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What is a hardened layer in a volcano?
As lava cools, it hardens and forms a thick layer of rock. These rocks are known as igneous rocks. An example of an igneous rock is pumice, which is used in spa treatments to soften feet.
How does determining the ages of igneous rocks help to date fossils?
Determining the ages of igneous rocks helps to establish the age of the rock layer in which fossils are found. By dating the igneous rocks above and below the fossil-containing layer, scientists can narrow down the possible age range of the fossils found within that layer. This helps to provide a more accurate estimate of the fossil's age.
Is Mercury igneous rock?
No, Mercury is not an igneous rock. It is actually a planet in our solar system, the closest planet to the Sun. It is a rocky planet like Earth, but its surface is heavily cratered and covered in a layer of regolith, not igneous rock.
Type of rock formed from molten rock?
Igneous rock is formed when magma cools and becomes solid.
What kind of rock is formed after a volcano erupts?
Extrusive igneous rock such as basalt, rhyolite, pumice, and obsidian.
How does the age of a rock layer compare with an igneous intrusion that is through it or an igneous rock extrusion above it?
If it is above it, the rock layer came after the intrusion. if the intrusion went through the rock layer is older because they layer had to be there in order for the intrusion to go through.
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
What is the hardened layer of lava called?
The hardened layer of lava is called "igneous rock".
What layer of the earth is composed of igneous metamorphic and sedimentary rock?
The crust.
How would igneous rock be on a layer of sedimentary rock?
The igneous rock could have been erupted as lava on the surface, or intruded into the sedimentary rock layers as magma underneath the surface (a sill).
What causes igneous rocks to become sedimentary rocks?
If other layers of rock, dirt, dust, and sand are put on top of the igneous rock and the layers are compressed by their own weight, they become a single, unified layer of sedimentary rock. Simple Version: 1. Igneous rock 2. More rocks are put on the igneous rock. 3. The rock on top push down and squeeze the all of the layers into one layer.
What is a hardened layer in a volcano?
As lava cools, it hardens and forms a thick layer of rock. These rocks are known as igneous rocks. An example of an igneous rock is pumice, which is used in spa treatments to soften feet.
What layer of the earth is thin chemically complex?
The thinnest layer of the earth is the outer layer, or the crust. It is made up of sedimentary, metamorphic and igneous rock.
How does determining the ages of igneous rocks help to date fossils?
Determining the ages of igneous rocks helps to establish the age of the rock layer in which fossils are found. By dating the igneous rocks above and below the fossil-containing layer, scientists can narrow down the possible age range of the fossils found within that layer. This helps to provide a more accurate estimate of the fossil's age.
Is Mercury igneous rock?
No, Mercury is not an igneous rock. It is actually a planet in our solar system, the closest planet to the Sun. It is a rocky planet like Earth, but its surface is heavily cratered and covered in a layer of regolith, not igneous rock.
What describes rock that was formed when molten rock cooled down?
Igneous rock is formed.
Is blood stone a rock?
Yes it is. Stone and igneous rock are the same because they are on the earths outer solid layer. The lithosphere is made of rock. The three major groups of rock are: igneous, metamorphic, and sedimentary. Stone and rock is naturally occurring solid aggregate of minerals and/ or mineraliod.
