Crust + Drifting Contents + Moving Earth Flashcards
studying
What is a fossils
preserved remains from an living organism
person that finds fossils is called
Palaeontologist
Amber fossils are
full body INSECTS preserved in tree sap + can be preserved for millions of yrs
Carbonation fossils are
dissolved organism except the carbon which leaves a residue showing an outline of the organism
Freezing fossils are
preserved by ice for thousands yrs if it doesn’t melt
Body fossils are a
portion of the actual organism remain E.g tooth, bone
Trace fossils are
on organism’s but ‘‘traces’’ in the rocks.
Types of trace fossils
Cast & mold, animal trace, & impression.
what rock are fossils found
Sedimentary rock
what type of Sedimentary
shale, limestone, sandstone rock
Fake fossils that looks like fossils are called
Pseudo fossils
how thick is the crust
6km - 40km
what minerals are the crust made up of
rock, sand, soil
how thick is the mantle
around 2900km
how hot and how fast does the mantle move
semi-molten + moves very slowly