UK Landscapes (Geology) : Sedimentary Rocks Flashcards
1
Q
how is sedimentary rock formed?
A
rocks are eroded and weathered making sediments
sediments are transported to seas and lakes where lithication occurs.
2
Q
how are sedimentary rocks characterised?
A
by visible layers of sediments and fossils being found
3
Q
what are examples of igneous rocks?
A
sandstone and chalk
4
Q
what are some properties of sandstone?
A
- permeable
- porous
- hard (upland) and soft (lowland)
5
Q
what are some properties of chalk?
A
- permeable
- small grains
- contains fossils
- soft