Detail publikace

Can lithium contents in mica be correctly calculated? Tischendorf́s proposal (Mineralogical Magazine 61/1997) 25 years after

Breiter K., Vašinová Galiová M., Korbelová Z., Hložková M.

Originální název

Can lithium contents in mica be correctly calculated? Tischendorf́s proposal (Mineralogical Magazine 61/1997) 25 years after

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Micas are the most common hosts of lithium in granitoid igneous rocks. Unfortunately, their Li contents cannot be determined by electron-probe microanalysis (EPMA) which is the most common method of mineral analysis. In an effort to avoid the use of other, technically more complex and expensive methods, several empirical schemes for the estimation of Li-contents from EPMA data have been developed. The methods proposed by Tischendorf (Mineralogical Magazine, 1997) have found the widest application. After 25 years of common usage, we have evaluated these methods by direct Li determination using laser ablation-inductively coupled plasma-mass spectrometry (LA–ICP–MS). Approximately 3000 spot analyses of Li in micas from eight areas worldwide obtained by LA–ICP–MS were compared with the values yielded by the methods of Tischendorf. We conclude that none of the lithium estimation methods can compensate fully for a real local analysis by LA–ICP–MS or secondary-ion mass spectrometry (SIMS). Generally, SiO2-based estimation for trioctahedral micas provides a better match to the analysed values than F-based estimation for dioctahedral micas. The Rb-based estimation for dioctahedral micas does not provide acceptable results. The usage of averaged Si- and F-based estimations can be accepted in common petrological studies for a general characterisation of mica species. Large errors of individual spot estimations preclude their usage in detailed mineralogical studies.

Klíčová slova

lithium mica; lithium analyses; lithium estimation

Autoři

Breiter K., Vašinová Galiová M., Korbelová Z., Hložková M.

Vydáno

18. 9. 2023

ISSN

1471-8022

Periodikum

MINERALOGICAL MAGAZINE

Ročník

2023

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

9

Strany počet

9

URL

https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/can-lithium-contents-in-mica-be-correctly-calculated-tischendorfs-proposal-mineralogical-magazine-611997-25-years-after/B04D143AF804191B9A73DD2BFEF8A3E6

BibTex

@article{BUT187662,
  author="Michaela {Vašinová Galiová}",
  title="Can lithium contents in mica be correctly calculated? Tischendorf́s proposal (Mineralogical Magazine 61/1997) 25 years after",
  journal="MINERALOGICAL MAGAZINE",
  year="2023",
  volume="2023",
  number="1",
  pages="1--9",
  doi="10.1180/mgm.2023.72",
  issn="1471-8022",
  url="https://www.cambridge.org/core/journals/mineralogical-magazine/article/abs/can-lithium-contents-in-mica-be-correctly-calculated-tischendorfs-proposal-mineralogical-magazine-611997-25-years-after/B04D143AF804191B9A73DD2BFEF8A3E6"
}