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Geology Ch 1 & Ch 2
Nature of Geology
22
Geology
Undergraduate 1
09/11/2015

Additional Geology Flashcards

 


 

Cards

Term
Upper Layer
Definition
crust, oceanic and continental
Term
Mantle
Definition
thickest layer
Term
Core
Definition
deepest layer
Term
Lithosphere
Definition
stronger layer containing oceanic crust, continental crust, and uppermost mantle
Term
Asthenosphere
Definition
hot and weak, mostly solid
Term
Higher Elevation
Definition
deeper root in the earth
Term
Lower Elevation
Definition
shallower root in the earth
Term
Isostasy
Definition
relationship between crustal thickness and elevation
Term
What effects geology?
Definition
atmospheric pressure
gravity from the sun and moon
sun's energy
wind and ocean currents
gravity from Earth
forces within Earth
Term
How are sedimentary rocks formed?
Definition
in normal temperature and pressure conditions EX) lakes, mountains, glaciers, beaches, sand dunes, offshore materials
Term
How are igneous rocks formed?
Definition
at high temperature from magma EX) lava explosions
Term
How are metamorphic rocks formed?
Definition
due to changes in pressure and temperature. EX) with magma
Term
Topography
Definition
the terrain of Earth's surface and differences in it
Term
Elevation
Definition
height above sea level
Term
Relief
Definition
difference between two places
Term
Where is the oldest rock deposited?
Definition
on the lower layers of Earth
Term
Where are the youngest layers?
Definition
Upper layers
Term
What drives the continents apart?
Definition
Mid-ocean ridge
Term
Cenozoic
Definition
65 MYA, most recent
Term
Mesozoic
Definition
251 MYA, dinosaurs and flowering plants
Term
Paleozoic
Definition
542 MYA, appearance of fish, plants, insects and reptiles
Term
Precambrian
Definition
4,500 MYA, before shells and hard parts
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