George VI Ice Shelf tributary glaciersThe ice shelf is fed primarily by big ice streams flowing from the Antarctic Peninsula Ice Sheet on Palmer Land. These spectacular features flow between jagged "alpine" peaks, and are heavily crevassed. Alexander Island also has large outlet glaciers, but these are less active and have few crevasses; they contribute little to the area of the ice shelf. | |||
 Crevassed outlet glacier from the Antarctic Peninsula Ice Sheet in the vicinity of Riley Glacier, Palmer Land. |  Horns, cirques and arêtes in the vicinity of Riley Glacier, Palmer Land. |  A short, wide, heavily crevassed glacier near the northern margin of the George VI Ice Shelf, just visible in the background. |  The same glacier showing its crevassed, calving terminus. Sea ice surrounds the icebergs. |
 Cross-cutting crevasses in Riley Glacier, a tributary of George VI Ice Shelf flowing from the Antarctic Peninsula Ice Sheet. |  Total crevassing in Riley Glacier, where intersecting crevasses create numerous isolated ice blocks. |  Wavy transverse crevasses are developed in Riley Glacier as it approaches George VI Ice Shelf. |  Northern margin of a large valley glacier, the Jupiter, flowing from Alexander Island into George VI Ice Shelf. “Pressure ridges” are formed where the glacier impinges on the ice shelf. |
 Southern margin of Jupiter Glacier with pressure ridges. Small cirque glacier on the left. |  Ice-draped peaks feeding Eros Glacier which also flows off Alexander Island into George VI Ice Shelf. The generally smooth surface is interrupted by a belt of crevasses as the glacier flows over a bedrock irregularity. |  Convergence zone of George VI Ice Shelf and an outlet glacier from Alexander Island. Abundant supraglacial lakes occur in this region of ridges and troughs. |  Small alpine glaciers and large outlet glacier on Alexander Island north of Fossil Bluff. The ice shelf is forced away from the island at this point. Jurassic-Cretaceous sedimentary and volcanic rocks form the prominent cliff. |
 Smooth, slow-moving local valley glacier entering the George VI Ice Shelf north of Fossil Bluff. |  Grotto Glacier, a large outlet glacier from the Alexander Island icefields, just north of Ablation Valley. | ||
| Photos Michael Hambrey, November and December 2012. | |||