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Table of contents
1 State of the art
1.1 From the nebula to the Asteroid Belt
1.2 Meteorites, messengers from the early Solar System
1.3 General approach on interconnection thresholds and dihedral angles in twophases systems
1.4 Metal-silicate differentiation and small bodies evolution
1.5 Thesis outline
2 Methods
2.1 Description of the experimental system
2.2 Experimental setups
2.3 Analytical techniques
2.4 MELTS thermodynamic modeling
3 Metal segregation in planetesimals: Constraints from experimentally determine interfacial energies
3.1 Introduction
3.2 Experimental setup
3.3 Dihedral angle measurement
3.4 Determination of interfacial energies and consequences on phase relations
3.5 Metal-silicate differentiation in early accreted planetesimals
3.6 Conclusion
4 A 3D X-ray microtomography reevaluation of metal interconnectivity in a partially molten silicate matrix
4.1 Introduction
4.2 Experimental setup
4.3 Results
4.4 Discussion
4.5 Conclusion
5 Magma oceans in early-accreted small bodies and Pallasite formation
5.1 Introduction
5.2 Magma ocean modeling
5.3 Equilibrium magma ocean
5.4 Implications for differentiation
5.5 Conclusion
6 A petrographic analysis of primitive achondrites
6.1 Introduction
6.2 Methods
6.3 Petrographic features
6.4 Thermometry and calculation of oxygen fugacity
6.5 Formation conditions of primitive achondrites
6.6 Conclusion
7 Conclusions et perspectives
8 Conclusions and future prospects
