12. Which type of rock is represented by the map symbol below?* A) clastic sedimentary rock formed from organic substances B) chemically formed sedimentary rock that consists mainly of the mineral calcite C) regional metamorphic rock with block like foliation D) contact metamorphic rock that results from the alteration of limestone by contact with an igneous intrusion
There are three main types of rocks: sedimentary, igneous, and metamorphic. Each of these rocks are formed by physical changes—such as melting, cooling, eroding, compacting, or deforming—that are part of the rock cycle.
