powerpoint of rocks
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Geology PresentationTRANSCRIPT
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Field/Lab assignment part 1
BY: Jaime Padilla
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ROCKS
• Rocks are a link to the formation of the Earth. Without rocks in this world we would just be plain
• Rocks have been in Earth longer than humans have and will continue being around.
• Certain type of rock weathers away which is the way of life, but somewhere else in the world it forms into rock again.
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Metamorphic Rock
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Metamorphic Rock
• I took this picture along the shore of Monterrey Bay.
• Metamorphic rocks are the most amazing rocks to me because of the way they change in form.
• As you can see in the picture of the rock, you can see it compressed. This is because of heat, pressure and other chemically active fluids.
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Marble and Granite
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Metamorphic Texture
• Strolling along the downtown of L.A I came upon a store which had many tiles for flooring made of marble and granite.
• These beautiful rocks are used to decorate inside houses and also floors. They are very expensive and they are also a symbol of wealth.
• They come in various colors such as white, red, blue, black, etc.
• When you touch these tiles its really smooth because they are covered in a gloss coat to give it shine. On the contrary, the original granite rock feels rough and at times sharp depending where u got the rock from.
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Sedimentary Rock
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Sedimentary Rock
• This picture was tooken at Utah Nevada. My father and I where on the road since he is a truck driver he travels to a lot of places.
• Utah is rich of amazing structures of sedimetary rocks. Everywhere you look you can see this huge mountains of these type of rocks.
• Sedimentary rocks are primarily made up of dirt. Weathering also has a big roll from forming these magnificent rocks.
• You may also find ripples printed on rocks near the ocean shore, sedimentary rock is a perfect way of finding fossils printed into the rock.
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Igneouse Rock
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Igneous Rock
• This picture was also taken place at Monterrey Bay. It was exciting seeing this because knowing igneous rock is close by then there must be and underground volcano.
• Igneous rocks begins as a as hot, fluid material from a Volcano. There are 2 different types of igneous rock.
• 1st Extrusive rocks cool quickly over periods of seconds to months and have invisible or very small grains.
• 2nd Intrusive rocks cool more slowly over thousands of years and have small to medium sized grains.
• 3rd Plutonic rocks cool over millions of years, deep underground, and can have grains as large as pebbles.
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Field/Lab Assignment Part ll
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Faults
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Faults
• This picture was taken by Coalinga.
• This Fault is known as a Gouge fault because the two layers are separated by a gray layer that looks very ground up.
• consists of broken up and smashed pieces of rock which forms as the two sides of the fault moving against one another.
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Weathering processmechanical/physical
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Weathering Process-Mechanical
• Mechanical weathering takes place when rocks are broken down without any change in the chemical nature of the rocks.
• Exfoliation is the process where the rocks break in sheets along the joints that they have parallel to the earth surface.
• The forces that break rocks down can be numerous, and include such things as pent up energy as the Earth’s crust slowly moves.
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Weathering Process-Physical
Physical weathering is the class of processes that causes the disintegration of rocks without chemical change.
• The best example I have seen for physical weathering is sedimentary rocks because you can the dirt brush of the rocks.
• This process takes thousands of years, but it’s a process that has been within the Earth longer than humans.
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Mass Wasting
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Mass wasting
• This picture was taken in Cambria beach way out in the shore.
• Mass Wasting occurs when the downslope movement of rock and soil pulls down because of gravity.
• As you can also see erosion is also taken place.
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sedimentary environments continental, marine, and transitional
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Sedimentary Environments
• Continental is dominated by erosion and deposition associated with streams, glacial, and wind.
• Marine is shallow, deep of continental layers
• Transitional is off the shoreline and consist of tidal flats, lagoons, and deltas.
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iphone 3G geological field tool
• This electronic device is considered as a geological field because it contains GPS.
• It incorporates accelerometers which can be used to measure the tilt of the device.
• Test over geological structures, the relative speed and accuracy of a conventional compass clinometers and the iphone compass hybrid are demonstrated and campared.
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iphone 3G geological field tool
• iphone’s compass is as accurate as the Brunton compass.
• It has different amount of apps so you can use them for different situations
• For example: The ihandy Carpenter app in the premium version serves well as a level and plumb line, making it work for measuring dip angles.