noaa-cave-10444 eng; USA utf8 dataset Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2018-12-11 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Xinya Cave, China Glacial Speleothem Oxygen Isotope Data 2010-07-08 publication noaa-cave-10444 NCEI DSI 1200_01 Li, T.-Y. originator Li, T.-Y. author Yuan, D.X. originator Yuan, D.X. author Li, H-C. originator Li, H-C. author Yang, Y. originator Yang, Y. author Wang, J.L. originator Wang, J.L. author Wang, X.Y. originator Wang, X.Y. author Li, J.Y. originator Li, J.Y. author Qin, J.M. originator Qin, J.M. author Zhang, M.L. originator Zhang, M.L. author Lin, Y.S. originator Lin, Y.S. author NOAA National Centers for Environmental Information publisher tableDigital This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Cave. The data include parameters of speleothems with a geographic location of China, Eastern Asia. The time period coverage is from 69550 to 57620 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. Records of past temperature, precipitation, and other aspects of climate derived from mineral deposits found in caves. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. completed Bauer, Bruce DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce +1 303-497-6280 +1 303-497-6513 325 Broadway, E/CC23 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncdc.noaa.gov/c/images/pc-default-cave.png Paleoclimatology - Speleothem PNG Earth Science > Climate Indicators > Paleoclimate Indicators > Land Records > Cave Deposits Earth Science > Climate Indicators > Paleoclimate Indicators > Speleothems Earth Science > Paleoclimate > Land Records > Cave Deposits theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems > oxygen isotopes theme Global Change Master Directory (GCMD) Science Keywords 2018 revision Version 8.6 Global Change Data Center, Science and Exploration Directorate, Goddard Space Flight Center (GSFC) National Aeronautics and Space Administration (NASA) https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords HTTPS Web Browser Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information publisher Monsoon theme Continent > Asia > Eastern Asia > China> Xinya Cave > LATITUDE 30.75 > LONGITUDE 109.4667 place otherRestrictions Cite as: Li, T.-Y.; Yuan, D.X.; Li, H-C.; Yang, Y.; Wang, J.L.; Wang, X.Y.; Li, J.Y.; Qin, J.M.; Zhang, M.L.; Lin, Y.S. (2010-07-08): NOAA/WDS Paleoclimatology - Xinya Cave, China Glacial Speleothem Oxygen Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://www.ncdc.noaa.gov/paleo/study/10444. Accessed [date]. otherRestrictions Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives. otherRestrictions Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose. otherRestrictions None otherRestrictions 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. eng; USA geoscientificInformation Date Range: 69550 cal yr BP to 57620 cal yr BP; 109.4667 109.4667 30.75 30.75 Study Coordinates 30.75 109.4667 -67600 -55670 STUDY NOTES: Speleothem oxygen isotope data from a 26-cm-long stalagmite (XY2) from Xinya Cave in south China. Stalagmite XY2 is ICP-MS 230Th/U dated to between 57 ka and 70 ka. The d18O values reveal decadal- to-centennial climatic variability during the glacial interval of Marine Isotope Stage 4 (MIS4). Heinrich event 6, and Dansgaard- Oeschger (D-O) events 17 and 18 can be determined by the XY2 d18O records, which are higher resolution than previous records in China. ABSTRACT SUPPLIED BY ORIGINATOR: A 26-cm-long stalagmite (XY2) from Xinya Cave in northeastern Chongqing of China has been ICP-MS 230Th/U dated, showing a depositional hiatus at 2.3 cm depth from the top. The growth of the 2.3-26 cm interval determined by four dates was between 57 ka and 70 ka, with a linear growth rate of 0.023 mm/a. We have analyzed 190 samples for d18O and d13C, mostly in the 2.3-26 cm part. The d18O and d13C values between 57 ka and 70 ka reveal decadal-to-centennial climatic variability during the glacial interval of Marine Isotope Stage 4 (MIS4), exhibiting much higher resolution than that of the published Hulu and Dongge records during this interval. Speleothem d18O in eastern China, including our study area can be used as a proxy of summer monsoon strength, with lighter values pointing to stronger summer monsoon and higher precipitation, and vice versa. Two decreases in the d18O signature of XY2 record around 59.5 and 64.5 Ka are argued to correspond to the Dansgaard-Oeschger (D-O) events 17 and 18 respectively. The Heinrich event 6 (H6) can be identified in the record as a heavy d18O peak around 60 ka, indicating significant weakening of the monsoon in Chongqing during the cold period. The XY2 d18O record shows very rapid change toward to the interstadial condition of the D-O event, but more gradual change toward to the cold stadial condition. This phenomenon found in the Greenland ice core records is rarely observed so clearly in previously published speleothem records. According to SPECMAP d18O record, the glacial maximum of MIS 4 was around 64.5 ka with the boundary of MIS 3/4 around 60 ka. Unlike the marine record, the speleothem record of XY2, China, exhibits much high frequency variations without an apparent glacial maximum during MIS 4. However, the timing of MIS 3/4 boundary seems to be around 60 ka when the H6 terminated, in agreement with the marine chronology. The growth period of sample XY2 during glacial times probably reflects a local karstic routing of water, rather than having climatic significance. DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce Customer Engagement Branch 1-828-271-4800 1-828-271-4876 151 Patton Avenue Veach-Baley Federal Building, Room 468 Asheville NC 28801-5001 USA ncei.orders@noaa.gov https://www.ncei.noaa.gov HTTPS Web Browser NOAA National Centers for Environmental Information (NCEI) NCEI home page with information, data access and contact information. information 8:00 - 6:00 Eastern distributor In most cases, electronic downloads of the data are free, however fees may apply for data certifications, copies of analog materials, and data distribution on physical media. Native Format(s) https://data.nodc.noaa.gov/cgi-bin/iso?id=noaa-cave-10444 HTTPS Landing Page NCEI landing page for this dataset Dataset landing page with general information and links to access the data. information https://www.ncdc.noaa.gov/paleo/study/10444 HTTPS Web Browser NCEI Study Page Study page with dataset access information. search https://www.ncdc.noaa.gov/data-access/paleoclimatology-data/datasets/speleothem HTTPS Information NCEI Cave Page General information for this data type. information https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/xinya2007.txt HTTPS Download /speleothem/asia/china/xinya2007.txt Speleothem download https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/asia/china/xinya2007.xls HTTPS Download /speleothem/asia/china/xinya2007.xls Speleothem download asNeeded This metadata record was translated from DIF using dif-9x-to-iso-19115-2.xsl Version: 2018-10-25