The younger granites and ring complexes of the Southeastern Desert of Egypt and their relation to mineralization

1987 ◽  
Vol 6 (5) ◽  
pp. 745-754 ◽  
Author(s):  
Mostafa M. Soliman
Keyword(s):  
Southeastern Desert ◽  
Ring Complexes

The ring complexes of the Eastern Desert of Egypt

1985 ◽  
Vol 3 (1-2) ◽  
pp. 77-82 ◽  
Author(s):  
M.F. El Ramly ◽  
A.A.A. Hussein
Keyword(s):  
Eastern Desert ◽  
Ring Complexes

On an Occurrence of Fayalite Quartz-Monzonite in the Basement Complex around Bauchi, Northern Nigeria

1961 ◽  
Vol 98 (6) ◽  
pp. 473-482 ◽  
Author(s):  
M. O. Oyawoye
Keyword(s):  
Linear Structure ◽  
Northern Nigeria ◽  
Basement Complex ◽  
Green Colour ◽  
Quartz Monzonite ◽  
Ring Complexes ◽  
High Level ◽  
Mineral Constituents ◽  
Ring Dyke

AbstractAn unusual fayalite-bearing quartz-monzonite occurs around Bauchi in Northern Nigeria and is distinguished from the high-level fayalite granites of the Newer Granites ring complexes by the presence of a linear structure conformable with those in the surrounding rocks, the gradational nature of its contacts, the extreme coarseness of its mineral constituents and the abundance of myrmekite. It is similar to them in its distinctive green colour and in the high FeO: Fe2O3 ratio. The rock is believed to be definitely older than the rocks of the ring-dyke complexes.

scholarly journals Rotational analysis of naphthol-aromatic ring complexes stabilized by electrostatic and dispersion interactions

2022 ◽  
Author(s):  
María Mar Quesada-Moreno ◽  
Melanie Schnell ◽  
Daniel A. Obenchain
Keyword(s):  
Aromatic Ring ◽  
Substitution Effects ◽  
Rotational Analysis ◽  
Dispersion Interactions ◽  
Aromatic Species ◽  
Ring Complexes ◽  
Species Substitution

For complexes involving aromatic species, substitution effects can influence the preferred geometry.

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