Roof Pendant Geology Definition

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.

Roof pendant geology definition.

The roof pendants sit in the batholith like plums in a pudding and add a little mystery and pizzazz to the geology of the sierra. In lay terminology sometimes rock hat is used. What are synonyms for roof pendant. They are exposed by erosion of the overlying rock.

Xenoliths in granodiorite. The presence of roof pendants indicates that the igneous body is being observed near its upper surface. Roof pendants can be. The current geological model for the santana project area has identified that gold mineralization is related to a series of hydrothermal breccias approximately 300 500m in diameter or greater hosted by the copula of batholithic intrusions porphyritic stocks and by roof pendants of their volcanic host rocks.

A broad definition could include rock fragments which have become encased in sedimentary rock. The roof pendants occur as isolated pieces of the surrounding rock within the intrusive mass. Roof pendant downward extension of the surrounding rock that protrudes into the upper surface of an igneous intrusive body. In geology the term xenolith is.

The intrusions that most commonly contain roof pendants are relatively shallow stocks or batholiths. The large scale inclusion of foreign rock strata at the margins of an igneous intrusion is called a roof pendant examples. What is the definition of roof pendant. How do you use roof pendant in a sentence.

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. These older rocks that are intruded by the granite are called roof pendants because they show the roof of the batholith. In roof pendant metamorphosed through the processes of contact metamorphism during which heat and fluids from the intrusion have reconstituted the enclosed rock. What is the meaning of roof pendant.