Marine-fossil sea lilies in limestone (8000 meters) and ammonites (extinct cephalopods) in the lower layers (4000 meters) of Everest, explain quite nicely the the amount of time it took to form the Himalayas. 
The Indian continent drifting 12 inches per year (super fast is geological terms). 50.5 million years ago when the supercontinent broke apart, then 30 million years later India crashed into Asia, forcing the sea floor up to form the Himalayan mountain range.
The same sea lilies are found on every continent from the same time period, conclusive evidence of the prehistoric geology of the plates, movements, and direction the continents journeyed.
50.5 million years plus 30 million years is 80.5 million years—a little less than six days in biblical time.
Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs. Its major materials are the minerals calcite and aragonite…Wally?
TheCommonAtheist 