Table of Contents
- 1 What type of material is produced by nonexplosive eruptions?
- 2 Which type of rock would you expect to form from an explosive eruption?
- 3 What kind of rocks are formed during a volcanic eruption?
- 4 What are the materials goes out in a real volcanic eruption?
- 5 What type of rock is formed by volcanic activity answer?
- 6 Which type of rock is formed when heated compressed over time?
What type of material is produced by nonexplosive eruptions?
lava
Magma that flows onto the Earth’s surface is called lava. A. Nonexplosive eruptions are the most common type of volcanic eruptions. These eruptions produce relatively calm flows of lava in huge amounts.
Which type of rock would you expect to form from an explosive eruption?
Ch. 15 Review Volcanoes
| Question | Answer |
|---|---|
| What is the main hazard from a quiet volcanic eruption? | lava flows |
| Tall, cone shaped mountains in which layers of lava alternate with layers of ash are called | composite volcanoes |
| Which type of rock would you expect to form as the result of an explosive eruption? | pumice |
What makes a volcano explosive?
A volcano’s explosiveness depends on the composition of the magma (molten rock) and how readily gas can escape from it. As magma rises and pressure is released, gas bubbles (mainly of water vapor and carbon dioxide) form and expand rapidly, causing explosions.
What kind of rocks are formed during a volcanic eruption?
When lava reaches the surface of the Earth through volcanoes or through great fissures the rocks that are formed from the lava cooling and hardening are called extrusive igneous rocks. Some of the more common types of extrusive igneous rocks are lava rocks, cinders, pumice, obsidian, and volcanic ash and dust.
What are the materials goes out in a real volcanic eruption?
Volcanic eruptions produce three types of materials: gas, lava, and fragmented debris called tephra.
What type of material is ejected by the volcano?
What type of rock is formed by volcanic activity answer?
igneous rocks
the eruption of lava from a volcano always form igneous rocks. It is a common concept that when the red hot fluid is inside volcano we call it magma and when it erupts it is called lava. There are two kinds of igneous rocks i.e. Intrusive (which form inside a volcano) and Extrusive (which form by eruption of volcano).
Which type of rock is formed when heated compressed over time?
Metamorphic rocks
Metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock. The parent rock can be either sedimentary, igneous, or even another metamorphic rock. The word “metamorphic” comes from Greek and means “To Change Form”.
Which of the following materials are commonly ejected when a volcano erupts?