This text addresses one of the greatest environmental tragedies in Brazilian history, the rupture of the Samarco dam in Mariana / MG, from the point of view of environmental dislocations, with conceptual and technical elements to address the problem. It seeks to analyze the controversial concepts of terms used to describe people affected by environmental disasters, the lack of adequate terminology for environmental displaced persons, and to analyze which are the instruments that guarantee the

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... sic rights of this displaced population. For this, under the hermeneutic-dialectic epistemological approach, the case study method is used with the field research technique performed with people affected by the rupture of the dam, with a line with a script with open questions.