In which landform of the ocean floor is Madagascar and sri lanka are related
Answers
Answer:
Indo-Australian plate.
Distance from Sri Lanka to Madagascar is 4,747 kilometers. This air travel distance is equal to 2,950 miles.Towards the end of the Paleozoic Era, when plant and animal life had undergone a long period of Evolution, the land now comprising Sri Lanka formed part of a vast Southern Continent, to which the name Gondwanaland has been given, and which included the modern Indian Sub-continent, the greater part of Africa, South America and Australia. The area of the earth now comprising the North Indian Plain, together with the mighty Himalayan range formed part of an ocean known as the Tethyss sea, bordering Gondwanaland on the North, and almost encircling the earth. There were lots of climatic changes ,with long periods of Arctic cold temperatures followed by warmer periods with luxuriant vegetation dominated by Pteridophyta-ferns and club mosses to which is due the petroleum and coal deposits found in many parts of what was once Gondwanaland. Certain forms of fauna and flora being peculiar to Ceylon and Madagascar, and a certain degree of similarity which Sri Lanka has with parts of Africa, the Deccan and Western Australia in lithology, Structure etc, are to be explained by these regions having been part of one continent in remote geological times, before continental drift took place. The recent discovery of large deposits of precious and semi-precious stones in Madagascar like sapphires, rubies, tourmalines, etc. , is additional evidence for the above phenomenon, and clearly establishes the fact that Sri Lanka which has been famous for its gemstones for thousands of years and Madagascar were closely associated together in the southern continent of Gondwanaland. Almost all the minerals and gem stones discovered in Sri Lanka over the centuries are now gradually being discovered in Madagascar too.The dismemberment of the Gondwanaland continent by continental drift into several units including the Indian Sub-continent Southern Africa and Australia is believed to have taken place towards the close of the Mesozoic Era, but Sri Lanka still continued to be a part of the Indian Sub-Continent, and many more millions of years had to elapse before it became a separate geographical entity in the Miocene period of the Tertiary Era.
During the Miocene period, a belt of sea much wider than the Palk Strait of today flooded the land between Tamil Nadu and the Puttalam-Jaffna coast, thus creating the Island of Sri lanka. At the bed of this sea, shells and other remains of marine organisms accumulated. Subsequently fringes of this sea were brought up above the sea-level on both sides and this led to the formation of Miocene limestone outcropping along the north-west coast of Sri lanka and the Jaffna Peninsula on the one side and the Karikal region on the other.