There’s also a mid-month Geochimica Et Cosmochimica Acta– 15 April (vol. 395):
Krot, A. N. Nagashima, K. Dunn, T. L. et al. Oxygen and aluminum-magnesium isotope systematics of the metasomatically altered coarse-grained igneous calcium-aluminum rich from CK3.7-3.8 carbonaceous chondrites Pgs. 77 .2025.01.027
Carbonaceous chondrites are meteorites (and their parent asteroids, presumably) from the outer Solar System- their makeup indicates a formation region cooler than the inner Solar System. But unlike the CM and CI carbonaceous chondrites, the CK group shows signs of heating (the “3.8” in CK3.8), and depletion of volatiles. CK meteorites are thus water-poor. What, then, can we deduce of the CKs: directly, and comparatively (versus the CIs and CMs)?
The Solar System’s ‘birthday’ is held to be the formation (condensation) of CAIs- calcium-aluminum rich inclusions. We call these refractory minerals the first solids in the nebula that would be the Solar System, and CAIs are found in many chondrite meteorites (meteorites that have not melted, erasing the inclusions). Oxygen, aluminum, and magnesium are key tracers of history, both in CAIs and refractory minerals in general. Krot et al. look at O, Al, and Mg isotope levels for signs of that CK history.