If this downward protruding mass of roof rock still has a connection to the main surrounding mass of country rock they are known by structural geologists as either septa or screens.
Roof pendant definition.
Roof pendant downward extension of the surrounding rock that protrudes into the upper surface of an igneous intrusive body.
A roof pendant is an erosional remnant that was created by the removal by erosion of the overlying country rock that formed the roof of the igneous intrusion that encloses it.
A mass of country rock which projects downwards into an intrusive body such as a batholith or remains as an erosional fragment on its upper surface.
The roof pendants occur as isolated pieces of the surrounding rock within the intrusive mass.
Also known as pendant.
Downward projection or sag into an igneous intrusion of the country rock of the roof.