In the eastern and north-central United States, lakes and streams with low acid neutralizing capacity are at risk from acidity. Resource management agencies are interested in developing mitigation strategies that protect or restore fisheries in these waters. Addition of limestone (calcium carbonate) to improve water quality and prevent episodic depressions of pH during precipitation events and spring runoff is one mitigation technique being used. The ecological changes that accompany such treatment of streams and lakes are being investigated in a cooperative program between the U.S. Fish and Wildlife Service and individual states. Streams in Massachusetts, West Virginia and Tennessee, and a lake in Minnesota are included in this 5-yr research program. Intensive monitoring during pre- and post-liming tracks a suite of physical, chemical and biological parameters that influence the re-establishment or maintenance of healthy fisheries. Supporting studies on liming being conducted at Adirondack lakes in New York focus on fisheries management. A model on the influence of liming on light attenuation and thermal stratification is also being developed. Management guidelines are to be generated from the program results.
Stratigraphic relations and ten 14C ages show that movement occurred on the Meers fault in late Holocene time. Movement on the fault postdates the Browns Creek Alluvium, which began to be deposited between 14,000 and 13,000 yr B.P., and predates the East Cache Alluvium, which was deposited between 800 and 100 yr B.P. Surface warping along the fault led to local stream incision on the upthrown side of the fault and deposition of slopewash and fan alluvium on the down-thrown side. Three 14C ages of charcoal and soil humus buried by fan alluvium indicate that faulting probably occurred between 1400 and 1100 yr B.P. The soil that formed in the fan alluvium is only slightly more developed than that in the East Cache Alluvium, and the weak development of both soils indicates a geologically recent age that is consistent with the radiocarbon ages obtained for these deposits.
","language":"English","publisher":"GSA","doi":"10.1130/0016-7606(1988)100<0392:SEOHFI>2.3.CO;2","usgsCitation":"Madole, R.F., 1988, Stratigraphic evidence of Holocene faulting in the mid-continent: The Meers fault, southwestern Oklahoma: GSA Bulletin, v. 100, no. 3, p. 392-401, https://doi.org/10.1130/0016-7606(1988)100<0392:SEOHFI>2.3.CO;2.","productDescription":"10 p.","startPage":"392","endPage":"401","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":371425,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oklahoma","otherGeospatial":"The Meers fault, southwestern Oklahoma ","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -100.008544921875,\n 36.19995805932895\n ],\n [\n -100.08544921874999,\n 34.53371242139564\n ],\n [\n -98.98681640625,\n 33.95247360616282\n ],\n [\n -98.360595703125,\n 33.988918483762156\n ],\n [\n -98.39355468749999,\n 34.732584206123626\n ],\n [\n -98.54736328125,\n 35.65729624809628\n ],\n [\n -98.89892578125,\n 36.12900165569652\n ],\n [\n -99.54711914062499,\n 36.2354121683998\n ],\n [\n -100.008544921875,\n 36.19995805932895\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"100","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Madole, Richard F. 0000-0002-9081-570X madole@usgs.gov","orcid":"https://orcid.org/0000-0002-9081-570X","contributorId":1340,"corporation":false,"usgs":true,"family":"Madole","given":"Richard","email":"madole@usgs.gov","middleInitial":"F.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":779977,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70207902,"text":"70207902 - 1988 - Voluminous submarine lava flows from Hawaiian volcanoes ","interactions":[],"lastModifiedDate":"2020-01-20T06:18:23","indexId":"70207902","displayToPublicDate":"1988-01-17T13:09:52","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Voluminous submarine lava flows from Hawaiian volcanoes ","docAbstract":"The GLORIA long-range sonar imaging system has revealed fields of large lava flows in the Hawaiian Trough east and south of Hawaii in water as deep as 5.5 km. Flows in the most extensive field (110 km long) have erupted from the deep submarine segment of Kilauea's east rift zone. Other flows have been erupted from Loihi and Mauna Loa. This discovery confirms a suspicion, long held from subaerial studies, that voluminous submarine flows are erupted from Hawaiian volcanoes, and it supports an inference that summit calderas repeatedly collapse and fill at intervals of centuries to millenia owing to voluminous eruptions. These extensive flows differ greatly in form from pillow lavas found previously along shallower segments of the rift zones; therefore, revision of concepts of volcano stratigraphy and structure may be required.
","language":"English","publisher":"GSA","doi":"10.1130/0091-7613(1988)016<0400:VSLFFH>2.3.CO;2","usgsCitation":"Holcomb, R.T., Moore, J.G., Lipman, P.W., and Belderson, R., 1988, Voluminous submarine lava flows from Hawaiian volcanoes : Geology, v. 16, no. 5, p. 400-404, https://doi.org/10.1130/0091-7613(1988)016<0400:VSLFFH>2.3.CO;2.","productDescription":"5 p.","startPage":"400","endPage":"404","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":371357,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Hawaii","otherGeospatial":"Hawaiian volcanoes","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -156.77490234375,\n 18.70869162255995\n ],\n [\n -154.44580078125,\n 18.70869162255995\n ],\n [\n -154.44580078125,\n 21.06399706324597\n ],\n [\n -156.77490234375,\n 21.06399706324597\n ],\n [\n -156.77490234375,\n 18.70869162255995\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"16","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Holcomb, Robin T.","contributorId":46938,"corporation":false,"usgs":true,"family":"Holcomb","given":"Robin","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":779698,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moore, James G. 0000-0002-7543-2401 jmoore@usgs.gov","orcid":"https://orcid.org/0000-0002-7543-2401","contributorId":2892,"corporation":false,"usgs":true,"family":"Moore","given":"James","email":"jmoore@usgs.gov","middleInitial":"G.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":779699,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lipman, Peter W. 0000-0001-9175-6118 plipman@usgs.gov","orcid":"https://orcid.org/0000-0001-9175-6118","contributorId":3486,"corporation":false,"usgs":true,"family":"Lipman","given":"Peter","email":"plipman@usgs.gov","middleInitial":"W.","affiliations":[{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":779700,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Belderson, R.H.","contributorId":221677,"corporation":false,"usgs":false,"family":"Belderson","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":779701,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70207882,"text":"70207882 - 1988 - Deformation along the northeast side of Blacktail Mountains salient, southwestern Montana ","interactions":[],"lastModifiedDate":"2020-01-16T13:56:02","indexId":"70207882","displayToPublicDate":"1988-01-16T13:49:52","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1726,"text":"GSA Memoirs","active":true,"publicationSubtype":{"id":10}},"title":"Deformation along the northeast side of Blacktail Mountains salient, southwestern Montana ","docAbstract":"The Blacktail Mountains salient is a convex-eastward area of stacked Laramide-age thrust faults that trend north and dip west at moderate angles. The thrusts occur in Mississippian to Cretaceous strata above a basement of Archean metamorphic rocks. The northern margin of the salient is delimited by the Jake Canyon fault, a northwest-trending, northeast-dipping Laramide reverse fault. During the Laramide orogeny, the fault formed a common boundary of the present-day Blacktail Mountains and a structural high that existed in the area of the present-day valley of Blacktail Deer Creek. The fault juxtaposed Archean metamorphic rocks upon Phanerozoic strata in the northwest-era half of its extent, and against other Archean metamorphic rocks in the southeastern half. General structural relationships and study of small-scale structures in local areas show that movement along the Jake Canyon fault caused deformation of the north-trending thrust faults and associated folds. During Cenozoic extensional faulting, the Blacktail fault developed northeast of the Jake Canyon fault, and generally delimits the southwestern side of the basin of sedimentary rocks that lies beneath the valley of Blacktail Deer Creek.
","language":"English","publisher":"GSA","doi":"10.1130/MEM171-p203","usgsCitation":"Tysdal, R.G., 1988, Deformation along the northeast side of Blacktail Mountains salient, southwestern Montana : GSA Memoirs, v. 171, p. 203-215, https://doi.org/10.1130/MEM171-p203.","productDescription":"13 p.","startPage":"203","endPage":"215","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":371319,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho, Montana","otherGeospatial":"Northeast side of Blacktail Mountains ","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -113.26904296874999,\n 43.78695837311561\n ],\n [\n -111.55517578125,\n 43.78695837311561\n ],\n [\n -111.55517578125,\n 45.583289756006316\n ],\n [\n -113.26904296874999,\n 45.583289756006316\n ],\n [\n -113.26904296874999,\n 43.78695837311561\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"171","noUsgsAuthors":false,"publicationDate":"1988-01-01","publicationStatus":"PW","contributors":{"authors":[{"text":"Tysdal, Russell G.","contributorId":1700,"corporation":false,"usgs":true,"family":"Tysdal","given":"Russell","email":"","middleInitial":"G.","affiliations":[],"preferred":true,"id":779627,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70122644,"text":"70122644 - 1988 - Changes in the morphometry of Las Vegas Wash and the impact on water quality","interactions":[],"lastModifiedDate":"2025-04-23T15:51:07.991619","indexId":"70122644","displayToPublicDate":"1988-01-01T09:31:11","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2592,"text":"Lake and Reservoir Management","active":true,"publicationSubtype":{"id":10}},"title":"Changes in the morphometry of Las Vegas Wash and the impact on water quality","docAbstract":"Las Vegas Wash, a natural wash east of Las Vegas, Nevada, carries stormwater, groundwater drainage, and sewage effluent from two sewage treatment plants to Lake Mean. Over 80 percent of the normal discharge of approximately 3.4 m3/s (120 ft3/s) consists of effluent from the City of Las Vegas and Clark County sewage treatment plants. Beginning in the 1950s, a large wetland area developed along the wash that supported waterfowl populations and contributed to some water quality transformations. Heavy rains and subsequent flooding in the area in 1983 and 1984 resulted in erosion and channelization that greatly reduced the wetland area within Las Vegas Wash. The reduction in wetland area shortened water travel time in the wash and affected water quality. The primary impacts on the water entering Lake Mead have been an increase in temperature, a decrease in dissolved oxygen concentration, and an increase in ammonia levels. Other physical-chemical parameters and changes in nutrient transformations are also discussed.","language":"English","publisher":"Taylor & Francis","publisherLocation":"Washington, D.C.","doi":"10.1080/07438148809354388","usgsCitation":"Roline, R.A., and Sartoris, J.J., 1988, Changes in the morphometry of Las Vegas Wash and the impact on water quality: Lake and Reservoir Management, v. 4, no. 1, p. 135-142, https://doi.org/10.1080/07438148809354388.","productDescription":"8 p.","startPage":"135","endPage":"142","numberOfPages":"8","costCenters":[],"links":[{"id":293067,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Nevada","otherGeospatial":"Las Vegas Wash","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -114.894888,36.123186 ], [ -114.894888,36.14121 ], [ -114.862873,36.14121 ], [ -114.862873,36.123186 ], [ -114.894888,36.123186 ] ] ] } } ] }","volume":"4","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53fef0cfe4b01f35f8fd6953","contributors":{"authors":[{"text":"Roline, Richard A.","contributorId":56984,"corporation":false,"usgs":true,"family":"Roline","given":"Richard","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":499533,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sartoris, James J.","contributorId":98018,"corporation":false,"usgs":true,"family":"Sartoris","given":"James","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":499534,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70231784,"text":"70231784 - 1988 - Estimation of ground-water use for irrigation in eastern Washington using Landsat imagery","interactions":[],"lastModifiedDate":"2022-05-26T13:42:28.843253","indexId":"70231784","displayToPublicDate":"1988-01-01T08:32:45","publicationYear":"1988","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Estimation of ground-water use for irrigation in eastern Washington using Landsat imagery","docAbstract":"No abstract available.
","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the Symposium on Water-Use Data for Water Resources Management","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Symposium on Water-Use Data for Water Resources Management","conferenceDate":"1988","conferenceLocation":"Arizona, United States","language":"English","publisher":"American Water Resources Association","usgsCitation":"Van Metre, P.C., and Seevers, P., 1988, Estimation of ground-water use for irrigation in eastern Washington using Landsat imagery, in Proceedings of the Symposium on Water-Use Data for Water Resources Management, Arizona, United States, 1988, p. 667-679.","productDescription":"TPS88-2, 13 p.","startPage":"667","endPage":"679","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":401144,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -480.377197265625,\n 49.001843917978526\n ],\n [\n -480.34423828124994,\n 45.69850658738846\n ],\n [\n -480.047607421875,\n 45.775186183521036\n ],\n [\n -479.81689453125,\n 45.836454050187726\n ],\n [\n -479.72900390625006,\n 45.82114340079471\n ],\n [\n -479.619140625,\n 45.91294412737392\n ],\n [\n -479.41040039062494,\n 45.882360730184025\n ],\n [\n -479.27856445312494,\n 45.93587062119052\n ],\n [\n -479.124755859375,\n 45.94351068030587\n ],\n [\n -478.97094726562494,\n 46.01222384063236\n ],\n [\n -476.90551757812494,\n 46.00459325574482\n ],\n [\n -476.949462890625,\n 46.09609080214316\n ],\n [\n -476.90551757812494,\n 46.164614496897094\n ],\n [\n -476.96044921874994,\n 46.29381556233369\n ],\n [\n -477.04833984375006,\n 46.36967413462374\n ],\n [\n -477.00439453125,\n 46.430285240839964\n ],\n [\n -477.02636718749994,\n 49.001843917978526\n ],\n [\n -480.377197265625,\n 49.001843917978526\n ]\n ]\n ]\n }\n }\n ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Van Metre, Peter C. 0000-0001-7564-9814","orcid":"https://orcid.org/0000-0001-7564-9814","contributorId":211144,"corporation":false,"usgs":true,"family":"Van Metre","given":"Peter","email":"","middleInitial":"C.","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true},{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":451,"text":"National Water Quality Assessment Program","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":843823,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Seevers, P. M.","contributorId":94325,"corporation":false,"usgs":true,"family":"Seevers","given":"P. M.","affiliations":[],"preferred":false,"id":843824,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014710,"text":"70014710 - 1988 - Using laser micro mass spectrometry with the LAMMA-1000 instrument for monitoring relative elemental concentrations in vitrinite","interactions":[],"lastModifiedDate":"2012-03-12T17:19:33","indexId":"70014710","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2742,"text":"Mikrochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Using laser micro mass spectrometry with the LAMMA-1000 instrument for monitoring relative elemental concentrations in vitrinite","docAbstract":"The variation in relative elemental concentrations among a series of coal macerals belonging to the vitrinite maceral group was determined using laser micro mass spectrometry (LAMMS). Variations in Ba, Cr, Ga, Sr, Ti, and V concentrations among the coals were determined using the LAMM A-1000 instrument. LAMMS analysis is not limited to these elements; their selection illustrates the application of the technique. Ba, Cr, Ga, Sr, Ti, and V have minimal site-to-site variance in the vitrinite macerals of the studied coals as measured by LAMMS. The LAMMS data were compared with bulk elemental data obtained by instrumental neutron activation analysis (INAA) and D. C. arc optical emission spectroscopy (DCAS) in order to determine the reliability of the LAMMS data. The complex nature of the ionization phenomena in LAMMS and the lack of standards characterized on a microscale makes obtaining quantitative elemental data within the ionization microvolume difficult; however, we demonstrate that the relative variation of an element among vitrinites from different coal beds in the eastern United States can be observed using LAMMS in a \"bulk\" mode by accumulating signal intensities over several microareas of each vitrinite. Our studies indicate gross changes (greater than a factor of 2 to 5 depending on the element) can be monitored when the elemental concentration is significantly above the detection limit. \"Bulk\" mode analysis was conducted to evaluate the accuracy of future elemental LAMMS microanalyses. The primary advantage of LAMMS is the inherent spatial resolution, ~ 20 ??m for coal. Two different vitrite bands in the Lower Bakerstown coal bed (CLB-1) were analyzed. The analysis did not establish any certain concentration differences in Ba, Cr, Ga, Sr, Ti, and V between the two bands. ?? 1988 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Mikrochimica Acta","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF01236096","issn":"00263672","usgsCitation":"Morelli, J., Hercules, D., Lyons, P., Palmer, C., and Fletcher, J., 1988, Using laser micro mass spectrometry with the LAMMA-1000 instrument for monitoring relative elemental concentrations in vitrinite: Mikrochimica Acta, v. 96, no. 1-6, p. 105-118, https://doi.org/10.1007/BF01236096.","startPage":"105","endPage":"118","numberOfPages":"14","costCenters":[],"links":[{"id":205644,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF01236096"},{"id":225655,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"1-6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc066e4b08c986b32a0de","contributors":{"authors":[{"text":"Morelli, J.J.","contributorId":90891,"corporation":false,"usgs":true,"family":"Morelli","given":"J.J.","email":"","affiliations":[],"preferred":false,"id":369065,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hercules, D.M.","contributorId":86905,"corporation":false,"usgs":true,"family":"Hercules","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":369063,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lyons, P.C.","contributorId":87285,"corporation":false,"usgs":true,"family":"Lyons","given":"P.C.","email":"","affiliations":[],"preferred":false,"id":369064,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Palmer, C.A.","contributorId":81894,"corporation":false,"usgs":true,"family":"Palmer","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":369062,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Fletcher, J.D.","contributorId":24928,"corporation":false,"usgs":true,"family":"Fletcher","given":"J.D.","email":"","affiliations":[],"preferred":false,"id":369061,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70014760,"text":"70014760 - 1988 - The northeastern Ohio earthquake of 31 January 1986: Was it induced?","interactions":[],"lastModifiedDate":"2023-10-27T23:54:55.974177","indexId":"70014760","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"The northeastern Ohio earthquake of 31 January 1986: Was it induced?","docAbstract":"On 31 January 1986, at 11:46 EST, an earthquake of mb = 5.0 occurred about 40 km east of Cleveland, Ohio, and about 17 km south of the Perry Nuclear Power Plant. The earthquake was felt over a broad area, including 11 states, the District of Columbia, and parts of Ontario, Canada, caused intensity VI-VII at distances of 15 km, and generated relatively high accelerations (0.18 g) of short duration at the Perry plant. Thirteen aftershocks were detected as of 15 April, with six occurring within the first 8 days. Two of the aftershocks were felt. Magnitudes for the aftershocks ranged from about 0.5 to 2.5. Focal depths for all of the earthquakes ranged from 2 to 6 km. Except for one small earthquake, all of the aftershocks occurred in a very tight cluster with a north-northeast orientation. Focal mechanisms of the aftershocks exhibit predominantly oblique right-slip motion on nearly vertical nodal planes oriented N15° to 45°E, with a nearly horizontal P axis north of east.
","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0780010188","usgsCitation":"Nicholson, C., Roeloffs, E., and Wesson, R.L., 1988, The northeastern Ohio earthquake of 31 January 1986: Was it induced?: Bulletin of the Seismological Society of America, v. 78, no. 1, p. 188-217, https://doi.org/10.1785/BSSA0780010188.","productDescription":"30 p.","startPage":"188","endPage":"217","numberOfPages":"30","costCenters":[],"links":[{"id":225398,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":422212,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.geoscienceworld.org/ssa/bssa/article/78/1/188/102303/The-northeastern-Ohio-earthquake-of-31-January"}],"country":"United States","state":"Ohio","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -82.61150833824179,\n 41.988098644388344\n ],\n [\n -82.61150833824179,\n 40.99235950994091\n ],\n [\n -80.86468216636675,\n 40.99235950994091\n ],\n [\n -80.86468216636675,\n 41.988098644388344\n ],\n [\n -82.61150833824179,\n 41.988098644388344\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"78","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bae25e4b08c986b323f2a","contributors":{"authors":[{"text":"Nicholson, C.","contributorId":39118,"corporation":false,"usgs":true,"family":"Nicholson","given":"C.","email":"","affiliations":[],"preferred":false,"id":369221,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Roeloffs, E.","contributorId":21680,"corporation":false,"usgs":true,"family":"Roeloffs","given":"E.","email":"","affiliations":[],"preferred":false,"id":369220,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wesson, R. L.","contributorId":51752,"corporation":false,"usgs":true,"family":"Wesson","given":"R.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":369222,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70014299,"text":"70014299 - 1988 - Rainfall intensity-duration equations","interactions":[],"lastModifiedDate":"2012-03-12T17:19:36","indexId":"70014299","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Rainfall intensity-duration equations","docAbstract":"A method for rapidly developing a rainfall intensity-duration equation for durations less than one hour and recurrence intervals between 2 and 100 years for any location in the conterminous United States is presented. Optimal parameters of a general rainfall-intensity duration equation are determined using precipitation depths for durations of 5, 10, 15, 30 and 60 minutes obtained from commonly available isopluvial maps. A single set of parameters applies to the entire western U.S. For the central and eastern U.S, a graphical means of determining the parameters is provided.","conferenceTitle":"Hydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering","conferenceDate":"8 August 1988 through 12 August 1988","conferenceLocation":"Colorado Springs, CO, USA","language":"English","publisher":"Publ by ASCE","publisherLocation":"New York, NY, United States","isbn":"0872626709; 0872626709","usgsCitation":"Froehlich, D.C., 1988, Rainfall intensity-duration equations, Hydraulic Engineering: Proceedings of the 1988 National Conference on Hydraulic Engineering, Colorado Springs, CO, USA, 8 August 1988 through 12 August 1988, p. 826-831.","startPage":"826","endPage":"831","numberOfPages":"6","costCenters":[],"links":[{"id":226143,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a945fe4b0c8380cd8137e","contributors":{"authors":[{"text":"Froehlich, David C.","contributorId":58617,"corporation":false,"usgs":true,"family":"Froehlich","given":"David","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":368067,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014734,"text":"70014734 - 1988 - Geometry of the Juan de Fuca plate beneath Washington and northern Oregon from seismicity","interactions":[],"lastModifiedDate":"2023-10-27T23:58:45.533549","indexId":"70014734","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Geometry of the Juan de Fuca plate beneath Washington and northern Oregon from seismicity","docAbstract":"Earthquake hypocenters within the subducting Juan de Fuca plate beneath Washington and northern Oregon are interpreted as showing that the direction of plate dip changes from northeast beneath the Puget Sound region to east-southeast beneath southwestern Washington. The shallowest hypocenters within the Juan de Fuca plate are between 30- to 40-km depth, and the distribution of these events strikes north-northeast from near the mouth of the Columbia River to the northern Olympic Mountains. The distribution of hypocenters between 40 to 50 km generally strikes parallel with the shallowest events, but shows a significant broadening beneath the eastern Olympic Mountains and Puget Sound. Events with depths greater than 50 km south of the 1965 Seattle earthquake (mb = 6.5) strike north-northeast, approximately parallel with the shallower distributions; however, north of this event, the distribution of these deeper hypocenters strikes northwest. This change in the distribution of earthquake hypocenters reflects an upward arching of the Juan de Fuca plate plate beneath Puget Sound compared with the depth of the plate beneath southwestern Washington. The T axis calculated for the 1949 South Puget Sound earthquake (MS = 7.1) is oriented to the southeast, and the 20° plunge of the T axis is in good agreement with the plate dip angle determined from the earthquake hypocenters. We conclude that the 1949 earthquake resulted at least in part from down-dip tensional forces within the subducting Juan de Fuca plate. One consequence of the change in the direction of plate dip is that volcanic front in Washington is everywhere perpendicular to the dip of the Juan de Fuca plate.
","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0780010264","usgsCitation":"Weaver, C., and Baker, G., 1988, Geometry of the Juan de Fuca plate beneath Washington and northern Oregon from seismicity: Bulletin of the Seismological Society of America, v. 78, no. 1, p. 264-275, https://doi.org/10.1785/BSSA0780010264.","productDescription":"12 p.","startPage":"264","endPage":"275","numberOfPages":"12","costCenters":[],"links":[{"id":226105,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Oregon, Washington","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -126.57431348966908,\n 50.332968063146296\n ],\n [\n -126.57431348966908,\n 42.70034938825228\n ],\n [\n -116.15927442716894,\n 42.70034938825228\n ],\n [\n -116.15927442716894,\n 50.332968063146296\n ],\n [\n -126.57431348966908,\n 50.332968063146296\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"78","issue":"1","noUsgsAuthors":false,"publicationDate":"1988-02-01","publicationStatus":"PW","scienceBaseUri":"505a2770e4b0c8380cd598b7","contributors":{"authors":[{"text":"Weaver, C.S.","contributorId":57874,"corporation":false,"usgs":true,"family":"Weaver","given":"C.S.","email":"","affiliations":[],"preferred":false,"id":369158,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Baker, G.E.","contributorId":90744,"corporation":false,"usgs":true,"family":"Baker","given":"G.E.","email":"","affiliations":[],"preferred":false,"id":369159,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014436,"text":"70014436 - 1988 - Some revisions to the stratigraphy and structure of the Connecticut Valley trough, eastern Vermont","interactions":[],"lastModifiedDate":"2023-02-08T16:54:44.588808","indexId":"70014436","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":732,"text":"American Journal of Science","active":true,"publicationSubtype":{"id":10}},"title":"Some revisions to the stratigraphy and structure of the Connecticut Valley trough, eastern Vermont","docAbstract":"No abstract available.
","language":"English","publisher":"American Journal of Science","doi":"10.2475/ajs.288.10.1041","usgsCitation":"Hatch, N.L., 1988, Some revisions to the stratigraphy and structure of the Connecticut Valley trough, eastern Vermont: American Journal of Science, v. 288, no. 10, p. 1041-1059, https://doi.org/10.2475/ajs.288.10.1041.","productDescription":"19 p.","startPage":"1041","endPage":"1059","numberOfPages":"19","costCenters":[],"links":[{"id":225511,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Vermont","otherGeospatial":"Connecticut Valley","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -71.51071860113535,\n 44.43870280086662\n ],\n [\n -72.08166446666726,\n 44.43870280086662\n ],\n [\n -72.42604451254395,\n 43.801131907236055\n ],\n [\n -72.65261033219917,\n 43.38763289928579\n ],\n [\n -72.65261033219917,\n 42.81194180774489\n ],\n [\n -72.65261033219917,\n 42.71879640746886\n ],\n [\n -72.39885661418512,\n 42.71879640746886\n ],\n [\n -72.51667084040604,\n 42.8850292180185\n ],\n [\n -72.42604451254395,\n 43.03756885151094\n ],\n [\n -72.38073134861237,\n 43.361283081337376\n ],\n [\n -72.35354345025405,\n 43.558627607731836\n ],\n [\n -72.16322816174325,\n 43.794590625199106\n ],\n [\n -72.02728866995012,\n 44.03614108516527\n ],\n [\n -71.98197550601853,\n 44.29617357536483\n ],\n [\n -71.51071860113535,\n 44.43870280086662\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"288","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b92e4e4b08c986b31a182","contributors":{"authors":[{"text":"Hatch, Norman L. Jr.","contributorId":34926,"corporation":false,"usgs":true,"family":"Hatch","given":"Norman","suffix":"Jr.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":368393,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014113,"text":"70014113 - 1988 - Geothermal gradients in the conterminous United States","interactions":[],"lastModifiedDate":"2024-06-05T16:28:31.93414","indexId":"70014113","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":6453,"text":"Journal of Geophysical Research Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Geothermal gradients in the conterminous United States","docAbstract":"Geothermal gradients from published temperature/depth measurements in drill holes generally deeper than 600 m are used to construct a temperature gradient map of the conterminous United States. The broadly contoured map displays 284 temperature gradients that are applicable to a depth of 2 km. In terms of the number of contoured areas and the fraction of data points having a value not within a contour interval (outliers), the temperature gradient data and associated deep heat flow data have similar measures of contourability. Areally, most of the United States is contoured from 15° to 35°C/km. The eastern United States is generally cooler (average 25°C/km) than the western United States (average 34°C/km), in accordance with broad heat flow trends. Differences between the temperature gradient and heat flow maps are caused by areal differences in rock thermal conductivities. The effect of conductivity on gradients is particularly apparent in the eastern United States where heat flow is relatively constant over large areas. Gradients are elevated where thick, low-conductivity, sedimentary deposits occur such as in the Atlantic Coastal Plain province and in basins in the Allegheny Plateau and the Great Plains provinces. No clear gradient pattern emerges where both heat flow and conductivity vary widely, such as in the northern Basin and Range and Rocky Mountain provinces. Using the temperature gradients determined in this study and associated heat flow values, derived thermal conductivities are calculated for the depth range of a few hundred meters to 2 km; the average conductivity is 2.5±0.8 W/m °C. Some areas show little variation in derived thermal conductivity, while others show a wide range. The Atlantic Coastal Plain, Appalachian Plateaus, Superior Upland, Gulf Coastal Plain, Columbia Plateaus and Cascade Mountains, and Sierra Nevada provinces have restricted ranges of conductivities, which supports the concept of regional conductivities.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB093iB06p06437","issn":"01480227","usgsCitation":"Nathenson, M., and Guffanti, M., 1988, Geothermal gradients in the conterminous United States: Journal of Geophysical Research Solid Earth, v. 93, no. B6, p. 6437-6450, https://doi.org/10.1029/JB093iB06p06437.","productDescription":"14 p.","startPage":"6437","endPage":"6450","numberOfPages":"14","costCenters":[],"links":[{"id":225232,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"B6","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505a28d0e4b0c8380cd5a42e","contributors":{"authors":[{"text":"Nathenson, M.","contributorId":46632,"corporation":false,"usgs":true,"family":"Nathenson","given":"M.","email":"","affiliations":[],"preferred":false,"id":367612,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Guffanti, M.","contributorId":75693,"corporation":false,"usgs":true,"family":"Guffanti","given":"M.","affiliations":[],"preferred":false,"id":367613,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014456,"text":"70014456 - 1988 - Crustal structure of east central Oregon: Relation between Newberry Volcano and regional crustal structure","interactions":[],"lastModifiedDate":"2020-05-07T14:54:37.865133","indexId":"70014456","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Crustal structure of east central Oregon: Relation between Newberry Volcano and regional crustal structure","docAbstract":"A 180-km-long seismic refraction transect from the eastern High Cascades, across Newberry Volcano, to the eastern High Lava Plains is used to investigate the subvolcanic crustal and upper mantle velocity structure there. Near-surface volcanic flows and sedimentary debris (1.6-4.7 km/s), ranging from 3 to 5 km in thickness, overlie subvolcanic Basin and Range structures. East and west of Newberry Volcano, the subvolcanic basement (5.6 km/s) has been downwarped, producing 5-km-deep basins. The midcrust (8- to 28-km depth) is characterized by velocities ranging from 6.1 to 6.5 km/s and varies laterally in thicknesses. The lower crust is characterized by an unusually high velocity (about 7.4 km/s), and its geometry mirrors the subvolcanic basement geometry. The Moho is located at a depth of 37 km and represents a transition to an upper mantle velocity of 8.1 km/s. The shallow subsurface (1.2 km) beneath Newberry Volcano is characterized by high-velocity 5.6 km/s, versus 4.1 km/s for the surrounding area) intrusions and appears to be located on a basement high. Beneath the seismic refraction array at Newberry Volcano, an absence of low-velocity anomalies suggests that large silicic magma chambers do not exist in the upper crust, but apparent high attenuation of the seismic wave field may be consistent with either partial melts in small volumes, elevated crustal temperatures, and/or poor geophone-recording site coupling.
","largerWorkTitle":"","language":"English","publisher":"AGU","doi":"10.1029/JB093iB09p10081","issn":"01480227","usgsCitation":"Catchings, R.D., and Mooney, W.D., 1988, Crustal structure of east central Oregon: Relation between Newberry Volcano and regional crustal structure: Journal of Geophysical Research, v. 93, no. B9, p. 10081-10094, https://doi.org/10.1029/JB093iB09p10081.","productDescription":"14 p.","startPage":"10081","endPage":"10094","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":225833,"rank":0,"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 \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -123.00292968749999,\n 42.924251753870685\n ],\n [\n -118.36669921875,\n 42.924251753870685\n ],\n [\n -118.36669921875,\n 44.5278427984555\n ],\n [\n -123.00292968749999,\n 44.5278427984555\n ],\n [\n -123.00292968749999,\n 42.924251753870685\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"93","issue":"B9","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5059fcece4b0c8380cd4e501","contributors":{"authors":[{"text":"Catchings, R. D.","contributorId":98738,"corporation":false,"usgs":true,"family":"Catchings","given":"R.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":368436,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mooney, Walter D. 0000-0002-5310-3631 mooney@usgs.gov","orcid":"https://orcid.org/0000-0002-5310-3631","contributorId":3194,"corporation":false,"usgs":true,"family":"Mooney","given":"Walter","email":"mooney@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":368435,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014427,"text":"70014427 - 1988 - Three decades of geochronologic studies in the New England Appalachians","interactions":[],"lastModifiedDate":"2023-12-28T00:47:23.85719","indexId":"70014427","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","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":"Three decades of geochronologic studies in the New England Appalachians","docAbstract":"Over the past 30 years, both isotope geochronology and plate tectonics grew from infancy into authoritative disciplines in the geological sciences. Previously, mountain systems like the Appalachians had been viewed almost entirely in the context of the classical geosyncline, implying a gradualism in stratigraphic and structural change throughout the orogen. Age control, determined largely from distant fossiliferous strata, was unabashedly carried to high-grade metamorphic rocks based only on lithological correlations. With the new concepts in tectonics came the realization that abrupt breaks in stratigraphy and structure occur in many cases at the boundaries of lithotectonic zones. Fortunately, the new techniques of isotope geochronology could be brought to bear directly on the rocks of the immediate study area. This paper chronicles some of the major contributions to the geology of the New England Appalachians that resulted from these efforts during the past three decades.
In tracing the history of geochronologic research, one encounters an increasingly sophisticated approach to the analytical and interpretive aspects of the discipline. Today, the geochronologist can, under optimum conditions, constrain the age of stratigraphic units, igneous activity, deformation, and metamorphism with accuracy that is capable of resolving fine structure within individual orogenic pulses. He participates in full partnership with other colleagues of the science in unravelling the mysteries of mountain building. Several of the topical problems of New England geology in which geochronology played a key role include (1) the recognition and delineation of Avalonia as a Late Proterozoic eastern basement distinct from more western terranes, (2) the dating of the White Mountain Plutonic-Volcanic Suite, a Mesozoic igneous event spanning 100 m.y., and (3) the temporal and spatial separation of structural and metamorphic features imprinted by the Taconic and Acadian orogenies.
The existing geochronology is summarized into a map and table emphasizing the temporal construction of the New England Appalachians. By using lithotectonic zones as the building blocks of the orogen, seven such zones are defined in terms of pre-, syn-, and post-assembly geologic history. From west to east, these lithotectonic zones are (1) Berkshire-Green Mountain, (2) Rowe-Hawley, (3) Connecticut Valley, (4) Bronson Hill, (5) Kearsarge-Central Maine, (6) Tatnic Hill-Nashoba, and (7) Avalonia. Avalonia is further divided into three subzones, Hope Valley, Esmond-Dedham, and Penobscot Bay, which themselves may have had distinct origins and assembly histories. The boundaries between these zones are faults in most cases, some of which may have had recurring movement to further complicate any plate-tectonic scenario.
A delineation of underlying Grenvillian, Chain Lakes, and Avalonian basement is also attempted, which now can make use of isotopes in igneous rocks as petrogenetic indicators to supplement the rare occurrences of basement outcrop within mobile zones of the orogen. The belt of Permian thermal disturbance within the Kearsarge-Central Maine zone is hypothesized to reflect rapid rebound following compressional thickening of underlying Avalonian basement during the Alleghanian orogeny.
","language":"English","publisher":"Geological Society of America","doi":"10.1130/0016-7606(1988)100<1168:TDOGSI>2.3.CO;2","usgsCitation":"Zartman, R., 1988, Three decades of geochronologic studies in the New England Appalachians: Geological Society of America Bulletin, v. 100, no. 8, p. 1168-1180, https://doi.org/10.1130/0016-7606(1988)100<1168:TDOGSI>2.3.CO;2.","productDescription":"13 p.","startPage":"1168","endPage":"1180","numberOfPages":"13","costCenters":[],"links":[{"id":225378,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -81.63967460992868,\n 37.399849628117494\n ],\n [\n -69.51076835992886,\n 37.399849628117494\n ],\n [\n -69.51076835992886,\n 45.732269412431236\n ],\n [\n -81.63967460992868,\n 45.732269412431236\n ],\n [\n -81.63967460992868,\n 37.399849628117494\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"100","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb307e4b08c986b325b34","contributors":{"authors":[{"text":"Zartman, R. E.","contributorId":15632,"corporation":false,"usgs":true,"family":"Zartman","given":"R. E.","affiliations":[],"preferred":false,"id":368375,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014379,"text":"70014379 - 1988 - Geometry of Upper Cretaceous bentonite beds: Implications about volcanic source areas and paleowind patterns, western interior, United States","interactions":[],"lastModifiedDate":"2024-01-26T01:15:55.438934","indexId":"70014379","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Geometry of Upper Cretaceous bentonite beds: Implications about volcanic source areas and paleowind patterns, western interior, United States","docAbstract":"Four bentonite beds near the Cenomanian-Turonian Stage boundary (ca. 90 Ma) can be traced through much of the western interior of the United States. Isopach maps constructed for these bentonite beds indicate that volcanic source areas were positioned both northwest and southwest of the central U.S. western interior basin and also indicate both easterly and southeasterly paleowind directions. Volcanism of this age has not been reported previously in the southern source area.
Estimates of the depth to the Curie temperature isotherm in Nevada are in accordance with other regional geologic and geophysical information and together can be explained in the context of present-day tectonism. A method to estimate the depth extent of magnetic sources from the statistical properties of magnetic anomalies was applied to a statewide compilation of aeromagnetic data from Nevada. Basal depths of magnetic sources show no apparent correlation with the so-called magnetic quiet zone, which trends northerly through the eastern part of the state, or with basin-and-range topography. However, certain correlations with published heat flow measurements are apparent and suggest that undulations in basal depth of magnetic sources are related in part to undulations in the Curie temperature isotherm. For example, an area of shallow basal depth (<10 km) near Battle Mountain corresponds to an area of exceptionally high conductive heat flow and indicates a shallow depth to the Curie temperature isotherm in this region. A narrow zone of shallow basal depth extends south from the Battle Mountain area along the 118°W meridian to at least latitude 38°N, which also is a zone of historic surface offsets and high-magnitude earthquakes. The correspondence along the 118° meridian of shallow basal depth, high heat flow, high lower crustal seismic velocities, attenuated P and S wave arrivals, historic faulting, and large earthquakes suggests that they each are related to an active north trending spreading zone in this part of the Basin and Range province.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB093iB10p11817","issn":"01480227","usgsCitation":"Blakely, R., 1988, Curie temperature isotherm analysis and tectonic implications of aeromagnetic data from Nevada: Journal of Geophysical Research Solid Earth, v. 93, no. B10, p. 11817-11832, https://doi.org/10.1029/JB093iB10p11817.","productDescription":"16 p.","startPage":"11817","endPage":"11832","costCenters":[],"links":[{"id":225243,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"B10","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"5059fd0de4b0c8380cd4e5e6","contributors":{"authors":[{"text":"Blakely, R.J. 0000-0003-1701-5236","orcid":"https://orcid.org/0000-0003-1701-5236","contributorId":70755,"corporation":false,"usgs":true,"family":"Blakely","given":"R.J.","affiliations":[],"preferred":false,"id":368086,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70013709,"text":"70013709 - 1988 - Origin and influence of coal mine drainage on streams of the United States","interactions":[],"lastModifiedDate":"2012-03-12T17:18:32","indexId":"70013709","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1540,"text":"Environmental Geology and Water Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Origin and influence of coal mine drainage on streams of the United States","docAbstract":"Degradation of water quality related to oxidation of iron disulfide minerals associated with coal is a naturally occurring process that has been observed since the late seventeenth century, many years before commencement of commercial coal mining in the United States. Disturbing coal strata during mining operations accelerates this natural deterioration of water quality by exposing greater surface areas of reactive minerals to the weathering effects of the atmosphere, hydrosphere, and biosphere. Degraded water quality in the temperate eastern half of the United States is readily detected because of the low mineralization of natural water. Maps are presented showing areas in the eastern United States where concentrations of chemical constituents in water affected by coal mining (pH, dissolved sulfate, total iron, total manganese) exceed background values and indicate effects of coal mining. Areas in the East most affected by mine drainage are in western Pennsylvania, southern Ohio, western Maryland, West Virginia, southern Illinois, western Kentucky, northern Missouri, and southern Iowa. Effects of coal mining on water quality in the more arid western half of the United States are more difficult to detect because of the high degree of mineralization of natural water. Normal background concentrations of constituents are not useful in evaluating effects of coal mine drainage on streams in the more arid West. Three approaches to reduce the effects of coal mining on water quality are: (1) exclusion of oxygenated water from reactive minerals, (2) neutralization of the acid produced, (3) retardation of acid-producing bacteria population in spoil material, by application of detergents that do not produce byproducts requiring disposal. These approaches can be used to help prevent further degradation of water quality in streams by future mining. ?? 1988 Springer-Verlag New York Inc.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology and Water Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisherLocation":"Springer-Verlag","doi":"10.1007/BF02580450","issn":"00990094","usgsCitation":"Powell, J.D., 1988, Origin and influence of coal mine drainage on streams of the United States: Environmental Geology and Water Sciences, v. 11, no. 2, p. 141-152, https://doi.org/10.1007/BF02580450.","startPage":"141","endPage":"152","numberOfPages":"12","costCenters":[],"links":[{"id":205050,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/BF02580450"},{"id":220661,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a70b7e4b0c8380cd761c5","contributors":{"authors":[{"text":"Powell, J. D.","contributorId":29828,"corporation":false,"usgs":true,"family":"Powell","given":"J.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":366687,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70013665,"text":"70013665 - 1988 - Downslope Eulerian mean flow associated with high-frequency current fluctuations observed on the outer continental shelf and upper slope along the northeastern United States continental margin: Implications for sediment transport","interactions":[],"lastModifiedDate":"2023-11-30T00:51:20.658789","indexId":"70013665","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1333,"text":"Continental Shelf Research","active":true,"publicationSubtype":{"id":10}},"title":"Downslope Eulerian mean flow associated with high-frequency current fluctuations observed on the outer continental shelf and upper slope along the northeastern United States continental margin: Implications for sediment transport","docAbstract":"Eulerian current measurements made 5-7 m above bottom at six stations along the United States east coast continental margin show a net downslope flow of 1-5 cm s-1. Although the scalar current speed decreases with water depth and toward the bottom, fluctuations in the cross-isobath flow were stronger and increasingly asymmetric near the bottom. Maximum downslope flow exceeded maximum upslope flow by a factor of two to three. The strength of the low-passed downslope flow was proportional to the upslope Reynolds flux of density as well as to the amplitude of the current fluctuations that have periods shorter than 30 h. These flow characteristics may be caused by differential vertical mixing in the bottom boundary layer where a stratified fluid flows upslope (unstable) and downslope (stable). The asymmetry in current strength clearly favors net downslope transport of sediments that move as bedload. ?? 1988.","language":"English","publisher":"Elsevier","doi":"10.1016/0278-4343(88)90078-7","issn":"02784343","usgsCitation":"Butman, B., 1988, Downslope Eulerian mean flow associated with high-frequency current fluctuations observed on the outer continental shelf and upper slope along the northeastern United States continental margin: Implications for sediment transport: Continental Shelf Research, v. 8, no. 5-7, p. 811-840, https://doi.org/10.1016/0278-4343(88)90078-7.","productDescription":"30 p.","startPage":"811","endPage":"840","numberOfPages":"30","costCenters":[],"links":[{"id":219933,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"5-7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a03b4e4b0c8380cd50605","contributors":{"authors":[{"text":"Butman, B.","contributorId":85580,"corporation":false,"usgs":true,"family":"Butman","given":"B.","email":"","affiliations":[],"preferred":false,"id":366588,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70013656,"text":"70013656 - 1988 - Geochemistry of groundwater in tertiary and cretaceous sediments of the southeastern Coastal Plain in eastern Georgia, South Carolina, and southeastern North Carolina","interactions":[],"lastModifiedDate":"2018-02-19T17:56:27","indexId":"70013656","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"Geochemistry of groundwater in tertiary and cretaceous sediments of the southeastern Coastal Plain in eastern Georgia, South Carolina, and southeastern North Carolina","docAbstract":"Geochemical samples of groundwater taken along hydrologic flow paths in eastern Georgia, South Carolina, and southeastern North Carolina, from noncalcareous sand aquifers, largely of Cretaceous age, are dominated by sodium and bicarbonate ions. Calcareous sand aquifers, largely of Tertiary age, contain water whose chemistry is dominated by calcium and bicarbonate ions, but may evolve downgradient to sodium and bicarbonate dominance. Water chemistry in both types of aquifer evolves to sodium chloride dominance as a result of fresh water mixing with subsurface brines or seawater present in the deeper downgradient parts of the aquifers. Principal aqueous chemical reactions appear to occur in five reaction zones in the aquifers and include feldspar hydrolysis to kaolinite, calcite dissolution, calcium-for-sodium cation exchange, and neoformation of sodium smectite in the downgradient parts of the aquifers. Redox reactions produce dissolved iron concentrations greater than 1 mg/L near the recharge areas. Organic matter in the aquifers is oxidized to CO2 by iron reduction and sulfate reduction processes. Production of CO2 by a methanogenic process may also occur. Geochemical mass-transfer models simulating the observed chemistry in western Alabama and eastern Mississippi have been extended to account for higher concentrations of sodium and bicarbonate observed in the South Carolina part of the aquifers.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/WR024i002p00291","usgsCitation":"Lee, R.W., and Strickland, D.J., 1988, Geochemistry of groundwater in tertiary and cretaceous sediments of the southeastern Coastal Plain in eastern Georgia, South Carolina, and southeastern North Carolina: Water Resources Research, v. 24, no. 2, p. 291-303, https://doi.org/10.1029/WR024i002p00291.","productDescription":"13 p.","startPage":"291","endPage":"303","costCenters":[{"id":13634,"text":"South Atlantic Water Science Center","active":true,"usgs":true}],"links":[{"id":219816,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Georgia, North Carolina, South Carolina","otherGeospatial":"Coastal Plain","volume":"24","issue":"2","noUsgsAuthors":false,"publicationDate":"2010-07-09","publicationStatus":"PW","scienceBaseUri":"505a16fbe4b0c8380cd55337","contributors":{"authors":[{"text":"Lee, Roger W.","contributorId":105273,"corporation":false,"usgs":true,"family":"Lee","given":"Roger","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":366572,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Strickland, Donald J.","contributorId":106560,"corporation":false,"usgs":true,"family":"Strickland","given":"Donald","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":366571,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70014817,"text":"70014817 - 1988 - The mechanics and three-dimensional internal structure of active magmatic systems: Kilauea volcano, Hawaii","interactions":[],"lastModifiedDate":"2024-05-30T16:53:03.963401","indexId":"70014817","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":6453,"text":"Journal of Geophysical Research Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"The mechanics and three-dimensional internal structure of active magmatic systems: Kilauea volcano, Hawaii","docAbstract":"Interpretation of abundant seismic data suggests that Kilauea's primary conduit within the upper mantle is concentrically zoned to about 34-km depth. This zoned structure is inferred to contain a central core region of relatively higher permeability, surrounded by numerous dikes that are in intermittent hydraulic communication with each other and with the central core. During periods of relatively high magma transport, the entire cross section of the conduit is utilized. During periods of relatively low to moderate transport, however, only the central core is active. As the conduit penetrates the oceanic crust and enters the volcanic shield, it simultaneously supplies the deeper sections of the rift zones (6-to 10-km depth) and the roots of the summit reservoir with picritic magma. The rift zones at depth are inferred to be almost wholly molten and to possess a high degree of fluid continuity from Heiheiahulu in the East Rift Zone, 45 km westward through the roots of the summit magma reservoir, and well into the Southwest Rift Zone. Higher in the shield, the subcaldera magma reservoir and the shallow rift zones occupy the 2-to 4-km depth interval. Summit-differentiated olivine tholeiite (ρ ≈ 2.62 g cm−3) is periodically injected laterally along a horizon of neutral buoyancy within the rift zones, where the density of the magma is just balanced by the in situ density of the shield (Ryan, 1987a, b). Deep rift zone intrusions push seaward the deep tectonic blocks of the volcano's south flank. Shallow rift intrusions build a sheeted dike complex, inferred to be in isostatic equilibrium with the higher-density deep rift cores below. General finite element analyses are presented for the deformation and stress fields surrounding such dikes in the horizontal and vertical planes. The dike tip in two and three dimensions is surrounded by a tubular core of tensile (σ1, σ2) and shear stress (τmax). The displacement field is characterized by counterrotating cells on either side of the dike tip which, in vertical orientation, produce the characteristic subsidence above the dike complex, with uplift on either side, forming a ridge-trough-ridge structure. A finite element model of Kilauea's shield computes the displacement fields and principal stress (σ1) distributions resulting from intrusive activity on each or both of the rift zones. Within the summit region, tensile stress lobes produced by the three-dimensional upward extension of the intrusions superpose constructively to produce calderawide regimes of tensile stress, conducive to caldera development. Parametric studies of (1) intrusion in the East Rift Zone only, (2) intrusion in the Southwest Rift Zone only, and (3) intrusion in both rift zones demonstrate their unique kinematic contributions. For case 1, the caldera undergoes a counterclockwise rotation (torque up state) conducive to the development of rightstepping en echelon eruptive fissures, as exemplified by the August 14, 1971, eruption. For case 2, the caldera undergoes a clockwise rotation (torque down state) conducive to the development of left-stepping eruptive fissures, as occurred during the December 31, 1974, eruption. For case 3, the caldera substructure is driven due southward, producing the southward migration of the upper portions of the summit magma reservoir.
","language":"English","publisher":"American Geophysical Union","doi":"10.1029/JB093iB05p04213","issn":"01480227","usgsCitation":"Ryan, M., 1988, The mechanics and three-dimensional internal structure of active magmatic systems: Kilauea volcano, Hawaii: Journal of Geophysical Research Solid Earth, v. 93, no. B5, p. 4213-4248, https://doi.org/10.1029/JB093iB05p04213.","productDescription":"36 p.","startPage":"4213","endPage":"4248","numberOfPages":"36","costCenters":[],"links":[{"id":226183,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"B5","noUsgsAuthors":false,"publicationDate":"2012-09-20","publicationStatus":"PW","scienceBaseUri":"505badc3e4b08c986b323dd3","contributors":{"authors":[{"text":"Ryan, M.P.","contributorId":30754,"corporation":false,"usgs":true,"family":"Ryan","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":369357,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70014159,"text":"70014159 - 1988 - Crustal velocities near Coalinga, California, modeled from a combined earthquake/explosion refraction profile","interactions":[],"lastModifiedDate":"2023-10-28T13:54:34.951633","indexId":"70014159","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Crustal velocities near Coalinga, California, modeled from a combined earthquake/explosion refraction profile","docAbstract":"Crustal velocity structure for the region near Coalinga, California, has been derived from both earthquake and explosion seismic phase data recorded along a NW-SE seismic-refraction profile on the western flank of the Great Valley east of the Diablo Range. Comparison of the two data sets reveals P-wave phases in common which can be correlated with changes in the velocity structure below the earthquake hypocenters. In addition, the earthquake records reveal secondary phases at station ranges of less than 20 km that could be the result of S- to P-wave conversions at velocity interfaces above the earthquake hypocenters. Two-dimensional ray-trace modeling of the P-wave travel times resulted in a P-wave velocity model for the western flank of the Great Valley comprised of: (a) a 7- to 9-km-thick section of sedimentary strata with velocities similar to those found elsewhere in the Great Valley (1.6 to 5.2 km/sec); (b) a middle crust extending to about 14 km depth with velocities comparable to those reported for the Franciscan assemblage in the Diablo Range (5.6 to 5.9 km/sec); and (c) a 13- to 14-km-thick lower crust with velocities similar to those reported beneath the Diablo Range and the Great Valley (6.5 to 7.30 km/sec). This lower crust may have been derived from subducted oceanic crust that was thickened by accretionary underplating or crustal shortening.
","language":"English","publisher":"Seismological Society of America","doi":"10.1785/BSSA0780041475","usgsCitation":"Macgregor-Scott, N., and Walter, A., 1988, Crustal velocities near Coalinga, California, modeled from a combined earthquake/explosion refraction profile: Bulletin of the Seismological Society of America, v. 78, no. 4, p. 1475-1490, https://doi.org/10.1785/BSSA0780041475.","productDescription":"16 p.","startPage":"1475","endPage":"1490","numberOfPages":"16","costCenters":[],"links":[{"id":422234,"rank":2,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.geoscienceworld.org/ssa/bssa/article/78/4/1475/119055/Crustal-velocities-near-Coalinga-California"},{"id":226135,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","city":"Coalinga","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"coordinates\": [\n [\n [\n -120.8651283104765,\n 36.48539391147344\n ],\n [\n -120.8651283104765,\n 35.84012693048392\n ],\n [\n -119.69233778313293,\n 35.84012693048392\n ],\n [\n -119.69233778313293,\n 36.48539391147344\n ],\n [\n -120.8651283104765,\n 36.48539391147344\n ]\n ]\n ],\n \"type\": \"Polygon\"\n }\n }\n ]\n}","volume":"78","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fcf2e4b0c8380cd4e530","contributors":{"authors":[{"text":"Macgregor-Scott, N.","contributorId":19715,"corporation":false,"usgs":true,"family":"Macgregor-Scott","given":"N.","affiliations":[],"preferred":false,"id":367746,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walter, A.","contributorId":42720,"corporation":false,"usgs":true,"family":"Walter","given":"A.","affiliations":[],"preferred":false,"id":367747,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1003767,"text":"1003767 - 1988 - Post-epizootic surveys of waterfowl for duck plague (duck virus enteritis)","interactions":[],"lastModifiedDate":"2023-01-12T12:21:06.942571","indexId":"1003767","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":948,"text":"Avian Diseases","active":true,"publicationSubtype":{"id":10}},"title":"Post-epizootic surveys of waterfowl for duck plague (duck virus enteritis)","docAbstract":"Surviving birds from nine duck plague outbreaks in urban and confined waterfowl were sampled for duck plague (DP) virus and DP antibody during 1979-86. Duck plague virus was found in combined oral and cloacal swabs of birds from three outbreaks, and DP-neutralizing antibody was demonstrated in some birds from all nine outbreaks. Greater prevalence of DP antibody and higher titers were found in survivors from confined populations than from free-flying urban populations. Free-flying waterfowl from within 52 km of four DP outbreak sites were also sampled; virus was not found in any birds, but DP antibody was found in urban waterfowl in the vicinity of an outbreak in Potterville, Michigan. No evidence of exposure to or shedding of DP virus in migratory waterfowl was found in two regions where DP appears enzootic in urban and confined waterfowl (Eastern Shore of Maryland and the vicinity of Sacramento, California).
","language":"English","publisher":"American Association of Avian Pathologists","doi":"10.2307/1590991","usgsCitation":"Brand, C.J., and Docherty, D.E., 1988, Post-epizootic surveys of waterfowl for duck plague (duck virus enteritis): Avian Diseases, v. 32, no. 4, p. 722-730, https://doi.org/10.2307/1590991.","productDescription":"9 p.","startPage":"722","endPage":"730","numberOfPages":"9","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":129544,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -91.241455078125,\n 43.74728909225906\n ],\n [\n -86.099853515625,\n 43.52465500687185\n ],\n [\n -83.16650390625,\n 43.27720532212024\n ],\n [\n -82.90283203125,\n 42.42345651793833\n ],\n [\n -83.111572265625,\n 41.795888098191426\n ],\n [\n -84.44091796875,\n 40.95501133048621\n ],\n [\n -84.6826171875,\n 39.740986355883564\n ],\n [\n -87.451171875,\n 39.49556336059472\n ],\n [\n -91.351318359375,\n 39.68182601089365\n ],\n [\n -91.636962890625,\n 40.3130432088809\n ],\n [\n -91.329345703125,\n 40.9052096972736\n ],\n [\n -91.19750976562499,\n 41.51680395810118\n ],\n [\n -90.703125,\n 41.672911819602085\n ],\n [\n -90.47241210937499,\n 41.94314874732696\n ],\n [\n -91.14257812499999,\n 42.64204079304428\n ],\n [\n -91.241455078125,\n 43.74728909225906\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"32","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4ad5e4b07f02db683ac4","contributors":{"authors":[{"text":"Brand, C. J.","contributorId":8788,"corporation":false,"usgs":true,"family":"Brand","given":"C.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":314220,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Docherty, D. E.","contributorId":83469,"corporation":false,"usgs":true,"family":"Docherty","given":"D.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":314221,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":1007841,"text":"1007841 - 1988 - Fixed-wing airplane versus helicopter surveys of manatees (Trichechus manatus)","interactions":[],"lastModifiedDate":"2024-09-27T15:28:34.356106","indexId":"1007841","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2671,"text":"Marine Mammal Science","active":true,"publicationSubtype":{"id":10}},"title":"Fixed-wing airplane versus helicopter surveys of manatees (Trichechus manatus)","docAbstract":"The abundance of manatees, as with most marine mammals, is difficult to determine because they are visible for only short periods of time while at the surface of the water (Eberhardt et al. 1979, Powell et al. 1981). Aerial surveys are generally considered to be the most accurate method of counting manatees, although there is no doubt that some undetermined proportion is missed (Irvine and Campbell 1978, Shane 1981, Kinnaird 1985, Packard et al. 1985). When designing aerial censuses for manatees two types of aircraft are usually considered: fixed-wing and rotary-wing airplanes (Irvine 1982). Fixed-wing airplanes normally are used because helicopters are prohibitively expensive to hire (often over twice that of a fixed-wing airplane). Helicopters, however, have been assumed to yield more accurate counts for manatees (personal observations; J. Fletemeyer and J. Provancha, personal communication) because their slower air speed and greater maneuverability reduce the proportion of animals missed due to some of the biases inherent in fixed-wing airplane counts (Caughley 1974). To assess how effective fixed-wing aircraft are in determining the number of manatees in an area, a series of paired total-count aerial surveys were done in winter 1978-79.
A Bell 47G helicopter was used to obtain a “count” to compare with counts made from a Cessna 172 fixed, high-wing airplane. The experiment was conducted at two different sites and on five consecutive days at each site. The first location was Crystal River, which is a clear, spring-fed river that flows about11 km into the Gulf of Mexico on the central west coast of Florida. The second site was an 8-km-long section of the Indian River, which is a large, turbid estuary adjacent to Cape Canaveral on the east coast of Florida.
","language":"English","publisher":"Wiley","doi":"10.1111/j.1748-7692.1988.tb00185.x","usgsCitation":"Rathbun, G.B., 1988, Fixed-wing airplane versus helicopter surveys of manatees (Trichechus manatus): Marine Mammal Science, v. 4, no. 1, p. 71-75, https://doi.org/10.1111/j.1748-7692.1988.tb00185.x.","productDescription":"5 p.","startPage":"71","endPage":"75","costCenters":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"links":[{"id":130574,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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\"}}]}","volume":"4","issue":"1","noUsgsAuthors":false,"publicationDate":"2006-08-26","publicationStatus":"PW","scienceBaseUri":"4f4e49f2e4b07f02db5ef2e5","contributors":{"authors":[{"text":"Rathbun, Galen B.","contributorId":17571,"corporation":false,"usgs":true,"family":"Rathbun","given":"Galen","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":316125,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70137558,"text":"70137558 - 1988 - Causes of varied sediment gravity flow types on the Alsek Prodelta, northeast Gulf of Alaska","interactions":[],"lastModifiedDate":"2015-01-09T08:55:27","indexId":"70137558","displayToPublicDate":"1988-01-01T00:00:00","publicationYear":"1988","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2670,"text":"Marine Geotechnology","active":true,"publicationSubtype":{"id":10}},"title":"Causes of varied sediment gravity flow types on the Alsek Prodelta, northeast Gulf of Alaska","docAbstract":"Slope failures and subsequent mass movements have been identified in Holocene glaciomarine sediment on declivities less than 1.3° on the Alsek prodelta, Gulf of Alaska. Isolated collapse features cover less than 10 percent of a nearshore sand deposit, in water depths less than 40 m. In contrast, sediment gravity flow deposits (disintegrative failures) cover more than 95 percent of a clayey silt deposit that is located in water depths between 35 m and 80 m. The morphology of individual disintegrative failures in the prodelta clayey silt indicates an eastward increase in the internal deformation and downslope translation of the failed sediment mass, the most extreme deformations being relatively large linear depressions up to 6‐m deep, 400‐m wide, and 1800‐m long, extending downslope in the easternmost part of the study area.
\n\n
In‐place cone penetration tests show that the nearshore sand is dense and is probably not highly susceptible to cyclic strength degradation and ultimate slope failure. The isolated collapse features are thought to result from the slope failure of more susceptible clayey silt that underlies the sand, sampled in nearby vibracores.
\n\n
The generation of disintegrative failures on the Alsek prodelta involves a drained conversion of the sediment (pore‐water influx) from an in‐place dense condition (State II) to an expanded condition (State I) during storm‐wave loading. Without this conversion, only nondisintegrative failures, typified by limited internal deformation or minor downslope translation of the failed sediment mass are possible. Higher porosity, underconsolidated, clayey silt of the eastern part of the study area is more susceptible to conversion from State II to State I than is the denser, normally consolidated, clayey silt of the western part of the study area. This trend in the porosity and consolidation state of the sediment is expressed as the eastward increase in the internal deformation and downslope translation of disintegrative failures.
","language":"English","publisher":"Taylor and Francis","doi":"10.1080/10641198809388224","usgsCitation":"Schwab, W.C., Lee, H., and Molnia, B.F., 1988, Causes of varied sediment gravity flow types on the Alsek Prodelta, northeast Gulf of Alaska: Marine Geotechnology, v. 7, no. 4, p. 317-342, https://doi.org/10.1080/10641198809388224.","productDescription":"26 p.","startPage":"317","endPage":"342","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true}],"links":[{"id":297091,"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 -152.4462890625,\n 59.866883195210214\n ],\n [\n -140.2734375,\n 60.6301017662667\n ],\n [\n -136.80175781249997,\n 57.80965135970151\n ],\n [\n -152.8857421875,\n 56.31653672211301\n ],\n [\n -152.4462890625,\n 59.866883195210214\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"7","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"54dd2b4fe4b08de9379b330f","contributors":{"authors":[{"text":"Schwab, William C. 0000-0001-9274-5154 bschwab@usgs.gov","orcid":"https://orcid.org/0000-0001-9274-5154","contributorId":417,"corporation":false,"usgs":true,"family":"Schwab","given":"William","email":"bschwab@usgs.gov","middleInitial":"C.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":537898,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, Homa J. hjlee@usgs.gov","contributorId":1021,"corporation":false,"usgs":true,"family":"Lee","given":"Homa J.","email":"hjlee@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":537899,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Molnia, Bruce F. bmolnia@usgs.gov","contributorId":4002,"corporation":false,"usgs":true,"family":"Molnia","given":"Bruce","email":"bmolnia@usgs.gov","middleInitial":"F.","affiliations":[{"id":410,"text":"National Center","active":false,"usgs":true}],"preferred":false,"id":537900,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ]}