NOAA/WDS Paleoclimatology - Klapferloch Cave, Austria 3000 Year Speleothem 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 Austria, Western Europe. The time period coverage is from 2943 to -47 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: Boch, R.; Spötl, C. (2012-03-10): NOAA/WDS Paleoclimatology - Klapferloch Cave, Austria 3000 Year Speleothem Stable Isotope Data. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/xrf9-zt18. Accessed [date].
- Please refer to Credit tab for full citation information.
Dataset Identifiers
- doi:10.25921/xrf9-zt18
- noaa-cave-12841
- NCEI DSI 1200_02
- NCEI DSI 1200_01
ISO 19115-2 Metadata
noaa-cave-12841
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NOAA National Centers for Environmental Information ncei.info@noaa.gov |
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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: 2943 cal yr BP to -47 cal yr BP; |
Time Period | -993 to 1997 |
Spatial Bounding Box Coordinates |
West: 10.55
East: 10.55
South: 46.95
North: 46.95
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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: High resolution (near annual) 3000 year flowstone stable isotope record from core PFU6 collected in an east Austrian cave. ABSTRACT SUPPLIED BY ORIGINATOR: Several drill cores were obtained from a laminated, actively forming flowstone from a shallow cave in Austria. Highly resolved petrographic and geochemical analyses combined with multi-annual cave monitoring reveal a distinct sensitivity of flowstone growth and composition to late Holocene meteoric precipitation. The regular sub-millimetre-scale lamination consists of thicker, translucent laminae and thinner (organic) inclusion-rich laminae. There is also a macroscopic millimetre-scale banding of darker and lighter bands comprising several laminae. Stable isotope analyses of drill cores and modern calcite precipitates show a pronounced positive covariation of d13C and d18O values indicative of kinetic isotope effects. Comparing the isotope values with petrography shows gradual changes across several of the annual laminae, i.e. changes of several per mille on a multi-annual to decadal timescale. The stable isotope and trace-element composition, as well as the flowstone petrography, are mainly controlled by the variable drip-water discharge controlling the water-film thickness and water residence time on the flowstone surface and consequently the intensity of CO2-degassing, kinetic isotope enrichment and concomitant calcite precipitation. Drill core PFU6 provides an isotope record of the last ca. 3000 years at near-annual resolution. A distinct phase of low C and O isotope values - interpreted as increased discharge and hence higher meteoric precipitation - occurred from ca. 300 to 140 a b2k (second half of the Little Ice Age) and another wet interval occurred around 700 a, corresponding to reported Medieval glacier advances. The Roman Warm Period was also dominated by relatively wet conditions, although significant decadal variability prevailed. Increased precipitation further characterized the intervals from ca. 2480 to 2430 and 2950 to 2770 a. Dry conditions persisted during the Medieval Climate Anomaly, although this trend towards reduced precipitation started earlier. The highest C isotope values of the last 2 ka are recorded around 750 a and another dry phase is centred at 1480 a. This new record shows that inter-annual to decadal oscillations are a dominant mode of variation during the last 3 ka in the Alps. |
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: 2024-02-13
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