Ring tree dating
Each year, most trees add an extra layer of growth to their trunks. As the tree gets older, the inside of the trunk looks like it is made up of a series of circles.The center of these circles, or the absolute core of the tree, is known as the pith.We undertake both private and commercial commissions in dendrochronology throughout the UK: Most previous reports are available for purchase and these are listed on the Building page.The Tree-Ring Services web-site provides further information on our services and dendrochronology and dendroclimatology research. Some of our more recent reports are listed below: Buildings we date by dendrochronology are generally also published in Vernacular Architecture and summaries of the typographic features are available from the Building Archaeological Research Database (BARD). Wolffia using a increment borer to age-date an old sierra juniper (Juniperus occidentalis var.australis) on a steep 9,000 foot ridge of Pine Mountain in the San Gabriel Range of southern California.The 1906 ring pattern in wood Sample A (which was cut from Stump A) correlates with a 1906 ring pattern in Sample B which was cut from an older, undated Stump B. By matching up similar spaced rings in Samples B, C and D, the ages of ancient timbers can be determined.
One on sampling of live trees on the Ancient Oak at Lullingstone Park and one on dating a timber-frame building at The Rock Inn, Chiddingstone.
In this example, wood Sample D dates back to the year 1691.