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izvor podataka: crosbi

Comparison of 14C and 230Th/234U dating of speleothems from submarine caves in the Adriatic Sea (Croatia) (CROSBI ID 106845)

Prilog u časopisu | izvorni znanstveni rad

Surić, Maša ; Juračić, Mladen ; Horvatinčić, Nada Comparison of 14C and 230Th/234U dating of speleothems from submarine caves in the Adriatic Sea (Croatia) // Acta carsologica, 33 (2004), 2; 239-248-x

Podaci o odgovornosti

Surić, Maša ; Juračić, Mladen ; Horvatinčić, Nada

engleski

Comparison of 14C and 230Th/234U dating of speleothems from submarine caves in the Adriatic Sea (Croatia)

Among the 16 speleothems that were collected from 7 submarine caves and pits for the purpose of 14C and U-Th dating and reconstructing sea-level changes, two speleothems were dated by both methods. Different environmental conditions during the speleothem deposition and after the submergence resulted with different appropriateness for speleothem dating by these techniques. Well preserved speleothems gave reliable results by both methods, while U-Th method showed disadvantage in the case of carbonates contaminated with detrital material, as well as in the case of carbonate from marine overgrowth that covers the speleothems. However, U-Th method using MC ICPMS technique which requires only 100-300 mg of sample per analysis (instead of ca. 30 g for 14C conventional method), offers better age resolution that is essential for speleothem dating.

14C dating; U-Th dating; submerged speleothems; submarine karst; Adriatic Sea; Croatia

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Podaci o izdanju

33 (2)

2004.

239-248-x

objavljeno

0583-6050

Povezanost rada

Fizika, Geologija