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: N3

Sample Information

ANDESITE / PORPHYRITIC TEXTURE / NON-VESICULAR COMPACT
OUTCROP

Sample Age Information

No sample age information given.

Chemistry (and, if given, analytical ages)

Analyzed: WHOLE ROCK

AL2O315.86 WT%
CAO5.88 WT%
FE2O34.53 WT%
FE2O3T5.72 WT%
FEO1.08 WT%
K2O1.54 WT%
LOI3.51 WT%
MGO3.25 WT%
MNO0.11 WT%
NA2O2.71 WT%
P2O50.12 WT%
SIO261.31 WT%
TIO20.51 WT%
BA306 PPM
CO23 PPM
CR70 PPM
GA13 PPM
NI51 PPM
RB55 PPM
SC16 PPM
SR339 PPM
V105 PPM
Y16 PPM
ZR95 PPM

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN45.8 MOL%
AL2O326.67 WT%
CAO9.69 WT%
FEOT0.32 WT%
K2O0.48 WT%
MGO0 WT%
NA2O6.01 WT%
SIO255.74 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN54.6 MOL%
AL2O328.45 WT%
CAO11.06 WT%
FEOT0.19 WT%
K2O0.28 WT%
MGO0.03 WT%
NA2O4.89 WT%
SIO254.07 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN48.8 MOL%
AL2O327.05 WT%
CAO10.07 WT%
FEOT0.24 WT%
K2O0.28 WT%
MGO0 WT%
NA2O5.66 WT%
SIO254.7 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN47.8 MOL%
AL2O327.03 WT%
CAO9.96 WT%
FEOT0.2 WT%
K2O0.38 WT%
MGO0 WT%
NA2O5.77 WT%
SIO254.84 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN49.4 MOL%
AL2O327.29 WT%
CAO10.12 WT%
FEOT0.21 WT%
K2O0.33 WT%
MGO0 WT%
NA2O5.52 WT%
SIO254.84 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN51.5 MOL%
AL2O327.82 WT%
CAO10.55 WT%
FEOT0.12 WT%
K2O0.22 WT%
MGO0.02 WT%
NA2O5.34 WT%
SIO254.3 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN72.2 MOL%
AL2O331.37 WT%
CAO14.97 WT%
FEOT0.73 WT%
K2O0.2 WT%
MGO0.08 WT%
NA2O3.06 WT%
SIO249.14 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE

AN49.8 MOL%
AL2O327.54 WT%
CAO10.3 WT%
FEOT0.26 WT%
K2O0.32 WT%
MGO0.02 WT%
NA2O5.54 WT%
SIO254.95 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) OLIVINE

FO86 MOL%
AL2O30.02 WT%
CAO0.15 WT%
FEOT12.78 WT%
K2O0 WT%
MGO46.59 WT%
MNO0.16 WT%
NA2O0 WT%
SIO239.38 WT%
TIO20.15 WT%

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PYROXENE

EN65.804 MOL%
FS31.466 MOL%
WO2.731 MOL%
AL2O31.38 WT%
CAO1.38 WT%
FEOT19.42 WT%
K2O0 WT%
MGO23.9 WT%
MNO0.94 WT%
NA2O0.02 WT%
SIO252.44 WT%
TIO20.26 WT%