Unique remains give vital clues to man's origins and early travels, say experts.
President Vladimir Putin this week unveiled a new $25 billion pipeline transporting Siberian oil to the Pacific.
Forest fire may have caused the blasts which led to 400 people being evacuated.
Victims burned to death while fighting blaze after three massive explosions.
Unique Paleolithic prize for scientists, a jaw of an early human who 'feasted on woolly mammoth' - but may have been cannibalised.
Alexei Tsydenov, 40, told Vladimir Putin that he can raise the quality of life 'in a fairly short period of time'.