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Title: The early cretaceous evolution of carbonate platforms from northern Oman

Abstract

In northern Oman (Jebel Akhdar and foothills) Hauterivian to early Aptian shallow carbonate platforms are widely extending and pass laterally to slope and basin environments in the Nakhl zone. Progradational geometries are identified in that zone where significant correlation between thickness and sediment types supports a prominent tectonic control. The platform records four main sedimentary breaks (drowning events). Early Barremian (lower Lekhwair Formation), Late Barremian (basal Kharaib Formation), lowermost early Aptian (upper Kharaib Formation) and middle Aptian (Shuaiba-Al Hassanat formations boundary). The late Aptian-early Albian hiatus (pre-Nahr Umr unconformity) is regarded as an early Albian tectonically driven erosion. In the Nakhl zone, coral-rudist limestones of late Aptian-early Albian (lower Al Hassanat Formation) document an east-west ribbon platform, the southward extension of which was obscured by the middle Albian erosions and rudist limestones of middle to late Albian (upper Al Hassanat Formation), a lateral equivalent of the Nahr Umr circa littoral shaly sediments, document an east-west-trending linear platform. The foregoing points out a northward progradation coeval with a southward transgressive major trend for the Hauterivian-early Aptian interval, a faulted margin corresponding with the Nakhl zone active during the Aptian-Albian, a late Aptian ribbon platform coeval with the Bab basin initiation southward,more » a regional uplifting and truncation during the early-Albian (Austrian phase), whereas shallow-water carbonates are still forming at the edge of the former platform, and an active linear platform at the northern edge of the Nahr Umr basin, the corresponding drowning contemporaneous with the onset of the Cenomanian platform eastward.« less

Authors:
; ;  [1]
  1. (Univ. of Provence, Marseille (France))
Publication Date:
OSTI Identifier:
6915494
Alternate Identifier(s):
OSTI ID: 6915494
Report Number(s):
CONF-9310237--
Journal ID: ISSN 0149-1423; CODEN: AABUD2
Resource Type:
Conference
Journal Name:
AAPG Bulletin (American Association of Petroleum Geologists); (United States)
Additional Journal Information:
Journal Volume: 77:9; Conference: American Association of Petroleum Geologists (AAPG) mid-continent section meeting, Amarillo, TX (United States), 10-12 Oct 1993; Journal ID: ISSN 0149-1423
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; CARBONATE ROCKS; GEOLOGIC HISTORY; GEOLOGIC FORMATIONS; CONFIGURATION; CRETACEOUS PERIOD; EROSION; GEOLOGY; LIMESTONE; OMAN; RESERVOIR ROCK; SEDIMENTARY BASINS; SEDIMENTS; SHALES; SOURCE ROCKS; TECTONICS; ARAB COUNTRIES; ASIA; DEVELOPING COUNTRIES; GEOLOGIC AGES; GEOLOGIC STRUCTURES; MESOZOIC ERA; MIDDLE EAST; ROCKS; SEDIMENTARY ROCKS 020200* -- Petroleum-- Reserves, Geology, & Exploration; 030200 -- Natural Gas-- Reserves, Geology, & Exploration

Citation Formats

Masse, J.P., Borgomano, J., and Maskiry, S.Al. The early cretaceous evolution of carbonate platforms from northern Oman. United States: N. p., 1993. Web.
Masse, J.P., Borgomano, J., & Maskiry, S.Al. The early cretaceous evolution of carbonate platforms from northern Oman. United States.
Masse, J.P., Borgomano, J., and Maskiry, S.Al. Wed . "The early cretaceous evolution of carbonate platforms from northern Oman". United States.
@article{osti_6915494,
title = {The early cretaceous evolution of carbonate platforms from northern Oman},
author = {Masse, J.P. and Borgomano, J. and Maskiry, S.Al.},
abstractNote = {In northern Oman (Jebel Akhdar and foothills) Hauterivian to early Aptian shallow carbonate platforms are widely extending and pass laterally to slope and basin environments in the Nakhl zone. Progradational geometries are identified in that zone where significant correlation between thickness and sediment types supports a prominent tectonic control. The platform records four main sedimentary breaks (drowning events). Early Barremian (lower Lekhwair Formation), Late Barremian (basal Kharaib Formation), lowermost early Aptian (upper Kharaib Formation) and middle Aptian (Shuaiba-Al Hassanat formations boundary). The late Aptian-early Albian hiatus (pre-Nahr Umr unconformity) is regarded as an early Albian tectonically driven erosion. In the Nakhl zone, coral-rudist limestones of late Aptian-early Albian (lower Al Hassanat Formation) document an east-west ribbon platform, the southward extension of which was obscured by the middle Albian erosions and rudist limestones of middle to late Albian (upper Al Hassanat Formation), a lateral equivalent of the Nahr Umr circa littoral shaly sediments, document an east-west-trending linear platform. The foregoing points out a northward progradation coeval with a southward transgressive major trend for the Hauterivian-early Aptian interval, a faulted margin corresponding with the Nakhl zone active during the Aptian-Albian, a late Aptian ribbon platform coeval with the Bab basin initiation southward, a regional uplifting and truncation during the early-Albian (Austrian phase), whereas shallow-water carbonates are still forming at the edge of the former platform, and an active linear platform at the northern edge of the Nahr Umr basin, the corresponding drowning contemporaneous with the onset of the Cenomanian platform eastward.},
doi = {},
journal = {AAPG Bulletin (American Association of Petroleum Geologists); (United States)},
issn = {0149-1423},
number = ,
volume = 77:9,
place = {United States},
year = {1993},
month = {9}
}

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