Stage of "house"

Question 1

Precambrion ice age

Answer 1

• Spans 80% of existence of earth
• Record is poor
• 2700-2300ma ice age
• 950ma ice age
• 700-650ma, with global ice deposists
• 600 ma, UK glacial deposits

Question 2

Snowball Earth

Answer 2

• Earth’s oceans and landsurfaces covered by ice from poles to equator at 2.4 billion and 580ma
• Earth could have came out by volcanic eruptions
• Life survived in hot springs

Question 3

Ordvican Ice age

Answer 3

• 440ma
• Large mass of continents (called Gondwanland) crossed the S pole. The continents were S america, Africa, antartica, Austrilia and India
• No UK deposits

Question 4

Permocarboniferous Iceage

Answer 4

• 290ma
• Large continental mass over S pole.
• Glacial evidence in Antartica, Africa, S america, India and Austrialia
• Tropical evidence in UK

Question 5

Cenozoic Ice age

Answer 5

• 30ma to present
• Extensive high latitude glaciation

Question 6

Last interglaical

Answer 6

• Occured in Ipswichan
• Peak warmth at 124 ka
• Tropical fossils like Hippos found in Uk