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    STUDIA GEOLOGIA - Issue no. 3 / 2003  
         
  Article:   THE RELATIONSHIPS BETWEEN BRECCIA STRUCTURES AND ORE VEINS. A CASE STUDY FROM THE CETATE HILL, ROŞIA MONTANĂ ORE DEPOSIT (ROMANIA).

Authors:  CĂLIN TĂMAŞ, LUCREŢIA GHERGARI, CORINA IONESCU, BÉATRICE CAUUET. 		 
       
         
  Abstract:  The Roşia Montană epithermal ore deposit (Fig. 1) is well known due to its gold content and the Cetate phreatomagmatic breccia pipe structure (Tămaş, 2002). This breccia body that occurs in the Cetate Hill is not the single breccia structure within this massif, other breccia structures were identified additionally at the surface and in the underground. The genesis of the Cetate phreatomagmatic breccia pipe was followed by subsequent phreatic processes, finally resulting in several phreatic breccias and veins, superimposed on the previous maar-diatreme couples (Tămaş, 2002). Two ancient mining fields were discovered in the Cetate Hill - Zeus and Găuri - and subsequently used for archaeological-mining investigations (Cauuet et al., 2003). Within these ancient mining networks (Fig. 1) two new breccia structure occurrences were discovered allowing to point out various aspects regarding the relation between breccias and the veins. ...  
         
     
         
         
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