Hydrothermal-to-metasomatic overprint of the neovolcanic rocks evidenced by composite apatite crystals: a case study from the Maglovec Hill, Slanske vrchy Mountains, Slovakia

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F18%3A00499454" target="_blank" >RIV/67985831:_____/18:00499454 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/18:00499454 RIV/00216224:14310/18:00105914 RIV/00216208:11310/18:10385354

Result on the web

<a href="http://dx.doi.org/10.1515/geoca-2018-0025" target="_blank" >http://dx.doi.org/10.1515/geoca-2018-0025</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1515/geoca-2018-0025" target="_blank" >10.1515/geoca-2018-0025</a>

Result language

angličtina

Original language name

Hydrothermal-to-metasomatic overprint of the neovolcanic rocks evidenced by composite apatite crystals: a case study from the Maglovec Hill, Slanske vrchy Mountains, Slovakia

Original language description

The apatite assemblage from Maglovec hill (Slanske vrchy Mountains near the city of Presov) from fissures of hydrothermally altered neovolcanic rocks (andesites and related lithologies) was studied. The assemblage consists of two different morphological apatite types (apatite in cores of prismatic crystals and fibrous apatite mantling these cores). The assemblage was investigated by a multi-analytical approach to reveal its unique chemical composition and structure. Both types of apatite display zoning visible in back-scattered electron (BSE) images. Core apatite is relatively homogenous with porous rims appearing darker in the BSE images at the contact with fibrous apatite, and occasionally with darker regions along fractures. These parts are depleted in trace elements, mostly in LREE. Fibrous apatites display concentric and/or patchy zoning. Dark regions in fibrous apatite occasionally display a porous structure. In part of fibrous crystals, substitution of (CO3) 2- for phosphorus is confirmed by Raman spectroscopy by the presence of a band at similar to 1071 cm-1. This method also confirmed the presence of OH in different populations in the structure of all apatite types. The three most important observed peaks are caused by vibrations of hydroxyls influenced by different adjacent anions: hydroxyl (band at similar to 3575 cm -1), fluorine (band at similar to 3535-3540 cm -1), chlorine (band at similar to 3494 cm-1). In REE-depleted parts of both apatite types, fine inclusions of monazite and rarely Th-rich silicate are observed. The acquired data suggest a hydrothermal origin of this assemblage and indicate a formation sequence of distinct apatite types. Moreover, minerals from the epidote group were identified, which have not been described from this locality before as well as vanadium-rich magnetites that form exsolution lamellae in ilmenite grains.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10504 - Mineralogy

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Geologica Carpathica

ISSN

1335-0552

e-ISSN

—

Volume of the periodical

69

Issue of the periodical within the volume

5

Country of publishing house

SK - SLOVAKIA

Number of pages

24

Pages from-to

439-452

UT code for WoS article

000451053700001

EID of the result in the Scopus database

2-s2.0-85058517880