Dictionary of Geotourism

2020 Edition
| Editors: Anze Chen, Young Ng, Erkuang Zhang, Mingzhong Tian

Permian Period

Reference work entry
DOI: https://doi.org/10.1007/978-981-13-2538-0_1863

The Permian Period is the sixth period of the Palaeozoic Era; it lasted for 47 million years, from 290 to 252 million years ago. The Permian System is well developed in central Germany. Its lower part includes a set of red rocks that is known as the Rotliegendia Series, and its upper part is magnesium limestone called the Zechsteinian Series. Because this set of two characteristics are remarkable, Mergel coined it ‘Dyas’ (meaning dual division) in 1859, and it was later called the Permian System. However, as early as 1841, the British geologist Sir R.I. Murchison had discovered marine facies on top of the Carboniferous System at a site called Perm on the western slope of the Ural Mountains in Russia, and he called this unit Permian. The Dyas and Permian were later shown to be the same strata. Since the term Permian was first used, according to the nomenclature rule, the 1937 International Geological Conference formally adopted the name Permian, but the Chinese translation of the dual...

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