Roof Pendants Are

Definition of roof pendant.

Roof pendants are.

Roof pendant downward extension of the surrounding rock that protrudes into the upper surface of an igneous intrusive body. 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. Cretaceous granite intruding cambrian metasedimentary rock sierra nevada range. Defined by paul c.

These older rocks that are intruded by the granite are called roof pendants because they show the roof of the batholith. In structural geology a roof pendant which also known as a pendant is a mass of country rock that projects downward into and is entirely surrounded by an igneous intrusion such as a batholith or other pluton. Skip navigation chegg home. The roof pendants occur as isolated pieces of the surrounding rock within the intrusive mass.

In lay terminology sometimes rock hat is used. Want to thank tfd for its existence. Also known as pendant. The removal of roof rocks by erosion may leave remnants of roof pendants which resemble xenoliths in the intruding rock.

Roof pendant a downward projection of country rock into a batholith. Answer to question 16 1 pts roof pendants are characteristic of metamorphism which occurs at metamorphic grade. Rüf pen dənt geology downward projection or sag into an igneous intrusion of the country rock of the roof. A downward projection or sag of the roof of a batholith.

In roof pendant metamorphosed through the processes of contact metamorphism during which heat and fluids from the intrusion have reconstituted the enclosed rock. The presence of roof pendants indicates that the igneous body is being observed near its upper surface. A dictionary of earth sciences. They are exposed by erosion of the overlying rock.

Bateman a roof pendant is a mass of metamorphic rock that is entirely surrounded by plutonic rock and presumed to be a downward projection of rocks that overlaid the plutonic rocks before erosion in this report an overview of the roof pendants within the sierra nevada range is given. The photo below shows the cretaceous granite below light colored rock and the dark colored sedimentary now metamorphic rock above. 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.