Science Plate Tectonics and Electromagnetic Waves Flashcards
(38 cards)
The component of the Earth that is composed of water
Hydrosphere
The component of the Earth that is composed of rocks and minerals
Lithosphere
The component of the Earth that is composed of air and atmospheric gases
Atmosphere
It is made up of the parts of Earth where life exists. The worldwide sum of all ecosystems
Biosphere
Were used to describe the deepest layers of the Earth
Seismic Waves
These waves travel through the interior of a body such as the Earth’s inner layers
Body Waves
A wave that is considered to be the fastest seismic waves. They travel parallel
P Waves
A wave that displaces the ground perpendicular to the direction of the propagation. They travel perpendicularly
S Waves
These waves travel more slowly through Earth material at the planet’s surface and are predominantly lower frequency than body waves
Surface Waves
A wave that shakes the surface side to side
Love Wave
A wave that moves the surface of the earth around in a circle, forward and down then back and up
Rayleigh Wave
It was the largest continent that existed 250 million years ago
Pangea
This theory explains how major landforms are created as a result of Earth’s subterranean movements
The Theory of Plates Tectonics
This theory is mostly associated with the scientist Alfred Wegener. Landmasses would drift across the Earth, sometimes plowing through oceans and into each other
The Continental Drift Theory
German Meteorologist that proposed the Theory of Continental Draft.
Alfred Wegener
The process by which new oceanic crust is formed at mid-ocean ridges and spreads outwards, pushing older crust away from the ridge
Process of Seafloor Spreading
It is when tectonic plates beneath the Earth’s surface diverge
Continental Rift Valley
Two plates are moving away from each other. Will produce mid-oceanic ridges
Divergent Boundary
Two plates are moving towards each other forming either a subduction zone or an orogenic belt
Convergent Boundary
The plates slide against each other in the opposite directions. Horizontal strike-slip fault occurs. No mountains or volcanoes are produced
Transform Boundary
What are the effects of Divergent Boundaries
-Conti-Conti = Rift Valleys
-Oceanic-Oceanic = Mid Ocean Ridge
What are the effects of Convergent Boundaries
-Conti-Conti = Mountains
-Oceanic-Oceanic = Trenches
-Conti-Oceanic = Mountain Valleys
What are the effects of Transform Boundaries
-Earthquakes, Faults
A charged particle or body produces a field around itself
Electric Field