write briefly about the distribution of Oceans and continents
please guys help me
Answers
Answer:
you can check on Google if u want brief analysis
Explanation:
the oceans mainly have more water more living organisms stay in its portion
Explanation:
CONTINENTAL DRIFT: ABRAHAM ORTELIUS a Duchy map maker 1596 first proposed the possibility of joining the continents such as America with Europe and Africa ANTONIO PELLEGRINI drew the map showing the three continents together.
ALFRED WEGENER a German meteorologist put forth THE CONTINENTAL DRIFT THEORY. According to him,
All continents formed a single continental mass called PANGAEA
All oceans formed a single universal ocean called PANTHALASSA
AROUND 200 mya THE PANGAEA BEGAN TO SPLIT INTO TWO LARGE MASSES CALLED LAURASIA and GONDWANA LAND
By further splitting Laurasia formed northern continents and Gondwana land formed southern continents.
EVIDENCES TO SUPPORT THE CONTINENTAL DRIFT
1. The matching of continents (jig-saw fit)
A. the shorelines of S. America and Africa have remarkable match
B. a map was produced by Bullard in 1964 to show the jigsaw fit of these two continents.
C. it was fit around 1000 fathom line of the shoreline
2. ROCKS OF SAME AGE ACROSS THE OCEANS
A. the belt of ancient rocks of 2000 my from Brazil coast matches with those of Western Africa
B. Marine deposits of South America and Africa belong to Jurassic age.
3. TILLITE
A. sedimentary rock formed out of glacial deposits
B. sediments from India have similar counter parts at different continents of south.
C. tillile indicates prolonged glaciations
D. The same glaciations is found in Africa, Falklands, Madagascar, Antarctica and Australia
E. the glacial tillite indicates that unambiguous evidence of palaeo climates and drifting of continents.
4. PLACER DEPOSITS
a. Formation of placer deposits of gold in Ghana coast has no source rock.
a. The gold bearing veins of rocks are found in Brazil
5. DISTRIBUTION OF FOSSILS
• Identical species of animals and plants are found along the coastal regions of the different continents.
• lemurs occurs in India, Madagascar and Africa.
• The contiguous Land mass was called LEMURIA
• the fossils of mesosaurus were found in only South Africa and Brazil.