GEOROC Sample Information
Location
Latitude 52.33 | Longitude -174.17
ALEUTIAN ARC / CENTRAL ALEUTIAN ARC / ATKA / KLIUCHEF
CONVERGENT MARGIN
Reference
MYERS J. D.,FROST C. D.,MARSH B. D.,LINTON J. A.
PETROLOGIC CONSTRAINTS ON THE SPATIAL DISTRIBUTION OF CRUSTAL MAGMA CHAMBERS, ATKA VOLCANIC CENTER, CENTRAL ALEUTIAN ARC
CONTRIB. MINERAL. PETROL. 143 [2002] 567-586
Sample Name: AT-94
Sample Information
BASALT
OUTCROP
Sample Age Information
No sample age information given.
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AL2O3 | 18.3 WT% |
| CAO | 8.82 WT% |
| FE2O3 | 3.06 WT% |
| FEO | 6.43 WT% |
| FEOT | 9.18 WT% |
| K2O | 1.1 WT% |
| MGO | 4.05 WT% |
| MNO | 0.2 WT% |
| NA2O | 3.23 WT% |
| P2O5 | 0.23 WT% |
| SIO2 | 52.6 WT% |
| TIO2 | 1.04 WT% |
| CE | 22.9 PPM |
| DY | 4.39 PPM |
| ER | 2.76 PPM |
| EU | 1.17 PPM |
| GD | 4.51 PPM |
| LA | 9.85 PPM |
| ND | 16.5 PPM |
| SM | 4.48 PPM |
| YB | 2.44 PPM |
| BA | 379 PPM |
| CR | 35 PPM |
| CU | 132 PPM |
| NI | 23 PPM |
| SC | 31 PPM |
| SR | 504 PPM |
| V | 285 PPM |
| Y | 27.4 PPM |
| ZR | 90 PPM |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE
| AB | 43.8 MOL% |
| AN | 52.1 MOL% |
| OR | 4.1 MOL% |
| AL2O3 | 27.91 WT% |
| CAO | 10.87 WT% |
| FE2O3 | 0.83 WT% |
| K2O | 0.72 WT% |
| NA2O | 5.06 WT% |
| SIO2 | 55.4 WT% |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) OLIVINE
| FA | 40.2 MOL% |
| FO | 59.5 MOL% |
| CAO | 0.24 WT% |
| FEOT | 34.44 WT% |
| MGO | 28.62 WT% |
| MNO | 0.74 WT% |
| NIO | 0.06 WT% |
| SIO2 | 36.12 WT% |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) CLINOPYROXENE
| EN | 46.3 MOL% |
| FS | 18 MOL% |
| WO | 35.6 MOL% |
| AL2O3 | 3.09 WT% |
| CAO | 16.25 WT% |
| FEOT | 13.03 WT% |
| MGO | 15.19 WT% |
| MNO | 0.47 WT% |
| NA2O | 0.46 WT% |
| SIO2 | 50.54 WT% |
| TIO2 | 0.68 WT% |