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_ND1440.51247
SR87_SR860.70699
AL2O314.28 WT%
CAO8.76 WT%
FE2O3T10.91 WT%
K2O4.19 WT%
MGO6.03 WT%
MNO0.18 WT%
NA2O2.8 WT%
P2O50.62 WT%
SIO249.04 WT%
TIO22.82 WT%
CE215 PPM
EU3.23 PPM
LA117 PPM
LU0.4 PPM
ND77.4 PPM
SM12.5 PPM
TB1.39 PPM
YB2.5 PPM
BA1476 PPM
CO34.9 PPM
CR225 PPM
CS1.55 PPM
CU38 PPM
HF7.8 PPM
NB120 PPM
NI45 PPM
PB9 PPM
RB140 PPM
SC21.9 PPM
SR1209 PPM
TA8.34 PPM
TH20.6 PPM
U4.5 PPM
V211 PPM
Y30 PPM
ZN79 PPM
ZR379 PPM

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE

AGE0.04 ± 0.024 MA
AR36_AR390.012
AR40_AR393.95

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE

AGE0.251 ± 0.029 MA
AR36_AR390.018
AR40_AR397.28

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE

AGE0.025 ± 0.012 MA
AR36_AR390.01
AR40_AR393.28

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE

AGE0.035 ± 0.016 MA
AR36_AR390.008
AR40_AR392.57

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE

AGE0.048 ± 0.024 MA
AR36_AR390.008
AR40_AR392.67

Analyzed: MINERAL / COMPONENT (INCL. GROUNDMASS) LEUCITE

AGE0.033 ± 0.009 MA