globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2017.03.018
论文题名:
Shell oxygen isotope values and sclerochronology of the limpet Patella vulgata Linnaeus 1758 from northern Iberia: Implications for the reconstruction of past seawater temperatures
作者: Gutiérrez-Zugasti I.; Suárez-Revilla R.; Clarke L.J.; Schöne B.R.; Bailey G.N.; González-Morales M.R.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2017
卷: 475
起始页码: 162
结束页码: 175
语种: 英语
英文关键词: Geochemistry ; Growth patterns ; Palaeoclimate ; Seasonality ; Shells
英文摘要: Understanding environmental conditions faced by hunter-fisher-gatherers during the Pleistocene and Holocene, and interpretation of subsistence strategies, social organisation and settlement patterns, are key topics for the study of past human societies. In this respect, oxygen isotope values (δ18O) of mollusc shell calcium carbonate can provide important information on palaeoclimate and the seasonality of shell collection at archaeological sites. In this paper, we tested P. vulgata shells from northern Iberia as a paleoclimate archive through the study of shell oxygen isotope values and sclerochronology of modern samples. Results showed that limpets formed their shells close to isotopic equilibrium, with an average offset between measured and predicted values of 0.36‰. This offset is significantly reduced with respect to those reported in previous studies, probably due to the use of highly resolved data on the isotopic composition of the water when calculating predicted values. Despite large intra-specific variability, shell growth patterns of P. vulgata revealed a common pattern of higher growth in spring and a growth cessation/slowdown in summer and winter. The seasonal growth cessation/slowdown did not exceed three months. Therefore, a correct interpretation of the season of shell collection is still possible. Reconstructed seawater temperature exhibited a high correlation with instrumental temperature (R2 = 0.68 to 0.93; p < 0.0001). Despite periods of growth cessation/slowdown, mean seawater temperatures and annual ranges were reconstructed accurately. As demonstrated here, seawater temperature can be reconstructed with a maximum uncertainty of ± 2.7 °C. Therefore, our study shows that oxygen isotope values from P. vulgata can be used for the reconstruction of paleoclimate and the season of shell collection. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67858
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作者单位: Instituto Internacional de Investigaciones Prehistóricas de Cantabria, Universidad de Cantabria, Edificio Interfacultativo, Avda. Los Castros s/n., Santander, Spain; School of Science and the Environment, Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, United Kingdom; Institute of Geosciences, University of Mainz, Johann-Joachim-Becherweg 21, Mainz, Germany; Department of Archaeology, University of York, King's Manor, York, United Kingdom

Recommended Citation:
Gutiérrez-Zugasti I.,Suárez-Revilla R.,Clarke L.J.,et al. Shell oxygen isotope values and sclerochronology of the limpet Patella vulgata Linnaeus 1758 from northern Iberia: Implications for the reconstruction of past seawater temperatures[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2017-01-01,475
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