Rocks Flashcards
1
Q
Sedimentary rock
A
- formed when layers of sediments are compacted together to form a solid rock
-e.g limestone and chalk - less resistant to erosion as layers can break off easily
- found in lowland areas
2
Q
Metamorphic rock
A
- formed when other rocks are changed by heat and pressure
-e.g slate - very resistant
-found in upland areas
3
Q
Igneous rock
A
- formed when molten rock from the mantle cools down and hardens
-e.g granite - resistant rock
-found in upland areas
4
Q
rock structure
A
the way different rock strata (layers of rock) are arranged