Below are some of my current and recent research projects.

Moon

Metal stable isotope evidence for the lunar origin and differentiation

I combined Ca and Mg stable isotope analysis for Apollo samples to probe the bulk Moon isotopic compositions and illuminate the timeline of lunar differentiation based on key samples (Fu et al. 2023, Communications Earth & Environment).

Refractory element evidence for Earth–Moon formation

I develpoed the application of refratory element compositions (Ca, Al, REEs, etc.) as a critical avenue to undertanding Moon formation mechanisms. In a recent study, We found that the bulk silicate Earth and Moon likely share nearly identical refractory element compositions, suggesting the need for a thorouly mixed proto-lunar disk (Fu & Jacobsen 2024, EPSL).

By intergrating pre-impact body chemical differentiation and giant-impact driven sampling for the first time, we further found that canonical giant-impact models are difficult to reproduce the observed Earth-Moon composition similarity (Fu & Jacobsen 2025, EPSL). This inconsistency supports a high-energy giant-impact lunar origin.

Sulfur geochemical systematics for lunar disk evolution

I leveraged sulfur systematics—powerful tracers of high-temperature processes—to distinguish competing Moon-formation models and constrain the compositional and thermal evolution of the proto-lunar disk (Fu & Dottin, under review).

Mars

Sulfur isotopic inisghts into early Martian magma ocean processes

I contribute to studies exploring the link between observed sulfur isotopic anomalies in Martian meteorites and magma ocean-atmpsphere exchange on early Mars (Patil, Dottin, Fu et al., in revision).

Earth

Paleomagnetic constraints on true polar wander evolution

Using new paleomagnetic and geochronological results from the South China Block in the Neoproterozoic, I explored how these data reveal a newly identified fast true polar wander event. I also studied how true polar wander may have evolved over the past billion years, potentially linking to mantle thermal transitions across supercontinent cycles (Fu et al. 2022, Science Advances).

Stable and radiogenic Ca isotopes for magma evolution and contamination

Using high-precision Ca isotopic measurements with Nu-Sapphire collion-cell MC-ICP-MS (~20 ppm internal precision), I demonstrated that stable Ca isotope fractionation is a robust tracer of magma differentiation, with a case study from the Oslo Rift, Norway (Fu et al. 2022, EPSL).

We are also exploring the radiogenic ⁴⁰Ca system (from ⁴⁰K decay) for dating ignesous rocks and resolving crustal contamination during magma crystallization.