Magma that is low in silicon produces a quiet volcanic eruption.
They're covered by sedimentary rock .
Hope this helps :) !!
Answer:
Increased seismicity and increased gas emission means the building of pressure.
Explanation:
- Various factors like the earthquakes, tsunamis, gas release, and the mid slides and the occurrences of the avalanches indicates that the ground deformations and the build of a pressure cell that is going to blow out form the weakest part of the earth.
- <u>It can be seen through the thermal motioning systems, like those of the satellite imagery and the hydrological studies of tides and the ocean currents. Also the mass movement and raptures, rocks fall and the debris slides.</u>
When rising convection current of magma occurs and push the plate apart.
hope it helps~
Chemical weathering would be the oxygen reaction.