How do Lava Plateaus Form?

Lava plains are made up of very wet basaltic mud during many successive eruptions using many holes without strong explosions (peaceful eruptions). This explosion is quiet due to the low viscosity of the lava so it is very wet and contains a small number of trapped gases. The effect of the lava flowsheet may be extracted from cracks or line cracks or large volcanic cracks through many prehistoric pipelines that have produced large flood basalts

These layers of mud sheets form plains. Example: North Island Volcanic Plateau of North Island New Zealand, Columbia Plateau in the northwestern United States, Deccan Plateau in India.