Analotid kuşağı boyunca neojen volkanizmasının paleomağnetizmadaki izleri ve bölgenin tektonik evrimine katkıları
Paleomagnetism of neogene volcanism in anatolid zone and contribution to its tectonic evolution
- Tez No: 83180
- Danışmanlar: PROF. DR. NACİ ORBAY
- Tez Türü: Doktora
- Konular: Jeofizik Mühendisliği, Geophysics Engineering
- Anahtar Kelimeler: Neojen, Orta Anadolu bölgesi, Paleomanyetizma, Tektonik özellikler, Volkanitler, Neogene, Central Anatolian region, Paleomagnetism, Tectonic properties, Volcanism
- Yıl: 1999
- Dil: Türkçe
- Üniversite: İstanbul Üniversitesi
- Enstitü: Fen Bilimleri Enstitüsü
- Ana Bilim Dalı: Jeofizik Mühendisliği Ana Bilim Dalı
- Bilim Dalı: Belirtilmemiş.
- Sayfa Sayısı: Belirtilmemiş.
Özet
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Özet (Çeviri)
ABSTRACT PALEOMAGNETISM OF NEOGENE VOLCANISM IN ANATOLD) ZONE AND CONTRIBUTION TO ITS TECTONIC EVOLUTION Studying area is located in some areas in Anatolid Zone (Inner part of western Anatolia and Central Anatolia, namely Afyon, Nevşehir, Hasandağı-Melendiz Dag, Karadağ, Karacadağ, Karapınar). For paleomagnetic study, it was taken oriented 324 core samples from 36 locations. First of all, natural remanent magnetizations of all samples were measured by Spiner magnetometer and then thermal demagnetization treatment was applied to each sample by MMTD60 instrument. All paleomagnetic parameters and diagrams were calculated and drew by IAPD Release 92 computer program. Pliocene aged AF and KK sites from Afyon region have anti-clockwise rotations, respectively 20° and 39°. Miocene aged rock samples from same region represents 55° anti-clockwise rotation. Net Miocene anti-clockwise rotation for this region is between 16° and 35°. Plio-Quarternary aged sites (AS and OD) from Nevşehir volcanic region volcanism have anti-clockwise rotations respectively 18° and 7°. Upper Miocene aged rock samples (Ağılh-Çaküh,OC ) show 26° anti clockwise rotations. Net Miocene anti-clockwise rotation for this region is between 8° and 19°. The amount of anti-clockwise rotation of Plio-Quarternary aged two locations from Hasan Dağ (HD) and Melendiz Dağı (MD) are 13° and 1 1°. Pliocene aged sites from Karadağ Volcanism have 6° anti-clockwise rotations. Plio- Quarternary aged she (KRP) from Karapınar area represent 22° anti-clockwise rotations. 11.9 My aged rock samples (KRC) from Karacadağ show 18° anti clockwise rotations. In the second phase of study, all data, with other paleomagnetic data in and around region, was evaluated to obtain tectonic and structural implications about region. In Miocene, mean anti-clockwise rotations increase from East (Nevşehir, 8° - 19° ) to West (Afyon, 16°-35° ). This implies that there are two different tectonic styles or systems in the region. The evaluation of all data, in general, shows that little more rotations obtained in region could be an evidence of local tectonic events and/or the region, in mis actual short geologic time, may be exposed to the active deformations. When we look at all Neogene paleomagnetic data in the region, anti-clockwise rotations are dominant and this can be interpreted as escape of Anatolian Block (or Plate) to west. yih