Table 4 Thermal properties of the LHVC

Post-caldera group

 Pyroclastics, undifferentiated

0.48/0.50 (4) ± 0.04

Q1: 0.44, Q3: 0.51

1.00/1.01 (4) ± 0.05

Q1: 0.95, Q3: 1.03

0.37/0.37 (4) ± 0.02

Q1: 0.35, Q3: 0.39

0.89/0.89 (4) ± 0.05

Q1: 0.85, Q3: 0.94

 Basalts

0.90/0.92 (33) ± 0.12

Q1: 0.81, Q3: 0.98

CV: 13.77%

1.33/1.32 (33) ± 0.20

Q1: 1.19, Q3: 1.36

CV: 14.94%

0.54/0.54 (29) ± 0.05

Q1: 0.51, Q3: 0.57

CV: 8.94%

0.88/0.85 (29) ± 0.17

Q1: 0.78, Q3: 0.96

CV: 19.13%

 Ash fall deposits

0.39/0.32 (6) ± 0.18

Q1: 0.58, Q3: 0.44

CV: 47.40%

1.16/1.09 (6) ± 0.21

Q1: 1.04, Q3: 1.22

CV: 18.61%

0.37/0.37 (5) ± 0.01

Q1: 0.36, Q3: 0.38

0.41/0.40 (5) ± 0.02

Q1: 0.39, Q3: 0.44

CV: 5.97%

Caldera group

 Zaragoza ignimbrite

0.64/0.64 (34) ± 0.09

Q1: 0.58, Q3: 0.70

CV: 14.10%

1.31/1.28 (26) ± 0.18

Q1: 1.19, Q3: 1.39

CV: 13.88%

0.52/0.51 (32) ± 0.04

Q1: 0.50, Q3: 0.55

CV: 7.24%

0.95/0.91 (24) ± 0.20

Q1: 0.77, Q3: 1.12

CV: 21.57%

 Xáltipan ignimbrite total

0.51/0.40 (120) ± 0.41

Q1: 0.30, Q3: 0.54

CV: 79.40%

1.19/1.26 (84) ± 0.34

Q1: 0.99, Q3: 1.40

CV: 28.56%

0.48/0.47 (117) ± 0.22

Q1: 0.34, Q3: 0.50

CV: 46.12%

0.76/0.66 (81) ± 0.23

Q1: 0.60, Q3: 0.90

CV: 30.53%

  Xáltipan ig. (unaltered)

0.44/0.41 (98) ± 0.18

Q1: 0.33, Q3: 0.53

CV: 40.30%

1.19/1.24 (73) ± 0.25

Q1: 1.01, Q3: 1.39

CV: 21.04%

0.43/0.48 (90) ± 0.10

Q1: 0.33, Q3: 0.50

CV: 22.58%

0.71/0.66 (70) ± 0.15

Q1: 0.60, Q3: 0.87

CV: 21.21%

  Xáltipan ig. (pumice)

0.17/0.18 (13) ± 0.03

Q1: 0.15, Q3: 0.19

CV: 15.99%

0.47/0.45 (5) ± 0.06

Q1: 0.43, Q3: 0.52

CV: 13.80%

0.39/0.42 (18) ± 0.09

Q1: 0.30, Q3: 0.46

CV: 23.29%

0.63/0.64 (5) ± 0.11

Q1: 0.55, Q3: 0.71

CV: 17.24%

  Xáltipan ig. (altered, welded)

1.78/1.75 (9) ± 0.14

Q1: 1.69, Q3: 1.94

CV: 7.88%

1.83/1.82 (6) ± 0.07

Q1: 1.77, Q3: 1.91

CV: 3.64%

1.10/1.27 (9) ± 0.32

Q1: 0.79, Q3: 1.40

CV: 29.14%

1.39/1.39 (6) ± 0.11

Q1: 0.64, Q3: 1.51

CV: 8.08%

Pre-caldera group

 Cinder cones total

0.91/0.86 (15) ± 0.37

Q1: 0.70, Q3: 1.23

CV: 41.10%

1.62/1.63 (11) ± 0.09

Q1: 1.53, Q3: 1.70

CV: 5.77%

0.57/0.61 (15) ± 0.15

Q1: 0.38, Q3: 0.64

CV: 26.81%

0.74/0.76 (11) ± 0.09

Q1: 0.64, Q3: 0.83

CV: 12.21%

  Scoria

1.07/1.06 (11) ± 0.28

Q1: 0.84, Q3: 1.26

CV: 26.35%

1.62/1.63 (11) ± 0.09

Q1: 1.53, Q3: 1.70

CV: 5.77%

0.65/0.64 (11) ± 0.08

Q1: 0.60, Q3: 0.66

CV: 12.95%

0.74/0.76 (11) ± 0.09

Q1: 0.64, Q3: 0.83

CV: 12.21%

  Fallout deposits

0.48/0.46 (4) ± 0.22

Q1: 0.29, Q3: 0.68

–

0.36/0.36 (4) ± 0.02

Q1: 0.34, Q3: 0.38

–

 Teziutlán andesite unit total

1.32/1.35 (112) ± 0.32

Q1: 0.99, Q3: 1.61

CV: 24.09%

1.50/1.52 (112) ± 0.12

Q1: 1.43, Q3: 1.58

CV: 7.67%

0.82/0.86 (110) ± 0.15

Q1: 0.73, Q3: 0.91

CV: 18.33%

1.10/1.09 (110) ± 0.16

Q1: 0.99, Q3: 1.18

CV: 14.82%

  Teziutlán and. (nonporous)

1.49/1.56 (80) ± 0.18

Q1: 1.32, Q3: 1.64

CV: 12.36%

1.52/1.54 (80) ± 0.13

Q1: 1.43, Q3: 1.60

CV: 8.26%

0.83/0.86 (80) ± 0.10

Q1: 0.77, Q3: 0.89

CV: 12.31%

1.14/1.14 (78) ± 0.17

Q1: 1.06, Q3: 1.23

CV: 15.27%

  Teziutlán and. (porous)

0.89/0.90 (32) ± 0.10

Q1: 0.82, Q3: 0.97

CV: 11.52%

1.47/1.48 (32) ± 0.08

Q1: 1.43, Q3: 1.54

CV: 5.14%

0.81/0.74 (30) ± 0.24

Q1: 0.58, Q3: 1.03

CV: 29.58%

1.00/1.00 (32) ± 0.06

Q1: 0.95, Q3: 1.04

CV: 5.70%

 Cuyoaco andesite unit

1.46/1.47 (47) ± 0.26

Q1: 1.24, Q3: 1.73

CV: 17.90%

1.67/1.63 (38) ± 0.21

Q1: 1.52, Q3: 1.75

CV: 12.64%

0.84/0.86 (48) ± 0.10

Q1: 0.78, Q3: 0.92

CV: 11.95%

1.38/1.38 (38) ± 0.18

Q1: 1.26, Q3: 1.48

CV: 12.98%

Basement

 Limestone Cretaceous

2.74/2.73 (327) ± 0.55

Q1: 2.44, Q3: 2.93

CV: 20.11%

3.03/2.93 (272) ± 0.58

Q1: 2.64, Q3: 3.34

CV: 19.23%

1.45/1.35 (324) ± 0.46

Q1: 1.21, Q3: 1.54

CV: 31.57%

1.72/1.56 (264) ± 0.59

Q1: 1.32, Q3: 1.93

CV: 34.52%

 Chert nodules

3.26/2.90 (16) ± 1.04

Q1: 2.67, Q3: 4.27

CV: 31.81%

4.11/3.27 (17) ± 1.57

Q1: 2.91, Q3: 5.73

CV: 38.19%

1.54/1.23 (17) ± 0.52

Q1:1.13, Q3: 2.13

CV: 33.75%

1.91/1.80 (17) ± 0.83

Q1: 1.21, Q3: 2.32

CV: 43.68%

 Shales Cretaceous

2.18/2.12 (7) ± 0.30

Q1: 1.92, Q3: 2.27

CV: 13.60%

2.29/2.13 (7) ± 0.39

Q1: 2.09, Q3: 2.26

CV: 17.25%

1.80/1.80 (6) ± 0.09

Q1: 1.73, Q3: 1.87

CV: 4.75%

1.64/1.65 (6) ± 0.06

Q1: 1.60, Q3: 1.69

CV: 3.52%

 Limestone Jurassic

2.66/2.68 (38) ± 0.23

Q1: 2.48, Q3: 2.84

CV: 8.65%

2.76/2.66 (36) ± 0.32

Q1: 2.49, Q3: 3.08

CV: 11.76%

1.60/1.50 (36) ± 0.34

Q1: 1.28, Q3: 1.95

CV: 21.41%

1.95/1.69 (30) ± 0.75

Q1: 1.44, Q3: 2.50

CV: 38.66%

 Sandstone Jurassic

1.38/1.38 (6) ± 0.16

Q1: 1.28, Q3: 1.53

CV: 11.29%

2.28/2.29 (6) ± 0.12

Q1: 2.20, Q3: 2.39

CV: 5.21%

0.88/0.88 (6) ± 0.05

Q1: 0.84, Q3: 0.92

CV: 5.36%

1.89/1.77 (6) ± 0.41

Q1: 1.61, Q3: 2.17

CV: 21.58%

 Basaltic–andesitic dykes

1.71/1.70 (22) ± 0.32

Q1: 1.47, Q3: 1.99

CV: 18.90%

1.86/1.65 (26) ± 0.57

Q1: 1.53, Q3: 1.99

CV: 30.51%

0.88/0.89 (20) ± 0.11

Q1: 0.79, Q3: 0.97

CV: 12.57%

1.12/0.91 (24) ± 0.39

Q1: 0.83, Q3: 1.48

CV: 34.78%

 Marble

3.10/3.22 (65) ± 0.60

Q1: 2.51, Q3: 3.64

CV: 19.29%

3.52/3.42 (65) ± 0.77

Q1: 2.78, Q3: 4.45

CV: 21.85%

1.52/1.37 (62) ± 0.60

Q1: 1.15, Q3: 1.64

CV: 39.66%

3.01/2.75 (61) ± 1.39

Q1: 1.85, Q3: 3.99

CV: 46.19%

 Quartz veins

5.25/5.21 (20) ± 0.61

Q1: 4.77, Q3: 5.80

CV: 11.65%

5.85/5.78 (20) ± 0.79

Q1: 5.20, Q3: 6.49

CV: 13.44%

4.30/3.92 (19) ± 1.08

Q1: 3.41, Q3: 5.36

CV: 25.19%

3.95/3.50 (20) ± 1.31

Q1: 2.92, Q3: 5.18

CV: 33.16%

 Skarn

3.23/3.42 (127) ± 0.77

Q1: 2.62, Q3: 3.82

CV: 23.71%

3.44/3.48 (126) ± 0.93

Q1: 2.87, Q3: 4.11

CV: 26.91%

1.81/1.55 (123) ± 0.63

Q1: 1.32, Q3: 2.27

CV: 34.17%

2.25/2.27 (117) ± 0.78

Q1: 1.63, Q3: 2.69

CV: 34.58%

 Granitoids total

2.00/1.97 (121) ± 0.50

Q1: 1.68, Q3: 2.28

CV: 25.19%

2.35/2.24 (102) ± 0.59

Q1: 1.95, Q3: 2.57

CV: 25.31%

1.09/1.08 (120) ± 0.26

Q1: 0.95, Q3: 1.18

CV: 23.91%

1.61/1.40 (102) ± 0.79

Q1: 1.08, Q3: 1.73

CV: 49.28%

  Granitoids (weak–moderate alteration)

2.13/2.06 (81) ± 0.39

Q1: 1.84, Q3: 2.28

CV: 18.43%

2.31/2.27 (68) ± 0.41

Q1: 2.06, Q3: 2.41

CV: 17.93%

1.14/1.11 (77) ± 0.21

Q1: 1.03, Q3: 1.20

CV: 30.15%

1.69/1.54 (62) ± 0.68

Q1: 1.30, Q3: 1.81

CV: 40.15%

  Granitoids (strong alteration)

1.90/1.64 (30) ± 0.62

Q1: 1.43, Q3: 2.50

CV: 32.71%

2.58/2.73 (26) ± 0.92

Q1: 1.78, Q3: 3.28

CV: 35.60%

1.07/1.00 (33) ± 0.32

Q1: 0.91, Q3: 1.18

CV: 30.15%

1.65/1.26 (30) ± 1.03

Q1: 1.08, Q3: 1.52

CV: 62.35%