This observation suggested that the high sulfur concentration measured in 1979 may have resulted from a catastrophic event, perhaps a volcanic eruption.
(the high sulfur concentration; measured; in 1979) (This observation; suggested; that the high sulfur concentration measured in 1979 may have resulted from a catastrophic event) Context(This observation suggested,List([0, 26))):(the high sulfur concentration measured in 1979; may have resulted; from a catastrophic event)
This observation suggested,List([0, 26))
the high sulfur concentration This observation the high sulfur concentration measured in 1979
measured suggested may have resulted
in 1979
that the high sulfur concentration measured in 1979 may have resulted from a catastrophic event
from a catastrophic event