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THE GRAND CANYON
Transcript of THE GRAND CANYON
By: Aedan Rourke and Liam Nash
The Grand Canyon
Earth's Crust: The thin solid outside layer of the Earth; or the surface that we walk on everyday.
- The Grand Canyon was formed approximately 80 million years ago
- The reason was because the North American plate collided with the Pacific plate
- The Colorado River which is the canyon that flows through the Canyon played a huge role in the Grand Canyon's formation
-The combination of the already rising plateau and the Colorado River created a deep grove so the river couldn't escape
- It took the Colorado River 3-6 million years to carve the massive Grand Canyon along with its many sidestreams and tributaries
- During the Formation, a long time ago, the grand Canyon actually became a inland sea,
- When it dried up it left fossil behind which became
shale and other rocks
The Grand Canyon is 277 miles long and 18 miles wide because of the Colorado River
- The Grand Canyon
-The Colorado river had a big role in the making of the canyon.
-In the spand of three to six million years the river was eroded and slowy making a canyon over time
-Now the canyon is 1800 m deep and the river is about 100m deep.
- Its width ranges from 4 to 18 miles wide in some parts.
As we all know the Grand Canyon is big and that is
one of the very many reasons why The Grand Canyon is where it is today and why it is so famous.
- The Grand Canyon is one of the most studied
national parks in the histiory of the world mainly because of its rocks that are in it.
- The Grand Canyon has over 40 major layers of sedimentary rock and their "beds" or layers with some rocks aging from 200 million to 2 billion years old
- The sediment in the Canyon has been building up for more than 1 biliion years. The sediment is made from sand, silt, mud, and clay.
It also contains many igneous rocks, "granite", metamorphic rocks, "gneiss", minerals, and crystals.
Initially, the Grand Canyon's colour is red
bit its colours can be brown, red, violet, and even green or purple
- Why is the Grand Canyon red?
RELATION TO THE EARTH'S CRUST:
-The Grand Canyon is a giant crack in the earth which in over the mostly flat Colorado Plateau
- As mentioned previously, it contains
Rock: a solid material made from naturally occuring
The Grand Canyon is
red because of the rock that is on the edge from where the sea rushed up on which is shale that is made up from sandstones and mudstones
- The mudstones where bright red-orange making the colour that the Grand Canyon has mainly been for the past 80 million years
- The Grand Canyon is also known as the Red
solid materials called MINERALS
First of all, the Grand
- The Grand Canyon was formed by tectonic plates colliding;"puzzle pieces" found under the Earth's Crust
Canyon is located in
the state of Arizona in the United States on the
- It is not only a canyon but it is home to many wildlife species and native tribes
- Lastly, it also became a national park in 1967
- It receives approximately 5 million tourists a year
There is so much erosion and depositition of the sediments and soils which is of the many reasons why it contains so many rocks in it.
is famous for how much
it has eroded
- Erosion as you all know, is when sediment and other materials are weared away by water or something else that has to the ability to move material, wind, etc.
-Why is this one of the reasons that the Canyon is so big? Its because of the the Colorado River and during the uplift of the plateau, it caused erosion and a lot of it.
- Now the Grand Canyon contains a whole lot of sedimentary rock and sediment which is another way why the Grand Canyon is so important to geologists all over the world
a flat elevated landform that reaches above surrounding area
Geology: the science that deals with the earths phisical structure and substance.
- images: www.googleimages.ca
- sciencepower7( our science book)
We give thanks to:
- Mr Arseneau
- The Rourke and Nash household
A ROURKE AND NASH PRODUCTION
WELCOME TO THE GRAND CANYON
ONE OF THE SEVEN NATURAL WONDERS OF
OF THE WORLD FOR THESE REASONS
WELCOME TO THE GRAND CANYON
LET US SHOW YOU WHY THE GRAND CANYON IS CONSIDERED ONE OF THE SEVEN NATURAL
WONDERS OF THE WORLD
which include sedimentary rock, metamorphic
rock and igneous rock
Today we are going to take to you about
historical, and social features
Definitions of Key Terms
Relation to the Earth's Crust
Interesting facts and more
, these features include:
SCIENTISTS USE THE GRAND CANYON TO STUDY ABOUT THE EARTH'S FEATURES
The Grand Canyon is also known as the Red
SOME OF THE GRAND CANYON'S ROCKS CAN BE EVEN PINK
Some of the Grand canyon's rocks are up to 2 billion years old
THE GRAND CANYON RECEIVES 5 MILLION TOURISTS PER YEAR