Figure 3. This simplified
geological map shows the
Seridó Mobile Belt in the
northern segment of the
Borborema Province,
northeastern Brazil. The
emerald deposit is located
in the basement gneiss,
close to the Bonfim goldtungsten
mine, which is
hosted by metasedimentary
rocks. Modified after
Angelim et al. (2006) and
Souza Neto et al. (2008).