TY - CPAPER TI - Deep refraction experiment in the central portion of the Tocantins province, state of Goias, central Brazil. [em CD-ROM] PY - 2000 AU - Soares, J. E. P. AU - Berrocal Gomez, Jesus Antonio AU - Fernandes, CĂ©lia Maria AU - Antunes, J. A. T2 - International Geological Congress J2 - Abstracts Volume PP - Rio de Janeiro PB - CPRM ER -