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Are the rock formations in the grand canyon older at the top or bottom of the canyon?
MzDykstra08
The rock formations at the bottom are older.
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∙ 15y ago
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Is the grand canyon older than the US?
Yes.
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.
What does the Grand Canyon look like?
What is unique about the geologic record at Grand Canyon is the variety of rocks present, the clarity with which they are exposed, and the complex geologic story they tell.Two separate geologic stories exist at Grand Canyon. The older story is the one revealed in the thick sequence of rocks exposed in the walls of the canyon. These rocks provide a remarkable record of the Paleozoic Era (550 - 250 million years ago). Scattered remnants of Precambrian rocks as old as 2,000 million years can also be found at the bottom of the canyon. The story these rocks tell is far older than the canyon itself. Mesozoic and Cenozoic rocks (250 million years old to the present) are largely missing at Grand Canyon. They have either been worn away or were never deposited.The second geologic story at Grand Canyon concerns the origin of the canyon itself: when and how did it come to be? On one level the answer is simple: Grand Canyon is an erosional feature that owes its existence to the Colorado River. Of equal importance are the forces of erosion that have shaped and continue to shape the canyon today. These include running water from rain, snowmelt, and tributary streams which enter the canyon throughout its length. The climate at Grand Canyon is classified as semi-arid. The South Rim receives 15 inches / 38 cm of precipitation each year. The bottom of the canyon receives 8 inches / 20 cm. The rain comes suddenly in violent storms, particularly in the late summer of each year. The power of erosion is therefore more evident here than in other places which receive more rain.Grand Canyon owes its distinctive shape to the different rock layers in the canyon walls. Each responds to erosion in a different way: some form slopes, some form cliffs, some erode more quickly than others. The vivid colors of many of these layers are due mainly to small amounts of various minerals. Most contain iron, which imparts subtle shades of red, yellow, and green to the canyon walls. Climate plays an important role in the appearance of the canyon. If there was a higher amount of precipitation at Grand Canyon, the plants and trees that grow here would be very different. The canyon walls might be covered with lush vegetation, rather than the cacti and shrubs growing there today.How old is the canyon itself? The early history and evolution of the Colorado River (of which Grand Canyon is only a part) is the most complex aspect of Grand Canyon geology. We know that the erosion which has shaped the canyon has occurred only in the past five to six million years. This is only yesterday, considering the age of the rocks through which the river has carved.Grand Canyon continues to grow and change. As long as rain and snow continue to fall in northern Arizona, the forces of erosion will continue to shape Grand Canyon.from:http://www.grand.canyon.national-park.com/geology.htmYou can find also amazing photos at the link below:
How old is the history of the Grand Canyon?
thats an enigma...since the deeper the river gouges into the terrain the older it becomes...in reality the younger its archeological findings will be in respect to the age of the Earth...! Humn!?!
Which is older cactus hill or nottoway canyon?
Cactus hill
Why are the fossils at the bottom older than the ones at the top of the soil?
I don't now you
Is the layer of rock at the bottom of a sedimentatry rock younger or older?
Older.
Is the Grande Canyon 10000 years old?
Yes it is but in fact it is much much older by at least four million years.
Why is the sedimentary rock layer at the bottom of a canyon older then a sedimentary rock layer at the top of a canyon?
As a rule, the oldest rocks of layered rock strata are always at the bottom, the youngest at the top. The rock at the bottom was the first to form. Layers of weathered and eroded particles (sediments) or igneous material in the form of lava, add additional weight over time, which causes the mass to sink and compress, forming new rock layers. When running water erodes a canyon, the geologic history of the land is revealed in the rock layers.
Why do you read the time scale starting at the bottom?
We read the Geologic timescale from the bottom to the top because, that is the same way geologists and paleontologists had found the older fossils. The older fossils lay at the bottom, and the more younger ones, near the top.
What is a radioisotope used to date rock formations older than 50000 years?
Carbon-14 is used predominantly but I believe that iridium is used past 400000 years.
Is the fault older or younger than the layers?
older because it is at the bottom and the ones on top are younger than the bottoms
