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Geology 100: Basic Vocabulary

Common prefixes, suffixes, and roots

  • clast: broken
  • -cline: tilted, gradient
  • de-: reduce
  • dis-: separation, opposite
  • ex-: out of, away from
  • feld: field
  • geo-: earth
  • hydro: water
  • iso: same
  • -lith: stone
  • -meso: middle
  • meta-: change
  • -morph: form, shape
  • plagio-: combining form
  • paleo-: ancient
  • pelagic: pertaining to ocean
  • pluto-: deep seated (Roman god of underworld)
  • pre-: before
  • proto-: first
  • pyro-: fire
  • spar: crystalline materials
  • -sphere: ball
  • strat-: layer
  • stria: small groove
  • sub-: under
  • super-: above
  • syn-: together
  • tecto-: build or construct. Geology means movement of structures

Samples

Here are some examples based on the above:

  • decline: reduce tilted.
  • pyroclast: fire broken.
  • stratosphere: layer sphere
  • hydrosphere: water sphere
  • isomorph: same shape
  • metamorphic: change shape
  • mesolith: middle stone
  • feldspar: field crystalline structure
  • plagioclase feldspar:

Minerals

The 8 most common elements in Earth’s crust (by mass) are: 

- 46.6% Oxygen (O)
– 27.7% Silicon (Si)
– 8.1% Aluminum (Al)
– 5.0% Iron (Fe)
– 3.6% Calcium (Ca)
– 2.8% Sodium (Na)
– 2.6% Potassium (K)
– 2.1% Magnesium (Mg)

  • Potassium feldspar, potassium (K), aluminum (Al), silicon (Si), and oxygen (O).
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Geology 100: Exam 1 review

Lecture 08: 2020-10-01 — Thu Oct 1, 2020

Exam

No class previous two lectures

  • Strategy:
    • Review powerpoint
    • Listen lectures
  • Formation of the Universe, Solar System, Earth
    • How did planets form
    • How old is Earth
    • What is core of earth made of
    • Order of layers in Earth
    • How did atmosphere get oxygen?
    • Difference between inner and outer (terrestrial vs jovian)
  • Minerals
    • ionic vs covalent bonding
    • proton, neutron, electron
    • Hardest mineral?
    • Why is hardest?
    • Which two most abundant elements in crust of the earth
    • What are silicates?
    • Why are Feromagnesian sillicates dark?
    • Softest mineral (Mohs hardness scale)
    • What is cleavage in minerals?
    • What are isotopes
    • What is nucleus of atom made of?
    • Definition of a rock
    • What are 3 different types of rocks
    • What is magma? What is lava
    • 3 type of magam: felsic, intermediate, mafic
    • What is obsidian
    • Order of crystallization in the Bowen reaction series
    • Difference between inclusive and exclusive rocks
    • What is porphritic text in igneous rocks
    • Dominant mineral in limestone and marble
    • What kind of rock is coal?
    • What is dominant mineral in salt
    • What is foliation
    • What is difference between intrusive and extrusive rocks
    • Difference between contact and regional metamorphism
  • Volcanoes
    • What is a lahar
    • Most active volcanoe
    • Three different types of volcanoes: shield, cone, strata
    • What is a pyroclastic flow
    • How many active volcanoes in the world?
    • What is a caldera
    • Difference between active, extinct, and dormant volcanoes
    • Which Hawaiian island is likely to erupt
    • Pacific rim of fire is where most composite volcanoes are located
    • What kind of volcano is Mt. St. Helens
    • What type of geologic setting are the Hawaiian islands?
    • What is a Plinian eruption?
    • If Yellowstone erupted today how much ash would fall in New York?
    • what is the difference between a VEI 5 and a VEI 7
    • Which volcano was a VEI 8 eruption 74,000 years ago (caused global climate change for next few years; decrease in homosapian population down to 12,000)
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