Evolving temperature histories from apatite fission-track data

被引:344
作者
Gallagher, K
机构
[1] Department of Geology, Imperial College of Science, Technology and Medicine, London, SW7 2BP, Prince Consort Road
关键词
D O I
10.1016/0012-821X(95)00197-K
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
A procedure for quantifying thermal histories from apatite fission-track data is presented. Given an appropriate annealing algorithm, or forward model, the problem is to determine a best-fit thermal history and quantify the resolution of this solution. Also, a priori geological information should be readily incorporated. Due to the non-linear nature of the problem, conventional inversion methods such as iterative least squares are inappropriate. The procedure described here relies on an initial stochastic search of a broad range of potential thermal histories using a genetic algorithm (GA). These techniques are extremely efficient in defining the regions of time-temperature space where good data-fitting solutions occur. However, the best model found with a genetic algorithm is generally non-optimal. Therefore, a multi-dimensional direct search method is used to update the best GA solution. A variety of standard statistical methods are considered to define confidence regions around this refined best thermal history.
引用
收藏
页码:421 / 435
页数:15
相关论文
共 38 条
[1]  
BURTNER RL, 1994, AAPG BULL, V78, P1613
[2]  
CARLSON WD, 1990, AM MINERAL, V75, P1120
[3]   INVERSION OF APATITE FISSION-TRACK DATA FOR THERMAL HISTORY INFORMATION [J].
CORRIGAN, J .
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1991, 96 (B6) :10347-10360
[4]  
CORRIGAN J, 1993, CHEM GEOL ISOT GEOSC, V1004, P227
[5]  
Cox DR, 1984, ANAL SURVIVAL DATA, pviii
[6]   THERMAL SIGNIFICANCE OF FISSION-TRACK LENGTH DISTRIBUTIONS [J].
CROWLEY, KD .
NUCLEAR TRACKS AND RADIATION MEASUREMENTS, 1985, 10 (03) :311-322
[7]   EXPERIMENTAL STUDIES OF ANNEALING OF ETCHED FISSION TRACKS IN FLUORAPATITE [J].
CROWLEY, KD ;
CAMERON, M ;
SCHAEFER, RL .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1991, 55 (05) :1449-1465
[8]   THERMAL ANNEALING OF FISSION TRACKS IN APATITE .3. VARIABLE TEMPERATURE BEHAVIOR [J].
DUDDY, IR ;
GREEN, PF ;
LASLETT, GM .
CHEMICAL GEOLOGY, 1988, 73 (01) :25-38
[9]   SOME CALCULATIONS RELEVANT TO THERMAL ANNEALING OF FISSION TRACKS IN APATITE [J].
GALBRAITH, RF ;
LASLETT, GM .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1988, 419 (1857) :305-321
[10]   APATITE FISSION-TRACK ANALYSIS - GEOLOGICAL THERMAL HISTORY ANALYSIS BASED ON A 3-DIMENSIONAL RANDOM PROCESS OF LINEAR RADIATION-DAMAGE [J].
GALBRAITH, RF ;
LASLETT, GM ;
GREEN, PF ;
DUDDY, IR .
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1990, 332 (1627) :419-438