Language:

Trace element diffusion and incorporation in quartz during heating experiments

Contributions to mineralogy and petrology, 2017-04, Vol.172 (4), p.1-20, Article 23 [Peer Reviewed Journal]

Springer-Verlag Berlin Heidelberg 2017 ;Contributions to Mineralogy and Petrology is a copyright of Springer, (2017). All Rights Reserved. ;ISSN: 0010-7999 ;EISSN: 1432-0967 ;DOI: 10.1007/s00410-017-1350-4

Full text available

Citations Cited by

Actions
1. Add to My Research
2. Remove from My Research
3. E-mail
4. Print
5. Permalink
6. Citation
7. EasyBib
8. EndNote
9. RefWorks
10. Delicious
11. Export RIS
12. Export BibTeX

Title:
Trace element diffusion and incorporation in quartz during heating experiments
Author: Rottier, B. ; Rezeau, H. ; Casanova, V. ; Kouzmanov, K. ; Moritz, R. ; Schlöglova, K. ; Wälle, M. ; Fontboté, L.
Subjects: Ablation ; Aluminum ; Chemical composition ; Copper ; Crystals ; Diffusion ; Dye dispersion ; Earth and Environmental Science ; Earth Sciences ; Electron probes ; Enrichment ; Experiments ; Fluid inclusions ; Geology ; Heating ; High temperature fluids ; Hydrothermal activity ; Inductively coupled plasma mass spectrometry ; Laser ablation ; Lasers ; Mass spectrometry ; Mass spectroscopy ; Mineral Resources ; Mineralogy ; Organic chemistry ; Original Paper ; Parameter modification ; Petrology ; Quartz ; Quartz crystals ; Silver ; Sulfides ; Surface layers ; Trace elements
Is Part Of: Contributions to mineralogy and petrology, 2017-04, Vol.172 (4), p.1-20, Article 23
Description: Heating of quartz crystals in order to study melt and high-temperature fluid inclusions is a common practice to constrain major physical and chemical parameters of magmatic and hydrothermal processes. Diffusion and modification of trace element content in quartz and its hosted melt inclusions have been investigated through step-heating experiments of both matrix-free quartz crystals and quartz crystals associated with sulfides and other minerals using a Linkam TS1500 stage. Magmatic and hydrothermal quartz were successively analyzed after each heating step for Cu, Al, and Ti using electron probe micro-analyzer. After the last heating step, quartz crystals and their hosted melt inclusions were analyzed by laser ablation inductively coupled plasma mass spectrometry and compared to unheated samples. Heated samples reveal modification of Cu, Li, Na, and B contents in quartz and modification of Cu, Li, Ag, and K concentrations in melt inclusions. Our results show that different mechanisms of Cu, Li, and Na incorporation occur in magmatic and hydrothermal quartz. Heated magmatic quartz records only small, up to a few ppm, enrichment in Cu and Na, mostly substituting for Li. By contrast, heated hydrothermal quartz shows enrichment up to several hundreds of ppm in Cu, Li, and Na, which substitute for originally present H. This study reveals that the composition of both quartz and its hosted melt inclusions may be significantly modified upon heating experiments, leading to erroneous quantification of elemental concentrations. In addition, each quartz crystal also becomes significantly enriched in Cu in the sub-surface layer during heating. We propose that sub-surface Cu enrichment is a direct indication of Cu diffusion in quartz externally sourced from both the surrounding sulfides as well as the copper pins belonging to the heating device. Our study shows that the chemical compositions of both heated quartz and its hosted inclusions must be interpreted with great caution to avoid misleading geological interpretations.
Publisher: Berlin/Heidelberg: Springer Berlin Heidelberg
Language: English
Identifier: ISSN: 0010-7999
EISSN: 1432-0967
DOI: 10.1007/s00410-017-1350-4
Source: ProQuest Central

Back to results list


INSPIRE LIBRARY - TON DUC THANG UNIVERSITY	(84-028) 37 755 057	Feedback
19 Nguyen Huu Tho St. Dist.7, HCM	thuvien@tdtu.edu.vn	Feedback

Trace element diffusion and incorporation in quartz during heating experiments

Springer-Verlag Berlin Heidelberg 2017 ;Contributions to Mineralogy and Petrology is a copyright of Springer, (2017). All Rights Reserved. ;ISSN: 0010-7999 ;EISSN: 1432-0967 ;DOI: 10.1007/s00410-017-1350-4

Searching Remote Databases, Please Wait