volcanic ash

Modern Science Meets Ancient Stone: Using volcanic ash dating, magnetic patterns preserved in ancient sediments, chemical analyses of rock, and microscopic plant traces, the researchers reconstructed an environmental timeline that connects early toolmaking to major climatic transformations.

Many football fans will be aware of the story of the volcanic ash cloud that scuppered Robert Lewandowski's potential move to Blackburn Rovers - but there was another club in England the striker wishes he had joined.

For seven weeks, the team will slowly melt the hard-won ice, releasing ancient dust, volcanic ash, and even tiny marine algae called diatoms that were locked inside when water turned to ice.

It is a reference to the volcanic ash that helped preserve its bones in an ancient riverbed.

Residents were also urged to wear face masks to protect themselves from volcanic ash.