Pathivukal

  
(Supercontinent Splitting & Drifts)

. 
B.E.(Hons) P.Eng (Nuclear), 

" ,    
  ,  !
    !
     
   !
    
   
 !"

Jayabarathan "  ,         ,     ,     !          ,     .    ,      ,        4.5   !"      (1904-1968)

"       ,       !      ,       ,    .   ,       !   ,  [Erosion & Uplift]    "  ,   ,  [The Founder of Modern Geology (1785)]

"           !    ,    ,     ,     !"

  [Crust]    [Liquid Core]   !   ,    [Continental Drift & Plate Tectonics]   [Fossil Records]   "   ,   [Dr. Alfred Wegener (1880-1930)]

"    [Thory of Plate Tectonics]     !     [Evolutionary Theory],    [Theory of Relativity]    ,  !"   , ,    [Dr. Maurice Ewing, Dean of American Oceanographers (1906-1974)]

Tectonic Plates of the world.

:  , , , ,           .   ,              ! 1950       [Global Plate Tectonics],        ,      !   4.6        [Accordion]   ,   !             !  , , ,   ? ,    ?      [Marine Fossils]     ?   ,          !

   !

                !           ,                 ! ..1620             (1561-1626)    ,             !   ,   1912                [Fossil Examples]      .

  ,            [Tectonic Plate] !  -  .    ,   ,    ,                    !          [Satellites]    !       ,               !        ,  ,   .

  !

Plates Moving

1885       [Eduard Suess (1831-1914)]    :       , , , ,        .         [Fossil Fern Glossopteris (Plant)]    .    "" [Gondwana, a district in India]  .           ,         .       [Lauresia]  200       [Pangaea]       .      ,  [+ ( )]      .      ""  ,  .     " "  .

  !

1912           .      ,       ,        !          .    ,   [Fossil Plants & Fresh-Water Animals]  , , ,         .       ,               .        [Fossil of Reptile Mesosaurus]   ,     .

         !      [Theory of Plate Tectonics]  .   ,                .   ,       .     ? 1850       [Trans-Atlantic Telegraph Cables]  ,       .         .

  1950     ,   [Oceanographers]       40,000         !      ,  ,  ,     [Lava] !          ,      !    ,       ,            !

    !

1950   "  " [Theory of Plate Tectonics]    .     , -  , ,   ,  ,         .      ?       ,     .      [Mid-Oceanic Ridges].        !      !     ,   [Subduction Process]    .    .            .       .         [San Andrea Fault]     !

     !

              .   :

1.            !      [(40-60)  ]            [Hot Viscous Mantle] !

2.      ,         .  200        !        [ ,  , , , , , ]    !            !

3.       [Deep Fissures in Mid-Ocean]        !                   !

4.       ,     .

a)  [Granite]   ,    [Basalt]     ,       [Titanic Bulldozer]  !      ,         !   ,   ,    !

b)     ,     [Ocean-Floor Tench] !    ,      .      [Lava]       !

c) ,    , ,  ,   [Collision, Subduction, Shearing, Separation]     [Seismic Disturbances]    .

()

:
1. The Continental Mosaic -Reader's Digest Atlas of the World [1987]
2. Hutchinson Encyclopedia of the Earth By Peter Smith [1985]
3. Earth's Restless Crust -ABC's of Nature, Reader's Digest [1984]
4. The Long Journey of Continents By: Ronald Schiller -The Marvels & Mysteries of The World Around US, Reader's Digest Publication [1972]
5. Continental Drift & Plate Tectonics [www.zephryus.co.uk/geography/home.html] (Mar 20, 2003)
6. Pangaea, Gondwana, Laurasia, Plate Tectonics, Alfred Wegener From: Wikipedia Encyclopedia
7. Theory of Continental Drift By: Jim Cornish, Newfoundland, Canada (Sep 2001)
8. Continental Frift, Geology & Oceanography. [Several Internet Articles]
9. Everyday Geography By: Kevin McKinney (1993)
10 Eduard Suess, Austrian Scientist From: Wikipedia Encyclopedia

jayabarat@tnt21.com [S. Jayabarathan (February 21, 2005)]