6 documents found, page 1 of 1
From source to surface: clues from garnet-bearing Carboniferous silicic volcani...
Cravinho, André; Rosa, Diogo; Relvas, Jorge M.R.S.; Solá, A. Rita; Pereira, Inês; Paquette, J. L.; Borba, M. L.; Tassinari, Colombo C. G.; Chew, DavidABSTRACT: This work investigates the relationships between partial melting, melt extraction, pluton growth and silicic volcanism in garnet-bearing felsic volcanic rocks that were extruded in the Iberian Pyrite Belt, at ca. 345 Ma. The garnets are of peritectic origin, displaying textural and chemical features of disequilibrium crystallization during partial melting reactions involving biotite at high temperatur...
Geocronologia U-Pb dos zircões detríticos das regiões de Moatiz e N'Condedzi, B...
Fernandes, Paulo; Jorge, Raul CG Santos; Albardeiro, Luís; Chew, David; Drakou, Foteini; Pereira, Zélia; Marques, João
From source to surface: clues from garnet-bearing Carboniferous silicic volcani...
Cravinho, André; Rosa, Diogo; Relvas, Jorge M.R.S.; Solá, A. Rita; Pereira, Inês; Paquette, J. L.; Borba, M. L.; Tassinari, Colombo C. G.; Chew, DavidABSTRACT: This work investigates the relationships between partial melting, melt extraction, pluton growth and silicic volcanism in garnet-bearing felsic volcanic rocks that were extruded in the Iberian Pyrite Belt, at ca. 345 Ma. The garnets are of peritectic origin, displaying textural and chemical features of disequilibrium crystallization during partial melting reactions involving biotite at high temperatur...
Detrital zircon U-Pb geochronology of the Moatize and N’Cond´edzi coalfields, Z...
Fernandes, Paulo; Jorge, Raul CG Santos; Albardeiro, Luís; Chew, David; Drakou, Foteini; Pereira, Zélia; Marques, JoãoABSTRACT: Detrital zircon U-Pb geochronology of the Moatize and N'Condedzi coalfields in the Zambezi Karoo Basin of Mozambique provides key insights into the regional provenance, sediment dispersal pathways and basin evolution. Borehole cores from the two coalfields reveal a stratigraphy spanning the early Roadian (middle Permian) to the Carnian (Upper Triassic). The Permian sandstones of the Moatize Coalfield ...
Detrital zircon U-Pb geochronology of the moatize and n'condédzi coalfields, za...
Fernandes, Paulo; Jorge, Raul C. G. S.; Albardeiro, Luís; Chew, David; Drakou, Foteini; Pereira, Zélia; Marques, JoãoDetrital zircon U-Pb geochronology of the Moatize and N'Condedzi coalfields in the Zambezi Karoo Basin of Mozambique provides key insights into the regional provenance, sediment dispersal pathways and basin evolution. Borehole cores from the two coalfields reveal a stratigraphy spanning the early Roadian (middle Permian) to the Carnian (Upper Triassic). The Permian sandstones of the Moatize Coalfield (MC) yield...
Detrital zircon geochronology of the Lower Karoo Group in the N’Condédzi Basin...
Fernandes, Paulo; Jorge, Raul CG Santos; Albardeiro, Luís; Chew, David; Drakou, Foteini; Pereira, Zélia; Marques, JoãoSUMÁRIO: A Bacia de N’Condédzi, pertence ao conjunto de bacias sedimentares moçambicanas do Ciclo Karoo. O preenchimento sedimentar consiste numa sequência detrítica, com ca. 2000 m de espessura, depositada em ambientes lacustres e aluvionares. Com a finalidade de conhecer a proveniência dos terrenos fonte das rochas detríticas, foram estudadas para geocronologia U-Pb, as populações de zircões detríticos de are...