TitaniQ Thermometer and Trace Element Composition of Rutile in Meta-Ophiolitic Rocks From the Kazdag Massif, Biga Peninsula
| dc.contributor.author | Sengun, Firat | |
| dc.date.accessioned | 2025-01-27T21:23:37Z | |
| dc.date.available | 2025-01-27T21:23:37Z | |
| dc.date.issued | 2016 | |
| dc.department | Çanakkale Onsekiz Mart Üniversitesi | |
| dc.description.abstract | Ophiolitic meta-gabbros are exposed on the Kazdag Massif located in the southern part of the Biga Peninsula. Trace element composition of rutile and quartz was determined for metagabbros from the Kazdag Massif by LA-ICP-MS. The Zr content of both matrix rutiles and rutile inclusions in garnet range from 176 to 428 ppm (average 335 ppm). Rutile grains usually have a homogeneous Zr distribution. The rutile grains from studied samples in the Kazdag Massif are dominated by subchondritic Nb/Ta (11-23) and Zr/Hf ratios (20-33). Nb/Ta and Zr/Hf show positive correlation, which is probably produced by silicate fractionation. The Nb/Ta and Zr/Hf ratios increase with a decrease in Ta and Hf contents. The core of rutile grains are generally characterized by low Nb/Ta ratios of 17-18 whereas the rims exhibit relatively high Nb/Ta ratios of 19-23. Trace element analyses in rutile suggest that these rutile grains were grown from metamorphic fluids. Ti-in-quartz can be used as a thermobarometer when used in combination with Zr-in-rutile thermometer. P-T conditions of ophiolitic meta-gabbros were calculated by Ti content of quartz and Zr content of rutile, which are in equilibrium with each other. Ti contents of quartz are ranging between 28 and 42 ppm (average 36 ppm). A P-T estimate can be obtained from the intersection of the Ti-in-quartz isopleths with the Zr-in-rutile isopleths, which yield similar to 660 degrees C and 10 kbar. The P-T conditions of meta-ophiolitic rocks suggest that they occur as a different separate higher-pressure tectonic slice in the Kazdag Massif. Amphibolite-facies metamorphism resulted from northward subduction of the Izmir-Ankara branch of the Neo-Tethyan Ocean under the Sakarya Zone. Metamorphism was followed by internal imbrication of the Kazdag Massif resulting from southerly directed compression during the collision. | |
| dc.identifier.endpage | 154 | |
| dc.identifier.issn | 1016-9164 | |
| dc.identifier.issue | 2 | |
| dc.identifier.startpage | 131 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12428/29222 | |
| dc.identifier.volume | 59 | |
| dc.identifier.wos | WOS:000443714000002 | |
| dc.identifier.wosquality | N/A | |
| dc.indekslendigikaynak | Web of Science | |
| dc.language.iso | tr | |
| dc.publisher | Tmmob Jeoloji Muhendisleri Odasi | |
| dc.relation.ispartof | Turkiye Jeoloji Bulteni-Geological Bulletin of Turkey | |
| dc.relation.publicationcategory | info:eu-repo/semantics/openAccess | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.snmz | KA_WoS_20250125 | |
| dc.subject | Metamorphism | |
| dc.subject | Rutile | |
| dc.subject | Quartz | |
| dc.subject | Thermobarometer | |
| dc.subject | Meta-gabbro | |
| dc.title | TitaniQ Thermometer and Trace Element Composition of Rutile in Meta-Ophiolitic Rocks From the Kazdag Massif, Biga Peninsula | |
| dc.type | Article |
