Devitrification of Volcanic Glasses in Konya Volcanic Units, Turkey

Zehra Karakaş & Selahattin Kadir -

Makale detayları

Devitrification of Volcanic Glasses in Konya Volcanic Units, Turkey

Yazarlar:

Zehra Karakaş & Selahattin Kadir -

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Earth Sciences 2000 Vol.9 Issue 1, pp.39-46

Belge Tipi:

Makale

Yayın Tarihi:

12/1999

Belge Dili:

Türkçe

Document ID (Org No.):

2000732978

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985

Özet:

 

The study area is composed of volcanic, sedimentary and volcano-sedimentary units, which are exposed  south and southwest of the city of Konya. XRD analysis indicates that the volcanic units contain halloysite, kaolinite,  smectite, illite and sepiolite type clay minerals and opal-CT, feldspar, quartz, minamiite and jarosite type non-clay  minerals. SEM studies show that volcanic glasses, which are the main component of the volcanic units, appeared  as curviplanar, vesicular-planar and in highly fractured shapes. Fractures and dissolution voids of the volcanic  glasses are generally filled by hexagonal kaolinite, fibrous halloysite and smectite. Mineralogical and  micromorphological observations indicate that clay minerals were neoformed by hydration of volcanic glasses.  Neoformation of these minerals was probably controlled by the different chemical composition of the volcanic  glasses in addition to the presence of feldspar.

 

The study area is composed of volcanic, sedimentary and volcano-sedimentary units, which are exposed  south and southwest of the city of Konya. XRD analysis indicates that the volcanic units contain halloysite, kaolinite,  smectite, illite and sepiolite type clay minerals and opal-CT, feldspar, quartz, minamiite and jarosite type non-clay  minerals. SEM studies show that volcanic glasses, which are the main component of the volcanic units, appeared  as curviplanar, vesicular-planar and in highly fractured shapes. Fractures and dissolution voids of the volcanic  glasses are generally filled by hexagonal kaolinite, fibrous halloysite and smectite. Mineralogical and  micromorphological observations indicate that clay minerals were neoformed by hydration of volcanic glasses.  Neoformation of these minerals was probably controlled by the different chemical composition of the volcanic  glasses in addition to the presence of feldspar.

Makale detayları

Devitrification of Volcanic Glasses in Konya Volcanic Units, Turkey

Yazarlar: Zehra Karakaş & Selahattin Kadir -

Yayıncı: TUBITAK

Dergi: Turkish Journal of Earth Sciences 2000 Vol.9 Issue 1, pp.39-46

Belge Tipi: Makale

Yayın Tarihi: 12/1999

Belge Dili: Türkçe

Document ID (Org No.): 2000732978

Sıklık: İki Aylık

eISSN: 1303-619X

pISSN: 1300-0985

Sayı

Yazarlar:

Zehra Karakaş & Selahattin Kadir -

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Earth Sciences 2000 Vol.9 Issue 1, pp.39-46

Belge Tipi:

Makale

Yayın Tarihi:

12/1999

Belge Dili:

Türkçe

Document ID (Org No.):

2000732978

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985