Wegener’s evidence for continental drift: Continental drift rejected-why: Pangaea: Sea floor spreading: Lithosphere (and oceanic vs. continental lithosphere): Asthenosphere: Passive vs. active margins: Plate tectonic theory (in general states….): General patterns of earthquakes and volcanoes associated with each type of boundary: Divergent boundaries Features of Sediment thickness Age of sea floor Continental rifting Convergent boundaries Subduction zones Accretionary prisms Volcanic arcs Transform boundaries Where most are found Active vs. passive Continental Collisions: Hot spots: Paleomagnetism What it is How it used What drives plate movement: Criteria for something to be a mineral: How crystals grow: Mineral properties-what they are Streak- Hardness Cleavage Fracture Specific gravity color On what basis are minerals grouped into mineral classes: Given Mohs hardness scale-determine which of two things is harder.
Wegener’s evidence for continental drift:
Continental drift rejected-why:
Pangaea:
Sea floor spreading:
Lithosphere (and oceanic vs. continental lithosphere):
Asthenosphere:
Passive vs. active margins:
Plate tectonic theory (in general states….):
General patterns of earthquakes and volcanoes associated with each type of boundary:
Divergent boundaries
- Features of
- Sediment thickness
- Age of sea floor
- Continental rifting
Convergent boundaries
- Subduction zones
- Accretionary prisms
- Volcanic arcs
Transform boundaries
- Where most are found
- Active vs. passive
Continental Collisions:
Hot spots:
Paleomagnetism
- What it is
- How it used
What drives plate movement:
Criteria for something to be a mineral:
How crystals grow:
Mineral properties-what they are
- Streak-
- Hardness
- Cleavage
- Fracture
- Specific gravity
- color
On what basis are minerals grouped into mineral classes:
Given Mohs hardness scale-determine which of two things is harder.
Wegener’s evidence for continental drift:
continents fitting together like scattering ancient fossils, rocks, mountain ranges, old climatic zone locations.
Continental drift rejected-why
because he give theory no mechanism for moving the continents.
Pangaea
a supercontinent that incorporated all the landmasses on Earth
Asthenosphere:
weak and ductile region of the upper mantle
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