GEOG 2OC3 Lecture Notes - Lecture 3: Muskeg, Paleozoic, Arctic Circle
Document Summary
An area with distinct surface landforms (geomorphology) and underlying bedrock structure (geology) The study of landforms and the processes of their genesis. Most of the canadian shield is made of igneous granite. Intrusive: hardens deep in the ground (changes the appearance of the rock) Igneous rock is distinguished by 2 things: chemical composition, cooling characteristics, liquid basalt, obsidian, granite. Altered chemical and physically by pressure or heat. Formed deep beneath surface: ex, gneiss, quartzite, schist. Made from sediments (particles) of other exsisting rocks. Move along the earth, eroded into small particles (then they cement back together) Biogenic: limestone, made of calcium carbonate and bones. Starter rock: igneous rock its then broken down into metamorphic or sedimentary. Metamorphosed into other metamorphic rock rock layer build compressed, compacted. Product of 3 forces that created the continent. Made of ranges of mountains (rockies), plateaus and valleys that are alliged on the n-s along the western coast.
