Some of the stony nodules in shale have unusual chemical compositions which suggest that they were formed by bacterial decay of organic matter.
(Some of the stony nodules in shale; have; unusual chemical compositions which suggest that they were formed by bacterial decay of organic matter) (unusual chemical compositions; suggest; that they were formed by bacterial decay of organic matter) Context(unusual chemical compositions suggest,List([40, 83))):(they; were formed; by bacterial decay of organic matter)
unusual chemical compositions suggest,List([40, 83))
Some of the stony nodules in shale unusual chemical compositions they
have suggest were formed
unusual chemical compositions which suggest that they were formed by bacterial decay of organic matter
that they were formed by bacterial decay of organic matter
by bacterial decay of organic matter