The Earth's Crust

Question 1

Which two minerals found in mantle

Answer 1

Silicon and magnesium…. combined called olivine

Question 2

Example of plutonic or intrusive rock

Answer 2

Granite, diorite, gabbro

Question 3

Example of extrusive rock (volcanic rock)?
Major regions where of basaltic rock found?

Answer 3

Basalt,
Deccan plateau, Columbia snake plateau(usa), antrim plateau(northern ireland)

Question 4

What is one structural difference in particle arrangement of igneous and sedimentary rock

Answer 4

Igneous rock is crystalline while sedimentary is non crystalline

Question 5

Give example of mechanically formed sedimentary rocks with their sedimets

Answer 5

Sandstone
Conglomerate (rounded pebbles cemented together)
Breccia(angular pebble)
Clay, mudstone, shale(fine particles)
Grit (coarser material)

Question 6

What are two types of organically formed sedimentary rock? Give example also

Answer 6

Calcareous(limestone, chalk)
Carbonaceous(peat, coal, lignite)

Question 7

Give example of chemically formed sedimentary rock

Answer 7

Gypsum
Rock salt
Potash and nitrates

Question 8

Following rocks convert into which metamorphic rock
Clay
Limestone
Sandstone
Coal
Granite
Shale

Answer 8

Slate
Marble
Quartzite
Graphite
Gneiss
Schist

Question 9

Give example of block mountains where two side rock subsided.
Give example of block mountains where one mid rock subsided

Answer 9

Black forest mt of rhineland Germany
East african rift valley

Question 10

Ice scoured plains are found in which country

Answer 10

Finland