Abstract
The following article presents the description of seven geological and tourist routes in the southern part of the Danish island called Bornholm. The fi eldwork, which took place during the expedition of the Geography Students’ Scientifi c Group from the Faculty of Earth Sciences, Nicolaus Copernicus University in Toruń, included photographic documentation and the location of rock concentrations by means of a GPS receiver. The researched routes reveal both geological diversity of the island – Precambrian, Palaeozoic, and Mesozoic rocks, as well as tourist sites, such as round churches, historical windmills, rune stones and numerous attractions of major cities of the island.
Highlights
The expedition of the Geography Students’ Scientific Group from the Faculty of Earth Sciences, Nicolaus Copernicus University in Toruń to the Danish island of Bornholm took place between 21st and 27th September, 2012 under the slogan “Bornholm Repeats Itself”
The expedition was inspired by the article by Bernard Cedro and Tomasz Duda entitled “Bornholm’s Geological Attractions” published in The Geological Quarterly in 1996
Based on the descriptions from Cedro and Duda’s article, geological concentrations and interesting tourist sites were documented by means of a GPS Garmin receiver
Summary
The expedition of the Geography Students’ Scientific Group from the Faculty of Earth Sciences, Nicolaus Copernicus University in Toruń to the Danish island of Bornholm took place between 21st and 27th September, 2012 under the slogan “Bornholm Repeats Itself”. Around two-thirds of Bornholm’s area is formed of hard granite and gneiss rock, whereas the remaining third of the island’s area in the south is formed of Palaeozoic and Mesozoic sedimentary rocks, which are highly erosive (largely sandstones, and to a lesser extent slates and limestone) (Fig. 1) This is one of few places in Europe where, on a limited area, one can find rocks from different geological periods. The Cambrian Series 3 is represented by Exulans and Kalby limestone located in the Øle Å River valley These formations are covered with a 1.5 metre thick layer of alum slates, on top of which a thin stratum of stinkstone with phosphorite conglomerates can be found. Nexø boasts of an interesting settlement pattern, with numerous wooden houses and a historical windmill on the northern outskirts of the town
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