Pillan Patera

At temperatures higher than 1,600 °C, (2912 °F) a 140 kilometer high plume eruption deposited dark pyroclastic materials rich in orthopyroxene over an area greater than 125,000 km2.

The eruption sheds light on emplacement of very large, voluminous flows millions of years ago on Mars and Earth.

The highest effusion rates exceeded 10,000 cubic meters per second.

[3] The eruption produced a large, dark, deposit, 400 kilometers in diameter, which surrounds Pillan and partially covers a bright red ring left by the volcano Pele's plume.

Since the eruption, the Pillan plume deposit has faded, coated by material from Pele and Kami-Nari Patera, a small volcano to the east of Pillan Patera.