GTM version 0.91 features a redesigned Intrusion process. Using a dike as an example for intrusion turned out to be insufficient for some cases to be resolved. We now use a chain of volcanoes that erupt over a dike instead of just a dike and call it Volcano (V)"

This new volcano has the following rules:
The dike part always cuts across an earlier fault:
Volcanoes can extrude through
sediments that were eroded

Volcanoes can extrude through sediments:
When these extruded volcanoes are eroded, they are
completely removed and only a eroded dike is left:

 Volcanoes can be buried by  sediments:

Eroding this sediment will not erode
theses buried volcanoes: