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35 Cards in this Set

  • Front
  • Back
Igneous
o Fresh rock; straight from center of earth; comes form magma
o NO FOSSILS
Sedimentary Rock
o Comes from igneous
• Weathered
• Formed by little particles of igneous rock
• Has fossils
Metamorphic Rock
o Changed rock
• Sedimentary or igneous rock that is changed by plate movement and buried into magma
Geologic Time
• Eras
• Periods
• Epochs
• Species zones and sub zones
law of super-position:
o Younger sediments are deposited on top of older sediments
Biostratigraphy
o Succession of fossils:
Lithostratigraphy
succession of rock types
Layers of crust
Crust
Mantle
Core
Two continents collide
mountain ranges form
Oceanic plate meets continent
subduction of oceanic plate
- oceanic plate is denser because lava cools faster under water
Two oceanic plates collide
Volcanoes form
Lateral slipping plate movement
earthquake
Pangaea
Original formation of earth - all continents were together
Biostratinomy
post death, pre-burial
diagenesis
post burial, pre discovery
taphonomy
study of fossil preservation
Hard parts
high chance of survival
soft parts
lower chance of survival
recrystallization
original mineral alters over time to a more stable form
Carbonization
refractory components of organic tissue is driven off - leaves carbon residue
Replacement
original material is dissolved away and new mineral grows in its place
permineralization
spaces within organic tissues become in-filled with secondary material
diagenesis
post burial, pre discovery
taphonomy
study of fossil preservation
Hard parts
high chance of survival
soft parts
lower chance of survival
recrystallization
original mineral alters over time to a more stable form
Carbonization
refractory components of organic tissue is driven off - leaves carbon residue
Replacement
original material is dissolved away and new mineral grows in its place
permineralization
spaces within organic tissues become in-filled with secondary material
trace fossils
burrows, feces, foot prints, etc
mold
outer imprint of organism
cast
replica of organism
mitochondria
makes energy for cell
chloroplast
organeles that allow photosynthesis