New data on the subsurface succession of Leghorn

A. Bossio, A. Ciampalini, A. C. Colonese, S. Da Prato, A. Rafanelli, G. Zanchetta

Sortida de recercaRecercarevisió per companys

5 Cites (Scopus)


The main results of an integrated study of 5 boreholes drilled (the maximum depth of twenty-five meters from the p.c.) in the subsurface of the Salviano surroundings are reported (Livorno). The analyses performed included lithological- sedimentological observations, macro and micropalaeontological investigations. Stratigraphic interpretation of the 5 investigated boreholes allowed to distinguish 5 main lithostratigrahic units; these are, from the base: - U nit 1: sandy silts and fine sands with continental ostracod associations characteristics of upper Messinian (Loxocorniculina djafarovi Zone).- U nit 2: fossiliferous sand and calcarenitic layer. Ostracod assemblage indicates litoral environment. This unit can be referred to Middle Pleistocene on the base of stratigraphical remarks. - U nit 3: silt and fossiliferous sands with carbonate glaebules. Land snails and fresh water faunas (mollusc and ostracods) are recorded in this unit. - U nit 4: silt, sand and gravel. This unit can be correlated with fluvial environment «Conglomerati di Rio Maggiore » formation outcropping in the neighborous (Upper Pleistocene). - U nit 5: red sandy silts and silty sands can be correlated with Sabbie di Ardenza Formation (Upper Pleistocene). The examinated succession allows to improve the subsurface knowledge of Livorno surroundings.
Idioma originalEnglish
Pàgines (de-a)13-24
RevistaAtti della Societa Toscana di Scienze Naturali, Memorie Serie A
Estat de la publicacióPublicada - 1 de gen. 2008

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