Highly siderophile element and osmium isotope systematics of basaltic volcanics: A different approach to petrological processes


ARSLAN M., TEMİZEL İ., ABDİOĞLU YAZAR E., AR B., YÜCEL C.

BULLETIN OF THE MINERAL RESEARCH AND EXPLORATION, vol.167, pp.83-109, 2022 (ESCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 167
  • Publication Date: 2022
  • Doi Number: 10.19111/bulletinofmre.901001
  • Journal Name: BULLETIN OF THE MINERAL RESEARCH AND EXPLORATION
  • Journal Indexes: Emerging Sources Citation Index (ESCI), Scopus, Directory of Open Access Journals, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.83-109
  • Keywords: Basalt, Highly Siderophile, Element, Osmium Isotope, Petrology, PLATINUM-GROUP ELEMENTS, RE-OS ISOTOPE, CHALCOPHILE METAL VARIATIONS, SULFIDE SATURATION HISTORY, SPINEL PERIDOTITE XENOLITHS, MANTLE-CRUST FRACTIONATION, CONTINENTAL FLOOD BASALTS, LARGE IGNEOUS PROVINCE, LITHOSPHERIC MANTLE, CENOZOIC BASALTS
  • Karadeniz Technical University Affiliated: Yes

Abstract

The highly siderophile element (HSE) or platinum group element (PGE) and Os isotope systematics of basaltic volcanics have recently received a significant attention because of their potential to constrain the petrological processes on magma generation and evolution. The HSE and Os isotope data, which are generally observed at very low concentrations in basalts and obtained by modern enrichment and analytical techniques, are frequently used in petrological studies. The HSE contents and ratios from whole-rock analysis of basalts, and combined evaluation with the theoretical knowledge and modelling of HSE behaviour during the partial melting of mantle and the differentiation of basaltic magma would provide opportunity for geochemical modelling on mantle melting. Besides, HSE contents and Pd-PGE/Ir-PGE ratios are important indicators for the nature of mantle sulfides, the sulfur saturation conditions of the mantle source, sulfide segregation, fractional crystallization, crustal assimilation and partial melting degrees in the origin and evolution of mantle-derived magmas. Therefore, in addition to the traditional whole-rock geochemical data obtained from Cenozoic aged basalts observed widely in Turkey, HSE and Os isotope systematics of these basalts can contribute to define the geochemical features of the mantle source, and to model petrological processes which are effective in the magma evolution.