GEOROC Sample Information
Location
Latitude 12.5 | Longitude -86.7
CENTRAL AMERICAN VOLCANIC ARC / CENTRAL AMERICAN VOLCANIC ARC-NORTHWESTERN SEGMENT / NICARAGUA / CERRO NEGRO
CONVERGENT MARGIN
Reference
REAGAN M. K.,MAYFIELD D. G.,THOMAS R. B.,HIRSCHMAN M. M.,CHENG HAI
(231PA/235U)-(230TH/238U) OF YOUNG MAFIC VOLCANIC ROCKS FROM NICARAGUA AND COSTA RICA AND THE INFLUENCE OF FLUX MELTING ON U-SERIES SYSTEMATICS OF ARC LAVAS
GEOCHIM. COSMOCHIM. ACTA 66 [2002] 4287-4309
Sample Name: CN-92-2
Sample Information
BASALT
OUTCROP
Sample Age Information
1992 eruption
Chemistry (and, if given, analytical ages)
Analyzed: WHOLE ROCK
| AL2O3 | 20.48 WT% |
| CAO | 11.27 WT% |
| FE2O3T | 10.88 WT% |
| K2O | 0.49 WT% |
| MGO | 3.92 WT% |
| MNO | 0.19 WT% |
| NA2O | 2.27 WT% |
| P2O5 | 0.13 WT% |
| SIO2 | 49.62 WT% |
| TIO2 | 0.76 WT% |
| CE | 7.9 PPM |
| DY | 2.65 PPM |
| ER | 1.56 PPM |
| EU | 0.8 PPM |
| GD | 2.53 PPM |
| HO | 0.57 PPM |
| LA | 3.4 PPM |
| LU | 0.251 PPM |
| ND | 6.55 PPM |
| PR | 1.31 PPM |
| SM | 1.96 PPM |
| TB | 0.45 PPM |
| YB | 1.58 PPM |
| BA | 392 PPM |
| CR | 26 PPM |
| CS | 0.376 PPM |
| CU | 166 PPM |
| HF | 1.11 PPM |
| NB | 1.32 PPM |
| NI | 20 PPM |
| PA | 157 ± 3 PPT |
| PB | 1.83 PPM |
| RB | 7.64 PPM |
| SC | 29.6 PPM |
| SR | 493 PPM |
| TA | 0.084 PPM |
| TH | 0.38 PPM |
| TH232 | 0.37 ± 0.005 PPM |
| U | 0.31 PPM |
| U238 | 0.3242 ± 0.004 PPM |
| V | 295 PPM |
| Y | 15.9 PPM |
| ZR | 39 PPM |
| PA231_U235_ACT | 1.48 ± 0.03 |
| TH230_TH232_ACT | 2.27 ± 0.01 |
| TH230_U238_ACT | 0.843 ± 0.011 |