What Causes Violent Volcanic Eruptions? As magma rises and pressure is released, gas bubbles (mainly of water vapor and carbon dioxide) form and expand rapidly, causing explosions. Magmas with high silica content tend to erupt violently, because they are viscious. Which type of magma is known for the most violent eruptions? Because they form in
Which Of The Following Affects The Viscosity Of A Magma? Viscosity of Magmas Viscosity is the resistance to flow (opposite of fluidity). Viscosity depends on primarily on the composition of the magma, and temperature. Higher SiO2 (silica) content magmas have higher viscosity than lower SiO2 content magmas (viscosity increases with increasing SiO2 concentration in the
Which Type Of Rock Is Formed Deep Below The Surface? Sedimentary rocks are formed on or near the Earth’s surface, in contrast to metamorphic and igneous rocks, which are formed deep within the Earth. The most important geological processes that lead to the creation of sedimentary rocks are erosion, weathering, dissolution, precipitation, and lithification. Which
Can Humans Dig To The Mantle? Humans have been to the moon and explored almost every corner of the planet – but there’s one place they have never been. An international group of scientists say they plan to be the first group to drill successfully into the Earth’s mantle, the planet’s interior, which lies just
Has A Human Been In The Mantle? Humans have been to the moon and explored almost every corner of the planet – but there’s one place they have never been. An international group of scientists say they plan to be the first group to drill successfully into the Earth’s mantle, the planet’s interior, which lies
Do Volcanic Rocks Contain Minerals? All igneous rocks, other than pure volcanic glass, contain minerals. The minerals provide details on the chemical composition of the rock, and on the conditions in which the magma originated, cooled, and solidified. What minerals are found in a volcano? Volcanoes directly or indirectly produce or host deposits of aluminum,
Which Type Of Rocks Are Formed By Cooling Magma? Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. What type of rock is the first to form from cooling magma? Extrusive igneous rock, also known
What Is A Igneous Rock Made Of? Igneous rocks form when magma (molten rock) cools and crystallizes, either at volcanoes on the surface of the Earth or while the melted rock is still inside the crust. All magma develops underground, in the lower crust or upper mantle, because of the intense heat there. What is
How Does The Composition Of A Melt Produced By Partial Melting Compare With The Composition Of The Parent Rock? Partial melting occurs in rocks because the different minerals that compose rocks have different melting points. The melt take the compostion of the heated minerals, while the solid parent rocks remains with the solid minerals that
Which Of The Following Is An Intrusive Igneous Body Answers? The correct answer is C batholith. Batholith is an example of intrusive igneous rocks body, it is because , the magma has introduced into pre-existing rock layers. Which of the following is an intrusive igneous body? The correct answer is C batholith. Batholith is an