Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Mammoth Cave National Park' has mentioned 'Sandstone' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Mammoth Cave developed in thick Mississippian-aged limestone strata capped by a layer of sandstone, which has made the system remarkably stable. | WIKI |
| The upper sandstone member is known as the Big Clifty Sandstone. | WIKI |
| Thin, sparse layers of limestone interspersed within the sandstone give rise to an epikarstic zone, in which tiny conduits (cave passages too small to enter) are dissolved by the natural acidity of groundwater. | WIKI |
| The resurgent water from these springs typically flows briefly on the surface before sinking underground again at elevation of the contact between the sandstone caprock and the underlying massive limestones. | WIKI |
| The upper sandstone caprock is relatively hard for water to penetrate: the exceptions are where vertical cracks occur. | WIKI |
| However, the sandstone caprock layer has been dissolved and eroded at many locations within the park, such as the Frozen Niagara room. | WIKI |
| The contact between limestone and sandstone can be found by hiking from the valley bottoms to the ridgetops: typically, as one approaches the top of a ridge, one sees the outcrops of exposed rock change in composition from limestone to sandstone at a well-defined elevation. | WIKI |