Figure 4: Oblique view of survey of two serpentine mud volcanoes on the southern Mariana forearc. View is from the southeast of sonar backscatter (dark = rough seafloor, light  = smooth sedimented seafloor) superimposed on bathymetry data.  Contour interval is 500 m, annotated every 1,000 m. Vertical exaggeration = 5 times. Image shows North and South Chamorro Seamounts, debris flows from a sector collapse of South Chamorro Seamount and fault scarps near the trench, which is toward the lower right corner of the image.

Figure 4: Oblique view of survey of two serpentine mud volcanoes on the southern Mariana forearc. View is from the southeast of sonar backscatter (dark = rough seafloor, light = smooth sedimented seafloor) superimposed on bathymetry data. Contour interval is 500 meters, annotated every 1,000 meterse. Vertical exaggeration = 5 times. Image shows North and South Chamorro Seamounts, debris flows from a sector collapse of South Chamorro Seamount and fault scarps near the trench, which is toward the lower right corner of the image. Image courtesy of Fryer et al. 1999.

 

Related Links

The Geology of the Mariana Convergent Plate Region

2016 Deepwater Exploration of the Marianas

NOAA Ship Okeanos Explorer