LATE HOLOCENE LEVEL FLUCTUATIONS OF THE LAKE ILAY IN JURA, FRANCE - SEDIMENT AND MOLLUSK EVIDENCE AND CLIMATIC IMPLICATIONS

被引：14

作者：

MAGNY, M

MOUTHON, J

RUFFALDI, P

机构：

[1] Laboratoire de Chrono-Ecologie, UPR 7557 du CNRS-ERA 35, Besançon Cedex, 25 030, 16, route de Gray

来源：

JOURNAL OF PALEOLIMNOLOGY | 1995年 / 13卷 / 03期

关键词：

LAKE-LEVEL FLUCTUATIONS; SEDIMENTOLOGY; MALACOLOGY; PALYNOLOGY; HOLOCENE; PALEOCLIMATES;

D O I：

10.1007/BF00682766

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The level fluctuations of Lake Ilay, Jura (France) during the last three millennia are reconstructed from sedimentological and malacological analyses of a core that is well-dated by tree-ring, radiocarbon and pollen datings. Changes in sediment facies, in carbonate concretion assemblages and in mollusc assemblages highlight a major lowering phase at c. 1550 BP and minor lowering phases at c. 2800 BP and shortly before AD 1394. Rises in lake level developed during the early Subatlantic and between c. 1500 and 1000 BP. These data are in good agreement with other proxy data from higher European and American latitudes. These correlations support the climatic origin of the level fluctuations of the Lake Ilay during the late Holocene. They suggest that the mediaeval climatic optimum is centred rather in the early than the late Middle Age.

引用

页码：219 / 229

页数：11

共 35 条

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