PEDOGENIC CARBONATE δ13C AND ENVIRONMENTAL PRECIPITATION CONDITIONS

Catoni, Marcella; DIVAPRA – Chimica Agraria E Pedologia, Università Di Torino, Torino, H Curtis MONGER MONGER & Bonifacio, Eleonora; DIVAPRA – Chimica Agraria E Pedologia, Università Di Torino, Torino
Carbon isotopic analysis is a useful tool for investigating paleoenvironments, as the pedogenic carbonate δ13C is related to δ13CSOM and to the proportions of C3/C4 plants. In this work we interpreted the paleoenvironmental conditions at the time of carbonate precipitation in soils formed under different climates and during different geological ages. Samples were taken from a Bk (PR1, Holocene) and from two Bkm horizons (PR2 and PR3, Pleistocene). When the mean δ13C plant values and...