There are multiple reasons for the variations in type, quality, and quantity in minerals, such as:
- place of formation, on the surface, or inside the ground and how deep inside.
- pressure; extremely important for the structure of the minerals as well as the mixing of mineral types.
- temperature; similar to the pressure, in fact in combination with it, affects the structure of the minerals.
- tectonic activity and volcanic activity; cause the other factors and are also responsible for the quantity of minerals.
Answer:
Kilauea
Explanation:
Kilauea is a typical shield volcano and Mt. St. Helens is a great example of a stratovolcano. Although both are currently active, the types of eruptions that we could expect from each mountain are quite different. Kilauea, while more active, features slow moving basaltic flows that even a person on foot could escape. The eruptions tend to be gentle and do not usually cause a great deal of damage. Mt. St. Helens, on the other hand, is much more dangerous because of it's violent eruptions accompanied by large amounts of ash, violent lava and mudflows and flying debris. As a stratovolcano it is less active but for more powerful and unpredictable.
