Lêda Maria Barreto Fraga

Author

Also Known As

FRAGA, Leda Maria Barreto, Fraga, Leda Maria, L. M. B. Fraga, L.M. Fraga, LEDA M. B. FRAGA, LEDA MARIA FRAGA, Leda Maria Barreto Fraga, Leda Maria Fraga, Lêda Maria Barreto Fraga, Lêda Maria Fraga

Publications

494

Citations

H-Index

Concepts

All Affiliations

Serviço Geológico do Brasil - CPRM Universidade Federal do Pará Guyana Forestry Commission Anton de Kom University of Suriname Universidade de São Paulo

About

Lêda Maria Barreto Fraga is an author at Serviço Geológico do Brasil - CPRM specializing in engineering, geology, and earth science.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Engineering	7	7	382
2	Geography	3	3	222
3	Chemistry	1	1	30
4	Materials Science	1	1	30
5	Earth Sciences	1	1	96

Lêda Maria Barreto Fraga

Publications

432

Citations

H-Index

Page 1

	Year	Citations
On the origin and tectonic significance of the intra-plate events of Grenvillian-type age in South America: A discussion Umberto G. Cordani, Lêda Maria Barreto Fraga, Nélson Joaquim Reis, Journal of South American Earth Sciences Plate TectonicsSouth AmericaEngineeringContinental TectonicsGeography	2009	107
Paleoproterozoic evolution of the Guiana Shield in Suriname: A revised model S.B. Kroonenberg, E.W.F. de Roever, Lêda Maria Barreto Fraga, Netherlands Journal of Geosciences – Geologie en Mijnbouw EngineeringPrecambrian GeologyTectonic EvolutionLate Proterozoic MylonitisationEarth Science	2016	96
OROSIRIAN CALC-ALKALINE VOLCANISM AND THE OROCAIMA EVENT IN THE NORTHERN AMAZONIAN CRATON, EASTERN RORAIMA STATE, BRAZIL Nélson Joaquim Reis, Mário Sérgio Gomes de Faria, Lêda Maria Barreto Fraga, Revista Brasileira de Geociências OrogenyMagmatic ProcessVolcanologyEngineeringEastern Roraima State	2000	47
1.94–1.93 Ga charnockitic magmatism from the central part of the Guyana Shield, Roraima, Brazil: Single-zircon evaporation data and tectonic implications Lêda Maria Barreto Fraga, Moacir José Buenano Macambira, Roberto Dall’Agnol, Journal of South American Earth Sciences Magmatic ProcessVolcanologyEngineeringMagmatismGuyana Shield	2009	42
Petrogenesis of the igneous Mucajaí AMG complex, northern Amazonian craton — Geochemical, U–Pb geochronological, and Nd–Hf–O isotopic constraints A. P. Heinonen, Lêda Maria Barreto Fraga, O. Tapani Rämö, Lithos Earth ScienceEngineeringIgneous PetrogenesisGeologyGeochemistry	2011	41
Guyana: the Lost Hadean crust of South America? Serge Nadeau, Wei Chen, Jimmy Reece, Brazilian Journal of Geology	2013	40
THE MESOPROTEROZOIC MUCAJAI ANORTHOSITE - MANGERITE - RAPAKIVI GRANITE COMPLEX, AMAZONIAN CRATON, BRAZIL Lêda Maria Barreto Fraga, Roberto Dall’Agnol, João Batista Sena Costa, The Canadian Mineralogist Biotite GraniteEngineeringChemistryRapakivi Granite ComplexMetamorphic Petrology	2009	30
Stratigraphy of the Roraima Supergroup along the Brazil-Guyana border in the Guiana shield, Northern Amazonian Craton - results of the Brazil-Guyana Geology and Geodiversity Mapping Project Nélson Joaquim Reis, Serge Nadeau, Lêda Maria Barreto Fraga, Brazilian Journal of Geology OrogenyRoraima SupergroupRift SystemBrazil-guyana BorderEngineering	2017	19
Early Orosirian belts of the central Guiana Shield, northern Amazonian Craton: U-Pb geochronology and tectonic implications Lêda Maria Barreto Fraga, Umberto G. Cordani, Ana Maria Dreher, Precambrian Research	2024	10

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