Last Updated：2025/12/30
Sentence
The
petroleum
and
gas
of
eastern
Ohio,
and
by
the
same
token,
of
western
Pennsylvania
and
New
York
are
unquestionably
derived
from
the
great
shale
formation
of
Devonian
and
subcarboniforous
age
that
underlies
this
territory,
and
they
are
stored
in
sandstones
overlying
or
interstratified
with
these
shales."
Quizzes for review
The petroleum and gas of eastern Ohio, and by the same token, of western Pennsylvania and New York are unquestionably derived from the great shale formation of Devonian and subcarboniforous age that underlies this territory, and they are stored in sandstones overlying or interstratified with these shales."
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