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If a layer of sandstone lies on top of a layer of limestone in which a 300-million-year-old fossil is found and there are no unconformities the layer of sandstone must be what?
The layer of sandstone must be younger than the layer of limestone, which contains the 300-million-year-old fossil. Since there are no unconformities, the sandstone was deposited after the limestone, meaning it formed after the fossilizing event of the limestone layer. Therefore, the sandstone is younger than 300 million years old.
If a layer of sandstone lies on top of a layer of limestone in which a 300-million-year-old fossil is found and there are no unconformities the layer of sandstone must be .?
The layer of sandstone must be younger than the layer of limestone. Since the limestone contains a 300-million-year-old fossil, it indicates that the limestone is older than 300 million years. Therefore, the sandstone, which lies on top without any unconformities, must have formed after the limestone was deposited.
what was the oldest fox fossil found?
btw the oldest fox fossil found was over 7 million years old from the V.riffautae
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 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?
The geologist is applying the principle of superposition, which states that in an undisturbed sequence of rock layers, the oldest rocks are at the bottom and the youngest are at the top. This helps geologists determine the relative ages of fossils found in different layers of sedimentary rock.
How do you tell how old a fossil is by the rock layer?
You can determine the relative age of a fossil by looking at the position of the fossil in the rock layers. The closer a fossil is to the surface, the younger it is relative to fossils found deeper in the layers. To determine the absolute age of a fossil, scientists use radiometric dating techniques on the surrounding rocks to determine the age of the rock layer the fossil is found in.
If a layer of sandstone lies on top of a layer of limestone in which a 300-million-year-old fossil is found and there are no unconformities the layer of sandstone must be what?
The layer of sandstone must be younger than the layer of limestone, which contains the 300-million-year-old fossil. Since there are no unconformities, the sandstone was deposited after the limestone, meaning it formed after the fossilizing event of the limestone layer. Therefore, the sandstone is younger than 300 million years old.
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.
How can scientists understand what the relevant age of a fossil is?
There are layers of earth that are deposited over time and based on where a fossil is in the layers a scientist can understand what the age of the fossil is relevant to another fossil in a different layer of earth. The law of superposition says that new sediment is deposited on top of old sediment so, the sediment in the bottom layer is the oldest and the sediment at the top is the youngest. Because of this the fossils in the bottom layer are the oldest and the fossils near the top are the youngest. Say you have 10 layers of rock, and the top layer is number 1 (the youngest) and the bottom layer is number 10 (the oldest). Even if a scientist can't tell exactly how old a fossil is if they know it is in a layer deeper than another fossil they know it is older than that fossil so, a fossil from layer 9 is older than a fossil from layer 5 which is also older than a fossil from layer 3. This is relative age. If we take it a step further... If a scientist knows that the fossil in layer 4 is 65 million years old than we not only know the fossils in layer 5-10 are older than the one in layer 4, but that they are all older than 65 million years old. So, the fossils in layer 1-3 would be less than 65 million years old. Scientists can know how old a specific fossil is sometimes based on whether or not it is an index fossil (a fossil that only occurred during a very small, specific interval of time), or if it is possible to carbon date it or something in the same layer.
How old is the fossil?
The oldest fossil found on earth is 3.5 billion years old
If a layer of sandstone lies on top of a layer of limestone in which a 300-million-year-old fossil is found and there are no unconformities the layer of sandstone must be .?
The layer of sandstone must be younger than the layer of limestone. Since the limestone contains a 300-million-year-old fossil, it indicates that the limestone is older than 300 million years. Therefore, the sandstone, which lies on top without any unconformities, must have formed after the limestone was deposited.
How do you identify a index fossil?
By using relative age. Over a long period of time, sediment will, layer by layer, coat and cover the fossil, making it difficult for paleontologists and scientists to figure out how old the fossil really is.
How old was the oldest Human fossil found?
350,000 years old!
What do you know about a rock layer found on a mountain if you find a seashell fossil in the layers?
i love you <33
what was the oldest fox fossil found?
btw the oldest fox fossil found was over 7 million years old from the V.riffautae
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.
