TY  - JOUR
A1  - Hua, Quan
A1  - Cook, Duncan
A1  - Fohlmeister, Jens Bernd
A1  - Penny, Dan
A1  - Bishop, Paul
A1  - Buckman, Solomon
T1  - Radiocarbon Dating of a Speleothem Record of Paleoclimate for Angkor, Cambodia
JF  - Radiocarbon : an international journal of cosmogenic isotope research
N2  - We report the chronological construction for the top portion of a speleothem, PC1, from southern Cambodia with the aim of reconstructing a continuous high-resolution climate record covering the fluorescence and decline of the medieval Khmer kingdom and its capital at Angkor (similar to 9th-15th centuries AD). Earlier attempts to date PC1 by the standard U-Th method proved unsuccessful. We have therefore dated this speleothem using radiocarbon. Fifty carbonate samples along the growth axis of PC1 were collected for accelerator mass spectrometry (AMS) analysis. Chronological reconstruction for PC1 was achieved using two different approaches described by Hua et al. (2012a) and Lechleitner et al. (2016a). Excellent concordance between the two age-depth models indicates that the top similar to 47 mm of PC1 grew during the last millennium with a growth hiatus during similar to 1250-1650 AD, resulting from a large change in measured C-14 values at 34.4-35.2 mm depth. The timing of the growth hiatus covers the period of decades-long droughts during the 14th-16th centuries AD indicated in regional climate records.
KW  - Angkor
KW  - chronological construction
KW  - radiocarbon
KW  - Southeast Asia
KW  - tropical speleothems
Y1  - 2017
U6  - https://doi.org/10.1017/RDC.2017.115
SN  - 0033-8222
SN  - 1945-5755
VL  - 59
IS  - Special Issue 6 / 2
SP  - 1873
EP  - 1890
PB  - The University of Arizona, Department of Geosciences
CY  - Tucson, Ariz.
ER  -