U/Pb zircon geochronology of the southern part of the Nabitah mobile belt and Pan-African continental collision in the Saudi Arabian Shield

1985 ◽  
Author(s):  
D.B. Stoeser ◽  
J. S. Stacey ◽  
W.R. Greenwood ◽  
L.B. Fisher
Keyword(s):  
Saudi Arabian ◽  
Continental Collision ◽  
Mobile Belt ◽  
Arabian Shield ◽  
Zircon Geochronology ◽  
Pan African

Pan African ages of some gneissic rocks in the Saudi Arabian Shield

1979 ◽  
Vol 136 (4) ◽  
pp. 455-461 ◽  
Author(s):  
A. Kröner ◽  
M. J. Roobol ◽  
C. R. Ramsay ◽  
N. J. Jackson
Keyword(s):  
Saudi Arabian ◽  
Arabian Shield ◽  
Pan African

SHRIMP U–Pb zircon geochronology of the granitoids of the Imiter Inlier: Constraints on the Pan-African events in the Saghro massif, Anti-Atlas (Morocco)

2019 ◽  
Vol 150 ◽  
pp. 799-810 ◽  
Author(s):  
Bouchra Baidada ◽  
Moha Ikenne ◽  
Pierre Barbey ◽  
Abderrahmane Soulaimani ◽  
Brian Cousens ◽  
...  
Keyword(s):  
Zircon Geochronology ◽  
Pan African

Caractérisation du magmatisme Protérozoïque supérieur en Afrique de l'ouest et implications géodynamiques : des rifts intracratoniques au Panafricain?

1987 ◽  
Vol 24 (1) ◽  
pp. 96-109 ◽  
Author(s):  
P. L. Dupont ◽  
H. Lapierre ◽  
M. Gravelle ◽  
J. M. Bertrand
Keyword(s):  
Carbonate Platform ◽  
Continental Collision ◽  
Greenschist Facies ◽  
Late Proterozoic ◽  
Western Africa ◽  
The North ◽  
Pan African ◽  
Geodynamic Environment ◽  
Unstable Environment ◽  
Afrique De L'ouest

The main petrological, mineralogical, and geochemical features of the metavolcanites belonging to the Late Proterozoic tectono-sedimentary units of southern Mauritanides (Termessé and Niokolo Koba – Koulountou) and western Hoggar, Algeria (Timesselarsine), permit a reconstruction of the geodynamic environment that controlled the evolution of the Pan-African ranges of western Africa. Flows and pyroclastic beds metamorphosed under greenschist-facies conditions are interbedded within detritic and carbonate platform sediments, suggesting an unstable environment in the vicinity of a continental margin.The association of oceanic tholeiites slightly enriched in LREE and basalts more enriched in TiO2, Zr, Nb, and LREE displaying alkalic affinities suggests intracontinental rifting succeeded by expansion. The lack of ultrabasic – basic complexes (oceanic paleosutures) in southern Mauritanides and their occurrence in the Hoggar suggest that the opening was bigger in the north than in the south.The later calc-alkalic sequences of the Niokolo Koba – Koulountou units are tectonically associated with the Termessé unit. In the Timesselarsine unit, calc-alkalic acid rocks coexist with the basic lavas previously mentioned. Thus, the closure of the rift related to a continental collision appears to be later in southern Mauritanides than in the Hoggar.

U–Pb zircon geochronology and Nd–Hf–O isotopic systematics of the Neoproterozoic Hadb adh Dayheen ring complex, Central Arabian Shield, Saudi Arabia

Lithos ◽  
2014 ◽  
Vol 206-207 ◽  
pp. 348-360 ◽  
Author(s):  
Kamal A. Ali ◽  
Heejin Jeon ◽  
Arild Andresen ◽  
Shuang-Qing Li ◽  
Hesham M. Harbi ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Arabian Shield ◽  
Zircon Geochronology ◽  
Ring Complex
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