The Kapitan Khlebnikov
is a powerful ice-breaker and so can steam through ice such
as this at a rate of several knots.
In this case, the fast ice is
flat and continuous but quite thin, the ship has to actively
break it, but due to its relative thinness, it breaks into small
pieces leaving icy rubble that can be seen to the sides of the
path the ship has taken. Ice breakers are often used to make
paths such as this for other shipping that is not sufficiently
ice strengthened or powerful enough to break a path through
themselves.

Picture courtesy of Mike Usher
- Mike went on a Ross Sea expedition on board the Kapitan Khlebnikov
in 2005.
You can purchase a selection of Mike's pictures
here