Plate Tectonics Flashcards
states that the earthβs outer mechanical layer, the lithosphere, is divided into large continentβsized plates that are constantly moving.
Plate Tectonics Theory
are where the plates meet
Boundaries
3 Types of Plate Tectonics Boundaries
- convergent boundary
- divergent boundary
- transform boundary
what type of P.B:
β β
- Convergent
- collides or towards
- causes earthquake
- forms volcanoes and mountains
what type of P.B:
β β
- Divergent
- away or spread apart
- fissures, cracks, and rifts occurs in the surface
what type of P.B:
ββ
- Transform
- slide past each other
- causes earthquake and tsunami
Major Plate Tectonics
- Pacific Plate
- North American Plate
- Eurasian Plate
- African Plate
- Antartic Plate
- Indo-Australian Plate
- South American Plate
Minor Tectonic Plates
- Nazca Plate
- Philippine Plate
- Arabian plate
- Caribbean Plate
- Cocos Plate
- Scotia Plate
- Juan de Fuca Plate
2 types of layers of the earth
compositional (chemical)
mechanical (physical)
are determined by their components or materials/elements
Compositional layers
are determined by their physical properties or behavior/mechanism that happen in each layer
Mechanical layers
Compositional Layers
- crust
- mantle
- core
Crust
outermost and thinnest layer of the earth
Mantle
The thickest and most massive layer. The planetβs mantle consist of MAGMA
Core
the innermost layer which is divided into separate regions. mostly made of IRON and NICKEL
- inner outer core
- solid inner core