Consider the following statements 1 Most magmas are a combination of liquid solid and gas 2 Water va...........

Geography Earth Geology

Download Solution PDF

Consider the following statements:

1.Most magmas are a combination of liquid, solid and gas.

2.Water vapour and carbon dioxide are the principal gases dissolved in a magma.

3.Basaltic magma is hotter than the silicic magma.

4.The magma solidified between sedimentary rocks in a horizontal position is known as dike.

How many of the statements given above are correct?

Only One

Only Two

Only Three

All Four

छोटे Courses बड़े Results

Master Earth Geology

Prepare through Micro-courses

Try Now

Explanation:

I, II and III

Most magmas are a combination of liquid, solid and gas." - This statement is correct. Magmas are typically composed of liquid (molten rock), solid crystals, and dissolved gases.

"Water vapor and carbon dioxide are the principal gases dissolved in a magma." - This statement is correct. Water vapor and carbon dioxide are among the gases that can be dissolved in magma.

"Basaltic magma is hotter than the silicic magma." - This statement is correct. basaltic magma tends to be hotter than silicic magma. Basaltic magma has a lower silica content and is more fluid, allowing it to flow more easily. This is often associated with eruptions at mid-ocean ridges or hotspots and is characterized by less explosive volcanic activity.

"The magma solidified between sedimentary rocks in a horizontal position is known as dike." - This statement is incorrect. A dike is a vertical or near-vertical intrusion of magma. When magma solidifies between sedimentary rocks in a horizontal position, it is known as a sill.