NOAA/WDS Paleoclimatology - Shakun et al. 2007 Socotra Island, Yemen Stalagmite Stable Isotope Data
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title: NOAA/WDS Paleoclimatology - Shakun et al. 2007 Socotra Island, Yemen Stalagmite Stable Isotope Data
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date: 2007-09-01
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Anchor: DOI doi:10.25921/z60b-wb38
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abstract: 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 Yemen, Middle East. The time period coverage is from 27370 to 11086 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
purpose: 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.
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keyword: Earth Science > Climate Indicators > Paleoclimate Indicators > Land Records > Cave Deposits
keyword: Earth Science > Climate Indicators > Paleoclimate Indicators > Speleothems
keyword: Earth Science > Paleoclimate > Land Records > Cave Deposits
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keyword: earth science > paleoclimate > speleothems
keyword: earth science > paleoclimate > speleothems
keyword: earth science > paleoclimate > speleothems
keyword: earth science > paleoclimate > speleothems
keyword: earth science > paleoclimate > speleothems > carbon isotopes
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keyword: What: delta 18O; Material: calcium carbonate
keyword: What: depth; Material: null
keyword: What: age; Material: null
keyword: What: delta 13C; Material: calcium carbonate
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keyword: Continent > Asia > Western Asia > Middle East > Yemen > Moomi Cave > LATITUDE 12.5 > LONGITUDE 54
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otherConstraints: Cite as: Shakun, J.D.; Burns, S.J.; Fleitmann, D.; Kramers, J.; Matter, A.; Al-Subary, A.A. (2007-09-01): NOAA/WDS Paleoclimatology - Shakun et al. 2007 Socotra Island, Yemen Stalagmite Stable Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/z60b-wb38. Accessed [date].
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otherConstraints: 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.
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otherConstraints: 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.
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otherConstraints: 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.
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title: A high-resolution, absolute-dated deglacial speleothem record of Indian Ocean climate from Socotra Island, Yemen.
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date: 2007
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description: Shakun, J.D., S.J. Burns, D. Fleitmann, J. Kramers, A. Matter, and A. Al-Subary, 2007: A high-resolution, absolute-dated deglacial speleothem record of Indian Ocean climate from Socotra Island, Yemen.. Earth and Planetary Science Letters, 259, 442-456, 10.1016/j.epsl.2007.05.004
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description: Date Range: -25420 CE to -9136 CE; Date Range: 27370 cal yr BP to 11086 cal yr BP;
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supplementalInformation: STUDY NOTES: This dataset contains stable oxygen and carbon isotopes from stalagmite M1-5 from Moomi Cave, Socotra Island, Yemen (12º30'N, 54ºE) covering the interval ~27-11 ka in decadal resolution. 717 samples in total were drilled along the speleothem's growth axis using a 0.5 mm carbide dental burr and analyzed on a Finnegan Delta XL ratio mass spectrometer at the University of Massachusetts. 28 230-Th dates constrain the chronology and were measured at the University of Bern. ABSTRACT SUPPLIED BY ORIGINATOR: Stalagmite M1-5 from Socotra Island, Yemen in the northwest Indian Ocean provides a robust, high-resolution paleoclimate record from ~27.4 - 11.1 ka based on 717 stable isotope and 28 230Th measurements. Variations in M1-5 oxygen isotope ratios (d18O) are interpreted to be primarily driven by an amount effect related to changes in the mean position and/or intensity of convection of the intertropical convergence zone, the island's only source of precipitation. The M1-5 d18O time series is strongly correlated to the Greenland ice cores, similar to an older Socotra speleothem deposited from 53-40ka [S.J. Burns, D. Fleitmann, A. Matter, J. Kramers, A. Al-Subbary, Indian Ocean climate and an absolute chronology over Dansgaard/Oeschger events 9 to 13, Science 301 (2003) 1365 - 1367], indicating that a North Atlantic - Indian Ocean cold-dry/warm-wet teleconnection persisted through the end of the last glacial period. Peak aridification occurred at ~23 ka and a gradual increase in moisture thereafter was interrupted by an abrupt drying event at ~16.4 ka, perhaps related to Heinrich event 1. Indian Ocean rainfall increased dramatically during the Bølling period and then decreased continuously and gradually through the Allerød and Younger Dryas. The Holocene began abruptly with increased precipitation at 11.4 ka and was followed by a major but short-lived drying during the Preboreal Oscillation at ~11.2 ka. M1-5 is highly correlated to the Dongge Cave record from 15.5 - 11 ka, suggesting much of the Indian Ocean monsoon region responded similarly to the major climate changes of the last deglaciation. The transitions into the Younger Dryas and to a lesser extent the Bølling are remarkably gradual in M1-5, as they are in all other Asian speleothem records, occurring over several centuries. These gradual transitions are in striking contrast to high-resolution records from around the North Atlantic basin where the transitions are extremely abrupt and generally occur in under a century. This spatially variable pattern of climate change is consistent with an Atlantic origin for these deglacial climate events.
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