👁 Image
| 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...chemistry,min- 1979; Stoeserand Elliott, 1980; Jacksonet al., in
mineralization
characeralogy,texture,intrusionmorphology...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 | 👁 Image
| | Report (issue) | | SURVEY
Mineralogy of the microgranite at Jabal Tawlah,
Kingdom of Saudi Arabia
by
I/
I/
Mortimer H. Staatz...Resources,
Deputy Ministry for Mineral Resources, Saudi Arabia
This report is preliminary and has not been...15
MINERALOGY OF THE MICROGRANITE
AT JABAL TAWLAH,
KINGDOM OF SAUDI ARABIA
by
I/
I/
Mortimer H. Staalz...BrownfieTd
ABSTRACT
A study of the mineralogy of the microgranite at Jabal Tawlah was made
principally to identify...tantalum, thorium, and uranium. The mineralized
microgranite forms a sill, and samples are from both surface | 👁 Image
| | 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 Deputy...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 | 👁 Image
| | 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 | 👁 Image
| | 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 | 👁 Image
| | 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 | 👁 Image
| | 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 | 👁 Image
| | Journal (article/letter/editorial) | | 1995;1997; Badanina et al., 2010; Gu et al., 2010; Dostal et al., 2015; López-Moro et al., 2017).
These leucogranites...albitization and topazation (e.g.
Beus et al., 1968; Černý, 1992; López-Moro et al., 2017); or (b) magmatic origin...obsidian in Peru; Barnes et al., 1970; the Transbaikalian ongonites, Kovalenko et al., 1971 and the
Richemont...Richemont rhyolite, Massif Central; Cuney et al., 1992). A magmatic origin for such rare-metal
bearing granites...London, 1987; Mackenzie et al., 1988; Cuney et al., 1992; Taylor, 1992; Fedkin
et al., 2002).
In Egypt, there | 👁 Image
| | Book | | of Saudi Arabia TliE CUS7UDIAN OP lllE 1\1'0 J-IOLY MO.SQU~:S Ktr,,;G FAllll DIN AIU>UL\ZJZ AL SAUO...Ull I. Cao'\\"N Pkl~ AIIUUU.AJI lll!'i AUOIAA7.lZ Al..SAun f)ID'T 01:>'IJTY PIU.\IE Ml~'l\~ A..,_,,...l~L""8 Slf'li"-U s, LTA.."'I 111:r,,,Auun ..w,. AL Su11 l>IPUTY Pw.lMI MtM\111 A.'IIU M1,1.._,a1•...l>11L-..Ct. """u AH,no:o,, Mineral Resources of Saudi Arabia PREFACE This Special Publication summarizes...metalliferous and industrial minerals of the Kingdom of Saudi Arabia. Although the country has a very long history | 👁 Image
| | 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 | 👁 Image
| | 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 | 👁 Image
| | 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 | 👁 Image
| | 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 | 👁 Image
| | 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) | 👁 Image
| | Book | | Witwatersrand goldfields, South Africa (after Tankard et al., 1982). and as much as 2 km wide. The main zone...between 3.5 and 14 g/t Au (Vogel, 1987). (Saager et al., 1987) 400 km southwest of, and the Pietersburg...northeast of, the Witwatersrand goldfields (Meyer et al., 1987). A pyritic gold paleoplacer is near Bahia...in Canada (Roscoe and Donaldson, 1988; Roscoe et al., 1989; Roscoe, 1990; Fig. 1.1-1): Sakami Lake in...and in the Singhbhum craton near Calcutta (Rao et al., 1988). Occurrences of pyritiferous conglomerates | 👁 Image
| | Book (edition) | | and the lanthanides (Spedding 1978; Connelly et al. 2005). The lanthanides are the series of elements...the Oak Ridge National Laboratory) by Marinsky et al. (1947), who used ionexchange chromatography to obtain...the yttrium species in the general holmium–erbium region. The similarity in the outermost electronic arrangement...and Daane 1988; Gschneidner 1990; Gschneidner et al. 1995; McGill 1997). 1.4.1 MeLTING POINT The melting...melting points are likely to be high (Spedding et al. 1968). In small quantities, these impurities can |
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