SCIENCE 9 PRELIM QUIZ

These are small, steep mounds composed of tephra or volcanic fragments formed by explosive eruptions.

It is part of the Irosin Caldera, a complex volcanic field spanning most of Sorsogon.

This volcano is located in Pampanga, on the island of Luzon. There are hiking trails, well-known, and there is a rich history of folklore and superstition surrounding the mountain.

These are driven by the thermal expansion of the dissolved gases in lava

• Peléan eruptions

• Magmatic Eruptions

• Vulcanian eruptions

• Strombolian eruptions

      Results from the extreme buildup of gases in the magma chamber and conduit (which become as much as 75% gas).

• Plinian eruptions

• Peléan eruptions

• Strombolian eruptions

• Magmatic Eruptions

      These eruptions are driven by the violent thermal contraction of magma when it interacts with water, resulting in an explosion.

      The primary products of eruptions are ________________ which are molten rock materials that have made it to the surface.

      Located at areas of high geothermal gradient, which typically means proximal to volcanoes.

Extract geothermal fluids by drilling production wells into the reservoir.

Takes the form of a shallow magmatic intrusion or naturally high geothermal gradients. This is the only component that has to be naturally occurring.

• Geothermal system

• Heat source

• Geothermal Power Plants

• Geothermal energy