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Geography 101, Week 10 of Notes

by: Jensine Bonner

Geography 101, Week 10 of Notes Geog 101

Marketplace > Towson University > Geography > Geog 101 > Geography 101 Week 10 of Notes
Jensine Bonner
GPA 3.6

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About this Document

These notes cover what was discussed in Professor Schupple's Geography 101 class at Towson University.
Physical Geography
Henry L. Shupple
Class Notes
geography, notes, towson, towson university, 101
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This 3 page Class Notes was uploaded by Jensine Bonner on Monday April 18, 2016. The Class Notes belongs to Geog 101 at Towson University taught by Henry L. Shupple in Summer 2015. Since its upload, it has received 40 views. For similar materials see Physical Geography in Geography at Towson University.

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Date Created: 04/18/16
Geography 101: Notes taken, interpreted, and formatted by: Jensine Bonner Week 10 of Notes: ^Week 9 was primarily review 4/11/16 Geologio Time The Earth is 4.6 billion years old Most geologic processes occur very slowly There is a geologic time scale which is as follows: Eons-> Era -> Period -> Epoch -> million year(s) Precambrian represents 4 billion of the .6 (600) years There are (3) subsets within the Mesozoic Era including: Jurassic (Dinosaurs), 2 billion years Dinosaurs became extinct fairly quickly Mammals became introduced closer to the period of time when the dinosaurs were becoming extinct. They would feast on dinosaur eggs 4/13/16 Structure of the Earth As the Earth spins, the more magnetic its poles become The Magnetic Poles are different than the Geographic Poles (North & South Pole) The mag. Poles are constantly moving, and around them are auroras The poles help to deflect the polar energy Mars There was once abundant water, maybe even an ocean at one point in time It lost its magnetosphere, and it began cooling faster, and eventually solar wind drove the particles of the ocean away Earth At any point in time Earth could lose its magnetosphere Mantle The mantle is made of a type of rock which behaves like a plastic in that it bonds and shifts shape easily Crust 2 ½ -> 40 miles thick Thinnest underneath oceans (Oceanic crust) Thicker underneath continents (continental crust) Density becomes greater as it goes (depth) deeper Hotter at the core, and it increases in heat the deeper it goes (2) Sources of heat 1. Radioactive decay 2. Residual heat of the Earth’s rotation (or formation) Types of Rock Overall, rocks are made up of minerals, and those minerals are comprised of elements (3) Types of Rock 1. Igneous These are formed by the cooling of molten (liquid) rock The rate at which it cools is what determines its texture, and will develop with a lot of crystals Ex. Granite, basalt, pumice 2. Sedimentary These are formed of sediment Particles of rock, shells, and various vegetative material Ex. Limestone (sea- bed sediment) 3. Metamorphic Changes shape easily Develops from igneous or sedimentary rocks, after undergoing additional pressure, so many rocks have metamorphic counterparts Ex. Granite-> Gneiss, Limestone-> Marble, Granite-> Schist 4/15/16 (Rocks cont.) Whenever the term “fossil fuel” is used, it’s usually to refer to: Coal, oil, natural gas Coal Mining When coal is formed by plant materials, it is called lithify. Often, can find all 3 together in coal. There are different types of mining Drift mine, slope mine, shaft mine, and also strip mining (this is only done when the coal is fairly close to the surface Oil Often times taken from a drill placed down in the ocean, and ships often participate in transporting the oil ^Keystone Pipeline There are plans to build a pipeline that will transfer oil from Alberta, Canada through Texas End of Week 10 notes. I hope that they were helpful to you. Notes will be uploaded weekly, so be sure to come back again! - Jensine


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