TY  - JOUR
AU  - Chanyshev, Artem
AU  - Bondar, Dmitry
AU  - Wang, Lin
AU  - Fei, Hongzhan
AU  - Tsujino, Noriyoshi
AU  - Song, Yunke
AU  - Martirosyan, Naira
AU  - Chakraborti, Amrita
AU  - Kim, Eun Jeong
AU  - Tang, Hu
AU  - Bhat, Shrikant
AU  - Farla, Robert
AU  - Katsura, Tomoo
TI  - Olivine‐Ahrensite Phase Relations in the Mg<sub>2</sub>SiO<sub>4</sub>‐Fe<sub>2</sub>SiO<sub>4</sub> System as a Function of Temperature
JO  - JGR / Solid earth
VL  - 131
IS  - 1
SN  - 0148-0227
CY  - Hoboken, NJ
PB  - Wiley
M1  - PUBDB-2026-00089
SP  - e2025JB032870
PY  - 2026
N1  - cc-by, ISSN 2169-9356 not unique: **2 hits**.
AB  - Olivine and ahrensite are the primary components of the interiors of Fe-rich terrestrial planets and meteorites, making their phase relations crucial for planetary science. Moreover, their phase relations can be used for calibrating large-volume high-pressure devices such as multi-anvil apparatus. Here we defined the olivine–ahrensite phase relations in the MgO-FeO-SiO<sub>2</sub> system at 7.5–12.0 GPa at 1,530 and 1,950 K using a multi-anvil apparatus. Combining the current results with our previously determined binary loop at 1,740 K, we re-estimated the shock parameters of several L5 and L6-types meteorites. Also, we determined the olivine-ahrensite phase ratio and compositions along cold and warm Mars aerotherms for Mg/(Mg + Fe) ratios of 0.75 and 0.80. Using this mineralogical model, we estimated and compared seismic wave velocity profiles in Mars' interior to data from the InSight geophysical mission.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1029/2025JB032870
UR  - https://bib-pubdb1.desy.de/record/643283
ER  -