...Now one lost his footing in theloose shale and slipped back! The Kor-ul-lul were ascending—one hurledhis club at the nearest fugitive... 
Edgar Rice Burroughs 「Tarzan the Terrible」
...The manner of disinterment varies,but much depends on whether the fossillies in comparatively loose shale or is imbeddedin the solid rock, whether the strata are levelor dip downward into the hillside...
Frederic A. Lucas 「Animals of the Past」
...Such a "set," if longestablished, will penetrate through earth, clay, and sub-soil, to somestratum of shale, or sand, or loose rock...
Alfred E. Pease 「The Badger」
...Riffles 8-12 feet wide, 6 inches deep, bottom of flat, fragmented shale; pools having shale and mud bottom; water slightly turbid...
James E. Deacon 「Fishes of the Wakarusa River in Kansas」
...Camp collectedadditional blocks of Rock Lake shale from this second locality...
Joan Echols 「A New Genus of Pennsylvania Fish (Crossoperygii, Coelacanthiformes) from Kansas」
...Specimensare found scattered throughout the Rock Lake shale (see p...
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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