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This is the
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International
Journal of
Speleology

Since 1964

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print 0392 6672
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The International Journal of Speleology has been included in the following ISI Thomson Reuters products beginning with volume 36(1) 2007: Science Citation Index-Expanded including the Web of Science, ISI Alerting Service, Current Contents/Physical, Chemical & Earth Sciences


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<< Volume 37 (2) - Year 2008 View PDF Now  
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Late Pleistocene cryogenic calcite spherolites from the Malachitdom Cave (NE Rhenish Slate Mountains, Germany): origin, unusual internal structure and stable C-O isotope composition.
Detlev Konrad Richter  -  Dana Felicitas Christine Riechelmann.
Pages: from 119 to 129
Cryogenic calcites yielded U-series ages in the range from 15.61±0.20 ka to 14.48±0.12 ka, which is the youngest age obtained so far for this type of cryogenic cave carbonates in Europe. Most of these particles of the Malachitdom Cave (NE Brilon, Sauerland, North Rhine-Westphalia) are complex spherolites usually smaller than 1 cm. They show δ13C-values between –1 and –5 ‰ VPDB and δ18O-values ranging from –7 to –16 ‰ VPDB, the δ13C-values increase and the δ18O-values decrease from centre to border. The complex spherolites are interpreted to be formed in slowly freezing pools of residual water on ice, a situation that repeatedly occurred during the change of glacial to interglacial periods in the periglacial areas of Central Europe. After the melting of the caveice, the complex spherolites make up one type of cryogenic calcite particles in the arenitic to ruditic sediment.

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