scholarly journals High-Temperature Inter-Mineral Potassium Isotope Fractionation: Implications for K–Ca–Ar Chronology

2021 ◽  
Author(s):  
W. Wilson Kuhnel ◽  
Stein B. Jacobsen ◽  
Yonghui Li ◽  
Yaray Ku ◽  
Michail I. Petaev ◽  
...  
Keyword(s):  
High Temperature ◽  
Isotope Fractionation

Potassium isotope fractionation during high-temperature evaporation determined from the Trinity nuclear test

2019 ◽  
Vol 522 ◽  
pp. 84-92 ◽  
Author(s):  
Heng Chen ◽  
Alex P. Meshik ◽  
Olga V. Pravdivtseva ◽  
James M.D. Day ◽  
Kun Wang
Keyword(s):  
High Temperature ◽  
Isotope Fractionation ◽  
Nuclear Test ◽  
The Trinity

High-Temperature Processes: Is it Time for Lithium Isotopes?

Elements ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 247-252
Author(s):  
Horst R. Marschall ◽  
Ming Tang
Keyword(s):  
High Temperature ◽  
Isotope Fractionation ◽  
Isotope Geochemistry ◽  
Kinetic Isotope ◽  
High Temperature Processes ◽  
Li Isotope ◽  
Isotope Studies ◽  
Short Time ◽  
Diffusion Profiles ◽  
Geologic Processes

The field of high-temperature Li isotope geochemistry has been rattled by major paradigm changes. The idea that Li isotopes could be used to trace the sources of fluids, rocks, and magmas had to be largely abandoned, because Li diffusion causes its isotopes to fractionate at metamorphic and magmatic temperatures. However, diffusive fractionation of Li isotopes can be used to determine timescales of geologic processes using arrested diffusion profiles. High diffusivity and strong kinetic isotope fractionation favors Li isotopes as a tool to constrain the durations of fast processes in the crust and mantle, where other geochronometers fall short. Time may be the parameter that high-temperature Li isotope studies will be able to shed much light on.

scholarly journals Equilibrium inter-mineral titanium isotope fractionation: Implication for high-temperature titanium isotope geochemistry

2020 ◽  
Vol 269 ◽  
pp. 540-553 ◽  
Author(s):  
Wenzhong Wang ◽  
Shichun Huang ◽  
Fang Huang ◽  
Xinmiao Zhao ◽  
Zhongqing Wu
Keyword(s):  
High Temperature ◽  
Isotope Fractionation ◽  
Isotope Geochemistry

High-temperature chromium isotope fractionation and its implications: Constraints from the Kızıldağ ophiolite, SE Turkey

Lithos ◽  
2019 ◽  
Vol 342-343 ◽  
pp. 361-369 ◽  
Author(s):  
Chen Chen ◽  
Ben-Xun Su ◽  
Yan Xiao ◽  
Patrick Asamoah Sakyi ◽  
Xiao-Qing He ◽  
...  
Keyword(s):  
High Temperature ◽  
Isotope Fractionation ◽  
Se Turkey
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