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Publication details

Document type
Journal articles

Document subtype
Full paper

Title
Lithium-, Phosphorus-, and Fluorine-Rich Intrusions and the Phosphate Sequence at Segura (Portugal): A Comparison with Other Hyper-Differentiated Magmas

Participants in the publication
Michel Cathelineau (Author)
Marie-Christine Boiron (Author)
Andreï Lecomte (Author)
Ivo Martins (Author)
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA
 Ícaro Dias da Silva (Author)
Dep. Geologia
 IDL
 Antonio Mateus (Author)
Dep. Geologia
 IDL
Summary
Near the Segura pluton, hyper-differentiated magmas enriched in F, P, and Li migrated through shallowly dipping fractures, which were sub-perpendicular to the schistosity of the host Neoproterozoic to Lower Cambrian metasedimentary series, to form two swarms of low-plunging aplite–pegmatite dykes. The high enrichment factors for the fluxing elements (F, P, and Li) compared with peraluminous granites are of the order of 1.5 to 5 and are a consequence of the extraction of low-viscosity magma from the crystallising melt. With magmatic differentiation, increased P and Li activity yielded the crystallisation of the primary amblygonite–montebrasite series and Fe-Mn phosphates. The high activity of sodium during the formation of the albite–topaz assemblage in pegmatites led to the replacement of the primary phosphates by lacroixite. The influx of external, post-magmatic, and Ca-Sr-rich hydrothermal fluids replaced the initial Li-Na phosphates with phosphates of the goyazite–crandallite series and was followed by apatite formation. Dyke emplacement in metasediments took place nearby the main injection site of the muscovite granite, which plausibly occurred during a late major compression event.

Date of Submisson/Request
2024-01-25
Date of Acceptance
2024-03-04
Date of Publication
2024-03-08

Institution
UNIVERSIDADE DE LISBOA

Where published
Minerals

Publication Identifiers
ISSN - 2075-163X

Publisher
MDPI AG

Volume
14
Number
3

Starting page
287

Document Identifiers
DOI - https://doi.org/10.3390/min14030287
URL - http://dx.doi.org/10.3390/min14030287

Rankings
SCIMAGO Q2 (2021) - 522 - Geology
SCIMAGO Q2 (2021) - 522 - Geotechnical Engineering and Engineering Geology
SCOPUS Q2 (2021) - 3.7 - Geology
SCOPUS Q2 (2021) - 3.7 - Geotechnical Engineering and Engineering Geology
Web Of Science Q2 (2020) - 2.644 - GEOCHEMISTRY & GEOPHYSICS - SCIE
Web Of Science Q2 (2020) - 2.644 - MINERALOGY - SCIE
Web Of Science Q2 (2020) - 2.644 - MINING & MINERAL PROCESSING - SCIE

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APA
Michel Cathelineau, Marie-Christine Boiron, Andreï Lecomte, Ivo Martins, Ícaro Dias da Silva, Antonio Mateus, (2024). Lithium-, Phosphorus-, and Fluorine-Rich Intrusions and the Phosphate Sequence at Segura (Portugal): A Comparison with Other Hyper-Differentiated Magmas. Minerals, 14, ISSN 2075-163X. eISSN . http://dx.doi.org/10.3390/min14030287

IEEE
Michel Cathelineau, Marie-Christine Boiron, Andreï Lecomte, Ivo Martins, Ícaro Dias da Silva, Antonio Mateus, "Lithium-, Phosphorus-, and Fluorine-Rich Intrusions and the Phosphate Sequence at Segura (Portugal): A Comparison with Other Hyper-Differentiated Magmas" in Minerals, vol. 14, 2024. 10.3390/min14030287

BIBTEX
@article{60693, author = {Michel Cathelineau and Marie-Christine Boiron and Andreï Lecomte and Ivo Martins and Ícaro Dias da Silva and Antonio Mateus}, title = {Lithium-, Phosphorus-, and Fluorine-Rich Intrusions and the Phosphate Sequence at Segura (Portugal): A Comparison with Other Hyper-Differentiated Magmas}, journal = {Minerals}, year = 2024, volume = 14 }