White pine (Pinus strobus L.) and hemlock (Tsuga canadensis L. [Carr.]) tree-ring chronologies in the Quebec City area.

White pine Pinus strobus L.) and hemlock Tsuga canadensis L. (Carr.) tree-r ing chronologies in the Quebec City area. Reported here are two dendrochron ological series, one for white pine, the Champlain series (1470-1987), the second for hemlock, the Riviere-du-Moulin series (1524-1982), which togethe r span the period of historical colonisation for eastern North America. The construction of a long, white pine reference series was made possible by u sing series built locally from: 1) subfossil trees sampled in the Charlevoi x region at a site where a landslide occurred after the 1663 earthquake (pe riod 1470-1662); 2) living trees sampled in the Lotbiniere region at the Ri viere-du-Moulin site (period 1734-1987), and 3) wood excavated at various a rcheological sites in the Quebec region, along with samples from the two hi gh altars in the Ursulines' chapel, located in Old Quebec city. Going back to late 17th century and early 18th century, samples from the third group b ridge the gap between the Charlevoix and the Lotbiniere local series. The h emlock tree-ring series (Riviere-du-Moulin) (1524-1982) was built from livi ng trees sampled in the Lotbiniere region.