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Bir Umq

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Series: Geological Society, London, Special Publications
Published: 01 January 2003
DOI: 10.1144/GSL.SP.2003.218.01.33
EISBN: 9781862394667
.... The ophiolites within the Yanbu and Bir Umq suture zones in the west are among the oldest (870–740 Ma) in the Shield, locally show a Penrose-tyep complete pseudostratigraphy, and have chemical compositions typical of modern forearc oceanic crust. They are spatially associated with coeval and younger volcanic arc...
Journal Article
Journal: Geology
Published: 01 April 1987
Geology (1987) 15 (4): 320–323.
... Arabian Shield, show that the ophiolites are among the oldest oceanic rocks in each terrane, support near- or within-arc tectonic settings for the ophiolites, suggest that the Bir Umq suture extends north along the Nabitah mobile belt into the northern shield, and suggest that older (>1250 Ma...
Journal Article
Published: 01 May 1984
Journal of the Geological Society (1984) 141 (3): 537–546.
... island arc sequence composed largely of andesitic-rhyodacitic volcanic rocks of tholeiitic transitional to calc-alkaline affinity. Regional studies indicate that the Thurwah mass lies in a NE-SW zone of ophiolite complexes extending from Bir Umq, 150 km to the NE, to the Khor Nakasib and Wadi Amur bodies...
Journal Article
Published: 01 December 1993
Journal of the Geological Society (1993) 150 (6): 1065–1074.
.... Ahmed F. Age limit for major shearing episodes in the Nubian Shield of NE Sudan Journal of African Earth Sciences 1989 9 489 496 Al Rehaili M. H. Warden A. J. Comparison of the Bir Umq and Hamdah ultrabasic complexes, Saudi Arabia Institute of Applied Geology Bulletin, King...
Journal Article
Published: 01 June 1991
Journal of the Geological Society (1991) 148 (3): 600–606.
...), the other with an age of c. 750 Ma. (AI Qarah). The Junaynah age suture therefore appears to transect the Nabitah ophiolite suture . In neither case are the ophiolites confined to the terrane boundary. In the case of the supposed Bir Umq-Thurwah-Nakasib suture , it is also worth noting that (1...
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1989
AAPG Bulletin (1989) 73 (9): 1117–1131.
... ceased by 715 Ma, when suturing between the Asir and the Hijaz terranes may have occurred along the Bir Umq suture ( Figure 2 ). The Bir Umq suture consists of highly deformed rocks, including ophiolites ( Rehali and Warden, 1980 ; Naseef et al, 1984 ), and continues for at least 150 km into Sudan...
FIGURES
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Journal Article
Published: 01 February 1990
Journal of the Geological Society (1990) 147 (1): 41–57.
..., Jebel a1 Wask; BU, Bir Umq; T, Jebel Thurwah; B, Bishah; SH, Sol Hamed; G, Gebel Gerf; 0, Onib; AH, Allaqi-Heini B.; N, Nakasib; Bk, Barka; Q, Qala a1 Nahal; Nu, Nuba; By, Bayuda; I, Ingessana; TD, Tulu Dimtu; Y, Yubdo; Ak, Akobo; So, Soka; A, Adola; My, Moyale; AQ, Abdul Qadr; Ma, Mait; Mr, Moroto; S...
Journal Article
Published: 01 February 1983
Journal of the Geological Society (1983) 140 (1): 75–95.
... 2 215 40 Al-Rehaili M. H. Warden A. J. Comparison of the Bir Umq and Hamdah ultrabasic complexes, Saudi Arabia I.A.G., Bull. Jeddah 1980 3 143 56 Al-Shanti A. M. S. Mitchell A. H. G. Late Precambrian subduction and collision in the Al-Amar-Idsas region, Arabian...
Journal Article
Journal: GeoArabia
Publisher: Gulf Petrolink
Published: 01 January 2005
GeoArabia (2005) 10 (1): 97–124.
... Shear Zone. Instead, the margin is composed of a series of en-échelon, down to the west–southwest, concave listric faults that appear to tip out into the Yanbu and Bir Umq Pan-African sutures that have localized accommodation zones. The formation of accommodation zones along the sutures may be due...
FIGURES
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Journal Article
Published: 01 May 2000
Journal of the Geological Society (2000) 157 (3): 615–628.
... of ophiolitic rocks have been observed ( Table 3) and these were interpreted as sutures (e.g. Ries et al. 1983; Vail 1985; Abdelsalam & Stern 1996). The Al Amar, Yanbu and Bir Umq Belts represent examples of the ophiolitic linear belts in the Late Proterozoic shield of Saudi Arabia ( Fig. 1...
FIGURES
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Journal Article
Journal: Economic Geology
Published: 01 December 2022
Economic Geology (2022) 117 (8): 1985–1987.
..., and Theophilus Amponsah article 104504 Formation of gold-bearing listvenite in the mantle section of the Neoproterozoic Bir Umq ophiolite, Western Arabian Shield, Saudi Arabia Hisham A. Gahlan, Mokhles K. Azer, Paul D. Asimow, and Khaled M. Al-Kahtany article 104517 JOURNAL OF APPLIED GEOPHYSICS Vol. 199, 2022...
Journal Article
Published: 01 September 1989
Journal of the Geological Society (1989) 146 (5): 883–884.
...; Hashad 1980), as well as the new 881 f 58 Ma age cited by us. Sm-Nd, U-Pb zircon and Rb-Sr isochron ages for NW Arabia include 782 Ma for the Jabal Ess gabbro (Claesson et al. 1984), 740-780 Ma for the Yaubu ophiolites and 820-870 Ma for the Bir Umq gabbros (Pallister et al. 1988). The suggestion...
Journal Article
Published: 01 September 1980
Journal of the Geological Society (1980) 137 (5): 617–628.
.... Warden A. A comparison of the Bir Umq and Hamdah ultrabasic complexes, Sauda Arabia Bull. Inst. Appl. Geol. Jeddah 3 4 in press Rexworthy S. R. Geology and mineralisation of the Precambrian metavolcanics and intrusives of the Jabal Samran–Wadi Hawarah region of the southern Hijaz 1972...
Journal Article
Published: 01 July 2023
The Journal of Geology (2023) 131 (4): 289–311.
... of Egypt: insights into geodynamic evolution and post-melting alteration processes . Acta Geol. Sin. 95 : 1139 – 1157 . Abuamarah , B. A. 2020 a . Geochemistry and fore-arc evolution of upper mantle peridotites in the Cryogenian Bir Umq ophiolite, Arabian Shield, Saudi Arabia . Int. Geol...
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Journal Article
Published: 01 January 2012
Seismological Research Letters (2012) 83 (1): 49–58.
... from the western part of the Arabian shield, and the Afif terrane and the Amar arc of the Ar Rayn microplate from the eastern side of the shield. The western fusion is along the Bir Umq and Yanbu sutures ( Looseveld et al. 1996 ). The eastern accretion may have started by about 680–640 million years...
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Journal Article
Published: 01 June 1994
Journal of the Geological Society (1994) 151 (3): 485–497.
... belt, approximately 60 km wide, which extends from near the Nile in'the SW to the Red Sea coast in the NE (Fig. 1). It was first named by Embleton et a l . (1983) and its continuation into Arabia is known as the Bir Umq suture (Vail 1985; Stoeser & Camp 1985; Kroner et al . 1987; Pallister et al. 1988...
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 09 August 2017
Lithosphere (2017) 9 (5): 759–773.
... the first (890–710 Ma) accretion stage ( Fritz et al., 2013 ), comprising the Barka-Ad Damm, Nakasib-Bir Umq, and Allaq–Haiani–Onib–Sol Hamed–Yanbu sutures from south to north ( Johnson and Woldehaimanot, 2003 ). Figure 11. Pan-African structural trends of the Afro-Arabian shield, including major...
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Journal Article
Journal: GeoArabia
Publisher: Gulf Petrolink
Published: 01 April 2001
GeoArabia (2001) 6 (2): 271–334.
... along the Yanbu and Bir Umq sutures in Saudi Arabia Zulfiqar, A., King Fahd U., Saudi Arabia Ophiolites of Saudi Arabia are amongst the less abundant and presently lesser-known ophiolites of Proterozoic age. Ophiolites of Saudi Arabia mostly outcrop discontinuously along the suture zones...
Journal Article
Published: 01 December 1989
Journal of the Geological Society (1989) 146 (6): 1017–1029.
...- ment in northeast Africa and Arabia, showing the principal tectonic elements discussed in the text. Note the distribu- tion of major suture zones as discussed in the text: AH, Allaqi-Heiani suture; SH, Sol Hamed-Onib suture; N, Nakasib suture; Y, Yanbu suture; B, Bir Umq suture; NA; Nabitah suture; Y...
Journal Article
Published: 01 April 1993
Journal of the Geological Society (1993) 150 (2): 393–404.
...-trending Oko shear zone (Fig. 2). This offset is estimated to be about 30 km in a sinistral sense (Almond & Ahmed 1987). The Nakasib suture is thought o continue into Arabia as the Bir Umq suture (Vail 1983, 1985; Embleton et al. 1984; Camp 1984; Stoeser & Camp 1985; Kroner et al. 1987; Almond & Ahmed 1987...