Haughton Impact Crater: Stop 10

Here we see more evidence for hydrothermal activity at Haughton. There’s no selenite here, but instead we see green iron sulfide minerals (orange rust color when weathered) and calcite lining a cavity within the impact melt breccias.

Hydrothermal Sulfide Deposits in the Breccia Hills Photo: G. Osinski, University of Western Ontario Location: Along the Haughton River valley that eventually exits the structure to the north Scale: Length of the rock hammer is approximately 30 centimeters