| AB | |
| a weak spot in the crust where magma has concerned the surface. You are watching: Slab that forms when magma squeezes between layers of rock | |
| magma | the molten absent from the mantle which has not reached the surface |
| lava | liquid magma that reaches the surface. |
| Ring of Fire | A major belt that volcanoes the rims the Pacific Ocean. See more: How Long Does Tuna Last In The Fridge ? Canned Tuna Faq |
| island arc | A string of islands developed by the volcanoes follow me a deep-ocean trench. |
| hot spot | an area whereby magma from deep in ~ the mantle melts v the crust over it |
| magma chamber | the pocket beneath a volcano wherein magma collects |
| pipe | a long tube v which magma move from the magma room to Earth's surface |
| vent | the opening v which molten rock and also gas leave a volcano |
| lava flow | the area extended by lava as it pours out of a volcano's vent |
| crater | a bowl-shaped area the forms about a volcano's main opening |
| silica | a material uncovered in magma the is developed from the aspects oxygen and also silicon |
| pyroclastic flow | the expulsion of ash, cinders, bombs and gases during an explosive volcanic eruption |
| dormant | describes a volcano that is not right now active, however that might become active in the future |
| extinct | describes a volcano the is no longer active and is unlikely to erupt again |
| geyser | a spring of water and heavy steam that builds up pressure underground and erupts at consistent intervals |
| shield volcano | a wide, gently sloping mountain made of great of lava and also formed by quiet eruptions |
| cinder cone | a steep, cone-shaped hill of little mountain make of volcanic ash, cinders, and bombs piled up approximately a volcano's opening |
| composite volcano | a tall cone-shaped hill in which layers the lava alternative with class of ash and also other volcano materials |
| caldera | the big hole in ~ the peak of a volcano vormed as soon as the roof that a volcano's magma room collapses |
| volcanic neck | a deposit of hardened magma in a volcano's pipe |
| dike | a slab of volcano rock developed when magma pressures itself throughout rock class (a magma intrusion!) |
| sill | a slab of volcanic rock developed when magma squeezes in between LAYERS the rock |
| intrusion | an igneous absent layer developed when magma hardens Earth's surface |
| batholith | a massive of rock formed when a huge body that magma cools inside the crust |
| basin | a broad, bowl-shaped valley formed where the tardy is bending downward |
| Central Valley | the huge basin in California between the coastline Ranges and the Sierra Nevada |
 | Create your very own activities |