This reads like something from Zachariah Sitchin's "12th Planet". Sitchin claims his work derives from study of Sumerian tablets and scrolls. It details efforts of the Nephalim to mine gold to create a fine particulate suspension in the atmosphere as shielding from external sources of radiation. Supposedly humans were "engineered" as manual laborers to mine gold on earth to provide for this need. It's amusing to see similar ideas being floated here.
"It details efforts of the Nephalim to mine gold. . ." Years ago I read an AP story which reported the remains of an ancient goldmine in central Africa. Testing showed the timbers to be at least 245,000 years old. Also kept an clipping of a story reporting the existence of a very large hunk of gold, some platinum, (larger than a football field) orbiting in the asteroid belt.