Earths Interiors Flashcards
Endogenous and forces example
Earthquake n volcano
Exogenous forces example
Temperature, meteorites, tidal force etc
Direct sources
Volcano
Surface rocks
Rocks
Drilling
Mining
Indirect sources
Earthquake
Gravitational force
Temperature
Meteorites
Mantle is overall ____
Solid
Mantle is composed of
Silicon n magnesium ( Sima ji )
Core is composed of
Nife ji
Crust composed of
Sial ji ( silicon and aluminium)
Crust is overall
Solid
___ waves travel through crust
PSL
__ wave travels through core
Only P wave
Inner core is
Solid
Outer core is
Liquid
Asthenosphere is
Solid / fluid
Asthenosphere also called
Outer mantle
Discontinuity seperating outer n inner core
Lehman
Discontinuity seperating outer n inner crust
Conrad
Discontinuity seperating outer n inner mantle or Asthinosphere n inner mantle
Repiti
Discontinuity which seperates inner mantle n outer core or core and mantle
Guttenberg
Discontinuity which seperates outer mantle n inner crust or asthenosphere n inner crust or crust n mantle
Moho
Lithosphere consists of
Crust + outer mantle
Tectonic plates present in
Lithosphere
All earthquake occur in
Lithosphere
All earthquake occur in
Lithosphere
All earthquake occur in
Lithosphere
All earthquake occur in
Lithosphere
Core of Earth is solid due to
Pressure + density+ temp increases with increase in depth
Largest Time period
EON
Smallest time period
Age
Time period arrangement
Eon > era> period> epoach > age
Oceanic crust is __
Thin n denser than continental crust
Crust is of 2 types
Oceanic n continental crust
Crust is __ in nature
Brittle
Crust constitutes
1% of Earth’s volume
Mantle constitutes
84% of Earth’s volume
Core constitutes
15 % of Earth’s volume
Lower mantle which state
Solid
Crust is composed of
Basaltic rock
Tectonic plates present in
Lithosphere
Which layer is source of magma
Asthenosphere
Which layer is source of magma
Asthenosphere
Lithosphere consists of
Crust+asthenosphere
Inner core is
Solid
Outer core is
Liquid
Density relation
Density increases as we go from crust to core