GEOROC Sample Information

Location
Latitude 13.42 | Longitude 94.27
SUNDA ARC / ANDAMAN ARC / NARCONDAM ISLAND / NARCONDAM
NNE OF BARREN ISLAND
CONVERGENT MARGIN

Reference

SENGUPTA S. K.,PAL T.,MITRA S. K.,KATARI A.,BANDOPADHYAY P. C.,BHATTACHARYA A. K.

DACITE-ANDESITES OF NARCONDAM VOLCANO IN THE ANDAMAN SEA - AN IMPRINT OF MAGMA MIXING IN THE INNER ARC OF THE ANDAMAN-JAVA SUBDUCTION SYSTEM

J. VOLCANOL. GEOTHERM. RES. 168 [2007] 93-113

Sample Name: N8

Sample Information

DACITE / PORPHYRITIC TEXTURE / NON-VESICULAR COMPACT
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

AL2O315.69 WT%
CAO5.16 WT%
FE2O34.26 WT%
FE2O3T5.26 WT%
FEO0.91 WT%
K2O1.81 WT%
LOI1.63 WT%
MGO2.14 WT%
MNO0.11 WT%
NA2O3.06 WT%
P2O50.12 WT%
SIO264.87 WT%
TIO20.47 WT%
BA381 PPM
CO34 PPM
CR6 PPM
GA11 PPM
NI0 PPM
RB62 PPM
SC15 PPM
SR361 PPM
V85 PPM
Y15 PPM
ZR104 PPM

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN46.3 MOL%
AL2O326 WT%
BAO0 WT%
CAO9.52 WT%
FEOT0.27 WT%
K2O0.26 WT%
MGO0 WT%
NA2O5.93 WT%
SIO255.73 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN75.8 MOL%
AL2O329.4 WT%
BAO0.1 WT%
CAO15.48 WT%
FEOT0.5 WT%
K2O0.05 WT%
MGO0.02 WT%
NA2O2.69 WT%
SIO248.54 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN54.7 MOL%
AL2O327 WT%
BAO0 WT%
CAO11.14 WT%
FEOT0.57 WT%
K2O0.22 WT%
MGO0.01 WT%
NA2O4.96 WT%
SIO253.31 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN74.6 MOL%
AL2O331.2 WT%
CAO15.11 WT%
FEOT0.57 WT%
K2O0.07 WT%
MGO0.1 WT%
NA2O2.8 WT%
SIO248.4 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN66.1 MOL%
AL2O330.4 WT%
CAO13.45 WT%
FEOT0.24 WT%
K2O0.12 WT%
MGO0.01 WT%
NA2O3.73 WT%
SIO250.88 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN65.9 MOL%
AL2O329.9 WT%
CAO13.16 WT%
FEOT0.69 WT%
K2O0.18 WT%
MGO0.09 WT%
NA2O3.64 WT%
SIO251.45 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN75.5 MOL%
AL2O330.7 WT%
BAO0.1 WT%
CAO15.78 WT%
FEOT0.44 WT%
K2O0.13 WT%
MGO0.02 WT%
NA2O2.74 WT%
SIO248.07 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN50.4 MOL%
AL2O325.9 WT%
BAO0.1 WT%
CAO10.27 WT%
FEOT0.34 WT%
K2O0.32 WT%
MGO0.02 WT%
NA2O5.38 WT%
SIO254.98 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN21.2 MOL%
AL2O322.29 WT%
CAO4.17 WT%
FEOT0.41 WT%
K2O2.58 WT%
MGO0.04 WT%
NA2O6.89 WT%
SIO262.03 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) AMPHIBOLE

AL2O38.17 WT%
CAO10.65 WT%
FEOT12.87 WT%
K2O0.24 WT%
MGO14.34 WT%
MNO0.49 WT%
NA2O1.25 WT%
SIO246.57 WT%
TIO21.3 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) AMPHIBOLE

AL2O37.45 WT%
CAO10.77 WT%
FEOT12.8 WT%
K2O0.22 WT%
MGO15.04 WT%
MNO0.44 WT%
NA2O1.14 WT%
SIO247.34 WT%
TIO21.21 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) AMPHIBOLE

AL2O312.19 WT%
CAO11.19 WT%
FEOT13.36 WT%
K2O0.25 WT%
MGO13.36 WT%
MNO0.22 WT%
NA2O2.06 WT%
SIO242.01 WT%
TIO21.87 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) AMPHIBOLE

AL2O312.07 WT%
CAO10.78 WT%
FEOT13.09 WT%
K2O0.5 WT%
MGO13.56 WT%
MNO0.25 WT%
NA2O1.93 WT%
SIO241.56 WT%
TIO23 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) BIOTITE

AL2O314.11 WT%
CAO0 WT%
CR2O30 WT%
FEO14.4 WT%
K2O8.29 WT%
MGO15.64 WT%
MNO0.17 WT%
NA2O1.09 WT%
SIO236.25 WT%
TIO23.59 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) BIOTITE

AL2O313.91 WT%
CAO0.04 WT%
CR2O30 WT%
FEO14.52 WT%
K2O8.46 WT%
MGO15.76 WT%
MNO0.17 WT%
NA2O1 WT%
SIO236.82 WT%
TIO23.7 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) BIOTITE

AL2O314.29 WT%
CAO0 WT%
CR2O30 WT%
FEO14.67 WT%
K2O8.3 WT%
MGO15.61 WT%
MNO0.13 WT%
NA2O1.01 WT%
SIO236.62 WT%
TIO23.43 WT%