In geology, what is the largest confirmed continental flood basalt province?

In geology, the Siberian Traps are the largest confirmed continental flood basalt province.

They formed in what is now Siberia during enormous volcanic eruptions near the end of the Permian Period, about 252 million years ago. The eruptions covered a vast area with successive layers of basaltic lava and also affected the atmosphere through volcanic gases and interactions with sedimentary rocks.

The Siberian Traps are closely associated in time with the end-Permian mass extinction, the most severe known mass extinction in Earth’s history. Scientists study their volume, duration, gas emissions, and environmental effects to understand that crisis, although details of the causal chain remain an active research subject.

The Deccan Traps are another major flood-basalt province, but they formed much later in India around the Cretaceous–Paleogene boundary and are not the largest confirmed example.