Paleomagnetic rotations in the Late Miocene sequence from the Çankırı Basin (Central Anatolia, Turkey): the role of strike-slip tectonics

Stella LUCIFORA; Francesca CIFELLI; F. Bora ROJAY; Massimo MATTEI

Makale detayları

Paleomagnetic rotations in the Late Miocene sequence from the Çankırı Basin (Central Anatolia, Turkey): the role of strike-slip tectonics

Yazarlar:

Stella LUCIFORA | Francesca CIFELLI | F. Bora ROJAY | Massimo MATTEI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Earth Sciences 2013 Vol.22 Issue 5, pp.778-792

Belge Tipi:

Makale

Yayın Tarihi:

4/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000731720

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985

Özet:

 

In this paper, new paleomagnetic and anisotropy of magnetic susceptibility (AMS) data from Miocene continental units of the Çankırı Basin are presented, with the main goal of providing additional constraints on its deformational and rotational history during the Late Cenozoic. AMS data indicate a tectonic origin for the magnetic fabric, suggesting that Upper Miocene units were still involved in the deformation processes. Paleomagnetic data show that tectonic rotations in the Çankırı Basin do not show a symmetrical distribution along the opposite edges of the basin, as expected from the observed omega-shape. In particular, by combining our data with those already published, we observe that tectonic rotations increase from the southern portion of the basin toward the north and from the central part toward the basin margins. This distribution reasonably matches with a post-Late Miocene reactivation of the Çankırı Basin margin fault systems, possibly related to the activity of the right-lateral North Anatolian strike-slip fault. In this tectonic interpretation, the complex pattern of paleomagnetic rotations appears to be connected with a local block rotation mechanism due to the activity of faults with strike-slip components of motion along the tectonic margins of the Çankırı Basin.

 

In this paper, new paleomagnetic and anisotropy of magnetic susceptibility (AMS) data from Miocene continental units of the Çankırı Basin are presented, with the main goal of providing additional constraints on its deformational and rotational history during the Late Cenozoic. AMS data indicate a tectonic origin for the magnetic fabric, suggesting that Upper Miocene units were still involved in the deformation processes. Paleomagnetic data show that tectonic rotations in the Çankırı Basin do not show a symmetrical distribution along the opposite edges of the basin, as expected from the observed omega-shape. In particular, by combining our data with those already published, we observe that tectonic rotations increase from the southern portion of the basin toward the north and from the central part toward the basin margins. This distribution reasonably matches with a post-Late Miocene reactivation of the Çankırı Basin margin fault systems, possibly related to the activity of the right-lateral North Anatolian strike-slip fault. In this tectonic interpretation, the complex pattern of paleomagnetic rotations appears to be connected with a local block rotation mechanism due to the activity of faults with strike-slip components of motion along the tectonic margins of the Çankırı Basin.

Makale detayları

Paleomagnetic rotations in the Late Miocene sequence from the Çankırı Basin (Central Anatolia, Turkey): the role of strike-slip tectonics

Yazarlar: Stella LUCIFORA | Francesca CIFELLI | F. Bora ROJAY | Massimo MATTEI

Yayıncı: TUBITAK

Dergi: Turkish Journal of Earth Sciences 2013 Vol.22 Issue 5, pp.778-792

Belge Tipi: Makale

Yayın Tarihi: 4/2013

Belge Dili: Türkçe

Document ID (Org No.): 2000731720

Sıklık: İki Aylık

eISSN: 1303-619X

pISSN: 1300-0985

Sayı

Yazarlar:

Stella LUCIFORA | Francesca CIFELLI | F. Bora ROJAY | Massimo MATTEI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Earth Sciences 2013 Vol.22 Issue 5, pp.778-792

Belge Tipi:

Makale

Yayın Tarihi:

4/2013

Belge Dili:

Türkçe

Document ID (Org No.):

2000731720

Sıklık:

İki Aylık

eISSN:

1303-619X

pISSN:

1300-0985