CoachA large igneous province (LIP) is an accumulation of igneous rock, mostly basalt, that is not made by ordinary spreading at a ridge, covers more than , holds more than , and was emplaced within at most about 50 million years, most of it in pulses of 1 to 5 million years that carry more than three quarters of its volume. On land LIPs are mostly flood basalts; in the oceans, oceanic plateaus.
| province | age (Ma) | area () | first volume () |
|---|---|---|---|
| Columbia River | 16 | 0.2 | 0.2 |
| Ethiopia–Yemen | 30 | 0.7 | 1.2 |
| North Atlantic | 61 and 56 | 1.2 | more than 2 |
| Deccan | 65.5 | 0.5 (once 1.8) | 2 to 4 |
| Ontong Java | 122 and 90 | 2 | 44 (whole crust) |
| Paraná–Etendeka | 133 | 1.5 (once over 2) | more than 2.3 |
| Karoo–Ferrar | 183 | 3.1 | more than 2.5 |
| Central Atlantic (CAMP) | 201 | once up to 7 | more than 2 |
| Siberian Traps | 250 | 0.4 (once over 4) | more than 3 |
| Emeishan | 259 | 0.5 (once 2 to 5) | more than 1 |