Earth's Structure
The outermost, rock solid layer of earth
What is the crust
The theory that describes the earth's crust to be several tectonic plates that float on the asthenosphere and such movement affects many geologic structures
What is plate tectonics
When a layer of rocks break under pressure
What is a fault
a small earthquake
What is a tremor
The central channel through which gases, ask and rock are ejected.
What is the vent
The main element found in the earth's crust
What is oxygen
There are 8 major plates and several smaller plates are called this
What is the lithosphere
When a layer of rock bends under pressure
What is a fold
The study of earthquakes
What is seismology
The reservoir of molten rock (magma) that is the source of volcanic eruption
The border between the upper and lower mantle
What is the Transition Zone Mantle
one plate subjects (goes under) another
What is convergent plate
What is a syncline
the region on a fault located deep in the earth were earthquakes originate
What is the hypocenter
also called a start volcanoes, produces symmetrical, wide-based mountains that consist of alternating layers of lava and cinders
What is a composite volcano
The inner core is solid and made of these two elements
What is iron and nickel
When 2 plates move side by side on each other
What is a transform plate
Mountains formed when the edges of two adjacent tectonic plates were pushed together causing them to buckle
The most active earthquake zone
What is the circum-Pacific belt
The smallest solid ejecta
What is volcanic ash
The border between the crust and the mantle
The Mojo region
It is theorized that before the flood here was only one big supercontinent called Rodinia which broke up during the flood and created an underwater supercontinent called this
What is Pangea
The type of mountain formed along a fault; the rocks on one side of the fault are forced upward, while the rocks on the other side sink
What is a fault-block mountain
The slowest seismic wave that causes the most destruction
What is surface waves
igneous intrusions similar to laccoliths
What is batholiths