The highest mountain in the world is
Mount Everest, reaching 29,035 feet (8,853.5 m) on the border
between Tibet and Nepal in the central Himalaya ranges.
The summit was first reached by Sir Edmund Hillary and
Tenzing Norgay on May 28, 1953. The local Tibetan name
for the mountain is Sagarmatha, meaning goddess of the sky,
but the name Everest was given to the peak after Sir George
Everest in 1865, the British surveyor general of India who
first determined the height and location of the mountain
known then as Peak 15. Mount Everest continues to rise at a
few millimeters per year because of the continued convergence
between India and Asia, uplifting the Himalaya and
Tibetan plateau.
The base of Mount Everest consists of a series of gneisses
and leucocratic granite sheets and dikes. A normal fault cuts
across the south face of the mountain and juxtaposes
unmetamorphosed Paleozoic marine sediments against the
underlying crystalline basement. The normal fault is thought
to represent the early stages of orogenic collapse, caused by
gravitational stresses leading to collapse and spreading of
mountain ranges that reach elevations too high to be held up
by the strength of underlying rocks.
See also HIMALAYA MOUNTAINS.














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