On March 31, and May 4 and 5, 1973, the first Earth Resources Technology Satellite (ERTS-1) obtained multispectral scanner imagery over the Mississippi River below St. Louis, Missouri. The river was in flood, and the ERTS data provided the first opportunity for regional synoptic mapping of the extent of flooding at the time the imagery was obtained along a 1200 river-mile reach and some of its tributaries. The flood data were compared with imagery collected by ERTS on October 1 and 2, 1972, when the rivers were confined to their normal channels. The specially processed data were analyzed by additive-color techniques, and special enhancements were prepared to aid in interpretation of the data. The extent of flooding was delineated by additive-color, temporal composites of MSS band 7 infrared images. The temporal composites vividly depict, on a single scene, the flooded areas in relation to the normal channel. Color composites of the two near-infrared bands, which usually accentuate surface water, were enlarged to a scale of 1:250,000. Excellent registration was obtained between the image and transparencies of the 1:250,000 topographic maps used as overlays. The resulting image maps were then used as an interim product for preparation of maps showing the extent of flooding at the same scale.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Remote sensing and water resources management","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"American Water Resources Association","usgsCitation":"Deutsch, M., Ruggles, F.H., Guss, P., and Yost, E., 1973, Mapping of the 1973 Mississippi River floods from the Earth Resources Technology Satellite (ERTS), in Remote sensing and water resources management, p. 39-55.","productDescription":"17 p.","startPage":"39","endPage":"55","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":406303,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arkansas, Illinois, Kentucky, Missouri, Tennessee","otherGeospatial":"Mississippi River-Ohio River confluence","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -90.06591796875,\n 35.33529320309328\n ],\n [\n -88.65966796875,\n 35.33529320309328\n ],\n [\n -88.65966796875,\n 37.75334401310656\n ],\n [\n -90.06591796875,\n 37.75334401310656\n ],\n [\n -90.06591796875,\n 35.33529320309328\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Deutsch, Morris","contributorId":69119,"corporation":false,"usgs":true,"family":"Deutsch","given":"Morris","email":"","affiliations":[],"preferred":false,"id":851082,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ruggles, F. H.","contributorId":105805,"corporation":false,"usgs":true,"family":"Ruggles","given":"F.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":851083,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Guss, Philip","contributorId":296268,"corporation":false,"usgs":false,"family":"Guss","given":"Philip","email":"","affiliations":[],"preferred":false,"id":851084,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yost, Edward","contributorId":296269,"corporation":false,"usgs":false,"family":"Yost","given":"Edward","email":"","affiliations":[],"preferred":false,"id":851085,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70207302,"text":"70207302 - 1973 - Referees and the publications crisis","interactions":[],"lastModifiedDate":"2019-12-16T12:41:49","indexId":"70207302","displayToPublicDate":"1973-05-31T12:39:44","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3879,"text":"Eos, Earth and Space Science News","active":true,"publicationSubtype":{"id":10}},"title":"Referees and the publications crisis","docAbstract":"Routine refereeing by peers of manuscripts submitted to scholarly journals is a logical and effective device that can obviate ‘crankiness, irrelevance and gross incompetence’ [Ziman, 1970a] on the one hand and minimize editorial arbitrariness on the other. As reviewed by Zuckerman and Merton [1971], the device has historical roots that extend back to the beginning of the first scholarly journals, such as Transactions of the Royal Society, and Journal des Scavans. The growth of science since World War II and the pressure of burgeoning manuscript submission appear to have been important factors in making automatic peer review nearly universal in American and British Commonwealth natural science journals and in international journals influenced by Anglo‐North Americans. A 1962 survey cited by Zuckerman and Merton [1971] found that 71% of 156 physical and biological science journals in 13 countries made use of referees.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/EO054i005p00532","usgsCitation":"Manheim, F.T., 1973, Referees and the publications crisis: Eos, Earth and Space Science News, v. 54, no. 5, p. 532-537, https://doi.org/10.1029/EO054i005p00532.","productDescription":"6 p.","startPage":"532","endPage":"537","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":370313,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"5","noUsgsAuthors":false,"publicationDate":"2011-06-03","publicationStatus":"PW","contributors":{"authors":[{"text":"Manheim, Frank T. 0000-0003-4005-4524","orcid":"https://orcid.org/0000-0003-4005-4524","contributorId":20770,"corporation":false,"usgs":true,"family":"Manheim","given":"Frank","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":777632,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70011078,"text":"70011078 - 1973 - Fordilla troyensis Barrande: The oldest known pelecypod","interactions":[],"lastModifiedDate":"2026-01-26T14:29:10.492288","indexId":"70011078","displayToPublicDate":"1973-05-25T00:00:00","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}},"displayTitle":"Fordilla troyensis Barrande: The oldest known pelecypod","title":"Fordilla troyensis Barrande: The oldest known pelecypod","docAbstract":"Specimens of the small bivalved animal Fordilla troyensis Barrande from New York State show that this fossil is the oldest known pelecypod mollusk and not a conchostracan arthropod. This finding extends the range of the class Pelecypoda backward in time from the Early Ordovician (about 495 million years ago) to the Early Cambrian (about 540 to 570 million years ago). The morphology of Fordilla troyensis suggests that it lived infaunally and that it was ancestral to the pelecypod subclasses Heteroconchia and Isofilibranchia.
","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.180.4088.866","issn":"00368075","usgsCitation":"Pojeta, J., Runnegar, B., and Kriz, J., 1973, Fordilla troyensis Barrande: The oldest known pelecypod: Science, v. 180, no. 4088, p. 866-868, https://doi.org/10.1126/science.180.4088.866.","productDescription":"3 p.","startPage":"866","endPage":"868","costCenters":[],"links":[{"id":221152,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New 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Jr.","contributorId":55150,"corporation":false,"usgs":true,"family":"Pojeta","given":"J.","suffix":"Jr.","affiliations":[],"preferred":false,"id":360236,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Runnegar, B.","contributorId":80010,"corporation":false,"usgs":true,"family":"Runnegar","given":"B.","affiliations":[],"preferred":false,"id":360237,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kriz, J.","contributorId":38280,"corporation":false,"usgs":true,"family":"Kriz","given":"J.","affiliations":[],"preferred":false,"id":360235,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70010158,"text":"70010158 - 1973 - Lonar Lake, India: An impact crater in basalt","interactions":[],"lastModifiedDate":"2026-01-23T21:13:17.239244","indexId":"70010158","displayToPublicDate":"1973-05-23T00:00:00","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":"Lonar Lake, India: An impact crater in basalt","docAbstract":"Discovery of shock-metamorphosed material establishes the impact origin of Lonar Crater. Coarse breccia with shatter coning and microbreccia with moderately shocked fragments containing maskelynite were found in drill holes through the crater floor. Trenches on the rim yield strongly shocked fragments in which plagioclase has melted and vesiculated, and bombs and spherules of homogeneous rock melt. As the only known terrestrial impact crater in basalt, Lonar Crater provides unique opportunities for comparison with lunar craters. In particular, microbreccias and glass spherules from Lonar Crater have close analogs among the Apollo specimens.
","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.180.4088.862","issn":"00368075","usgsCitation":"Fredriksson, K., Dube, A., Milton, D., and Balasundaram, M., 1973, Lonar Lake, India: An impact crater in basalt: Science, v. 180, no. 4088, p. 862-864, https://doi.org/10.1126/science.180.4088.862.","productDescription":"3 p.","startPage":"862","endPage":"864","costCenters":[],"links":[{"id":219509,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"India","otherGeospatial":"Lonar Lake","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 76.49381373435432,\n 19.98754757916558\n ],\n [\n 76.49381373435432,\n 19.969004842797304\n ],\n [\n 76.51625924199948,\n 19.969004842797304\n ],\n [\n 76.51625924199948,\n 19.98754757916558\n ],\n [\n 76.49381373435432,\n 19.98754757916558\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"180","issue":"4088","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a495ce4b0c8380cd68545","contributors":{"authors":[{"text":"Fredriksson, K.","contributorId":11328,"corporation":false,"usgs":true,"family":"Fredriksson","given":"K.","email":"","affiliations":[],"preferred":false,"id":358154,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dube, A.","contributorId":8615,"corporation":false,"usgs":true,"family":"Dube","given":"A.","email":"","affiliations":[],"preferred":false,"id":358153,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Milton, D.J.","contributorId":44121,"corporation":false,"usgs":true,"family":"Milton","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":358155,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Balasundaram, M.S.","contributorId":50655,"corporation":false,"usgs":true,"family":"Balasundaram","given":"M.S.","email":"","affiliations":[],"preferred":false,"id":358156,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70010935,"text":"70010935 - 1973 - Obsidian hydration dates glacial loading?","interactions":[],"lastModifiedDate":"2026-01-23T21:27:50.072969","indexId":"70010935","displayToPublicDate":"1973-05-18T00:00:00","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":"Obsidian hydration dates glacial loading?","docAbstract":"Three different groups of hydration rinds have been measured on thin sections of obsidian from Obsidian Cliff, Yellowstone National Park, Wyoming . The average thickness of the thickest (oldest) group of hydration rinds is 16.3 micrometers and can be related to the original emplacement of the flow 176,000 years ago (potassium-argon age). In addition to these original surfaces, most thin sections show cracks and surfaces which have average hydration rind thicknesses of 14.5 and 7.9 micrometers. These later two hydration rinds compare closely in thickness with those on obsidian pebbles in the Bull Lake and Pinedale terminal moraines in the West Yellowstone Basin, which are 14 to 15 and 7 to 8 micrometers thick, respectively. The later cracks are thought to have been formed by glacial loading during the Bull Lake and Pinedale glaciations, when an estimated 800 meters of ice covered the Obsidian Cliff flow.","language":"English","publisher":"American Association for the Advancement of Science","doi":"10.1126/science.180.4087.733","issn":"00368075","usgsCitation":"Friedman, I., Pierce, K.L., Obradovich, J.D., and Long, W., 1973, Obsidian hydration dates glacial loading?: Science, v. 180, no. 4087, p. 733-734, https://doi.org/10.1126/science.180.4087.733.","productDescription":"2 p.","startPage":"733","endPage":"734","costCenters":[],"links":[{"id":220737,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wyoming","otherGeospatial":"Yellowstone National Park","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -111.04002719673802,\n 44.99654497165565\n ],\n [\n -111.04002719673802,\n 44.07006559240526\n ],\n [\n -109.1171570760447,\n 44.07006559240526\n ],\n [\n -109.1171570760447,\n 44.99654497165565\n ],\n [\n -111.04002719673802,\n 44.99654497165565\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"180","issue":"4087","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6afee4b0c8380cd74470","contributors":{"authors":[{"text":"Friedman, I.","contributorId":95596,"corporation":false,"usgs":true,"family":"Friedman","given":"I.","email":"","affiliations":[],"preferred":false,"id":359932,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pierce, K. 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","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"St. Paul, MN","doi":"10.3133/70175765","usgsCitation":"Saboe, C., 1973, Flooded area of Stillwater, Minnesota: Open-File Report, 6 p., https://doi.org/10.3133/70175765.","productDescription":"6 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"links":[{"id":326890,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57b82db7e4b03fd6b7da36ac","contributors":{"authors":[{"text":"Saboe, C.W.","contributorId":51837,"corporation":false,"usgs":true,"family":"Saboe","given":"C.W.","email":"","affiliations":[],"preferred":false,"id":646323,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70241912,"text":"70241912 - 1973 - Isotopic and paleontologic evidence for correlating three volcanic sequences in the Maine coastal volcanic belt","interactions":[],"lastModifiedDate":"2023-03-30T15:34:21.007078","indexId":"70241912","displayToPublicDate":"1973-05-05T10:23:09","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":"Isotopic and paleontologic evidence for correlating three volcanic sequences in the Maine coastal volcanic belt","docAbstract":"The correlation of the Castine Volcanics, the Thorofare Andesite–Vinalhaven Rhyolite sequence, and the Cranberry Island Series of Shaler (1889), suggested by their similar lithologies, appearance, and structural histories, is supported by the results of Rb-Sr whole-rock isotopic analyses and by the faunal assemblages from old and new fossil localities in the Castine Volcanics, Ames Knob Formation, and Thorofare Andesite. The volcanic rocks are partly Late Silurian, but mostly Early Devonian in age and yield an average radiogenic age of 390 ± 5 m.y. The use of calcite-bearing volcanic samples for whole-rock Rb-Sr dating degrades the method by greatly increasing the uncertainty of the isochron and initial Sr87/Sr86. Lower to Middle Devonian granitic plutons have initial ratios of Sr87 and Sr86 similar to those in the volcanic formations. The Castine Volcanics and the Lower Devonian granite of Sedgwick may be comagmatic, but the time interval between the extrusion of the Vinalhaven Rhyolite and its intrusion by the Middle Devonian granite of Vinalhaven Island is too long to support the comagmatic hypothesis.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1973)84<1619:IAPEFC>2.0.CO;2","usgsCitation":"Brookins, D.G., Berdan, J.M., and Stewart, D.B., 1973, Isotopic and paleontologic evidence for correlating three volcanic sequences in the Maine coastal volcanic belt: Geological Society of America Bulletin, v. 84, no. 5, p. 1619-1628, https://doi.org/10.1130/0016-7606(1973)84<1619:IAPEFC>2.0.CO;2.","productDescription":"10 p.","startPage":"1619","endPage":"1628","costCenters":[],"links":[{"id":414975,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maine","otherGeospatial":"Frenchman's Bay, Penobscot Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -69.31368123919768,\n 44.64179625358878\n ],\n [\n -69.31368123919768,\n 43.879945641513245\n ],\n [\n -68.18914846420707,\n 43.879945641513245\n ],\n [\n -68.18914846420707,\n 44.64179625358878\n ],\n [\n -69.31368123919768,\n 44.64179625358878\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"84","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Brookins, Douglas G.","contributorId":87144,"corporation":false,"usgs":true,"family":"Brookins","given":"Douglas","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":868207,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Berdan, Jean M.","contributorId":34140,"corporation":false,"usgs":true,"family":"Berdan","given":"Jean","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":868208,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stewart, David B.","contributorId":79864,"corporation":false,"usgs":true,"family":"Stewart","given":"David","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":868209,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70241804,"text":"70241804 - 1973 - Staurolite zone Caradoc (Middle-Late Ordovician) age, Old World province brachiopods from Penobscot Bay, Maine: Discussion","interactions":[],"lastModifiedDate":"2023-03-28T00:49:05.250334","indexId":"70241804","displayToPublicDate":"1973-05-01T19:33:56","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":"Staurolite zone Caradoc (Middle-Late Ordovician) age, Old World province brachiopods from Penobscot Bay, Maine: Discussion","docAbstract":"No abstract available.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1973)84<1829:SZCMOA>2.0.CO;2","usgsCitation":"Neuman, R.B., 1973, Staurolite zone Caradoc (Middle-Late Ordovician) age, Old World province brachiopods from Penobscot Bay, Maine: Discussion: Geological Society of America Bulletin, v. 84, no. 5, p. 1829-1830, https://doi.org/10.1130/0016-7606(1973)84<1829:SZCMOA>2.0.CO;2.","productDescription":"2 p.","startPage":"1829","endPage":"1830","costCenters":[],"links":[{"id":414791,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maine","otherGeospatial":"Penobscot Bay","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -69.1060381824102,\n 44.11723791131311\n ],\n [\n -69.11646244657824,\n 44.10932766668245\n ],\n [\n -69.11121701965045,\n 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Article"},"seriesTitle":{"id":3369,"text":"Sedimentology","active":true,"publicationSubtype":{"id":10}},"title":"Pebble segregation and bed lenticularity in wave-worked versus alluvial gravel","docAbstract":"Two aspects of bedding may permit visual discrimination between wave-worked and alluvial gravel. Pebbles in gravel worked by waves tend to be better segregated into discrete beds than those in alluvial deposits, and bedding in wave-worked gravel tends to be more laterally regular, or less lenticular, than that in stream gravel.
Pebble segregation and lenticularity were quantitatively analysed in twenty-five different marine and fluvial deposits of Quaternary or Tertiary age in southwestern Oregon in order to evaluate their use as environmental indicators. The results indicate that these two factors combined provide a visual criterion for discriminating between many gravels of wave-worked and alluvial origin.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1365-3091.1973.tb02043.x","usgsCitation":"Clifton, H.E., 1973, Pebble segregation and bed lenticularity in wave-worked versus alluvial gravel: Sedimentology, v. 20, no. 2, p. 173-187, https://doi.org/10.1111/j.1365-3091.1973.tb02043.x.","productDescription":"15 p.","startPage":"173","endPage":"187","costCenters":[],"links":[{"id":414637,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -124.65259638194547,\n 43.191877658066005\n ],\n [\n -124.65259638194547,\n 41.99658548725114\n ],\n [\n -123.672932078495,\n 41.99658548725114\n ],\n [\n -123.672932078495,\n 43.191877658066005\n ],\n [\n -124.65259638194547,\n 43.191877658066005\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"20","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-06-14","publicationStatus":"PW","contributors":{"authors":[{"text":"Clifton, H. Edward","contributorId":46503,"corporation":false,"usgs":true,"family":"Clifton","given":"H.","email":"","middleInitial":"Edward","affiliations":[],"preferred":false,"id":867386,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70241833,"text":"70241833 - 1973 - Petrology of the Vulcan Peak alpine-type peridotite, southwestern Oregon","interactions":[],"lastModifiedDate":"2023-03-28T18:11:18.553684","indexId":"70241833","displayToPublicDate":"1973-05-01T12:52:26","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":"Petrology of the Vulcan Peak alpine-type peridotite, southwestern Oregon","docAbstract":"The alpine-type peridotite in the area of Vulcan Peak, Oregon, is part of the larger Josephine ultramafic complex in the Klamath Mountains geologic province. Partially serpentinized, foliated harzburgite with 15 to 30 percent orthopyroxene makes up approximately 90 percent of the body. The remaining 10 percent is dunite that occurs in the harzburgite as concordant and discordant layers and as irregular bodies. In general, the peridotite at Vulcan Peak is similar in structure, texture, mineralogy, and chemistry to the peridotite at Burro Mountain, California. Structures, textures, and compositions of coexisting phases are consistent with high-temperature (1,000° to 1,200°C) deformation and recrystallization in the upper mantle, and tectonic emplacement into its present crustal position. Evidence to indicate whether the peridotite originated as a refractory residue during partial fusion processes that produced mafic melt or by crystallization from an ultramafic or picritic magma remains inconclusive; poikilitic clinopyroxene enclosing olivine in some dunites, and certain chromitite textures, may represent relict igneous features suggesting a magmatic stage in the history of the peridotite.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1973)84<1585:POTVPA>2.0.CO;2","usgsCitation":"Himmelberg, G.R., and Loney, R.A., 1973, Petrology of the Vulcan Peak alpine-type peridotite, southwestern Oregon: Geological Society of America Bulletin, v. 84, no. 5, p. 1585-1600, https://doi.org/10.1130/0016-7606(1973)84<1585:POTVPA>2.0.CO;2.","productDescription":"16 p.","startPage":"1585","endPage":"1600","costCenters":[],"links":[{"id":414840,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon","otherGeospatial":"Vulcan Peak","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -123.98819318698429,\n 42.178160201817605\n ],\n [\n -123.98374160769364,\n 42.17229070129619\n ],\n [\n -123.97501500124557,\n 42.17518357269242\n ],\n [\n -123.9768545429647,\n 42.179922806497785\n ],\n [\n -123.98018445047614,\n 42.18423151837007\n ],\n [\n -123.9778962400447,\n 42.187855215161846\n ],\n [\n -123.97892817808244,\n 42.189716850175586\n ],\n [\n -123.9847608713383,\n 42.19101331360267\n ],\n [\n -123.9873407164321,\n 42.19054791953448\n ],\n [\n -123.9932407099941,\n 42.18849981710764\n ],\n [\n -123.99400344680444,\n 42.18529172513081\n ],\n [\n -123.99288177502424,\n 42.18085331912857\n ],\n [\n -123.98819318698429,\n 42.178160201817605\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"84","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Himmelberg, Glen R.","contributorId":57921,"corporation":false,"usgs":true,"family":"Himmelberg","given":"Glen","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":867873,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Loney, Robert Ahlberg","contributorId":72802,"corporation":false,"usgs":true,"family":"Loney","given":"Robert","email":"","middleInitial":"Ahlberg","affiliations":[],"preferred":false,"id":867874,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":5221226,"text":"5221226 - 1973 - Territorial behavior, pesticides, and the population ecology of red-shouldered hawks in central Maryland, 1943-1971","interactions":[],"lastModifiedDate":"2023-12-18T17:53:44.711994","indexId":"5221226","displayToPublicDate":"1973-05-01T12:17:55","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1465,"text":"Ecology","active":true,"publicationSubtype":{"id":10}},"title":"Territorial behavior, pesticides, and the population ecology of red-shouldered hawks in central Maryland, 1943-1971","docAbstract":"A breeding population of red—shouldered hawks (Buteo lineatus) along the Patuxent River in central Maryland was studied during the interval 1943—71. Numbers of breeding pairs remained unchanged or increased on the PWRC (Patuxent Wildlife Research Center) and an adjoining area where habibat was not altered. A reduction in breeding pairs occurred on the third study area where large portions of the habitat had been destroyed. Basic information on 74 nests was obtained and the annual number of breeding pairs on the PWRC ranged from a low of four to a high of nine during the study. Nesting success of this highly territorial species decreased significantly as the distance between adjacent nest sites decreased (Errington's principle of inversity). Since 1960, the recruitment rate during “high” density years was 1.34 young fledged per pair as opposed to 1.95 during “optimum” (1943 and 1947 levels) density years. The 1.95 figure compared favorably with the estimated recruitment rate necessary for maintaining a stable population and with recruitment rates observed in other locations prior to the modern pesticide era. As the observed recruitment rate during the 4 years of “optimum” density was believed adequate, it is doubtful that the relatively low pesticide levels in the eggs had a detrimental effect on the reproductive performance of the population.
","language":"English","publisher":"Ecological Society of America","doi":"10.2307/1935339","usgsCitation":"Henny, C.J., Schmid, F.C., Martin, E.M., and Hood, L.L., 1973, Territorial behavior, pesticides, and the population ecology of red-shouldered hawks in central Maryland, 1943-1971: Ecology, v. 54, no. 3, p. 545-554, https://doi.org/10.2307/1935339.","productDescription":"10 p.","startPage":"545","endPage":"554","numberOfPages":"10","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":193457,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"3","noUsgsAuthors":false,"publicationDate":"1973-05-01","publicationStatus":"PW","scienceBaseUri":"4f4e4ad9e4b07f02db6850da","contributors":{"authors":[{"text":"Henny, Charles J. 0000-0001-7474-350X hennyc@usgs.gov","orcid":"https://orcid.org/0000-0001-7474-350X","contributorId":3461,"corporation":false,"usgs":true,"family":"Henny","given":"Charles","email":"hennyc@usgs.gov","middleInitial":"J.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":333338,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schmid, F. C.","contributorId":39885,"corporation":false,"usgs":true,"family":"Schmid","given":"F.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":333340,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Martin, Elwood M.","contributorId":107342,"corporation":false,"usgs":true,"family":"Martin","given":"Elwood","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":333341,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hood, L. L.","contributorId":31072,"corporation":false,"usgs":true,"family":"Hood","given":"L.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":333339,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70233752,"text":"70233752 - 1973 - Energy and plane waves in linear viscoelastic media","interactions":[],"lastModifiedDate":"2022-07-27T17:13:31.404082","indexId":"70233752","displayToPublicDate":"1973-05-01T12:10:37","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2312,"text":"Journal of Geophysical Research","active":true,"publicationSubtype":{"id":10}},"title":"Energy and plane waves in linear viscoelastic media","docAbstract":"The mathematical framework for describing plane waves in elastic and linear anelastic media is presented. Theoretical results suggest that the nature of plane waves in anelastic materials is distinctly different from the nature of plane waves in elastic materials. In elastic media the only type of inhomogeneous plane wave (P or S) that can propagate is one for which planes of constant phase are perpendicular to planes of constant amplitude. However, in anelastic media this is the only type of inhomogeneous wave that cannot propagate. For an inhomogeneous P or S plane wave the particle motion is elliptical, the velocity is less than that of a corresponding homogeneous wave, the maximum attenuation is greater than that of a corresponding homogeneous wave, and the direction of maximum energy flow is not the direction of phase propagation. Expressions for the energy flux, energy densities, dissipated energy, stored energy, and Q−1 are derived from an explicit energy conservation relation, valid for an arbitrary steady state viscoelastic radiation field. Each energy expression is valid for homogeneous or inhomogeneous P or S plane waves in elastic or linear anelastic media.
","language":"English","publisher":"Wiley","doi":"10.1029/JB078i014p02442","usgsCitation":"Borcherdt, R.D., 1973, Energy and plane waves in linear viscoelastic media: Journal of Geophysical Research, v. 78, no. 14, p. 2442-2453, https://doi.org/10.1029/JB078i014p02442.","productDescription":"12 p.","startPage":"2442","endPage":"2453","costCenters":[{"id":234,"text":"Earthquake Hazards Program","active":true,"usgs":true}],"links":[{"id":404501,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"78","issue":"14","noUsgsAuthors":false,"publicationDate":"2012-09-20","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":847629,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70241915,"text":"70241915 - 1973 - Antarctic icebergs as a fresh water resource","interactions":[],"lastModifiedDate":"2023-03-30T16:58:27.216648","indexId":"70241915","displayToPublicDate":"1973-05-01T11:46:18","publicationYear":"1973","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3095,"text":"Polar Record","active":true,"publicationSubtype":{"id":10}},"title":"Antarctic icebergs as a fresh water resource","docAbstract":"In a recent study (Weeks and Campbell, in press), we made a rather complete examination of the idea that icebergs could advantageously be used as a source of fresh water. The origin of the general idea of transporting icebergs is obscure; it may date from the 1850's when ice was transported from Alaska to California as a commercial venture. The current revival of the idea, in particular as applied to the water problems of southern California, can be credited to John Issacs of the Scripps Institute of Oceanography (Burt, 1956). However no critical evaluation was ever published. We initially undertook the present study because our intuition “told” us that the idea was untenable and we thought that we could easily prove that this was the case, thereby laying the idea to rest. Our intuition proved to be wrong and we now believe that the idea is, indeed, highly attractive when applied to certain locations in the Southern Hemisphere. This note briefly outlines our approach to analyzing the problem and our results.
","language":"English","publisher":"Cambridge University Press","doi":"10.1017/S0032247400063592","usgsCitation":"Weeks, W., and Campbell, W.J., 1973, Antarctic icebergs as a fresh water resource: Polar Record, v. 16, no. 104, p. 661-665, https://doi.org/10.1017/S0032247400063592.","productDescription":"5 p.","startPage":"661","endPage":"665","costCenters":[],"links":[{"id":414981,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"104","noUsgsAuthors":false,"publicationDate":"2009-10-27","publicationStatus":"PW","contributors":{"authors":[{"text":"Weeks, W.F.","contributorId":39433,"corporation":false,"usgs":true,"family":"Weeks","given":"W.F.","email":"","affiliations":[],"preferred":false,"id":868214,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Campbell, W. J.","contributorId":8614,"corporation":false,"usgs":true,"family":"Campbell","given":"W.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":868215,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70241827,"text":"70241827 - 1973 - Tectonic history of the central Aleutian arc","interactions":[],"lastModifiedDate":"2023-03-29T11:04:22.350874","indexId":"70241827","displayToPublicDate":"1973-05-01T11:44:21","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":"Tectonic history of the central Aleutian arc","docAbstract":"No abstract available.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1973)84<1555:THOTCA>2.0.CO;2","usgsCitation":"Marlow, M.S., Scholl, D.W., Buffington, E.C., and Alpha, T.R., 1973, Tectonic history of the central Aleutian arc: Geological Society of America Bulletin, v. 84, no. 5, p. 1555-1574, https://doi.org/10.1130/0016-7606(1973)84<1555:THOTCA>2.0.CO;2.","productDescription":"24 p.","startPage":"1555","endPage":"1574","costCenters":[],"links":[{"id":414834,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Aleutian Arc","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n 186.46181641629397,\n 53.42840240266102\n ],\n [\n 175.21469180839983,\n 53.42840240266102\n ],\n [\n 175.21469180839983,\n 50.86602607525239\n ],\n [\n 186.46181641629397,\n 50.86602607525239\n ],\n [\n 186.46181641629397,\n 53.42840240266102\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"84","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Marlow, Michael S.","contributorId":72775,"corporation":false,"usgs":true,"family":"Marlow","given":"Michael","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":867856,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scholl, David W. 0000-0001-6500-6962 dscholl@usgs.gov","orcid":"https://orcid.org/0000-0001-6500-6962","contributorId":3738,"corporation":false,"usgs":true,"family":"Scholl","given":"David","email":"dscholl@usgs.gov","middleInitial":"W.","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":867857,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Buffington, E. C.","contributorId":13948,"corporation":false,"usgs":true,"family":"Buffington","given":"E.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":867858,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Alpha, Tau Rho","contributorId":63371,"corporation":false,"usgs":true,"family":"Alpha","given":"Tau","email":"","middleInitial":"Rho","affiliations":[],"preferred":false,"id":867859,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70160798,"text":"70160798 - 1973 - Hydrologic changes after clear-cut logging in a small Oregon coastal watershed","interactions":[],"lastModifiedDate":"2016-06-02T12:45:40","indexId":"70160798","displayToPublicDate":"1973-05-01T05:15:00","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":"Hydrologic changes after clear-cut logging in a small Oregon coastal watershed","docAbstract":"Preliminary graphical analysis indicates that clear-cut logging of a small Oregon watershed has significantly altered certain hydrologic characteristics. After logging, moderate increases were noted in annual runoff, but no significant changes were detected in either peak or minimum flow rates. Both the annual sediment yields and the maximum monthly water temperatures increased greatly after logging; sediment yields and temperatures in the unlogged control watershed actually decreased during the postlogging period.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Harris, D., 1973, Hydrologic changes after clear-cut logging in a small Oregon coastal watershed: Journal of Research of the U.S. Geological Survey, v. 1, no. 4, p. 487-491.","productDescription":"5 p.","startPage":"487","endPage":"491","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"links":[{"id":313107,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":313106,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue4/report.pdf","text":"Report","size":"20.4 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States of America","state":"Oregon","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.88964653015137,\n 44.537938196796\n ],\n [\n -123.8719654083252,\n 44.54497334861026\n ],\n [\n -123.85497093200684,\n 44.545095691555815\n ],\n [\n -123.84140968322752,\n 44.53879469550639\n ],\n [\n -123.83849143981934,\n 44.52729209003314\n ],\n [\n -123.848876953125,\n 44.51254340585983\n ],\n [\n -123.87660026550293,\n 44.50954425403351\n ],\n [\n -123.89368057250977,\n 44.520132406737744\n ],\n [\n -123.88964653015137,\n 44.537938196796\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"1","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"56850eafe4b0a04ef493398c","contributors":{"authors":[{"text":"Harris, D.D.","contributorId":59002,"corporation":false,"usgs":true,"family":"Harris","given":"D.D.","email":"","affiliations":[],"preferred":false,"id":583998,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70161766,"text":"70161766 - 1973 - Metamorphic facies indicated by vein minerals in basal beds of the Great Valley sequence, northern California","interactions":[],"lastModifiedDate":"2016-01-05T16:34:21","indexId":"70161766","displayToPublicDate":"1973-05-01T05:15:00","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":"Metamorphic facies indicated by vein minerals in basal beds of the Great Valley sequence, northern California","docAbstract":"A reexamination of reported blueschist mineral localities in the basal strata of the Great Valley sequence revealed only prehnite-pumpellyite facies minerals. Franciscan graywacke thrust below the Great Valley rocks contains lawsonite-quartz blueschist assemblages. At a common pressure of about 4 kb, the Franciscan blueschists formed at lower temperatures than the overlying Great Valley prehnite-bearing rocks, lending support to tectonic models that involve rapid subduction of the Franciscan rocks.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Bailey, E., and Jones, D.L., 1973, Metamorphic facies indicated by vein minerals in basal beds of the Great Valley sequence, northern California: Journal of Research of the U.S. Geological Survey, v. 1, no. 4, p. 383-385.","productDescription":"3 p.","startPage":"383","endPage":"385","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":313871,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":313870,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue4/report.pdf","text":"Report","size":"20.4 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States of America","state":"California","otherGeospatial":"Great Valley Sequence","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -122.310791015625,\n 40.63896734381723\n ],\n [\n -122.71728515624999,\n 40.421860362045194\n ],\n [\n -122.58544921875,\n 39.80009595634841\n ],\n [\n -122.56347656249999,\n 39.29179704377487\n ],\n [\n -122.200927734375,\n 38.84826438869913\n ],\n [\n -121.9921875,\n 38.53097889440026\n ],\n [\n -122.01416015625,\n 38.151837403006766\n ],\n [\n -121.67358398437499,\n 37.80544394934274\n ],\n [\n -121.343994140625,\n 37.58811876638322\n ],\n [\n -121.08032226562499,\n 37.02886944696474\n ],\n [\n -120.38818359375,\n 36.39475669987383\n ],\n [\n -120.10253906249999,\n 35.88905007936091\n ],\n [\n -120.05859375,\n 35.380092992092145\n ],\n [\n -119.83886718750001,\n 35.092945313732635\n ],\n [\n -119.3115234375,\n 34.985003130171066\n ],\n [\n -118.85009765625,\n 35.05698043137265\n ],\n [\n -118.66333007812499,\n 35.25459097465025\n ],\n [\n -118.7841796875,\n 35.88905007936091\n ],\n [\n -118.87207031250001,\n 36.30627216957992\n ],\n [\n -119.72900390625001,\n 37.09900294387622\n ],\n [\n -120.157470703125,\n 37.483576550426996\n ],\n [\n -120.50903320312501,\n 37.666429212090605\n ],\n [\n -120.87158203125,\n 37.89219554724437\n ],\n [\n -120.948486328125,\n 38.12591462924157\n ],\n [\n -120.948486328125,\n 38.35027253825765\n ],\n [\n -121.014404296875,\n 38.66835610151509\n ],\n [\n -121.22314453124999,\n 39.08743603215884\n ],\n [\n -121.47583007812501,\n 39.63953756436671\n ],\n [\n -121.81640624999999,\n 40.136890695345905\n ],\n [\n -121.86035156249999,\n 40.463666324587685\n ],\n [\n -122.04711914062499,\n 40.72228267283148\n ],\n [\n -122.310791015625,\n 40.63896734381723\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"1","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"568cf747e4b0e7a44bc0f178","contributors":{"authors":[{"text":"Bailey, Edgar H.","contributorId":55835,"corporation":false,"usgs":true,"family":"Bailey","given":"Edgar H.","affiliations":[],"preferred":false,"id":587698,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jones, David L.","contributorId":61925,"corporation":false,"usgs":true,"family":"Jones","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":587699,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70160813,"text":"70160813 - 1973 - Solubility of cryolite at 25° C and 1 atmosphere pressure","interactions":[],"lastModifiedDate":"2015-12-30T16:32:05","indexId":"70160813","displayToPublicDate":"1973-05-01T05:15:00","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":"Solubility of cryolite at 25° C and 1 atmosphere pressure","docAbstract":"For natural cryolite from Greenland the activity product for the reaction (in water),
Na3 Al F6 c --> 3Na+ + Al3+ + 6F-,
was found to be 10-34.3 +/- 0.1. This is in good agreement with earlier work in which equilibrium was approached from supersaturation.
The Butano Sandstone is an Eocene continental borderland deep-sea fan deposit located in the Santa Cruz Mountains, Calif. Paleoslope measurements from contorted strata within it yield a regional northward paleoslope for the fan. Detailed paleocurrent measurements from conglomerate clast orientations, flute casts, groove casts, current-ripple markings, small-scale cross-strata, convolute laminations, and flame structures yield a sediment-dispersal pattern characterized by northward transport of coarser grained sediments downfan along major channels and transport of finer grained sediments outward and away from channels by overspilling. The overall paleocurrent pattern is oriented radially outward from the fan apex and indicates that the growth, development, and dispersal of sediments on this
ancient deep-sea fan resembled that on modern deep-sea fans.
The generally regular three-dimensional geometry of drainage networks is the basis for a simple method of terrain analysis providing clues to bedrock conditions and other factors that determine topographic forms. On a reach of any stream, a gradient-index value can be obtained which allows meaningful comparisons of channel slope on streams of different sizes. The index is believed to reflect stream power or competence and is simply the product of the channel slope at a point and channel length measured along the longest stream above the point
where the calculation is made. In an adjusted topography, changes in gradient-index values along a stream generally correspond to differences in bedrock or introduced load. In any landscape the gradient index of a stream is related to total relief and stream regimen. Thus, climate, tectonic events, and geomorphic history must be considered in using the gradient index. Gradient-index values can be obtained quickly by simple measurements on topographic maps, or they can be obtained by more sophisticated photogrammetric measurements that involve simple computer calculations from x, y, z coordinates.
Silicic vitric tuffs in saline, alkaline lacustrine deposits are commonly altered to a variety of zeolites and potassium feldspar. The tuffs generally show a lateral gradation, in a basinward direction, of fresh glass to zeolites and then to potassium feldspar. Zeolites were formed early in diagenesis by reaction of the glass with the interstitial water. The feldspar, however, was formed later by reaction of the zeolites with interstitial water, and its formation can be correlated with water of relatively high salinity and alkalinity. Semiquantitative spectrographic analyses for boron in the zeolites and potassium feldspar show that most of the boron resides in the relatively late feldspar. The boron content of the zeolites is commonly less than 100 ppm, whereas the boron content of the potassium feldspar is commonly greater than 1,000 ppm. Boron apparently substitutes for aluminum in the feldspar structure and causes distortion of the monoclinic unit cell such that the b and c dimensions are shortened. These boron-bearing potassium feldspars having anomalous cell parameters seem unique to saline,
alkaline lacustrine deposits and could serve as a prospecting aid for locating buried saline minerals.
An extensive program of slope-stability studies is presently underway in the San Francisco Bay region, California. Work to date has resulted in the publication of estimates of landslide damage, an estimated-landslide-abundance map of the region, new slope maps prepared by photomechanical processes, photointerpretive maps of landslide, colluvial, and other surficial deposits, and maps of relative slope stability. These studies indicate that landsliding is a major slope-erosion process in the region, that the damage resulting from landsliding is very great, and that additional development in the upland parts of the region should not be undertaken without careful evaluation of slope stability.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","collaboration":"Study done cooperatively with Department of Housing and Urban Development and San Mateo County","usgsCitation":"Nilsen, T., and Brabb, E.E., 1973, Current slope-stability studies in the San Francisco Bay region: Journal of Research of the U.S. Geological Survey, v. 1, no. 4, p. 431-437.","productDescription":"7 p.","startPage":"431","endPage":"437","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":313754,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":313753,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue4/report.pdf","text":"Report","size":"20.4 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States of America","state":"California","otherGeospatial":"San Francisco Bay Region","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.53027343749999,\n 38.75408327579141\n ],\n [\n -122.838134765625,\n 38.81831117374662\n ],\n [\n -122.68981933593749,\n 38.68122173079789\n ],\n [\n -122.464599609375,\n 38.69408504756833\n ],\n [\n -122.4041748046875,\n 38.84826438869913\n ],\n [\n -121.70654296874999,\n 38.878204997061474\n ],\n [\n -121.46484375,\n 38.28993659801203\n ],\n [\n -121.3714599609375,\n 38.048091067457236\n ],\n [\n -121.61865234375,\n 37.996162679728116\n ],\n [\n -121.39343261718749,\n 37.86618078529668\n ],\n [\n -121.37695312499999,\n 37.522797055259616\n ],\n [\n -121.0748291015625,\n 37.12966595484084\n ],\n [\n -121.45935058593749,\n 36.97622678464096\n ],\n [\n -121.83288574218749,\n 37.07271048132946\n ],\n [\n -122.06359863281249,\n 37.13842453422676\n ],\n [\n -122.288818359375,\n 37.06394430056685\n ],\n [\n -122.36572265625,\n 37.04202441635081\n ],\n [\n -123.53027343749999,\n 38.75408327579141\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"1","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"568cf73fe4b0e7a44bc0f144","contributors":{"authors":[{"text":"Nilsen, Tor H.","contributorId":100016,"corporation":false,"usgs":true,"family":"Nilsen","given":"Tor H.","affiliations":[],"preferred":false,"id":587243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brabb, Earl E.","contributorId":48939,"corporation":false,"usgs":true,"family":"Brabb","given":"Earl","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":587244,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70161655,"text":"70161655 - 1973 - Identification of a lithium-bearing smectite from Spor Mountain, Utah","interactions":[],"lastModifiedDate":"2016-01-05T13:42:02","indexId":"70161655","displayToPublicDate":"1973-05-01T01:15:00","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":"Identification of a lithium-bearing smectite from Spor Mountain, Utah","docAbstract":"Chemical analyses, X-ray diffraction data, and cation exchange determinations are given for a lithium-bearing smectite. The X-ray data and Greene-Kelly's lithium test indicate the presence of both dioctahedral and trioctahedral phases. The exchange determinations indicate that the lithium is in the structure of the clay, and the chemical data are intermediate between those for hectorite and montmorillonite. All data indicate that the clay is a mixture of hectorite and montmorillonite.
","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Starkey, H., and Mountjoy, W., 1973, Identification of a lithium-bearing smectite from Spor Mountain, Utah: Journal of Research of the U.S. Geological Survey, v. 1, no. 4, p. 415-419.","productDescription":"5 p.","startPage":"415","endPage":"419","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":313759,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":313758,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/journal/1973/vol1issue4/report.pdf","text":"Report","size":"20.4 MB","linkFileType":{"id":1,"text":"pdf"}}],"country":"United States of America","state":"Utah","otherGeospatial":"Spor Mountain","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -113.2147979736328,\n 39.77582494105872\n ],\n [\n -113.22784423828125,\n 39.75761606081634\n ],\n [\n -113.2412338256836,\n 39.74679401056388\n ],\n [\n -113.2027816772461,\n 39.73676229957947\n ],\n [\n -113.22269439697264,\n 39.73227395608596\n ],\n [\n -113.2254409790039,\n 39.714317659615716\n ],\n [\n -113.19282531738281,\n 39.69107315898447\n ],\n [\n -113.16707611083983,\n 39.69556418405592\n ],\n [\n -113.16844940185547,\n 39.70877138781409\n ],\n [\n -113.1643295288086,\n 39.72778532033429\n ],\n [\n -113.15814971923828,\n 39.752073271862386\n ],\n [\n -113.18252563476561,\n 39.76817252009203\n ],\n [\n -113.2147979736328,\n 39.77582494105872\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"1","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"568cf744e4b0e7a44bc0f169","contributors":{"authors":[{"text":"Starkey, Harry C.","contributorId":102074,"corporation":false,"usgs":true,"family":"Starkey","given":"Harry C.","affiliations":[],"preferred":false,"id":587250,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mountjoy, Wayne","contributorId":21973,"corporation":false,"usgs":true,"family":"Mountjoy","given":"Wayne","email":"","affiliations":[],"preferred":false,"id":587251,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70161756,"text":"70161756 - 1973 - A Precambrian diamictite below the base of the Stillwater Complex, southwestern Montana","interactions":[],"lastModifiedDate":"2016-01-05T16:10:27","indexId":"70161756","displayToPublicDate":"1973-05-01T01:15:00","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":"A Precambrian diamictite below the base of the Stillwater Complex, southwestern Montana","docAbstract":"The metasedimentary rocks of Precambrian age below the base of the Stillwater Complex, southwestern Montana, contain a metamorphosed diamictite similar to diamictite in strata of late Precambrian and Early Cambrian age in Canada and the Western United States. The diamictite consists of a quartz-cordierite matrix containing an average 10-15 percent of rock fragments diverse in shape, size, angularity, lithologic types, and textures. The diamictite unit is poorly sorted, crops out discontinuously for 14 miles, and locally has a crude layering containing dropstones. Its origin is debatable, but the rock is suggestive of glacial marine deposition. The minimum age of the diamictite of the complex is 2,750 m.y. from U-Pb determination on zircon of intrusive quartz monzonite, the maximum 3,140 m.y. as determined on zircon from metasedimentary rocks interbedded with the diamictite.
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