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.
Norway's only porcelain factory, Porsgrund's Porcelain Factory, is located in Porsgrunn…
Welcome to a unique porcelain experience in Porsgrunn!
At Porsgrund's Porcelain Factory, you can see how porcelain painters decorate porcelain,…
A hidden pearl right in the center at Porsgrunn City Museum.
The childrens favorite place to visit, lots of activities.
The new church in Porsgrunn, Østre Porsgrunn church, is an architectural gem and has…
Osebro is the best preserved part of Porsgrunn town.
Christian burial grounds, cooking pits and "witches graves".
Teater Ibsen works to create experiences you will remember!
Church ruins after the mighty Dagsætten (ancestry) in Skien. From the 1100s.
M / S Victoria is known as the channel Queen and is regarded as Telemark's flagship. M /…
New, modern fish ladder in down town of Skien.
Snipetorp is Skien's oldest residential after the city fires in 1854 and 1886.
Ibsenhuset is named after Skien's famous son, Henrik Ibsen.