Geomorphology Flashcards
terrestrial plants are (4)
- Mercury
- Venus
- Mars
- Earth
Jovian (AKA gas giants) are
- Jupiter
- Saturns
- Uranus
- Neptune
Uniformitarianism
processes that are happening today occurred in the same way in the past.
is this uniformitarianism or catastrophism
Key to the past is the present
uniformitarianism
is this uniformitarianism or catastrophism
earth is young
Catastrophism
is this uniformitarianism or catastrophism
Earth is old
uniformitarianism
catastrophism
earth is formed through unique supernatural means and affected by a series of catastrophes
earth is _____ years old
4.6 billion
periods of time from greatest to smallest
- eons
- eras
- periods
- epochs
- ages
eons
hundreds of millions to billions of years
eras
many millions of years
periods
millions of years
epochs
few million years
ages
thousands of years
what’s period are we in
Holocene
periods are divided by
mass extinction events
endogenic vs exogenic
endogenic
builds things up
exogenic
breaks things down to SEA LEVEL
where does exogenic process break things down to
SEAL LEVEL
examples of exogenic
- weathering
- mass movements
- erosions
examples of endogenic
- rock formations
- plate tectonics
- isostatic adjustments
what would earth look like with ONLY endogenic processes
very high and flat
what would earth look like with ONLY exogenic processes
very low with lots of bumps
what creates our topology
both endogenic and exogenic
a planet is a _______ body
celestial
what defines a planet
- an orbit around a sun
- has sufficient mass to assume hydrostatic equilibrium (a nearly round shape)
- has “cleared the neighbourhood” around its orbit
the three dwarf planets are
Ceres
Pluto
2003 UB313
what separates terrestrial and jovian planets
asteroid belt
terrestrial or jovian planets
smaller
terrestrial
terrestrial or jovian planets
larger
jovian
jovian or terrestrial planets
closest to sun
terrestrial
jovian or terrestrial planets
farthest from sun
jovian
parts of Earth’s interior
- Solid inner core
- Liquid outer core
- Solid lower mantle
- partially molten upper mantle
- crust
what layer of the earth’s interior has the LARGEST radius
Solid inner core
what element makes up the solid inner core and the liquid outer core
iron
what makes up the mantle
solid lower mantle and the partially molten upper mantle
A
Inner core
B
outer core
C
mantle