GEOROC Sample Information
Location
Latitude -1.4 | Longitude 29.6
EAST AFRICAN RIFT / WESTERN EAST AFRICAN RIFT (TANGANYIKA RIFT) / VIRUNGA PROVINCE
RIFT VOLCANICS
Reference
BONHOMME M. G.,KAMPUNZU A. B.,KANIKA M.
GEOCHRONOLOGY OF VOLCANIC ROCKS AND EVOLUTION OF THE CENOZOIC WESTERN BRANCH OF THE EAST AFRICAN RIFT SYSTEM
J. AFR. EARTH SCI. 26 [1998] 441-461
Sample Name: TRK2A
Sample Information
BENMOREITE / MODERATELY PORPHYRITIC TO APHYRIC TEXTURE
OUTCROP
Sample Age Information
MIOCENE
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AGE | 10.2 ± 0.7 MA |
| AL2O3 | 17.83 WT% |
| CAO | 4.1 WT% |
| FE2O3 | 2.36 WT% |
| FEO | 3.95 WT% |
| K2O | 3.23 WT% |
| K2O | 3.59 WT% |
| LOI | 2.64 WT% |
| MGO | 1.47 WT% |
| MNO | 0.18 WT% |
| NA2O | 7.6 WT% |
| P2O5 | 0.39 WT% |
| SIO2 | 53.75 WT% |
| TIO2 | 0.53 WT% |
| AR40 | 0.000001067 CCMSTP/G |