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عرض بوربوينت الفصل الأول _ الصفائح الأرضي... PowerPoint PPT Presentation


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عرض بوربوينت الفصل الأول _ الصفائح الأرضية لعلم الأرض ثالث ثانوي ف1.pptالدرس الأول : انجراف القاراتالدرس الثاني توسع قاع المحيطالدرس الثالث : حدود الصفائح وأسباب حركتها

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عرض بوربوينت الفصل الأول _ الصفائ...

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- - ..


. . 1- 1 .


continental drift ( ) Pangaea 200 2- 1.


. 200 200 3- 1 .


3- 1


3- 1 : .


. 4- 1. .


290 5- 1. : : .


6- 1 .


:

: . ..


: . .




.


. ..


magnetometer 7- 1 . . . .


8- 1 80000 km 3 km .


8- 1 11 km . 9 km . : : 11 km .


: 9- 1 180 3.5 . 180 : 180


magnetic reversal . . 10 - 1.


Paleomagnetism


. magnetometer .


. isochron 13 - 1. . ..


seafloor spreading . 14 - 1 . . . .



. .


Tectonic plates . 16 - 1 . ( ). ().


.divergent boundaries rift valley . . .


convergent boundaries subduction . 18 - 1. 18 - 1. . 1- 1 .


- 1- 1 . 1- 1 .


-. 1- 1 . - .


. .


( )

transform boundaries 19 - 1 .


. :

. 20 - 1 : . - - .


. 21 - 1 .ridge push slab pull . .


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