SESSION 6 - Characterising lithic sources
The marine chert from Las Lezas (Biel, Zaragoza) and its prehistoric exploitation

This work present the results of the petrographic study of the local chert (Las Lezas), as well as the different strategies concerning its gathering, transport and exploitation in every prehistoric cultural phase, in connection to other exogenous cherts: the sites register a recurrent use of the described local flint, accompanied by other varieties (i. e. Monegros-type) whose presence increases over time.