Chondrules reveal large-scale outward transport of inner Solar System materials in the protoplanetary disk.

ABSTRACT: Dynamic models of the protoplanetary disk indicate there should be large-scale material transport in and out of the inner Solar System, but direct evidence for such transport is scarce. Here we show that the ε⁵⁰Ti-ε⁵⁴Cr-Δ¹⁷O systematics of large individual chondrules, which typically formed 2 to 3 My after the formation of the first solids in the Solar System, indicate certain meteorites (CV and CK chondrites) that formed in the outer Solar System accreted an assortment of both inner and outer Solar System materials, as well as material previously unidentified through the analysis of bulk meteorites. Mixing with primordial refractory components reveals a "missing reservoir" that bridges the gap between inner and outer Solar System materials. We also observe

SUBMITTER: Williams CD 

PROVIDER: S-EPMC7519341 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature