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Geology exam 1

Geology Prof Muller

all things are moving away from each other the big bang
theory that planets grow out of rings of gas, dust, and ice surrounding a new born star nebula theory of planetary formation
tiny sold pieces of rock and metal that collect in a planetary nebula and eventually accumulate to form a planet planetesimal
a celestial body that orbits the sun, has sufficient mass for its self-gravity, and has cleared the neighborhood around its orbit planet
4 inner planets with iron cores and a silicate mantle terrestrial planet
4 outer planets that mostly consist of hydrogen and helium jovian planet
a celestial body that orbits the sun, has sufficient mass for its self-gravity, and has not cleared the neighborhood around its orbit. ex) pluto dwarf planet
earths age? approximately 4.6 billion years
used isotopes of iron meteorites to give the first accurate age of the earth claire patterson
the sinking of elements such as iron and nickel into the earths center segregation of elements
rock that makes up the outermost layer of the earth crust
thick layer of rock below the earths crust and above the core mantle
section of the core, between 2900 and 5150 km deep, that consists of liquid iron alloy outer core
inner section of the core and consisting of solid iron and nickel alloy inner cor
relatively rigid, non-flowable, outer thick layer of the earth, constituting the crust and the top of the mantle lithosphere
layer of the mantle that lies between 100–150 km and 350 km deep; this layer is relatively soft and can move when acted on by force. Boundary between the lithosphere and the mantle asthenosphere
Created by: KAzetapi