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Compared to felsic igneous rocks mafic igneous rocks contain greater amounts of?
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Do rocks that cool slowly from magma contain more crystals?
No. They would contain fewer, but larger mineral crystals when compared to igneous rocks which have cooled quickly from lava or magma.
How do you classify igneous rocks from other types of rock?
Igneous rocks are identified by first looking at the color index. Felsic igneous rocks contain mostly potassium feldspar. Intermediate igneous rocks contain mostly plagioclase feldspar. Mafic igneous rocks contain pyroxene, olivine, and plagioclase feldspar. Ultra mafic igneous rocks contain mostly olivine. Then igneous rocks are identified based on texture. For example, the texture of igneous rocks can be aphanitic, pegmatitic, phaneritic, glassy, vesicular, etc.
Why are igneous rocks not contain fossils?
yes
Which rocks contain fossils sedimentary or igneous?
sedimentry
What does igneous contain?
Randomly arranged interlocking crystals and no fossils :)
Do rocks that cool slowly from magma contain more crystals?
No. They would contain fewer, but larger mineral crystals when compared to igneous rocks which have cooled quickly from lava or magma.
Which areas in the world contain the most igneous rock record?
Areas such as the mid-ocean ridges, volcanic arcs, and hotspots have extensive igneous rock records due to ongoing volcanic activity. Additionally, regions with ancient shield volcanoes, like the Canadian Shield and Fennoscandian Shield, also contain large amounts of igneous rocks from past volcanic activity.
Does an igneous rock contain iron?
Most igneous rocks would likely contain a varying amount of iron.
Where do we find intermediate rocks?
Intermediate rocks contain roughly equal amounts of dark- and light-colored minerals. Igneous rock containing 56-65 percent silica.
How do you classify igneous rocks from other types of rock?
Igneous rocks are identified by first looking at the color index. Felsic igneous rocks contain mostly potassium feldspar. Intermediate igneous rocks contain mostly plagioclase feldspar. Mafic igneous rocks contain pyroxene, olivine, and plagioclase feldspar. Ultra mafic igneous rocks contain mostly olivine. Then igneous rocks are identified based on texture. For example, the texture of igneous rocks can be aphanitic, pegmatitic, phaneritic, glassy, vesicular, etc.
Why are igneous rocks not contain fossils?
yes
Which rocks contain fossils sedimentary or igneous?
sedimentry
Does rhyolite igneous rock usualy contain diamonds?
No.
How are igneous and sedimentary alike?
Both are composed of minerals. Some sedimentary rocks contain pieces of igneous rocks.
Do extrusive igneous rocks contain crystals?
No. Pure volcanic glasses contain no crystalline structure.
Rocks which contain a variety of minerals are examples of a?
Igneous Rocks
What does igneous contain?
Randomly arranged interlocking crystals and no fossils :)
