shales sentence - shales sentence in Hindi (41-50)

	41.	The deposits, which are the upper and lower boundary shale.
	42.	Black and gray shales of the Precambrian era underlie the town.
	43.	Trace fossils are associated with many Burgess Shale-type deposits.
	44.	They contain xenoliths of the andesite and shale found in Jersey.
	45.	In 1919, the company became a oil-shale industries.
	46.	Since 1965, oil shale usage in Fushun started to decline.
	47.	The spent shale is removed from the top of the retort.
	48.	Alamere Falls tumble over fragile shale cliffs at Alamere Creek Beach.
	49.	It is dangerous to climb because the shale is very crumbly.
	50.	China launched a national shale gas research centre in August 2010.

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