Dendrochronology:
Dendrochronology (from δένδρον, "dendron", "tree limb"; χρόνος, "khronos", "time"; and -λογία, "-logia") or tree-ring dating, is the scientific method of dating based on the analysis of patterns of tree rings, also known as growth rings.
en.wikipedia.org
树轮年代学:
树轮年代学，又称“树木年轮学”、“树轮学”（Dendrochronology，源自δένδρον，树木；χρόνος，时间；-λογία，学科）是一种通过对树木年轮进行科学分析而测定年代的方法。
zh.wikipedia.org
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Dendrochronology树轮年代学