Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Chaîne des Puys - Limagne fault tectonic arena' has mentioned 'Volcanic' in the following places:
Occurrence Sentence Text Source
The chain is about 40xc2xa0km (25xc2xa0mi) long, and the identified volcanic features include 48 cinder cones, eight lava domes, and 15 maars and explosion craters.
[1] The name of the range comes from a French term, puy, that refers to a volcanic mountain with a rounded profile.
The chain began to form approximately 95,000 years ago, and the volcanic activity that formed the range stopped about 10,000 years ago.
Before 1750 and the chain's identification as volcanic, the Puys were rumored to be man-made mounds of mining waste or Roman forge furnaces.
In 1827 he published his Memoir on the Geology of Central France, including the Volcanic formations of Auvergne, the Velay and the Vivarais, which was later re-published in a revised and somewhat more popular form in The Geology and extinct Volcanos of Central France in 1858.
It also contains a young volcanic field, relatively unaffected by erosion, exhibiting the complete spectrum of typical magmas in rift zones.