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During the Mesozoic, and especially in the Triassic and Late Cretaceous, and even probably during the Permian, the N-S uplifts and basins of the Arabian Trend were intermittently reactivated, as seen in the Ghawar Anticline, Dibdibah Trough and Qatar Arch. There is even evidence in the Ma'aqala Arch, and by truncation of the Lower Eocene, Rus Formation in Ghawar, that tectonism along the Arabian Trend extended to at least Mid Tertiary times. The prominence of the Hofuf Formation, and its topographic expression over the Ghawar Anticline, indicates that intermittent reactivation of these N-S trends probably continued until the end of the Pliocene. With the NNE drift of the Arabian Plate, and its separation from the African Plate from Oligocene onward (McKenzie 1972), a new set of stress conditions prevailed in basement beneath the Saudi oil fields. In this movement, the Arabian Plate was not only pushed north-northeast but was also stressed in a shear couple formed by the left-lateral, Aqaba- Dead Sea Fault (Freund et alii 1970) and the right-lateral Masirah Fault and Owen Fracture Zone (Jackson et alii 1981).

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Figure 13. Evolution of the Stress Field in the Basement of the Saudi Arabian Oil Field Areas as indicated by the Stress Ellipse.

 

With the greatest principal-stress axis directed NNE towards the Zagros Ranges of southern Iran, two major vertical shears were produced at about N 36° E and N 20° W. The NW direction of vertical shear stress has produced right-lateral, strike-slip faults in the basement parallel to the shoreline of northeastern Saudi Arabia, and roughly parallel to the Najd Fault Zone (Agar 1985) and the axis of the Red Sea. This basement fault trend offsets the axial trace of the Safaniya Anticline in a right-lateral fashion, as shown from running difference gravity.

It is also thought to underlie the Manifa Oil Field, which is a broad, doubly plunging anticline with a NW-SE trend. The Manifa Anticline is also considered to be caused by basement wrench faulting, cutting the Hormuz Series salt beds and giving rise to deep-seated diapirism which has pushed up overlying strata. It is said that the Manifa structure lies near a regional gravity high, but when the regional gradient of gravity is removed it appears as a broad, negative gravity feature.

A whole series of left-lateral, strike-slip faults were also produced in the basement along the N 36° E trend (i.e. Aualitic Trend), as can be clearly seen in southern Iran, where rows of Hormuz Series salt-piercement structures are aligned along this trend (Fürst 1970). These transcurrent basement faults extend southwestward beneath the Persian Gulf and even under the main oil fields of Saudi Arabia, as shown by computer enhancement of gravity residuals in azimuths from 15° to 75° (Fig. 12) by Barnes (1987). In many of the Saudi offshore oil fields, this series of left-lateral basement faults is also evident and has extended up into the Hormuz Series salt beds, causing salt-wall type halokinesis and pushing up overlying strata to form doubly-plunging oil-field anticlines. Some of the Saudi oil fields which have this type of origin are Kurayan, Khafji, Jana, Jurayd and Safaniya. Most probably, the large Abqaiq Field is also of this type, and by removal of the outermost structure contours (Levorsen 1954) it can be seen that the majority of closure on the Arab-D (more than 1,000 ft) forms a distinctive, NE trending brachyanticline, which is difficult to explain except as a deep-seated salt diapir induced by this NE-SW left-lateral, basement wrench-fault trend.

An interpretation of the evolution of the stress field in northeastern Saudi Arabia and the Persian Gulf from Late Proterozoic to Late Cenozoic is shown in Fig. 13 by the changing stress ellipse.

References 

Agar, R.A. 1985. The Najd fault system revisited; a two-way strike-slip orogen. Journal of Structural Geology 9, 41-48.

Aigner, T., & van Vliet, A. 1990. Hierarchy of Depositional Cycles in Epeiric Carbonate Basin-Fills: An Example from Oman (Rub' at Khali Basin Margin). International Geological Congress, 28th, Abstracts 1, 23-24.

Aley, A.A., & Nash, D.F. 1985. A Summary of the Geology and Oil Habitat of the Eastern Flank Hydrocarbon Province of South Oman. Proceedings, Seminar on Source and Habitat of Petroleum in Arab Countries, p. 521-541, O.A.P.E.C, Kuwait.

Al Kadhi, A., & Hancock, P.L. 1980. Structure of the Durma-Nisah segment of the central Arabian graben system. Saudi Arabian Directorate General of Mineral Resources, Bulletin 16, 40p.

Al-Khatieb, S.O. 1981. Detection of surface evidence of sub-surface structures by interpretation methods of Landsat imagery in the sedimentary rocks of central Saudi Arabia. Ph.D. thesis filed as Saudi Arabian Deputy Ministry for Mineral Resources Open-File Report AC-OF-01-1, 417p.

Al-Khatieb, S.O., & Norman, J.W. 1982. A possibly extensive crustal failure system of economic interest. Journal Petroleum Geology 4, 3 19-327.

Al-Laboun, A.A. 1988. The distribution of Carboniferous-Permian siliclastic rocks in the greater Arabian Basin. Geological Society America Bulletin 100, 362-373.

Al-Sawari, A.M. 1980. Tertiary faulting beneath Wadi Al-Batin (Kuwait). Bulletin Geological Society America 29, 610-618.

Al-Shanti, A.M., & Mitchell, A.H.G.I. 1976. Late Precambrian subduction and collision in the Al-Amar Idsas region. Arabian Shield. Journal Geological Society of London 140, 867-876.

Arabian American Oil Company 1959. Ghawar Oil Field, Saudi Arabia. American Association Petroleum Geologists, Bulletin 43, 434-454.

Barnes, B.B. 1987. Recent Developments in Geophysical Exploration for Hydrocarbons. In, Short Course on Hydrocarbon Exploration, KFUPM Press, Dhahran, 12p.

Benzakour, T.M. 1986. Petroleum Geology of the Jawb Oil Field on the Basis of Well Log Analysis. King Fahd University of Petroleum and Minerals, Thesis, 134p. Berberian, M. 1976. Contribution to the Seismotectonics of Iran (part 2). Geological Survey of Iran, Report 39, 516p.

Berberian, M. 1981. Active Faulting and Tectonics of Iran. In, Gupta, H.K., & Delaney, F.M. (eds) Zagros-Hindu Kush-Himalaya Geodynamic Evolution. Geodynamics Series 3, American Geophysical Union, Washington, p. 33-69.

Brown, G. 1972. Tectonic Map of the Arabian Peninsula. Ministry of Petroleum and Mineral Resources. Directorate General of Mineral Resources, Saudi Arabia, Map AP-2.

Brown, G.F., & Coleman, R.G. 1972. The tectonic framework of the Arabian Peninsula. 24th International Geological Congress, Montreal, 1972, Proceedings, Section 3, p.300-305.

Davies, F.B. 1984. Strain Analysis of Wrench Faults and Collision Tectonics of the Arabian-Nubian Shield. Journal of Geology 82, 37-53.

Doornkamp, J.C., Brunsden, D., & Jones, D.K.C. (eds) 1980. Geology, Geomorphology, and Pedology of Bahrain. Geobooks, Norwich, U.K., 443p.

Dunnington, H.V. 1967. Stratigraphical Distribution of Oilfields in the Iraq-Iran-Arabia Basin. Journal Institute Petroleum 53, 129-161.

Dyer, R.A., Husseini, M.I., & Saudi Aramco Exploration Staff 1990. The Western Rub' al Khali Infracambrian Graben System, Saudi Arabia. SPE Dhahran Geological Society Symposium (unpublished).

Edgell, H.S. 1977. The Permian System as an oil and gas reservoir in Iran, Iraq and Arabia. Second Iranian Geological Symposium, Teheran, p. 161-195.

Edgell, H.S. 1987. Regional Stratigraphic Relationships of Arabia in Exploration for Oil and Gas. In, Short Course on Hydrocarbon Exploration, KFUPM Press, Dhahran, p. 1-44.

Edgell, H.S. 1987. Structural Analysis of Hydrocarbon Accumulation in Saudi Arabia. In, Short Course on Hydrocarbon Exploration, KFUPM Press, Dhahran, 26p.

Edgell, H.S. 1987. Stratigraphic Control of Oil and Gas Accumulation in Saudi Arabia. In, Short Course on Hydrocarbon Exploration, KFUPM Press, Dhahran, 23p.

Edgell, H.S. 1987. Geology of Studied Areas. In, KFUPM Ground Water Resources Evaluation in Saudi Arabia, King Fahd University of Petroleum and Minerals, KFUPM Press, Dhahran, p. 24-77.

Falcon, N.L. 1967. The Geology of the north-east Margin of the Arabian Basement Shield. Advancement of Science 24, 31-42.

Falcon, N.L. 1969. Problems of the relationship between surface structure and deep displacements illustrated by the Zagros Range. In, Spencer, A.M. (ed.) Time and Place in Orogeny, Special Publication Geological Society of London, 4,9-22.

Fayyad, A. 1966. Lithofacies of Eastern Arabia. American University of Beirut, M.S. Thesis (unpublished).

Fox, A.F. 1956. Oil Occurrences in Kuwait. 20th International Geological Congress, Mexico, Symposium sobre yacimientos de petroleo y gas 2, 13 1-148.

Freund, R., Garfunkle, Z., Zak, I., Goldberg, M., Weisbrod, T., & Derin, B. 1970. The shear along the Dead Sea Rift, Philosophical Transactions Royal Society London, 267, 107-130.

Frisch, W., & Al-Shanti, A.M. 1977. Ophiolite Belts and the collision of island arcs in the Arabian Shield. Tectonophysics 43, 293-306.

Fürst, M. 1970. Stratigraphic und Werdegang der Ostlichen Zagrosketten (Iran), Erlanger. Geol. Abh., Heft 80, p. 1-51.

Greig, D.A. 1958. Oil Horizons in the Middle East. In, Weeks, L.G. (ed.) Habitat of Oil A Symposium conducted by the American Association of Petroleum Geologists, Tulsa, U.S.A. p. 1182-1193.

Halbouty, M.T. (ed.). Geology of Giant Petroleum Fields. American Association Petroleum Geologists, Mem. No. 14, 556 p.

Hancock, P.L., Al-Khatieb, S.O., & Al-Kadhi, A. 1981. Structural and photogeological evidence for the boundaries to an East Arabian block. Geological Magazine 118, 533-538.

Hancock, P.L., Al-Kadhi, A., & Sha'at, N.A. 1984. Regional joint sets in the Arabian Platform as indicators of intraplate processes. Tectonics 3, 27-43.

Hancock, P.L., & Al-Kadhi, A. 1985. Structure of the Qirdan segment of the Central Arabian Graben System, Kingdom of Saudi Arabia. Deputy Ministry for Mineral Resources, Professional Paper No.PP-2, 63-74.

Hancock, P.L., & Bevan, T.G. 1987. Brittle modes of foreland extension. In, Coward, M.P., Dewey, J.F., & Hancock, P.L. (eds) Continental Extension Tectonics, Geological Society London Special Publication No. 28, 127-137.

Henson, F.R.S. 1951. Observations on the Geology and Petroleum Occurrences of the Middle East. 3rd World Petroleum Congress, The Hague, Proceedings, Section 1, 118-140.

Husseini, M.I. 1988. The Arabian Infracambrian extensional system. Tectonophysics 148, 93-103.

Husseini, M.I. 1989. Tectonic and Deposition Model of Late Precambrian-Cambrian Arabian and Adjoining Plates. American Association of Petroleum Geologists, Bulletin 73, 1117-1131.

Jackson, J.A., Fitch, Ti., & McKenzie, D.P. 1981. Active thrusting and evolution of the Zagros fold belt. In, McClay, K.R., & Price, N.J. (eds.) Thrust and Nappe Tectonics, Geological Society London, Special Publication No.7, 371-379.

Jackson, J.A. 1987. Active normal faulting and crustal extension. In, Coward, M.P., Dewey, J.F., & Hancock, P.L. (eds.) Continental Extensional Tectonics, Geological Society of London, Special Publication No. 28, 3-17.

James, G.A., & Wynd, J.G. 1965. Stratigraphic Nomenclature of Iranian Oil Consortium Agreement Area. American Association Petroleum Geologists, Bulletin 49, 2182-2245.

Johnson, P.R., Scheibner, E., & Smith, A. 1987. Basement fragments, accreted tectonostratigraphic terranes, and overlap sequences; elements in the tectonic evolution of the Arabian Shield. Geodynamics Series, American Geophysical Union 17, 323-343.

Kamen-Kaye, M. 1970. Geology and Productivity of Persian Gulf synclinorium. American Association Petroleum Geologists, Bulletin 54, p. 2371-2394.

Kassler, P. 1973. The Structural and Geomorphic Evolution of the Persian Gulf. In, Purser, B.H. (ed.) The Persian Gulf, Springer Verlag, Berlin, p. 11-32.

Kent, P.E. 1970. The Salt Plugs of the Persian Gulf Region. Transactions Leicester Literary Philosophical Society 64, 55-88.

McClay, K.R., & Ellis, P.G. 1987. Analogue models of extensional fault geometries. In, Coward, M.P., Dewey, J.F., & Hancock, P.L. (eds.) Continental Extensional Tectonics, Geological Society of London, Special Publication, No.28, 109-125.

McKenzie, D. 1972. Active tectonics of the Mediterranean region. Geophysical Journal of the Royal Astronomical Society 30, 109-185.

Millon, R. 1970. Structures géologiques révélées par l'interprétation du levé aéromagnétique du bouclier arabe. Bulletin B.R.G.M. (deuxième série) Section iv, No.2, 15-27.

Mina, P., Razaghnia, M.T., & Paran, Y. 1967. Geological and Geophysical Studies and Exploratory Drilling of the Iranian Continental Shelf, Persian Gulf. 7th World Petroleum Congress, Mexico, Proceedings P.D. 9, No.19, 179-222.

Ministry of Petroleum Resources, Deputy Ministry of Mineral Resources 1984. Geographic Map of the Arabian Peninsula, (showing oil field outlines). Map AP-5B-2; Scale 1:2,000,000; compiled by the United States Geological Survey and the Arabian American Oil Company.

Moore, J. McM. 1979. Tectonics of the Najd Transcurrent Fault System, Saudi Arabia. Journal Geological Society of London 136, 441-454.

Moore, J. McM. 1982. Structure, stratigraphy and mineralization in the southern Arabian Shield - A study in satellite-image interpretation, Precambrian Research 16, abstract, 53-54.

Moore, J. McM. 1983. Tectonic Fabric and Structural Control of Mineralization in the Southern Arabian Shield: A Compilation based on Satellite Imagery Interpretation, Deputy Ministry for Mineral Resources, Open File Report USGS-OF-03-105, 61p.

Morris, P. 1977. Basement structure as suggested by aeromagnetic surveys in S.W. Iran, Second Geological Symposium of Iran, Proceedings Iranian Petroleum Institute, Teheran.

Murris, J.J. 1980. Middle East; Stratigraphic Evolution and Oil Habitat, American Association Petroleum Geologists, Bulletin 64, 597-618.

Nelson, P.H. 1968. Wafra Field-Kuwait-Saudi Arabia Neutral Zone. Second Regional Technical Symposium, Society of Petroleum Engineers, Saudi Arabia Section, Dhahran, 16p.

North, F.K. 1985. Petroleum Geology. Allen and Unwin, Boston, 607 p.

O'Brien, C.A.E. 1957. Salt Diapirism in South Persia. Geologie en Mijnbouw, (N.W. Ser), 19, 357-376.

Onyedim, G.C., & Norman, J.W. 1986. Some Appearances and Causes of Lineaments seen on Landsat Images, Journal Petroleum Geology 9, 179-194.

Perrodon, A. 1983. Dynamics of Oil and Gas Accumulations. Bulletin Centre de Recherches Exploration- Production, Elf Aquitaine, Memoir 5, 360 p.

Picard, L. 1970. On Afro-Arabian graben tectonics. Geologisches Rundschau 59, 337-381.

Player, R.A. 1969. Salt Plug Study, Iranian Oil Operating Companies, Geological and Exploration Division, Report No. 1146, (unpublished), 123 p.

Powers, R.W., Ramirez, L.F., Redmond, C.D., & Elberg, E.L. Jr. 1966. Geology of the Arabian Peninsula-Sedimentary Geology of Saudi Arabia. U.S. Geological Survey, Professional Paper 560-D, 147 p.

Powers, R.W. 1968. Saudi Arabia (excluding Arabian Shield) Asie. In, Lexique Stratigraphique International, 3, Paris CNRS, 177 p.

Rönnlund, P., & Koyi, H. 1988. Fry spacing of deformed and undeformed modeled and natural salt domes, Geology 16, 465-468.

Sha'ath, N.A. 1986. The structure of the Majma'ah graben complex, Unpublished Ph.D. thesis, University Bristol.

Steineke, M., Bramkamp, R.A., & Sander, N.J. 1958. Stratigraphic Relations of Arabian Jurassic Oil, In, Weeks, L.J. (ed.) Habitat of Oil Tulsa, American Association of Petroleum Geologists Symposium, p. 1294-1329.

Steineke, M., Harris, T.F., Parsons, K.R., & Berg, E.L. 1958. Geologic map of the Western Persian Gulf quadrangle, Kingdom of Saudi Arabia, United States Geological Survey Investigations, Map 1- 208A, Scale 1:500,000.

Stewart, I.C.F., & Hargan, B.A. 1990. Enhancement and interpretation of gravity and magnetics data in the Arabian Peninsula, Society of Petroleum Engineers, Dhahran Geological Society Symposium (unpublished).

Stöcklin, J. 1968. Structural history and tectonics of Iran: a review. American Association Petroleum Geologists. Bulletin 52, 1229-1258.

Sugden, W. 1962. Structural analysis and geometrical prediction for change of form with depth of some Arabian plains-type folds, American Association Petroleum Geologists, Bulletin 46, 22 13-2228.

Talbot, C.J., & Jarvis, RJ. 1984. Age, budget and dynamics of an active salt extension in Iran. Journal of Structural Geology 6, 52 1-533.

Trusheim, F. 1974. Zur Tektogenese der Zagros-Ketten, Süd-Irans, Zeitschrift Deutschen geologischen Gesellsehaft 125, 119-150.

United States Geological Survey Staff and Arabian American Oil Company Staff 1963. Geologic Map of the Arabian Peninsula, United States Geological Survey Miscellaneous Geologic Investigations, Map 1-270A; Scale 1:2,000,000.

Waite, M.W., Dyer, R.A., & Simms, S.C. 1990. Seismic stratigraphy modeling of Central Arabia, Society of Petroleum Engineers, Dhahran Geological Society Symposium (unpublished).

Wissmann, H. von, Rathjens, C., & Kossmat, F. 1942, Beiträge zur Tektonik Arabiens, Geologisches Rundschau 33, 221-353.

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EDGELL, H.S. (1992) –

Basement tectonics of Saudi Arabia as related to oil field structures. In: M.J. Rickard et alii (eds.), Basement Tectonics 9, Kluwer Academic Publishers, Dordrecht, p. 169-193, 1 table, 13 figures.

  with kind permission from Kluwer Academic Publishers

 

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