Show:
Geology & Stuff I
Geology & Stuff II
Volcanoes
I
Volcanoes II
Plate Tectonic/
Earthquakes
100
How are igneous rocks formed?
What is from the cooling and solidification of lava?
100
This layer of earth is the youngest.
What is the top layer?
100
These cause a rift valley to form.
What are diverging plates?
100
This is all of the ash and lava ejected from a volanco.
What is a tephra plume?
100
Plate tectonics are located in this layer of the Earth.
What is the lithosphere?
200
This is how metamorphic rocks are formed (two factors).
What is through heat and pressure?
200
This is the name for a fracture in the earth.
What is a fault?
200
This is where most volcanoes are found.
What is at a plate boundary or the Ring of Fire?
200
This is the volcanic hazard that travels the farthest.
What is ash?
200
This is thought to provide the energy that moves tectonic plates.
What is convection currents within the mantle?
300
*** DAILY DOUBLE!!! *** This type of sedimentary rock forms from broken pieces of rocks compacted or cemented together.
What is clastic sedimentary?
300
The holes in rocks describe its ____________, while the interconnected holes describe its ___________.
What are porosity and permeability?
300
This type of magma that does not flow well has a high level of _________.
What is viscosity?
300
A tiltmeter is used to predict volcanic eruptions. This is also used to predict eruptions.
What is an increase in earthquake activity?
300
This is why most of the mountain ranges form on the planet.
What is because of colliding plates?
400
An artesian well forms from this type of aquifer.
What is confined?
400
This is the direction North America is moving.
What is west?
400
This type of magma produces shield volcanoes.
What is low silica magma?
400
This is why we monitor volcanoes.
What is to save lives?
400
This is the type of seismic wave that moves like an accordion through the Earth.
What is a primary wave?
500
On the inside of a meander bend the velocity is _____.
What is slower?
500
What two factors cause sedimentary rocks to form?
What are compaction and cementation?
500
Slope and the amount of silica in lava affect this.
What is the rate of lava flow?
500
This is the type of boundary that creates new ocean floor.
What is at a divergent boundary?
500
This type of seismic wave cannot travel through the liquid parts of the earth.
What is a secondary wave?