Please use this identifier to cite or link to this item:
https://hdl.handle.net/11499/4182
Title: | The magnetic susceptibility of granitic rocks as a proxy for geochemical composition: Example from the Saruhan granitoids, NE Turkey | Authors: | Aydın, Ali Ferré, E.C. Aslan, Z. |
Keywords: | Granite Magnetic susceptibility Major elements Pluton Turkey chemical composition field method granitoid igneous geochemistry magnetic method magnetic survey magnetic susceptibility mineralogy petrogenesis petrography Eurasia |
Abstract: | The magnetic susceptibility of rocks is determined by their bulk chemistry and magnetic mineralogy. In this case study of the Saruhan pluton in Turkey, a detailed survey based on 925 field measurements and 37 whole rock analyses, reveals a strong correlation between magnetic susceptibility and FeOt (R2 = 0.8). Petrographic observations and calculations based on whole-rock major element analyses indicate the presence of magnetite grains. Further calculations show that magnetite accounts for 88% of the magnetic susceptibility. The spatial correlation between FeOtotal and the magnetic susceptibility is particularly spectacular which suggests that Km is a proxy for geochemical differentiation. The zoning pattern of magnetic susceptibility across the pluton is concentric and reverse, with the highest values of magnetic susceptibility in the center. This type of zoning is consistent with a previously proposed petrogenetic model. The comparison of the Saruhan granites with a classic example of paramagnetic granites reveals two contrasted FeOt-Km trends. This suggests that these variations can be a useful tool to distinguish between leucocratic paramagnetic and leucocratic ferrimagnetic granites. © 2007 Elsevier B.V. All rights reserved. | URI: | https://hdl.handle.net/11499/4182 https://doi.org/10.1016/j.tecto.2007.04.009 |
ISSN: | 0040-1951 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
Show full item record
CORE Recommender
SCOPUSTM
Citations
55
checked on Aug 17, 2024
WEB OF SCIENCETM
Citations
52
checked on Jul 31, 2024
Page view(s)
78
checked on Aug 24, 2024
Google ScholarTM
Check
Altmetric
Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.