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How and where are igneous rocks formed?
Igneous rocks are formed when molten magma cools and solidifies either beneath the Earth's surface (intrusive) or on the surface (extrusive). Intrusive igneous rocks are formed from magma that cools slowly underground, while extrusive igneous rocks are formed from lava that cools quickly on the surface.
What are volcanoes about?
A volcano is formed when magma from deep inside the Earth rises to the surface and explodes with great force, spreading lava and ash everywhere.
How are marias formed?
marias are formed by hot ash and lava coming through the moons craters
Differences between lava and ash landforms and magma landforms?
Lava landforms are created by the eruption and cooling of molten lava on the Earth's surface, forming features like lava flows, lava domes, and lava tubes. Ash landforms are the result of volcanic eruptions that produce ash and volcanic debris, creating features like cinder cones, ash clouds, and pyroclastic flows. Magma landforms are underground structures formed by the cooling and solidification of magma, such as plutons, batholiths, and dikes.
A mountain that forms when layers of lava and ash erupt and builds up is called a?
A mountain formed by the build up of lava and ash is a composite volcanic cone.
What is it called when magma erupts onto the surface of the volcano?
lava
Four landforms created from lava and ash?
Three landforms that can be created from ash are cinder cone volcanoes, composite volcanoes, and shield volcanoes. Lava plateaus can also be formed.
Is a lahar lava?
No. A lahar is a mudflow formed by a mixture of water and volcanic ash.
What is crack in the earths crust where volcanic material escapes?
A crack in the Earth's crust where volcanic material escapes is known as a fissure. Fissures can occur during volcanic eruptions, allowing magma, gases, and ash to flow out from the Earth's interior to the surface. These openings can vary in size and length, and they often serve as pathways for lava to reach the surface during volcanic activity. Fissures can also contribute to the formation of features such as lava plateaus and rift valleys.
What is the difference between acid lava cones and ash and cinder cones?
Acid lava cones are smaller and much steeper than ash/cinder cones. Acid lava cones are almost convex in shape and are formed due to thick lava that does not flow freely and cools before reaching very far. This gives in the conical 'dumpy' shape. While ash and cinder cones are more symmetrical and concave in shape. They are formed due to volcanic lava or volcanic bombs (of solidified lava) that was shot up in the air, cool and hardened and broke up into tiny pieces (of ash or cinders) before coming back down to the earth's surface.
What is volcano rock?
A volcano rock is rock formed from ash or lava erupted from a volcano.
Lava flows and volcanic ash are examples of magma that has reached the earth's surface true or false?
True. Lava flows and volcanic ash are indeed examples of magma that has reached the earth's surface during a volcanic eruption.
