Table 3.

Oxygen isotopic compositions of individual WL rim minerals from the Vigarano CAI Big Guy, obtained using NanoSIMS.

mineral	spot #	δ18O	2σ	δ17O	2σ	Δ17O	2σ
core
spinel	1	−45.9	1.0	−47.8	2.2	−23.9	3.2
spinel	2	−44.7	1.0	−47.4	2.2	−24.2	3.2
spinel	3	−42.8	2.2	−47.2	5.0	−25.0	7.1
Al,Ti-diopside	4	−23.7	1.9	−27.2	4.4	−14.9	6.4
Al,Ti-diopside	5	−20.7	0.9	−28.0	2.0	−17.2	2.9
Al,Ti-diopside	6	−18.6	1.9	−28.9	4.4	−19.3	6.3
mantle
melilite	15	19.6	0.9	9.7	2.2	−0.5	3.1
melilite	16	15.4	1.0	1.3	2.2	−6.7	3.2
melilite	17	14.1	1.0	0.8	2.2	−6.5	3.2
melilite	18	19.0	0.9	10.2	2.0	0.3	2.9
melilite	19	15.4	1.0	9.2	2.2	1.2	3.1
melilite	20	14.0	1.0	4.0	2.2	−3.2	3.2
melilite	21	0.7	0.9	−9.0	2.0	−9.3	2.9
melilite	22	5.2	1.0	−2.1	2.2	−4.8	3.2
melilite	23	4.6	1.0	−1.7	2.2	−4.1	3.2
melilite	24	−12.8	2.0	−17.3	4.6	−10.7	6.7
melilite	25	0.6	1.0	−9.3	2.2	−9.6	3.2
melilite	26	−22.6	2.1	−33.2	4.7	−21.5	6.8
melilite	28	−19.4	2.0	−28.3	4.7	−18.2	6.8
melilite	29	−19.0	2.0	−29.6	4.7	−19.7	6.7
melilite	31	−18.3	0.9	−23.4	2.0	−13.9	2.9
melilite	32	−2.9	1.0	−9.1	2.2	−7.6	3.2
melilite	33	−6.6	1.9	−17.4	4.4	−13.9	6.3
melilite	34	5.7	0.9	1.1	2.0	−1.9	2.9
melilite	35	4.8	0.9	−4.2	2.0	−6.7	2.9
melilite	36	−5.0	0.9	−11.1	2.0	−8.5	2.9
melilite	37	−0.8	0.9	−7.3	2.0	−6.9	2.9
melilite	38	−9.6	0.9	−15.9	2.0	−10.9	2.8
spinel	27	−37.9	1.0	−40.4	2.4	−20.8	3.4
spinel	30	−38.0	1.0	−41.8	2.4	−22.1	3.4
WL rim
hibonite	39	−50.7	0.9	−49.4	2.1	−23.0	3.0
hibonite	40	−50.7	0.9	−52.0	2.1	−25.7	3.1
spinel	41	−50.7	0.9	−52.0	2.1	−25.7	3.1
spinel	42	−45.7	1.0	−46.8	2.2	−23.0	3.2
spinel	43	−40.8	2.3	−47.5	5.2	−26.3	7.4
melilite	45	−38.7	1.0	−40.1	2.2	−20.0	3.1
anorthite	46	−36.6	0.9	−40.8	2.1	−21.8	3.1
diopside	47	−40.0	0.9	−41.7	2.1	−20.9	3.0
diopside	48	−40.0	0.9	−41.8	2.1	−21.0	3.1
diopside	49	−38.5	1.0	−42.9	2.2	−22.9	3.2