Mineral records of the pyroxenites formed within harzburgites (Ulaş, Sivas, Turkey): implications on petrogenesis and tectonic setting

Özgür BİLİCİ; Hasan KOLAYLI

Makale detayları

Mineral records of the pyroxenites formed within harzburgites (Ulaş, Sivas, Turkey): implications on petrogenesis and tectonic setting

Yazarlar:

Özgür BİLİCİ | Hasan KOLAYLI

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Earth Sciences 2018 Vol.27 Issue 5, pp.384-404

Belge Tipi:

Makale

Yayın Tarihi:

9/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000731136

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985

Özet:

 


 
                         In this article, the petrological processes of the clinopyroxenite dykes and host peridotites occurring in Ulaş District (Sivas,
mid-Anatolia, Turkey) are discussed. The new geochemical data from major minerals in the clinopyroxenite dykes and host harzburgites
revealed differences to the supra-subduction zone (SSZ)-type pyroxenites and peridotites. In particular, the NiO content of olivines
in the host harzburgites showed the signature of the mantle, whereas rare olivines of the clinopyroxenites had a NiO content and Fo
number that were inferior to those of mantle peridotites. The high Mg-number of clinopyroxenes in the clinopyroxenites was likely
associated with the partial remelting of the host harzburgites. Additionally, the rare earth element pattern of clinopyroxenes from the
studied clinopyroxenites exhibited a similar pattern to those of the other SSZ or fore-arc clinopyroxenes. Additionally, the low Mgnumber
and relatively high Cr-number of spinels in the clinopyroxenites showed similarity to the subduction-related origin. Based on
textural and geochemical evidence, the harzburgites were interpreted as depleted mantle rock, which was modified by melt-peridotite
interactions. Consequently, the pyroxenites likely occurred as a crystallizing or cumulative zone of the SSZ-type melt and the minerals
were gained from partial melting of the harzburgites through the interaction with such magma.

                    

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Makale detayları

Mineral records of the pyroxenites formed within harzburgites (Ulaş, Sivas, Turkey): implications on petrogenesis and tectonic setting

Yazarlar: Özgür BİLİCİ | Hasan KOLAYLI

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Earth Sciences 2018 Vol.27 Issue 5, pp.384-404

Belge Tipi: Makale

Yayın Tarihi: 9/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000731136

Sıklık: İki Aylık

eISSN: 1303-619X

pISSN: 1300-0985

Sayı

Yazarlar:

Özgür BİLİCİ | Hasan KOLAYLI

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Earth Sciences 2018 Vol.27 Issue 5, pp.384-404

Belge Tipi:

Makale

Yayın Tarihi:

9/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000731136

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985