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. Author manuscript; available in PMC: 2020 Apr 3.
Published in final edited form as: Geochim Cosmochim Acta. 2019 Jun 22;260:133–160. doi: 10.1016/j.gca.2019.06.023

Fig. 2.

Fig. 2.

Backscattered electron images of QUE 99177 (Q-designation) and MET 00426 (M-designation) chondrules studied for their Al-Mg isotope systematics. Scale bars are 200 μm. All chondrules are FeO-poor; Q7, Q16, Q19, Q35, Q38, Q44, M6, and M23 are type I porphyritic olivine-pyroxene (POP: 20–80% modal olivine, when considering only olivine and pyroxene); M3 is type I porphyritic pyroxene (PP: <20% modal olivine); Q13 and Q36 are type I compound chondrules, each with barred olivine (BO) and POP features; Q15 is a layered chondrule that is type I POP textured with smaller chondrules along the periphery (white arrows).