Earth System
How many spheres are in the Earth System?
4
asthenosphere
The location where an earthquake is first felt on the surface is called this
epicenter
A vent or opening where magma erupts is called a
volcano
What is the most common mineral group?
silicates
What kind of system response has a stabilizing effect?
Negative feedback
The temperature above which magnetism isn't possible is called this
Curie Temperature
The instrument that records seismic waves is called a
Seismograph
This type of lava has the highest gas content of the three common types
rhyolitic (felsic)
The most stable silicate mineral in Bowen's reaction series is
Quartz
The Earth is essentially this type of system
Closed
This type of plate boundary is when two plates move apart
Divergent
A dip slip fault where the hanging wall moves down is called a
Normal fault
an island arc
calcite
What concept means that the present is the key to the past?
uniformitarianism
Volcanoes are generated at these two types of plate boundaries
subduction and divergent
This zone is created because s-waves cannot move through the liquid outer core
Shadow zone
The largest volume of lava on Earth has this composition
basaltic
What type of cleavage does halite have?
cubic (3-D)
What are the dynamic interactions between subsystems called?
cycles
Mountains are generated at this type of plate boundary
Collision
The largest magnitude earthquakes occur along this type of plate boundary
subduction
What is a volcanic mudflow called?
a lahar
Of these 3 minerals, which is the hardest: dolomite, calcite, or quartz
quartz