Even professional tree-ring scientists have trouble with olive trees: An earlier study showed that when different tree-ring laboratories received samples of wood from the same olive trees, the ...

Counting the rings on the sample can tell us the trees' age, but it can also tell us what weather patterns were like each year. NOAA explains, “trees will have narrow rings during cold periods ...

To determine a tree's age, scientists collect a core sample from the plant's base and then count its rings. This dating of tree rings is called dendrochronology and it can be a valuable tool for ...

We took this sample in July 2021, after the tree should already have been growing for months. No sign of cells indicating new growth could be seen. As a dendrochronologist , I examine tree rings ...

Tree-ring sample with avalanche event scar labeled. (USGS) Across North America, tree cookies build out a long history of fire, climate, and human activity.

The tree ring samples were gathered from 13 sites around the intersection of the Chic-Choc and McGerrigle ranges, in areas that have never been clearcut by the forestry industry.

How tree rings help make a case that a 19th century shipwreck in Argentina could be a ship built in Warren, ... after sanding to make tree rings stand out. This sample contained 258 annual rings.

But it also gives archaeologists a valuable tool they can use to date wooden artifacts by cross-referencing tree-ring sequences in different samples. In the case of the World Trade Center ...

Stock illustration of a solar storm (main) and tree rings (inset). A huge solar storm around 7,000 years ago has helped archaeologists date an ancient settlement using tree rings.

Subsequent coring and analysis of Methuselah by Tom Harlan at the Laboratory of Tree-Ring Research dated the innermost tree ring to 2491 BCE. Thus, in 2023 Methuselah’s age would be 4,514 years old.

Tree ring data from the Pacific Northwest reveal that the region’s average summer temperature in 2021 was the highest since at least the year 950. Skip to content Subscribe or renew today ...