Geology 102 Notes from past 6 classes
Geology 102 Notes from past 6 classes Geo 102
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This 2 page Class Notes was uploaded by Taylor sandeno on Monday October 26, 2015. The Class Notes belongs to Geo 102 at Illinois State University taught by Bill Shields in Fall 2015. Since its upload, it has received 19 views. For similar materials see Principles of Geology in Geology at Illinois State University.
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Date Created: 10/26/15
1014 Shear found at a transform fault boundary and moves in opposite directions Adding stress causes deformation Earthquakes are explained by stresses below the elastic limit point Five structures 1 Anticlines folds in the shape of a capital A The limbs of the fold dip into the earth away from the center The oldest rock is in the center Converging Series of folds not just one Occurs because of compressive series Not always parallel to the ground 2 Syncline similar to anticline but upside down The fold is downward The limbs go into the ground towards the center The youngest rock is in the center Older rocks are on the sides Series of folds not just one Occur because of compressive series Not always parallel to ground Anticines and synclines occur above the elastic limit point 3 Monocline One dipping limb It is at on both sides They are caused by basement block faulting Sometimes blocks of granite sink down when there are breaks in the rock Peru Monocline Caused by basementblock faulting Renamed spilt rock monocline It s in Illinois Dome Oldest rock in the center Circlular Causes magma lt fractures the rock at the surface and exposes older rock All the layers dip away from the center into the ground Black Hills a dome oldest rock is in the center Basins Youngest rock in the center Circular The limbs dip into the ground It sinks down deeper and sediments wash into it and keep causing it to go deeper Strike and dip symbols shows that it goes towards the outside dome Cause by intrusions Strike and dip symbol pointing towards the middle Limbs are dipping 1016 Anticlines and synclines compression Basins the sinking of the ground due to crustal thinning Monoclines Basement block faulting Domes Intrusions has closure looks kind of like a circle Normal faults tension Reverse faults compression Strike and dip compressions If the strike and dip symbol points away from the center then it is an anUcHne If A is up top on the left and b is on the bottom right but the tops are even then b ends up being the footwall A is the hanging wall because it hangs on top of the other wall since it is towards the top Strike and dips point towards the youngest rock Hanging wall moves up compression reverse fault Strike slip shear right lateral stand on one side looking at the other side and see which way the opposite one moves When two blocks are sliding past each other Anticlines synclines basins domes monoclines ductile deformation Earthquakes associated with the san andres faults are elastic deformation know this using the chart for the test What makes earth unique water is in liquid solid and gas Illinois gets 90100 percent of their water from surface waterrivers lakes and stuff on top of the land In Illinois we take between 1019 billion gallons of water out of the surface everyday 972 percent of all water is in the oceans You can t drink ocean water but you can make the water drinkable by taking out the salt A lot of our water is also in the glaciers It is 21 percent of our water Less than 1 percent is ground water Oceans and glaciers is 99 percent of our water we drink Why is the water cycle important essential for life transportation drinking water irrigation industrial processing Most of it is used for irrigation Laminar ow particles ow in a straightline path parallel to the stream channel deposits material Turbulent Flow water moves in erratic fashions characterized by swirling whirlpoollike eddies erodes material Controlled by velocity of ow and roughness of the channel bottom Discharge the amount volume of water passing a certain point in a given amount of time The more discharge the more pollutants can be in the water