Every geologist has experienced extreme isolation at some point. That crystalline moment when they realized that if anything happened to them right then and there, they may as well be on Mars.
Middle Stone Age Ethiopians progressively replaced exotic iron-rich high-quality rocks with lower quality, poorer in iron, but locally available ones. Researchers now have clues as to why this happened.
The new project involves updating the western portion of the Nelson mapsheet through the compilation of existing geological data, augmented by field surveys and mapping.