{"xmlId":"7284","NOAAStudyId":"5428","studyName":"Denniston et al. 1999 north-central USA Speleothem Stable Isotope Data","doi":"https://doi.org/10.25921/a8wz-4970","uuid":"07af9764-8b7d-4ced-9dcf-01eea928cd46","dataPublisher":"NOAA","contactInfo":{"type":"CONTACT INFORMATION","shortName":"DOC/NOAA/NESDIS/NCEI","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","address":"325 Broadway, E/NE31","city":"Boulder","state":"CO","postalCode":"80305-3328","country":"USA","dataCenterUrl":"https://www.ncei.noaa.gov/products/paleoclimatology","email":"paleo@noaa.gov","phone":"828-271-4800","fax":null,"constraints":"Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site."},"dataType":"SPELEOTHEMS","investigators":"Denniston, R.F.; González, L.A.; Baker, R.G.; Asmerom, Y.; Reagan, M.K.; Edwards, R.L.; Alexander, E.C.","investigatorDetails":[{"firstName":"Rhawn","lastName":"Denniston","initials":"R.F.","orcId":"0000-0002-6346-1221"},{"firstName":"Luis","lastName":"González","initials":"L.A.","orcId":null},{"firstName":"Richard","lastName":"Baker","initials":"R.G.","orcId":"0000-0002-5460-725X"},{"firstName":"Yemane","lastName":"Asmerom","initials":"Y.","orcId":"0000-0003-3440-1294"},{"firstName":"Mark","lastName":"Reagan","initials":"M.K.","orcId":"0000-0003-1628-4194"},{"firstName":"R. Lawrence","lastName":"Edwards","initials":"R.L.","orcId":"0000-0002-7027-5881"},{"firstName":"E. Calvin","lastName":"Alexander","initials":"E.C.","orcId":null}],"version":"1.0","funding":[{"fundingAgency":"US National Oceanic and Atmospheric Administration (NOAA)","fundingGrant":"NA366PO238"},{"fundingAgency":"Geological Society of America","fundingGrant":null},{"fundingAgency":"National Speleological Society","fundingGrant":null},{"fundingAgency":"Cave Research Foundation","fundingGrant":null},{"fundingAgency":"Cave Conservancy of the Virginias","fundingGrant":null},{"fundingAgency":"Richmond Area Speleological Society","fundingGrant":null},{"fundingAgency":"University of Iowa","fundingGrant":null},{"fundingAgency":"US National Science Foundation","fundingGrant":"ATM-9731138"}],"studyNotes":"Stable isotope data (13C and 18O) of one stalagmite from Crystal Cave Wisconsin (44° 49' 57\"N, 92° 15' 08\"W (WGS84/NAD83) 332 meters), one stalagmite from Mystery Cave Minnesota (43° 37.392 N, 92° 18.086 W (WGS84/NAD83) 403 meters at surface), and two stalagmites from Spring Valley Caverns Minnesota (SVC-IV - North Crawl) 43° 44' 45\"N, 92° 24' 49\"W (WGS84/NAD83), 397 m at surface). Stalagmites dated by U-Th Series, and isotope data collected on a Finnigan MAT 252 using a Kiel II device.  Analyses of Cold Water Cave stalagmite 1S are tabulated in Dorale et al. (1992). The total length of SV-1 = 635 mm; SV-2 = 560 mm; MC-28 = 317 mm; CC-A = 311 mm.","onlineResourceLink":"https://www.ncei.noaa.gov/access/paleo-search/study/5428","difMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-cave-5428.xml","isoMetadataLink":"https://www.ncei.noaa.gov/pub/data/metadata/published/paleo/iso/xml/noaa-cave-5428.xml","originalSource":null,"dataTypeInformation":"https://www.ncei.noaa.gov/products/paleoclimatology/speleothem","studyCode":null,"scienceKeywords":null,"reconstruction":"N","contributionDate":"1999-01-01","entryId":"noaa-cave-5428","earliestYearBP":8517,"mostRecentYearBP":0,"earliestYearCE":-6567,"mostRecentYearCE":1950,"publication":[{"author":{"name":"Denniston, R.F., L.A. González, R.G. Baker, Y. Asmerom, M.K. Reagan, R.L. Edwards, and C. Alexander"},"pubYear":1999,"title":"Speleothem evidence for Holocene fluctuations of the prairie-forest ecotone, north-central USA","journal":"The Holocene","volume":"9","edition":null,"issue":"6","pages":"671-676","reportNumber":null,"citation":"Denniston, R.F., L.A. González, R.G. Baker, Y. Asmerom, M.K. Reagan, R.L. Edwards, and C. Alexander. 1999. Speleothem evidence for Holocene fluctuations of the prairie-forest ecotone, north-central USA. The Holocene, 9(6), 671-676. doi: 10.1191/095968399674716399","type":"publication","identifier":{"type":"doi","id":"10.1191/095968399674716399","url":"http://dx.doi.org/10.1191/095968399674716399"},"abstract":"Carbon and oxygen isotopic trends from seven Midwestern speleothems record significant offsets in the timing of middle-Holocene vegetation change. Interactions of dry Pacific and moist Gulf of Mexico air masses maintained a sharp moisture gradient across Iowa, Minnesota, and Wisconsin such that the arrival of prairie was offset by 2000 years between caves and pollen sites located only 50 km apart. Oxygen isotopes shift concomitantly with carbon in most cases, although these changes are believed to represent increased evaporative enrichment of 18O prior to infiltration during the prairie period.","pubRank":"1"}],"site":[{"NOAASiteId":"6555","siteName":"Crystal Cave, Wisconsin","siteCode":null,"mappable":"N","locationName":"Continent>North America>United States Of 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