|
Core,
section,
interval (cm): |
16R-1,
67-68 |
20R-1,
138-141 |
24-1,
99-100 |
32R-3,
82-84 |
36-4,
20-22 |
40R-1,
18-20 |
45R-1,
107-109 |
|---|---|---|---|---|---|---|---|
|
Depth (mbsf):
|
140.07
|
179.38
|
218.83
|
295.87
|
355.09
|
369.98
|
428.58
|
| Oxides (wt%): | |||||||
| SiO2 | 48.38 | 52.15 | 50.25 | 49.95 | 53.71 | 42.86 | 56.47 |
| Al2O3 | 14.85 | 14.86 | 15.18 | 14.38 | 17.36 | 12.31 | 16.14 |
| Fe2O3 | 10.62 | 9.51 | 10.90 | 11.49 | 6.47 | 6.11 | 6.19 |
| MgO | 6.94 | 6.57 | 7.02 | 8.60 | 5.01 | 3.61 | 4.36 |
| CaO | 5.12 | 4.38 | 3.51 | 3.46 | 4.52 | 14.81 | 4.94 |
| Na2O | 2.70 | 3.19 | 2.79 | 2.76 | 3.79 | 2.32 | 3.83 |
| K2O | 1.248 | 1.259 | 1.354 | 1.051 | 2.659 | 1.477 | 1.830 |
| TiO2 | 0.980 | 0.996 | 0.901 | 1.063 | 1.053 | 0.718 | 0.943 |
| MnO | 0.136 | 0.088 | 0.103 | 0.081 | 0.095 | 0.252 | 0.051 |
| P2O5 | 0.142 | 0.113 | 0.130 | 0.114 | 0.306 | 1.284 | 0.271 |
| LOI | 8.80 | 6.28 | 7.70 | 7.24 | 4.48 | 14.05 | 4.60 |
| Total | 99.92 | 99.40 | 99.84 | 100.19 | 99.45 | 99.80 | 99.63 |
| Trace elements (ppm): | |||||||
| Ba | 250.2 | 264.6 | 248.9 | 225.1 | 744.7 | 369 | 614.2 |
| V | 217.3 | 238.1 | 216.9 | 257 | 140.4 | 224 | 167.4 |
| La | 10.9 | 6.3 | 8.8 | 9.6 | 32.1 | 16 | 18.2 |
| Ce | 34.5 | 21.1 | 26.7 | 26.4 | 76.0 | 44 | 50.0 |
| Nd | 18.8 | 11.1 | 14.8 | 12.5 | 35.2 | 21 | 23.3 |
| Cr | 282.8 | 382.1 | 350.7 | 283.4 | 197.3 | 379 | 321.2 |
| Ni | 182.9 | 178.3 | 207.4 | 297.9 | 95.2 | 115 | 108.7 |
| Cu | 122.7 | 91.8 | 120.6 | 129.6 | 55.7 | 74 | 53.1 |
| Zn | 9 | 8.6 | 13.9 | 9.3 | 16.2 | 14 | 12.4 |
| Pb | 34.8 | 34.9 | 38.7 | 29.6 | 48.8 | 34 | 40.2 |
| Rb | 459.7 | 506.8 | 424.4 | 296.8 | 581.9 | 730 | 644.8 |
| Sr | 20.7 | 17.9 | 17.1 | 19.9 | 29.7 | 20 | 17.8 |
| Y | 125 | 101 | 115.3 | 113.4 | 226.9 | 161 | 194.2 |
| Zr | 5.6 | 4 | 4.4 | 5 | 9.2 | 3.9 | 7.9 |
| Nb | |||||||
Note: LOI = loss on ignition.