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Stop 10 at Haughton

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Hydrothermal sulfide deposits in the breccia hills (rock hammer for scale)
Hydrothermal sulfide deposits in the breccia hills
Photo: G. Osinski, University of Western Ontario
Along the Haughton River valley that eventually exits the structure to the north
Scale: Length of the rock hammer is approximately 30 centimeters

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.

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