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What is the igneous rock that is dense and dark colored and forms from magma that is rich in iron and magnesium but poor in silica That has 8 letters?
The igneous rock you are referring to is basalt. It is a fine-grained, dense, and dark-colored rock that forms from low-silica magma rich in iron and magnesium.
Is it true that magma that is low in silica usually forms light colored rocks?
Magma doesn't produce lava. Magma is lava. Magma is called magma when it is under the ground but when it is released via a volcano it is called lava when it is above ground. The magma or lava can produce dark to light color rocks after it cools depending on the composition of the magma or lava. There is also a range in the color of the lava depending on it composition and temperature also.
Why some types of magma form igneous rocks that are dark colored an dense?
Dark-colored and dense igneous rocks, such as basalt, typically form from magma that is rich in iron and magnesium but low in silica, known as mafic magma. This composition leads to the crystallization of minerals like pyroxene and olivine, which are darker and denser than those found in lighter-colored, silica-rich (felsic) magmas. Additionally, mafic magma tends to cool quickly at the surface, resulting in fine-grained textures that contribute to the rock's overall density and color.
Does dark colored rock with low silica content describe granite?
Granite is a silicate because it contains 70-77% silica (SiO2). Granite is a rock, and silica is mineral containing the chemical elements silicon (Si) and oxygen (O). Si and O chemically combine to form SiO2. Rocks are made up of minerals, which are made up of chemical elements. Because silicon and oxygen are the two most common chemical elements in the Earth's crust, silicate rocks are very common.
What type of magma produces pahoehoe?
Magma that is low in silica flows readily and produces dark-colored lava. Therefore magma that is low in silica produces Pahoehoe lava. This is called mafic or basaltic magma.
What is the difference in silica content and viscosity between light color and dark colored magma?
The lower the viscosity is the hotter the magma is and faster it flows.Higher the viscosity is the cooler it is and slower it flows down.
What is the difference in silica content and viscosity between light-colored and dark-colored magma?
The lower the viscosity is the hotter the magma is and faster it flows.Higher the viscosity is the cooler it is and slower it flows down.
What is the igneous rock that is dense and dark colored and forms from magma that is rich in iron and magnesium but poor in silica That has 8 letters?
The igneous rock you are referring to is basalt. It is a fine-grained, dense, and dark-colored rock that forms from low-silica magma rich in iron and magnesium.
What is a dark colored low silica rock?
Basalt is a dark-colored, low-silica igneous rock commonly found as a result of volcanic activity. Its composition typically contains around 50% silica, making it relatively low in silica compared to other igneous rocks like granite.
Dense heavy dark-colored igneous rocks form from what magma?
Dense heavy dark-colored igneous rocks form from mafic magma, which is rich in iron and magnesium and has a relatively low silica content. This type of magma tends to crystallize into minerals like pyroxene, olivine, and amphibole, resulting in rocks like basalt or gabbro.
What is a dark-colored low silica rock?
Mafic igneous rocks, like basalt, are dark colored and low in silica.
What is magma that has a low silica content called?
Magma with low silica content is called mafic magma. It is characterized by its high temperature, low viscosity, and dark-colored minerals like olivine and pyroxene. Mafic magma typically erupts from shield volcanoes and is associated with basaltic rocks.
Is it true that magma that is low in silica usually forms light colored rocks?
Magma doesn't produce lava. Magma is lava. Magma is called magma when it is under the ground but when it is released via a volcano it is called lava when it is above ground. The magma or lava can produce dark to light color rocks after it cools depending on the composition of the magma or lava. There is also a range in the color of the lava depending on it composition and temperature also.
What is a dark colored rock?
Mafic igneous rocks, like basalt, are dark colored and low in silica.
Igneous rocks that are dense and dark colored they form from magma that is rich in iron and magnesium and poor in silica?
These types of igneous rocks are commonly known as mafic rocks. They have a high density due to the presence of minerals like olivine, pyroxene, and amphibole, which are rich in iron and magnesium. Examples include basalt and gabbro.
What is a dark colored rock with a relatively low silica content?
If it is also an igneous rock, it would be described as a mafic rock, like basalt. There are many other rocks, not necessarily igneous, that would also fit this description.
Does dark colored rock with low silica content describe granite?
Granite is a silicate because it contains 70-77% silica (SiO2). Granite is a rock, and silica is mineral containing the chemical elements silicon (Si) and oxygen (O). Si and O chemically combine to form SiO2. Rocks are made up of minerals, which are made up of chemical elements. Because silicon and oxygen are the two most common chemical elements in the Earth's crust, silicate rocks are very common.
