Natural Hazards & Plate Tectonics

Front 1

recent trend in world wide natural disaster occurrence

Back 1

increasing steadily

Front 2

this constitutes a prediction rather than a forecast for a natural event

Back 2

a magnitude 4.5 earthquake will occur in Washington on may 9

Front 3

the energy for plate tectonics comes from where

Back 3

heat from the earths core

Front 4

what would you not expect at sites where one plate is subducting beneath another?

Back 4

creation of a new sea floor

Front 5

what is the thinnest layer of the earth

Back 5

the crust

Front 6

what hazard would you expect to see at a transform fault boundary

Back 6

earthquakes

Front 7

CDTH; convergent, divergent, transform fault, hot spots

Back 7

where earthquakes are generally found

Front 8

when magma cools, atoms arrange forming minerals, if cooling rapid you get lava and minerals can only be seen under microscope

Back 8

crystallization

Front 9

heat and intense pressure affect rocks deep beneath earths surface, where they deform by flowing and bending under stress

Back 9

metamorphism

Front 10

when ingenious or metamorphic rocks are subject to intense heat they melt and produce what

Back 10

magma

Front 11

weathering and erosion of rocks, transport and deposition of sediment, ingenious processes (lava released during volcanic eruptions)

Back 11

surface processes

Front 12

burial of sediment in ocean basins to form sedimentary rocks, or the low-grade metamorphism of rocks under the influence of low temp and pressure

Back 12

processes occurring in shallow subsurface (right underneath the surface)

Front 13

high grade metamorphism of rocks, rocks melting, crystallization of intrusive ingenious rocks (granite) and high temp and pressure

Back 13

processes occurring in the deep subsurface

Front 14

when magma crystalizes internally to form intrusive ingenious features...

Back 14

crystallization occurs deep below the surface

Front 15

which of the following rock types is most abundant on earths land surface?

Back 15

sedimentary rocks

Front 16

surface process that creates large quantities of sediment and dissolved elements from preexisting rocks

Back 16

weathering

Front 17

lava cooling & crystalizing to form ingenious rocks, weathering, transport, deposition

Back 17

earths surface

Front 18

sediment undergoing lithification

Back 18

earths shallow surface

Front 19

rock melting, high temp & pressure, metamorphism, magma cooling & crystalizing to form intrusive rocks

Back 19

earths deep surface

Front 20

south & north American, pacific, Australian indian, antartic, eruasian