Assertion: lignite | /r/AtLocation | shale
Facets:
value: at the outcrop
type: LOCATION
value: between layers of sandstone or siltstone
type: LOCATION
Source sentences:
text: Judged by the character of the materials composing the mine dump, the coal or lignite occurred in a shale.
text: At the outcrop, the lignite occurs within shale, between layers of sandstone or siltstone, or is overlain by siltstone and underlain by shale.
text: The lignite occurs in shale exposed in the west-facing bluffs of Smoky Hill River.