Chondrules reveal large-scale outward transport of inner Solar System materials in the protoplanetary disk
C. D. Williams, M. E. Sanborn, C. Defouilloy, Qing‐Zhu Yin, N. T. Kita, D. S. Ebel, Akane Yamakawa, Katsuyuki Yamashita
Abstract
Significance We present a coordinated petrologic, mineral chemistry, and multi-isotopic investigation of individual chondrules to further elucidate the origins and formation histories of planetary materials. We show chondrules from certain meteorites that accreted in the outer Solar System contain an assortment of both inner and outer Solar System material, as well as previously unidentified material. The outward transport of inner Solar System material places important constraints on dynamical models, as outward transport in the disk was thought possible only if significant barriers (e.g., Jupiter) to radial transport of materials do not exist. We show this “barrier” is either not completely impermeable to transport of millimeter-sized materials or additional mechanisms are required to transport materials to the outer Solar System.