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磷灰石裂变径迹分析（ＡＦＴＡ）近年来广泛地被用来研究含油气盆地古热史与古构造史及指导油气勘探，这主要是根据磷灰石裂变径迹退火是时间和温度的函数，而烃的生成与热成熟同时也是时间和温度的函数，而且磷灰石裂变径迹退火温度范围与石油的生成门限相吻合。退火除受温度、时间影响外，还受化学成分、取向因素控制。ＡＦＴＡ包括裂变径迹年龄分析和裂变径迹长度分析，通过前者可获得退火方面信息，通过后者可获得最大古地温及其随时间的变化及热史类型等方面的信息，二者的有机结合可获得热构造史的完整信息。长度分析有封闭径迹和投影径迹长度分析两种。
Apatite fission track analysis (AFTA) has been widely used in recent years to study the paleo-thermal history and paleotectonic history of petroliferous basins and to guide oil and gas exploration. This is mainly based on apatite fission track annealing as a function of time and temperature , While hydrocarbon generation and thermal maturation are also functions of time and temperature, and apatite fission track anneal temperature range is consistent with the oil production threshold. In addition to the annealing temperature, time, but also by the chemical composition, orientation control. AFTA includes fission track age analysis and fission track length analysis, through which the information of annealing can be obtained, and the latter can get the information of the maximum paleo-geothermal temperature and its change with time and the type of thermal history. The organic combination of the two Complete history of thermal history is available. Length analysis of closed track and projection track length of two.