Phase diagram and thermo-elastic properties of Fe-S compounds up to 15 GPa: Thermodynamic constraints on the core of medium-sized telluric planets

Zhao, Bin; Morard, Guillaume; Boccato, Silvia; Mezouar, Mohamed; Antonangeli, Daniele

doi:10.1016/j.epsl.2024.118676

Earth and Planetary Science Letters

2024

DOI: 10.1016/j.epsl.2024.118676

|View full text |Cite

Phase diagram and thermo-elastic properties of Fe-S compounds up to 15 GPa: Thermodynamic constraints on the core of medium-sized telluric planets

Bin Zhao,

Guillaume Morard,

Silvia Boccato

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Preprint1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

The structure and stability of Fe4+xS3 and its potential to form a Martian inner core

Man,

Li,

Boffa-Ballaran

et al. 2024

Preprint

View full text Add to dashboard Cite

Seismic, geodetic and cosmochemical evidence point to Mars having a sulfur-rich liquid core. Due to the similarity between estimates of the core’s sulfur content and the iron - iron sulfide eutectic composition at core conditions, it has been concluded that temperatures are too high for Mars to have an inner core. Recent low density estimates for the core, however, appear consistent with sulfur contents that are higher than the eutectic composition, leading to the possibility that an inner core could form from a high-pressure iron sulfide phase. Here we report the crystal structure of a phase with the formula Fe4 + xS3, the iron content of which increases with temperature, approaching the stoichiometry Fe5S3 under Martian inner core conditions. We show that Fe4 + xS3 has a higher density than the liquid Martian core and that a Fe4 + xS3 inner core would crystalize if temperatures fall below 1960 (± 105) K at the center of Mars.

show abstract

The structure and stability of Fe4+xS3 and its potential to form a Martian inner core

Man,

Li,

Boffa-Ballaran

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Phase diagram and thermo-elastic properties of Fe-S compounds up to 15 GPa: Thermodynamic constraints on the core of medium-sized telluric planets

Cited by 1 publication

References 58 publications

The structure and stability of Fe4+xS3 and its potential to form a Martian inner core

The structure and stability of Fe4+xS3 and its potential to form a Martian inner core

Contact Info

Product

Resources

About