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Q: Why are the oldest fossils sometimes not on the bottom layers of rocks?
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When there are fossils in rock layers which are considered the oldest?

the ones closest to the bottom


How are fossils related to science?

because it has to do with layers of sedimentary rock; piles of rock get stacked upon fossils which means the bottom layer with the fossils is oldest since it was there 1st


In the Grand Canyons the oldest fossils are found where?

Fossils of armored fish, corals, shellfish, and snails have been found in the Grand Canyon.


Where are the oldest layers of sediments located?

The oldest layers of undisturbed sediment are at the bottom.


Dating technique involving compraring fossils in rock layers?

Relative dating-comparing fossils related to how old other fossils are in the same sample of rock. If the rock has been undisturbed, the oldest rock will be at the bottom, therefore, the oldest fossils will also be at the bottom. the youngest rock will be at the top, therefore, the youngest fossils will be at the top. Absolute Dating-When you can figure out through testing the exact age of the fossil


Where would the oldest fossils be found in the rock layers?

The furthest down of all top layers.


Where can you find the oldest fossils in sedimentary rock layers?

It would be found in the lower layers, rather that younger fossils which are found in the upper layers. ♥


In the grand canyon the oldest fossils are found?

in the lowest layers of rock


What is the Arrangement of rock layers based on their ages?

A geologic column is an arrangement of rock layers in which the oldest rocks are at the bottom. The upper part of the column is rich in fossils.


Where are the oldest organisms located in the rock layer?

In the geological column , scientists have learned that rocks are stacked in layers. The oldest fossils are located in the deepest layers, a vertical timeline.


How are rock layers arranging the geologic column?

The oldest rocks (layers) are at the bottom. The youngestrocks (layers) are at the top


Where are the oldest rock layers in a syncline?

on th ebottom