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Table 1 Rare earth element concentrations for the separate points of interest, compared to the reported mean CI chondrite (Lodders 2021) concentration

From: Rare earth element identification and quantification in millimetre-sized Ryugu rock fragments from the Hayabusa2 space mission

  

Mean CI

Point 1

Point 2

Point 3

Point 4

A0055

La

0.24

61.35 (11.30)

18.71 (2.60)

0.97 (0.24)

0.17 (0.05)

Ce

0.63

183.83 (33.42)

59.25 (6.04)

3.29 (1.58)

1.38 (0.30)

Pr

0.10

23.23 (5.29)

6.75 (1.45)

–

–

Nd

0.47

136.27 (21.89)

48.94 (5.07)

2.56 (1.21)

1.50 (0.33)

Sm

0.15

41.86 (5.87)

15.79 (1.82)

1.11 (0.32)

0.45 (0.07)

Eu

0.06

13.98 (3.57)

4.65 (1.22)

–

0.11 (0.05)

Gd

0.21

64.84 (8.03)

26.55 (3.00)

1.85 (0.47)

0.75 (0.13)

Tb

0.04

10.56 (1.96)

3.25 (0.58)

–

–

Dy

0.25

72.52 (8.66)

31.30 (4.54)

2.69 (0.72)

0.61 (0.14)

Ho

0.06

17.68 (3.70)

11.86 (1.70)

5.41 (0.99)

1.34 (0.28)

Er

0.16

39.83 (6.82)

17.23 (3.10)

–

0.16 (0.11)

Yb

0.17

38.62 (5.44)

22.06 (3.27)

–

0.58 (0.09)

C0076

La

0.24

9.46 (1.65)

0.04 (0.03)

0.05 (0.06)

0.86 (0.12)

Ce

0.63

32.53 (5.75)

0.07 (0.04)

0.11 (0.08)

1.39 (0.23)

Pr

0.10

3.23 (0.76)

-

–

–

Nd

0.47

28.58 (5.32)

0.04 (0.03)

0.11 (0.07)

1.32 (0.19)

Sm

0.15

9.37 (1.54)

0.02 (0.01)

0.07 (0.05)

0.58 (0.11)

Eu

0.06

3.02 (0.72)

0.02 (0.02)

0.06 (0.05)

0.60 (0.11)

Gd

0.21

18.76 (2.79)

0.03 (0.02)

0.08 (0.05)

0.95 (0.20)

Tb

0.04

1.94 (0.34)

–

–

–

Dy

0.25

25.46 (5.69)

0.05 (0.02)

0.09 (0.04)

1.29 (0.27)

Ho

0.06

6.21 (1.34)

0.11 (0.03)

0.23 (0.06)

2.94 (0.47)

Er

0.16

16.79 (3.84)

0.03 (0.04)

0.06 (0.09)

0.56 (0.23)

Yb

0.17

20.62 (4.87)

–

–

–

  1. All values are reported in ppm mass, values between brackets indicate the 1-sigma standard error, undetected elements are indicated by a dash (-)