Greenland is the largest island on Earth. Only one-fifth of its surface area is exposed bedrock, the rest being covered by ice. The exposed surface is approximately 410,000 km2. Its geology is dominated by crystalline rocks of the Precambrian Shield. The geology of the Nuuk/Qeqertarsuatsiaat area consist of some of the oldest bedrock in Greenland which cover most of the western Greenland. The surface has been altered several times and has an appearance as it were shaped billions of years back in time. This is one the reasons why the Nuuk area is extraordinary and also because the particular climatezone for the area resulting in a limited vegetation makes it possibly to observe the contexture in a large scale. The bedrock around Nuuk consist of rock nearly as old as the area around Isukasia