Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were orig

---

Gneiss is a common and widely distributed type of rock formed by high-grade regional metamorphic processes from pre-existing formations that were originally either sedimentary or igneous rocks. They are often foliated with lighter and darker bands that may be folded or faulted.

---

Size: 5925px × 3260px
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, bands, common, faulted, folded, gneiss, high-grade, igneous, metamorphism, rock, sediment, sedimentary