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Igneous rocks can contain radioactive minerals, but they are not inherently radioactive themselves. The level of radioactivity in an igneous rock depends on its mineral composition, particularly the presence of uranium, thorium, or potassium isotopes. Some igneous rocks, like granite, may have higher levels of natural radioactivity due to these minerals, while others may have little to no radioactivity. Overall, the degree of radioactivity varies widely among different igneous rock types.
What else can I help you with?
What are igneous rocks that form over the surface?
Rhyolititcen rocks.
Igneous rocks are formed when magma does what?
The Igneous rock formed when magma cools are; 1. Extrusive (Volcanic) Igneous Rock; which are igneous rocks formed when magma cools outside the earths crust. The texture of of extrusive igneous rock is fine grained. 2. Intrusive (Plutonic) Igneous Rock; these are igneous rocks formed by gradual cooling of magma within the earths crust. The texture is coarse grained.
What do you call rocks that have been formed from the hot molten material within the earth's crust that has cooled and hardened?
Igneous rocks are formed by the solidification of molten materials.
Are igneous rocks made up of igneous rocks?
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
Are sedimentary rocks are harder than igneous rocks?
No, igneous rocks are harder than sedimentary rocks on average.
Could radioactive dating only be used for igneous rocks?
Radioactive dating is only useful in dating igneous and metamorphic rock. Organic material that has not fossilized and does not exceed 70,000 years of age can be dated by Carbon dating techniques. Sedimentary rock can only be dated by its association with igneous and metamorphic rock.
What type of rock does radioactive dating work best with?
Radioactive dating works best with igneous rocks, particularly those formed from the cooling of molten lava or magma. This is because the mineral crystals in igneous rocks lock in the radioactive isotopes when they form, providing a reliable record of the time that has passed since the rock solidified. Sedimentary rocks are generally less reliable for radioactive dating due to their mixture of different rock fragments.
When molten rocks cools what rocks form?
igneous rocks
What are igneous rocks that form over the surface?
Rhyolititcen rocks.
What do you call rocks that have been formed from the hot molten material within the earth's crust that has cooled and hardened?
Igneous rocks are formed by the solidification of molten materials.
Igneous rocks are formed when magma does what?
The Igneous rock formed when magma cools are; 1. Extrusive (Volcanic) Igneous Rock; which are igneous rocks formed when magma cools outside the earths crust. The texture of of extrusive igneous rock is fine grained. 2. Intrusive (Plutonic) Igneous Rock; these are igneous rocks formed by gradual cooling of magma within the earths crust. The texture is coarse grained.
Are igneous rocks made up of igneous rocks?
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
Why are igneous are called primary rocks?
Igneous rocks
Are volcanic rocks igneous rocks?
Yes. Volcanic rocks are extrusive igneous rocks.
Are sedimentary rocks are harder than igneous rocks?
No, igneous rocks are harder than sedimentary rocks on average.
How do fine- grained igneous rocks from?
extrusive igneous rocks =/
What kind of igneous rocks for on earths surface?
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
