At the boundary
What are the three types of plate boundaries?
NEED ALL for FULL POINTS!
*Convergent
*Divergent
*Transform
What are the two processes that wear down and degrade exposed rock over time?
Weathering and Erosion
What is a crater more than 1km in diameter usually created by the collapse of a volcanic cone during a huge explosion?
TRIPLE
Caldera
What does a seismometer measure?
Number and strength of earthquakes
Why was the Mount St Helens eruption significant?
It was not expected, taught us that we always need to be alert, we got better technology, etc.
What boundary is where two plates move apart from each other?
Divergent
What type of rock is formed from magma cooling?
Igneous
What measures how easily liquid flows?
Viscosity
What does a GPS receiver evaluate?
Change in the ground movement
Name two obsidian rocks.
Obsidian, Granite, Pumice, Basalt
What boundary is where plates collide?
Convergent
What type of rock is formed due to cementation of layers of sediments?
DOUBLE
Sedimentary rock
What are rock fragments and particles ejected by a volcanic eruption called?
Tephra
What do MultiGAS and COSPEC measure?
Gas emissions and gas content in the air
What is an under monitored volcano?
A volcano that is dangerous but does not have enough data
What boundary is where plates slide past each other?
Transform
What type of rock is formed due to another type of rock that has been acted upon heat and pressure?
Metamorphic
What is a mudflow carrying volcanic material down the slopes of a volcano?
Lahar
What is the best equipment to use to ensure the safety of all volcanologists?
DOUBLE
Name 4 volcanoes
Answers vary
What is the term from where two tectonic plates meet and one sinks below the other?
DOUBLE!
Subduction
What is the physical process and chemical process by which compacted layers of sediment harden into sedimentary rock - as the layers increase, so does the heat and pressure, which cements them into a solid mass?
Cementation
What is a high-density and fast moving mix of hot lava, ash and gases ejected explosivity from a volcano?
Pyroclastic flow
What is a positive and negative about thermocouple and thermal infrared radiation?
Positives: Different things can be monitored, different options for data collection, trends of data
Negatives: Safety, Needs continuous monitoring
DOUBLE
Temperature increases
Pressure changes
Observational changes
Gas rises
GPS movement
Seismometer readings