TY - JOUR
T1 - Allabogdanite, the high-pressure polymorph of (Fe,Ni)2P, a stishovite-grade indicator of impact processes in the Fe–Ni–P system
AU - Britvin, Sergey N.
AU - Shilovskikh, Vladimir V.
AU - Pagano, Renato
AU - Vlasenko, Natalia S.
AU - Zaitsev, Anatoly N.
AU - Krzhizhanovskaya, Maria G.
AU - Lozhkin, Maksim S.
AU - Zolotarev, Andrey A.
AU - Gurzhiy, Vladislav V.
PY - 2019/1/31
Y1 - 2019/1/31
N2 - Allabogdanite, (Fe,Ni)2P, is the only known natural high-pressure phase reported in the Fe–Ni–P system. The mineral, which was previously described from a single meteorite, the Onello iron, is now discovered in the Santa Catharina and Barbianello nickel-rich ataxites. The occurrence of allabogdanite in Santa Catharina, one of the largest and well-studied meteorites, suggests that this mineral is more common than was believed. The formation of allabogdanite-bearing phosphide assemblages in a given meteorite provides evidence that it experienced peak pressure of at least 8 GPa at a temperature above 800 °C. Since the pressure-temperature stability parameters of allabogdanite fall within the margins of the stishovite (rutile-type SiO2) stability area, the former can be employed as a convenient stishovite-grade indicator of significant impact events experienced by iron and stony-iron meteorites and their parent bodies.
AB - Allabogdanite, (Fe,Ni)2P, is the only known natural high-pressure phase reported in the Fe–Ni–P system. The mineral, which was previously described from a single meteorite, the Onello iron, is now discovered in the Santa Catharina and Barbianello nickel-rich ataxites. The occurrence of allabogdanite in Santa Catharina, one of the largest and well-studied meteorites, suggests that this mineral is more common than was believed. The formation of allabogdanite-bearing phosphide assemblages in a given meteorite provides evidence that it experienced peak pressure of at least 8 GPa at a temperature above 800 °C. Since the pressure-temperature stability parameters of allabogdanite fall within the margins of the stishovite (rutile-type SiO2) stability area, the former can be employed as a convenient stishovite-grade indicator of significant impact events experienced by iron and stony-iron meteorites and their parent bodies.
UR - http://www.scopus.com/inward/record.url?scp=85060927954&partnerID=8YFLogxK
U2 - 10.1038/s41598-018-37795-x
DO - 10.1038/s41598-018-37795-x
M3 - Article
C2 - 30705334
AN - SCOPUS:85060927954
VL - 9
SP - 1047
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
IS - 1
M1 - 1047
ER -