Taxonomy term

august 2009

The long legacy of Peru's "Mine of Death"

The Inca knew there was something sinister about the cinnabar they hauled out of the ground at Huancavelica in Peru hundreds of years ago. They called the mine the Mine of Death. Now, a new study has exposed a 3,500-year history of mercury pollution from the cinnabar mines, a much longer legacy than researchers had previously realized.

05 Aug 2009

Where on Earth? - August 2009

Clues for August 2009:
1. This cave is formed from karst topography, which is characterized by caverns and sinkholes that form as groundwater or rainwater dissolve limestone or other carbonate rocks. The 5,180 square kilometers of karst landscape in this region is one of the best examples of karst in the world.