摘要：Apatite fission-track (AFT) analysis, a widely used low-temperature thermochronology method, can provide details of the hydrocarbon generation history of source rocks for use in hydrocarbon exploration. The AFT method is based on the annealing behavior of fission tracks generated by U-238 fission in apatite particles during geological history. Due to the cumbersome experimental steps and high expense, it is imperative to find an efficient and inexpensive technique to determinate the annealing degree of AFT. In this study, on the basis of the ellipsoid configuration of tracks, the track volume fraction model (TVFM) is established and the fission-track volume index is proposed. Furthermore, terahertz time domain spectroscopy (THz-TDS) is used for the first time to identify the variation of the AFT annealing degree of Durango apatite particles heated at 20, 275, 300, 325, 450, and 500? for 10h. The THz absorbance of the sample increases with the degree of annealing. In addition, the THz absorption index is exponentially related to annealing temperature and can be used to characterize the fission-track volume index. Terahertz time domain spectroscopy can be an ancillary technique for AFT thermochronological research. More work is urgently needed to extrapolate experimental data to geological conditions.

关键字：Apatite fission track terahertz time domain spectroscopy THz-TDS annealing degree track volume fraction model fission-track volume index terahertz absorption index

ISSN号：0003-7028

卷、期、页：卷: 72 期: 6 页: 870-878

发表日期：2018-06-01

影响因子：1.529000

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：Applied Spectroscopy

参与作者：吴世祥,张昕

通讯作者：常健,刘帅,刘念,刘帅

第一作者：邱楠生,常健

论文类型：期刊论文

论文概要：常健,吴世祥,邱楠生,常健,刘帅,张昕,刘念,刘帅，Quantitative Identification of the Annealing Degree of Apatite Fission Tracks Using Terahertz Time Domain Spectroscopy (THz-TDS)，Applied Spectroscopy，2018，卷: 72 期: 6 页: 870-878

论文题目：Quantitative Identification of the Annealing Degree of Apatite Fission Tracks Using Terahertz Time Domain Spectroscopy (THz-TDS)