Mercury concentrations in fig trees could provide useful information about mining activity in the rainforest over time ...

Today, the precious metal is just as sought after ... An international team of researchers has now examined tree rings of species native to the Peruvian Amazon to determine if trees could be ...

then laser cuts metal into individual pieces, joining them with “thick and prominent” welding to mimic tree bark or sap. Hand engraving the tree rings is the hardest part, says Hyungjun ...

Two medieval rings that were unearthed by a pair of metal detectorist friends in fields ... and I am delighted with the result.” Tree surgeon Richard Girling, also 63, discovered a gold posy ...

“I was working in a tree at the time of the auction, so didn’t know how much the ring had sold for until I saw Mark, and I was amazed that it had sold for almost double the pre-sale estimate.” The ...

Tree surgeon Richard Girling ... A medieval gold ring with an inscribed love message was unearthed by metal detectorist Richard Girling and sold at auction for £11,000 (Richard Girling/PA ...