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How can you tell the gabbro crystallized deeper underground than basalt did?
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How can you tell that gabbro crystalized deeper underground than basalt did?
Gabbro has larger crystals, meaning it had much more time to solidify from magma underground. Larger crystals in igneous rock are an indication of longer cooling times, which result in larger crystal growth.
What is 1 example of an igneous rock?
Any rock that erupted on (lava) or within the Earth or crystallized from molten rock (magma). Such rock would fall into two categories: Intrusive (crystallized within the Earth), granite, gabbro, diorite, pegmatite, peridotite and extrusive (erupted and crystallized on the surface) rhyolite, andesite, obsidian, basalt, tuff and pumice.
Examples of igneous rock?
Granite basalt pumice aplite scoria
What is the rock that makes up most of oceanic crust?
Most of the oceanic crust is made of peridotite. Some basalt and gabbro may also be found.
Where do granite and gabbro crystallize?
Deep underground.
What is the difference between gabbro and basalt?
Gabbro is an intrusive rock, which means it formed underground. Basalt is an extrusive rock, which means it formed above ground .
How can you tell that gabbro crystalized deeper underground than basalt did?
Gabbro has larger crystals, meaning it had much more time to solidify from magma underground. Larger crystals in igneous rock are an indication of longer cooling times, which result in larger crystal growth.
In what way is gabbro different from basalt?
Gabbro and basalt are both igneous rocks. However, gabbro is an intrusive rock, and basalt is an extrusive rock.
Where is basalt and gabbro formed?
Basalt and gabbro are chemically equivalent rocks. Basalt solidifies above ground and gabbro solidifies below ground.
How does a basalt differ from gabbro?
Gabbro has much larger grains that basalt does. This is because basalt cools faster than gabbro and has less time to form crystals.
What is the relationship between basalt gabbro and obsidian?
Basalt and obsidian are extrusive igneous rocks. Gabbro is an intrusive igneous rock.
What is 1 example of an igneous rock?
Any rock that erupted on (lava) or within the Earth or crystallized from molten rock (magma). Such rock would fall into two categories: Intrusive (crystallized within the Earth), granite, gabbro, diorite, pegmatite, peridotite and extrusive (erupted and crystallized on the surface) rhyolite, andesite, obsidian, basalt, tuff and pumice.
Can two igneous rocks be made of the same minerals but have different names?
Yes. The grain texture also matters. For example, basalt and gabbro have the same mineral composition, but basalt, which forms on the surface, has microscopic grains while gabbro, which forms underground, has larger mineral grains.
Which minerals are found in basalt and gabbro?
olivine and pyroxene
Why would basalt and gabbro generally have higher chemical weathering rates than rhyolite and granite?
The ferromagnesian minerals in the gabbro and basalt are subject to oxidation and chemical breakdown.
How is basalt different from gabbro?
Basalt is an Extrusive Igneous Rock, it is a fine grained textured rock, While Gabbro is an Intrusive Igneous Rock and it has a Coarse grain texture.
Which igneous rock has the same chemical composition as basalt but a different grain size?
a hot dogs mother in laws mother to the horse in the backyard
