Roof Pendant Geology Definition

In geology the term xenolith is.

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. In lay terminology sometimes rock hat is used. Roof pendant downward extension of the surrounding rock that protrudes into the upper surface of an igneous intrusive body. Roof pendants can be.

Rocks in the major roof pendants of the eastern sierra nevada have been mapped in various degrees of detail to bet ter understand their stratigraphy internal structure and geologic history and. 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 are the remains of the paleozoic and early mesozoic rocks that once covered the magma chambers of the sierra nevada 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. What is the definition of roof pendant. 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. Cretaceous granite intruding cambrian metasedimentary rock sierra nevada range.

The roof pendants occur as isolated pieces of the surrounding rock within the intrusive mass. How do you use roof pendant in a sentence. A broad definition could include rock fragments which have become encased in sedimentary rock. They are exposed by erosion of the overlying rock.

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 are synonyms for roof pendant. Xenoliths in granodiorite.