(Supplementary Table 1) 230Th/U results for stalagmite Cuba Grande (CG) from Pinar del Rio, supplementary data to: Fensterer, Claudia; Scholz, Denis; Hoffmann, Dirk; Mangini, Augusto; Pajon, Jesus M (2010): 230Th/U-dating of a late Holocene low uranium speleothem from Cuba. IOP Conference Series: Earth and Environmental Science, 9(1), 012015
We present 22 U-series ages for a stalagmite from north-western Cuba based on multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS) and thermal ionisation mass spectrometry (TIMS). Our results reveal that the stalagmite continuously grew within the last ~1400a. Low uranium content...
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| Main Authors: | , , |
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| Other Authors: | , |
| Format: | Book/Monograph Research Data |
| Language: | English |
| Published: |
Bremen/Bremerhaven
PANGAEA - Data Publisher for Earth & Environmental Science
2010-04-12
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| DOI: | 10.1594/PANGAEA.736630 |
| Subjects: | |
| Online Access: | Resolving-System, Volltext: http://dx.doi.org/10.1594/PANGAEA.736630 Resolving-System, Volltext: http://nbn-resolving.de/urn:nbn:de:tib-10.1594/PANGAEA.7366307 |
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| 245 | 1 | 0 | |a (Supplementary Table 1) 230Th/U results for stalagmite Cuba Grande (CG) from Pinar del Rio, supplementary data to: Fensterer, Claudia; Scholz, Denis; Hoffmann, Dirk; Mangini, Augusto; Pajon, Jesus M (2010): 230Th/U-dating of a late Holocene low uranium speleothem from Cuba. IOP Conference Series: Earth and Environmental Science, 9(1), 012015 |
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| 500 | |a This dataset is supplement to doi:10.1088/1755-1315/9/1/012015 | ||
| 520 | |a We present 22 U-series ages for a stalagmite from north-western Cuba based on multi-collector inductively coupled plasma mass spectrometry (MC-ICPMS) and thermal ionisation mass spectrometry (TIMS). Our results reveal that the stalagmite continuously grew within the last ~1400a. Low uranium content of the sample and thus, extremely low 230Th concentrations limit the precision and accuracy of 230Th/U-dating by TIMS. Samples measured by MC-ICPMS show a high variability of 232Th content along the growth axis with some sections significantly affected by initial 230Th from a detrital phase. An a-priori bulk earth ratio for (238U/232Th) cannot be used to accurately account for this initial 230Th. Using an age model based on the 230Th/U ages determined on samples with low or negligible 232Th concentration, we find that the (238U/232Th) activity ratio of the detrital phase is an order of magnitude larger than the bulk earth value, indicating the importance of an accurately determined correction factor. | ||
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