tree ring

Example sentences from the Web for tree ring

• Exact dating by the methods of tree-ring chronology is yet to be accomplished.

  Mesa Verde National Park, Colorado |Anonymous

• Twenty-one of the roof beams in Spruce Tree House have been dated by tree-ring chronology.

  Mesa Verde National Park |Anonymous

• This stand was burned in 1858 (tree-ring date by David Smith) and some charred juniper snags still stood.

  Comparative Ecology of Pinyon Mice and Deer Mice in Mesa Verde National Park, Colorado |Charles L. Douglas

• The tree-ring dates indicate that the great pueblo at Aztec had undergone at least two major periods of construction.

  Aztec Ruins National Monument--New Mexico |John M. Corbett