[I swear] by Heaven which returns and the earth which splits. (Qur'an, 86:11-12)
The Arabic word "sadA" in the above verse means "cracking, splitting apart." Allah's swearing by the splitting of the Earth points to an important phenomenon, as do the other scientific miracles in the Qur'an. Scientists first descended to the depths of the seas and oceans in order to study mineral resources in 1945-1946. One of the most important facts to emerge from that research was the fissured structure of the Earth. The rock layer on the external surface of the Earth was split by large numbers of cracks (faults), tens of thousands of kilometres long, running from north to south and east to west. Scientists also realised that there was molten magma under the sea, at depths of 100-150 km.
The above representative pictures show the fragmented structure of the Earth. The magma layer under the Earth’s crust is allowed to escape to the surface by this fragmented structure. This significantly reduces the temperature of the Earth.
Due to these splits and cracks, lava flows from volcanoes on the sea bed. Due to this fissured structure, a significant amount of heat is also given off, and a large part of molten rocks forms the mountains under the oceans. If the Earth did not possess this structure, which allows large amounts of heat to escape from its crust, life on Earth would become impossible.37
If the Earth’s surface did not permit high levels of heat to escape, life on Earth would be impossible.
There is no doubt that such information, which required such advanced technology to be discovered, being given 1,400 years ago is yet another proof that the Qur'an is the Word of Allah.
37. “Arctic Explorers,” 23 June 2000, http://tea.rice.edu/schauer/6.23.2000.html; Tetsuzo Seno, Satoru Honda, “Mantle Convection and The Global Sea Level: When Did Plate Tectonics Begin on The Earth?,” www.eri.u-tokyo.ac.jp/seno/sealevel_abst.html; “Mantle Convection,” http://theory.uwinnipeg.ca/mod_tech/node195.html; Prof. Zaghloul El-Naggar, “Scientific Signs in the Qur’an: Examples from the Area of Earth Sciences,” www.nekkah.com/Main/EngPage/Scientific_Signs_in_the_Quran.htm.