Answer:
Infrequent but highly explosive
Explanation:
At a subduction zone, the descending plate carries with it sediments containing water and carbon dioxide.
These substances are trapped as fluids at high pressure in the rising magma.
When they reach atmospheric pressure at the surface, they become gases that expand suddenly and explosively.
your answer would be D: crust and outer part of the mantel
Answer:
The intermediate to felsic eruptions may be usually moderately to highly explosive
Explanation:
- Felsic lavas are hot, high in silica and volatiles, and have a high viscosity of fluid matter. They are thick and heavy and resistance movements.
- They thus represent the shielded nature of volcanoes etc. Fluid lava flow, tephra, lapilli, and volcanic bombs.
- Felsic magma is rich in feldspar, and silica as opposed to mafic magma which is rich in magnesium and iron.
- Felsic magma is usually acidic.
- As a result of the high intensity of volcanic eruptions, the lava is sticky and dark in color also it's bulky, etc. An example of Mount Saint Helens that erupted destroying both property and human life.
Answer:
D. is the correct answer.
Explanation:
