\n              19.250218840825692\n            ],\n            [\n              -155.01022338867188,\n              19.33706180106996\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5694e048e4b039675d005e34","contributors":{"authors":[{"text":"Swanson, Donald A. 0000-0002-1680-3591","orcid":"https://orcid.org/0000-0002-1680-3591","contributorId":22303,"corporation":false,"usgs":true,"family":"Swanson","given":"Donald A.","affiliations":[],"preferred":false,"id":588303,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fabbi, Brent P.","contributorId":64244,"corporation":false,"usgs":true,"family":"Fabbi","given":"Brent","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":588304,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70162003,"text":"70162003 - 1973 - Radioelement distribution in the basement complex of the Yukon-Tanana upland, Eielson deep test hole, Alaska","interactions":[],"lastModifiedDate":"2016-01-11T14:19:36","indexId":"70162003","displayToPublicDate":"1973-11-01T01:15:00","publicationYear":"1973","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":"Radioelement distribution in the basement complex of the Yukon-Tanana upland, Eielson deep test hole, Alaska","docAbstract":"<p>Uranium, thorium, and potassium contents were determined&nbsp;in 94 samples of drill cuttings from a 9,774-foot-deep exploratory&nbsp;hole drilled entirely in crystalline schists of the basement complex&nbsp;of the Yukon-Tanana Upland. The data indicate two distinctively&nbsp;different rock types and reflect differences in the calcite content of the&nbsp;rock. Zones of anomalously high concentrations of the radioelements&nbsp;probably reflect the effects of the emplacement of the nearby Eielson&nbsp;pluton.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Bunker, C.M., Bush, C.A., and Forbes, R.B., 1973, Radioelement distribution in the basement complex of the Yukon-Tanana upland, Eielson deep test hole, Alaska: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 659-663.","productDescription":"5 p.","startPage":"659","endPage":"663","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314174,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314173,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States of America","state":"Alaska","otherGeospatial":"Eielson deep test hole","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -146.8817138671875,\n              64.81915426595167\n            ],\n            [\n              -146.95037841796875,\n              64.79811112776754\n            ],\n            [\n              -146.96823120117185,\n              64.77529584748463\n            ],\n            [\n              -146.9970703125,\n              64.75480416274713\n            ],\n            [\n              -147.04925537109375,\n              64.75070395955947\n            ],\n            [\n              -147.07260131835938,\n              64.7266759855353\n            ],\n            [\n              -147.01629638671875,\n              64.72022582210509\n            ],\n            [\n              -146.94488525390625,\n              64.7213986934753\n            ],\n            [\n              -146.9146728515625,\n              64.71318752617226\n            ],\n            [\n              -146.8707275390625,\n              64.70321347316407\n            ],\n            [\n              -146.8048095703125,\n              64.71025436259812\n            ],\n            [\n              -146.76910400390625,\n              64.70614739960975\n            ],\n            [\n              -146.70867919921875,\n              64.71318752617226\n            ],\n            [\n              -146.66336059570312,\n              64.74601725111455\n            ],\n            [\n              -146.63589477539062,\n              64.78173288025181\n            ],\n            [\n              -146.67160034179685,\n              64.80337345274579\n            ],\n            [\n              -146.71279907226562,\n              64.80980378851918\n            ],\n            [\n              -146.8817138671875,\n              64.81915426595167\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5694e04fe4b039675d005e59","contributors":{"authors":[{"text":"Bunker, C. M.","contributorId":75138,"corporation":false,"usgs":true,"family":"Bunker","given":"C.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":588317,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bush, C. A.","contributorId":43344,"corporation":false,"usgs":true,"family":"Bush","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":588318,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Forbes, R. B.","contributorId":12848,"corporation":false,"usgs":true,"family":"Forbes","given":"R.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":588319,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70161990,"text":"70161990 - 1973 - Revised volcanic history of the San Juan, Uncompahgre, Silverton, and Lake City calderas in the western San Juan Mountains, Colorado","interactions":[],"lastModifiedDate":"2016-01-11T13:17:56","indexId":"70161990","displayToPublicDate":"1973-11-01T01:15:00","publicationYear":"1973","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":"Revised volcanic history of the San Juan, Uncompahgre, Silverton, and Lake City calderas in the western San Juan Mountains, Colorado","docAbstract":"<p>The sequence of mid-Cenozoic volcanic events in the&nbsp;western San Juan Mountains is closely analogous to that elsewhere in&nbsp;the San Juan volcanic field. The Lake Fork, Picayune, and San Juan&nbsp;Formations were erupted from a cluster of central volcanoes from 35 to&nbsp;30 m.y. ago, when dominant activity shifted to more silicic ash-flow&nbsp;eruptions with accompanying caldera collapses. The Uncompahgre and&nbsp;San Juan calderas, each about 20 km across, formed mainly from&nbsp;eruption of the 28-m.y.-old Sapinero Mesa Tuff. Collapse occurred&nbsp;concurrently with eruption, and intracaldera tuffs accumulated to a&nbsp;thickness of more than 700 m. Both calderas were resurgently domed&nbsp;together; the northeast-trending Eureka graben formed along the&nbsp;distended crest of that dome. The Uncompahgre caldera was then&nbsp;flooded by several 27- to 28-m.y.-old ash-flow sheets from easterly&nbsp;sources, and also by one apparently erupted from the Silverton caldera&nbsp;nested within the older San Juan caldera. The Lake City caldera,&nbsp;located within the older Uncompahgre caldera, formed about 22.5 m.y.&nbsp;ago in response to eruption of the Sunshine Peak Tuff.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Lipman, P.W., Steven, T., Luedke, R.G., and Burbank, W., 1973, Revised volcanic history of the San Juan, Uncompahgre, Silverton, and Lake City calderas in the western San Juan Mountains, Colorado: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 627-642.","productDescription":"16 p.","startPage":"627","endPage":"642","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314155,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314154,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United 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A.","contributorId":57529,"corporation":false,"usgs":true,"family":"Steven","given":"Thomas A.","affiliations":[],"preferred":false,"id":588265,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Luedke, Robert G.","contributorId":18339,"corporation":false,"usgs":true,"family":"Luedke","given":"Robert","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":588266,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Burbank, Wilbur","contributorId":6955,"corporation":false,"usgs":true,"family":"Burbank","given":"Wilbur","affiliations":[],"preferred":false,"id":588267,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70161993,"text":"70161993 - 1973 - Sr87/Sr86, K, Na, Rb, and Sr in some eclogites and associated basalts from California and southwestern Oregon","interactions":[],"lastModifiedDate":"2016-01-11T13:31:49","indexId":"70161993","displayToPublicDate":"1973-11-01T01:15:00","publicationYear":"1973","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":"Sr87/Sr86, K, Na, Rb, and Sr in some eclogites and associated basalts from California and southwestern Oregon","docAbstract":"<p>Six samples of group C eclogites from California and&nbsp;southwestern Oregon have initial Sr<sup>87</sup>/Sr<sup>86</sup> ratios in the range of&nbsp;0.7028 to 0.7051; Rb contents from less than 1 to 53.4 ppm; and Sr&nbsp;contents from 147 to 270 ppm. These data and major-element&nbsp;compositions suggest that the eclogites were derived from basalts older&nbsp;than but similar in composition to those intercalated with Mesozoic&nbsp;cugeosynclinal sedimentary rocks in California and western Oregon.&nbsp;The isotopic heterogeneity of the eclogites and associated graywackes&nbsp;contrasts with a uniformity of Sr<sup>87</sup>/Sr<sup>86</sup> in many younger calc-alkaline&nbsp;volcanic rocks of the circum-Pacific province. Derivation of the younger&nbsp;volcanic rocks from an eclogite-blueschist melange isotopically similar&nbsp;to those investigated here would require isotopic homogenization or&nbsp;integrated partial melting over sufficient volumes so as to reduce these&nbsp;variations in the derived melts.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Ghent, E.D., Peterman, Z.E., and Coleman, R.G., 1973, Sr87/Sr86, K, Na, Rb, and Sr in some eclogites and associated basalts from California and southwestern Oregon: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 643-647.","productDescription":"5 p.","startPage":"643","endPage":"647","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314161,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314160,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States of America","state":"California, Oregon","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -119.99267578124999,\n              42.00032514831621\n            ],\n            [\n              -119.94873046875,\n              43.58039085560786\n            ],\n            [\n              -124.38720703124999,\n              43.61221676817573\n            ],\n            [\n              -124.73876953125,\n              43.08493742707592\n            ],\n            [\n              -124.62890625,\n              42.68243539838623\n            ],\n            [\n              -124.62890625,\n              42.032974332441405\n            ],\n            [\n              -124.38720703124999,\n              41.36031866306708\n            ],\n            [\n              -124.365234375,\n              40.94671366508002\n            ],\n            [\n              -124.67285156250001,\n              40.245991504199026\n            ],\n            [\n              -124.23339843749999,\n              39.99395569397331\n            ],\n            [\n              -119.94873046875,\n              39.977120098439634\n            ],\n            [\n              -119.99267578124999,\n              42.00032514831621\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5694e052e4b039675d005e73","contributors":{"authors":[{"text":"Ghent, E. D.","contributorId":90037,"corporation":false,"usgs":true,"family":"Ghent","given":"E.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":588280,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterman, Z. E.","contributorId":63781,"corporation":false,"usgs":true,"family":"Peterman","given":"Z.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":588281,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Coleman, R. G.","contributorId":75170,"corporation":false,"usgs":true,"family":"Coleman","given":"R.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":588282,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70162052,"text":"70162052 - 1973 - Fluorescent spectroscopy, a technique for characterizing surface films","interactions":[],"lastModifiedDate":"2016-01-12T14:28:47","indexId":"70162052","displayToPublicDate":"1973-11-01T01:15:00","publicationYear":"1973","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":"Fluorescent spectroscopy, a technique for characterizing surface films","docAbstract":"<p>A relationship is established between fluorescent spectra&nbsp;obtained by using a light path through the liquid solution and the&nbsp;fluorescent spectra obtained by a direct reading of surface reflection&nbsp;(remote sensing). A brief review of quantum fundamentals provides the&nbsp;necessary information to conclude that \"see-through\" and reflectance&nbsp;spectra are identical in wavelength response. Many floating films&nbsp;contain fluorescent materials; thus fluorescent spectroscopic techniques&nbsp;were used to obtain the fluorescent spectra of lube oil, crude oil, and<br />lignosulfonie acid in an effort to detect, identify, and quantify these&nbsp;representative fluorescent materials in water solutions. For each&nbsp;material tested the emission maximum was established. The emission&nbsp;maximum was then held constant while the absorption spectrum was&nbsp;recorded and the absorption maximum established. The complete&nbsp;spectral curves are presented.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Goldberg, M.C., and Devonald, D.H., 1973, Fluorescent spectroscopy, a technique for characterizing surface films: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 709-717.","productDescription":"9 p.","startPage":"709","endPage":"717","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314231,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314230,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"569631c8e4b039675d00a3dd","contributors":{"authors":[{"text":"Goldberg, Marvin C.","contributorId":26066,"corporation":false,"usgs":true,"family":"Goldberg","given":"Marvin","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":588411,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Devonald, David H. III","contributorId":152189,"corporation":false,"usgs":false,"family":"Devonald","given":"David","suffix":"III","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":588412,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70162013,"text":"70162013 - 1973 - The Late Cretaceous ammonite Trachyscaphites pulcherrimus (Roemer) in New Jersey and Texas","interactions":[],"lastModifiedDate":"2016-01-11T15:00:38","indexId":"70162013","displayToPublicDate":"1973-11-01T01:15:00","publicationYear":"1973","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":"The Late Cretaceous ammonite Trachyscaphites pulcherrimus (Roemer) in New Jersey and Texas","docAbstract":"<p><i>Trachyscaphites pulcherrimus</i>, described originally by&nbsp;Ferdinand Roemer in 1841 from fragments of nodose ammonites from&nbsp;Germany, is characterized by having five rows of tubercles on each&nbsp;flank of the phragmocone and three to five rows on each side of the&nbsp;body chamber. Weak midventral tubercles are present on some&nbsp;specimens. Ribbing is dense and usually irregular. The species has been&nbsp;recorded from upper Campanian rocks in Germany, Austria, France,&nbsp;Poland, and Russia. Recently a few specimens have been found at the&nbsp;top of the Wenonah Formation of New Jersey and in the Taylor Marl of&nbsp;Texas.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Cobban, W.A., 1973, The Late Cretaceous ammonite Trachyscaphites pulcherrimus (Roemer) in New Jersey and Texas: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 695-700.","productDescription":"6 p.","startPage":"695","endPage":"700","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314187,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314186,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5694e065e4b039675d005e9a","contributors":{"authors":[{"text":"Cobban, W. A.","contributorId":21577,"corporation":false,"usgs":true,"family":"Cobban","given":"W.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":588327,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70162012,"text":"70162012 - 1973 - Early Pleistocene(?) pollen spectra from near Lake Tahoe, California","interactions":[],"lastModifiedDate":"2016-01-11T14:55:34","indexId":"70162012","displayToPublicDate":"1973-11-01T01:15:00","publicationYear":"1973","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":"Early Pleistocene(?) pollen spectra from near Lake Tahoe, California","docAbstract":"<p>Fossil pollen was recovered at Tahoe City, Calif., from&nbsp;beneath a 1.9-m.y.-old volcanic flow. Pollen counts of four fossil&nbsp;samples are compared with soil-surface pollen samples from the Sierra&nbsp;Nevada. The presence of <i>Picea</i> (spruce) pollen in the fossil samples&nbsp;suggests that summer drought conditions in the central Sierra Nevada&nbsp;were less severe prior to 1.9 m.y. ago than they are now.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Adam, D.P., 1973, Early Pleistocene(?) pollen spectra from near Lake Tahoe, California: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 691-693.","productDescription":"3 p.","startPage":"691","endPage":"693","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":314185,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":314184,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue6/report.pdf","text":"Report","size":"16.0 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States of America","state":"California","city":"Tahoe City","otherGeospatial":"Sierra Nevada","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -120.13541221618651,\n              39.173789839599976\n            ],\n            [\n              -120.14219284057617,\n              39.17811473039235\n            ],\n            [\n              -120.14794349670412,\n              39.18037687499038\n            ],\n            [\n              -120.15275001525879,\n              39.18190710800285\n            ],\n            [\n              -120.16356468200682,\n              39.18184057682537\n            ],\n            [\n              -120.16905784606934,\n              39.1795119459448\n            ],\n            [\n              -120.17412185668944,\n              39.17432214820718\n            ],\n            [\n              -120.17618179321288,\n              39.169331596820435\n            ],\n            [\n              -120.17755508422853,\n              39.166337095991636\n            ],\n            [\n              -120.17154693603514,\n              39.16513925996161\n            ],\n            [\n              -120.16777038574219,\n              39.16414104768742\n            ],\n            [\n              -120.15738487243652,\n              39.16367521044494\n            ],\n            [\n              -120.15094757080078,\n              39.16327591892457\n            ],\n            [\n              -120.14433860778809,\n              39.168133811788366\n            ],\n            [\n              -120.14202117919923,\n              39.168067267577364\n            ],\n            [\n              -120.13541221618651,\n              39.173789839599976\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"1","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5694e041e4b039675d005e0f","contributors":{"authors":[{"text":"Adam, David P.","contributorId":36132,"corporation":false,"usgs":true,"family":"Adam","given":"David","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":588326,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
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