CONDITION OF FORMATION OF DWARFISH CU-AU-PORPHYRY DEPOSITS

11th International Multidisciplinary Scientific GeoConference SGEM2011, www.sgem.org, SGEM2011 Conference Proceedings/ ISSN 1314-2704, June 20-25, 2011, Vol. 1, 35-42 pp

ABSTRACT

Regularities in the distribution and formation mechanism of giant Cu-Au-porphyry
deposits have been discussed by many authors. Most recent works are dedicated to the
problem of their formation. The deposits of Macedonia discussed in this
communication usually contain up to 150 000 t of copper with the Buchim deposits
likely being the smallest in the world among similar recently mined deposits. The longterm
economically profitable development of the latter refutes the traditional opinion
that only Cu-Au-porphyry deposits with reserves at least of 2 500 000 t and Cu content
exceeding 0.5% are profitable for exploitation. Therefore, complex study of dwarfish
deposits of Fr. Macedonia is as important as research into giant deposits of the Pacific
ore belt for solving the problem of their formation mechanism and answering the
question of how they differ compared to giant deposits.

Keywords: dwarfish, Cu-Au-porphyry, deposits, metallogeny, belt, remobilization