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What do you know about a rock layer found on a mountain if you find a seashell fossil?
Wiki User
∙ 13y ago
If you find a seashell fossil in a rock layer on a mountain, than you know that the rock layer was formed at a time when that area was submerged under water. This is because the seashell lived and died underwater, so it would have been fossilized there as the rock layer formed. Millions of years later, the water drained away, and forces within the Earth's crust pushed the rock layer and the layers above it upward, forming mountains. Of course, the rock layer would have been buried deep within the Earth by that point, but as the mountains formed, weathering and erosion would have worn away the newer layers, exposing the ancient rock layer with the seashell.
Wiki User
∙ 10y ago
Wiki User
∙ 13y agoIf the fossil was "in situ" inside the rock, it would indicate that it was once below sea level and has been uplifted by the process of plate tectonics.
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How can a fossil of an aquatic animal be found in a layer of rock through a mountain about sea level?
it probably died, and the sand and rock built up over the fossil while it was decaying.
What layer is an old fossil found?
fossils are formed in Sedimentary rock
A fossil found under a layer of rock is usually?
older than the rock!
What principle is a geologist applying when deciding that a fossil in a mud layer is older than a fossil in a sandstone layer above it?
Which principle is a geologist applying when deciding that a fossil in a mud layer is older than a fossil in a sandstone layer above it.
What could you conclude if a dinosaur fossil and a bird fossil were found in the same layer of rocks?
We would conclude that the bird and the dinosaur lived around the same time.
What do you know about a rock layer found on a mountain if you find a seashell fossil in the layers?
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How can a fossil of an aquatic animal be found in a layer of rock through a mountain about sea level?
it probably died, and the sand and rock built up over the fossil while it was decaying.
What is a fossil found under a layer of rock is usually?
It is usually older than the rock layer it is found under.
What is A fossil found under a layer of rock is usually .?
It is usually older than the rock layer it is found under.
What layer is an old fossil found?
fossils are formed in Sedimentary rock
A fossil found under a layer of rock is usually?
older than the rock!
What principle is a geologist applying when deciding that a fossil in a mud layer is older than a fossil in a sandstone layer above it?
Which principle is a geologist applying when deciding that a fossil in a mud layer is older than a fossil in a sandstone layer above it.
What could you conclude if a dinosaur fossil and a bird fossil were found in the same layer of rocks?
We would conclude that the bird and the dinosaur lived around the same time.
What type of dating would be used to determine the age of rocks by using the fossil?
By using the geologic time scale. Certain organisms are only found during certain times and if a fossil of one of these organisms is found then you can determine the relative age of the fossil.
How are sedimentary layers used to date fossils?
Stratigraphic layers can be used to determine the age of a fossil in a simple manner. The layers towards the top of an outcrop are younger (Law of Superposition and Law of Original Horizontality) and the layers near the bottom are older. If a fossil is found in a lower layer then that fossil is older than any fossils found in the higher up layers.
Which fossil might be found in the red sandstone layer if the layer was deposited during the Triassic period?
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Is a fossil older or younger than a another fossil in a lower rock?
According to the geologic Law of Superposition, in undisturbed rock strata, the deepest rock layers are always the oldest. Accordingly, a fossil found in a lower layer of undisturbed rock would be the older.
