Geochemical characterization of Granitoids in Katchuan Irruan area: further evidence for peraluminous and shoshonitic compositions and post-collisional setting of granitic rocks in the Precambrian Basement Complex of Nigeria

2019 ◽  
Vol 38 (5) ◽  
pp. 734-752 ◽  
Author(s):  
Chinedu U. Ibe ◽  
Smart C. Obiora
Keyword(s):  
Granitic Rocks ◽  
Precambrian Basement ◽  
Basement Complex ◽  
Geochemical Characterization

scholarly journals Petrographic and geochemical characterization of the granitic rocks of the Araguainha impact crater, Brazil

2016 ◽  
Vol 51 (3) ◽  
pp. 443-467 ◽  
Author(s):  
Dailto Silva ◽  
Cristiano Lana ◽  
Carlos Roberto de Souza Filho
Keyword(s):  
Impact Crater ◽  
Granitic Rocks ◽  
Geochemical Characterization

scholarly journals Geochemical Characterization of Mineralized Pegmatites around Wowyen Areas, Akwanga, Northcentral Nigeria

2022 ◽  
Vol 4 (1) ◽  
Author(s):  
Anthony Chukwu
Keyword(s):  
Inductively Coupled Plasma ◽  
Field Studies ◽  
Rare Metal ◽  
Basement Complex ◽  
Tectonic Event ◽  
Geochemical Characterization ◽  
Inductively Coupled ◽  
Rare Elements ◽  
Plasma Mass Spectrometry

This study aims to account for the petrogenesis and mineralization of pegmatites around the Wowyen area, northcentral basement complex,Nigeria. Field studies, petrography and whole rock geochemistry (Major oxides were estimated by X-Ray Fluorescence while the trace elements were estimated by Inductively Coupled Plasma Mass Spectrometry) where the methods adopted. The pegmatites around Wowyen area are emplaced in the remobilized belt of the Nigerian Basement complex. They are predominantly complex pegmatites (rare-metal pegmatites) which are intruded in the biotite-muscovite gneiss while the simple pegmatites intruded more in the migmatitic banded gneiss. The major components of the complex pegmatites are quartz, albite and muscovite and tourmaline.The accessory constituents are garnet; ilmenites; cassiterite-columbitetantalite oxides in contrast to quartz, microcline and biotite of the simple pegmatites. The complex pegmatites show higher peraluminous than the simple pegmatites, however, higher fractionation is observed in the complex pegmatites than the simple pegmatites. The complex pegmatites are rather enriched in rare elements such as Li, Rb, B, Cs, Sn, Nb, Be and Ta and show low ratios in Al/Ga and K/Rb than the simple pegmatites. The pegmatites are likely product of sedimentary origin and originated from post-collisional tectonic event.

Electromagnetic Profiling for Groundwater in Precambrian Basement Complex Areas of Nigeria

1990 ◽  
Vol 21 (3) ◽  
pp. 205-216 ◽  
Author(s):  
A. Idowu Olayinka
Keyword(s):  
Water Supply ◽  
Complex Terrain ◽  
High Conductivity ◽  
The Other ◽  
Precambrian Basement ◽  
Basement Complex ◽  
Rural Water Supply ◽  
Well Yield ◽  
Rural Water ◽  
Borehole Drilling

Ground electromagnetic profiling, using a Geonics EM34-3 instrument, has been employed to identify areas of high conductivity in a Precambrian basement complex terrain of Nigeria. Field examples, conducted as part of a rural water supply programme, are presented. They indicate that the apparent conductivities are generally lower than about 60 mmho m−1. Subsequent borehole drilling suggests a good correlation between high EM34 anomalies, deep weathering and high well yield (> 1 1 s−1). On the other hand, boreholes sited on conductivity lows penetrated a thinner regolith with relatively lower yields.

HIGH ENERGY SYNCHROTRON X-RAY MICROSPECTROSCOPY FOR GEOCHEMICAL CHARACTERIZATION OF TERRESTRIAL AND EXTRATERRESTRIAL SAMPLES

2016 ◽  
Author(s):  
Antonio Lanzirotti ◽  
◽  
Stephen R. Sutton ◽  
Matt Newville ◽  
Jeffrey P. Fitts ◽  
...  
Keyword(s):  
High Energy ◽  
Geochemical Characterization ◽  
X Ray

PETROLOGICAL AND GEOCHEMICAL CHARACTERIZATION OF THE SAN JUAN DE OTATES ULTRAMAFIC COMPLEX, LEÓN, GUANAJUATO: TECTONIC IMPLICATIONS

2020 ◽  
Author(s):  
Nathalia Pineda rodriguez ◽  
◽  
Vanessa Colás ◽  
Vanessa Colás ◽  
José María González-Jiménez ◽  
...  
Keyword(s):  
San Juan ◽  
Geochemical Characterization ◽  
Tectonic Implications ◽  
Ultramafic Complex
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