Skip to main content
Earth, Planets and Space

Table 2 Whole-rock geochemistry of the studied volcanic rock samples from the Irabu knolls of the Okinawa Trough; 6K#562R1, 6K#569R4-1, 6K#569R4-2, and 6K#569R4-3

From: Seafloor hydrothermal alteration affecting magnetic properties of abyssal basaltic rocks: insights from back-arc lavas of the Okinawa Trough

Sample name

SiO2

TiO2

Al2O3

Fe2O3*

MnO

MgO

CaO

Na2O

K2O

P2O5

Total

H2O– (%)

LOI** (%)

6K#562R1

52.1

0.65

18.3

10.0

0.16

4.2

11.2

2.15

0.33

0.09

99.2

0.51

0.35

6K#569R4-1

53.9

0.78

17.7

10.7

0.28

5.0

7.1

2.18

0.12

0.11

97.9

4.24

3.65

6K#569R4-2

54.9

0.74

17.9

9.9

0.17

3.4

9.4

2.61

0.64

0.11

99.7

0.57

− 0.07

6K#569R4-3

54.8

0.79

17.9

10.1

0.18

3.4

7.9

2.86

0.54

0.11

98.6

1.96

2.69

  1. *Total Fe measured as Fe2O3
  2. **Loss on ignition
Back to article page