akhil jaya
TRANSCRIPT
WELCOME
POWER POINT PRESENTATION
PRESENTED BY,
AKHIL.J.P
SOCIAL SCIENCE
CRUST THE OUTER MOST LAYER OF EARTH IS CALLED
CRUST
CRUST CAN BE CLASSIFIED INTO TWO-OCEAN FLOOR AND CONTINENTAL FLOOR
OCEAN FLOOR IS KNOWN AS “SIMA” CONTINENTAL FLOOR IS KNOWN AS “SIAL”
OCEAN FLOOR IS MADE UP OF SILICA AND MAGNESIA
CONTINENTAL FLOOR IS MADE OF SILICA AND ALUMINIA
LITHOSPHERE UPPER PORTION OF MANTLE AND CRUST
TOGETHER IS CALLED LITHOSPHERE
MAXIMUM THICKNESS OF LITHOSPHERE IS 100 KM
LITHOSPHERE IS FOUND AS 7 MAJOR AND DESSON OF MINOR PLATES
MANTLE JUST BELOW CRUST THERE IS MANTLE
MANTLE HAS TWO PART UPPER MANTLE AND LOWER MANTLE
CORE BELOW LOWER MANTLE THERE IS CORE
CORE IS IN TWO TYPE INNER CORE AND OUTER CORE
CORE IS MADE UP OF NICKEL AND IRON
CORE IS ALSO KNOWN AS NIFE
AESTHENOSPHERE BETWEEN LOWER MANTLE AND UPPER MANTLE
THERE IS AESTHENOSPHERE
MAGMA FOUND IN AESTHENOSPHERE
THANK YOU