Szczegóły publikacji
Opis bibliograficzny
Micas from mariupolite of the Oktiabrski massif (SE Ukraine): an insight into the host rock evolution – geochemical data supported by Raman microspectroscopy / Magdalena DUMAŃSKA-SŁOWIK, Aleksandra Wesełucha-Birczyńska, Adam PIECZKA // Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy ; ISSN 1386-1425. — 2015 — vol. 137, s. 817–826. — Bibliogr. s. 825–826, Abstr.
Autorzy (3)
- AGHDumańska-Słowik Magdalena
- Wesełucha-Birczyńska Aleksandra
- AGHPieczka Adam
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 91803 |
|---|---|
| Data dodania do BaDAP | 2015-10-08 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.saa.2014.08.127 |
| Rok publikacji | 2015 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Spectrochimica Acta, Part A, Molecular and Biomolecular Spectroscopy |
Abstract
Muscovite and two dark mica varieties (the coarse-crystalline, pegmatitic, and fine-crystalline with signs of early weathering) representing members of the biotite series, originating from mariupolite of the Oktiabrski massif, (Ukraine), were investigated along with their solid inclusions using electron microprobe and Raman micro-spectroscopy to discuss their genesis and relationship to the parental magma. The coarse-crystalline, pegmatitic biotite, (K1.90Rb0.02Na0.01)(Fe3.562+Mg1.34Ti0.36Fe0.343+Mn0.03)[(Si5.73Al2.10-Fe-0.17(3+))O-20](OH3.24F0.76) Fan) represents the primary, magmatic annite that crystallized from an alkaline, Fe-rich and Mg-depleted host magma, whereas the fine-crystalline biotite, partly altered to vermiculite, (K1.75Rb0.03Na0.03)(Fer(3.23)(3+)Fe(1.16)(2+)Mg(0.26)Mn(0.04)Ti(0.10))[(Si-5.16 Al-2.84)O-20](OH)(4.00), devoid of F, represents a re-equilibrated or secondary, post-magmatic Fe3+-bearing mica crystallized from alkaline to the subalkaline host magma. Muscovite, (K1.96Na0.06)(Al3.97Fe0.062+)(Si5.99Al2.01)O-20](OH)(4), with low Na/(Na + K) ratio, low Fe and devoid of Ti and also F, forms only tiny, subhedral flakes formed in the post-magmatic, hydrothermal stage. The primary, unaltered biotite contains numerous solid inclusions of primary origin (albite, aegirine, zircon, K-feldspar, nepheline, pyrochlore, magnetite) and secondary origin (natrolite, hematite, Ti-Mn oxides/hydroxides); most of them are accompanied by a carbonaceous substance, all confirmed by scanning electron microscopy and Raman microspectroscopy. (C) 2014 Elsevier BM. All rights reserved.