Table 5 Calculation results of tracer element characteristic value and TOC content of sedimentary environment of phosphorite-type rare earth ore.

From: Enrichment process of phosphorite type REY based on the structure and geochemical features of the Zhijin Xinhua phosphorite in China

Sample number

Ni/Co

AU

Sr

(ppm)

Sb

(ppm)

δCe

δEu

U/Th

Co/Ni

Co/Zn

1000

(Sr/Ca)

Al2O3/MgO

SiO2/

Al2O3

TOC (%)

Lithologic characters

GZW-2–1

5.96

7.30

1010.00

5.64

0.36

1.05

2.19

0.17

0.02

3.16

3.40

7.87

0.06

Phosphorus-rich rare earth ore

GZW-2–4

3.41

7.38

1010.00

1.87

0.36

1.01

1.10

0.29

0.08

3.00

0.27

7.69

0.09

GZW-2–5

4.96

5.84

788.13

19.06

0.31

0.93

2.56

0.20

0.01

2.55

0.33

3.59

–

GZW-3–1

4.18

5.28

741.00

3.83

0.34

0.96

2.15

0.24

0.04

2.52

0.05

14.78

0.03

GZW-4–1

4.63

7.85

1020.00

3.12

0.34

0.96

2.27

0.22

0.06

2.97

0.35

2.49

0.01

GZW-5–1

0.58

5.17

417.00

13.5

0.37

1.17

2.96

1.74

0.09

1.72

0.03

33.41

0.04

GZW-5–2

2.73

2.90

490.64

11.91

0.43

0.98

0.75

0.37

0.02

2.27

0.19

6.78

–

GZW-6–1

12.19

4.51

507.00

5.12

0.33

1.17

2.54

0.08

0.02

1.82

0.04

10.66

0.01

GZW-6–2

3.17

4.82

495.55

6.37

0.33

1.06

2.45

0.32

0.02

1.86

0.05

14.59

–

GZW-6–3

5.12

4.39

516.78

9.26

0.32

1.00

2.24

0.20

0.02

1.68

0.03

11.65

–

GZW-6–4

16.88

9.88

930.00

7.38

0.36

1.11

2.50

0.06

0.01

2.71

0.16

7.32

0.02

GZW-6–5

5.12

5.23

401.00

38.8

0.35

1.25

2.39

0.20

0.01

2.98

6.51

38.56

0.11

GZW-6–6

12.32

8.38

768.00

82.7

0.38

1.14

2.49

0.08

0.01

2.94

2.91

19.54

0.12

GZW-6–7

3.21

6.18

772.25

18.04

0.34

1.13

2.61

0.31

0.02

2.37

0.06

17.47

–

GZW-6–8

4.07

5.60

602.45

25.70

0.32

0.98

2.32

0.25

0.02

1.96

0.04

15.63

–

GZW-7–1

6.71

5.78

660.00

3.22

0.36

1.21

3.03

0.15

0.02

2.23

0.06

5.34

0.01

GZW-7–2

4.23

4.07

444.00

3.44

0.37

1.25

2.70

0.24

0.02

1.65

0.03

7.28

0.01

GZW-7–3

18.07

9.42

1060.00

5.64

0.34

0.96

2.79

0.06

0.01

2.93

2.32

5.14

0.05

GZW-7–4

2.35

5.20

478.00

161

0.44

1.38

1.57

0.43

0.03

2.82

7.36

15.85

0.04

GZW-8–1

4.61

4.62

323.00

12.2

0.37

1.40

2.49

0.22

0.03

2.74

4.11

103.82

0.03

GZW-8–2

5.95

8.65

724.00

8.21

0.40

1.29

3.49

0.17

0.01

3.06

3.09

30.71

0.09

GZW-2–2

0.53

3.18

239.86

6.07

0.38

0.96

2.10

1.88

0.05

0.94

0.11

11.11

–

Phosphorus rare earth ore

GZW-2–3

2.47

1.07

184.00

4.08

0.34

0.97

1.23

0.40

0.05

0.81

0.03

27.30

0.01

GZW-3–2

3.96

2.61

375.00

11.2

0.32

0.93

2.15

0.25

0.03

1.50

0.02

24.66

0.01

GZW-4–2

5.46

1.86

321.00

2.01

0.33

0.94

1.73

0.18

0.02

1.30

0.03

15.66

0.02

GZW-8–3

1.86

1.53

125.00

4.42

0.38

0.92

2.46

0.54

0.01

0.62

0.04

16.01

0.01

  1. δEu = 2(EuN)/(SmN + GdN). δCe=2(CeN)/(LaN+PrN). The subscript N represents the PAAS normalized value50.
  2. "–" indicates not tested.
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