Trace and rare-earth element behaviors during alteration and mineralization in the Attepe iron deposits (Feke-Adana, southern Turkey)

Basit Öğe Kaydı
dc.contributor.authorKupeli, Suayip
dc.date.accessioned2020-03-26T18:05:28Z
dc.date.available2020-03-26T18:05:28Z
dc.date.issued2010
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractHydrothermal-metasomatic iron ores consisting mainly of siderite, ankerite and hematite are located in the Lower-Middle Cambrian limestone marbles of the Eastern Taurus Belt. The siderite, ankerite, hematite and host rock samples from the deposits have been investigated for major, trace, and rare-earth elements (REE) to evaluate the element mobility and mass transfer during fluid-rock interactions. Geochemical data show that the (Fe + Mn) concentrations regularly increase, and the (Ca + Mg + TC) contents progressively decrease from the host rock through ankerite, siderite, and hematite ores with increasing chemical index of metasomatism (CIM) values. The host limestone exhibits a pronounced positive Eu anomaly (2 to 3.45) and negative Ce anomalies (0.59 to 0.96). This limestone has much lower REE contents (3.92 ppm) than the Post-Archean Australian Shale (PAAS, 184.77 ppm). The elements of Cr, Y, Tb, Ho, and Lu are immobile and effectively conserved during hydrothermal processes. Compared with the host rock (precursor rock), the altered (ankerite) and mineralized rocks (siderite and hematite) were enriched in Fe, Mn, Ba and depleted in Ca, Mg, Si, Al, K, Na, Ti, and P during alteration and mineralization. The average REE contents of the ore samples (9.13 to 12.01 ppm, mean = 10.44 ppm) are higher than those of the host rock (3.92 ppm), but significantly lower than in the PAAS. Most of the REE were mobilized and fractionated during the hydrothermal processes that may have resulted mainly from low Eh and pH, plentiful complexing ligands, variable high temperature, changing ionic radius of REE and composition of the mineralizing fluids. The middle rare-earth elements (MREE) show diverse behaviors in different sample groups. The light rare-earth elements (LREE) were strongly leached out of the system, and the heavy rare-earth elements (HREE) were preferentially retained as REE-CI and/or -SO(4) complexes. The (La/Lu)(N) ratios show a decreasing trend from the host rock to siderite, ankerite, and hematite with increasing HREE and decreasing LREE contents. The ore samples show pronounced positive Eu (1.61 to 8.86) anomalies and weak to moderate negative Ce anomalies (0.34 and 0.98). Three samples display slightly positive Ce (1.06-1.09) anomalies. In the ore samples, the high field strength elements (HFSE) such as Ti, Zr, and P were depleted, as were the light lithophile (LIL, e.g., K, Th, U, Pb, La, and Ce) and trans-transition (TRT, e.g., Cu, Ni, and Zn) elements. The Ba and Sr demonstrate dissimilar behavior during the fluid-rock interaction. Ba was enriched, while Sr was depleted. (C) 2010 Elsevier BM. All rights reserved.en_US
dc.identifier.doi10.1016/j.gexplo.2010.04.001en_US
dc.identifier.endpage74en_US
dc.identifier.issn0375-6742en_US
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage51en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.gexplo.2010.04.001
dc.identifier.urihttps://hdl.handle.net/20.500.12395/25438
dc.identifier.volume105en_US
dc.identifier.wosWOS:000280534900001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.relation.ispartofJOURNAL OF GEOCHEMICAL EXPLORATIONen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectAnkeriteen_US
dc.subjectAttepeen_US
dc.subjectGeochemistryen_US
dc.subjectHematiteen_US
dc.subjectHFSEen_US
dc.subjectHydrothermal iron depositen_US
dc.subjectLILEen_US
dc.subjectREEen_US
dc.subjectSideriteen_US
dc.subjectTRTEen_US
dc.subjectTurkeyen_US
dc.titleTrace and rare-earth element behaviors during alteration and mineralization in the Attepe iron deposits (Feke-Adana, southern Turkey)en_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu