Line

Average layer depth (m)

Density

(g/cm3)

Magnetic susceptibility (SI)

Magnetization

(A/m)

Magnetic declination (deg)

Magnetic inclination (deg)

Description

Line 1 Nevado

−3300

2.40

5.53E−05

6.49

−68

−49

Mixed volcanic deposits

−2300

2.70

2.14E−05

2.53

−53

30

Volcanic deposits

−1500

2.75

2.33E−05

0.64

−55

−96

Volcanic deposits

−1200

2.40

5.15E−05

3.96

−55

−19

Volcanic chimney

1800

2.36

-

-

-

-

Upper magma chamber

6000

2.30

-

-

-

-

Lower magma chamber

2500

2.75

1.90E−06

1.58

−51

3

Limestones

12000

2.80

-

-

-

-

Volcanic basement?

Line 2

Fuego

−3000

2.55

6.92E−06

0.32

59

−26

Mixed volcanic deposits

−3000

2.58

-

-

-

-

Active volcanic chimney

−1500

2.65

2.77E−05

10.28

−10

5

Volcanic deposits

1250

2.30

-

-

-

-

Magma chamber

2800

2.75

6.92E−06

1.73

−48

5

Limestones

13000

2.80

-

-

-

-

Volcanic basement?

Line 3 Escondida

−1600

2.55

9.99E−06

3.01

33

45

Avalanche deposits

−1000

2.55

4.27E−05

1.74

41

50

Mixed volcanic deposits

−500

2.75

1.01E−05

8.86

0

−1

Limestones

2200

2.78

1.01E−05

-

-

-

Cooling magma body?

8000

2.36

-

-

-

-

Molten magma?

11500

2.80

-

-

-

-

Volcanic basement?

Line 4 SMB

−980

2.55

6.91E−05

1.48

−45

122

Avalanche deposits

−450

2.75

6.28E−05

3.01

43

61

Limestones

2000

2.36

-

-

-

-

Molten magma?

5000

2.75

6.28E−05

2.85

−2

10

Limestones

8000

2.80

-

-

-

-

Volcanic basement?

Body at x = 17.5 km

1350

2.50

3.77E−05

2.53

73

52

?

Line 0 Base line

−2600

2.55

4.41E−06

3.01

−27

−26

Mixed volcanic deposits