Folding is a ductile behavior in which flat layers of rock bend in response to stress. Faulting is a brittle behavior in which a rock develops one or more fractures in response to stress.
If the hinge of a fold, which refers to the point of sharpest curvature, points up, it is called an anticline. If the hinge of the fold points down, it is called a syncline. A recumbent fold is when the hinge of the fold points to the side. In regards to faulting, the deformation of the rock concentrates along the fractures. There are several types of faults: reverse, thrust, normal and strike-slip.Learn More
Rock salt is made of a 1:1 ratio of sodium to chlorine. Rock salt's chemical formula is NaCl, which means that one molecule of rock salt is composed of one atom of sodium (Na) and one atom of chlorine (Cl).Full Answer >
According to National Geographic, the main difference between rocks and stones, or gemstones, are their rarity and crystal formation. Most gemstones have a crystal formation, which makes them rare and valuable after they are cut. Rocks usually do not have a crystal formation, which means they are not considered to be of value. Unlike rocks, gemstones are classified on their rarity and value into two categories: semiprecious and precious.Full Answer >
The rock cycle is the sequence of stages that a rock goes through from creation to the point at which it breaks down and is reformed. The geological processes of sedimentation, weathering, erosion, heat, pressure, cooling and melting all create distinct stages in the rock's life cycle.Full Answer >
Obsidian is a type of igneous rock created when felsic magma cools and hardens before it can form a crystalline structure. It is characterized by its smooth texture and extremely sharp edges.Full Answer >