NOAA/WDS Paleoclimatology - Heshang Cave, China 8.2ka Subannual Stalagmite Stable Isotope Data
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 8553 to 7784 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
Dataset Citation
- Cite as: Liu, Y.-H.; Henderson, G.M.; Hu, C.-Y.; Mason, A.J.; Charnley, N.; Johnson, K.R.; Xie, S.-C. (2013-05-01): NOAA/WDS Paleoclimatology - Heshang Cave, China 8.2ka Subannual Stalagmite Stable Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/fj4f-my05. Accessed [date].
- Please refer to Credit tab for full citation information.
Dataset Identifiers
- doi:10.25921/fj4f-my05
- noaa-cave-14312
- NCEI DSI 1200_02
- NCEI DSI 1200_01
ISO 19115-2 Metadata
noaa-cave-14312
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Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Data Center Contact NOAA World Data Service for Paleoclimatology 828-271-4800 paleo@noaa.gov |
Coverage Description | Date Range: 8553 cal yr BP to 7784 cal yr BP; |
Time Period | -6603 to -5834 |
Spatial Bounding Box Coordinates |
West: 110.416
East: 110.416
South: 30.45
North: 30.45
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns |
Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information | STUDY NOTES: The dataset is a sub-annual resolution d18O and d13C record for the 8.2kyr event from Heshang cave in the Yangtze Valley in central China. Stable isotope samples were micro-milled continuously at ~40 um intervals from 235.3 cm to 231.9 cm of HS-4 with an average resolution of ~0.3 years. A total of 869 samples were measured on a Thermo Delta V Advantage Isotope Ratio Mass spectrometer fitted with a Kiel Carbonate Device IV at Oxford Department of Earth Sciences, with a precision of ±0.08 per mil. The chronology of stalagmite HS-4 during 8.2 kyr event has been established independently by U-Th dating (9 samples measured by MC-ICP-MS at Oxford University) and layer counting. Full details of the chronology and age model are provided in Supplementary Information of Liu et al. 2013. ABSTRACT SUPPLIED BY ORIGINATOR: An abrupt cooling event in the North Atlantic region 8,200 years ago affected climate throughout the Northern Hemisphere. The event is well constrained in Greenland ice cores, but lack of resolution in records from other regions has challenged our understanding of the timing and nature of the associated teleconnections. Speleothem records from East Asia have suggested monsoonal changes associated with the 8,200 year event, but the nature of these changes remains controversial. Here we assess changes in East Asian precipitation during the event from a sub-annually resolved stalagmite record from central China. Using d18O and Mg/Ca measurements of the speleothem carbonate, we show that climate dried significantly about 8,200 years ago. Based on our annual-layer-counted chronology, we show that the dry event lasted 150 years, with a central period of pronounced aridity that lasted 70 years. The duration and evolution of the event is indistinguishable from that observed in the Greenland ice cores. We therefore conclude that an effective and rapid atmospheric teleconnection exists between the North Atlantic and the monsoon system in warm climates similar to today's. |
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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Last Modified: 2023-09-01
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov