Casper Star Tribune wrote:Authorities say what’s believed to be a 600,000-year-old vein of volcanic ash has been uncovered at a landfill just north of Lincoln, Nebraska.
Casper Star Tribune wrote:Alfred Benesch & Co. engineer Greg Westphal, who is overseeing the contract for a landfill expansion, said finding ash in the area isn’t unusual, but its size is. The vein is estimated at 250 feet long, 5 to 15 feet wide and 4 to 5 feet deep.
Casper Star Tribune wrote:Authorities say what’s believed to be a 600,000-year-old vein of volcanic ash has been uncovered at a landfill just north of Lincoln, Nebraska.
Casper Star Tribune wrote:Alfred Benesch & Co. engineer Greg Westphal, who is overseeing the contract for a landfill expansion, said finding ash in the area isn’t unusual, but its size is. The vein is estimated at 250 feet long, 5 to 15 feet wide and 4 to 5 feet deep.