EGU23-12275
https://doi.org/10.5194/egusphere-egu23-12275
EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

New formulation of the olivine thermobarometer for mantle xenoliths

Igor Ashchepkov
Igor Ashchepkov
  • Institute of Geology and Mineralogy SB RAS, Geology, Novosibirsk, Russian Federation (igor.ashchepkov@igm.nsc.ru)

The suggested olivin thermometry for mantle peridotite and zenolith (Hoog et al., 2010, Bussweller et al., 2017) allow correct estimation of the temperatures using high precision data obtained by LA ICP MA or even EPMA inn hjigh resolution. IN this version we tried to obtain the pressure eestimates using the inversion of the Ol thermometer to barometer. And also we substituted the CaO by MnO withe essential correction. In this variant  I received the pair of the Ol thermometer and Mn - in - olivine barometer which allow to work not only with the high resolution data but with the routine analyses and obtain not bad estimates for the see of data for the Udachnaya, Zarnotsa, Aykhal and other pipes (Ashchepkov et al., 2010-2021) and even fo the diamond inclusions (Ashchepkov et al., 2021-2023). RBRF grant 19-05-007888

How to cite: Ashchepkov, I.: New formulation of the olivine thermobarometer for mantle xenoliths, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-12275, https://doi.org/10.5194/egusphere-egu23-12275, 2023.

Supplementary materials

Supplementary material file