Fig. 1From: Coloring mechanisms of ancient buried wood: Japanese cedar trees excavated from the foothills of Mt. ChokaiPhotographs of the cross-section of three parts in two Japanese cedar umoregi wood samples for (a-1) UW1-1, (a-2) UW1-2, and (b) UW2. UW1-1: heartwood, UW1-2: sapwood, UW2: heartwoodBack to article page