Oxygen isotopic composition of fruit carbonate in Lithospermeae and its potential for paleoclimate research in the Mediterranean
Oxygen isotopic composition of fruit carbonate in Lithospermeae and its potential for paleoclimate research in the Mediterranean
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紫草科水果碳酸盐的氧同位素组成及其在地中海古气候研究中的潜力
DOI:
10.1016/j.gloplacha.2009.11.015
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发表时间:
2010
影响因子:
3.9
通讯作者:
Hilger
中科院分区:
文献类型:
--
作者:
Pustovoytov;Hilger
Calcareous pericarps of the tribe Lithospermeae (fam. Boraginaceae) are a common component of archaeobotanical macroremain assemblages in the Mediterranean region. In this study, the relationship between oxygen isotopic composition of fruit biogenic carbonate and climatic conditions was examined. δ18O and δ13C values of biogenic carbonate were measured in modern Lithospermeae fruits from seven Eurasian sites (Berlin, Kirchentellinsfurt, Göttingen, Athens, Ankara, Tbilisi, and Almaty) and in fossil fruits from three archaeological sites in the eastern Mediterranean (Troy, Kumtepe, and Hirbet ez-Zeraqon). Additionally, three14C measurements were performed on ancient fruit carbonate from Hirbet ez-Zeraqon. The δ18O and δ13C values varied from −9 to 5‰ PDB and between −35 and −7‰ PDB respectively. In modern fruits, δ18O of biogenic carbonate was correlated to local summer precipitation amounts (inversely proportional) and summer air temperatures (proportional). In fossil fruits, the δ18O values of carbonate from Troy and Kumtepe were significantly lower than that from Hirbet ez-Zeraqon (ca. −5 vs. 2‰ PDB respectively). The vertical distribution of stable isotopic values and14C dates in cultural layers of Hirbet ez-Zeraqon indicate that fruit biogenic carbonate can persist in sediment without appreciable diagenetic alteration. These findings suggest that biogenic carbonate of Lithospermeae fruits can be useful as a paleoclimate proxy at least in the Mediterranean.
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影响因子:
2.3
作者:
Yang Wang;A. Jahren;R. Amundson
通讯作者:
R. Amundson
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
M. Magaritz
通讯作者:
M. Magaritz
DOI:
--
发表时间:
2001
期刊:
影响因子:
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作者:
Klaus
通讯作者:
Klaus
DOI:
--
发表时间:
2006
期刊:
影响因子:
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作者:
E. Yarnell;Kathy Abascal
通讯作者:
Kathy Abascal
影响因子:
2.3
作者:
A. Jahren;R. Amundson;C. Kendall;P. Wigand
通讯作者:
P. Wigand