The towering peak of Mount Everest, standing at over 8,848 metres above sea level, holds an extraordinary geological secret. Scientists have discovered marine rocks and fossils near the summit of Everest, revealing that the highest point on Earth was once part of an ancient ocean floor.
These marine fossils include remains of sea creatures such as trilobites, crinoids, and other ancient marine organisms. Their presence in the Himalayan rocks provides strong evidence that the region was submerged under a vast ocean known as the Tethys Ocean millions of years ago.
The dramatic transformation occurred due to the movement of Earth’s tectonic plates. Around 50 million years ago, the Indian Plate collided with the Eurasian Plate, pushing the seabed upward and forming the Himalayas.
As the plates continued to collide and compress, layers of marine sediment were lifted thousands of metres above sea level, eventually becoming the peaks we see today. This geological process explains how rocks formed under the ocean now appear at the highest elevations on Earth.
Today, climbers and geologists exploring Everest sometimes encounter limestone and marine fossils embedded in rock layers, serving as a reminder of the mountain’s incredible journey from the ocean floor to the roof of the world.
The discovery highlights the dynamic nature of our planet and demonstrates how plate tectonics can dramatically reshape Earth’s surface over millions of years.
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