Late Quaternary eruption of the Ranau Caldera and new geological slip rates of the Sumatran Fault Zone in Southern Sumatra, Indonesia

Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Table 1 Results of the AMS radiocarbon age analysis, on paleosols underlain Ranau tuffs, conducted at BETA Analytic (http://www.radiocarbon.com/)

Sample code		Field descriptionS	Measured radiocarbon age	δ¹³C (‰)	Conventional radiocarbon age (rcy BP)	Calendar age calibration (cal year BP)
Field	BETA	Field descriptionS	Measured radiocarbon age	δ¹³C (‰)	Conventional radiocarbon age (rcy BP)	Median modeled age	2σ–95% Prob.	1σ–65% Prob.
RAN-23A	Beta-396325	Charcoal, black, no sign of contamination	29,230 ± 140 BP	−11.9	29,440 ± 140	33,650	33,830–33,415	33,740–33,545
RAN-14A	Beta-423698	Dark-gray, very-rich organic soil, possibly some contamination	26,630 ± 140 BP	−12.9	26,830 ± 140	30,960	31,085–30,805	31,025–30,885
RAN-10A	Beta-423,697	Gray, organic soil, evidence of more contamination	17,990 ± 70 BP	−14.9	18,160 ± 70	21,915	22,145–21,810	21,990–21,860
RAN-06B	Beta-423,699	Lighter gray, less organic soil, evidence of much contamination	11,650 ± 50 BP	−18.6	11,750 ± 50	13,545	13,585–13,445	13,565–13,470
						13,510
						13,495

The calibration used mathematical approach developed by Talma and Vogel (1993) with reference to SHCAL 13 database (Hogg et al. 2013)