meteorites Flashcards
1
Q
what are the 3 types of meteorite?
A
iron
stony
carbonaceous
2
Q
what are iron meteorites made up of?
A
iron and nickel
3
Q
what layer of the earth are iron meteorites thought to represent?
A
core
4
Q
what are stony meteorites made up of?
A
peridotite
5
Q
what layer of the earth are stony meteorites thought to represent?
A
mantle
6
Q
what are carbonaceous meteorites made up of?
A
water and organic compounds
7
Q
what are carbonaceous meteorites thought to represent/
A
composition of material before planet formed
8
Q
what are the evidence for impact craters? x5
A
they're circular quartz grains shocked or melted rock strata tilted by impact material at base is brecciated ejected material falls back to earth n an inverted sequence
