Plate Tectonic Theory Flashcards
Lithosphere
Cool, rigid, outermost layer of earth divided into large pieces call tectonic plates. Consist of the crust and uppermost part of the mantle.
Continental Drift
The theory that continents were once connected but have drifted apart.
Plate Tectonic Theory
Theory that the lithosphere is dived into tectonic plates that slowly move on top of the asthenosphere.
Sea-Floor Spreading Evidence
A parallel pattern of rock material found at identical locations on each side if the mid-Atlantic, ridge reveals rock of the same geologic age and polarity.
Fossil Evidence
Impressions of organisms left in rocks lagers that indicate the organisms over lived in the area.
Convergent Boundary with Mountain Building
A major geological event; occurs when continental plates of equal density converges.
