Crustal Structure of the Eastern Part of Central Anatolia (Turkey)

Hüseyin Yilmaz & Sevda ÖZEL

Makale detayları

Crustal Structure of the Eastern Part of Central Anatolia (Turkey)

Yazarlar:

Hüseyin Yilmaz & Sevda ÖZEL

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Earth Sciences 2008 Vol.17 Issue 1, pp.169-185

Belge Tipi:

Makale

Yayın Tarihi:

12/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000732559

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985

Özet:

 

This study aims to examine crustal structure in the eastern part of central Anatolia using the magnetotelluric (MT) method. MT data have been collected from 37 stations along a north-south 220 km profile crossing in succession the Tokat Massif (Pontide basement), the Ankara-Erzincan Suture Zone, the Kırşehir Massif, the Pınarbaşı-Divriği Ophiolitic Belt and the Tauride-Anatolide Belt. Data were modelled to derive a geo-electrical model using 2-dimensional inverse techniques. Low resistivity values (981 Ohm.m) coincide with the southern part of the Pontide Magmatic Arc, the Kırşehir Block and the Tauride-Anatolide Belt and are interpreted as upper crust of igneous and metamorphic origin. Low resistivity values (< 981 Ohm.m) are identified below the upper crust and the layer accepted as lower crust ranges from 10-15 km beneath the high resistive zones. Total crust thickness is approximately 45 km in the Tokat Massif, Kırşehir Massif and Tauride-Anatolide Platform. Two vertical conductive zones have been detected beneath the Ankara-Erzincan Suture in the north and the Divriği-Pınarbaşı Ophiolitic Belt in the south. The northern conductive zone identifies the Ankara-Erzincan Suture and the southern conductive zone corresponds to the Divriği-Pınarbaşı Ophiolitic Belt where it provides evidence for an Inner Tauride Suture. The relationship between the gravity and resistivity data has been researched and the high gravity anomalies were found to be consistent with high conductive zones along the MT profile.

 

This study aims to examine crustal structure in the eastern part of central Anatolia using the magnetotelluric (MT) method. MT data have been collected from 37 stations along a north-south 220 km profile crossing in succession the Tokat Massif (Pontide basement), the Ankara-Erzincan Suture Zone, the Kırşehir Massif, the Pınarbaşı-Divriği Ophiolitic Belt and the Tauride-Anatolide Belt. Data were modelled to derive a geo-electrical model using 2-dimensional inverse techniques. Low resistivity values (981 Ohm.m) coincide with the southern part of the Pontide Magmatic Arc, the Kırşehir Block and the Tauride-Anatolide Belt and are interpreted as upper crust of igneous and metamorphic origin. Low resistivity values (< 981 Ohm.m) are identified below the upper crust and the layer accepted as lower crust ranges from 10-15 km beneath the high resistive zones. Total crust thickness is approximately 45 km in the Tokat Massif, Kırşehir Massif and Tauride-Anatolide Platform. Two vertical conductive zones have been detected beneath the Ankara-Erzincan Suture in the north and the Divriği-Pınarbaşı Ophiolitic Belt in the south. The northern conductive zone identifies the Ankara-Erzincan Suture and the southern conductive zone corresponds to the Divriği-Pınarbaşı Ophiolitic Belt where it provides evidence for an Inner Tauride Suture. The relationship between the gravity and resistivity data has been researched and the high gravity anomalies were found to be consistent with high conductive zones along the MT profile.

Makale detayları

Crustal Structure of the Eastern Part of Central Anatolia (Turkey)

Yazarlar: Hüseyin Yilmaz & Sevda ÖZEL

Yayıncı: TUBITAK

Dergi: Turkish Journal of Earth Sciences 2008 Vol.17 Issue 1, pp.169-185

Belge Tipi: Makale

Yayın Tarihi: 12/2007

Belge Dili: Türkçe

Document ID (Org No.): 2000732559

Sıklık: İki Aylık

eISSN: 1303-619X

pISSN: 1300-0985

Sayı

Yazarlar:

Hüseyin Yilmaz & Sevda ÖZEL

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Earth Sciences 2008 Vol.17 Issue 1, pp.169-185

Belge Tipi:

Makale

Yayın Tarihi:

12/2007

Belge Dili:

Türkçe

Document ID (Org No.):

2000732559

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985