 | Drysdall, Alan R., Jackson, Norman J., Ramsay, Colin R., Douch, Colin J., Hackett, Damien (1984) Rare element mineralization related to Precambrian alkali granites in the Arabian Shield. Economic Geology, 79 (6) 1366-1377 doi:10.2113/gsecongeo.79.6.1366 | Journal (article/letter/editorial) | | rangefrom6 millionmetrictons(JabalTawlahandUmmal Birak)throughñ20 millionmetric tons(JabalSa'id and JabalHamra')...quartzvein sysshield($toeserandElliott, 1980;Roobolet al., 1983). significance etc., containing combinations...various 1979; Stoeserand Elliott, 1980; Jacksonet al., in Ministryfor Mineral Resources,andit hasbeendem-...s(StoeserandElliott, 1980; Jacksonet al., in press). • Saudi Arabian Directorate-Generalof Mineral Resources...the five mineralized intrusions. 368 DHYSDALL ET AL. Main Features of the Five Mineralized Intrusion |  | | Report (issue) | | the microgranite at Jabal Tawlah, Kingdom of Saudi Arabia by I/ I/ Mortimer H. Staatz and Isabelle K...Resources, Deputy Ministry for Mineral Resources, Saudi Arabia This report is preliminary and has not been...THE MICROGRANITE AT JABAL TAWLAH, KINGDOM OF SAUDI ARABIA by I/ I/ Mortimer H. Staalz and Isabelle K....previously has been reported only from Umm al Birak in Saudi Arabia; the USSR; Norway; and the USA. At Jabal...long 35°23'30" E., in the Precambrian shield of Saudi Arabia, about 25 km north-northeast of Ash Sharma, |  | | Journal (article/letter/editorial) | | Central Hijaz Region of the Arabian Shield N.J. Jackson 1, J.N. Walsh 2 and E. Pcgram 2 1 Saudi Arabian...Griffis and McOuat Ltd., P.O. Box 5219, Jeddah, Saudi Arabia 2 Department of Geology, Kings College, Strand...1976; Fleck etal. 1980; Gass 1979, 1981; Roobol et al. 1983). Calc-alkaline plutonism is closely linked...method, are described by Walsh (1980) and Walsh et al. (1981). FeO and F were determined by titration and...tabulated results are given elsewhere* (Jackson et al. in press) and only synoptic tables are given herein |  | | Report (issue) | | MINERAL DEPOSITS OF THE ARABIAN SHIELD, KINGDOM OF SAUDI ARABIA by J. E. Elliott U.S. Geological Survey Open-File...Ministry for Mineral Resources Jiddah, Kingdom of Saudi Arabia 1403 AH 1983 AD 1983 This report is preliminary...MINERAL DEPOSITS OF THE ARABIAN SHIELD, KINGDOM OF SAUDI ARABIA by J. E. EliiottI/ ABSTRACT In the Precambrian...widespread and abundant in the Precambrian shield in Saudi Arabia and include granodiorite, monzogranite, syenogranite...no ecc nomic deposits have yet been found in Saudi Arabia associated with similar granites. However, many |  | | Report (issue) | | TO THE MAP OF PROTEROZOIC GEOLOGY OF WESTERN SAUDI ARABIA BY PETER R. JOHNSON TECHNICAL REPORT SGS-TR-2006-4...Report prepared by the Saudi Geological Survey, Jeddah, Kingdom of Saudi Arabia The work on which this...this report is based was performed in support of Saudi Geological Survey Subproject 4.1.1.1.6 — Compilation...It has been edited and reviewed by staff of the Saudi Geological Survey. Product names used in this report...endorsement by SGS. This report is a product of the Saudi Geological Survey; if the information herein is |  | | Journal (article/letter/editorial) | | (Greenwood et al., 1976; Jackson and Ramsay, 1980; Bokhari and Kramers, 1981; Roobol et al, 1983 ). The...environnients (A1 Shanti and Mitchell, 1976; Bakor et al., 1976), before Correspondence to: Dr. R.A. Agar...proposed (Frisch and A1 Shanti, 1977; Duyverman et al., 1982; Camp, 1984). Alternative models in which... 1976; Hepworth, 1979; Engel et al., 1980; Delfour, 1981; Kemp et al., 1982a). However, such basement...mapping nor supported by radiometric data (Kr/Sner et al., 1979), until U / P b zircon geochronology and Pb-isotope |  | | Journal (article/letter/editorial) | | magmatism to post tectonic alkaline magmatism in Saudi Arabia and West Africa. For the remainder ol the Phanerozoic...Mineralization Phanerozoic Cameron Niger Nigeria Sudan Saudi Arabia Namibia 1. Introduction Most of the African...early Phanerozoic in Saudi Arabia (Drysdall et ul. 1986) and West Africa (Liegeois et al, this volume). Recent...Recent detailed investigations in Saudi Arabia (Drysdall et (11. 1986) has shown that the oversaturated...peralkaline alkali-feldspar granites throughout the Saudi Province in the period from 610-510 Ma (Stoeser |  | | Journal (article/letter/editorial) | | provenance of the Himalayan metamorphic core of Garhwal region, India: Constrained by U–Pb and Hf isotopes in...metamorphosed core of the Himalaya in the Garhwal region of India indicate that the ortho- and paragneiss...zircon U–Pb age spectra from the pGHS in the Garhwal region differs significantly from the U–Pb age spectra...Comparisons of the U–Pb and Hf data from the Garhwal region with potential ~ 1800 Ma source regions show overlap...juxtaposed (e.g. Collins et al., 2003; Cawood et al., 2007). However, Howard et al. (2009) noted that this |  | | Journal (article/letter/editorial) | | post-collisional Jabal Al-Hassir ring complex, Southern Arabian Shield, Saudi Arabia Asaad M.B. Moufti a...Abdulaziz University, P.O. Box 80206, Jeddah 21589, Saudi Arabia Department of Geosciences, Swedish Museum of...Post-collision A-type granite Ring complex Saudi Arabia a b s t r a c t The Jabal Al-Hassir ring complex is located...U–Pb zircon geochronology indicates that the Jabal Al-Hassir ring complex was emplaced at ca. 620 Ma. The...depletion of Ta, Nb, Ba, Sr, P, Eu, and Ti). Jabal Al-Hassir granites are post-collisional plutonic rocks |  | | Journal (article/letter/editorial) | | medium-grained albite/oligoclase framework infilled with quartz, K-feldspar and D muscovite that are variably...variably overgrown by K-feldspar, muscovite, quartz and topaz megacrysts. The PT E increasing number and size...characterized by extensive growth of large Kfeldspar, quartz and muscovite megacrysts at the expense of the...intense replacement of alkali feldspar megacrysts by quartz, development of myrmekitic intergrowth pockets...1995;1997; Badanina et al., 2010; Gu et al., 2010; Dostal et al., 2015; López-Moro et al., 2017). These leucogranites |  | Hargrove, U.S., Stern, R.J., Kimura, J.-I., Manton, W.I., Johnson, P.R. (2006) How juvenile is the Arabian–Nubian Shield? Evidence from Nd isotopes and pre-Neoproterozoic inherited zircon in the Bi'r Umq suture zone, Saudi Arabia. Earth and Planetary Science Letters, 252 (3) 308-326 doi:10.1016/j.epsl.2006.10.002 | Journal (article/letter/editorial) | | inherited zircon in the Bi'r Umq suture zone, Saudi Arabia U.S. Hargrove a,⁎, R.J. Stern a , J.-I. Kimura...City 690-8504, Japan c Saudi Geological Survey, Box 54141, Jeddah 21514, Saudi Arabia Received 24 September...Abstract The Bi'r Umq suture zone (BUSZ) in western Saudi Arabia comprises Neoproterozoic oceanic-arc plutonic...doi:10.1016/j.epsl.2006.10.002 U.S. Hargrove et al. / Earth and Planetary Science Letters 252 (2006)...Arabian–Nubian Shield (ANS), a region of Precambrian basement in Arabia and northeast Africa (Fig. 1) |  | | Report (chapter) | | Geological Survey, PO Box 54141, Jiddah 21514, Saudi Arabia (e-mail: petergeo @dmp.net.sa) 2College of Science...exposed on either side of the Red Sea in westem Arabia and northeastern Africa (Fig. 1), and comprises...East and West Gondwana (Fig. 2; Stern 1994; Kusky et al. 2003). The eastern part of the shield is now preserved...orogenic collapse (Stern 1994; Blasband et al. 2000; Greiling et al. 2000). The growth of the shield lasted...reader is referred to Windley et al. (1996, 2001) and Whitehouse et al. (1998, 2001b) for details on the |  | | Journal (volume) | | McClory . . . . . . . . . . 45 Polymetamorphic, Al, Mg-rich Granulites with Orthopyroxenesillimanite...Tertiary Alkaline Lavas from the Kahuzi- Biega Region, Western Rift, Kivu, Zaire: R. T. Lubala, A. B...an orthopyroxene- si llim anite association from Al-Mg rich granulites within Archaean aluminous metapelites...ic crust overla in by submarine fan deposits and al luvia l fan sediments. Th is sedimentation wh ich...granite/greenstone terrain (c:f Vea rn co,nbe et al. 1986) and comprises volcanic and sedimentary rocks |  | | Book | | Mafic-Ultramafic Magmatism in the Southwest Uganda Region of the African Rift: Implications from Experimental.... . . ... 3 The Crust Under the Canary Islands Region ............. 4 Network of Fractures and Identity...Identity of Vertical Movements in the Canary Islands Region ........................... 4.1 Transoceanic and...in Mali (Caby and Moussu 1967; Black et al. 1979; Fabre et al. 1982), or further east in the Nigerian...with alkaline igneous lavas (McCurry 1975; Fabre et al. 1982). Distribution of the Main Phanerozoic African |  | | Report (volume) | | Neoproterozoic dextral faulting on the Najd Fault System, Saudi Arabia, preceded sinistral faulting and escape tectonics...at this time (e.g. Meert & Powell 2001; Powell et al. 2001). Both models still command strong support...second points out some shortcomings. Pisarevsky et al. synthesized recent palaeomagnetic and geological...separated by two Pan-African orogenic belts. Yoshida et al. present a balanced overview of the Grenvillian-Circum-East...present volume by Bauer et al Fitzsimons et a/., Kusky & Matsah and Yoshida et al Yoshida (1995) and Unrug |  | | Book | | Lutetium z r'• 39 64 65 66 67 68 69 70 71 1.o19 Al 1.053 1.040 1.027 1.015 1.004 0.994 0.985 0.977 ...blue-violet fluorescence ofthe Cumberland fluorites (Billet al. 1967; Bill and Calas 1978). As for the tetravalent...an average distance RE-0 of2.243 A (Gatehouse et al. 1979); some Ce 4 + is apparently associated with... hellandite (Ca,Y)s(Al,Fe3 +) Si4 B4 0 20 (0H) 4 and tadzhikite Ca 3 (Ce,YMTi,Al,Fe3 +)Si4 B4 Ü 22 •...distances respectively of 2.584 and 2.582 Ä (Dal Negro et al. 1977), allowing accommodation oflarge REE: lanthanite-(La) |
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