Fig 3.jpg

Fig. 3. Backscattered electron images of type II and opaque mineral-bearing porphyritic chondrules after Si isotope analysis. Laser spots are shown in white color. Similar to Fig. 1, δ30Si of each chondrule is shown by a different color, to match with the data in following figures and light blue colored values near the laser ablation spots correspond to the distance from rim to core. The boxes around the δ30Si values for identification of the major analysed phase are such as, yellow box = forsterite, red = mesostasis, green = pyroxene, and pink = rim. Dashed red color boxes are for mesostasis-rich mix analyses. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)