Jiaodingshan

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Location - China

Age (of protore) - Ordovician: 444 Ma

Original size - 1.26 million tonnes of Mn

References

Fan, D-L., Hein, J.R., and Ye, J., 1999, Ordovician reef-hosted Jiaodingshan Mn-Co deposit and Dawashan Mn deposit, Sichuan Province, China: Ore Geology Reviews, v. 15, p. 135-151.

major elements - trace elements - rare-earth elements - REE normalized - isotopes

Major Elements, oxide percent

MnO

Fe₂O_3t

SiO₂

Al₂0₃

CaO

MgO

K₂O

Na₂O

TiO₂

P₂0₅

LOI

TOC

Average

Mn ore

45.8

3.3

15.0

1.93

6.60

3.02

0.48

0.11

0.06

0.33

22.6

J-4a

rhodochrosite ore

66.7

1.81

16.1

0.64

0.97

0.45

0.01

0.26

13.3

J-4b

rhodochrosite ore

55.4

1.95

18.4

1.00

1.29

0.51

0.01

0.26

20.1

J-9a

rhodochrosite ore

41.8

1.57

4.44

0.25

7.36

6.80

0.02

0.57

34.0

J-16

rhodochrosite ore

41.4

1.64

18.0

0.69

15.4

0.50

0.01

0.02

0.01

0.32

21.2

J-6a

Ca-Mg-rhodochrosite ore

23.8

9.41

17.9

7.08

7.99

6.85

1.41

0.40

0.19

0.22

24.5

J-3

shale

7.49

11.0

42.1

15.0

3.37

3.51

5.67

0.29

0.66

0.27

10.7

J-5

Mn-dolostone

6.44

10.8

16.3

4.65

17.6

6.91

1.87

0.13

0.17

0.23

33.4

J-10

Mn-dolostone

6.17

9.13

11.0

2.95

20.3

9.07

1.10

0.10

0.07

0.20

J-11

limestone

2.12

14.0

13.0

0.88

29.3

1.70

0.18

0.22

0.02

0.57

J-1

limestone

1.88

1.47

9.21

2.43

41.6

1.00

1.26

0.17

0.09

0.05

J-13

shale

0.36

3.59

49.0

9.86

6.53

2.32

3.37

0.39

0.46

0.22

23.7

12.8

J-15

Fe-sandstone

0.32

23.7

50.9

5.27

3.02

0.31

2.03

0.64

0.31

0.17

13.0

Trace elements, ppm
	%	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm	ppm
	MnO	Ba	Cd	Co	Cr	Cu	Mo	Nb	Ni	Pb	Rb	Sn	Sr	Th	U	V	Y	Zn	Zr
avg high Mn carb	35.0	6022		213	846	29	1		331	145		4.74	392			77		103
J-4a	66.7	7802		218	523	77	2.28		291	260		7.10	206			90		177
J-4b	55.4	6629		158	422	20.3	1.06		274	199		5.91	276			65		38.5
J-9a	41.8	11579		335	108	34.3	1.45		178	43		0.87	910			135		7.76
J-16	41.4	1426		130	2961	13.3	0.63		233	123		3.78	262			48		78.1
J-6a	23.8	2673		222	218	1.64	1.20		681	100		6.06	307			45		213
J-3	7.49	3951		246	147	3.56	1.19		538	106		5.71	189			70		169
J-5	6.44	4420		1820	186	289	0.83		987	297		3.82	863			573		24.3
J-10	6.17	693		1811	99.1	24.5	0.75		155	43		3.58	423			102		12.7
J-11	2.12	509		460	102	64.3	0.99		433	132		2.75	449			43		-2
J-1	1.88	560		27.3	46.8	7.64	0.18		47	29		0.90	254			16		72.8
J-13	0.36	1839		790	191	162	3.76		715	95		2.50	205			2968		11331
J-15	0.32	813		287	47.9	13.9	3.11		272	684		4.23	139			41		17

blank or nr = not reported; bd = below detection

Rare-earth elements, ppm

Rare-earth elements,

normalized to chondritic values of Taylor & McLennan (1992)

Isotopes
Sample	lithology	δ³⁴S ore, sulfide	%S host	δ³⁴S host, sulfide	δ¹³C pdb	δ¹⁸O pdb	δ¹⁸O smow	MnO %	CaO %	⁸⁷Sr/⁸⁶Sr
avg	Mn ore				-10.7	-9.60	21.0	45.8	6.60
J-4a	Rhodochrosite ore				-11.4	-11.3	19.2	66.7	0.97
J-4b	Rhodochrosite ore				-11.3	-10.4	20.1	55.4	1.29
J-9a	Rhodochrosite ore				-7.8	-6.90	23.7	41.8	7.36
J-16	Rhodochrosite ore				-14.0	-9.90	20.7	41.4	15.4
J-6	Ca-rhodochrosite ore				-8.9	-9.50	21.1	23.8	7.99
J-5	Mn-dolostone				-5.7	-11.3	19.2	6.44	17.6
J-10	Mn-dolostone				-7.0	-5.90	24.8	6.30	20.6
J-llb	Limestone				-4.3	-9.40	21.2	2.12	29.3
J-l	Limestone				0.2	-9.50	21.1	1.88	41.6