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Seasonal and decadal stable isotope evolution recorded by recent tufa deposited on artificial substrates in the Monasterio de Piedra Natural Park (NE Spain) (CROSBI ID 197170)

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Osácar, M. Cinta ; Arenas ; Concha ; Vázquez-Urbez, Martha ; Sancho, Carlos ; Auqué, Luis ; Pardo, Gonzalo, Lojen, Sonja ; Cukrov, Neven Seasonal and decadal stable isotope evolution recorded by recent tufa deposited on artificial substrates in the Monasterio de Piedra Natural Park (NE Spain) // Geogaceta, 54 (2013), 135-138

Podaci o odgovornosti

Osácar, M. Cinta ; Arenas ; Concha ; Vázquez-Urbez, Martha ; Sancho, Carlos ; Auqué, Luis ; Pardo, Gonzalo, Lojen, Sonja ; Cukrov, Neven

engleski

Seasonal and decadal stable isotope evolution recorded by recent tufa deposited on artificial substrates in the Monasterio de Piedra Natural Park (NE Spain)

Identification of six-month intervals in carbonate deposits formed on tablets installed in several fluvial subenvironments of the Monasterio de Piedra Natural Park, from 1999 to 2009, allowed six-monthly stable-isotope analysis of such records. Slight differences in δ13C and δ18O exist between stromatolites (fast-flowing water areas) and moss-bearing deposits (cascades). Sediment δ13C values did not show clear regular variations through time. A chiefly cyclic pattern of sediment δ18O values reflected the seasonal variations in temperature. The calculated water temperature values were consistent with measured air and water temperature values. The increasing tendency of air temperature is closely reflected by the estimated temperature tendencies. The isotopic results stress the validity of the seasonal variation pattern detected through thickness measures, and underscore the environmental significance of tufas, which accounts for the use of this type of analysis in climate interpretation from ancient tufa records.

Modern tufas ; experimental six-month deposits ; stable isotopes ; air and water temperature variations.

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Podaci o izdanju

54

2013.

135-138

objavljeno

0213-683X

2173-6545

Povezanost rada

Geologija