{"pageNumber":"3499","pageRowStart":"87450","pageSize":"25","recordCount":184938,"records":[{"id":1016202,"text":"1016202 - 1998 - Influence of habitat on behavior of Towndsend's ground squirrels (Spermophilus townsendii)","interactions":[],"lastModifiedDate":"2024-06-25T11:20:20.034954","indexId":"1016202","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2373,"text":"Journal of Mammalogy","onlineIssn":"1545-1542","printIssn":"0022-2372","active":true,"publicationSubtype":{"id":10}},"title":"Influence of habitat on behavior of Towndsend's ground squirrels (Spermophilus townsendii)","docAbstract":"<p class=\"chapter-para\">Trade-offs between foraging and predator avoidance may affect an animal's survival and reproduction. These trade-offs may be influenced by differences in vegetative cover, especially if foraging profitability and predation risk differ among habitats. We examined above-ground activity of Townsend's ground squirrels (<i>Spermophilus townsendii</i>) in four habitats in the Snake River Birds of Prey National Conservation Area in southwestern Idaho to determine if behavior of ground squirrels varied among habitats, and we assessed factors that might affect perceived predation risk (i.e. predator detectability, predation pressure, population density). The proportion of time spent in vigilance by ground squirrels in winterfat (<i>Krascheninnikovia lanata</i>) and mosaic habitats of winterfat-sagebrush (<i>Artemisia tridentata</i>) was more than twice that of ground squirrels in burned and unburned sagebrush habitats. We found no evidence for the “many-eyes” hypothesis as an explanation for differences in vigilance among habitats. Instead, environmental heterogeneity, especially vegetation structure, likely influenced activity budgets of ground squirrels. Differences in vigilance may have been caused by differences in predator detectability and refuge availability, because ground squirrels in the winterfat and mosaic habitats also spent more time in upright vigilant postures than ground squirrels in burned-sagebrush or sagebrush habitats. Such postures may enhance predator detection in low-growing winterfat.</p>","language":"English","publisher":"Oxford Academic","doi":"10.2307/1383098","usgsCitation":"Sharpe, P., and Van Horne, B., 1998, Influence of habitat on behavior of Towndsend's ground squirrels (Spermophilus townsendii): Journal of Mammalogy, v. 79, no. 3, p. 906-918, https://doi.org/10.2307/1383098.","productDescription":"13 p.","startPage":"906","endPage":"918","numberOfPages":"13","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":134267,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"79","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e49f0e4b07f02db5ee275","contributors":{"authors":[{"text":"Sharpe, Peter B.","contributorId":93451,"corporation":false,"usgs":true,"family":"Sharpe","given":"Peter B.","affiliations":[],"preferred":false,"id":323727,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Horne, Beatrice","contributorId":59001,"corporation":false,"usgs":true,"family":"Van Horne","given":"Beatrice","email":"","affiliations":[],"preferred":false,"id":323726,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1016571,"text":"1016571 - 1998 - [Book review] The tallgrass restoration handbook: For prairies, savannas, and woodlands, by Stephen Packard and Cornelia F. Mutel","interactions":[],"lastModifiedDate":"2017-12-27T13:12:36","indexId":"1016571","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1859,"text":"Great Plains Research","active":true,"publicationSubtype":{"id":10}},"title":"[Book review] The tallgrass restoration handbook: For prairies, savannas, and woodlands, by Stephen Packard and Cornelia F. Mutel","docAbstract":"The Tallgrass Restoration Handbook: For Prairies, Savannas, and Woodlands edited by Stephen Packard and Cornelia F. Mutel.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Great Plains Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Center for Great Plains Studies","publisherLocation":"Lincoln, NE","usgsCitation":"Johnson, D.H., 1998, [Book review] The tallgrass restoration handbook: For prairies, savannas, and woodlands, by Stephen Packard and Cornelia F. Mutel: Great Plains Research, v. 8, no. 2, p. 339-341.","productDescription":"3 p.","startPage":"339","endPage":"341","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":131626,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":268118,"type":{"id":11,"text":"Document"},"url":"https://digitalcommons.unl.edu/greatplainsresearch/404/"}],"volume":"8","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a60e4b07f02db635363","contributors":{"authors":[{"text":"Johnson, Douglas H. 0000-0002-7778-6641","orcid":"https://orcid.org/0000-0002-7778-6641","contributorId":70327,"corporation":false,"usgs":true,"family":"Johnson","given":"Douglas","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":324401,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70764,"text":"ofr9898 - 1998 - A workbook for preparing a district quality- assurance plan for water-quality activities","interactions":[],"lastModifiedDate":"2012-02-02T00:13:44","indexId":"ofr9898","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"98-98","title":"A workbook for preparing a district quality- assurance plan for water-quality activities","docAbstract":"APPEARS TO BE A REPORT ON HOW TO WRITE REPORTS --THE 'ABSTRACT' THAT FOLLOWS IS JUST THE GENERIC ABSTRACT TO BE USED FOR WATER USE REPORTS:  In accordance with guidelines set forth by the Office of Water Quality in the Water Resources Division of the U.S. Geological Survey, a quality-assurance plan has been created for use by the [State name] District in conducting water-quality activities. This quality-assurance plan documents the standards, policies, and procedures used by the [State name] District for activities related to the collection, processing, storage, analysis, and publication of water-quality data. The policies and procedures that are documented in this quality-assurance plan for water-quality activities are meant to complement the District quality-assurance plans for surface-water and ground-water activities and to supplement the [State name] District quality-assurance plan.","language":"ENGLISH","doi":"10.3133/ofr9898","usgsCitation":"Schertz, T.L., Childress, C.J., Kelly, V.J., Boucher, M.S., and Pederson, G.L., 1998, A workbook for preparing a district quality- assurance plan for water-quality activities (Revised June 2002): U.S. Geological Survey Open-File Report 98-98, 75 p., ill., https://doi.org/10.3133/ofr9898.","productDescription":"75 p., ill.","costCenters":[],"links":[{"id":6595,"rank":100,"type":{"id":15,"text":"Index Page"},"url":"https://water.usgs.gov/owq/QAfolder/QA.index.html","linkFileType":{"id":5,"text":"html"}},{"id":185574,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"}],"edition":"Revised June 2002","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b15e4b07f02db6a4d5d","contributors":{"authors":[{"text":"Schertz, Terry L. tschertz@usgs.gov","contributorId":188,"corporation":false,"usgs":true,"family":"Schertz","given":"Terry","email":"tschertz@usgs.gov","middleInitial":"L.","affiliations":[{"id":583,"text":"Texas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":283001,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Childress, Carolyn J.O.","contributorId":43044,"corporation":false,"usgs":true,"family":"Childress","given":"Carolyn","email":"","middleInitial":"J.O.","affiliations":[],"preferred":false,"id":283003,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kelly, Valerie J. vjkelly@usgs.gov","contributorId":4161,"corporation":false,"usgs":true,"family":"Kelly","given":"Valerie","email":"vjkelly@usgs.gov","middleInitial":"J.","affiliations":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true}],"preferred":true,"id":283002,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Boucher, Michelle S.","contributorId":71192,"corporation":false,"usgs":true,"family":"Boucher","given":"Michelle","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":283004,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pederson, Gary L.","contributorId":81084,"corporation":false,"usgs":true,"family":"Pederson","given":"Gary","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":283005,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":93865,"text":"93865 - 1998 - Effects of management practices on grassland birds: Sedge Wren","interactions":[],"lastModifiedDate":"2017-10-05T10:26:21","indexId":"93865","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Effects of management practices on grassland birds: Sedge Wren","docAbstract":"<p>Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 5,500 published and unpublished papers. A range map is provided to indicate the relative densities of the species in North America, based on Breeding Bird Survey (BBS) data. Although birds frequently are observed outside the breeding range indicated, the maps are intended to show areas where managers might concentrate their attention. It may be ineffectual to manage habitat at a site for a species that rarely occurs in an area. The species account begins with a brief capsule statement, which provides the fundamental components or keys to management for the species. A section on breeding range outlines the current breeding distribution of the species in North America, including areas that could not be mapped using BBS data. The suitable habitat section describes the breeding habitat and occasionally microhabitat characteristics of the species, especially those habitats that occur in the Great Plains. Details on habitat and microhabitat requirements often provide clues to how a species will respond to a particular management practice. A table near the end of the account complements the section on suitable habitat, and lists the specific habitat characteristics for the species by individual studies. A special section on prey habitat is included for those predatory species that have more specific prey requirements. The area requirements section provides details on territory and home range sizes, minimum area requirements, and the effects of patch size, edges, and other landscape and habitat features on abundance and productivity. It may be futile to manage a small block of suitable habitat for a species that has minimum area requirements that are larger than the area being managed. The Brown-headed Cowbird (<i>Molothrus ater</i>) is an obligate brood parasite of many grassland birds. The section on cowbird brood parasitism summarizes rates of cowbird parasitism, host responses to parasitism, and factors that influence parasitism, such as nest concealment and host density. The impact of management depends, in part, upon a species' nesting phenology and biology. The section on breeding-season phenology and site fidelity includes details on spring arrival and fall departure for migratory populations in the Great Plains, peak breeding periods, the tendency to renest after nest failure or success, and the propensity to return to a previous breeding site. The duration and timing of breeding varies among regions and years. Species' response to management summarizes the current knowledge and major findings in the literature on the effects of different management practices on the species. The section on management recommendations complements the previous section and summarizes specific recommendations for habitat management provided in the literature. If management recommendations differ in different portions of the species' breeding range, recommendations are given separately by region. The literature cited contains references to published and unpublished literature on the management effects and habitat requirements of the species. This section is not meant to be a complete bibliography; for a searchable, annotated bibliography of published and unpublished papers dealing with habitat needs of grassland birds and their responses to habitat management, use the <a href=\"http://www.npwrc.usgs.gov/resource/literatr/grasbird/index.htm#bibsearch\" target=\"_blank\">Grassland and Wetland Birds Bibliography</a> on the home page of this resource.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Effects of management practices on grassland birds","largerWorkSubtype":{"id":9,"text":"Other Report"},"language":"English","publisher":"U.S. Geological Survey, Northern Prairie Wildlife Research Center","publisherLocation":"Jamestown, ND","doi":"10.3133/93865","usgsCitation":"Dechant, J., Sondreal, M.L., Johnson, D.H., Igl, L.D., Goldade, C., Parkin, B., and Euliss, B., 1998, Effects of management practices on grassland birds: Sedge Wren (Originally posted 1998, revised 2002), 16 p., https://doi.org/10.3133/93865.","productDescription":"16 p.","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":292288,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/93865.PNG"},{"id":311617,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/unnumbered/93865/report.pdf","linkFileType":{"id":1,"text":"pdf"}}],"edition":"Originally posted 1998, revised 2002","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a29e4b07f02db611be6","contributors":{"authors":[{"text":"Dechant, Jill A. 0000-0003-3172-0708","orcid":"https://orcid.org/0000-0003-3172-0708","contributorId":103984,"corporation":false,"usgs":true,"family":"Dechant","given":"Jill A.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":298122,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sondreal, Marriah L.","contributorId":73532,"corporation":false,"usgs":true,"family":"Sondreal","given":"Marriah","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":298119,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnson, Douglas H. 0000-0002-7778-6641 douglas_h_johnson@usgs.gov","orcid":"https://orcid.org/0000-0002-7778-6641","contributorId":1387,"corporation":false,"usgs":true,"family":"Johnson","given":"Douglas","email":"douglas_h_johnson@usgs.gov","middleInitial":"H.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":298116,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Igl, Lawrence D. 0000-0003-0530-7266 ligl@usgs.gov","orcid":"https://orcid.org/0000-0003-0530-7266","contributorId":2381,"corporation":false,"usgs":true,"family":"Igl","given":"Lawrence","email":"ligl@usgs.gov","middleInitial":"D.","affiliations":[{"id":480,"text":"Northern Prairie Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":298117,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Goldade, Christopher M.","contributorId":90668,"corporation":false,"usgs":true,"family":"Goldade","given":"Christopher M.","affiliations":[],"preferred":false,"id":298120,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Parkin, Barry D.","contributorId":98249,"corporation":false,"usgs":true,"family":"Parkin","given":"Barry D.","affiliations":[],"preferred":false,"id":298121,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Euliss, Betty R.","contributorId":58218,"corporation":false,"usgs":true,"family":"Euliss","given":"Betty R.","affiliations":[{"id":39297,"text":"former U.S. Geological Survey employee","active":true,"usgs":false}],"preferred":false,"id":298118,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70020828,"text":"70020828 - 1998 - Groundwater geochemistry of Isla de Mona, Puerto Rico","interactions":[],"lastModifiedDate":"2012-03-12T17:19:37","indexId":"70020828","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2201,"text":"Journal of Cave and Karst Studies","active":true,"publicationSubtype":{"id":10}},"title":"Groundwater geochemistry of Isla de Mona, Puerto Rico","docAbstract":"In this study, we explore the differences between the hydrogeochemical processes observed in a setting that is open to input from the land surface and in a setting that is closed with respect to input from the land surface. The closed setting was a water-filled passage in a cave. Samples of groundwater and of a solid that appeared to be suspended in the relatively fresh region of saline-freshwater mixing zone were collected. The solid was determined to be aragonite. Based on the analyses of the composition and saturation state of the groundwater, the mixing of fresh and saline water and precipitation of aragonite are the controlling geochemical processes in this mixing zone. We found no evidence of sulfate reduction. Thus, this mixing zone is similar to that observed in Caleta Xel Ha, Quintana Roo, also a system that is closed with respect to input from the land surface. The open setting was an unconfined aquifer underlying the coastal plain along which four hand-dug wells are located. Two wells are at the downgradient ends of inferred flowpaths and one is along a flowpath. The composition of the groundwater in the downgradient wells is sulfide-rich and brackish. In contrast, at the well located along a flow line, the groundwater is oxygenated and brackish. All groundwater is oversaturated with respect to calcite, aragonite, and dolomite. The composition is attributed to mixing of fresh and saline groundwater, CO2 outgassing, and sulfate reduction. This mixing zone is geochemically similar to that observed in blue holes and cenotes.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Cave and Karst Studies","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"10906924","usgsCitation":"Wicks, C., and Troester, J., 1998, Groundwater geochemistry of Isla de Mona, Puerto Rico: Journal of Cave and Karst Studies, v. 60, no. 2, p. 107-114.","startPage":"107","endPage":"114","numberOfPages":"8","costCenters":[],"links":[{"id":229718,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2da6e4b0c8380cd5bf83","contributors":{"authors":[{"text":"Wicks, C.M.","contributorId":86132,"corporation":false,"usgs":true,"family":"Wicks","given":"C.M.","email":"","affiliations":[],"preferred":false,"id":387678,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Troester, J.W.","contributorId":90750,"corporation":false,"usgs":true,"family":"Troester","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":387679,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020827,"text":"70020827 - 1998 - Age and sex identification of Akohekohe","interactions":[],"lastModifiedDate":"2018-01-04T13:14:57","indexId":"70020827","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2284,"text":"Journal of Field Ornithology","active":true,"publicationSubtype":{"id":10}},"title":"Age and sex identification of Akohekohe","docAbstract":"<p>We present methods to determine the age and sex of Akohekohe (<i>Palmeria dolei</i>), an endangered Hawaiian honeycreeper, developed on the basis of 45 museum specimens and 91 live birds captured on the island of Maui. Akohekohe retained all Juvenal primaries, some Juvenal secondaries, and some body feathers after the first prebasic molt; they attained full adult plumage after the second prebasic molt. Retention of brown Juvenal body feathers, especially on the head, distinguished most birds in the first basic plumage from adults, which have a full complement of distinctive, black lanceolate body feathers with white, gray, or orange tips. Male Akohekohe were heavier than females and had longer wing, tail, and tarsometatarsus lengths. We present a linear discriminant function to sex both adults and juveniles using lengths of their wing and tarsometatarsus.</p>","language":"English","publisher":"Northeastern Bird-Banding Association","publisherLocation":"Ipswich, NH","issn":"02738570","usgsCitation":"Simon, J.C., Pratt, T., Berlin, K.E., and Kowalsky, J.R., 1998, Age and sex identification of Akohekohe: Journal of Field Ornithology, v. 69, no. 4, p. 654-660.","productDescription":"7 p.","startPage":"654","endPage":"660","costCenters":[{"id":521,"text":"Pacific Island Ecosystems Research Center","active":false,"usgs":true}],"links":[{"id":229680,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e8e2e4b0c8380cd47f44","contributors":{"authors":[{"text":"Simon, John C.","contributorId":71673,"corporation":false,"usgs":true,"family":"Simon","given":"John","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":387677,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pratt, T.K.","contributorId":13717,"corporation":false,"usgs":true,"family":"Pratt","given":"T.K.","email":"","affiliations":[],"preferred":false,"id":387674,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Berlin, Kim E.","contributorId":70522,"corporation":false,"usgs":true,"family":"Berlin","given":"Kim","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":387676,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kowalsky, James R.","contributorId":54707,"corporation":false,"usgs":true,"family":"Kowalsky","given":"James","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":387675,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70021034,"text":"70021034 - 1998 - A laboratory exercise in experimental bioimmuration","interactions":[],"lastModifiedDate":"2024-05-07T16:40:34.341166","indexId":"70021034","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2324,"text":"Journal of Geoscience Education","active":true,"publicationSubtype":{"id":10}},"title":"A laboratory exercise in experimental bioimmuration","docAbstract":"<p><span>A paleobiology laboratory exercise using lunch meat, cheeses, and condiments provides a means for studying a method of fossil preservation called “bioimmuration.” The exercise also has students deal with problems associated with other aspects of taphonomy, taxonomy, and paleoecology.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.5408/1089-9995-46.2.182","issn":"10899995","usgsCitation":"Mankiewicz, C., 1998, A laboratory exercise in experimental bioimmuration: Journal of Geoscience Education, v. 46, no. 2, p. 182-186, https://doi.org/10.5408/1089-9995-46.2.182.","productDescription":"5 p.","startPage":"182","endPage":"186","numberOfPages":"5","costCenters":[],"links":[{"id":230206,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"2","noUsgsAuthors":false,"publicationDate":"2018-01-31","publicationStatus":"PW","scienceBaseUri":"5059e42de4b0c8380cd46488","contributors":{"authors":[{"text":"Mankiewicz, C.","contributorId":37102,"corporation":false,"usgs":true,"family":"Mankiewicz","given":"C.","email":"","affiliations":[],"preferred":false,"id":388368,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70020596,"text":"70020596 - 1998 - Soil relative dating of moraine and outwash-terrace sequences in the northern part of the upper Arkansas Valley, central Colorado, U.S.A.","interactions":[],"lastModifiedDate":"2023-03-06T16:48:03.555908","indexId":"70020596","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":898,"text":"Arctic and Alpine Research","active":true,"publicationSubtype":{"id":10}},"title":"Soil relative dating of moraine and outwash-terrace sequences in the northern part of the upper Arkansas Valley, central Colorado, U.S.A.","docAbstract":"Profile development indices for soils developed in moraines and outwash near Twin Lakes and in outwash near Leadville support the correlation of moraines with subdued morphology and two high outwash terraces with the Bull Lake glaciation (ca. 130-160 ka) and the correlation of hummocky moraines and two low outwash terraces with the Pinedale glaciation (ca. 14-47 ka). Elsewhere in the northern part of the upper Arkansas Valley, glacial sequences are correlated by mapping outwash terraces near the mouths of major tributaries of the Arkansas River. Near Twin Lakes, indices for soils on low, outer lateral moraines suggest that the older Pinedale glaciers extended beyond the margin of high, younger Pinedale lateral moraines with hummocky topography. A few subdued moraines near Twin Lakes and Leadville probably record one or more glaciations significantly older than the Bull Lake. The downvalley extent of Pinedale glaciers in the Mosquito Range on the east side of the Arkansas Valley is uncertain: most likely, Pinedale glaciers were almost as extensive as Bull Lake glaciers but built no prominent terminal moraines at their maximum positions.","language":"English","publisher":"Taylor & Francis","doi":"10.2307/1552007","usgsCitation":"Nelson, A.R., and Shroba, R.R., 1998, Soil relative dating of moraine and outwash-terrace sequences in the northern part of the upper Arkansas Valley, central Colorado, U.S.A.: Arctic and Alpine Research, v. 30, no. 4, p. 349-361, https://doi.org/10.2307/1552007.","productDescription":"13 p.","startPage":"349","endPage":"361","numberOfPages":"13","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":231377,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Colorado","otherGeospatial":"Upper Arkansas Valley","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -106.55424916680141,\n              39.35315747091269\n            ],\n            [\n              -106.55424916680141,\n              38.485816551002046\n            ],\n            [\n              -105.87672158145713,\n              38.485816551002046\n            ],\n            [\n              -105.87672158145713,\n              39.35315747091269\n            ],\n            [\n              -106.55424916680141,\n              39.35315747091269\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"30","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9215e4b08c986b319cba","contributors":{"authors":[{"text":"Nelson, Alan R. 0000-0001-7117-7098 anelson@usgs.gov","orcid":"https://orcid.org/0000-0001-7117-7098","contributorId":812,"corporation":false,"usgs":true,"family":"Nelson","given":"Alan","email":"anelson@usgs.gov","middleInitial":"R.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":386813,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shroba, Ralph R. 0000-0002-2664-1813 rshroba@usgs.gov","orcid":"https://orcid.org/0000-0002-2664-1813","contributorId":1266,"corporation":false,"usgs":true,"family":"Shroba","given":"Ralph","email":"rshroba@usgs.gov","middleInitial":"R.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":386812,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020567,"text":"70020567 - 1998 - Evidence at Lomax, Illinois, for mid-Wisconsin (~40,000 yr B.P.) position of the Des Moines Lobe and for diversion of the Mississippi River by the Lake Michigan Lobe (20,350 yr B.P.)","interactions":[],"lastModifiedDate":"2012-03-12T17:20:16","indexId":"70020567","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Evidence at Lomax, Illinois, for mid-Wisconsin (~40,000 yr B.P.) position of the Des Moines Lobe and for diversion of the Mississippi River by the Lake Michigan Lobe (20,350 yr B.P.)","docAbstract":"An abrupt change in environment from a wetland to a deeper slackwater lake at 20,345 ?? 85 yr B.P. occurred in a second-order valley tributary to the Mississippi River near Lomax, Illinois. The age of this shift is associated with the overflow of glacial Lake Milan and diversion of the Mississippi River from the Princeton Valley (Rock Island to Peoria) to its present course (Rock Island to St. Louis). The diversion occurred due to blockage of the Princeton Valley segment of the ancient Mississippi River by the Lake Michigan Lobe, impoundment of glacial Lake Milan, and eventual overflow of the lake southwest of Rock Island across a former drainage divide near Andalusia, Illinois. Fossil ostracode assemblages in the slackwater sediment at Lomax indicate changes in the post-diversion, full-glacial paleohydrology and, based on multivariate analysis, hint at the area's paleoclimate. An older part of the succession at Lomax is consistent with glaciation in the upper Iowa River basin about 40,000 yr B.P. Aggradation of sediment rich in coarse silt is attributed to a response of the ancient Iowa River basin associated with deposition of the glacigenic Sheldon Creek Formation by the Des Moines Lobe.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1006/qres.1998.1985","issn":"00335894","usgsCitation":"Curry, B.B., 1998, Evidence at Lomax, Illinois, for mid-Wisconsin (~40,000 yr B.P.) position of the Des Moines Lobe and for diversion of the Mississippi River by the Lake Michigan Lobe (20,350 yr B.P.): Quaternary Research, v. 50, no. 2, p. 128-138, https://doi.org/10.1006/qres.1998.1985.","startPage":"128","endPage":"138","numberOfPages":"11","costCenters":[],"links":[{"id":206988,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1006/qres.1998.1985"},{"id":231494,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"50","issue":"2","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a0d28e4b0c8380cd52e49","contributors":{"authors":[{"text":"Curry, B. Brandon","contributorId":104224,"corporation":false,"usgs":true,"family":"Curry","given":"B.","email":"","middleInitial":"Brandon","affiliations":[],"preferred":false,"id":386719,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70021033,"text":"70021033 - 1998 - Re-evaluation and extension of the scope of elements in US Geological Survey Standard Reference Water Samples","interactions":[],"lastModifiedDate":"2018-02-15T12:52:03","indexId":"70021033","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":759,"text":"Analyst","active":true,"publicationSubtype":{"id":10}},"title":"Re-evaluation and extension of the scope of elements in US Geological Survey Standard Reference Water Samples","docAbstract":"More than 100 US Geological Survey (USGS) Standard Reference Water Samples (SRWSs) were analyzed for numerous trace constituents, including Al, As, B, Ba, Be, Bi, Br, Cd, Cr, Co, Cu, I, Fe, Pb, Li, Mn, Mo, Ni, Rb, Sb, Se, Sr, Te, Tl, U, V, Zn and major elements (Ca, Mg, Na, SiO2, SO4, Cl) by inductively coupled plasma mass spectrometry and inductively coupled plasma atomic emission spectrometry. In addition, 15 USGS SRWSs and National Institute of Standards and Technology (NIST) standard reference material (SRM) 1641b were analyzed for mercury using cold vapor atomic fluorescence spectrometry. Also USGS SRWS Hg-7 was analyzed using isotope dilution-inductively coupled plasma mass spectrometry. The results were compared with the reported certified values of the following standard reference materials: NIST SRM 1643a, 1643b, 1643c and 1643d and National Research Council of Canada Riverine Water Reference Materials for Trace Metals SLRS-1, SLRS-2 and SLRS-3. New concentration values for trace and major elements in the SRWSs, traceable to the certified standards, are reported. Additional concentration values are reported for elements that were neither previously published for the SRWSs nor traceable to the certified reference materials. Robust statistical procedures were used that were insensitive to outliers. These data can be used for quality assurance/quality control purposes in analytical laboratories.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Analyst","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1039/a706350d","issn":"00032654","usgsCitation":"Peart, D., Antweiler, R.C., Taylor, H.E., Roth, D., and Brinton, T., 1998, Re-evaluation and extension of the scope of elements in US Geological Survey Standard Reference Water Samples: Analyst, v. 123, no. 3, p. 455-476, https://doi.org/10.1039/a706350d.","startPage":"455","endPage":"476","numberOfPages":"22","costCenters":[],"links":[{"id":230168,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206544,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1039/a706350d"}],"volume":"123","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9570e4b0c8380cd819fa","contributors":{"authors":[{"text":"Peart, D.B.","contributorId":45304,"corporation":false,"usgs":true,"family":"Peart","given":"D.B.","email":"","affiliations":[],"preferred":false,"id":388364,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Antweiler, Ronald C. 0000-0001-5652-6034 antweil@usgs.gov","orcid":"https://orcid.org/0000-0001-5652-6034","contributorId":1481,"corporation":false,"usgs":true,"family":"Antweiler","given":"Ronald","email":"antweil@usgs.gov","middleInitial":"C.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":388365,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Taylor, Howard E. hetaylor@usgs.gov","contributorId":1551,"corporation":false,"usgs":true,"family":"Taylor","given":"Howard","email":"hetaylor@usgs.gov","middleInitial":"E.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":388363,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Roth, D.A.","contributorId":100864,"corporation":false,"usgs":true,"family":"Roth","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":388367,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brinton, T.I.","contributorId":93922,"corporation":false,"usgs":true,"family":"Brinton","given":"T.I.","affiliations":[],"preferred":false,"id":388366,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70020831,"text":"70020831 - 1998 - Tephra-fall deposits from the 1992 eruption of Crater Peak, Alaska: implications of clast textures for eruptive processes","interactions":[],"lastModifiedDate":"2012-03-12T17:19:37","indexId":"70020831","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1109,"text":"Bulletin of Volcanology","active":true,"publicationSubtype":{"id":10}},"title":"Tephra-fall deposits from the 1992 eruption of Crater Peak, Alaska: implications of clast textures for eruptive processes","docAbstract":"The 1992 eruption of Crater Peak, Mount Spurr, Alaska, involved three subplinian tephra-producing events of similar volume and duration. The tephra consists of two dense juvenile clast types that are identified by color, one tan and one gray, of similar chemistry, mineral assemblage, and glass composition. In two of the eruptive events, the clast types are strongly stratified with tan clasts dominating the basal two thirds of the deposits and gray clasts the upper one third. Tan clasts have average densities between 1.5 and 1.7 g/cc and vesicularities (phenocryst free) of approximately 42%. Gray clasts have average densities between 2.1 and 2.3 g/cc, and vesicularities of approximately 20%; both contain abundant microlites. Average maximum plagioclase microlite lengths (13-15 ??m) in gray clasts in the upper layer are similar regardless of eruptive event (and therefore the repose time between them) and are larger than average maximum plagioclase microlite lengths (9-11 ???m) in the tan clasts in the lower layer. This suggests that microlite growth is a response to eruptive processes and not to magma reservoir heterogeneity or dynamics. Furthermore, we suggest that the low vesicularities of the clasts are due to syneruptive magmatic degassing resulting in microlitic growth prior to fragmentation and not to quenching of clasts by external groundwater.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of Volcanology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s004450050208","issn":"02588900","usgsCitation":"Gardner, C.A., Cashman, K.V., and Neal, C., 1998, Tephra-fall deposits from the 1992 eruption of Crater Peak, Alaska: implications of clast textures for eruptive processes: Bulletin of Volcanology, v. 59, no. 8, p. 537-555, https://doi.org/10.1007/s004450050208.","startPage":"537","endPage":"555","numberOfPages":"19","costCenters":[],"links":[{"id":229757,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206437,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s004450050208"}],"volume":"59","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba544e4b08c986b320920","contributors":{"authors":[{"text":"Gardner, C. A.","contributorId":75916,"corporation":false,"usgs":true,"family":"Gardner","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":387687,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cashman, K. V.","contributorId":16831,"corporation":false,"usgs":true,"family":"Cashman","given":"K.","email":"","middleInitial":"V.","affiliations":[],"preferred":false,"id":387686,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Neal, C.A. 0000-0002-7697-7825","orcid":"https://orcid.org/0000-0002-7697-7825","contributorId":91122,"corporation":false,"usgs":true,"family":"Neal","given":"C.A.","affiliations":[],"preferred":false,"id":387688,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70020598,"text":"70020598 - 1998 - Proxy of monsoon seasonality in carbon isotopes from paleosols of the southern Chinese Loess Plateau","interactions":[],"lastModifiedDate":"2024-01-12T14:47:48.017904","indexId":"70020598","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1796,"text":"Geology","active":true,"publicationSubtype":{"id":10}},"title":"Proxy of monsoon seasonality in carbon isotopes from paleosols of the southern Chinese Loess Plateau","docAbstract":"<div id=\"15578168\" class=\"article-section-wrapper js-article-section js-content-section  \" data-section-parent-id=\"0\"><p>Soil organic matter (SOM) and soil carbonate (SC) are common constituents in soils and are directly related to plant growth. SOM accumulates gradually from the decomposition of plant material over time, whereas SC formation is biased to dry-season soil-dissolved CO<sub>2</sub><span>&nbsp;</span>that derives from plant respiration during a drying phase of the growing season. In some mixed C<sub>3</sub>-C<sub>4</sub><span>&nbsp;</span>environments, the peak of C<sub>3</sub><span>&nbsp;</span>and C<sub>4</sub><span>&nbsp;</span>plant metabolism differs seasonally, and the carbon source that contributes to the SOM and SC can be different. Consequently, δ<sup>13</sup><sub>SOM</sub><span>&nbsp;</span>values reflect an annual average of the floral biomass, but δ<sup>13</sup><sub>SC</sub><span>&nbsp;</span>values reflect a seasonal aspect of the plant community. The relationship between δ<sup>13</sup>C<sub>SC</sub><span>&nbsp;</span>and δ<sup>13</sup>C<sub>SOM</sub><span>&nbsp;</span>is mainly controlled by how different the seasonal conditions are. Our results suggest that the relationship is a seasonal proxy that can be used to differentiate the seasonality effects of Indian, East Asian, and Siberian monsoons on the Chinese Loess Plateau during the last interglacial-glacial cycle.</p></div>","language":"English","publisher":"Geological Society of America","doi":"10.1130/0091-7613(1998)026<0987:POMSIC>2.3.CO;2","issn":"00917613","usgsCitation":"Wang, H., and Follmer, L., 1998, Proxy of monsoon seasonality in carbon isotopes from paleosols of the southern Chinese Loess Plateau: Geology, v. 26, no. 11, p. 987-990, https://doi.org/10.1130/0091-7613(1998)026<0987:POMSIC>2.3.CO;2.","productDescription":"4 p.","startPage":"987","endPage":"990","numberOfPages":"4","costCenters":[],"links":[{"id":231379,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8fbfe4b0c8380cd7f936","contributors":{"authors":[{"text":"Wang, Hongfang","contributorId":92635,"corporation":false,"usgs":true,"family":"Wang","given":"Hongfang","email":"","affiliations":[],"preferred":false,"id":386820,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Follmer, L.R.","contributorId":19294,"corporation":false,"usgs":true,"family":"Follmer","given":"L.R.","email":"","affiliations":[],"preferred":false,"id":386819,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020933,"text":"70020933 - 1998 - Upper Paleocene and lowermost Eocene angiosperm pollen biostratigraphy of the eastern Gulf Coast and Virginia","interactions":[],"lastModifiedDate":"2012-03-12T17:19:47","indexId":"70020933","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2735,"text":"Micropaleontology","active":true,"publicationSubtype":{"id":10}},"title":"Upper Paleocene and lowermost Eocene angiosperm pollen biostratigraphy of the eastern Gulf Coast and Virginia","docAbstract":"Strata comprising most of the upper Paleocene in eastern North America are divided into two new pollen zones, the Carya and Platycarya platycaryoides Interval Zones. Pollen data have proven to be important for correlations between Alabama-western Georgia and eastern Mississippi and between the eastern Gulf Coast and Virginia. Migration of tropical plant taxa from the Caribbean to the Gulf Coast began at least 4 m.y. before the end of the Paleocene. The Terminal Paleocene Extinction Event, accompanied by a distinct pulse of plant immigration from Europe, began several hundred thousand years before the end of the Paleocene.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Micropaleontology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00262803","usgsCitation":"Frederiksen, N.O., 1998, Upper Paleocene and lowermost Eocene angiosperm pollen biostratigraphy of the eastern Gulf Coast and Virginia: Micropaleontology, v. 44, no. 1, p. 45-68.","startPage":"45","endPage":"68","numberOfPages":"24","costCenters":[],"links":[{"id":229924,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbd45e4b08c986b328f42","contributors":{"authors":[{"text":"Frederiksen, N. O.","contributorId":78356,"corporation":false,"usgs":true,"family":"Frederiksen","given":"N.","email":"","middleInitial":"O.","affiliations":[],"preferred":false,"id":388015,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70020832,"text":"70020832 - 1998 - Tracing hydrologic pathways using chloride at the Panola mountain research watershed, Georgia, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:19:37","indexId":"70020832","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3728,"text":"Water, Air, & Soil Pollution","onlineIssn":"1573-2932","printIssn":"0049-6979","active":true,"publicationSubtype":{"id":10}},"title":"Tracing hydrologic pathways using chloride at the Panola mountain research watershed, Georgia, USA","docAbstract":"An analysis of chloride (Cl-) concentrations and fluxes at the 41 ha Panola Mountain Research Watershed indicates that Cl- may be used effectively to differentiate 'new' and 'old' water flow through the hillslope and their respective contributions to streamwater. Rainfall and throughfall, the 'new' water inputs, are marked by low Cl- concentrations (<15 ??eq L-1). Stormwater moves rapidly to depth along preferred pathways in a deciduous forest hillslope, as evidenced by low Cl- concentrations (<20 ??eq L-1) in mobile soil water from zero-tension stainless-steel pan lysimeters. 'Old' waters, matrix soil waters and groundwater, typically have high Cl- concentrations (>30 ??eq L-1). Timing of soil water transport is not sufficiently rapid to suggest that soil water from this hillslope site (20 m from the stream) contributes to streamwater during individual rainstorms. The source of streamflow, therefore, must be a combination of channel interception, overland flow and soil water from nearchannel areas, and run off from a 3 ha bedrock outcrop in the headwaters Groundwater contribution to streamflow was estimated using Cl- concentrations of throughfall and groundwater as the two end members for a two-component hydrograph separation. For the study period, groundwater contributed 79% of the streamflow and from 1985 to 1995, contributed 75% of the streamflow. Rainfall was the source of 45% of the Cl- flux from the watershed in the long term; the remaining Cl- is hypothesized to be derived from dry deposition, consistent with the enrichment noted for throughfall. At peak flow during individual rainstorms, 'new' water can contribute 95% of the runoff.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Water, Air, and Soil Pollution","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Kluwer Academic Publishers","publisherLocation":"Dordrecht, Netherlands","doi":"10.1023/A:1005082332332","issn":"00496979","usgsCitation":"Peters, N., and Ratcliffe, E., 1998, Tracing hydrologic pathways using chloride at the Panola mountain research watershed, Georgia, USA: Water, Air, & Soil Pollution, v. 105, no. 1-2, p. 263-275, https://doi.org/10.1023/A:1005082332332.","startPage":"263","endPage":"275","numberOfPages":"13","costCenters":[],"links":[{"id":229758,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206438,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1005082332332"}],"volume":"105","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb694e4b08c986b326d59","contributors":{"authors":[{"text":"Peters, N.E.","contributorId":33332,"corporation":false,"usgs":true,"family":"Peters","given":"N.E.","email":"","affiliations":[],"preferred":false,"id":387689,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ratcliffe, E.B.","contributorId":33857,"corporation":false,"usgs":true,"family":"Ratcliffe","given":"E.B.","email":"","affiliations":[],"preferred":false,"id":387690,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020605,"text":"70020605 - 1998 - Introduction to special section: Stress triggers, stress shadows, and implications for seismic hazard","interactions":[],"lastModifiedDate":"2024-07-19T14:05:45.804246","indexId":"70020605","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Introduction to special section: Stress triggers, stress shadows, and implications for seismic hazard","docAbstract":"<p><span>Many aspects of earthquake mechanics remain an enigma as we enter the closing years of the twentieth century. One potential bright spot is the realization that simple calculations of stress changes may explain some earthquake interactions, just as previous and on going studies of stress changes have begun to explain human-induced seismicity. This paper, which introduces the special section “Stress Triggers, Stress Shadows, and Implications for Seismic Hazard,” reviews many published works and presents a compilation of quantitative earthquake interaction studies from a stress change perspective. This synthesis supplies some clues about certain aspects of earthquake mechanics. It also demonstrates that much work remains before we can understand the complete story of how earthquakes work.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/98JB01576","issn":"01480227","usgsCitation":"Harris, R., 1998, Introduction to special section: Stress triggers, stress shadows, and implications for seismic hazard: Journal of Geophysical Research B: Solid Earth, v. 103, no. 10, p. 24347-24358, https://doi.org/10.1029/98JB01576.","productDescription":"12 p.","startPage":"24347","endPage":"24358","numberOfPages":"12","costCenters":[],"links":[{"id":479743,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/98jb01576","text":"Publisher Index Page"},{"id":231499,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"103","issue":"10","noUsgsAuthors":false,"publicationDate":"1998-10-10","publicationStatus":"PW","scienceBaseUri":"505a3df4e4b0c8380cd639a9","contributors":{"authors":[{"text":"Harris, R.A. 0000-0002-9247-0768","orcid":"https://orcid.org/0000-0002-9247-0768","contributorId":41849,"corporation":false,"usgs":true,"family":"Harris","given":"R.A.","affiliations":[],"preferred":false,"id":386840,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70020806,"text":"70020806 - 1998 - Rapid toxicity assessment of sediments from estuarine ecosystems: A new tandem in vitro testing approach","interactions":[],"lastModifiedDate":"2018-03-29T11:11:20","indexId":"70020806","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Rapid toxicity assessment of sediments from estuarine ecosystems: A new tandem in vitro testing approach","docAbstract":"<p><span>Microtox® and Mutatox® were used to evaluate the acute toxicity and genotoxicity, respectively, of organic sediment extracts from Pensacola Bay and St. Andrew Bay, two estuaries that cover about 273 and 127 km</span><sup>2</sup><span>, respectively, along the Gulf coast of Florida, USA. The sensitivity and selectivity of these two bioluminescent toxicity assays were demonstrated in validation studies with over 50 pesticides, genotoxins, and industrial pollutants, both as single compounds and in complex mixtures. The 50% effective concentration (EC50) values of insecticides, petroleum products, and polychlorinated biphenyls determined by Microtox all tended to group around the mean EC50 value of 1.2 (0.8) mg/L. The polycyclic aromatic hydrocarbon sensitivity of Mutatox was in general similar to that reported in the Ames test. Surficial sediment samples were collected, extracted with dichloromethane, evaporated and concentrated under nitrogen, dissolved in dimethyl sulfoxide, assayed for acute toxicity and genotoxicity, and compared with reference sediments. Samples with low EC50 values, and determined to be genotoxic, were detected in Massalina Bayou, Watson Bayou, East Bay, and St. Andrew Bay–East in St. Andrew Bay as well as Bayou Grande, Bayou Chico, and Bayou Texar in Pensacola Bay. An overview of these data sets analyzed by Spearman rank correlation showed a significant correlation between acute toxicity and genotoxicity (</span><i>p</i><span><span>&nbsp;</span>&lt; 0.05). Microtox and Mutatox in tandem was a sensitive, cost‐effective, and rapid (&lt;24 h) screening tool that identified troublesome areas of pollution and assessed the potential sediment toxicity of lipophilic contaminants in aquatic ecosystems.</span></p>","language":"English","publisher":"SETAC","doi":"10.1897/1551-5028(1998)017<1099:RTAOSF>2.3.CO;2","usgsCitation":"Johnson, B., and Long, E.R., 1998, Rapid toxicity assessment of sediments from estuarine ecosystems: A new tandem in vitro testing approach: Environmental Toxicology and Chemistry, v. 17, no. 6, p. 1099-1106, https://doi.org/10.1897/1551-5028(1998)017<1099:RTAOSF>2.3.CO;2.","productDescription":"8 p.","startPage":"1099","endPage":"1106","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":229994,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"17","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9501e4b0c8380cd81757","contributors":{"authors":[{"text":"Johnson, B. Thomas","contributorId":105101,"corporation":false,"usgs":true,"family":"Johnson","given":"B. Thomas","affiliations":[],"preferred":false,"id":387593,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Long, Edward R.","contributorId":106365,"corporation":false,"usgs":true,"family":"Long","given":"Edward","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":387592,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020607,"text":"70020607 - 1998 - Noble gases, stable isotopes, and radiocarbon as tracers of flow in the Dakota aquifer, Colorado and Kansas","interactions":[],"lastModifiedDate":"2012-03-12T17:19:42","indexId":"70020607","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Noble gases, stable isotopes, and radiocarbon as tracers of flow in the Dakota aquifer, Colorado and Kansas","docAbstract":"A suite of chemical and isotope tracers (dissolved noble gases, stable isotopes of water, radiocarbon, and CI) have been analyzed along a flow path in the Dakota aquifer system to determine likely recharge sources, ground water residence times, and the extent of mixing between local and intermediate flow systems, presumably caused by large well screens. Three water types were distinguished with the tracers, each having a very different history. Two of the water types were found in south-eastern Colorado where the Dakota is poorly confined. The tracer data suggest that the first group recharged locally during the last few thousand years and the second group was composed of ground water that recharged earlier during a cooler climate, presumably during the last glacial period (LGP) and mixed aged water. The paleotemperature record archived in this groundwater system indicates that south-eastern Colorado was about 5??C cooler during the LGP than during the late Holocene. Similar temperature changes derived from dissolved noble gases in other aquifer systems have been reported earlier for the south-western United States. The third water type was located down gradient of the first two in the confined Dakota in western and central Kansas. Groundwater residence time of this water mass is on the order of 104-105 yrs and its recharge location is near the Colorado and Kansas border down gradient of the other water types. The study shows the importance of using multiple tracers when investigating ground water systems.A suite of chemical and isotope tracers (dissolved noble gases, stable isotopes of water, radiocarbon, and CL) were analyzed along a flow path in the Dakota aquifer system to determine likely recharge sources, ground water residence times, and the extent of mixing between local and intermediate flow systems. Three water types were distinguished with the tracers, each having a very different history. Two of the water types were located in south-eastern Colorado where the Dakota is poorly confined. The third water type was located down gradient of the first two in the confined Dakota in western and central Kansas.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier Sci B.V.","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/S0022-1694(98)00233-9","issn":"00221694","usgsCitation":"Clark, J., Davisson, M., Hudson, G., and Macfarlane, P.A., 1998, Noble gases, stable isotopes, and radiocarbon as tracers of flow in the Dakota aquifer, Colorado and Kansas: Journal of Hydrology, v. 211, no. 1-4, p. 151-167, https://doi.org/10.1016/S0022-1694(98)00233-9.","startPage":"151","endPage":"167","numberOfPages":"17","costCenters":[],"links":[{"id":487330,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://escholarship.org/uc/item/3wz4z3z0","text":"External Repository"},{"id":206840,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0022-1694(98)00233-9"},{"id":230913,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"211","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6724e4b0c8380cd731d5","contributors":{"authors":[{"text":"Clark, J.F.","contributorId":24124,"corporation":false,"usgs":true,"family":"Clark","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":386845,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davisson, M.L.","contributorId":62277,"corporation":false,"usgs":true,"family":"Davisson","given":"M.L.","email":"","affiliations":[],"preferred":false,"id":386847,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hudson, G.B.","contributorId":28768,"corporation":false,"usgs":true,"family":"Hudson","given":"G.B.","email":"","affiliations":[],"preferred":false,"id":386846,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Macfarlane, P. A.","contributorId":14597,"corporation":false,"usgs":true,"family":"Macfarlane","given":"P.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":386844,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020836,"text":"70020836 - 1998 - A technique for estimating the accuracy of fish locations identified by radiotelemetry","interactions":[],"lastModifiedDate":"2024-04-03T11:20:29.091934","indexId":"70020836","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2299,"text":"Journal of Freshwater Ecology","active":true,"publicationSubtype":{"id":10}},"title":"A technique for estimating the accuracy of fish locations identified by radiotelemetry","docAbstract":"<div class=\"hlFld-Abstract\"><p class=\"last\">Radiotelemetry is a useful tool to describe habitat use by fish, but studies may inaccurately describe microhabitat use due to failure to account for errors when identifying fish locations. We developed a technique that identifies the extent of location errors of a hand-held radiotelemetry system. The ranges of location errors were determined among different observers, between land and water, and at an array of distances (5—125 m) between transmitters and receivers. No significant differences occurred among three observers at distances of 100 m or less or between transmitters on land or in water. Location error increased significantly with distance between transmitter and receiver; mean error was 0.5 m at 5 m and 4.5 m at 100 m. The 95th percentile of location errors was 1.5 m at 5 m and 10.5 m at 100 m. The number of trials needed to define location errors within 20% of the true mean (<i>P</i><span>&nbsp;</span>≤ 0.05) was 109 at 5 m and 46 at 100 m. Determination of location error with radiotelemetry equipment can be conducted by two people on land with a relatively small amount of effort when the results are to be applied to relatively shallow waters.</p></div>","language":"English","publisher":"Taylor and Francis","doi":"10.1080/02705060.1998.9663618","issn":"02705060","usgsCitation":"Simpkins, D., and Hubert, W., 1998, A technique for estimating the accuracy of fish locations identified by radiotelemetry: Journal of Freshwater Ecology, v. 13, no. 3, p. 263-268, https://doi.org/10.1080/02705060.1998.9663618.","productDescription":"6 p.","startPage":"263","endPage":"268","numberOfPages":"6","costCenters":[],"links":[{"id":479795,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1080/02705060.1998.9663618","text":"Publisher Index Page"},{"id":229798,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"13","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e5f0e4b0c8380cd47041","contributors":{"authors":[{"text":"Simpkins, D.G.","contributorId":80027,"corporation":false,"usgs":true,"family":"Simpkins","given":"D.G.","affiliations":[],"preferred":false,"id":387706,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hubert, W.A.","contributorId":12822,"corporation":false,"usgs":true,"family":"Hubert","given":"W.A.","email":"","affiliations":[],"preferred":false,"id":387705,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020609,"text":"70020609 - 1998 - Effects of metal mining and milling on boundary waters of Yellowstone National Park, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:19:46","indexId":"70020609","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1547,"text":"Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Effects of metal mining and milling on boundary waters of Yellowstone National Park, USA","docAbstract":"Aquatic resources in Soda Butte Creek within Yellowstone National Park, USA, continue to be threatened by heavy metals from historical mining and milling activities that occurred upstream of the park's boundary. This includes the residue of gold, silver, and copper ore mining and processing in the early 1900s near Cooke City, Montana, just downstream of the creek's headwaters. Toxicity tests, using surrogate test species, and analyses of metals in water, sediments, and macroinvertebrate tissue were conducted from 1993 to 1995. Chronic toxicity to test species was greater in the spring than the fall and metal concentrations were elevated in the spring with copper exceeding water quality criteria in 1995. Tests with amphipods using pore water and whole sediment from the creek and copper concentrations in the tissue of macroinvertebrates and fish also suggest that copper is the metal of concern in the watershed. In order to understand current conditions in Soda Butte Creek, heavy metals, especially copper, must be considered important factors in the aquatic and riparian ecosystems within and along the creek extending into Yellowstone National Park.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer-Verlag New York","publisherLocation":"Secaucus, NJ, United States","doi":"10.1007/s002679900158","issn":"0364152X","usgsCitation":"Nimmo, D., Willox, M., Lafrancois, T., Chapman, P., Brinkman, S., and Greene, J., 1998, Effects of metal mining and milling on boundary waters of Yellowstone National Park, USA: Environmental Management, v. 22, no. 6, p. 913-926, https://doi.org/10.1007/s002679900158.","startPage":"913","endPage":"926","numberOfPages":"14","costCenters":[],"links":[{"id":206859,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s002679900158"},{"id":230992,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a075ce4b0c8380cd5166a","contributors":{"authors":[{"text":"Nimmo, D.R.","contributorId":51052,"corporation":false,"usgs":true,"family":"Nimmo","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":386855,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Willox, M.J.","contributorId":84945,"corporation":false,"usgs":true,"family":"Willox","given":"M.J.","email":"","affiliations":[],"preferred":false,"id":386857,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lafrancois, T.D.","contributorId":74160,"corporation":false,"usgs":true,"family":"Lafrancois","given":"T.D.","affiliations":[],"preferred":false,"id":386856,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chapman, P.L.","contributorId":29144,"corporation":false,"usgs":true,"family":"Chapman","given":"P.L.","email":"","affiliations":[],"preferred":false,"id":386853,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Brinkman, S.F.","contributorId":47542,"corporation":false,"usgs":true,"family":"Brinkman","given":"S.F.","email":"","affiliations":[],"preferred":false,"id":386854,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Greene, J.C.","contributorId":9423,"corporation":false,"usgs":true,"family":"Greene","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":386852,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70021007,"text":"70021007 - 1998 - Geological factors affecting the distribution of trace metals in glacial sediments of central Newfoundland","interactions":[],"lastModifiedDate":"2012-03-12T17:19:48","indexId":"70021007","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1539,"text":"Environmental Geology","active":true,"publicationSubtype":{"id":10}},"title":"Geological factors affecting the distribution of trace metals in glacial sediments of central Newfoundland","docAbstract":"In central Newfoundland (NTS 12A/10, 15, 16, 2H/1), As, Pb, and Zn concentrations in the clay-sized (< 0.002 mm) and silt and clay-sized (< 0.063 mm) fractions of till reflect compositional differences among and within rock terranes at scales of kilometers to tens of kilometers. In those fractions, till derived from volcanic bedrock of Victoria Lake Group (Tulks Hill) is notably enriched in As (50- > 1000 ppm), exceeding levels commonly set for purposes of environmental protection. Near Pb-Zn mines at Buchans, geochemical variation with depth reflects the dispersal of detritus from mineralized bedrock, and differences in sediment type and provenance. There, surface sediments are rich in granitic debris derived from the Topsails igneous terrane 5 km north of Buchans and contain low concentrations of trace metals. These sediments are compositionally unrelated to either Buchans Group volcanic rock or an underlying, older till enriched in sulphide minerals and trace metals. Metal-rich till extending up to 10 km southwest of Buchans results from combined glacial and debris flow transport related to two distinct geological events. Trace metals are enriched (two- to fourfold) in the clay-sized fraction of till compared to the silt and clay-sized, and are associated with Al- and Mg-bearing minerals that preferentially concentrate in the clay fraction. The geochemistry of the silt and clay-sized fraction can approximate that of the < 2-mm fraction. Background variations in till illustrate the important role of a geological framework to the interpretation of geochemical surveys and the origins of trace metals in the environment.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s002540050235","issn":"09430105","usgsCitation":"Klassen, R., 1998, Geological factors affecting the distribution of trace metals in glacial sediments of central Newfoundland: Environmental Geology, v. 33, no. 2-3, p. 154-164, https://doi.org/10.1007/s002540050235.","startPage":"154","endPage":"164","numberOfPages":"11","costCenters":[],"links":[{"id":206452,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s002540050235"},{"id":229805,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"33","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a2261e4b0c8380cd56fc5","contributors":{"authors":[{"text":"Klassen, R.A.","contributorId":60803,"corporation":false,"usgs":true,"family":"Klassen","given":"R.A.","email":"","affiliations":[],"preferred":false,"id":388275,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70020837,"text":"70020837 - 1998 - Karst development and speleogenesis, Isla de Mona, Puerto Rico","interactions":[],"lastModifiedDate":"2012-03-12T17:19:52","indexId":"70020837","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2201,"text":"Journal of Cave and Karst Studies","active":true,"publicationSubtype":{"id":10}},"title":"Karst development and speleogenesis, Isla de Mona, Puerto Rico","docAbstract":"Isla de Mona consists of a raised table-top Miocene-Pliocene reef platform bounded on three sides by vertical cliffs, up to 80 m high. Hundreds of caves ring the periphery of the island and are preferentially developed in, but not limited to, the Lirio Limestone/Isla de Mona Dolomite contact. These flank margin caves originally formed at sea level and are now exposed at various levels by tectonic uplift of the island (Franbk 1983; Mylroie et al. 1995b). Wall cusps, a characteristic feature of flank margin caves, are ubiquitois features. Comparisons among similar caves formed in the Bahamas and Isla de Mona reveal the same overall morphology throughout the entire range of sizes and complexities. The coincidence of the primary cave development zone with the Lirio Limestone/Isla de Mona Dolomite contact may result from syngenetic speleogenesis and dolomitization rather than preferential dissolution along a lithologic boundary. Tectonic uplift and glacioeustatic sea level fluctuations produced caves at a variety of elevations. Speleothem dissolution took place in many caves under phreatic conditions, evidence these caves were flooded after an initial period of subaerial exposure and speleothem growth. Several features around the perimeter of the island are interpreted to be caves whose roofs were removed by surficial denudation processes. Several large closed depressions and dense pit cave fields are further evidence of surficial karst features. The cliff retreat around the island perimeter since the speleogenesis of the major cave systems is small based upon the distribution of the remnant cave sections.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Cave and Karst Studies","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"10906924","usgsCitation":"Frank, E., Mylroie, J., Troester, J., Alexander, E., and Carew, J., 1998, Karst development and speleogenesis, Isla de Mona, Puerto Rico: Journal of Cave and Karst Studies, v. 60, no. 2, p. 73-83.","startPage":"73","endPage":"83","numberOfPages":"11","costCenters":[],"links":[{"id":229834,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"60","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a4060e4b0c8380cd64cf2","contributors":{"authors":[{"text":"Frank, E.F.","contributorId":72959,"corporation":false,"usgs":true,"family":"Frank","given":"E.F.","email":"","affiliations":[],"preferred":false,"id":387710,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mylroie, J.","contributorId":41615,"corporation":false,"usgs":true,"family":"Mylroie","given":"J.","affiliations":[],"preferred":false,"id":387709,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Troester, J.","contributorId":9025,"corporation":false,"usgs":true,"family":"Troester","given":"J.","email":"","affiliations":[],"preferred":false,"id":387708,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Alexander, E.C. Jr.","contributorId":94062,"corporation":false,"usgs":true,"family":"Alexander","given":"E.C.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":387711,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Carew, J.L.","contributorId":6214,"corporation":false,"usgs":true,"family":"Carew","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":387707,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70020838,"text":"70020838 - 1998 - Strain IMB-1, a novel bacterium for the removal of methyl bromide in fumigated agricultural soils","interactions":[],"lastModifiedDate":"2023-01-12T20:43:36.481289","indexId":"70020838","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":850,"text":"Applied and Environmental Microbiology","active":true,"publicationSubtype":{"id":10}},"title":"Strain IMB-1, a novel bacterium for the removal of methyl bromide in fumigated agricultural soils","docAbstract":"<p><span>A facultatively methylotrophic bacterium, strain IMB-1, that has been isolated from agricultural soil grows on methyl bromide (MeBr), methyl iodide, methyl chloride, and methylated amines, as well as on glucose, pyruvate, or acetate. Phylogenetic analysis of its 16S rRNA gene sequence indicates that strain IMB-1 classes in the alpha subgroup of the class&nbsp;</span><i>Proteobacteria</i><span>&nbsp;and is closely related to members of the genus&nbsp;</span><i>Rhizobium</i><span>. The ability of strain IMB-1 to oxidize MeBr to CO</span><sub>2</sub><span>&nbsp;is constitutive in cells regardless of the growth substrate. Addition of cell suspensions of strain IMB-1 to soils greatly accelerates the oxidation of MeBr, as does pretreatment of soils with low concentrations of methyl iodide. These results suggest that soil treatment strategies can be devised whereby bacteria can effectively consume MeBr during field fumigations, which would diminish or eliminate the outward flux of MeBr to the atmosphere.</span></p>","language":"English","publisher":"American Society for Microbiology","doi":"10.1128/AEM.64.8.2899-2905.1998","issn":"00992240","usgsCitation":"Connell, H.T., Costello, A., Lidstrom, M., and Oremland, R., 1998, Strain IMB-1, a novel bacterium for the removal of methyl bromide in fumigated agricultural soils: Applied and Environmental Microbiology, v. 64, no. 8, p. 2899-2905, https://doi.org/10.1128/AEM.64.8.2899-2905.1998.","productDescription":"7 p.","startPage":"2899","endPage":"2905","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":479733,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1128/aem.64.8.2899-2905.1998","text":"Publisher Index Page"},{"id":229835,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"64","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b988ee4b08c986b31c093","contributors":{"authors":[{"text":"Connell, Hancock T.L.","contributorId":9418,"corporation":false,"usgs":true,"family":"Connell","given":"Hancock","email":"","middleInitial":"T.L.","affiliations":[],"preferred":false,"id":387712,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Costello, A.M.","contributorId":49951,"corporation":false,"usgs":true,"family":"Costello","given":"A.M.","email":"","affiliations":[],"preferred":false,"id":387713,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lidstrom, M.E.","contributorId":93207,"corporation":false,"usgs":true,"family":"Lidstrom","given":"M.E.","email":"","affiliations":[],"preferred":false,"id":387714,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Oremland, R.S.","contributorId":97512,"corporation":false,"usgs":true,"family":"Oremland","given":"R.S.","email":"","affiliations":[],"preferred":false,"id":387715,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70020804,"text":"70020804 - 1998 - Comparison of hydrochemical tracers to estimate source contributions to peak flow in a small, forested, headwater catchment","interactions":[],"lastModifiedDate":"2018-03-16T10:11:50","indexId":"70020804","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","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":"Comparison of hydrochemical tracers to estimate source contributions to peak flow in a small, forested, headwater catchment","docAbstract":"Three-component (throughfall, soil water, groundwater) hydrograph separations at peak flow were performed on 10 storms over a 2-year period in a small forested catchment in north-central Maryland using an iterative and an exact solution. Seven pairs of tracers (deuterium and oxygen 18, deuterium and chloride, deuterium and sodium, deuterium and silica, chloride and silica, chloride and sodium, and sodium and silica) were used for three-component hydrograph separation for each storm at peak flow to determine whether or not the assumptions of hydrograph separation routinely can be met, to assess the adequacy of some commonly used tracers, to identify patterns in hydrograph-separation results, and to develop conceptual models for the patterns observed. Results of the three-component separations were not always physically meaningful, suggesting that assumptions of hydrograph separation had been violated. Uncertainties in solutions to equations for hydrograph separations were large, partly as a result of violations of assumptions used in deriving the separation equations and partly as a result of improper identification of chemical compositions of end-members. Results of three-component separations using commonly used tracers were widely variable. Consistent patterns in the amount of subsurface water contributing to peak flow (45-100%) were observed, no matter which separation method or combination of tracers was used. A general conceptual model for the sequence of contributions from the three end-members could be developed for 9 of the 10 storms. Overall results indicated that hydrochemical and hydrometric measurements need to be coupled in order to perform meaningful hydrograph separations.","language":"English","publisher":"American Geophysical Union","doi":"10.1029/98WR00917","usgsCitation":"Rice, K.C., and Hornberger, G., 1998, Comparison of hydrochemical tracers to estimate source contributions to peak flow in a small, forested, headwater catchment: Water Resources Research, v. 34, no. 7, p. 1755-1766, https://doi.org/10.1029/98WR00917.","productDescription":"12 p.","startPage":"1755","endPage":"1766","costCenters":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"links":[{"id":487367,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/98wr00917","text":"Publisher Index Page"},{"id":229956,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Maryland","otherGeospatial":"Catoctin Mountain","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -77.52021789550781,\n              39.57049901310693\n            ],\n            [\n              -77.52021789550781,\n              39.69001640474053\n            ],\n            [\n              -77.3880386352539,\n              39.69001640474053\n            ],\n            [\n              -77.3880386352539,\n              39.57049901310693\n            ],\n            [\n              -77.52021789550781,\n              39.57049901310693\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"34","issue":"7","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f86ae4b0c8380cd4d0b8","contributors":{"authors":[{"text":"Rice, Karen C. 0000-0002-9356-5443 kcrice@usgs.gov","orcid":"https://orcid.org/0000-0002-9356-5443","contributorId":1998,"corporation":false,"usgs":true,"family":"Rice","given":"Karen","email":"kcrice@usgs.gov","middleInitial":"C.","affiliations":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"preferred":false,"id":387587,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hornberger, George M.","contributorId":63894,"corporation":false,"usgs":true,"family":"Hornberger","given":"George M.","affiliations":[],"preferred":false,"id":387586,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70020903,"text":"70020903 - 1998 - Mercury in lake sediments of the Precambrian Shield near Huntsville, Ontario, Canada","interactions":[],"lastModifiedDate":"2012-03-12T17:19:52","indexId":"70020903","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1539,"text":"Environmental Geology","active":true,"publicationSubtype":{"id":10}},"title":"Mercury in lake sediments of the Precambrian Shield near Huntsville, Ontario, Canada","docAbstract":"Long sediment cores (> 1 m) were collected from eight Precambrian Shield lakes in southern Ontario, Canada and analyzed for mercury (Hg), loss-on-ignition (LOI), and a suite of 36 other elements. Results indicated at least 100-fold variation in sediment Hg concentrations between lakes in close proximity (from 450 ppb), comparable to the variation reported for lakes across the whole of Canada. Strong areal correlations between Hg concentrations and LOI (r2=0.77), between Hg and other trace element concentrations (Pb, Zn, Cd, Sb, As, Br), and similarities in the vertical concentration profiles of Hg and LOI, all point to the importance of organic matter in the release, transport and redistribution of metals in watershed systems. The spatial pattern of Hg concentrations in deep, precolonial sediments (>20 cm) was found to mirror the pattern of Hg concentrations in modern surface sediments, an observation that was confirmed in a follow-up survey (r2= 0.85; n = 25 lakes), indicating that natural processes govern the unequal distribution of Hg among these lakes. Between-lake differences in surface sediment Hg concentrations normalized to organic carbon (Hg/C) were also reflected by Hg concentrations in small-mouth bass normalized to 35 cm length (R2=0.63; n= 15 lakes). The latter relationship suggests that small-mouth bass and lake sediment indicators provide mutually supportive information regarding Hg loading to the lacustrine environment from geological sources in the watershed system.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s002540050236","issn":"09430105","usgsCitation":"Rasmussen, P., Villard, D., Fortescue, J., Gardner, H., Schiff, S., and Shilts, W., 1998, Mercury in lake sediments of the Precambrian Shield near Huntsville, Ontario, Canada: Environmental Geology, v. 33, no. 2-3, p. 170-182, https://doi.org/10.1007/s002540050236.","startPage":"170","endPage":"182","numberOfPages":"13","costCenters":[],"links":[{"id":230198,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":206557,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s002540050236"}],"volume":"33","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5413e4b0c8380cd6ce90","contributors":{"authors":[{"text":"Rasmussen, P.E.","contributorId":52356,"corporation":false,"usgs":true,"family":"Rasmussen","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":387923,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Villard, D.J.","contributorId":47114,"corporation":false,"usgs":true,"family":"Villard","given":"D.J.","email":"","affiliations":[],"preferred":false,"id":387922,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fortescue, J.A.C.","contributorId":101039,"corporation":false,"usgs":true,"family":"Fortescue","given":"J.A.C.","email":"","affiliations":[],"preferred":false,"id":387925,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gardner, H.D.","contributorId":34678,"corporation":false,"usgs":true,"family":"Gardner","given":"H.D.","email":"","affiliations":[],"preferred":false,"id":387921,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schiff, S.L.","contributorId":13001,"corporation":false,"usgs":true,"family":"Schiff","given":"S.L.","email":"","affiliations":[],"preferred":false,"id":387920,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Shilts, W.W.","contributorId":54357,"corporation":false,"usgs":true,"family":"Shilts","given":"W.W.","email":"","affiliations":[],"preferred":false,"id":387924,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":1000800,"text":"1000800 - 1998 - Fish community changes in the St. Louis River estuary, Lake Superior, 1989-1996: Is it ruffe or population dynamics?","interactions":[],"lastModifiedDate":"2016-04-04T13:57:46","indexId":"1000800","displayToPublicDate":"1998-01-01T00:00:00","publicationYear":"1998","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2330,"text":"Journal of Great Lakes Research","active":true,"publicationSubtype":{"id":10}},"title":"Fish community changes in the St. Louis River estuary, Lake Superior, 1989-1996: Is it ruffe or population dynamics?","docAbstract":"<p><span>Ruffe (</span><i>Gymnocephalus cernuus</i><span>) have been implicated in density declines of native species through egg predation and competition for food in some European waters where they were introduced. Density estimates for ruffe and principal native fishes in the St. Louis River estuary (western Lake Superior) were developed for 1989 to 1996 to measure changes in the fish community in response to an unintentional introduction of ruffe. During the study, ruffe density increased and the densities of several native species decreased. The reductions of native stocks to the natural population dynamics of the same species from Chequamegon Bay, Lake Superior (an area with very few ruffe) were developed, where there was a 24-year record of density. Using these data, short- and long-term variations in catch and correlations among species within years were compared, and species-specific distributions were developed of observed trends in abundance of native fishes in Chequamegon Bay indexed by the slopes of densities across years. From these distributions and our observed trend-line slopes from the St. Louis River, probabilities of measuring negative change at the magnitude observed in the St. Louis River were estimated. Compared with trends in Chequamegon Bay, there was a high probability of obtaining the negative slopes measured for most species, which suggests natural population dynamics could explain, the declines rather than interactions with ruffe. Variable recruitment, which was not related to ruffe density, and associated density-dependent changes in mortality likely were responsible for density declines of native species.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/S0380-1330(98)70822-6","usgsCitation":"Bronte, C.R., Evrard, L.M., Brown, W.P., Mayo, K.R., and Edwards, A., 1998, Fish community changes in the St. Louis River estuary, Lake Superior, 1989-1996: Is it ruffe or population dynamics?: Journal of Great Lakes Research, v. 24, no. 2, p. 309-318, https://doi.org/10.1016/S0380-1330(98)70822-6.","productDescription":"10 p.","startPage":"309","endPage":"318","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":133436,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4a13e4b07f02db6020b0","contributors":{"authors":[{"text":"Bronte, Charles R.","contributorId":83050,"corporation":false,"usgs":true,"family":"Bronte","given":"Charles","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":309475,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Evrard, Lori M. 0000-0001-8582-5818 levrard@usgs.gov","orcid":"https://orcid.org/0000-0001-8582-5818","contributorId":2720,"corporation":false,"usgs":true,"family":"Evrard","given":"Lori","email":"levrard@usgs.gov","middleInitial":"M.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":309473,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Brown, William P.","contributorId":16357,"corporation":false,"usgs":true,"family":"Brown","given":"William","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":309474,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mayo, Kathleen R.","contributorId":101237,"corporation":false,"usgs":true,"family":"Mayo","given":"Kathleen","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":309477,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Edwards, Andrew J.","contributorId":90266,"corporation":false,"usgs":true,"family":"Edwards","given":"Andrew J.","affiliations":[],"preferred":false,"id":309476,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
]}