Dendrochronology dating definition
Dating of landslides is thus "based on changes in the amount and eccentricity of tree growth" (Alestalo, 1971: 72).Dendrogeomorphology is a reliable means of determining the age of recent slope failures, where a single event such as the rotational failure of a slump block dominates the signal.
Titled trees produce reaction wood and grow asymmetrically, so that the trunk curves upward to resume a vertical growth.
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Tree-ring series can be classified as either complacent (uniform ring widths where moisture and heat are sufficient throughout the growing season) or sensitive (pronounced year to year variation in ring width, where conditions are frequently near the limits of the trees tolerance, e.g. The search for proxy climatic data was the original application of tree rings. In 1901, he noticed ring-width variations on a cut log and reasoned that these were controlled by the tree's environment (Fritts, 1976).
Douglass (1920) illustrated the relationship between climate and ring width by plotting both against time, and introduced the technique of cross dating by correlating ring-width signatures (sequences of wide and narrow rings) among trees distributed over large areas.