The Pan-African quartz-syenite of Guider (north-Cameroon): Magnetic fabric and U–Pb dating of a late-orogenic emplacement

Dawaï, Daouda; Bouchez, Jean‐Luc; Paquette, Jean‐Louis; Tchameni, Rigobert

doi:10.1016/j.precamres.2013.07.008

Cited by 59 publications

(31 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…8f and h); indicating that the Neoproterozoic (Ediacaran to Cryogenian) was the main source for the Rey Bouba basin. These ages correspond well with the U-Pb and Nd model ages of the juxtaposed Neoproterozoic Western Cameroonian Domain (granitoids and volcanosedimentary sources at ca 595,600,615,630,660,693,736,750,780,830, and 920 Ma; Table 1; Toteu et al, 2001Toteu et al, , 2004Toteu et al, , 2006Bouyo Houketchang et al, 2009;Dawaï et al, 2013) as well as the Pan-African Mayo Kebbi Batholith or magmatic arc of SW Chad (ca 640, 665 and 740 Ma; Table 1; Penaye et al, 2006;Isseini et al, 2012). Looking at the high proportion (more than 90%) of 232 Th/ 238 U ratios higher than 0.2, this implies that the predominant sources of Neoproterozoic detritus that fed the RBGB basin were derived from erosion of the adjacent magmatic arc and Western Cameroon Domain or Block.…”

Section: Provenance Of the Sedimentssupporting

confidence: 79%

Neoproterozoic subduction-related metavolcanic and metasedimentary rocks from the Rey Bouba Greenstone Belt of north-central Cameroon in the Central African Fold Belt: New insights into a continental arc geodynamic setting

Bouyo

Zhao

Pénaye

et al. 2015

Precambrian Research

View full text Add to dashboard Cite

Section: Provenance Of the Sedimentssupporting

confidence: 79%

Neoproterozoic subduction-related metavolcanic and metasedimentary rocks from the Rey Bouba Greenstone Belt of north-central Cameroon in the Central African Fold Belt: New insights into a continental arc geodynamic setting

Bouyo

Zhao

Pénaye

et al. 2015

Precambrian Research

View full text Add to dashboard Cite

“…These data are consistent with results of previous studies (Penaye et al, 2006;Isseini et al, 2011) which define the northern Cameroon as a magmatic arc of Pan-African age associated to a collision between Mayo Kebbi and west Cameroon domains. Similar syntectonic features are found in the neighbouring Pan-African plutons in Nigeria (Ferré et al, 1998;Deleris et al, 1996) and in Cameroon (Tchameni et al, 2015;Dawaï et al, 2013;Kouankap et al, 2010).…”

Section: Discussionsupporting

confidence: 65%

“…The Boula Ibi Region (BIR) is located in the western side of the metavolcano sedimentary Bibemi-Zalbi basin (Figure 1b) within the North Domain that includes medium to high grade schists and gneisses of Neoproterozoic age; pre, syn to late Pan-African granitoid units and post tectonic granitoids (Toteu et al, 2004;Dawaï et al, 2013;Dawaï, 2014;Tchameni et al, 2015). However, the Boula Ibi area that includes several granitoids and seems to be a suitable area for petrology and geodynamic evolution of granitoids is still poorly known.…”

Section: Introductionmentioning

confidence: 99%

Geochemical Characterization of Boula Ibi Granitoids and Implications in Geodynamic Evolution

Nlomngan¹,

Pénaye²,

Tchameni³

et al. 2019

JGG

Self Cite

View full text Add to dashboard Cite

Petrographical and geochemical study, consistent with observed field relations show that the Boula Ibi syn-and post-kinematic granitoids in north Cameroon, occurred in banded gneisses. These syn-and post-kinematic granitoids consist of deformed monzonites typified by its granoblastic texture, diorites, syenites, granites and basic xenoliths of dioritic and monzonitic composition. They are calc-alkaline, hyperpotassic, metaluminous to slightly peraluminous and I-Type granitoids. They display high content in Fe 2 O 3 + MgO + CaO (2.16 -23.24 %) that reveals their intermediate affinity, magnesian and metaluminous character whilst the low A/CNK (< 1.1) content indicates their mantle origin. Harker diagrams and La/Sm vs La define the fractional crystallization and partial melting as the two main processes that led the geodynamic evolution of the Boula Ibi syn-and post-kinematic granitoids. These are consistent with low-content of Cs, Ta, Nb, Tb and Hf, supporting high melting rates ranging between 20 and 40% as well as molar Al 2 O 3 /(MgO + FeOt) vs CaO/(MgO + FeOt) plot showing magmatic evolutions from metabasaltic and metagreywackes sources.

show abstract

“…Stretching lineation's are locally well preserved and the second deformation is marked by vertical and NNE-trending foliations, and by tight and upright folds [19]. In the Poli area, synmigmatitic N80-N110 senestral shear zones accompanied this second event [20]. …”

Section: Geological Setting Of the Study Areamentioning

confidence: 99%

Evidence of Structural Facts Inferred from Aeromagnetic Data Analysis over the Guider-Maroua Area (Northern Cameroon)

Ngoh¹,

Mbarga²,

Assembe³

et al. 2017

IJG

View full text Add to dashboard Cite

In this study, we performed some filters to highlight geological structures and/or features which are found in the igneous rocks, between the latitudes 9˚45'N to 10˚45'N and longitudes 13˚15'E to 14˚30'E. The application of the first vertical derivative (FVD) and the horizontal gradient magnitude (HGM) on a total magnetic data over the study area has led to put in evidence: 1) geological features as geological boundaries, faults, dykes, folds on the FVD map; 2) abundant aeromagnetic lineaments probably fractures, dykes and contacts, exhibit a conjugate relationship suggesting a near NE and NW tectonic trends; 3) existence of a possible prominent near E-W compression, characterized by a possible dextral displacement of geological formations by the shear movements; 4) and the magnetic signature of the country rocks.

show abstract

The Pan-African quartz-syenite of Guider (north-Cameroon): Magnetic fabric and U–Pb dating of a late-orogenic emplacement

Cited by 59 publications

References 48 publications

Neoproterozoic subduction-related metavolcanic and metasedimentary rocks from the Rey Bouba Greenstone Belt of north-central Cameroon in the Central African Fold Belt: New insights into a continental arc geodynamic setting

Neoproterozoic subduction-related metavolcanic and metasedimentary rocks from the Rey Bouba Greenstone Belt of north-central Cameroon in the Central African Fold Belt: New insights into a continental arc geodynamic setting

Geochemical Characterization of Boula Ibi Granitoids and Implications in Geodynamic Evolution

Evidence of Structural Facts Inferred from Aeromagnetic Data Analysis over the Guider-Maroua Area (Northern Cameroon)

Contact Info

Product

Resources

About