Glaciation Flashcards
(9 cards)
What is glaciation?
Glaciation refers to periods of ice advance.
When did the last ice age end?
The last ice age ended 10,000 years ago.
What are interglacial periods?
Interglacial periods are times between glaciations.
Could temperatures during the ice age be higher than today?
Yes, temperatures during the ice age could be higher than today.
What happened in Europe 18,000 years ago?
Ice sheets spread down from the north as the climate cooled.
What effects did glaciers have on valleys?
Glaciers filled and eroded valleys.
What are the causes of ice ages?
Causes of ice ages include variations in the sun’s energy, changes in Earth’s orbit, and volcanic ash blocking the sun.
What are ice sheets?
Ice sheets are large sheets of thick ice found in Greenland and Antarctica.
What is a glacier?
A glacier is a mass of moving ice that can flow in a valley like a river.
