Annealing behavior of alpha recoil tracks in phlogopite

	Annealing behavior of alpha recoil tracks in phlogopite
	Yuan, WM; Ketcham, RA; Gao, SK; Dong, JQ; Bao, ZK; Deng, J; Dong JQ(董金泉); Bao ZK(保增宽)
刊名	CHEMICAL GEOLOGY
	2009
卷号	266 期号:3-4 页码:343-349
关键词	Alpha recoil tracks Phlogopite Annealing
通讯作者	[Yuan, Wanming ; Deng, Jun] China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China ; [Ketcham, Richard A.] Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX 78712 USA ; [Gao, Shaokai] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China ; [Dong, Jinquan ; Bao, Zenkuan] Chinese Acad Sci, Inst High Energy Phys, Lab Nucl Anal Tech, Beijing 100039, Peoples R China
英文摘要	In this study we present and interpret a new experimental data set documenting thermal annealing of alpha recoil tracks (ARTs) in phlogopite. Through improvements in experimental technique, difficulties in obtaining useable data from material with an uneven distribution of U and Th were overcome. The resulting annealing pattern was well organized on an Arrhenius plot, allowing construction of a simple, 3-parameter annealing model of parallel contours of constant annealing with a linear progression. Our data and model indicate that phlogopite ARTs anneal at very low temperatures on geological time scales. At the million-year time scale, full annealing requires a temperature of only 33 degrees C, and we infer closure temperatures from 26-37 degrees C for cooling rates of 10-100 degrees C/m.y. Phlogopite ART analysis is thus likely to be primarily useful in relatively young (<1 Ma) terrains featuring either recent volcanism or recent, fast exhumation. In such situations, however, it may provide unique information on the timing of the final stages of unroofing. Comparison of our results with previous studies on ART and fission-track annealing in phlogopite and biotite indicates that these two types of radiation damage anneal at disparate time and temperature conditions in biotite-series micas. (C) 2009 Elsevier B.V. All rights reserved.
学科主题	Geochemistry & Geophysics
类目[WOS]	Geochemistry & Geophysics
研究领域[WOS]	Geochemistry & Geophysics
原文出处	SCI
语种	英语
WOS记录号	WOS:000270346400021
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/237070]
专题	高能物理研究所_多学科研究中心中国科学院高能物理研究所_人力资源处
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Yuan, WM,Ketcham, RA,Gao, SK,et al. Annealing behavior of alpha recoil tracks in phlogopite[J]. CHEMICAL GEOLOGY,2009,266(3-4):343-349.
APA	Yuan, WM.,Ketcham, RA.,Gao, SK.,Dong, JQ.,Bao, ZK.,...&保增宽.(2009).Annealing behavior of alpha recoil tracks in phlogopite.CHEMICAL GEOLOGY,266(3-4),343-349.
MLA	Yuan, WM,et al."Annealing behavior of alpha recoil tracks in phlogopite".CHEMICAL GEOLOGY 266.3-4(2009):343-349.