This fault is clearly visible where the river "Ælva" run into a fault zone, and the city of Porsgrunn grew up along the river's banks. If one looks further to the south, one sees that it sparkles from the many smaller water bodies that lie in the depression that the fault formed in the landscape. We can follow this depression all the way to Kristiansand.
In the Langesundsfjord-Eidanger area, there are many rare minerals. Many of these were first discovered and described here, and the occurrence are known among geologist in many parts of the world. One of these mineral is thorite, discovered in the 1928 at Løvøya. Thorite contains the until then unknown element thorium, which was named after the Norwegian god Thor.
As in Skien, many of the deposits in Porsgrunn are limestone's that were formed at the bottom of a tropical sea about 450 million years ago. This limestone, which is full of fossils, is selected for industrial use for example by Norcem in Brevik. The limestone from Porsgrunn is used in cement, but generally it can be used for much else, for example, in plastics, paper and toothpaste
As the first geopark in Scandinavia, Gea Norvegica became member of the Global Geoparks…
Learn more about the natural history of our planet.
Welcome to a unique porcelain experience in Porsgrunn!
Norway's only porcelain factory is located in Porsgrunn.
You can visit the factory and see the skilled artisans at work.
Everything from coffee cups to magnificent art vases.
A hidden pearl right in the center at Porsgrunn City Museum.
Welcome to a pearl in Porsgrunn.
The childrens favorite place to visit, lots of activities.
The only Catholic church in Telemark, built in the "dragon style" in 1899.
Kunsthall Grenland is an art gallery in Porsgrunn with regional status, which wish to…
Osebro is the best preserved part of Porsgrunn town.
Porsgrunn Mule Varde is situated by hihgway E18 between Nystrand and Skjelsvik.
"Group 9" was founded in 1969. That year was the first summer exhibition held in the…
Brevik Town Museum is open every Sunday this summer
Welcome to a historic digital tour in Brevik.