构造热年代学——发展与思考

Some thoughts on tectono-thermochronology

构造热年代学是一门集同位素年代学、构造地质学、岩石矿物学、计算机模拟技术等为一体的综合性学科。它是在同位素年代学研究的基础上 ,结合矿物的封闭温度理论、构造事件、岩浆热事件等的研究而发展起来的。U Pb、40 Ar/ 3 9Ar、裂变径迹及 (U Th) /He等测年手段是该学科的重要支柱手段。这一学科的发展已经、并且将对传统构造地质学、年代学的应用与解释起到巨大的推动作用。而在此基础上的微区微量年代测定与应用将是对地质学特别是构造事件乃至构造运动的演化序列精细测定的一次革命。

The tectono-thermochronology is a comprehensive discipline of geoscience founded on the bases of isotopic chronology, tectonics, petrology, mineralogy, computer modeling, etc. It is developed based on the improvement of the isotopic chronology, combined with the perfection of the closure-temperature theory, and with the studies of tectonic events and magmatic-thermal events. The U-Pb,^(40)Ar/^(39)Ar, fission-track and (U-Th)/He age dating are the main thermochronological methods. The development of the tectono-thermochronology has made great impacts on the traditional tectonics by use of the chronological and thermochronological data and their interpretations. The micro-area and micro-quantity dating and its application will be a revolution in the precise determination of the evolutionary series of the tectonic events and tectonic movements.