近年來國際上常用陸域宇生核素定年法 (terrestrial cosmogenic nuclidedating, TCND) 來對第四紀冰川磨光面與漂礫的定年。由於定年對象與定年技術本身的不確定性，研究者常需要大量採集樣本來提高年代的可靠性，使得投入經費提高。因此，本研究的目的在於建立相對定年法 (relative dating methods) 與絕對定年資料的校正曲線，能協助研究者初步判斷冰川地貌的可能年代範圍，然後決定哪些樣本比較適合進行TCND 定年工作。本研究選擇南湖大山地區為研究區，利用五筆TCND 定年資料嘗試建立史密特錘－曝曬年代的校正曲線，並利用史密特錘回彈值標準化轉換方法，改善現有的測量工作。資料結果顯示，本研究區內漂礫的史密特錘回彈值與TCND 年代資料之間有十分良好的線性回歸關係 (R2 > 0.9)，回彈值中位數以及平均數與TCND 年代資料的線性式分別為 y =-0.3974x + 27.328 (中位數，R² = 0.9515)，y = -0.5239x + 32.837 (平均數，R² =0.9218)，可用來推估其他漂礫的年代。

Terrestrial cosmogenic nuclide dating (TCND) is widely used to determine the ages of Quaternary erratic boulders or glacier-polished surface. Researchers tend to process a substantial amount of samples in order to overcome the age uncertainty induced by sample itself and the dating method, which makes the research approach economically impractical. Therefore, this study aims to use relative dating data and absolute dates to build a calibrated curve to help geochronologists to determine the time spans that rock surface samples belong, and then choose proper samples for TCND processes. We used five TCND dates and 196 Schmidt hammer rebound values from Quaternary erratic boulders in Nanhutashan of northern Taiwan to build a Schmidt-hammer exposure-age calibrated curve. We also introduced a method for normalization of Schmidt hammer rebound values (Basu and Aydin 2004) to modify Schmidt hammer measurement procedure. Results showed that there was a well linear relationship between the rebound values and TCND dates By using the calibrated curve, we also obtained reasonable dates of unknown age erratic boulders in Nanhutashan.