Structural interpretation of gabbroic rocks in Agacoren Granitoid, central Turkey: field observations and aeromagnetic data

Date

1998-03-01

Author

Kadioglu, Yk
Ates, A
Güleç, Nilgün Türkan

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Gabbroic rocks crop out commonly in different localities of the Central Anatolian Crystalline Complex and are interpreted by many researchers as the remnants of a Neotethyan ophiolitic suite now observed as roof-pendants in the granitoids of the complex. In this study, the structural position of the gabbroic rocks within one of the granitoids of the Central Anatolian Crystalline Complex, namely the Agacoren Granitoid, is determined by geological and aeromagnetic data from the central part of the pluton. The gabbroic rocks have sinuous contacts with the Agacoren Granitoid and they display a gradual change in composition and texture from gabbro at the top of the hills to diorite at the foot of the hills towards the contact with granitoid. Power spectra, high-and low-pass filtered aeromagnetic and pseudogravimetric anomalies were produced using geophysical methods. A two-dimensional model constructed from the high pass-filtered anomalies, with the control of the in situ susceptibility data and the low-pass filtered anomaly, suggests existence of a shallow conical-shaped and deeply buried gabbroic body. The deep body extends down to deeper levels of the upper crust and, given the textural and compositional features which suggest magma mixing, is interpreted as an intrusion coeval with the Agacoren Granitoid.

Subject Keywords

GRAVITY

URI

https://hdl.handle.net/11511/34549

Journal

GEOLOGICAL MAGAZINE

DOI

https://doi.org/10.1017/s001675689800836x

Collections

Department of Geological Engineering, Article

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Citation Formats

Y. Kadioglu, A. Ates, and N. T. Güleç, “Structural interpretation of gabbroic rocks in Agacoren Granitoid, central Turkey: field observations and aeromagnetic data,” GEOLOGICAL MAGAZINE, pp. 245–254, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34549.