Geologists interpret the grey shales rich in fish fossils as the lake deposit.
(Geologists; interpret; the grey shales rich in fish fossils as the lake deposit) Context(Geologists interpret,List([0, 20))):(the grey; shales; rich in fish fossils as the lake deposit)
Geologists interpret,List([0, 20))
Geologists the grey
interpret shales
the grey shales rich in fish fossils as the lake deposit
rich in fish fossils as the lake deposit