TITLE Timescales of magmatic processes occurred prior to the ~4.7 ka Agnano-Monte Spina eruption (Campi Flegrei caldera, Southern Italy) based on diffusion chronometry on sanidine phenocrysts

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ESM_6 Time estimates for Agnano-Monte Spina sanidine phenocrysts derived from Ba diffusion models across selected transects, calculated for temperatures of 900, 930 and 950 °C

TITLE Timescales of magmatic processes occurred prior to the ~4.7 ka Agnano-Monte Spina eruption (Campi Flegrei caldera, Southern Italy) based on diffusion chronometry on sanidine phenocrysts

JOURNAL Bulletin of Volcanology

AUTHORS Raffaella Silvia Iovine, Lorenzo Fedele, Fabio Carmine Mazzeo, Ilenia Arienzo, Andrea Cavallo, Gerhard Wörner, Giovanni Orsi, Lucia Civetta, Massimo D’Antonio

Corresponding author Massimo D’Antonio - Dipartimento di Scienze della Terra, dell’Ambiente e delle Risorse (DiSTAR), University of

Naples Federico II, Largo S. Marcellino 10, 80138 Naples, Italy - masdanto@unina.it

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Time estimates for Agnano-Monte Spina sanidine phenocrysts derived from Ba diffusion models across selected transects, calculated for temperatures of 900, 930 and 950 °C

T (°C) 900°C 930°C 950°C 900°C 930°C 950°C 900°C 930°C 950°C

A-MS A

BaO profile

gray- scale profile

BaO profil e

gray- scale profile

BaO profil e

gray- scale profil e

A-MS B

BaO profil

e

BaO profil

e

BaO profil e

gray- scale profile

A-MS D

BaO profil

e

BaO profil e

gray- scale profile

BaO profil e

cx1 1114 348 164 cx1 877 274 129 cx1 1436 428 449 134 211 63

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cx2 300 94 44 cx1_L1 415 12 130 4 61 2 cx3 3825 1195 562

cx3 198 62 29 cx1_L1 2^nd 7 2 1 cx3_L1 3137 980 461

cx4_L1 83 26 12 cx1_L2 3190 72 997 23 469 11 cx3_L2 102 32 15

cx4_L2 2871 51 897 16 422 8 cx1_L2 2^nd 12 4 2 cx4 111 35 16

cx5 99 11 31 4 15 2 cx2_L1 614 15 192 5 90 2 cx5_L1 51 28 16 9 7 4

cx5_L2 30 9 4 cx2_L2 56 16 24 5 11 2 cx6_L1 48 484* 15 151* 7 71*

cx5_L2 2^nd 4 1 0.6 cx3 854 107 267 33 126 16 cx6_L2 48 305* 15 95* 7 45*

cx6 1599 18 500 6 235 3 cx4_L1 183 57 27 cx7 122 25 38 8 18 4

cx10 1950 609 287 cx4_L2 328 102 48 cx8_L1 524 4 164 1 77 0.6

cx12_L1 284 4 89 1 42 0.5 cx5_L1 70 98 22 31 10 14 cx8_L2 532 17 166 6 72 3

cx12_L1 2^nd 19 7 3 cx5_L2 123 26 39 8 18 4 cx8_L3 171 24 53 8 25 4

cx12_L2 12 4 2 cx5_L3 92 23 29 7 14 3 cx9 42 13 6

cx12_L2 2^nd 334 26 104 8 49 4 cx7 146 45 21 cx10 155 325 49 101 23 48

cx13_L1 722 10 226 3 106 1 cx8_L1 7 2 1 cx11_L

1 31 10 4

cx13_L1 2^nd 59 18 9 cx9_L1 98 393 31 123 14 58 cx11_L

2 501 92 157 29 74 13

cx14_L1 16 5 2 cx9_L2 524 164 77 cx12_L

1 132 11 41 3 19 2

cx14_L1 2^nd 13 4 2 cx9_L3 836 261 123 cx13_L

1 326 142 102 44 48 21

cx14_L2 107 17 33 5 16 2 cx10_L1 142 47 44 15 21 7 cx13_L

2 250 78 37

cx15_L1 945 68 295 21 139 10 cx10_L1 2^nd 77 24 11 cx14 358 68 112 21 53 10

cx19_L1 144 45 21 cx10_L2 26 8 4

cx19_L2 1391 125 435 39 205 18 cx11 24 8 3

cx20_L1 1600 46 500 14 235 7 cx12 549 171 81

cx20_L2 40 13 6 cx14 436 136 64

* calculated on gray-scale profile not close to the quantitative BaO profile. Numbers in bold indicate age estimates utilized for building the frequency histograms (Online Resource 7) and the cumulative frequency diagram of Fig. 7 (see text for more detail)

Time estimates derived from X-ray scan profiles for selected Agnano-Monte Spina sanidine phenocrysts and comparison with time estimates derived from BaO and gray-scale profiles, calculated for temperatures of 900, 930 and 950 °C

900°C 930°C 950°C

BaO gray-scale X-ray scan BaO gray-scale X-ray scan BaO gray-scale X-ray scan

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profile profile profile profile profile profile profile profile profile

Bcx1 877 15 274 5 129 2

Bcx2_L1 614 15 63 192 5 20 90 2 9

Bcx2_L1 2

^nd

614 15 74 192 5 23 90 2 11

Bcx9_L2 524 51 164 16 77 7

Bcx10_L1 142 77 13 44 15 4 21 7 2

Bcx10_L2 26 23 8 7 4 3

Dcx7 122 25 10 38 8 3 18 4 1

Dcx12_L1 132 11 8 41 3 2 19 2 1

Dcx12_L2 8 2 1

Numbers in bold indicate age estimates utilized for building the frequency histograms (Online Resource 7) and the cumulative frequency diagram of Fig. 7 (see text

for more detail)

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