Pumari o A. ,Rodr guez J.A.,Tatjer J.C. and Vigil E. Chaotic dynamics for 2-D tent maps (754K, AMS-LaTeX) ABSTRACT. For a 2D-extension of the classical one-dimensional family of tent maps, we prove the existence of an open set of parameters for which the respective transformation presents a strange attractor with two positive Lyapounov exponents. Moreover, periodic orbits are dense on this attractor and the attractor supports a unique ergodic invariant probability measure.