Rob Thomas
@rokdok.bsky.social
Regents Professor of Geology, University of Montana Western, Dillon, Montana
Yellowstone National Park, truly making America great…
January 3, 2025 at 7:11 PM
Yellowstone National Park, truly making America great…
Ringing Rocks, Montana is a boulder field with stones that ring like a bell. A combination of a very hard, fine-grained gabbro and the stacking pattern of the boulders with no matrix appears to cause the sound. A rock removed from the pile will not ring!
December 4, 2024 at 5:21 AM
Ringing Rocks, Montana is a boulder field with stones that ring like a bell. A combination of a very hard, fine-grained gabbro and the stacking pattern of the boulders with no matrix appears to cause the sound. A rock removed from the pile will not ring!