Stríkis, Nicolás Misailidis; Chiessi, Cristiano Mazur; da Cruz Junior, Francisco William; Vuille, Mathias; Cheng, Hai; de Souza Barreto, Eline A; Mollenhauer, Gesine; Kasten, Sabine; Karmann, Ivo; Edwards, R Lawrence; Bernal, Patricio A; dos Reis Sales, Hamilton (2015): 230Th dating results of speleothem records from two caves, central-eastern and northeastern Brazil [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.847280, In supplement to: Stríkis, NM et al. (2015): Timing and structure of Mega-SACZ events during Heinrich Stadial 1. Geophysical Research Letters, 42(13), 5477-5484, https://doi.org/10.1002/2015GL064048
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Source:
Project(s):
Coverage:
Median Latitude: -14.382995 * Median Longitude: -42.814480 * South-bound Latitude: -16.147770 * West-bound Longitude: -44.610550 * North-bound Latitude: -12.618220 * East-bound Longitude: -41.018410
Event(s):
LSF3 * Latitude: -16.147770 * Longitude: -44.610550 * Location: Central-eastern Brazil * Method/Device: Speleothem sample (SPS) * Comment: Lapa Sem Fim cave
Comment:
d234U = ([234U/238U]activity - 1)x1000.
d234Uinitial was calculated based on 230Th age (T), i.e., d234Uinitial = d234Umeasured x e**l234xT.
Corrected 230Th ages assume the initial 230Th/232Th atomic ratio of 4.4 ±2.2 x10-6. Those are the values for a material at secular equilibrium, with the bulk earth 232Th/238U value of 3.8. The errors are arbitrarily assumed to be 50%.
B.P. stands for "Before Present" where the "Present" is defined as the year 2000 A.D.
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
488 data points