TY JOUR TI Tunantza breccia-pipe hosted gold deposit (Cordillera del Condor, southeastern Ecuador) and issues of classification of similar deposits KW breccia-pipe KW classification KW gold KW epithermal KW Cordillera del Condor JO Vestnik of geosciences AU Medina, J.P. AU Ignatov, P.A. PY 2025 IS 0 PB FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"