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: NAR/1
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
| AL2O3 | 14.83 WT% |
| CAO | 5.81 WT% |
| FE2O3 | 4.61 WT% |
| FE2O3T | 5.81 WT% |
| FEO | 1.08 WT% |
| K2O | 1.48 WT% |
| LOI | 3.78 WT% |
| MGO | 3.14 WT% |
| MNO | 0.11 WT% |
| NA2O | 2.72 WT% |
| P2O5 | 0.13 WT% |
| SIO2 | 61.66 WT% |
| TIO2 | 0.51 WT% |
| BA | 312 PPM |
| CO | 26 PPM |
| CR | 69 PPM |
| GA | 15 PPM |
| NI | 46 PPM |
| RB | 54 PPM |
| SC | 17 PPM |
| SR | 326 PPM |
| V | 110 PPM |
| Y | 19 PPM |
| ZR | 100 PPM |