Furthermore , these formations have been continuously under the effect of Karst and are exploited as marble .
Geologically , it is made up of carbonic limestone , dating back to the Mesozoic period , while in the northwestern it is composed of terrigenous sediment .
These formations have been continuously under the effect of Karst and are exploited as marble .
Geologically , it is made up of carbonic limestone , dating back to the Mesozoic period , while in the northwestern it is composed of terrigenous sediment .