Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Kenya Lake System in the Great Rift Valley' has mentioned 'Volcanic' in the following places:
Occurrence Sentence Text Source
Some of the soils are Andisols, fertile soils from relatively recent volcanic activity.
These lakes are found on the floor of the Great Rift Valley where major tectonic and/or volcanic events have shaped a distinctive landscape.
Surrounded by hot springs, geysers and the steep escarpment of the Rift Valley with its volcanic outcrops, the natural setting of the lakes provides an exceptional experience of nature.
The natural setting of all three lakes surrounded by the steep escarpment of the Rift Valley and associated volcanic features provides an exceptional experience of nature.