Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Trang An Landscape Complex' has mentioned 'Karst' in the following places:
Occurrence Sentence Text Source
It is composed of a variety of classical karst cones and towers and a network of enclosed depressions connected by an intricate system of subterranean waterways, some of which are navigable by small boats.
Deep dissection of an uplifted limestone massif over a period of five million years has produced a series of classical karst landforms, including cones, towers, enclosed depressions (cockpits), interior-draining valleys (poljes), foot- caves and subterranean cave passages decorated with speleothems.
The presence of transitional forms between xe2x80x98fengcongxe2x80x99 karst with ridges connecting towers, and xe2x80x98fenglinxe2x80x99 karst where towers stand isolated on alluvial plains, is an extremely significant feature of the property.
Trang An is an unusual autogenic karst system, being rain-fed only and hydrologically isolated from rivers in the surrounding terrain.