Lava slowly flowing out of a fracture in the Earth's surface :)
Slow cooling in the upper mantle
Slow cooling in the upper mantle
lava slowly flowing out of a Quick cooling on Earth's surface. apex
Obsidian is formed as extruded lava with a high silicon content that cools quickly. So the environment would be a volcano.
you would find igneous rocks with small crystals at the bottom of the volcano, this is because when the rocks crack. It brakes apart into igneous rocks
Slow cooling in the upper mantle
Slow cooling in the upper mantle
Slow cooling in the upper mantle
lava slowly flowing out of a Quick cooling on Earth's surface. apex
it depends on what year level you are in and of coarse what school and country.
extrusive ingeneous rocks
Extrusive, Igneous rocks possibly lavas or ignimbrites.
When lava cools, it forms what is known as an extrusive igneous rock. Volcanoes are also associated with alteration from heat and fluids. Therefore you would expect to find extrusive rocks as well as altered rocks.
Obsidian is formed as extruded lava with a high silicon content that cools quickly. So the environment would be a volcano.
You would find extrusive igneous rocks. Beyond that it depends on the volcano.
extrusive igneous rock
You would find extrusive igneous rocks. Beyond that it depends on the volcano.