dc.contributor.author | Sipahi, Ferkan | |
dc.contributor.author | Sadiklar, M. Burhan | |
dc.date.accessioned | 2014-09-16T07:59:19Z | |
dc.date.available | 2014-09-16T07:59:19Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 0016-7029 | |
dc.identifier.issn | 1556-1968 | |
dc.identifier.uri | https://doi.org/10.1134/S0016702914040089 | |
dc.description.abstract | Dacitic rocks that crop out around the Zigana Mountain (GumuAYhane) in the eastern Pontide (NE Turkey), are mainly composed of quartz, plagioclase, sanidine, amphibole, muscovite, and biotite as the main minerals. Zircon and rutile are the accessory minerals. Pyrite, chalcopyrite, and covellite are the opaque components. On the basis of trace-element data, dacites have been classified as Dacite-I and Dacite-II. Dacite-I is tholeitic-transitional, whereas Dacite-II is transitional-calc-alkaline. The geochemical variation can be explained by the fractionation of the common mineral phases, such as plagioclase, hornblende, magnetite, and apatite. Dacites also show island-arc properties, with negative Nb, Sr, P, and Ti anomalies. The trace-element distrubitions of the dacitic rocks reflect the typical characteristics of rocks from the subduction-related tectonic setting, with enrichment of large-ion lithofile elements and light rare-earth element, but depletion in high-field-strength elements. The dacitic rocks are developed through plagioclase +/- hornblende-controlled fractionation from the same parental magma that settled in two successive stages and are derived from an enriched source, probably by the mixing of slab-derived and lithospheric melts. | en_US |
dc.description.sponsorship | KTU Research FundKaradeniz Technical University [2001.112.005.1] | en_US |
dc.description.sponsorship | This paper was improved based on a part of the Ph.D. Thesis of the first author. The authors thank P. Moller from the GFZ (Potsdam-Germany), K. Heide from the Institute of Earthsciences of the Friedrich-Schiller University (Jena-Germany), Peter Halbach, Bernhard Pracejus and Margret Halbach from Geochemistry, Hydrogeology and Mineralogy of the Freie University, (Berlin, Germany), the DAAD (German Academic Exchange Service), and the KTU Research Fund (Project no. 2001.112.005.1) for major and trace element analyses, and also Cuneyt en and V. R. Troll for win contribution to the paper. The contributions of editor and Dr. N.L. Mironov are greatly appreciated. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Maik Nauka/Interperiodica/Springer | en_US |
dc.relation.ispartof | Geochemistry International | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Dacite | en_US |
dc.subject | eastern Pontide | en_US |
dc.subject | fractional crystallization | en_US |
dc.subject | geochemistry | en_US |
dc.subject | REE | en_US |
dc.subject | Turkey | en_US |
dc.title | Geochemistry of dacitic volcanics in the Eastern Pontides (NE Turkey) | en_US |
dc.type | article | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.description.wospublicationid | WOS:000334243700004 | en_US |
dc.description.scopuspublicationid | 2-s2.0-84898079631 | en_US |
dc.department | Gümüşhane Üniversitesi | en_US |
dc.authorid | SIPAHI, Ferkan / 0000-0002-4072-4834 | |
dc.identifier.volume | 52 | en_US |
dc.identifier.issue | 4 | en_US |
dc.identifier.startpage | 296 | en_US |
dc.identifier.doi | 10.1134/S0016702914040089 | |
dc.identifier.endpage | 315 | en_US |
dc.authorwosid | SIPAHI, Ferkan / AAB-5064-2020 | |
dc.authorscopusid | 25925403900 | |
dc.authorscopusid | 6506245399 | |