交叉定年技术及其在高分辨率年代学中的应用

高分辨率年代学标尺是高分辨率过去环境变化的研究基础。树轮年代学中的交叉定年技术是一种较为成熟的高分辨率年代学研究方法 ,其技术的核心是找到一个受共同的环境限制因子控制的可量化指标 (如树轮宽度 ) ,通过一定数量的样本进行交叉比较 ,来得到一个高分辨率的年代学序列。该技术中一些有益的概念和方法可以推广应用于其它高分辨率过去环境变化的研究中 ,文中通过对树轮年代学中的交叉定年技术原理的研究 ,剖析交叉定年技术的方法及其核心技术内涵 ,为该技术的扩展应用提供内在的科学依据 ,并对其应用前景进行探讨。

CROSS-DATING AND ITS APPLICATION IN HIGH RESOLVING CHRONOLOGICAL RESEARCH

The high resolving chronology is the base of high resolving paleoenvironment research. With the mature theory and technique, the cross|dating in dendrochronology is one of the most accurate method in high resolving dating research .The method can bring us a chronological sequence of annual even seasonal resolving power. Also this dating method has some very useful techniques that can be used in other high resolving dating research. Combining with the practice in arid area in China, the method of cross dating is introduced in detail in order to show the core technique in this paper. Some suggestions are given to provide the use of cross|dating thoughts and technique in other high resolving dating research. By knowing the method of cross dating in tree|ring research, it's also beneficial for other scholars who study in high|resolving paleoenvironment with other geological records to compare their conclusion with tree|ring research result.