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Gulf of Suez Rift

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449:, marks a change in fault polarity from NE-dipping in the Darag Basin to the north to SE-dipping to the south in the Belayim province. It coincides with the location of the Cretaceous inversion structure, the Wadi Araba anticline. It has been suggested that the presence of this structure acted as a barrier to northward propagation of the rift. Its location may also be partly controlled by the Rehba Shear Zone in the underlying basement. 426: 349: 125: 31: 405:(late Early Miocene, c. 18 Ma). In the Middle Miocene break-up occurred along the whole length of the Red Sea rift with seafloor spreading beginning in the Late Miocene. This break-up was associated with a gradual reduction in the rate of rifting along the Gulf of Suez with most activity stopping by the beginning of the Pliocene. 457:
The Morgan accommodation zone marks a switch in fault polarity from NE-dipping to the north to SW-dipping to the south in the Amal-Zeit province. It also coincides with a marked southward widening of the rift zone. There is no earlier structure known that influenced the location of this accommodation
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age limestones of either the Thebes or Waseiyit Formations. Together with the middle to late Eocene Mokattam Formation this sequence reaches a combined maximum thickness of 500 m. These limestones are followed by continental to locally shallow marine red sandstones of the Tayiba Formation, which
112:. This model is consistent with near orthogonal rifting along the entire length of the rift system. Alternative models that suggest initiation by strike-slip faulting and pull-apart basin development along the axis of the rift have not been supported by detailed studies of the rift geometry. 319:
The deepening of the rift is recorded by the lower Miocene Rudeis Formation. The lower part, consisting of marls and sandstones, is overlain by coarse sandstones and conglomerates reflecting a rapid increase in rift topography at that time. The Kareem Formation saw the first development of
201:. These sequences then pass up into the sandstones of the Abu Thora Formation. In the northern Gulf, at Wadi Araba, the early Carboniferous is overlain by upper Carboniferous of the Rod e Hamal, Abu Darag and Ahmeir Formations. In the southern Gulf the Carboniferous strata are capped by 512:
The best quality reservoir in the Gulf of Suez is the mainly Lower Cretaceous Malha Formation, sometimes known as the 'Nubia' or 'Nubian A'. This pre-rift sequence is present throughout the gulf, and has porosities in the range 13–29 % with permeabilities varying from 70 to 400
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limestones of the uppermost middle Miocene Belayim lie unconformably on the Kareem. More restricted basin conditions continued with the upper Miocene South Gharib and Zeit Formations with deposition of halite with some anhydrite and mudstone, representing the last syn-rift deposits.
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The dominant play type in the Gulf of Suez is tilted fault blocks with pre-rift Early Cretaceous sands sealed by syn-rift sequences and source from the Duwi limestone. Additional discoveries have been made in a wide range of structural, stratigraphic and combined play types.
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strata. The Campanian Duwi Formation, known as the Brown Limestone, was deposited throughout the gulf apart from the uplifted area of the North Galala plateau and Wadi Araba where it is replaced by chalk of the Thelmet Formation. These pass up into Sudr Formation chalks of
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units have a combined thickness of about 500 m. They were deposited in a continental environment except in the northeastern part of the gulf where they become marine. The next preserved sequence is the Umm Bogma or Abu Durba Formations of lower
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pre-rift carbonate (source rock); N, R, K, and B = syn- and post-rift Nukhul, Rudeis, Kareem and Belayim formation (sources, reservoirs, seals and overburden); SG = South Gharib salt (seal and overburden); Z=Zeit (seals and overburden); and PP =
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content (TOC) of 2.6 wt% with some samples measuring up to 21 wt%. In the southern part of the gulf, the Miocene source intervals become important as higher geothermal gradients cause parts of the syn-rift sequence to reach maturity. Marine
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in the Gulf of Suez is the Campanian age Brown Limestone or Duwi Member of the Sudr Formation. This unit is typically 25–70 m thick and is distributed from the southern end of the gulf as far north as Wadi Araba. It contains mainly type II
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The Gulf of Suez rift has been intensively studied by academic groups and by companies as analogue for rift basins in general. This is due to the generally good exposure within the onshore part of the rift coupled with the availability of
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of the Nukhul Formation were deposited in shallow marine conditions as the sea began to flood the developing rift. The Nukhul Formation overlies the Abu Zenima Formation in some place but elsewhere is probably age equivalent, reflecting a
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Towards the end of the Miocene, the Arabian Plate began to collide with the Eurasian Plate leading to changes in the plate configuration, the development of the Dead Sea Transform and cessation in rifting in the Gulf of Suez.
803:"Late Cretaceous (c. 84 Ma) compressive deformation of the stable platform of northeast Africa (Egypt): Far-field stress effects of the "Santonian event" and origin of the Syrian arc deformation belt" 1049: 390:
structures. These structures were mainly active during the Late Santonian but there is evidence of further movements on the same structures at the end of the Cretaceous and during the Paleogene.
1002: 164:. These rocks contain shear zones, such as the Rehba Shear Zone of western Sinai, that are interpreted to have partly controlled the orientation and location of rift structures. 340:
The Pliocene–Recent postrift sequence reaches up to 2000 m in thickness in the southern part of the rift and is formed of interbedded sandstones, limestones and evaporites.
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Khalil, S.M.; McClay K.R. (2001). "Tectonic evolution of the NW Red Sea-Gulf of Suez rift system". In Wilson, R.C.L.; Whitmarsh, R.B.; Taylor, B.; Froitzheim, N. (eds.).
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Rifting began along the whole of the Red Sea -Gulf of Suez rift system during the Late Oligocene. In the Gulf of Suez rift, the rifting culminated during the
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age. These sandstones are up to 400 m in thickness, form an important reservoir in the Gulf of Suez and are known informally as the 'Nubian' sandstone.
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age, which sit apparently conformably on the Cambrian, although the base represents a hiatus of about 150 Ma. The Umm Bogma Formation is
775: 587: 324:, indicating basin restriction, followed by open marine shales, as coarse clastic deposition began to reduce in the middle Miocene. Shales, 1381: 258:
at the end of the Santonian. Structures such as Wadi Araba became uplifted at this time giving rise to folding and local erosion of pre-
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in age, although it is considered to include Permian strata near its base near Wadi Araba. The Qiseib Formation consists of sandstones,
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of alternating polarity. The changes in fault polarity and position from segment to segment are taken up by broad accommodation zones.
382:. This period was mainly quiet tectonically but the northern part of the gulf region was affected by periodic far-field effects of the 1602: 216:
The Qiseib Formation is found throughout the Gulf varying in thickness between 8 m and 300 m. It is thought to be mainly
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The continental sandstones and siltstones of the Abu Zenima Formation represent the earliest syn-rift deposits of late Oligocene (
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Generalised structural cross-section through the Gulf of Suez, just south of the Morgan Accommodation Zone. PZ-LK =
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North of the Gulf of Suez the rift becomes indistinct and its exact geometry uncertain, linking eventually to the
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Raha Formation, a sequence of interbedded shales limestones and sandstone, is succeeded by limestones of the
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until break-up occurred in the middle Miocene, with most of the displacement on the newly developed Red Sea
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Magna Formation is the most important of these younger source rocks with a TOC ranging from 1–2 wt %.
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The upper Cretaceous sequence consists of shallow marine deposits that generally thicken northwards. The
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age are represented by the Esna Shale Formation which overlies the Sudr Formation. This is succeeded by
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The formation of the Red Sea – Gulf of Suez rift system was caused by the anticlockwise rotation of the
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USGS Open-File Report OF99-50-A The Red Sea Basin Province: Sudr-Nubia(!) and Maqna(!) Petroleum System
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age Matullah Formation. The central and northern parts of the gulf were locally affected by a phase of
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USGS Open File Report 99-50-A The Red Sea Basin Province: Sudr-Nubia(!) and Maqna(!) Petroleum Systems
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During the Late Cretaceous to Eocene, the area now occupied by the rift was a shallow sea depositing
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Since the end of the Miocene the area of the Gulf of Suez rift has begun to experience post-rift
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Continental rift zone that was active between the Late Oligocene and the end of the Miocene
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Cambrian rocks of Araba and Naqus Formations occur throughout the region above a planar
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Non-Volcanic Rifting of Continental Margins: A Comparison of Evidence from Land and Sea
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fields and discoveries have been reported from the Gulf of Suez rift with a variety of
383: 161: 1027: 582:. Special Publication. Vol. 187. Geological Society of London. pp. 453–473. 1761: 1672: 1627: 1567: 1524: 1519: 1311: 1157: 1085: 1073: 883: 631: 264: 205: 186: 109: 105: 691:. Mem. Mus. natn. Hist. nat. Vol. Peri-Tethys Memoir 6. Paris. pp. 567–606 1484: 1469: 1459: 1404: 1376: 1361: 1356: 1326: 1132: 1095: 1079: 434: 348: 227:
The Qiseib Formation is overlain by the sandstones of the Malha Formation of upper
173: 154: 146: 82: 70: 635: 905:. Special Publications. Vol. 80. London: Geological Society. pp. 75–102 765: 577: 1582: 1499: 1439: 1424: 1351: 1316: 483: 467: 399: 313: 193:, while the stratigraphically equivalent Abur Durba Formation consists of black 35: 17: 1721: 1706: 1419: 1177: 514: 387: 357: 239: 232: 93: 875: 1741: 1736: 1697: 732:"Development of Accommodation Zones in the Gulf of Suez-Red Sea Rift, Egypt" 425: 353: 325: 321: 284: 272: 271:
sequence was formed during the Campanian/Maastrichtian, continuing into the
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accompanied by flooding of the topographically lowest parts of the rift.
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and linear rift structures are clearly visible on both sides of the gulf
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The Gulf of Suez rift is strongly segmented along its length with
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Wata Formation. This is overlain by sandstones and shales of the
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wells and seismic reflection datasets within the gulf itself.
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10.1130/0091-7613(1999)027<0633:LCCMCD>2.3.CO;2
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age. On the southern margin of the uplifted Wadi Araba, a
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Satellite image of the Gulf of Suez, dark outcrops of the
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Nubia (reservoir rock); UK-EO = Upper Cretaceous to
303:) age. Locally the Abu Zenima Formation is capped by 801:
Bosworth, W.; Guiraud, R.; Kessler II, L.G. (1999).
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Peri-Tethyan Rift/Wrench Basins and Passive Margins
137:The basement consists of Precambrian rocks of the 1001:: CS1 maint: DOI inactive as of September 2024 ( 224:at the base with an overall fining upward trend. 69:(c. 5 Ma). It represented a continuation of the 603:Bosworth, W.; Huchon, P.; McClay, K.R. (2005). 1043: 316:change to marine conditions within the rift. 292:represent the last of the pre-rift deposits. 8: 948: 946: 847:Kuss, J.; Scheibner, C.; Gietl, R. (2000). 796: 794: 748:10.1306/61EEDC10-173E-11D7-8645000102C1865D 675: 1050: 1036: 1028: 759: 757: 708:: CS1 maint: location missing publisher ( 673: 671: 669: 667: 665: 663: 661: 659: 657: 655: 725: 723: 721: 719: 571: 569: 424: 123: 29: 903:Rift Structure: Models and Observations 565: 429:Structural map of the Gulf of Suez rift 994: 701: 53:zone that was active between the Late 976:(inactive 2024-09-13). Archived from 770:. Taylor & Francis. p. 500. 605:"The Red Sea and Gulf of Aden Basins" 128:Stratigraphy of the Gulf of Suez rift 7: 1382:West and Central African Rift System 447:Galala-Abu Zenima Accommodation Zone 1058:Major African geological formations 530:Importance as a rift basin analogue 680:Bosworth, W.; McClay K.R. (2001). 25: 612:Journal of African Earth Sciences 730:Younes, A.I.; McClay K. (2002). 632:10.1016/j.jafrearsci.2005.07.020 1: 445:This zone, also known as the 58: 441:Zaafarana accommodation zone 1799: 1778:Cenozoic rifts and grabens 1196:Central African Shear Zone 767:Geology of Egypt and Libya 77:being accommodated by the 1573:Central Pangean Mountains 1226:Western Meseta Shear Zone 453:Morgan accommodation zone 953:Alsharhan, A.S. (2003). 876:10.2113/geoarabia0503405 537:hydrocarbon exploration 1783:History of the Red Sea 1593:Eastern Rift mountains 1515:Tanzania Coastal Basin 1294:Terra Australis Orogen 430: 370: 180:. These red and white 129: 100:Plate tectonic setting 42: 1608:Great Karas Mountains 1588:Eastern Arc Mountains 1128:Arabian-Nubian Shield 897:Bosworth, W. (1995). 428: 351: 139:Arabian-Nubian Shield 127: 65:) and the end of the 39:Arabian-Nubian Shield 33: 1505:Somali Coastal Basin 1216:Mwembeshi Shear Zone 974:10.1306/062002870143 493:Total organic carbon 299:) to early Miocene ( 108:with respect to the 1683:Teffedest Mountains 1598:Ethiopian Highlands 1289:Pan-African orogens 1259:East African Orogen 1191:Broodkop Shear Zone 1163:West African Craton 1106:Victoria Microplate 868:2000GeoAr...5..405K 819:1999Geo....27..633B 624:2005JAfES..43..334B 491:and has an average 462:Economic importance 1747:List of inselbergs 1717:Jugurtha Tableland 1668:Sankwala Mountains 1663:Rwenzori Mountains 1480:Ouled Abdoun Basin 1475:Orange River Basin 1397:Sedimentary basins 1206:Foumban Shear Zone 1148:Saharan Metacraton 431: 415:thermal subsidence 371: 130: 79:Dead Sea Transform 43: 1755: 1754: 1688:Tibesti Mountains 1648:Mitumba Mountains 1638:Mandara Mountains 1623:Imatong Mountains 1578:Chaillu Mountains 1558:Bambouk Mountains 1495:Rio del Rey Basin 1465:Niger Delta Basin 1450:Iullemmeden Basin 1342:Gulf of Suez Rift 1337:East African Rift 1322:Bahr el Arab rift 1269:Gondwanide Orogen 1201:Chuan Shear Zones 777:978-90-5809-331-8 589:978-1-86239-091-1 49:is a continental 47:Gulf of Suez Rift 16:(Redirected from 1790: 1643:Marrah Mountains 1618:Hoggar Mountains 1613:Guinea Highlands 1603:Great Escarpment 1367:Sangha Aulacogen 1284:Mauritanide Belt 1211:Kandi Fault Zone 1186:Aswa Dislocation 1101:Seychelles Plate 1091:Madagascar Plate 1052: 1045: 1038: 1029: 1007: 1006: 1000: 992: 990: 988: 982: 959: 950: 941: 940: 938: 936: 921: 915: 914: 912: 910: 894: 888: 887: 853: 844: 838: 837: 835: 833: 798: 789: 788: 786: 784: 761: 752: 751: 742:(6): 1003–1026. 727: 714: 713: 707: 699: 697: 696: 686: 677: 650: 649: 647: 646: 640: 634:. 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Index

Araba Formation

Precambrian
Arabian-Nubian Shield
rift
Oligocene
Ma
Miocene
Red Sea Rift
spreading centre
Dead Sea Transform
Gulf of Suez
Manzala rift
Nile delta
Arabian Plate
African Plate

Arabian-Nubian Shield
Gneisses
metasediments
granites
granodiorites
dolerite
dykes
unconformity
peneplaination
sandstone
Carboniferous
dolomitic
shales

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