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How do geologists use fossils to determine rocks age what are this fossils called?
Geologists use fossils to determine the age of rocks through a process called biostratigraphy. They identify the specific group of fossils present in the rock layer, known as index fossils, that have a known age range. By comparing the index fossils to a geological time scale, geologists can estimate the age of the rock layer.
Why is it unlikely to find fossils in marble?
Marble is a metamorphic rock, and the process of metamorphosis destroys fossil shapes.
What aren't you likely to find a fossil I metamorphic rock or igneous rock?
The fossils will be crushed under the pressures required to create metamorphic rocks and they will melt in the heat required to make igneous rocks.
What happens to a fossil in a metamorphic rock?
Not normally. Metamorphism destroys the characteristics of the original rock, including bedding, cleavage, texture and fossils. In extremely low grade metamorphic rocks, however, fossils may still be present, however these fossils will be deformed.
Why do you seldom find fossils in metamorphic rocks?
As metamorphic rocks form under large pressure and temperature, the original composition of the rock is largely lost. Take for example marble, with it's protolith (original rock) being limestone. Limestone contains a lot of fossils, however, when it's put under pressure, the fossils collapse, the calcium inside dissolves in the water that is present in the rock, and settles at different places again. All this makes sure that you can't actually see the fossils in the marble. It's still the same material, but it's deformed too strong to see the fossils.
Can you find broken fossils in metamorpic rocks?
yes you can find broken fossils in metamorphic rics
How do geologists use fossils to determine rocks age what are this fossils called?
Geologists use fossils to determine the age of rocks through a process called biostratigraphy. They identify the specific group of fossils present in the rock layer, known as index fossils, that have a known age range. By comparing the index fossils to a geological time scale, geologists can estimate the age of the rock layer.
What kinds of rocks do you not find fossils in and why?
Igneous rocks and metamorphic rocks, because the intense heat and pressure destroys fossils.
If you were looking for fossils in the rocks around your home and the rock type that was closest to your home was metamorphic do you think that you would find many fossils explain?
If the rock type around your home is primarily metamorphic, you are unlikely to find many fossils. Metamorphic rocks form under high pressure and temperature, which typically destroys any fossils that might have been present in the original sedimentary rock. Fossils are more commonly found in sedimentary rocks, where the conditions are conducive to preserving organic remains. Therefore, the chances of finding fossils in metamorphic rocks are minimal.
In what type of rocks could you find fossils?
Fossils are principally found in sedimentary rocks and also in some metamorphic rocks of sedimentary origin.
Would you find fossils in metamorphic rock?
You can but it very very rare. you are more likely to find them in sedimentary rocks.
Why are you likely to find fossils in evaporite sedimentary rocks but not in detrital sedimentaryor metamorphic rocks?
Yes
Would you be less like to find fossils in metamorphic rocks than in sedimentary rocks?
Yes.
Would you be less likely to find fossils in metamorphic rock than in sedimentary rock?
Yes.
Why don't you usually find fossils in metamorphic rocks?
because of the heat and pressure that wrecks and deforms it.
How many fossils did they find in the Badlands?
i dont no
In what type of rocks would geologists most likely find evidence of past life forms?
Index Fossils
