Authigenic carbonate precipitation at the end-Guadalupian (Middle Permian) in China: Implications for the carbon cycle in ancient anoxic oceans

Saitoh, Masafumi; Ueno, Yuichiro; Isozaki, Yukio; Shibuya, Takazo; Yao, Jianxin; Ji, Zhansheng; Shozugawa, Katsumi; Matsuo, Motoyuki; Yoshida, Naohiro

doi:10.1186/s40645-015-0073-2

Progress in Earth and Planetary Science

Table 5 Results of carbon and oxygen isotope analyses

From: Authigenic carbonate precipitation at the end-Guadalupian (Middle Permian) in China: Implications for the carbon cycle in ancient anoxic oceans

Unit/Fm	Sample ID	Type	Thickness (m)	δ¹³C_VPDB	δ¹⁸O_VPDB
Mudstone Unit of the Maokou Fm	E83-41	bundled calcite	10.54	−2.5	−9.2
Mudstone Unit of the Maokou Fm	E83-40	bundled calcite	10.54	−2.4	−4.5
Mudstone Unit of the Maokou Fm	E83-39	bundled calcite	10.54	−3.0	−8.9
Mudstone Unit of the Maokou Fm	E83-38	bundled calcite	10.54	−2.1	−4.6
Mudstone Unit of the Maokou Fm	E83-37	bundled calcite	10.53	−1.7	−9.3
Mudstone Unit of the Maokou Fm	E83-36	bundled calcite	10.53	−2.4	−5.7
Mudstone Unit of the Maokou Fm	E83-35	bundled calcite	10.53	−1.6	−10.7
Mudstone Unit of the Maokou Fm	E83-34	bundled calcite	10.53	−2.1	−10.6
Mudstone Unit of the Maokou Fm	E83-33	bundled calcite	10.53	−2.0	−7.8
Mudstone Unit of the Maokou Fm	E83-32	bundled calcite	10.52	−2.1	−4.1
Mudstone Unit of the Maokou Fm	E83-31	bundled calcite	10.52	−1.8	−9.3
Mudstone Unit of the Maokou Fm	E83-30	bundled calcite	10.52	−1.8	−10.3
Mudstone Unit of the Maokou Fm	E83-29	bundled calcite	10.52	−0.8	−5.4
Mudstone Unit of the Maokou Fm	E83-28	bundled calcite	10.52	−0.4	−7.9
Mudstone Unit of the Maokou Fm	E83-27	bundled calcite	10.51	0.0	−5.5
Mudstone Unit of the Maokou Fm	E83-26	bundled calcite	10.51	−0.5	−7.2
Mudstone Unit of the Maokou Fm	E83-25	bundled calcite	10.51	−0.6	−8.1
Mudstone Unit of the Maokou Fm	E83-24	bundled calcite	10.51	−0.3	−4.4
Mudstone Unit of the Maokou Fm	E83-23	bundled calcite	10.51	−0.6	−5.9
Mudstone Unit of the Maokou Fm	E83-22	bundled calcite	10.50	−0.6	−6.2
Mudstone Unit of the Maokou Fm	E83-21	bundled calcite	10.50	−0.9	−5.3
Mudstone Unit of the Maokou Fm	E83-20	bundled calcite	10.50	−0.7	−10.0
Mudstone Unit of the Maokou Fm	E83-19	bundled calcite	10.50	−0.9	−10.3
Mudstone Unit of the Maokou Fm	E83-18	bundled calcite	10.50	−0.7	−5.9
Mudstone Unit of the Maokou Fm	E83-17	bundled calcite	10.49	−0.7	−5.4
Mudstone Unit of the Maokou Fm	E83-16	packed calcite	10.49	−8.7	−8.4
Mudstone Unit of the Maokou Fm	E83-15	packed calcite	10.49	−9.5	−7.9
Mudstone Unit of the Maokou Fm	E83-14	packed calcite	10.49	−9.1	−6.9
Mudstone Unit of the Maokou Fm	E83-13	packed calcite	10.49	−10.6	−8.3
Mudstone Unit of the Maokou Fm	E83-12	packed calcite	10.48	−7.5	−8.5
Mudstone Unit of the Maokou Fm	E83-11	packed calcite	10.48	−11.7	−10.4
Mudstone Unit of the Maokou Fm	E83-10	packed calcite	10.48	−10.2	−9.4
Mudstone Unit of the Maokou Fm	E83-9	bundled calcite	10.48	−0.1	−6.8
Mudstone Unit of the Maokou Fm	E83-8	bundled calcite	10.48	−0.7	−5.7
Mudstone Unit of the Maokou Fm	E83-7	bundled calcite	10.47	−0.4	−4.4
Mudstone Unit of the Maokou Fm	E83-6	bundled calcite	10.47	−0.1	−4.5
Mudstone Unit of the Maokou Fm	E83-5	bundled calcite	10.47	−0.1	−7.0
Mudstone Unit of the Maokou Fm	E83-4	bundled calcite	10.47	−0.4	−4.1
Mudstone Unit of the Maokou Fm	E83-3	bundled calcite	10.47	−0.3	−4.2
Mudstone Unit of the Maokou Fm	E83-2	bundled calcite	10.46	−0.2	−5.3
Mudstone Unit of the Maokou Fm	E83-1	bundled calcite	10.46	−1.4	−7.4
Mudstone Unit of the Maokou Fm	E65-7	bundled calcite	10.11	−0.9	−3.3
Mudstone Unit of the Maokou Fm	E65-6	bundled calcite	10.11	−1.0	−3.7
Mudstone Unit of the Maokou Fm	E65-5	bundled calcite	10.11	−1.1	−3.9
Mudstone Unit of the Maokou Fm	E65-4	packed calcite	10.10	−9.6	−6.1
Mudstone Unit of the Maokou Fm	E65-3	packed calcite	10.10	−8.7	−4.9
Mudstone Unit of the Maokou Fm	E65-2	packed calcite	10.10	−9.1	−5.6
Mudstone Unit of the Maokou Fm	E65-1	packed calcite	10.10	−9.6	−6.1
Mudstone Unit of the Maokou Fm	E54	bundled calcite	9.73	-6.7	−8.8
Mudstone Unit of the Maokou Fm	E31-7	randomly oriented calcite	9.02	−0.3	−7.7
Mudstone Unit of the Maokou Fm	E31-6	randomly oriented calcite	9.01	−0.5	−6.4
Mudstone Unit of the Maokou Fm	E31-5	randomly oriented calcite	9.00	−0.6	−4.7
Mudstone Unit of the Maokou Fm	E31-4	randomly oriented calcite	8.99	−0.7	−8.1
Mudstone Unit of the Maokou Fm	E31-3	randomly oriented calcite	8.98	−0.7	−4.7
Mudstone Unit of the Maokou Fm	E31-2	randomly oriented calcite	8.97	−0.7	−4.9
Mudstone Unit of the Maokou Fm	E31-1	randomly oriented calcite	8.96	−0.6	−5.4
Mudstone Unit of the Maokou Fm	E23R14	bundled calcite	8.75	−1.4	−8.8
Mudstone Unit of the Maokou Fm	E23R13	bundled calcite	8.75	−1.2	−8.4
Mudstone Unit of the Maokou Fm	E23R12	bundled calcite	8.75	−0.4	−7.7
Mudstone Unit of the Maokou Fm	E23R11	bundled calcite	8.74	−0.9	−10.5
Mudstone Unit of the Maokou Fm	E23R10	bundled calcite	8.74	−1.3	−11.4
Mudstone Unit of the Maokou Fm	E23R9	bundled calcite	8.74	−0.3	−14.2
Mudstone Unit of the Maokou Fm	E23R8	bundled calcite	8.74	−0.1	−10.1
Mudstone Unit of the Maokou Fm	E23R7	bundled calcite	8.74	−0.6	−12.3
Mudstone Unit of the Maokou Fm	E23R6	bundled calcite	8.73	−0.8	−7.3
Mudstone Unit of the Maokou Fm	E23R5	randomly oriented calcite	8.73	−1.4	−7.9
Mudstone Unit of the Maokou Fm	E23R4	randomly oriented calcite	8.73	−0.7	−5.6
Mudstone Unit of the Maokou Fm	E23R3	randomly oriented calcite	8.73	−1.0	−5.7
Mudstone Unit of the Maokou Fm	E23R2	randomly oriented calcite	8.73	−0.8	−8.8
Mudstone Unit of the Maokou Fm	E23R1	randomly oriented calcite	8.72	−0.7	−7.3
Mudstone Unit of the Maokou Fm	E1-10	randomly oriented calcite	8.32	−1.7	−4.5
Mudstone Unit of the Maokou Fm	E1-9	randomly oriented calcite	8.31	−1.3	−4.9
Mudstone Unit of the Maokou Fm	E1-8	randomly oriented calcite	8.31	−1.4	−9.3
Mudstone Unit of the Maokou Fm	E1-7	randomly oriented calcite	8.31	−1.3	−7.7
Mudstone Unit of the Maokou Fm	E1-6	randomly oriented calcite	8.31	−0.8	−4.9
Mudstone Unit of the Maokou Fm	E1-5	randomly oriented calcite	8.30	−0.6	−13.8
Mudstone Unit of the Maokou Fm	E1-4	randomly oriented calcite	8.30	−0.6	−6.1
Mudstone Unit of the Maokou Fm	E1-3	randomly oriented calcite	8.30	−0.9	−6.3
Mudstone Unit of the Maokou Fm	E1-2	randomly oriented calcite	8.29	−1.2	−8.3
Mudstone Unit of the Maokou Fm	E1-1	randomly oriented calcite	8.29	−1.4	−8.3
Mudstone Unit of the Maokou Fm	D120-4	packed calcite	8.17	−6.3	−6.4
Mudstone Unit of the Maokou Fm	D120-3	packed calcite	8.17	−5.9	−6.4
Mudstone Unit of the Maokou Fm	D120-2	packed calcite	8.16	−5.1	−7.1
Mudstone Unit of the Maokou Fm	D120-1	randomly oriented calcite	8.16	−0.6	−4.9
Mudstone Unit of the Maokou Fm	D98	randomly oriented calcite	7.41	0.7	−4.8
Mudstone Unit of the Maokou Fm	D84.5	randomly oriented calcite	6.95	0.3	−10.0
Mudstone Unit of the Maokou Fm	D70.6	bundled calcite	6.39	0.0	−6.6
Mudstone Unit of the Maokou Fm	D70.5	randomly oriented calcite	6.38	0.8	−3.5
Mudstone Unit of the Maokou Fm	D60-4	randomly oriented calcite	6.14	0.0	−6.0
Mudstone Unit of the Maokou Fm	D60-3	randomly oriented calcite	6.13	0.6	−9.9
Mudstone Unit of the Maokou Fm	D60-2	randomly oriented calcite	6.13	0.8	−7.7
Mudstone Unit of the Maokou Fm	D60-1	randomly oriented calcite	6.12	0.2	−8.0
Mudstone Unit of the Maokou Fm	D22-2	randomly oriented calcite	4.50	−6.6	−6.8
Mudstone Unit of the Maokou Fm	D22-1	randomly oriented calcite	4.49	−6.6	–5.7
Mudstone Unit of the Maokou Fm	C54-4	bundled calcite	2.95	1.7	−10.3
Mudstone Unit of the Maokou Fm	C54-3	bundled calcite	2.94	2.3	−4.2
Mudstone Unit of the Maokou Fm	C54-2	bundled calcite	2.94	2.4	−4.6
Mudstone Unit of the Maokou Fm	C54-1	bundled calcite	2.94	2.6	−3.5
Mudstone Unit of the Maokou Fm	C43	bundled calcite	2.62	1.3	−11.6
Mudstone Unit of the Maokou Fm	C28-5	bundled calcite	2.09	1.4	−10.5
Mudstone Unit of the Maokou Fm	C28-4	bundled calcite	2.09	1.6	−4.8
Mudstone Unit of the Maokou Fm	C28-3	bundled calcite	2.09	1.9	−4.8
Mudstone Unit of the Maokou Fm	C28-2	bundled calcite	2.09	2.3	−3.5
Mudstone Unit of the Maokou Fm	C28-1	bundled calcite	2.09	1.8	−4.2
Mudstone Unit of the Maokou Fm	C9-4	randomly oriented calcite	1.64	−5.8	−8.6
Mudstone Unit of the Maokou Fm	C9-3	randomly oriented calcite	1.63	−4.3	−6.4
Mudstone Unit of the Maokou Fm	C9-2	randomly oriented calcite	1.62	−6.2	−6.2
Mudstone Unit of the Maokou Fm	C9-1	randomly oriented calcite	1.61	−6.3	−6.2
Mudstone Unit of the Maokou Fm	B27	randomly oriented calcite	1.37	0.3	−4.3
Mudstone Unit of the Maokou Fm	B18-5	randomly oriented calcite	1.07	1.6	−4.4
Mudstone Unit of the Maokou Fm	B18-4	randomly oriented calcite	1.07	1.5	−9.9
Mudstone Unit of the Maokou Fm	B18-3	randomly oriented calcite	1.07	1.6	−9.1
Mudstone Unit of the Maokou Fm	B18-2	randomly oriented calcite	1.07	1.3	−6.2
Mudstone Unit of the Maokou Fm	B18-1	randomly oriented calcite	1.07	1.4	−6.5
Mudstone Unit of the Maokou Fm	B16-8	randomly oriented calcite	1.06	1.0	−4.5
Mudstone Unit of the Maokou Fm	B16-7	randomly oriented calcite	1.06	1.0	−4.7
Mudstone Unit of the Maokou Fm	B16-6	randomly oriented calcite	1.05	1.0	−4.5
Mudstone Unit of the Maokou Fm	B16-5	randomly oriented calcite	1.05	0.8	−4.6
Mudstone Unit of the Maokou Fm	B16-4	randomly oriented calcite	1.04	0.7	−4.7
Mudstone Unit of the Maokou Fm	B16-3	randomly oriented calcite	1.04	0.7	−8.0
Mudstone Unit of the Maokou Fm	B16-2	randomly oriented calcite	1.03	0.6	−9.0
Mudstone Unit of the Maokou Fm	B16-1	randomly oriented calcite	1.03	0.6	−8.2

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