718
Chapter 14 Hydrocarbons and Coal
b
JURASSIC (INClUDING
KIMMERIDGIAN SOURCE ROCKS)
BASEMENT
DEVONIAN AND ROT LIEGEND
Fig. 14.11. a Oil and gas fields in the rift zone of the
North Sea with mature Kimmeridgian source rocks.
(After Demaison 1985, modified). b Cross section of
14.3.4 Carbonate Shelves: the Middle East
OU Province
This hydrocarbon habitat is demonstrated here by an
example of a large shelf sea which was later incorporated into a foredeep. It represents the richest hydrocarbon province of the world, the Middle East oil
province around the ArabianIPersian Gulf (Fig.
14.l2a).
ZECHSTEIN SALT
TRIASSIC
the central North Sea showing fault blocks and oil
fields in structural highs or on flanks of salt dome.
(After Ziegler 1982)
During the Mesozoic this area was characterized
by a broad stable platform on the southwestern side
of the Tethys ocean. On the landward side of the
platform, ramp-type, mixed carbonate-c1astic units
were deposited during regressive phases. The central
and northeastern, seaward parts of the shelf were
differentiated into broad regional highs, horsts, tilted
faultblocks, and salt swells. These areas were dominated either by carbonate sediments accumulated un-
Chapter 14 Hydrocarbons and Coal
b
JURASSIC (INClUDING
KIMMERIDGIAN SOURCE ROCKS)
BASEMENT
DEVONIAN AND ROT LIEGEND
Fig. 14.11. a Oil and gas fields in the rift zone of the
North Sea with mature Kimmeridgian source rocks.
(After Demaison 1985, modified). b Cross section of
14.3.4 Carbonate Shelves: the Middle East
OU Province
This hydrocarbon habitat is demonstrated here by an
example of a large shelf sea which was later incorporated into a foredeep. It represents the richest hydrocarbon province of the world, the Middle East oil
province around the ArabianIPersian Gulf (Fig.
14.l2a).
ZECHSTEIN SALT
TRIASSIC
the central North Sea showing fault blocks and oil
fields in structural highs or on flanks of salt dome.
(After Ziegler 1982)
During the Mesozoic this area was characterized
by a broad stable platform on the southwestern side
of the Tethys ocean. On the landward side of the
platform, ramp-type, mixed carbonate-c1astic units
were deposited during regressive phases. The central
and northeastern, seaward parts of the shelf were
differentiated into broad regional highs, horsts, tilted
faultblocks, and salt swells. These areas were dominated either by carbonate sediments accumulated un-