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                     Grand Canyon Bus Tours
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How was the Grand Canyon Formed? The History in the making!
As stated by Teddy Roosevelt –The Grand Canyon is one of the most magnificent 
sights, which every American at least once in their lifetime, grab the opportunity to 
see. Well, not only is the appearance of the Grand Canyon fascinating. The history of 
its origin gives the Grand Canyon an intriguing twist, which is regarded as one of the 
sites of world heritage and was discovered by humans 12,000 years ago. Today the 
Grand Canyon hosts more than 6 million visitors in a year. You can take the Grand 
Canyon Bus Tours to have a look at this mesmerizing creation of nature. 
Here we will take about the formation of the Grand Canyon. 
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The Foundations were laid 1 billion years ago
When two tectonic plates of the Earth collided 2 billion years ago, the story 
of the Grand Canyon started. Due to this collision, several volcanic islands 
were smashed and later merged. Under extreme pressure and heat, the 
volcanic eruptions were transformed into dark-colored rocks that form the 
basement of the Grand Canyon today. When you ride through the 
Grand Canyon Bus Tours, you will have a vivid idea about the origin of this 
astonishing natural phenomenon. 
Upper rock layers were formed 100 million years back
Due to the application of the geological forces, the 
supergroup layer of rocks was broken down into chunks 
and was tilted at different an angle. Further, these 
formations were scoured by erosion, and another sea was 
formed over the layers. Later the accumulation of new 
sediments began at the lowest layer of the sea, which is 
one of the most shocking aspects of the Grand Canyon. 
Over the next few million years, the sediments in the ocean 
started to pile up. 
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Different Layers forming the Grand Canyon
When you travel through the Grand Canyon Bus Tours, you 
will have a sound knowledge about the different types of 
rocks that have come together to form the Grand Canyon. 
According to the geologists, the upper two-third part of the 
Canyon is made up of –shales, limestones, and sandstones of 
different scintillating colors. These rocks were merged in 
between 508 million years and 270 million years back. The 
Grand Canyon is touted as one of the most splendid exposure 
of the rocks in a stratified layer, which exists in the world. 
Further, at the rim of the Canyon sits the Kaibab Limestone. 
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Contact US
Vegas Tours
1045 American Pacific Drive Suite 160
Henderson, Nevada 89074
Phone 1- 866-218-6877
https://vegastours.com/