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What two ways are rocks classified into?
Rocks are classified into two main groups based on how they are formed: igneous rocks, which are formed from cooling and solidifying magma or lava, and sedimentary rocks, which are formed from the accumulation and compression of sediments.
What are the three main types of magma and what factor determines these classifications?
The three main types of magma are basaltic magma, andesitic magma, and rhyolitic magma. They are classified according to their mineral composition. Basaltic magma is composed of SiO2 45-55 wt%, high in Fe, Mg, Ca, low in K, Na. Andesitic magma is composed of SiO2 55-65 wt%, intermediate. in Fe, Mg, Ca, Na, K. Rhyolitic magma is composed of SiO2 65-75%, low in Fe, Mg, Ca, high in K, Na.
How are rocks that form from magma and lava different?
They are different because lava is when it hits earth's atmosphere; magma turns to lava. Magma is when its inside the volcano. They are different because of the color: darker/blacker and magma rocks are way hotter. Lava rocks are colder and fragile.
What group of rocks does granite belong to?
Granite is classified as an intrusive igneous rock.
What list places the magma What list places the magma types in order of decreasing?
basaltic,andesitic,rhyolitic
Magma can be classified according to its content.?
silica
Molten rock under ground?
Magma or lava. Classified as mafic or felsic, depending on it's minerology.
How are magma and igneous rock compositions categorized?
They are classified by the amount of silica vs the amount of alkalies are in the rocks or magma.
What type of magma is closer to intrusive rocks?
magma can be classified into two,magma of granitic composition(originates from lower continental crust) and magma of basaltic composition (which originates from upper mantle).Both can form intrusive rocks.
What rocks are classified as igneous?
They are rocks formed from magma that cools and crystallizes on the earth surface.
How devils tower formed?
A loooooooong time ago it was classified as a Stratovolcano. When it erupted, the magma cooled and hardened in the volcano. Eventually, the outer part eroded away, causing the cooled magma to be exposed. After that, it was then classified as an extinct volcano, and to this day it is a popular tourist attraction.
Rocks that originated from the liquid phase are classified as?
Igneous rocks are classified as rocks that originated from the liquid phase, specifically from the cooling and solidification of magma or lava.
Is granite formed from lava cooling or magma cooling?
Not from the magma, no. Cooled and solidified magma is classified as igneous. However, metamorphic rocks can be formed as the heat and hot fluids of intruding magma affect the properties and possibly the chemistry of the existing "country rock" into which it comes in contact. This process is called contact metamorphism.
Is the mt paricutin volcanoes magma mafic intermediate or felsic?
Like most cinder cones Paricutin was fed by mafic magma.
What are magmas classified under?
Magmas are classified based on their silica content, which determines their viscosity and behavior. They can be classified as basaltic, andesitic, or rhyolitic, with variations in composition such as intermediate or silicic. Temperature, pressure, and volatile content also play a role in magma classification.
Which type of rock does magma form when it hardens?
Magma forms igneous rock when it cools and hardens. Igneous rocks can be further classified as intrusive (formed below the surface) or extrusive (formed on the surface).
An eruption is classified as an explosive volcanic eruption based on the amount of which mineral found in the magma?
An eruption is classified as explosive primarily based on the amount of silica (SiO2) found in the magma. Higher silica content increases the viscosity of the magma, preventing gas from escaping easily, which leads to the buildup of pressure and ultimately results in explosive eruptions. Conversely, magma with lower silica content tends to be less viscous and allows gases to escape more readily, resulting in less explosive activity.
