The Rock Cycle

Question 1

What starts the rock cycle?

Answer 1

Magma is the beginning of the rock cycle

Question 2

How are igneous rocks formed?

Answer 2

Cooling of Magma

Question 3

Processes associated with the rock cycle?

Answer 3

Magma cools and forms Igneous rocks. The Igneous rocks uplift to the surface and weather and erode causing sediments. Sediments are buried and lithification occur. With pressure and heating they become metamorphic.

Question 4

What are the two types of Igneous rocks?

Answer 4

Mafic and Felsic

Question 5

Chemical compositions of Mafic Igneous rocks?

Answer 5

High in iron, dark in colour, slow flow, fairly dense, related to oceanic crust

Question 6

Chemical composition of Felsic rocks?

Answer 6

High in silica, pale in colour, high flow, related to continental crust

Question 7

Define the properties and formation of Basalt

Answer 7

Mafic- fine grained

Question 8

Define the properties and formation of Gabbro

Answer 8

Mafic- coarse grained

Question 9

Define the properties and formation of Rhyolite

Answer 9

Felsic- fine grained

Question 10

Define the properties and formation of Granite

Answer 10

Felsic- coarse grained