FN Archimer Export Format
PT J
TI Local Marine Reservoir Age (δr) reconstructed based on the Tsunami Deposit from Pangani Bay (Tanzania)
BT 
AF Soulet, Guillaume
   Maselli, Vittorio
AS 1:1;2:2;
FF 1:PDG-REM-GM-LGS;2:;
C1 IFREMER, GM, F-29280 Plouzané, France
   Department of Earth and Environmental Sciences, Life Sciences Centre, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
C2 IFREMER, FRANCE
   UNIV DALHOUSIE, CANADA
SI BREST
SE PDG-REM-GM-LGS
IN WOS Ifremer UPR
   copubli-int-hors-europe
IF 6.324
TC 0
UR https://archimer.ifremer.fr/doc/00718/83032/87960.pdf
LA English
DT Article
DE ;local marine reservoir age;marine reservoir effect;Pangani Bay (Tanzania);radiocarbon Bayesian analysis;tsunami deposit
AB Quantifying the local marine reservoir age (ΔR) and its change over time is critical for precise radiocarbon calibration of marine samples and for the study of the ocean carbon cycle. ΔR values are scarce for the African coast facing the Indian Ocean, and the few values available were obtained from pre-bomb shells collected during the 19th century. Here, the ΔR value for calibrated year 1110 ± 25 (1σ) CE was reconstructed from radiocarbon dating and Bayesian analysis of marine and terrestrial materials coexisting in a tsunami deposit discovered in Pangani Bay (Tanzania, western Indian Ocean coast). The reconstructed ΔR of –8 ± 40 (1σ, n = 3) is similar to pre-bomb regional estimates and provides new information to investigate regional ΔR change over time. The Bayesian analysis of the dated samples revises the age of the tsunami event found in Pangani Bay to 1064–1157 cal CE (95.4% confidence level) or 1110 ± 25 (1σ) cal CE, about one century younger compared to the previous estimate. Our results indicate that the new ΔR value and the proposed calibration approach can be used to refine existing chronologies in the region, with implications for paleo-environmental reconstructions and archaeological studies of Early Swahili societies. 
PY 2021
PD AUG
SO Radiocarbon
SN 0033-8222
PU Cambridge University Press (CUP)
VL 63
IS 4
UT 000684969800022
BP 1321
EP 1338
DI 10.1017/RDC.2021.47
ID 83032
ER

EF