Scales and gadgets
Volcanologists use an instrument to help predict when the volcano will erupt
Light meter
About 80% of the world's earthquakes can occur on this belt
circum-pacific belt
Most of the earth's surface is covered by deposits of sand and mineral fragments usually lay down by water these deposits are called what
Sedimentary
What is a volcano that is inactive but can erect again
Dormant
Particle blocker solid volcano ejecta is a
Pyriclasts
This scale is used to measure the damage of an earthquake does
Modified Mercalli scale
What is the earthquake zone stretching from southern Europe to Indonesia
Alpide belt
The inner core of the earth is thought to be
Solid iron or nickel
What volcanoes formed partly by explosive eruption of Ash and rock fragments and partly by mild lava flows
Composite volcano
Lava and water solidifies almost instantly for being rounded structures
Pillow lava
This scale is considered the most reliable method for measuring the energy released by an earthquake
Moment magnitude scale
85% of all earthquakes are this type of earthquakes
Shallow Focus
What is the most abundant element in the Earth's crust
Oxygen
What is an opening in the Earth's surface through which hot gases, ash, molten, rock are ejected from the Earth's interior
Vent
Large irregular shaped lumps made of lava that Harden before being thrown out of a volcano
Volcanic blocks
An instrument used to record the vibrations caused by an earthquake
Seismograph
How do you scientist determine the point where an earthquake begins
Doesn't travel time of seismic waves
What is the boundary between the crust and the mantle called
Moho
Volcanoes that probably will not erupt again
Extinct
Solid ejector larger than 2 millimeter that less than 64 mm in diameter
Lapilli
What is a computer system that stores the processes Geographic data from various sources
Geographic information system or (GIS)
What type of a fold occurs when rocks Buckle to an Arch like structure
Anticline
What is the bottom of the mantle called
Core-mantle boundary
Massive underground volcanic rock that is similar to laccolith but much larger is what
Batholith
Hardened lava that forms rough Jagged rocks with a crumbly texture
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