Salvato in:
| Autori principali: | , , , , , , , , , |
|---|---|
| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
2020
|
| Soggetti: | |
| Accesso online: | https://doi.org/10.1594/PANGAEA.915000 |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867170475295113216 |
|---|---|
| author | Warken, Sophie F Scholz, Denis Vieten, Rolf-Martin Winter, Amos Spötl, Christoph Miller, Thomas E Jochum, Klaus Peter Frank, Norbert Schröder-Ritzrau, Andrea Mangini, Augusto |
| author_facet | Warken, Sophie F Scholz, Denis Vieten, Rolf-Martin Winter, Amos Spötl, Christoph Miller, Thomas E Jochum, Klaus Peter Frank, Norbert Schröder-Ritzrau, Andrea Mangini, Augusto |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We present results of Th/U dating, stable isotope and trace element data from a speleothem from Puerto Rico. Th/U dating was performed using isotope dilution MC-ICPMS. Activity ratios were corrected for initial Th assuming an detrital weight ratio 232Th/238U = 0.154 ± 0.038 (corresponding to an activity ratio of the detritus in secular equilibrium of (230Th/232Th)detr = 19.79 ± 4.93), and secular equilibrium of the detritus. Ages are calculated using the decay constants by Cheng et al. (2000)). Uncertainties are given as 2σ- range, and do not include half-life uncertainties. Th/U dating shows that stalagmite PR-LA-1 covers the period from 15.4 to 46.2 ka with a growth interruption between 35.5 and 41.1 ka. Stable isotope samples were drilled with a spatial resolution of 1 mm and measured using an IRMS equipped with a Gasbench. Element/Calcium ratios of the speleothem were measured by laser ablation ICPMS and were reduced to the resolution of the stable isotope records. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_915000 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Stable isotope, trace element and radiometric dating data covering 46.2-15.5 ka BP from stalagmite PR-LA-1 (Cueva Larga, Puerto Rico) Warken, Sophie F Scholz, Denis Vieten, Rolf-Martin Winter, Amos Spötl, Christoph Miller, Thomas E Jochum, Klaus Peter Frank, Norbert Schröder-Ritzrau, Andrea Mangini, Augusto speleothem; Stable isotopes; trace elements We present results of Th/U dating, stable isotope and trace element data from a speleothem from Puerto Rico. Th/U dating was performed using isotope dilution MC-ICPMS. Activity ratios were corrected for initial Th assuming an detrital weight ratio 232Th/238U = 0.154 ± 0.038 (corresponding to an activity ratio of the detritus in secular equilibrium of (230Th/232Th)detr = 19.79 ± 4.93), and secular equilibrium of the detritus. Ages are calculated using the decay constants by Cheng et al. (2000)). Uncertainties are given as 2σ- range, and do not include half-life uncertainties. Th/U dating shows that stalagmite PR-LA-1 covers the period from 15.4 to 46.2 ka with a growth interruption between 35.5 and 41.1 ka. Stable isotope samples were drilled with a spatial resolution of 1 mm and measured using an IRMS equipped with a Gasbench. Element/Calcium ratios of the speleothem were measured by laser ablation ICPMS and were reduced to the resolution of the stable isotope records. |
| title | Stable isotope, trace element and radiometric dating data covering 46.2-15.5 ka BP from stalagmite PR-LA-1 (Cueva Larga, Puerto Rico) |
| topic | speleothem; Stable isotopes; trace elements |
| url | https://doi.org/10.1594/PANGAEA.915000 |