{"NOAAStudyId":"5425","contactInfo":{"address":"325 Broadway, E/NE31","city":"Boulder","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.","country":"USA","dataCenterUrl":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data","email":"paleo@noaa.gov","fax":"303-497-6513","longName":"National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce ","phone":"303-497-6280","postalCode":"80305-3328","shortName":"DOC/NOAA/NESDIS/NCEI","state":"CO","type":"CONTACT INFORMATION"},"contributionDate":"2004-05-05","dataPublisher":"NOAA","dataType":"SPELEOTHEMS","dataTypeInformation":"https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem","difMetadataLink":"http://www1.ncdc.noaa.gov/pub/data/metadata/published/paleo/dif/xml/noaa-cave-5425.xml","doi":null,"earliestYearBP":8598,"earliestYearCE":-6648,"entryId":"noaa-cave-5425","funding":[],"investigators":"Denniston, R.F.; González, L.A.; Baker, R.G.; Reagan, M.K.; Bettis, E.A.","mostRecentYearBP":-40,"mostRecentYearCE":1990,"onlineResourceLink":"https://www.ncdc.noaa.gov/paleo/study/5425","originalSource":null,"publication":[],"reconstruction":"N","scienceKeywords":null,"site":[{"NOAASiteId":"6552","geo":{"geoType":"Feature","geometry":{"coordinates":["43.47","-91.97"],"type":"POINT"},"properties":{"easternmostLongitude":"-91.97","maxElevationMeters":"356","minElevationMeters":"356","northernmostLatitude":"43.47","southernmostLatitude":"43.47","westernmostLongitude":"-91.97"}},"locationName":"Continent>North America>United States Of America>Iowa","mappable":"Y","paleoData":[{"NOAADataTableId":"7160","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>oxygen isotopes","earth science>paleoclimate>speleothems>carbon isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/iowa/coldwater_cave.txt","linkText":"coldwater_cave.txt","urlDescription":"Speleothem","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"CWC-1s","dataTableNotes":null,"earliestYear":-5826,"earliestYearBP":7776,"earliestYearCE":-5826,"mostRecentYear":1990,"mostRecentYearBP":-40,"mostRecentYearCE":1990,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"7161","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>carbon isotopes","earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/iowa/coldwater_cave.txt","linkText":"coldwater_cave.txt","urlDescription":"Speleothem","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"CWC-3L","dataTableNotes":null,"earliestYear":-6648,"earliestYearBP":8598,"earliestYearCE":-6648,"mostRecentYear":-27,"mostRecentYearBP":1977,"mostRecentYearCE":-27,"species":[],"timeUnit":"AD"},{"NOAADataTableId":"7162","coreLengthMeters":null,"dataFile":[{"NOAAKeywords":["earth science>paleoclimate>speleothems>carbon isotopes","earth science>paleoclimate>speleothems>oxygen isotopes"],"fileUrl":"https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/iowa/coldwater_cave.txt","linkText":"coldwater_cave.txt","urlDescription":"Speleothem","variables":[{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":null,"cvError":null,"cvFormat":"Numeric","cvMaterial":null,"cvMethod":null,"cvSeasonality":null,"cvShortName":null,"cvUnit":"calendar year before present","cvWhat":"age variable>age"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil PDB","cvWhat":"chemical composition>isotope>isotope ratio>delta 13C"},{"cvAdditionalInfo":null,"cvDataType":"SPELEOTHEMS","cvDetail":"raw","cvError":null,"cvFormat":"Numeric","cvMaterial":"geological material>identified mineral>carbonate>calcium carbonate","cvMethod":"isotope ratio mass spectrometry","cvSeasonality":null,"cvShortName":null,"cvUnit":"per mil SMOW","cvWhat":"chemical composition>isotope>isotope ratio>delta 18O"}]}],"dataTableName":"CWC-2ss","dataTableNotes":null,"earliestYear":-5525,"earliestYearBP":7475,"earliestYearCE":-5525,"mostRecentYear":854,"mostRecentYearBP":1096,"mostRecentYearCE":854,"species":[],"timeUnit":"AD"}],"siteName":"Cold Water Cave"}],"studyCode":null,"studyName":"Denniston et al. 1999 Cold Water Cave Iowa Stalagmite Stable Isotope Data","studyNotes":"DESCRIPTION: \nStable isotope data (13C and 18O) of three stalagmites from Cold Water Cave, \nnortheastern Iowa, USA. (43 28' 04\" N, 91 58' 30\" W, 356m surface elevation) \n\nStalagmites dated by U-Th Series and isotope data \ncollected on a Finnigan MAT 252 using a Kiel II device.  \n\n*d234Umeasured = [(234U/238U)measured /(234U/238U)eq -1] x 10x(3), where (234U/238U)eq is the secular\nequilibrium atomic ratio: lamda238/lamda234 = 5.472 x 10 x(-5). analytical errors(2sigma) associated with U and Th\nconcentrations are better than 1% for 1sand 3L and < 8% for 2SS. Unsupported 230Th was\nsubtracted by using an initial 230Th/232Th ratio of 2.5 x10 x(-6) determined by analyses of insoluble \nresidues from 1S and 3L. precise constraints on the initial 230Th/232Th ratio in 1S and 3L were \nnot applied to 2SS (2.5 x 10 x(-6) +- 1.25 X 10 x(-6) was used for 2SS), thus resulting in larger age\nuncertainties in this sample.\n\n! values in parentheses replresent 2sigma errors in the last significant figure.\n$ data reported in Dorale et al. (1992).\n# these dates are problematic and actual uncertainties are likely larger than indicated. Two\nadditional 3L samples, 180.0 and 210.0 mm from the bottom (not tabulated), yielded anomalously\nyoung dates that fell out of stratigraphic sequence. Furthermore, the insoluble residue from one\nof these (180) had an anomalously high 230Th/232Th ratio (3.1 X 10 x(-5). the anomalous samples \nand residue correction uncertainties therefore cast doubt on the accuracy of the ages for the low \n230th/232Th samples at 11.0,239.0, and 305.0 mm. However, the reported ages for these three\nsamples are in sequence with the more reliable ages from 84.5 and 53.0 mm, and are consistent\nwith stratigraphic correction with the d13c trends in1S and 2SS. \n","version":"1.0","xmlId":"7311"}