|
Sample ID
|
1979.6.16 scoria
|
1989.10.15 scoria
|
1989.11.24 scoria
|
2003.7.10 ash particlesb
|
|---|
|
AS790616S
|
mts10120608−2−p1mg1
|
AS89101501
|
AS891124
| |
|---|
|
Glass in groundmass
|
Glass in groundmass
|
Glass in groundmass
|
Glass in groundmass
|
Glass in groundmass
|
|---|
|
Av (n = 30, 1 s)
|
Av (n = 40, 1 s)
|
Av (n = 20, 1 s)
|
Av (n = 13, 1 s)
|
|---|
|
SiO2
|
59.19 (0.67)
|
53.70
|
58.16 (0.52)
|
58.00 (1.14)
|
58.09 (0.71)
|
|
TiO2
|
1.42 (0.05)
|
1.23
|
1.37 (0.03)
|
1.34 (0.06)
|
1.38 (0.05)
|
|
Al2O3
|
14.10 (0.22)
|
14.87
|
14.35 (0.15)
|
14.49 (0.22)
|
14.40 (0.27)
|
|
FeOt
|
9.71 (0.29)
|
9.25
|
9.51 (0.20)
|
9.62 (0.33)
|
9.73 (0.27)
|
|
MnO
|
0.20 (0.02)
|
0.16
|
0.20 (0.03)
|
0.19 (0.02)
|
0.19 (0.03)
|
|
MgO
|
2.55 (0.10)
|
2.75
|
2.85 (0.10)
|
3.10 (0.25)
|
2.89 (0.18)
|
|
CaO
|
5.86 (0.14)
|
5.77
|
6.15 (0.13)
|
6.53 (0.35)
|
6.24 (0.30)
|
|
Na2O
|
3.31 (0.19)
|
3.38
|
3.36 (0.15)
|
3.35 (0.17)
|
3.29 (0.14)
|
|
K2O
|
3.73 (0.10)
|
3.31
|
3.48 (0.08)
|
3.30 (0.17)
|
3.48 (0.19)
|
|
P2O5
|
0.50 (0.01)
|
0.18
|
0.47 (0.02)
|
0.45 (0.02)
|
0.48 (0.03)
|
|
S
|
0.002 (0.002)
|
0.025
|
0.006 (0.003)
|
0.012 (0.009)
|
0.005 (0.002)
|
|
Cl
|
0.064 (0.009)
|
0.081
|
0.066 (0.005)
|
0.071 (0.006)
|
0.071 (0.005)
|
|
H2O (SIMS/EPMA)
|
na/na
|
0.6/1.8
|
na/na
|
na/na
|
na/na
|
|
CO2 (SIMS)
|
na
|
0.003
|
na
|
na
|
na
|
|
Temperature (°C)a
| | | | | |
|
Sample ID
|
2014.11.26–27 scoria
|
|---|
|
I141129S01
|
I141129S02
|
I141129S03
|
I141129S
|
|---|
|
Groundmass bulk
|
Glass in groundmass
|
Glass in groundmass
|
Groundmass bulk
|
Glass in groundmass
|
Groundmass bulk
|
Glass in groundmass
|
|---|
|
Av (n = 20, 1 s)
|
Av (n = 20, 1 s)
|
Av (n = 30, 1 s)
|
Av (n = 20, 1 s)
|
Av (n = 30, 1 s)
|
|---|
|
SiO2
|
57.36 (0.57)
|
58.41
|
57.57 (0.47)
|
57.89 (2.25)
|
57.64 (0.67)
|
57.80 (0.87)
|
59.63
|
|
TiO2
|
1.31 (0.04)
|
1.33
|
1.32 (0.02)
|
1.19 (0.33)
|
1.38 (0.03)
|
1.31 (0.13)
|
1.36
|
|
Al2O3
|
14.25 (0.34)
|
14.61
|
14.06 (0.11)
|
15.16 (2.49)
|
13.68 (0.23)
|
14.77 (0.93)
|
14.07
|
|
FeOt
|
9.35 (0.26)
|
9.40
|
9.15 (0.24)
|
8.74 (1.90)
|
9.42 (0.23)
|
9.25 (1.04)
|
10.06
|
|
MnO
|
0.19 (0.03)
|
0.18
|
0.18 (0.03)
|
0.17 (0.06)
|
0.19 (0.03)
|
0.18 (0.03)
|
0.22
|
|
MgO
|
2.79 (0.16)
|
2.84
|
2.78 (0.08)
|
2.76 (1.22)
|
2.48 (0.16)
|
2.63 (0.46)
|
2.56
|
|
CaO
|
6.00 (0.23)
|
6.00
|
5.89 (0.15)
|
6.08 (0.89)
|
5.62 (0.21)
|
6.11 (0.51)
|
6.07
|
|
Na2O
|
3.11 (0.19)
|
3.34
|
3.01 (0.18)
|
3.32 (0.34)
|
2.85 (0.15)
|
3.20 (0.21)
|
3.43
|
|
K2O
|
3.29 (0.14)
|
3.35
|
3.31 (0.09)
|
3.11 (0.56)
|
3.58 (0.16)
|
3.22 (0.29)
|
3.39
|
|
P2O5
|
0.22 (0.03)
|
0.47
|
0.24 (0.02)
|
0.20 (0.10)
|
0.26 (0.03)
|
0.22 (0.04)
|
0.50
|
|
S
|
0.006 (0.003)
|
0.001
|
0.006 (0.004)
|
0.005 (0.006)
|
0.003 (0.003)
|
0.006 (0.003)
|
0.006
|
|
Cl
|
0.062 (0.004)
|
0.054
|
0.060 (0.007)
|
0.029 (0.014)
|
0.067 (0.007)
|
0.064 (0.008)
|
0.068
|
|
H2O (SIMS/EPMA)
|
na/na
|
0.1/nd
|
na/0.1
|
na/(0.1)
|
na/na
|
na/0.2
|
na/(0.2)
|
na/na
|
0.3/nd
|
|
CO2 (SIMS)
|
na
|
nd
|
na
|
na
|
na
|
na
|
nd
|
|
Temperature (°C)a
|
1092
| | |
1069
| |
1077
| |
- FeOt, total FeO; nd, not detected; na, not analyzed
- aEstimated from the chemical composition of the groundmass by glass (liquid) thermometer (Putirka 2008, Eq. (16)). This thermometer can apply to liquid in equilibrium with olivine + plagioclase + clinopyroxene + spinel (or oxides) and yields a standard error of estimate (SEE) of 26 °C. Pressure of 100 MPa was assumed
- bChemcial composition of glass in groundmass of ash particles erupted on July 10, 2003, is after GSJ et al. (2004)
