Geology 2

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Geology 2
2011-11-07 19:41:20

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  1. the
    Earth outer segments or lithosphere plates move relative to each other. Most volcanos
    are located near the plate tectonics activity.
    Plate Tectonic
  2. that continents were once joined
    into a single landmass, which broke into continents or fragments that move with
    respect to one another. The layers consist of soft outer crust on top of a
    heavier crustal material.
    Continental Drift Theory
  3. is first part of the core made from nickel
    and iron and it’s a solid that radiates heat. The second part is the outer core
    is above the inner core and made of liquid compostion of the same
    Earth Inner Core
  4. is the earth’s outer ridge, which consist of the
    mantle, oceanic crust and continental crust. The Asthenosphere is the outer mantel
    above the Lithosphere, which is able to float above the Asthenosphere due to its
  5. is the reversal of the Earth’s magnetic
    poles from north to south to south to north.
    It poles has change so many times in intervals called polarity epochs.
    Magnetic Reversals
  6. is a fault which displaces oceanic ridges
    called strike- slip. The San Andres
    fault is an example of transform fault. ( ***** ) is conversion oceanic plate
    boundary which is force down into the mantel of another plate. The cause of earthquakes due to the
    Transform Fault & Suduction Zone
  7. is a underwater mountain ridge which is made
    of basalt rock which is found in oceanic basins.
    Oceanic Ridge
  8. where two tectontic plates go
    against each other and creates mountains.
    Divergent Plate Boundary where two plates move away from each
    other. The crust is formed from the
    magma that is left between the two plates.
    Convergent Plate Boundary
  9. a localized zone that melts below the lithosphere that probably overlies a mantle plume
    Hot Spot (Mantle Plume)
  10. Index (guide) Fossil is a remains organism that lived in a
    particular geological time period. This
    helps identify the rock layer to a specific time frame.
    Index (guide) Fossil
  11. is determining an order of past geologic events
    without absolute geologic dating with the use of fossils within rock or rock
    layering to determine age.
    Relative Dating
  12. is a break in the geologic record which is
    shown by the erosional surface separating younger strata from older rocks.
  13. refers to the methods to which the age
    relationship between various strata of the Earth’s crust is settled. The two methods are physical correlation
    characteristics of strata and comparing the type of fossils correlations in
    various strata.
  14. that forms from radioactive decay related from the parent isotope can become a
    parent isotope if its radioactive. The cycle starts againg with the daughter
    becoming a parent and having a daughter and the last daughter isotope forms
    will become stable and nonradioactive.
    Daughter Isotope