Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts

to related objects

Abstract 6 Li and 7 Li) in flux-rich (1.8 % Li2 O, 2.6 % B2 O3, 2.3 % P2 O5 and 3 % F) pegmatitic melts in order to contribute to the understanding of Li enrichment in such systems. Two glasses were synthesized with a model pegmatitic composition, one of which is highly enriched in Li (> ∘ C at 100 MPa with Ar as the pressure medium. We observed rapidly formed diffusion profiles, driven by an interdiffusive exchange of the monovalent alkalis Li and Na, while the other elements are immobile on the timescale of experiments (1–30 min). From these experiments, activation energies for Li–Na interdiffusion were determined as 99 ± - 1 D 0 = - ± D 0 2  s- 1 2 O (Holycross et al., 2018; Spallanzani et al., 2022). Using melt viscosity as a proxy for the polymerization of the melt shows that water has a stronger potential to depolymerize a melt compared to other fluxing elements. Faster diffusion of 6 Li compared to 7 Li leads to a strong Li isotope fractionation along the diffusion profile, resulting in δ 7 - β ± β β value of ca. 0.2 seems to be universally applicable to diffusive Li isotope fractionation in aluminosilicate melts.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts ; volume:35 ; number:6 ; year:2023 ; pages:1009-1026 ; extent:18
European journal of mineralogy ; 35, Heft 6 (2023), 1009-1026 (gesamt 18)

Creator: Singer, Christian R.
Behrens, Harald
Horn, Ingo
Oeser, Martin
Dohmen, Ralf
Weyer, Stefan

DOI: 10.5194/ejm-35-1009-2023

URN: urn:nbn:de:101:1-2023112303281128622653

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 15.08.2025, 7:37 AM CEST

Data provider

This object is provided by:
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.

Show original at data provider

Associated

Singer, Christian R.
Behrens, Harald
Horn, Ingo
Oeser, Martin
Dohmen, Ralf
Weyer, Stefan

Other Objects (12)

$Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts$

Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts

$Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts$

Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts

$Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts$

Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts

$The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts$

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

$The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts$

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

Relation between self diffusion and interdiffusion in Al-Cu melts

$Boron isotope fractionation in bell pepper$

Boron isotope fractionation in bell pepper

$Iron isotope fractionation in carbonatite melt systems$

Iron isotope fractionation in carbonatite melt systems

$Pathway dependent isotope fractionation in triazine degradation$

Hochschulschrift

Pathway dependent isotope fractionation in triazine degradation

Interdiffusion revisited

$Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems$

Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems

$Principles of stable isotope fractionation during anaerobic respiration$

Hochschulschrift

Principles of stable isotope fractionation during anaerobic respiration

$Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts$

Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts

$Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts$

Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts

$Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts$

Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts

$The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts$

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

$The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts$

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

Relation between self diffusion and interdiffusion in Al-Cu melts

$Boron isotope fractionation in bell pepper$

Boron isotope fractionation in bell pepper

$Iron isotope fractionation in carbonatite melt systems$

Iron isotope fractionation in carbonatite melt systems

$Pathway dependent isotope fractionation in triazine degradation$

Hochschulschrift

Pathway dependent isotope fractionation in triazine degradation

Interdiffusion revisited

$Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems$

Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems

$Principles of stable isotope fractionation during anaerobic respiration$

Hochschulschrift

Principles of stable isotope fractionation during anaerobic respiration

$Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts$

Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts

$Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts$

Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts

$Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts$

Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts

$The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts$

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

$The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts$

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

Relation between self diffusion and interdiffusion in Al-Cu melts

$Boron isotope fractionation in bell pepper$

Boron isotope fractionation in bell pepper

$Iron isotope fractionation in carbonatite melt systems$

Iron isotope fractionation in carbonatite melt systems

$Pathway dependent isotope fractionation in triazine degradation$

Hochschulschrift

Pathway dependent isotope fractionation in triazine degradation

Interdiffusion revisited

$Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems$

Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems

$Principles of stable isotope fractionation during anaerobic respiration$

Hochschulschrift

Principles of stable isotope fractionation during anaerobic respiration

Cultural heritage institutions wishing to register will find more information here.

Fields marked * need to be filled in.

Username*

Please enter your username

Email*

Please enter your email address

Please do not fill this field

First name

Last name

Password*

Please enter your password

Confirm password*

Please enter the same password

I have read the terms of use and the privacy policy for the collection of personal data and accept them. *

This field is required.

I would like to subscribe to the newsletter of the Deutsche Digitale Bibliothek. See newsletter subscription info.

Account created

Your "My DDB" account has been successfully created. Before you can log in to your account, you must click the confirmation link in the message we just sent to the email address you provided.

Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts

Object Details

References and Relationships

Contributors, Places and Time

Further information

Data provider

Associated

Other Objects (12)

Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts

Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts

Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

Relation between self diffusion and interdiffusion in Al-Cu melts

Boron isotope fractionation in bell pepper

Iron isotope fractionation in carbonatite melt systems

Pathway dependent isotope fractionation in triazine degradation

Interdiffusion revisited

Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems

Principles of stable isotope fractionation during anaerobic respiration

Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts

Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts

Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

Relation between self diffusion and interdiffusion in Al-Cu melts

Boron isotope fractionation in bell pepper

Iron isotope fractionation in carbonatite melt systems

Pathway dependent isotope fractionation in triazine degradation

Interdiffusion revisited

Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems

Principles of stable isotope fractionation during anaerobic respiration

Li–Na interdiffusion and diffusion-driven lithium isotope fractionation in pegmatitic melts

Lithium and boron diffusivity and isotopic fractionation in hydrated rhyolitic melts

Lithium and boron difusivity and isotopic fractionation in hydrated rhyolitic melts

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

The redox dependence of titanium isotope fractionation in synthetic Ti-rich lunar melts

Relation between self diffusion and interdiffusion in Al-Cu melts

Boron isotope fractionation in bell pepper

Iron isotope fractionation in carbonatite melt systems

Pathway dependent isotope fractionation in triazine degradation

Interdiffusion revisited

Si stable isotope fractionation during adsorption and the competition between kinetic and equilibrium isotope fractionation: implications for weathering systems

Principles of stable isotope fractionation during anaerobic respiration

Related objects

Reset password