Sedimentary & Metamorphic
1. Distinguish between the three types of sedimentary rocks.
2. Discuss different features of sedimentary rocks.
3. Explain the processes involved in the formation of sedimentary rocks.
4. Differentiate between the different forms of metamorphic rocks.
cementation stratification fossil parent rock metamorphism deform
Notes: (6-3 & 6-4)
Sedimentary rocks are perhaps the most common rocks found on Earth's surface. They are made from the weathering and cementation of inorganic and organic sediments. The formation can be further broken down into three classes.
Metamorphism is the process by which a rock's structure is changed by heat and pressure. The original rock is considered the parent rock and the rock it becomes is the metamorphic rock. There are two distinct types of metamorphism.
Causes of metamorphic rock
Temp. and press. is high enough to bond the minerals but not enough to
Grains are flattened into parallel bands
Gneiss & slate
o Sandstone becomes quartzite
o Limestone becomes marble
Last modified: October 03, 2003