Unit 2 Flashcards
Precambrian era, igneous and metamorphic rocks, formed by erosion from ancient mountains, flat rolling Hills swamps and lakes/rivers, lack of farming
Canadian Shield
Paleozoic era, sedimentary rocks, forms by erosion and glaciation, Flat plains, glacial plains, valleys; human activity: urban cities, farming
Great Lakes-St. Lawrence Lowlands
Paleozoic era, sedimentary rocks, seas washed sediments from the Canadian Shield and Rockies, slopes Rolling hills river valleys, mining potash coal and farming grain
Interior plains
Message zoic era, sedimentary rock, North American and Pacific plates colliding glaciation, high mountains rugged appearance valleys, human activity is farming in mining towns
Western Cordilleria
What is this- Mesozoic era, igneous metamorphic and sedimentary rocks, North American plate move northward, jagged peaks, almost no activity hard to reach
Intuition Mountains
Top soil
Surface layer or soil
Humus
Dark, upper later of soil made up of partially decayed plant material
Igneous rock
Rocks that formed when magma or lava cools. All rocks originate igneous rock
Rain shadow
Area on the Leeward side of the mountain, receiving little precipitation
Sedimentary
Rocks forms when igneous rocks have undergone erosion by wind, water and ice
Metamorphic
Igneous or sedimentary rocks that are subjected to heat, pressure and certain fluids
Leeward
Side of a mountain (range) facing away from the prevailing winds
Windward
The size of a mountain range that faces the prevailing wind
Continental
Climate type that develops away from the influence of the ocean
Maritime
Climate type that is strongly influenced by the closeness of an ocean or large body of water
: (88%) 4600-570 million years ago; first era and lasted 4.6 billion years
Precambrian
: (7%) 570-245 million years ago; lasted 345 million years; first plant and animal life
Paleozoic
(4%) lasted 180 million years; marked the break up of Pangaea; formation of Rockies , first birds and mammals; extinction of dinosaurs
Mesozoic
(1%) began 66 million years ago; gave Canada it’s shape; experienced last ice age 6000 years ago
Cenozoic ear
Discovers the Continental drift theory; one super continent called Pangaea
Wegener