Boiler rupture

In tectonics, a boiler breach is a subsidence field created by faults (fractures).

In contrast to the depression of a trench , a boiler fracture is more or less circular.

Examples of such landforms are

• the Arnsdorf granite stock near Vierkirchen (Oberlausitz)
• the Kesselbruchweiher in the urban area of Frankfurt am Main
• the Balmholz quarry

The Nördlinger Ries was regarded as a boiler breach for a long time before it was discovered that it was an impact crater .