Paleoclimatic implications of radiocarbon dating of speleothems from the Cracow-Wielun Upland, southern Poland

被引：20

作者：

Pazdur, A ^{[1
]}

Pazdur, MF ^{[1
]}

Pawlyta, J ^{[1
]}

Gorny, A ^{[1
]}

Olszewski, M ^{[1
]}

机构：

[1] ACAD MIN & MET,GEOL MUSEUM,PL-30059 KRAKOW,POLAND

来源：

RADIOCARBON | 1995年 / 37卷 / 02期

关键词：

D O I：

10.1017/S0033822200030538

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

We report preliminary results of a long-term systematic study intended to gather paleoclimatic records from precisely dated speleothems. The research project is limited to speleothems deposited in caves of the Cracow-Wielun Upland, the largest and best-explored karst region in Poland, covering ca. 2900 km(2) with >1000 caves. Speleothem samples were selected from collections of the Geological Museum of the Academy of Mining and Metallurgy in Cracow. Radiocarbon dates of these samples from ca. 45-20 ka BP almost exactly coincide with age range of the Interplenivistulian. A break in speleothem formation between ca. 20 and 10 ka up may be interpreted as a result of serious climatic deterioration associated with the maximum extent of the last glaciation. We observed differences among C-14, U/Th and AAR dating results. Changes of delta(13)C and delta(18)O in speleothems that grew between ca. 30 and 20 ka sp may be interpreted as changes of paleoclimatic conditions.

引用

页码：103 / 110

页数：8

共 29 条

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[Anonymous], 1988, PROCESSES KARST SYST

[2]

[Anonymous], 1990, ABSOLUTE AGE DETERMI

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