Deformed conglomerates main content.

Deformed conglomerates

Part of Hall of Planet Earth.

Deformed Conglomerate (Hemlo Greenstone) AMNH/R.Mickens

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