Looking at the Pieces Flashcards
fossilized leaves found on rocks from million years ago in different continents
glossopteris
4 Evidence of Plate movements
- Fit of the Continents
- Fossils
- Seafloor Spreading
- Ocean Drilling
it is formed from organic compounds such as dead plants and animals
coal
are deposits of rock debris left by glacier
tillites
are preserved remains of organisms from the past
fossils
this theory suggests that hot, less dense materials moving out from the crust rise towards the surface through the mid-ocean ridge
seafloor spreading theory
is a naturally occurring iron-rich mineral that is influenced by a magnetic field
magnetite
rocks known as fossil magnetism
paleomagnetism
uses a network of satelites to map out the surface of Earth
Global Positioning System (GPS)
uses large radio telescopes
very long baseline interferometry (VLBI)
it is based on Earth’s magnetic field provided by rock samples
Paleomagnetic method
is based on the fracture that extends from a transform fault near the mid-ocean ridges
geometric method
it is considered a less accurate means of measuring plate movement
seismic method