At the Companhia Siderúrgica Nacional Mineração (CSN) Casa de Pedra Mine at Congonhas in the Quadrilátero Ferrífero.
In the mine, Top left: mine geologist Rafael Rodrigues explains aspects of the ore deposit; Lower left: Claret Campos (left), CSN Manager, Development & Technology explains aspects of the operation in the pit; Upper middle and right: inspecting strongly foliated, high grade itabirite. Note the same foliation dip behind the shovel on the lower middle image. Photographs by Mike Porter.
| |||||||||
