13 C and 18 O of wood from the Roman siege rampart in Masada, Israel (Ad 70-73): Evidence for a less arid climate for the region

Details 13 C and 18 O of wood from the Roman siege rampart in Masada, Israel (Ad 70-73): Evidence for a less arid climate for the region 13 C and 18 O of wood from the Roman siege rampart in Masada, Israel (Ad 70-73): Evidence for a less arid climate for the region

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994gecoa..58.3535y&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 58, Issue 16, pp.3535-3539

Mathematics

Logic

4

Scientific paper

The isotopic ratios 13 C / 12 C and 18 O / 16 O of cellulose from tamarix trees which were used by the Roman army as a groundwork of the siege-rampart of Masada ( 70-73) were compared with ratios measured in present-day tamarix trees growing in the Masada region and in central Israel. The ancient tamarix cellulose is depleted in both 13 C and 18 O compared to cellulose from trees growing in the Masada region today. Similar trends were observed on comparing modern tamarix trees growing in the Negev Desert with those growing in the temperate climate of central Israel. Considering the factors that can contribute to the observed changes in isotopic composition, we conclude that the ancient trees enjoyed less arid environmental conditions during their growth compared to contemporary trees in this desert region. This report demonstrates the potential in using combined 18 O and 13 C analyses of archeological plant material as independent indication of regional climatic change in desert areas (where conventional isotopic analyses, such as in tree rings, are impractical).

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