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Because sedimentery rock is formed under the sea, sediment collects at the bottom of the ocean, and so does a few dead sea creatures, then t gets squashed by other sediment, igneous rock is formed by lava cooling, so there is no fossils in it.

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Dahlia Miller

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3y ago

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Why do rock fossils form in sedimentary rock and not in igneous rock-?

Fossils are formed in sedimentary rock because the rock is formed at temperatures that do not destroy the fossils like the igneous rocks would.


Are fossils an important component of igneous rock?

No, fossils are typically found in sedimentary rocks, not igneous rocks. Sedimentary rocks form from the accumulation and compaction of sediments, which can preserve fossils, while igneous rocks form from the cooling and solidification of molten rock, where fossils are usually destroyed.


Why do rock fossils form in sedimentary rock and not in igneous rock?

because sedimentary rocks are on the top layer, while igneous rocks are were the magma is


Do igneous rocks usually contain fossils?

Igneous rocks are formed from cooling and solidifying of molten rock, so they usually do not contain fossils. This is because fossils are typically found in sedimentary rocks, which form from the accumulation of sediment and organic materials, preserving the remains of plants and animals.


Why do rock fossils form in sedimentary rock and not igneous rock?

Rock fossils form in sedimentary rocks because the process of fossilization usually involves the burial and preservation of organic material in layers of sediment. Igneous rocks form from molten magma, which would destroy any organic material present, making it unlikely for fossils to be preserved in them. Sedimentary rocks, on the other hand, accumulate over time and provide the conditions necessary for the preservation of fossils.


What might sedimentary rock contain that igneous rocks would not?

FOSSILS.


Which which mars rock contains fossils sedimentary igneous or metamorphic sedementary igneous or metamorphic.?

There is currently no confirmed evidence of fossils on Mars. Sedimentary rocks are usually associated with the formation and preservation of fossils on Earth, so if fossils were to be found on Mars, they would likely be in sedimentary rocks.


What kind of rock are fossils found in?

Igneous rocks.


Why are most fossils found in sedimentary rock such as shall and limestone rather than igneous and metamorphic rock?

Because Igneous Rocks was made from magma or lava and Sedimentary Rocks are made found underwater where a bunch of rubbish is lying around and they add them together and Metamorphic Rocks were either from Igneous or Sedimentary Rocks so they could also be filled with fossils.


How does igneous rock change to sedimentary?

Sedimentary rock melts, then it cools to form Igneous rock. Hoped this helped. :)


Why is it unlikely that fossils would be found in igneous rock?

Fossils are unlikely to be found in igneous rock because igneous rock forms through the cooling and solidification of molten rock, which destroys any fossils that may have been present. Most fossils are found in sedimentary rock layers where the remains of plants and animals can be preserved over time.


ARE Fossils always found in igneous rocks?

No, fossils are typically found in sedimentary rocks rather than igneous rocks. Sedimentary rocks form from the accumulation and lithification of sediments, making them more likely to preserve fossils due to their layered nature. Igneous rocks, on the other hand, form from the cooling and solidification of molten rock and are less likely to contain fossils.