noaa-cave-19038 Lehman Caves, Nevada 16,000 Year Speleothem Stable Isotope and Elemental Data Steponaitis, E.; Andrews, A.; McGee, D.; Quade, J.; Hsieh, Y.-T.; Broecker, W.S.; Shuman, B.N.; Burns, S.J.; Cheng, H. Lehman Caves, Nevada 16,000 Year Speleothem Stable Isotope and Elemental Data 2015-07-28 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/19038 Investigator E. Steponaitis Investigator A. Andrews Investigator D. McGee Investigator J. Quade Investigator Y.-T. Hsieh Investigator W.S. Broecker Investigator B.N. Shuman Investigator S.J. Burns Investigator H. Cheng earth science paleoclimate speleothems strontium/calcium,calcium carbonate,null,millimole per mole,null,speleothems,raw,inductively-coupled plasma mass spectrometry|laser ablation,N,null earth science paleoclimate speleothems magnesium/calcium,calcium carbonate,null,mole per mole,null,speleothems,raw,inductively-coupled plasma mass spectrometry|laser ablation,N,null earth science paleoclimate speleothems age,null,null,calendar year before present,null,speleothems,null,null,N,null earth science paleoclimate speleothems delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems delta 13C,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null earth science paleoclimate speleothems carbon isotopes earth science paleoclimate speleothems oxygen isotopes earth science paleoclimate speleothems geochemistry geoscientificInformation 16400 cal yr BP 3836 cal yr BP Complete 39.0056 39.0056 -114.2203 -114.2203 2130 2130 Continent North America United States Of America Nevada Lehman Caves>LATITUDE 39.0056>LONGITUDE -114.2203 None 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. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Steponaitis, Elena; Andrews, Alexandra; McGee, David; Quade, Jay; Hsieh, Yu-Te; Broecker, Wallace S.; Shuman, Bryan N.; Burns, Stephen J.; Cheng, Hai 2015 Quaternary Science Reviews 10.1016/j.quascirev.2015.04.011 http://www.sciencedirect.com/science/article/pii/S0277379115001535

Lake level records point to dramatic changes in Great Basin water balance over the last 25 ka, but the timing and pace of Holocene drying in the region remains poorly documented. Here we present stable isotope and trace metal data from two Lehman Caves, NV speleothems that provide a well-dated record of latest Pleistocene to mid-Holocene hydroclimate in the U.S. Great Basin. Together the stalagmites span the interval between 16.4 ka and 3.8 ka, with a hiatus from 15.0 ka to 12.7 ka. Mg/Ca and d13C covary throughout the records, consistent with control by the extent of degassing and prior calcite precipitation (PCP); measurements of modern cave and soil waters support PCP as the primary control on drip-water trace-element composition. We therefore interpret Mg/Ca and d13C as reflecting infiltration rates, with higher values corresponding to drier periods. Both Mg/Ca and d13C indicate a wet period at the beginning of the record (12.7-8.2 ka) followed by pronounced drying after 8.2 ka. This mid-Holocene drying is consistent with records from around the western United States, including a new compilation of Great Basin lake-level records. The strong temporal correspondence with the collapse of the Laurentide ice sheet over Hudson Bay suggests that this drying may have been triggered by northward movement of the winter storm track as a result of ice sheet retreat. However, we cannot rule out an alternative hypothesis that wet early Holocene conditions are related to equatorial Pacific sea-surface temperature. Regardless, our results suggest that Great Basin water balance in the early Holocene was driven by factors other than orbital changes. STUDY NOTES: Stable isotope (d18O and d13C) and elemental (Mg/Ca and Sr/Ca) records from 2 speleothems (WR11 and CDR3) collected in Lehman Caves, Nevada.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/nevada/lehman2015cdr3elem.txt Data File; Lehman Caves Stalagmite CDR3 Elemental Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/nevada/lehman2015cdr3iso.txt Data File; Lehman Caves Stalagmite CDR3 Stable Isotope Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/nevada/lehman2015wr11elem.txt Data File; Lehman Caves Stalagmite WR11 Elemental Data GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/northamerica/usa/nevada/lehman2015wr11iso.txt Data File; Lehman Caves Stalagmite WR11 Stable Isotope Data USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11