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when 2 alpine glaciers in difference valleys wear down the land separating them into ridges. the top edge of that ridge
a situation where a well enters the ground below the water table, and flows without a pump
a crevasse that separates the flowing ice from the stationary ice at the head of a glacier
Chatter Marks/Crescentic Gouges
Small gouges or marks made by sudden abrupt movements of the glacier
a type of volcano that is small, has steep slopes, mild eruptions and made from loose material
a bowl shaped depression located at the head of a valley where a glacier used to be or is (area of accumulation)
type of _____? lava that forms when lava cools and the viscosity increases, and is so hot that is rattles around
Cone of Depression
forms when water is being pulled out of the ground more than its being replenished
Large sheets of ice that have to be larger than 1 MIL square miles, and are shaped like an upside down bowl
Convergent Plate Boundaries
Boundary where plates move towards eachother in either a Oceanic-Oceanic, Oceanic-Continental, or Continental-Continental collision. Also form volcanic arcs.
Cordilleron Ice Sheet
One of the worlds 3 major ice sheets who's snow comes from the rocky mountains
Crag and Tail
a structure made from rock and sediment that first piles up the rock, and slowly drops of the sediment in a ramp
Divergent Plate Boundary
Boundary where plates move apart, where seafloor spreading occurs, and rifts & ridges form, also has mild volcanic eruptions
a sediment structure made by a glacier piling up debris, and slowly getting rid of it in a ramp
Elastic Rebound Theory
the concept where two plates are trying to move past each other, experience friction, and when the pressure is released, there is an earthquake
when sediments pile up at the end of a glacier after being put there by glacial melt water
a type of wave that moves up and down, is the slowest, long, and is a surface wave that cause the most damage
a concept displayed on a scale created by richter that measures the seismic waves and the amount of energy released
Perched Water Table
a pocket of water above the main water table that forms over an impermeable layer
the melting of the snow is faster than snow being added, which makes the glacier melt away
a rock structure that was formed by a glacier piling up debris into a ramp, and then finally dropping off
these waves move side to side, can only travel through solids, and is the second wave to come
a type of volano that is made from hotspots, forms after a series of eruptions, and has mild eruptions
the movement of a glacier over a surface due to the meltwater underneath it which reduces friction
a type of volcano that is the classic looking volcano, that is very explosive, and has violent eruptions
when volcanic eruptions or earthquakes displace water, creating a large wave, aka harbor wave
Seismic Moment Magnitude
a more accurate way of measuring an earthquake, which measures the ground motion more than Richter
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