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What does magnesium number tell us about the source of volcanic melts?
Wiki User
∙ 12y ago
Mg# indictes the level of evolution of a volcanic rock (e.g. Basalt) since leaving its birth place (mantle). Mg# of a primitive basalt which originates in the mantle is ~70. As the basalt undergoes evolution while passing through crust (interacting with and assimilating other rock types in the crust) the Mg# goes down from primitive number 70. For example: To get an idea of Mg#s of basalts see the below given Mg#s
Least evolved basalt (60 - 69)
Moderately evolved basalt (50 - 59)
Evolved basalt (40 - 49)
Highly evolved basalt (< 40)
Wiki User
∙ 12y ago
The magnesium number in volcanic melts can provide information about the depth of the melting process. A higher magnesium number typically indicates a larger degree of partial melting at greater depths in the Earth's mantle, while a lower magnesium number suggests shallower melting. This parameter helps scientists understand the origin and characteristics of volcanic magmas.
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What temperature in degrees Fahrenheit does magnesium melt?
Magnesium melts at a temperature of 1202 degrees Fahrenheit.
What happens to ice nd magnesium when heated?
When ice is heated, it melts into water and eventually evaporates into steam as it reaches its boiling point. When magnesium is heated, it undergoes a chemical reaction with oxygen in the air to form magnesium oxide and emits a bright white light.
What element has the highest melting point magnesium silicon or chlorine?
The element with the highest melting point is silicon. Silicon has a melting point of 1414°C, while magnesium melts at 650°C and chlorine is a gas at room temperature.
Why melting point of ice is less than that of magnesium oxide?
The difference in melting points between ice and magnesium oxide is primarily due to the strength and type of chemical bonds present in each compound. Ice is held together by weaker hydrogen bonds, resulting in a lower melting point compared to magnesium oxide, which has stronger ionic bonds. Additionally, magnesium oxide has a higher ionic charge and smaller ionic radius, contributing to its higher melting point.
If you burn magnesium in oxygen what do you get?
The magnesuim melts and the reaction of it is it produces a bright light ! then when it has cooled down the magnesuim turns into magnesuim oxide because the magnesuim and oxygen attach together because the particles mix together to make magesuim oxide! :)
What temperature in degrees Fahrenheit does magnesium melt?
Magnesium melts at a temperature of 1202 degrees Fahrenheit.
What gives off light but is not a lamp and melts but is not a lolly and disappears when you use it?
magnesium
What is the heat source that melts ghee?
the heat of the stove melts the ghee very fast
A subducted plate melts forming?
Volcanic magma. This melted material can rise to the Earth's surface through volcanic eruptions, creating new landforms like volcanic arcs and island chains.
Research on Which substances melts ice better salt sugar or chalk?
These substances are chlorides of calcium, sodium and magnesium.
When rock melts at calderas and then is forced toward the crust as what?
When rock melts at calderas, it forms magma. This magma is then forced towards the Earth's crust as lava through volcanic eruptions.
Why does chocolate melt on marshmallows?
It melts on everything when introduced to a heat source
What element has the highest melting point magnesium silicon or chlorine?
The element with the highest melting point is silicon. Silicon has a melting point of 1414°C, while magnesium melts at 650°C and chlorine is a gas at room temperature.
What happens to ice nd magnesium when heated?
When ice is heated, it melts into water and eventually evaporates into steam as it reaches its boiling point. When magnesium is heated, it undergoes a chemical reaction with oxygen in the air to form magnesium oxide and emits a bright white light.
Is magnesium a a solid liquid or gas?
Magnesium is a solid in it's natural state on Earth. It melts at 1,202 degrees Fahrenheit, at which point it is a liquid. It boils away at 1,994 degrees Fahrenheit, at which point it is a gas.
A majority of the melts in the Earth form through the partial melting of ultramafic mantle rock These newly-formed magmas are?
Rich in magnesium and iron due to their origin from ultramafic mantle rock. They are usually less viscous compared to melts formed from other types of rock. The composition of these magmas can vary depending on the degree of partial melting and the specific mantle source.
What are the most common and serious volcanic hazards?
When, for various reasons, rock from the mantle melts, it sometimes moves to the Earth's surface through weak spots in the crust, releasing heat, gasses, and rock--a volcanic eruption
