Buckingham, Frances; Carolin, Stacy A; Partin, Jud; Adkins, Jess F; Cobb, Kim M; Day, Christopher (2022): Measured SC02 U/Th isotope activity ratios, calculated ages and monte-carlo derived age error, and Oxcal deposition model U-Th ages and associated age error [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945483, In: Buckingham, F et al. (2022): Mulu Borneo stalagmite SC02 U/Th dating and oxygen and carbon stable isotopes, 19.5-10.7 ky BP [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.945484
Always quote citation above when using data! You can download the citation in several formats below.
Published: 2022-06-17 • DOI registered: 2022-08-04
Abstract:
U-Th ages were calculated using the initial detrital 230Th/232Th value of 111 ± 41 ppm, which was previously calculated for SC02 based on two isochrons measured in separate stalagmites from Secret Cave in Mulu (Carolin et al., 2013). A Matlab Monte Carlo script was used to calculated the absolute age and age errors associated with each U-Th sample using the 234U and 230Th half lives presented in Cheng et al. (2013). The Poisson-process deposition model feature in OxCal(v4.4) was used to interpolate between the eighteen U/Th ages to produce an age model (Bronk Ramsey, 2008; Bronk Ramsey and Lee, 2013).
Keyword(s):
Related to:
Buckingham, Frances; Carolin, Stacy A; Partin, Jud; Adkins, Jess F; Cobb, Kim M; Day, Christopher; Ding, Quinghua; He, Chengfei; Liu, Zhengyu; Otto-Bliesner, Bette L; Roberts, William H G; Lejau, Syria; Malang, Jenny (2022): Termination 1 Millennial-Scale Rainfall Events Over the Sunda Shelf. Geophysical Research Letters, 49(5), https://doi.org/10.1029/2021GL096937
Other version:
Buckingham, Frances; Carolin, Stacy A; Partin, Jud; Adkins, Jess F; Cobb, Kim M; Day, Christopher (2022): Mulu Borneo stalagmite SC02 d18O and d13C 19.5-10.7 ky BP. Zenodo, https://doi.org/10.5281/zenodo.6026615
Further details:
Bronk Ramsey, Christopher; Lee, Sharen (2013): Recent and Planned Developments of the Program OxCal. Radiocarbon, 55(2), 720-730, https://doi.org/10.1017/S0033822200057878
Carolin, Stacy A; Cobb, Kim M; Adkins, Jess F; Clark, Brian; Conroy, Jessica L; Lejau, Syria; Malang, Jenny; Tuen, Andrew A (2013): Varied Response of Western Pacific Hydrology to Climate Forcings over the Last Glacial Period. Science, 340(6140), 1564-1566, https://doi.org/10.1126/science.1233797
Carolin, Stacy A; Cobb, Kim M; Lynch-Stieglitz, Jean; Moerman, Jessica W; Partin, Judson W; Lejau, Syria; Malang, Jenny; Clark, Brian; Tuen, Andrew A; Adkins, Jess F (2016): Northern Borneo stalagmite records reveal West Pacific hydroclimate across MIS 5 and 6. Earth and Planetary Science Letters, 439, 182-193, https://doi.org/10.1016/j.epsl.2016.01.028
Cheng, Hai; Edwards, R Lawrence; Shen, Chuan-Chou; Polyak, Victor J; Asmerom, Yemane; Woodhead, Jon D; Hellstrom, John C; Wang, Yongjin; Kong, Xinggong; Spötl, Christoph; Wang, Xianfeng; Alexander, E Calvin (2013): Improvements in 230Th dating, 230Th and 234U half-life values, and U–Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry. Earth and Planetary Science Letters, 371-372, 82-91, https://doi.org/10.1016/j.epsl.2013.04.006
Ramsey, Christopher Bronk (2008): Deposition models for chronological records. Quaternary Science Reviews, 27(1-2), 42-60, https://doi.org/10.1016/j.quascirev.2007.01.019
Coverage:
Latitude: 4.100000 * Longitude: 114.880000
Minimum DISTANCE: 3.8 cm * Maximum DISTANCE: 27.1 cm
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Carolin, Stacy A | Sample ID labels begin with a two-letter pair (aa, ab, etc.) that define the sample batch followed by a two-digit number specifying the sample number in the particular batch | ||
| 2 | DISTANCE | Distance | cm | Carolin, Stacy A | Geocode – distance from the top of the stalagmite | |
| 3 | Uranium-238 | 238U | µg/kg | Carolin, Stacy A | ppb | |
| 4 | Thorium-232 | 232Th | µg/kg | Carolin, Stacy A | ppb | |
| 5 | Thorium-232/Thorium-230 ratio | 232Th/230Th | Carolin, Stacy A | Measured | ||
| 6 | Uranium-234/Uranium-238 activity ratio | (234U/238U) | Carolin, Stacy A | |||
| 7 | Uranium-234/Uranium-238 activity ratio, error | (234U/238U) e | ± | Carolin, Stacy A | 1s | |
| 8 | Thorium-230/Uranium-238 activity ratio | (230Th/238U) | Carolin, Stacy A | |||
| 9 | Thorium-230/Uranium-238 activity ratio, error | (230Th/238U) e | ± | Carolin, Stacy A | 1s | |
| 10 | Thorium-232/Uranium-238 activity ratio | (232Th/238U) | Carolin, Stacy A | |||
| 11 | Thorium-232/Uranium-238 activity ratio, error | (232Th/238U) e | ± | Carolin, Stacy A | 1s | |
| 12 | Age, dated | Age dated | ka | Carolin, Stacy A | Uncorrected | raw age (ka from date analyzed), calculated ignoring any initial 230Th, 234U from detrital contaminants. All ages calculated using half-lives found in Cheng et al. (2013). |
| 13 | Thorium-230/Thorium-232 ratio (0) | 230Th/232Th(0) | Carolin, Stacy A | initial atomic ratio used to calculate mean age (Carolin et al., 2013) | ||
| 14 | Thorium-230/Thorium-232 ratio (0) | 230Th/232Th(0) | Carolin, Stacy A | minimum initial atomic ratio (uniform distribution) used to calculate age error (Carolin et al., 2013) | ||
| 15 | Thorium-230/Thorium-232 ratio (0) | 230Th/232Th(0) | Carolin, Stacy A | maximum initial atomic ratio (uniform distribution) used to calculate age error (Carolin et al., 2013) | ||
| 16 | Age, dated | Age dated | ka | Carolin, Stacy A | Corrected | corrected for initial detrital Th contamination (ka from date analyzed) |
| 17 | Year of analysis | Year analysis | a AD | Carolin, Stacy A | C.E. year radiogenic isotopes measured in sample | |
| 18 | Calendar age | Cal age | ka BP | Carolin, Stacy A | Monte Carlo method | Age before 1950 C.E. |
| 19 | Calendar age, error to older | Cal age e + | ka BP | Carolin, Stacy A | Monte Carlo method | 95% confidence intervals for the ages are calculated using an internally developed Monte Carlo simulation with N=1e4 |
| 20 | Calendar age, error to younger | Cal age e - | ka BP | Carolin, Stacy A | Monte Carlo method | 95% confidence intervals for the ages are calculated using an internally developed Monte Carlo simulation with N=1e4 |
| 21 | Uranium-234/Uranium-238 activity ratio (0) | 234U/238U(0) | Carolin, Stacy A | Calculated, using the corrected age | Initial (234/238) | |
| 22 | Uranium-234/Uranium-238 activity ratio (0), positive error | (234U/238U(0)) e+ | Carolin, Stacy A | Calculated, using the corrected age | 95% confidence intervals for the initial (234/238) | |
| 23 | Uranium-234/Uranium-238 activity ratio (0), negative error | (234U/238U(0)) e- | Carolin, Stacy A | Calculated, using the corrected age | 95% confidence intervals for the initial (234/238) | |
| 24 | Calendar age, mean | Cal age mean | ka BP | Carolin, Stacy A | OxCal 4.4 Poisson-process deposition model feature | |
| 25 | Calendar age, minimum/young | Cal age min | ka BP | Carolin, Stacy A | OxCal 4.4 Poisson-process deposition model feature | 95% confidence range |
| 26 | Calendar age, maximum/old | Cal age max | ka BP | Carolin, Stacy A | OxCal 4.4 Poisson-process deposition model feature | 95% confidence range |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
450 data points