Using `ANTPOT.222 Rn´ as a tracer of geodynamical processes in underground environments - Lacerda, T; Anjos, R M; Valladares, D L; Rizzotto, M; Velasco, H; Tognellie, G; Ayub, J Juri; Silva, A A R da; Yoshimura, Elisabeth Mateus (Reunião de Trabalho sobre Física Nuclear no Brasil, 2013)