...He spurred round the same great rock a minute later, and was faced by a blank wall of shale that brought his horse up all standing... 
Talbot Mundy 「King--of the Khyber Rifles」
...The lower one was badenough at best, but it was easy to recognize asleast bad a place where a slope of shale abuttedagainst it, shortening it some 300 feet...
Various 「Hunting in Many Lands」
...The new skeleton of Hesperoherpeton lies in an oblong block oflimy shale measuring approximately 100×60 mm...
Theodore H. Eaton 「A New Order of Fishlike Amphibia From the Pennsylvanian of Kansas」
...The coelacanth fishes from the Rock Lake shale are part of the variedfauna collected from Garnett...
Joan Echols 「A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas」
...In the bed of the river several fragments of jasper and black shale werefound, the latter appearing to belong to the coal formation...
A C and F T Gregory 「Journals of Australian Explorations」
...Descending into a valley with a drycreek fifteen yards wide, the rocks on the south-east slope chertylimestone alternating with thin beds of shale, the strata dipping 20degrees to 30 degrees west...
A C and F T Gregory 「Journals of Australian Explorations」
...We therefore entered the bed of the river toexamine it, and found two seams of coal--one five feet thick and theother about six feet thick--between beds of sandstone and shale...
A C and F T Gregory 「Journals of Australian Explorations」
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