A comparison between fluorite mineralizations in the central Anatolian Massif: Trace-element contents

Koç, Şükrü; Ozsahin, N; Rençber, A.; Özmen, Öner

doi:10.1134/s0016702907050096

Cited by 2 publications

(6 citation statements)

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“…Figure 2. Geology maps of studied fluorite deposits: a) Bayındır, Yeniyapan, and İsahocalı deposits (from Koç et al, 2007); b) Alişar deposit (from Özgenç et al, 2009); c) Akçakent deposit (from Yılmaz and Boztuğ, 1998); and d) Pöhrenk deposit (from Genç, 2006).…”

Section: Sampling and Analytical Methodsmentioning

confidence: 99%

“…The geochemical and geochronological data from the plutonic rocks in the CACC indicate both synand postcollisional magmatism. The central Anatolian plutons host several ore deposits, which comprise skarn and various polymetallic mineralizations (e.g., Pb-Zn, Fe, and Fe-W skarns) (Erler and Bayhan, 1998;Kuşçu and Erler, 1998), some of which are associated with vein fluorite deposits (Genç, 2006;Koç et al, 2007;Şaşmaz and Yavuz, 2007).…”

Section: Geologic Settingmentioning

confidence: 99%

“…As a result of metasomatism involving hydrous oceanic crust, some of the metamorphosed mantle minerals were altered to phlogopite, which contains nearly 3% fluorine (e.g., Edgar and Arima, 1985). Fluorine originating from the melting of phlogopite at great depths of subduction regions is moved upward by hydrothermal fluids to precipitate in fluorite under favorable geologic conditions.fluorite deposits have been the subject of numerous studies over the last three decades (e.g., Yaman, 1985;Genç, 2006;Koç et al, 2007;Şaşmaz and Yavuz, 2007;Uras, 2007). These works have propounded that central Anatolian fluorites precipitated from low-to moderate-temperature fluids (80 to 360 °C) with a wide range of salinity (1 to 24 wt.% NaCl equiv.)…”

Section: Introductionmentioning

confidence: 99%

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Geochemical, microthermometric, and isotopic constraints on the origin of fluorite deposits in central Anatolia, Turkey

Coşanay¹,

Kirat²,

Çevik³

et al. 2017

Turkish J Earth Sci

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We investigate rare earth element geochemistry, microthermometric characteristics, and radiogenic isotope systematics of fluorites and stable isotope compositions of gangue minerals from several fluorite deposits in central Turkey. In the deposits, fluorite is the main ore mineral and it is accompanied by quartz, calcite, and minor pyrite and barite. Veins are represented by three different fluorite types based on their color. Total REY contents of fluorites are highly variable, ranging from 24 to 693 ppm. LREE concentrations of fluorites of all colors are similar but medium and heavy REE abundances of green fluorites are nearly an order of magnitude greater than in both host rocks and purple and yellow fluorites, indicating multiple sources for crystallization. REEs show significant fractionation and purple fluorites with relatively low HREE contents were likely precipitated at an earlier stage. As crystallization continued, green fluorites were nucleated because of ion exchange of LREEs with the host rock/minerals. Fluid inclusions yielded a wide range of homogenization temperatures from 86 °C to 292 °C and salinities from 0 to 20 wt.% NaCl equiv. The 87 Sr/ 86 Sr ratios of fluorites, varying from 0.707627 to 0.709380, overlap with the range of host rocks. 143 Nd/ 144 Nd values suggest two populations: purple fluorites with less radiogenic and green fluorites with more radiogenic Nd isotope ratios. The Sr-Nd isotope systematics of Bayındır fluorites are consistent with that of the Bayındır syenite, indicating that hydrothermal solutions progressively reacted with the host rock until equilibrium was established. δ 18 O values of quartz are slightly higher than the magmatic range. δ 13 C and δ 18 O of calcites fall into the range of marine carbonates. δ 34 S values of barites indicate derivation from diverse reservoirs changing from marine to terrestrial sources. In contrast, sulfur in pyrites points to a magmatic origin. Therefore, is it suggested that magmatic fluids to some extent contributed to the precipitation of fluorite veins.

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Section: Sampling and Analytical Methodsmentioning

confidence: 99%

Section: Geologic Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Geochemical, microthermometric, and isotopic constraints on the origin of fluorite deposits in central Anatolia, Turkey

Coşanay¹,

Kirat²,

Çevik³

et al. 2017

Turkish J Earth Sci

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“…Üst Kretase yaşlı kalkalkalen, subalkalen ve alkalen intrüzif kayaçlar, metamorfik temele ve ofiyolitik birimlere sokulum yapmıştır [3]. Nefelin siyenit bileşimindeki kayaçlar ile [3] alkali magmatizmanın son ürünü olan siyenitik kayaçların kırık ve çatlaklarında [14] florit damarlarının geliştiği belirlenmiştir. OAKK içerisinde farklı bölgelerde yer alan florit yataklarında jeoloji, jeokimya ve mikrotermometrik çalışmalar yapılmıştır [14][15][16][17][18][19].…”

Section: Introductionunclassified

“…Nefelin siyenit bileşimindeki kayaçlar ile [3] alkali magmatizmanın son ürünü olan siyenitik kayaçların kırık ve çatlaklarında [14] florit damarlarının geliştiği belirlenmiştir. OAKK içerisinde farklı bölgelerde yer alan florit yataklarında jeoloji, jeokimya ve mikrotermometrik çalışmalar yapılmıştır [14][15][16][17][18][19]. OAKK içerisinde yer alan Hayriye köyü (Felahiye-Kayseri) (Şekil 1) civarında magmatik kayaçlar ile ilişkili floritler bulunmaktadır.…”

Section: Introductionunclassified

Hayri̇ye (Felahi̇ye-Kayseri̇) Flori̇tleri̇ni̇n Nadi̇r Toprak Element (Nte) Jeoki̇myasi

Yalçın¹,

Uras²,

İlbeyli³

2020

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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Orta Anadolu Kristalen Kompleksinde intrüzif kayaçlara bağlı florit yatakları gelişmiştir. Florit yataklarının kökensel araştırmaları Nadir Toprak Element (NTE) içeriklerine göre yorumlanır. Orta Anadolu Kristalen Kompleksi içerisinde yer alması ve bu kompleks içerisindeki florit yataklarına benzerlikler sunması sebebiyle Hayriye (Felahiye-Kayseri) floritlerinin jeolojik ve NTE içeriklerinin ortaya konulması önem arz eder. Hayriye köyü güneyinde Orta Anadolu siyenitleri ile ilişkili damar tipi epijenetik oluşumlu floritler bulunur. Floritlerin görüldüğü alanlarda siyenitlerde karbonatlaşma ve serisitleşme yaygındır. Hayriye floritlerinin NTE jeokimyası, floritlerin NTE bakımından fakir olduğunu gösterir. Floritler, siyenitler içerisinde gelişmiş kırık ve çatlaklarda hidrotermal evrede oluşmuştur. Cevher oluşumunda ortam düşük sıcaklık ve yüksek oksijen fugasitesine sahiptir. Hayriye floritleri (Tb/Yb)N-(La/Yb)N diyagramında New Mexico kristalize alanında, (La/Yb)N-(Eu/Eu*)N ve Sr-(Eu/Eu*)N diyagramlarında Büyükkızılcık floritlerine benzer alanda, Sc/Eu-Sr diyagramında Akdağmadeni floritleri alanında ve Sc-∑REE diyagramında ise ağır metaller alanında dağılım göstermektedir.

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A comparison between fluorite mineralizations in the central Anatolian Massif: Trace-element contents

Cited by 2 publications

References 4 publications

Geochemical, microthermometric, and isotopic constraints on the origin of fluorite deposits in central Anatolia, Turkey

Geochemical, microthermometric, and isotopic constraints on the origin of fluorite deposits in central Anatolia, Turkey

Hayri̇ye (Felahi̇ye-Kayseri̇) Flori̇tleri̇ni̇n Nadi̇r Toprak Element (Nte) Jeoki̇myasi

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