GEOROC Sample Information
Location
Latitude 8.62 | Longitude 39.52
EAST AFRICAN RIFT / ETHIOPIAN RIFT / MAIN ETHIOPIAN RIFT / BOSETI VOLCANIC COMPLEX
BARICCIA
RIFT VOLCANICS
Reference
PICCIRILLO E. M.,BROTZU P.,MORBIDELLI L.,TRAVERSA G.
VOLCANOLOGICAL AND MAGMATOLOGICAL EVIDENCE OF THE BOSETI VOLCANIC COMPLEX (MAIN ETHIOPIAN RIFT)
ATTI CONVEGNI LINCEI ACCAD. NAZ. LINCEI 47 [1980] 317-366
Sample Name: 438
Sample Information
TRACHYTE
OUTCROP
Sample Age Information
QUATERNARY
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AL2O3 | 15.15 WT% |
| CAO | 1.53 WT% |
| FE2O3 | 1.48 WT% |
| FEO | 3.67 WT% |
| H2OM | 0.26 WT% |
| H2OP | 0.78 WT% |
| K2O | 4 WT% |
| MGO | 0.72 WT% |
| MNO | 0.18 WT% |
| NA2O | 6.4 WT% |
| P2O5 | 0.21 WT% |
| SIO2 | 65.26 WT% |
| TIO2 | 0.74 WT% |
| CE | 126 PPM |
| LA | 80 PPM |
| BA | 481 PPM |
| CR | 14 PPM |
| NI | 4 PPM |
| RB | 88 PPM |
| SR | 152 PPM |
| ZR | 849 PPM |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) CLINOPYROXENE
| AL2O3 | 0.32 WT% |
| CAO | 1.7 WT% |
| FEOT | 24.03 WT% |
| MGO | 19.92 WT% |
| MNO | 0.88 WT% |
| NA2O | 0.13 WT% |
| SIO2 | 52.08 WT% |
| TIO2 | 0.18 WT% |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) CLINOPYROXENE
| AL2O3 | 0.64 WT% |
| CAO | 17.5 WT% |
| FEOT | 15.82 WT% |
| MGO | 12.7 WT% |
| MNO | 0.61 WT% |
| NA2O | 0.53 WT% |
| SIO2 | 51.54 WT% |
| TIO2 | 0.46 WT% |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) PLAGIOCLASE
| AB | 66.8 MOL% |
| AN | 27.9 MOL% |
| OR | 5.3 MOL% |
| AL2O3 | 23.98 WT% |
| CAO | 5.62 WT% |
| FE2O3T | 0.31 WT% |
| K2O | 0.9 WT% |
| NA2O | 7.89 WT% |
| SIO2 | 61.19 WT% |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) (AL)KALIFELDSPAR
| AB | 74.9 MOL% |
| AN | 8.2 MOL% |
| OR | 20.9 MOL% |
| AL2O3 | 20.56 WT% |
| CAO | 1.66 WT% |
| FE2O3T | 0.2 WT% |
| K2O | 2.85 WT% |
| NA2O | 8.85 WT% |
| SIO2 | 65.77 WT% |