Shortcut Navigation:
Deformed Conglomerate (Hemlo Greenstone)

Deformed conglomerates

Deformed conglomerates

  • Exhibition Text

    • These rocks were originally deposited in a stream as layers of rounded pebbles. They became mixed with sands and silts as the original layers were eroded and re-deposited. Much later, the rocks were transformed by high temperatures and pressures deep in the crust. The rough surface of the sample on the left was caused by weathering and erosion.

      AMNH collection

      Show more

American Museum of Natural History

Central Park West at 79th Street
New York, NY 10024-5192
Phone: 212-769-5100

Open daily from 10 am-5:45 pm
except on Thanksgiving and Christmas
Maps and Directions

Enlighten Your Inbox

Stay informed about Museum news and research, events, and more!