Archaeologists found bracelets and other objects manufactured from copper in a burial ground near prince Rupert harbour. Copper buried in rain forest soil tends to quickly deteriorate due to acidic solutions in the soil. What saved these copper artifacts from the damaging effects of acidic solutions
The acidic solutions in the rain forest soil were likely neutralized by the presence of organic materials such as plant matter or wood in the burial ground. These organic materials can help create a more neutral environment around the copper artifacts, preventing or slowing down the process of deterioration. Additionally, the burial method used, such as placing the artifacts in a protective covering or container, could have also helped to shield them from the damaging effects of the acidic solutions in the soil.
