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Invertebrate fossils from cave sediments: a new proxy for pre-Quaternary paleoenvironments

Domenii publicaţii > Ştiinţele pământului şi planetare + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: O.T. Moldovan, A. Mihevc, L. Miko, S. Constantin, I.N. Meleg, A. Petculescu and P. Bosak

Editorial: Biogeosciences, 8, p.1825-1837, 2011.

Rezumat:

Five samples of clastic sediments from interior cave facies taken in three Slovenian relic caves (Trhlovca, Raciska pecina, and a cave in Crnotice Quarry, Classical Karst, SW Slovenia) provided invertebrate fossil remains. Most of them belong to Oribatida but sparse individuals of Cladocera and insects were also identified. They represent the first pre-Quaternary invertebrate fossils found in sediments of continental temperate climate. The Pliocene/Pleistocene age of the sediments was determined by paleomagnetic dating chronologically calibrated by micro-mammal biostratigraphy. Invertebrate fossils could be validated as new proxy for the study of cave sediments due to their suitability for ecological and paleogeographic correlations in caves and outside the caves. They also bring additional information about cave formation and karst hydraulic regime in the area. Although the number of remains was very low, it is evidence that climatic conditions in caves allow a better preservation of fossil remains of some groups as compared to most of the surface habitats. This may open a new direction in the study of cave sediments.

Cuvinte cheie: cave sediments, invertebrate fossils, Oribatida, paleoenvironments

URL: http://www.biogeosciences.net/8/1825/2011/bg-8-1825-2011.pdf