Assessing the age of a living tree is straightforward enough—just extract a core from the ... assemble your own tree-ring chronology. You'll start with a tree-ring sample from a living tree ...

For hundreds of years, the Amazon has been exploited for its gold. Today, the precious metal is just as sought after, but the ...

The illegal activity of gold mining was a thriving business deep within the forest canopies and infiltrated nature, leaving ...

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

The core samples were taken in 2019 and could be dated back to 1941 ... told Mongabay by email. Gerson added that using tree rings to measure mercury could be useful for monitoring progress toward the ...

Of the three tree types sampled, only the fig tree (Ficus insipida) reliably produced rings. Core samples were collected in 2019 and dated back to 1941, providing nearly 80 years of environmental ...

The annual rings inside certain trees near these mines ... Researchers first took core samples from fig trees at five sites. Two locations were far removed from mining activity, but three were ...

Mercury pollution in the Amazon is caused by gold mining. Discover how tree core samples identify the concentration and ...