DOI: 10.1016/j.epsl.2018.04.030
Scopus记录号: 2-s2.0-85047100357
论文题名: Thermoluminescence of feldspar as a multi-thermochronometer to constrain the temporal variation of rock exhumation in the recent past
作者: Biswas R.H. ; Herman F. ; King G.E. ; Braun J.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2018
卷: 495 起始页码: 56
结束页码: 68
语种: 英语
英文关键词: multi-thermochronometer
; Namche Barwa
; rock exhumation
; TL of feldspar
; TL-thermochronology
Scopus关键词: Activation energy
; Cooling
; Curve fitting
; Feldspar
; Inverse problems
; Kinetic parameters
; Rocks
; Structural geology
; Temperature
; Glow curve deconvolution
; Inverse correlation
; multi-thermochronometer
; Multiple constraint
; Namche Barwa
; Temperature dependent
; Thermochronology
; Time-temperature history
; Thermoluminescence
; altitude
; deconvolution
; exhumation
; feldspar
; forward modeling
; luminescence dating
; reaction kinetics
; temporal variation
; thermochronology
; thermoluminescence
; China
; Himalayas
; Namjagbarwa Feng
; Xizang
英文摘要: Natural thermoluminescence (TL) in rocks reflects a dynamic equilibrium between radiation-induced TL growth and decay via thermal and athermal pathways. When rocks exhume through Earth's crust and cool from high to low temperature, this equilibrium level increases as the temperature dependent thermal decay decreases. This phenomenon can be exploited to extract thermal histories of rocks. The main advantage of TL is that a single TL glow curve has a wide range of thermal stabilities (lifetime 100 °C/Ma, whereas deeper traps, i.e. with higher activation energies, provide constraints on thermal histories for higher cooling rates (>300 °C/Ma). Finally, we show how the path of rock exhumation (i.e., depth vs. time) can be constrained using an inverse approach. The newly developed methodology is applied to rapidly cooled samples from the Namche Barwa massif, eastern Himalaya to suggest a trend in exhumation rate with time that follows an inverse correlation with global temperature and glaciers equilibrium altitude line (ELA). © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109827
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Institute of Earth Surface Dynamics, University of Lausanne, Switzerland; Institute of Geological Sciences, University of Bern, Switzerland; Helmholtz Centre Potsdam, German Research Center for Geosciences (GFZ), Potsdam, Germany; Institute of Earth and Environmental Sciences, University of Potsdam, Potsdam, Germany
Recommended Citation:
Biswas R.H.,Herman F.,King G.E.,et al. Thermoluminescence of feldspar as a multi-thermochronometer to constrain the temporal variation of rock exhumation in the recent past[J]. Earth and Planetary Science Letters,2018-01-01,495