C. K. Shearer

About

C. K. Shearer is a leading figure in planetary science, whose career has been defined by a deep and enduring focus on the magmatic evolution of terrestrial bodies, particularly the Moon. His research masterfully bridges the gap between small-scale geochemical analysis of returned samples and large-scale planetary processes. Shearer’s major contributions include pioneering a new conceptual framework for understanding post-differentiation magmatism, as detailed in his highly cited 2023 work (42 citations), which challenges long-held views on how planetary crusts evolve after initial formation. He is also renowned for his work on lunar petrology, having demonstrated through studies of samples from the Luna 20 mission (15 citations) that spinel-bearing lithologies have multiple, shallow crustal origins, reshaping our understanding of the Moon’s impact history and crustal structure. With over 20 years of influence, his 2006 paper on the immense scientific value of small lunar samples (24 citations) has become a foundational reference, guiding sample-return strategies for missions like Chang’e-5 and Artemis. Shearer’s work is a masterclass in extracting profound planetary insights from minuscule geological evidence.

Research Focus

Key Achievements

Top Papers

1. 1
   Magmatic Evolution II: A New View of Post-Differentiation Magmatism

   42 citations · 2023
2. 2
   Big returns on small samples: Lessons learned from the analysis of small lunar samples and implications for the future scientific exploration of the Moon

   24 citations · 2006
3. 3
   Multiple Shallow Crustal Origins for Spinel‐Bearing Lithologies on the Moon: A Perspective From the Luna 20 Mission

   15 citations · 2022

Key Collaborators

Contact & Links