Formation of rims around chondrules via porous aggregate accretion
收藏DataCite Commons2023-09-15 更新2025-04-16 收录
下载链接：
https://dataverse.jpl.nasa.gov/citation?persistentId=doi:10.48577/jpl.J0XEPG
下载链接
链接失效反馈官方服务：
资源简介：
Chondrules are often surrounded by fine-grained rims or igneous rims. The properties of these 19 rims reflect their formation histories. While the formation of fine-grained rims is modeled by 20 the accretion of dust grains onto chondrules, the accretion should be followed by the growth of 21 dust grains due to the shorter growth timescale than the accretion. In this paper, we investigate 22 the formation of rims, taking into account the growth of porous dust aggregates. We estimate the 23 rim thickness as a function of the chondrule fraction at a time when dust aggregate accretion onto 24 chondrules is switched to collisions between these chondrules. Our estimations are consistent 25 with the measured thicknesses of fine-grained rims in ordinary chondrites. However, those of 26 igneous rims are thicker than our estimations. The thickness of igneous rims would be enlarged 27 in remelting events.
提供机构：
Root
创建时间：
2023-09-15
