Publication Date:
2019-01-21
Description:
In western Greece, the Ionian and pre-Apulian zones represent,
respectively, the basin and the transitional zone (slope) to the
Apulian platform. The Apulian platform constitutes the weakly
deformed foreland of the external Hellenides. The pre-Apulian
zone appears in the Ionian Islands and the eastern Ionian Sea,
whereas the Apulian platform is exclusively found in the Ionian
Sea. The Ionian zone consists of Triassic evaporites, Jurassic–
upper Eocene (mostly pelagic carbonates, minor cherts, and
shales), overlain by the Oligocene flysch. Organic-rich source rocks
occur within Triassic evaporites and Jurassic–Cretaceous pelagic
argillaceous-siliceous rocks. The pre-Apulian zone consists of
Triassic to Miocene deposits, mainly mixed neritic-pelagic carbonates.
Hydrocarbon source rocks include pelagic and hemipelagic
deposits rich in marine organic material, although terrigenous
organic matter is also found in siliciclastic layers. Apulian
platform source rocks are mainly the organic-rich shaleswithin the
Triassic Burano evaporites.
Western Greece contains major petroleum systems, which
extend into the Ionian Sea. Ionian, pre-Apulian, and Apulian
petroleum systems contribute to the probable hydrocarbon accumulations
within the big offshore (Ionian Sea) anticlines.
Western Greece contains important oil and gas shale reservoirs
with a potential of unconventional exploration. Promising
areas for hydrocarbons need systematic and detailed threedimensional
seismic data. Exploration for conventional petroleum
reservoirs, through the interpretation of seismic profiles and
the abundant surface geologic data, will provide the subsurface
geometric characteristics of the unconventional reservoirs. Their
exploitation should follow that of conventional hydrocarbons to
benefit from the anticipated technological advances, eliminating
environmental repercussions.
Type:
Article
,
PeerReviewed
Format:
text
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