Presentation is loading. Please wait.

Presentation is loading. Please wait.

What is Geology? Geology is the study of the Earth's physical composition. But, isn't that Geography? No! Geography, once again is the study of people.

Similar presentations


Presentation on theme: "What is Geology? Geology is the study of the Earth's physical composition. But, isn't that Geography? No! Geography, once again is the study of people."— Presentation transcript:

1 What is Geology? Geology is the study of the Earth's physical composition. But, isn't that Geography? No! Geography, once again is the study of people and their place. Geology is closely related, as it looks specifically at the place where we all live: Earth

2 Earth’s Interior HYDROSPHERE ATMOSPHERE Crust - 8-64 km thick
Air ATMOSPHERE Water Crust km thick - cold & fragile - Granite and Basalt Land LITHOSPHERE Mantle km thick - hot & molten - Magnesium and Silicon Outer Core km thick °C - liquid Nickel and Iron Inner Core km thick °C - solid Nickel and Iron

3 It's a lot like an egg Crust: Outer layer
Mantle: The molten magma, aka white part of the egg The Core: The centre of the Earth is like the yolk…except really hot.

4 Rock Cycle MAGMA Heats and melts Cools and hardens IGNEOUS METAMORPHIC
Weathers, erodes, and deposits Stresses or heats SEDIMENTARY

5 Geologic History – Step 1
Precambrian Era 550 million – 4.5 billion years ago Volcanism Fault Ancient Sea Igneous Rock

6 Geologic History – Step 2
Paleozoic Era  250 million to 550 million years ago Erosion Erosion Sediments Sediments Igneous Rock

7 Geologic History – Step 3
Mesozoic Era  65.5 million to 250 million years ago Yikes! Dinosaurs! Erosion Sediments Sediments Igneous Rock Mountains Forming

8 Geologic History – Step 4
Cenozoic Era  Present era to 65.5 million years ago Sedimentary Mountains Eroding Mountains Forming Sedimentary Plains APPALACHIAN MOUNTAINS PACIFIC OCEAN ROCKY MOUNTAINS Igneous Rock ATLANTIC OCEAN INTERIOR PLAINS CANADIAN SHIELD


Download ppt "What is Geology? Geology is the study of the Earth's physical composition. But, isn't that Geography? No! Geography, once again is the study of people."

Similar presentations


Ads by Google