Luminescence of Speleothems in Italian Gypsum Caves: Preliminary Report

Details Luminescence of Speleothems in Italian Gypsum Caves: Preliminary Report Luminescence of Speleothems in Italian Gypsum Caves: Preliminary Report

2009-09-09

arxiv.org/abs/0909.1700v1

Physics

Geophysics

Scientific paper

The luminescence of 3 speleothem samples from the Acquafredda karst system and 1 from the Novella Cave (Gessi Bolognesi Natural Park, Italy) has been recorded using excitation by impulse Xe- lamp. All these carbonate speleothems are believed to be formed only from active CO2 from the air, because the bedrock of the cave consist of gypsum and does not contain carbonates. The obtained photos of luminescence record the climate changes during the speleothem growth. U/Th and 14C dating proved that studied speleothems started to grow since about 5,000 years ago. The detailed analyses of the luminescence records is still in progress.

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