GEOROC Sample Information
Location
Latitude -1.38 | Longitude 29.67
EAST AFRICAN RIFT / WESTERN EAST AFRICAN RIFT (TANGANYIKA RIFT) / VIRUNGA PROVINCE / BUFUMBIRA VOLCANIC FIELD
MUHAVURA, BUFUMBIRA REGION
RIFT VOLCANICS
Reference
ROGERS N. W.,JAMES D. E.,KELLEY S. P.,DE MULDER M.
THE GENERATION OF POTASSIC LAVAS FROM THE EASTERN VIRUNGA PROVINCE, RWANDA
J. PETROL. 39 [1998] 1223-1247
Sample Name: M87
Sample Information
NOT GIVEN / FRACTIONATED LAVA, BASANITE/HAWAIITE / FRESH / MINOR ALTERATION LIMITED TO SERPENTINIZATION OF OLIVINE
OUTCROP
Sample Age Information
No sample age information given.
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
ND143_ND144 | 0.51247 |
SR87_SR86 | 0.70699 |
AL2O3 | 14.28 WT% |
CAO | 8.76 WT% |
FE2O3T | 10.91 WT% |
K2O | 4.19 WT% |
MGO | 6.03 WT% |
MNO | 0.18 WT% |
NA2O | 2.8 WT% |
P2O5 | 0.62 WT% |
SIO2 | 49.04 WT% |
TIO2 | 2.82 WT% |
CE | 215 PPM |
EU | 3.23 PPM |
LA | 117 PPM |
LU | 0.4 PPM |
ND | 77.4 PPM |
SM | 12.5 PPM |
TB | 1.39 PPM |
YB | 2.5 PPM |
BA | 1476 PPM |
CO | 34.9 PPM |
CR | 225 PPM |
CS | 1.55 PPM |
CU | 38 PPM |
HF | 7.8 PPM |
NB | 120 PPM |
NI | 45 PPM |
PB | 9 PPM |
RB | 140 PPM |
SC | 21.9 PPM |
SR | 1209 PPM |
TA | 8.34 PPM |
TH | 20.6 PPM |
U | 4.5 PPM |
V | 211 PPM |
Y | 30 PPM |
ZN | 79 PPM |
ZR | 379 PPM |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE
AGE | 0.04 ± 0.024 MA |
AR36_AR39 | 0.012 |
AR40_AR39 | 3.95 |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE
AGE | 0.251 ± 0.029 MA |
AR36_AR39 | 0.018 |
AR40_AR39 | 7.28 |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE
AGE | 0.025 ± 0.012 MA |
AR36_AR39 | 0.01 |
AR40_AR39 | 3.28 |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE
AGE | 0.035 ± 0.016 MA |
AR36_AR39 | 0.008 |
AR40_AR39 | 2.57 |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE
AGE | 0.048 ± 0.024 MA |
AR36_AR39 | 0.008 |
AR40_AR39 | 2.67 |
Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE
AGE | 0.033 ± 0.009 MA |