Facebook Instagram Twitter RSS Feed PodBean Back to top on side

K/Ar mineral geochronology of the northern part of the Sithonia Plutonic Complex (Chalkidiki, Greece): implications for its thermal history and geodynamic interpretation

In: Geologica Carpathica, vol. 64, no. 2
Kyriaki Pipera - Antonis Koroneos - Triantafyllos Soldatos - Zoltan Pecskay - Georgios Christofides

Details:

Year, pages: 2013, 133 - 140
Language: eng
Keywords:
Tertiary granitoids of Rhodope, Sithonia Plutonic Complex, K/Ar geochronology, thermal evolution
About article:
New K/Ar mineral ages of thirty nine samples (biotite, muscovite, K-feldspar) from the two-mica granodiorite to granite and leucogranite of the northern part of the Sithonia Plutonic Complex (Chalkidiki, Greece) are given in the present study. These data along with existing Rb/Sr mica and U/Pb zircon ages are used to investigate the thermal history of the plutonic complex and shed light on the process that affected it, and caused discordant Rb/Sr and K/Ar mineral ages. The K/Ar mineral dating yielded ages ranging from 38 to 49 Ma for muscovites, 32 to 47 Ma for biotites and 37 to 43 Ma for K-feldspars, respectively. The comparison of the K/Ar, Rb/Sr and U/Pb mineral ages and the closure temperatures of the different isotopic systems for the different minerals indicate a rapid cooling rate for the Sithonia pluton. The latter supports the hypothesis that the pluton was formed in a post orogenic extensional regime. Moreover, the K/Ar mineral isochrones indicate that a reheating of the pluton took place before 37 Ma and partially rejuvenated the K/Ar and Rb/Sr isotopic system of the minerals.
How to cite:
ISO 690:
Pipera, K., Koroneos, A., Soldatos, T., Pecskay, Z., Christofides, G. 2013. K/Ar mineral geochronology of the northern part of the Sithonia Plutonic Complex (Chalkidiki, Greece): implications for its thermal history and geodynamic interpretation. In Geologica Carpathica, vol. 64, no.2, pp. 133-140. 1335-0552. DOI: https://doi.org/10.2478/geoca-2013-0009

APA:
Pipera, K., Koroneos, A., Soldatos, T., Pecskay, Z., Christofides, G. (2013). K/Ar mineral geochronology of the northern part of the Sithonia Plutonic Complex (Chalkidiki, Greece): implications for its thermal history and geodynamic interpretation. Geologica Carpathica, 64(2), 133-140. 1335-0552. DOI: https://doi.org/10.2478/geoca-2013-0009
About edition: