The Quran on Mountains

According to Lutgens and Tarbuck, a book entitled Earth is a fundamental reference material in many colleges throughout the world and One of its two authors is Professor Emeritus Frank Press. For the last 12 years, he was President of the National Academy of Sciences, Washington, DC. He has been science adviser to former US President Jimmy Carter. His book says about the basic roots of the mountains. These roots are firmly built into the ground, therefore the mountains have a form like a peg. The Quran characterized the mountains in that respect. Allah has said in the Quran:
اَلَمْ نَجْعَلِ الْاَرْضَ مِهٰدًا ۙ
وَّالْجِبَالَ اَوْتَادًا ۙ
“Have We not made the earth as a bed, and the mountains as pegs?” (Quran, 78:6-7)
In the Quran, Allah (S.W.T) said:
وَاَلْقٰى فِى الْاَرْضِ رَوَاسِىَ اَنْ تَمِيْدَ بِكُمْ وَاَنْهٰرًا وَّسُبُلًا لَّعَلَّكُمْ تَهْتَدُوْنَۙ
“And He has set firm mountains in the earth so that it would not shake with you.” (Quran, 16:15)
Likewise, the contemporary platform tectonic theory argues that mountains operate for the earth as stabilizers. Since the end of 1960, this understanding of the place of mountains as earth stabilizers has become understandable within the context of plate tectonics (El-Naggar).
Could anyone have recognized the genuine mountain shape during Prophet Muhammad’s time? Can anyone think that, as scientists claim, the solid enormous mountain before it stretches far down into the world and has a root? A big number of geological literature describe solely that part above the surface of the earth while describing mountains. Because these books have not been written by geological experts. However, the reality of the Quranic scriptures was proved by modern geology.