pockmarks

n.

痘痕，麻子( pockmark的名词复数 )；

Pockmarks on Scotian Shelf
Pockmarks on the Scotian Shelf
Mega-pockmarks and linear pockmark trains on the West African continental margin
Giant sea-bed pockmarks: Evidence for gas escape from Belfast Bay, Maine
Seabed pockmarks and seepages: Impact on geology, biology and the marine environment
Complex pockmarks with carbonate-ridges off mid-Norway: Products of sediment degassing
Pockmarks in the Northern Congo Fan area, SW Africa: Complex seafloor features shaped by fluid flow
Methane-related carbonate cements in pockmarks of the North Sea
The significance of pockmarks to understanding fluid flow processes and geohazards
Methane-generated(?) pockmarks on young, thickly sedimented oceanic crust in the Arctic: Vestnesa ridge, Fram strait