The crater floor, averaging about 505 m below the sea surface, is marked in its northeast area by a field of hydrothermal vents and covered by a thick bacterial community, the 2006 NOAA expedition discovered.
The crater floor, averaging about 505 m below the sea surface, is characterized in its northeast area by a field of hydrothermal vents and covered by a dense bacterial community, as revealed by the 2006 NOAA expedition.