1 Ocak 2015 Dergi makalesi Açık Erişim

Yildiz, Ahmet; Kibici, Yasar; Bagci, Metin; Dumlupunar, Ibrahim; Kocabas, Cumhur; Aritan, A. Ekrem

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{
  "@context": "https://schema.org/", 
  "@id": 76415, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Afyon Kocatepe Univ, Fac Engn, Afyon, Turkey", 
      "name": "Yildiz, Ahmet"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Dumlupinar Univ, Fac Engn, Kutahya, Turkey", 
      "name": "Kibici, Yasar"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Afyon Kocatepe Univ, Fac Engn, Afyon, Turkey", 
      "name": "Bagci, Metin"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Afyon Kocatepe Univ, Fac Engn, Afyon, Turkey", 
      "name": "Dumlupunar, Ibrahim"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Balikesir Univ, Fac Engn, Balikesir, Turkey", 
      "name": "Kocabas, Cumhur"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Afyon Kocatepe Univ, Fac Engn, Afyon, Turkey", 
      "name": "Aritan, A. Ekrem"
    }
  ], 
  "datePublished": "2015-01-01", 
  "description": "Eocene volcanic rocks from the Central Sakarya Zone in the north of the A degrees zmir-Ankara suture zone (IASZ) are predominantly intermediate-acidic lava flows and pyroclastics that crop out with a W-E orientation. The volcanic rocks include Bozani double dagger lavas, agglomerates, A degrees AYdir lavas, and KapA +/- kaya tuffs. The Bozani double dagger lavas contain plagioclase, hornblende, clinopyroxene, and biotite, whereas the A degrees AYdir lavas consist of plagioclase, hornblende, biotite, and quartz. According to the total alkali-silica (TAS) diagram, the Bozani double dagger lavas are mainly composed of andesite and dacite, with one sample of trachyandesite, whereas the A degrees AYdir lavas mainly contain dacite and minor andesite. Bozani double dagger and A degrees AYdir lavas exhibit moderate- to high-K calc-alkaline character. Major oxide and trace element variations suggest the effects of fractional crystallization in the evolution of the volcanic rocks. N-type mid-ocean ridge basalt (MORB) normalized trace element patterns of the lavas exhibit enrichment in large ion lithophile elements (LILEs; K, Rb, Ba, Th) and depletion in high field strength elements (HFSEs; Zr, Ti, Y). In addition, the chondrite-normalized rare earth element (REE) plots of the rocks show moderately enriched and nearly concave-shaped patterns (La-N/Yb-N = 5.4-17.6 for the Bozani double dagger lavas and 6.5-13.1 for the A degrees AYdir lavas), suggesting clinopyroxene (Cpx) and hornblende dominated fractionation. Negative Eu anomalies in the acidic lavas reveal plagioclase fractionation. Some trace element ratios of the lavas demonstrate a subduction signature and crustal contamination in the generation of the parent magma(s). Multi-dimensional tectonic discrimination diagrams suggest that the studied volcanic rocks have developed in a collisional setting.", 
  "headline": "Petrogenesis of the post-collisional Eocene volcanic rocks from the Central Sakarya Zone (Northwestern Anatolia, Turkey): Implications for source characteristics, magma evolution, and tectonic setting", 
  "identifier": 76415, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Petrogenesis of the post-collisional Eocene volcanic rocks from the Central Sakarya Zone (Northwestern Anatolia, Turkey): Implications for source characteristics, magma evolution, and tectonic setting", 
  "url": "https://aperta.ulakbim.gov.tr/record/76415"
}