LET YOUR LAVA FLOW
Before lava reaches Earth's surface, the molten material is known as this
What is magma?
When magma hardens in a volcano's pipe before reaching the surface, it results in this landform
What is a volcanic neck?
Mauna Loa and Kilauea are both this type of broad, gently sloping and gently erupting volcano
What is a shield volcano?
This landform occurs when magma flows and cuts across existing rock layers
What is a dike?
Small earthquakes around a volcano indicate it is in this stage
What is active?
The major volcanic belt that encircles the Pacific Ocean
What is the Ring of Fire?
In the Hawaiian language, lava that is very fast-flowing, hot and runny is called this
What is pahoehoe?
This provides the force that causes magma to erupt to the surface
What are trapped gases dissolved in the magma?
This type of volcano consists of alternating layers of ash, bombs, and cinders, and smooth-flowing lava. Mount Fujiyama is one of them.
What is a composite (or strato-composite) volcano?
When a magma chamber empties out and can no longer support the top of a volcanic mountain, the mountaintop collapses in on itself and leaves a hole known as this
What is a caldera?
This is the name for the bowl-shaped area around a volcano's central vent
What is a crater?
New Zealand, Japan, Hawai'i, and the Aleutians are examples of these that can form from the collision of two oceanic plates
What are island arcs?
This landform occurs when rising magma is trapped by horizontal layers of rock, and the magma forces the rock layers to bend upward
What is a dome mountain?
This forms when magma forces itself between rock layers and hardens
What is a sill?
Ash, cinders, and bombs build up in a steep pile to form this type of volcano
What is a cinder cone?
Fast-running, thin lava flowing from long cracks in the crust cool and harden, then the process repeats eventually forming a high, level area known as this
What is a lava plateau?
Avalanches of mud, melted snow, or rock, as well as clouds of burning, toxic gases and ash that covers crops and clogs engines can all be classified as these
What are volcano hazards
The Black Hills of South Dakota are this type of volcanic landform that results from magma pushing and bending layers of rock upward as it tries to rise
What are dome mountains?
In the Hawaiian language, this type of lava is slightly thicker and slower-moving, and consists of jagged lava chunks
What is aa?
These two things, along with molten, rock-forming substances, are found in magma
What are dissolved gases and water from the mantle?
Due to the high-silica content of its magma, a cinder cone volcano always experiences this type of eruption
What is explosive?
Shiprock in New Mexico (Tse Bit' a'i in the Dine language) is an example of this volcanic landform
What is a volcanic neck?
This is the stage of a volcano in which no more magma is left in the chamber and it it is most likely never going to erupt again
What is extinct?
We would find volcanoes erupting out of a mid-ocean ridge at this type of boundary
What is a divergent boundary?
A pyroclastic flow happens with this type of volcanic eruption
What is explosive?
This is like a furnace in the bottom of a volcano. It is the place from which the magma erupts
What is a magma chamber?
This is the main hazard from a quiet volcanic eruption
What are lava flows?
This is a mass of rock that forms when a large body of magma cools inside the crust. The Sierra Nevada mountains contain this type of landform
What is a batholith?
This cloud of ash, cinders, rocks, and toxic gases moving at speeds of up to 400 miles per hour means "fire rock particles"
What is pyroclastic flow?
The two most likely locations for undersea volcanoes
What are mid-ocean ridges and subduction zones?