WE LOVE GEOLOGY
You will get the best introduction to the area’s geology if you go west from the old heliport into Sisimiut and follow the grawel road, that can be found at the bottom of the Ulkebugt. After crossing the small river, that flows out to the Ulkebugt, that with its fresh water gives many of the locals water for tea, coffee or to fill their waterbottles when they are hiking, the road rises slightly and run around a massive mountain. The rock, which are widespread in the area around Sisimiut, is described as Charnockit, a granite with high content of silica, perthit and hypersthene stones.
Near the end of the road, further into the valley, you find yourself on a plateau above the lake, where you can dig after sand and gravel for use in the town. The gravel plateau is over 20 meters above normal high tide. Here are huge amounts of seashells, barnacles and other marine organisms. The majority of the species is the same as the ones who are living in sea. The plateau is called a marine terrace formed in the coastal zone some time after the ice sheet was melted away from the valley, but the country, which had been pushed down by the ice pressure, has yet risen again.
The little trip into the nature gives a sense of the excitement of the geological work in the area around Sisimiut. Only an area within the quaternary is a problem area, because the beach line location has changed for the last 4000 years.