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14C AMS Dating of Wooden Cores from Historic Buildings for Archaeological and Dendrochronological Research in High Asia

Published online by Cambridge University Press:  09 February 2016

A Scharf*
Affiliation:
Erlangen AMS Laboratory, Physikalisches Institut Abt.IV, Erwin-Rommel-Str. 1, Univ. Erlangen, 91058 Erlangen, Germany
A Bräuning
Affiliation:
Institute for Geography, University Erlangen-Nuremberg, Kochstraße 4/4, 91054 Erlangen, Germany
W Kretschmer
Affiliation:
Erlangen AMS Laboratory, Physikalisches Institut Abt.IV, Erwin-Rommel-Str. 1, Univ. Erlangen, 91058 Erlangen, Germany
B Wegner
Affiliation:
Erlangen AMS Laboratory, Physikalisches Institut Abt.IV, Erwin-Rommel-Str. 1, Univ. Erlangen, 91058 Erlangen, Germany
F Darragon
Affiliation:
Sichuan University Unicorn Heritage Institute, Chengdu, China
*
2Corresponding author. Email: c14@physik.uni-erlangen.de.

Abstract

We had the opportunity to collect valuable wooden core samples from historic monasteries, temples, and secular buildings in 4 regions of High Asia, namely Dolpo (Nepal), ancient Nyangpo, Gyalrong/Minyag, and Lhasa and surroundings (all on the Tibetan Plateau, China). Tree species collected for dating include Pinus wallichiana (Dolpo), Juniperus tibetica, Pinus densata and several species of the genera Picea (spruce), Larix (larch), and Abies (fir) on the Tibetan Plateau, which could not always be determined to the species level due to the parallel occurrence of species of the same genus in these regions. Some of the wood samples were successfully dendro-dated with local tree-ring chronologies, but many could not, indicating a potentially higher age than the existing local chronologies. By accelerator mass spectrometry (AMS) dating and wiggle-matching 199 14C samples from 73 collected timbers, it was possible to date these wood samples with high precision, and important information about the possible time of construction of these important historic buildings was obtained for the first time. Floating chronologies of 14C-dated wood span the periods AD 650 to 900 in Dolpo and ∼200 BC to AD 420 on the Tibetan Plateau. Besides dating of the wood samples from these historic monuments, 14C AMS dating with wiggle-matching gives the opportunity to extend the range of the currently existing regional tree-ring chronologies for future environmental reconstructions on the Tibetan Plateau and the Himalayas.

Type
Archaeology of Eurasia and Africa
Copyright
Copyright © 2013 by the Arizona Board of Regents on behalf of the University of Arizona 

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References

Bräuning, A. 2001. Climate history of the Tibetan Plateau during the last 1000 years derived from a network of Juniper chronologies. Dendrochronologia 19(1):127–37.Google Scholar
Bräuning, A, Mantwill, B. 2004. Increase of Indian Summer Monsoon rainfall on the Tibetan plateau recorded by tree rings. Geophysical Research Letters 31: L24205, doi:10.1029/2004GL020793.CrossRefGoogle Scholar
Bräuning, A, Scharf, A, Kretschmer, W, Gierl, S, Leichmann, K, Burchardt, I. 2011. The development of a long pine (Pinus wallichiana) chronology from western Nepal from living trees and 14C-dated historic wood samples. In: TRACE - Tree Rings in Archaeology, Climatology and Ecology. Volume 9. p 110–3.Google Scholar
Bräuning, A, Scharf, A, Kretschmer, W, Burchardt, I. 2013. Beyond dating: archeological wood as a source of information of environmental changes in High Asia. TRACE- Tree Rings in Archaeology, Climatology and Ecology. Volume 11, in press.Google Scholar
Bronk Ramsey, C. 2009. Bayesian analysis of radiocarbon dates. Radiocarbon 51(1):337–60.Google Scholar
Darragon, F. 2005. Secret Towers of the Himalayas. Unicorn Foundation. 156 p.Google Scholar
Darragon, F. 2009. The Star-shaped Towers of the Tribal Corridor of southwest China. Journal of Cambridge Studies 4(2):6783.Google Scholar
Darragon, F. 2013. A detailed study of the ancient Cross-shaped Towers of southeast Tibet, and how their mapping can help define the borders of the ancient kingdoms of Nyangpo and Kongpo. In: Proceedings of the IATS (International Association for Tibetan Studies). Mongolia, Ulaan Baatar, 21–27 July 2013.Google Scholar
Grießinger, J, Bräuning, A, Helle, G, Thomas, A, Schleser, GH. 2011. Late Holocene Asian summer monsoon variability reflected by δ18O in tree-rings from Tibetan junipers. Geophysical Research Letters 38: L03701, doi:10.1029/2010GL045988.Google Scholar
Gutschow, N. 2001. Kgbeni: structural analysis of dendrochronological data. In: Pohle, P, Haffner, W, editors. Kgbeni. Contributions to the village's history and geography. Giessener Geographische Schriften 77:125–46.Google Scholar
He, M, Yang, B, Bräuning, A, Wang, J, Wang, Z. 2013. Tree-ring-derived millennial precipitation record for the southern Tibetan Plateau and its possible driving mechanism. The Holocene 23(1):3645.CrossRefGoogle Scholar
Morgenroth, G, Kerscher, H, Kretschmer, W, Klein, M, Reichel, M, Tully, T, Wrzosok, I. 2000. Improved sample preparation techniques at the Erlangen AMS-facility. Nuclear Instruments and Methods in Physics Research B 172(1–4):416–23.Google Scholar
Reimer, PJ, Baillie, MGL, Bard, E, Bayliss, A, Beck, JW, Blackwell, PG, Bronk Ramsey, C, Buck, CE, Burr, GS, Edwards, RL, Friedrich, M, Grootes, PM, Guilderson, TP, Hajdas, I, Heaton, TJ, Hogg, AG, Hughen, KA, Kaiser, KF, Kromer, B, McCormac, FG, Manning, SW, Reimer, RW, Richards, DA, Southon, JR, Talamo, S, Turney, CSM, van der Plicht, J, Weyhenmeyer, CE. 2009. IntCal09 and Marine09 radiocarbon age calibration curves, 0–50,000 years cal BP. Radiocarbon 51(4): 1111–50.Google Scholar
Rinn, F. 1996. TSAPWin: time series analysis and presentation for dendrochronology and related applications. Version 0.55 User reference, Heidelberg. 76 p.Google Scholar
Schmidt, B, Gruhle, W, Thomalla, E, Khalessi, M, Malla, K. 2001. Dendrochronological dating of timber: a contribution to the architectural history and settlement processes at Kgbeni. In: Pohle, P, Haffner, W, editors. Kgbeni. Contributions to the village's history and geography. Giessener Geographische Schriften 77: 161–8.Google Scholar
Stokes, MA, Smiley, TL. 1968. An Introduction to Tree-Ring Dating. Chicago: The University of Chicago Press. 73 p.Google Scholar
Tarasov, P, Heussner, KU, Wagner, M, Österle, H, Wang, S. 2003. Precipitation changes in Dulan 515 BC–800 AD inferred from tree-ring data related to the human occupation of NW China. Eurasia Antiqua 9:303–21.Google Scholar
Xinguo, X, Wei, W, Wagner, M, Heussner, KU, Tarasov, PE, Griess, B, Shishan, N. 2003. Results of the first archaeological excavation and environmental survey at Fengtai, Qinghai Province, PR China in 2001. Eurasia Antiqua 9:85111.Google Scholar