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Its from the water level. The water use to be as high as the lines but due to drought it caused the water to sink but they eroded(left the lines) into the walls before the water reached were it is now. Better answer.
The horizontal lines are layers of sedimentary rock laid down at different geological times. Vertical lines are from wind and water erosion.
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∙ 16y ago
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Why is it important to study the walls of the grand canyon?
to find how old they are and how many layers
How far apart are the walls of the Grand Canyon?
They vary from 4 to 18 miles.
Is it illegal to bungee jump off the Grand Canyon?
i am pretty shure it is from the skywalk in the middle of the canyon, definite yes, but there are small canyons that are part of the Grand Canyon system such as Marble Canyon where you can jump from the Navajo Bridge -- not part of the main canyon that most people think of as the Grand Canyon but it's about a 200 foot drop between narrow canyon walls and that may suffice.
How much time can be read in the walls of the Colorado River's Grand Canyon?
About 200 million years.
Would the contour lines of the grand canyon be spaced out or close together?
they would be extremely close where the canyon is but relevantly spaced out before
What is the name of Grand Canyon?
the grand canyon
Is grand canyon a canyon?
a Grand Canyon is nothing but a big erosion.........
If in the Grand Canyon walls if a fossil imprint of a leaf is lower than a shell fossil does that mean that the leaf fossil is older than the shell fossil?
The strata or rock layers of the grand canyon walls are undisturbed. As such, a layer of rock containing a fossil, that is below an overlying rock layer will be older.
Is the Grand Canyon made of igneous rock?
Yes, The Grand Canyon is made up of all three main types of rocks. Sedimentary, igneous, and metamorphic rock layer are found at the Grand Canyon. It is one of the best places to study geology.
What large canyon is in Arizona?
Copper Canyon (Spanish: Cañon del Cobre) is such landmark.
What Is a deep valley with a high steep sides?
It is a Canyon as in the Grand Canyon.
What is the largest canyon formed by the Colorado river?
Black canyon
