noaa-cave-40103 eng; USA utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact 2025-02-21 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) NOAA/WDS Paleoclimatology - Goda Mea Cave Geochemical Data from 129200 to 108200 Cal Yr BP 2024-09-02 publication doi:10.25921/p2gg-ej75 noaa-cave-40103 NCEI DSI 1200_02 NCEI DSI 1200_01 Asrat, A.A. originator Asrat, A.A. author Baker, A. originator Baker, A. author Leng, M.J. originator Leng, M.J. author Hellstrom, J.C. originator Hellstrom, J.C. author Mariethoz, G. originator Mariethoz, G. author Boomer, I. originator Boomer, I. author Yu, D. originator Yu, D. author Jex, C.N. originator Jex, C.N. author Gunn, J. originator Gunn, J. 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 Ethiopia, Eastern Africa. The time period coverage is from 129166 to 108230 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 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information pointOfContact NOAA World Data Service for Paleoclimatology Data Center Contact 828-271-4800 303-497-6513 325 Broadway, E/NE31 Boulder CO 80305-3328 USA paleo@noaa.gov pointOfContact https://www.ncei.noaa.gov/pub/data/paleo/webimages/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 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems earth science > paleoclimate > speleothems > trace metals earth science > paleoclimate > speleothems > carbon isotopes earth science > paleoclimate > speleothems > oxygen isotopes theme Global Change Master Directory (GCMD) Science Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian What: sample thickness; Material: null What: barium/calcium; Material: null What: delta 13C; Material: calcite What: age; Material: null What: delta 18O; Material: calcite What: phosphorus/calcium; Material: null What: uranium/calcium; Material: null What: depth; Material: null What: strontium/calcium; Material: null theme Paleoenvironmental Standard Terms (PaST) Thesaurus NOAA National Centers for Environmental Information https://www.ncei.noaa.gov/products/paleoclimatology/paleoenvironmental-standard-terms-thesaurus PaST Thesaurus information publisher Continent > Africa > Eastern Africa > Ethiopia > Goda Mea Cave > LATITUDE 9.49 > LONGITUDE 37.66 place DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2025 revision 22 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian otherRestrictions Cite as: Asrat, A.A.; Baker, A.; Leng, M.J.; Hellstrom, J.C.; Mariethoz, G.; Boomer, I.; Yu, D.; Jex, C.N.; Gunn, J. (2024-09-02): NOAA/WDS Paleoclimatology - Goda Mea Cave Geochemical Data from 129200 to 108200 Cal Yr BP. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/p2gg-ej75. 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. Paleoclimate change in Ethiopia around the last interglacial derived from annually-resolved stalagmite evidence 2018 publication Asrat, Asfawossen; Andy Baker; Melanie J. Leng; John Hellstrom; Gregoire Mariethoz; Ian Boomer; Dorothy Yu; Catherine N. Jex; John Gunn author Quaternary Science Reviews publisher https://doi.org/10.1016/j.quascirev.2018.06.016 HTTPS Web Browser Associated Reference published 2018 Asrat, Asfawossen; Andy Baker; Melanie J. Leng; John Hellstrom; Gregoire Mariethoz; Ian Boomer; Dorothy Yu; Catherine N. Jex; John Gunn, 2018: Paleoclimate change in Ethiopia around the last interglacial derived from annually-resolved stalagmite evidence. Quaternary Science Reviews, 202, 197-210, 10.1016/j.quascirev.2018.06.016 information crossReference sciencePaper eng; USA geoscientificInformation Date Range: 129166 cal yr BP to 108230 cal yr BP; 37.66 37.66 9.49 9.49 Study Coordinates 9.49 37.66 -127216 -106280 STUDY NOTES: Data contributed as part of SISAL v3 Global Speleothem Isotope and Trace Element Database (https://doi.org/10.25921/jajq-qg60). Notes from the SISAL database: Mixed Geology: the hostrock above the cave consists of a 25m thick layer of sandy limestone intercalated with some marl and mudstone, above this layer there is another 20m of calcareous sandstone, silt, carbonate rich shale and marl. \\ GM1 (SISAL entity_id = 764) For this specific speleothem it is unknown whether the drip water and modern calcite are in equilibrium, but in other places in this region most drips and modern calcite are not in equilibrium. Mixed age model: U series ages and lamina counting combined. Modern Reference for lamina counting is the year of U-Th chemistry as the lamina counts were anchored using U-Th dates. Annual lamination is based on comparison of the lamination to other speleothems from the same region - in these other speleothems similar lamination has been shown to be annual by radiometric dating. GM1 laminae are similar in thickness and appearance to those other speleothems. Examination of thick sections of GM1at various levels of the growth phases (Fig. 2) showcontinuous and regular visible laminaewith alternating brownish calcite (Dark Compact Laminae, DCL) and thinner white calcite (White Porous Laminae,WPL) as defined by Genty and Quinif (1996) and Genty et al. (1997). The presence of fine sediments on the white porous calcite, and some dissolution features at the top of the DCL, suggests some seasonal infiltration variability (cf. Borsato et al., 2007). Overall, the regularly alternating DCL/WPL laminae sequence, even without more obvious structures from infiltration variability, indicate deposition under a seasonal hydroclimate regime (e.g. changes in dripwater supersaturation or cave air CO2 concentration), where recharge was sufficient to maintain continuous dripping to the stalagmite. Sample data: the stable isotope and trace element analyses were done on powder aliquots that were separately drilled, however data with the same interpolated age (interp_age) were combined together using the depth value of the stable isotope analysis in the original dataset. ABSTRACT SUPPLIED BY ORIGINATOR: Oxygen and carbon (δ18Ο/δ13C) isotope, growth rate and trace element data are reported for a U-Th dated, annually-laminated stalagmite, GM1 from Goda Mea Cave, Ethiopia. The stalagmite grew intermittently around the last interglacial. The proxy records are used to develop a conceptual growth model of the stalagmite and to assess its potential for revealing a climate signal in this climatically sensitive northeastern African region during an important period in the evolution of Homo sapiens and dispersal of Anatomically Modern Humans out of Africa. Speleothem deposition is of short-duration occurring at ∼129 ka, ∼120 ka, in an undated growth phase, and at ∼108 ka; probably due to tectonic activity. δ18Ο composition is very stable within growth phases (1σ variability < 0.76‰), as are Mg/Ca, Sr/Ca and Ba/Ca, all indicative of well-mixed source-waters. A shift to positive δ18Ο values and increased variability in Mg/Ca, Sr/Ca and Ba/Ca prior to growth hiatuses is observed, indicating a loss of the well-mixed water source prior to growth cessation. Mean δ18Ο composition (−3.82 to −7.77‰) is lower than published modern and Holocene stalagmites from the region. Geochemical data, statistical analyses, and a conceptual model of stalagmite growth, demonstrate that climatic conditions recorded by GM1 were wetter than the Holocene. The ∼129 ka growth phase particularly presents an annual record of the relative Intertropical Convergence Zone (ITCZ) position. The GM1 record, the oldest high-resolution continental climate record from Ethiopia so far published, presents evidence that any early human migrations which occurred during MIS 5 are likely to have occurred during a wet event in northeast Africa. NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact NCEI Contact Information Information for contacts at NCEI. information distributor In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. Native Format(s) https://doi.org/10.25921/p2gg-ej75 HTTPS Landing Page Metadata Landing Page NCEI landing page with general information and links to access the data. information https://www.ncei.noaa.gov/access/paleo-search/study/40103 HTTPS Web Browser NOAA Study Page Study page with data access information. search https://www.ncei.noaa.gov/products/paleoclimatology/speleothem HTTPS Information NCEI Cave Page General information for this data type. information https://www.ncei.noaa.gov/pub/data/paleo/speleothem/SISAL-v3/noaa_templates/Asrat2018-GM1.txt HTTPS Download /speleothem/SISAL-v3/noaa_templates/Asrat2018-GM1.txt Speleothem download asNeeded This ISO metadata record was translated from DIF metadata using dif-9x-to-iso-19115-2.xsl Version: 2022-06-21