Peridotite is a coarse-grained, dense igneous rock composed mainly of olivine and pyroxene minerals. It is typically green in color due to the high concentration of olivine. Peridotite is commonly found in the Earth's upper mantle and is important in the formation of oceanic lithosphere.
The igneous rock with mostly plagioclase feldspar and about 30 percent dark silicate minerals is likely a basalt. Basalt is a fine-grained extrusive rock that is commonly found in oceanic crust and volcanic islands. The dark silicate minerals in basalt are typically pyroxene and olivine.
Peridotite is a type of ultramafic rock that is primarily composed of the minerals olivine and pyroxene. It is typically found in the mantle of the Earth and is associated with igneous processes such as the formation of oceanic crust at mid-ocean ridges.
The igneous rock with mostly pyroxenes and olivine is likely a mafic rock, such as basalt or gabbro. These minerals are common in mafic rocks due to their high iron and magnesium content. Mafic rocks are associated with oceanic crust and volcanic activity.
The four main types of igneous rocks are basalt, granite, andesite, and rhyolite. Basalt is a fine-grained rock, while granite is coarse-grained. Andesite and rhyolite fall between basalt and granite in terms of grain size and composition.
an ultramafic composition
Felsic rocks mostly contain silicates such as feldspars and quartz, mafic rocks are ferrromagnesian, containing mostly pyroxene and olivine, ultramafic rocks only contain pyroxene and olivine, and rocks neither felsic nor mafic mostly contain plagioclase feldspar, biotite mica, and amphibole.
Peridotite is a coarse-grained, dense igneous rock composed mainly of olivine and pyroxene minerals. It is typically green in color due to the high concentration of olivine. Peridotite is commonly found in the Earth's upper mantle and is important in the formation of oceanic lithosphere.
It is made from a rock type known as Peridotite.Peridotite is an ultramafic dense, coarse-grained igneous rock consisting mostly of the minerals olivine and pyroxene containing less than 45% silica.
The igneous rock with mostly plagioclase feldspar and about 30 percent dark silicate minerals is likely a basalt. Basalt is a fine-grained extrusive rock that is commonly found in oceanic crust and volcanic islands. The dark silicate minerals in basalt are typically pyroxene and olivine.
Peridotite is a type of ultramafic rock that is primarily composed of the minerals olivine and pyroxene. It is typically found in the mantle of the Earth and is associated with igneous processes such as the formation of oceanic crust at mid-ocean ridges.
The igneous rock with mostly pyroxenes and olivine is likely a mafic rock, such as basalt or gabbro. These minerals are common in mafic rocks due to their high iron and magnesium content. Mafic rocks are associated with oceanic crust and volcanic activity.
Igneous rocks are formed from cooling and solidification of molten magma or lava. They are distinguished from sedimentary rocks, which are formed from the accumulation and compression of sediments, and metamorphic rocks, which are formed from the alteration of existing rocks due to heat and pressure. Igneous rocks often have a crystalline texture and can contain minerals such as quartz, feldspar, and mica.
Peridotite has the lowest silica content among the rocks mentioned. It is a ultramafic rock composed mostly of olivine and pyroxene minerals, with very low silica content compared to the other rocks.
The four main types of igneous rocks are basalt, granite, andesite, and rhyolite. Basalt is a fine-grained rock, while granite is coarse-grained. Andesite and rhyolite fall between basalt and granite in terms of grain size and composition.
mafic. Mafic rocks typically have high concentrations of magnesium and iron, as well as dark silicate minerals like pyroxene and olivine. These rocks are commonly found in oceanic crust and volcanic regions.
Peridotite is a type of rock that is composed mostly of the mineral olivine, along with other minerals such as pyroxene and spinel. It is commonly found in the Earth's mantle and is associated with the formation of rocks like basalt and gabbro through the process of partial melting.