Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Þingvellir National Park' has mentioned 'Volcanic' in the following places:
Occurrence Sentence Text Source
xc3x9eingvellir is notable for its unusual tectonic and volcanic environment in a rift valley.
xc3x9eingvellir National Park is located in an active volcanic area, just 49 km east of Reykjavxc3xadk, the capital of Iceland, and covers 24,000 ha, of which 9,270 ha constitute the World Heritage property.