Apatite (U-Th)/He thermochronometry: methods and applications to problems in tectonic and surface processes

被引:468
作者
Ehlers, TA [1 ]
Farley, KA [1 ]
机构
[1] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA
基金
美国国家科学基金会;
关键词
apatite; (U-Th)/He; thermochronometry; surface processes; tectonics; numerical modeling;
D O I
10.1016/S0012-821X(02)01069-5
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
In the last decade apatite (U-Th)/He thermochronometry has emerged as an important tool for quantifying the cooling history of rocks as they pass through the upper 1-3 km-of the crust. The low closure temperature of this technique (similar to70degreesC) has gained the interest of geomorphologists and tectonocists because it is applicable to interdisciplinary studies in landform evolution, structural geology, and geodynamics. We discuss current analytical techniques, the temperature calibration of the method, and sample quality considerations. Results from 1D, 2D and 3D thermo-kinematic numerical models are used to illustrate applications of He thermochronometry to problems in tectonics and landform evolution. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:1 / 14
页数:14
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