[PDF] Top 20 Braz. J. Geol. vol.44 número2

... Juruá reverse faults cut these basic igneous rocks in Acre and Solimões basins, as well as Middle to Upper Jurassic beds of the Juruá Mirim Formation in the Acre Basin, so this tecton[r] ... See full document

... The K/Ar fine-fraction ages are synchronous with a widespread Precambrian deformation event located between the northern margin of the São Francisco Craton and the Pernambuco-Alagoas [r] ... See full document

... Dalton de Souza J., Kosin M., Melo R.C., Santos R.A., Teixeira L.R., Sampaio A.R., Guimarães J.T., Vieira Bento R., Borges V.P., Martins A.A.M., Arcanjo J.B., Loureiro H.S.C., Angelim L.A.A. 2003. Mapa Geológico ... See full document

... on the timing of mineralization in the Paleoproterozoic Caxias orogenic gold deposit, São Luís cratonic fragment, Brazil.. Geocronologia do depósito aurífero Paleoproterozoico orogênic[r] ... See full document

... Given the magnitude of the hydrothermal processes associated with shear zones in the Riacho do Pontal Belt, it is reasonable to assume the possibility that the con- tact zone between t[r] ... See full document

... As to the question concerning the origin of these diamondiferous pyroclastic rocks, the authors exclude the kimberlites and point towards the large Serra Negra and Salitre alkaline com[r] ... See full document

... – J) are occurrences of the Subtilisphaera Ecozone that suggest Tethyan inluence; the yellow circles (L – M) are occurrences of typically Austral marine palynoloras; and the blue circle (K) is the radiolarian ... See full document

... One of the irst hypotheses, based on the surface morphology, proposed the formation of a spit enclosing large embayments giving rise to barrier–lagoon systems for the coast of Rio de [r] ... See full document

... Santos M.E.C.M. & Carvalho M.S.S. 2004. Paleontologia das bacias do Parnaíba, Grajaú e São Luís. Programa de Levantamentos Geológicos Básicos do Brasil. CPRM, Serviço Geológico do Brasil/DIEDIG/DEPAT, Rio de Janeiro, ... See full document

... Villagra M.M., Matsumoto O.M., Bacchi O.O.S., Moraes S.O., Libardi P.L., Reichardt K. 1988. Tensiometria e varibilidade espacial em Terra Roxa Estruturada. Revista Brasileira de Ciência do Solo, 12:205-210. Williams ... See full document

... In this paper we present new petrographic, geochemical and geochronological (U-Pb and Sm-Nd) data for the Pedra do Gavião A-type syenogranite located in the Amazonas state, in order t[r] ... See full document

... Manuscript ID: 30305. Received: 04/12/2015. Approved: 05/18/2015. ABSTRACT: he Fernando de Noronha Archipelago presents, on its main island, a centrally-located stratigraphic unit, the Remédios Formation (age around 8 – ... See full document

... he most conident paleo ice-low indicators in the Paraná Basin are streamlined landforms, such as whale- backs and moutonnées , striated pavements on rigid beds, and subglacial soft-se[r] ... See full document

... Teixeira S.G. & Soares E.A.A. 2011. Uso de imagens multi-sensores na identiicação de paleocanais na planície aluvial do Rio Solimões, Amazônia Ocidental. In: XIII Congresso da Associação Brasileira de Estudos do ... See full document

... Santos C.A. & Silva Filho M.A. 1990. Programa Levantamentos Geológicos Básicos do Brasil. Riacho do Caboclo, escala 1:100.000. Folha SC.24-V-A-VI. Estados de Pernambuco e Bahia, CPRM, 113 p. Sial A.N., Vasconcelos ... See full document

... Silva L.C., Armstrong R., Noce C.M., Carneiro M., Pimentel M.M., Pedrosa-Soares A.C., Leite C., Vieira V.S., Silva M., Paes V., Cardoso- Filho J. 2002. Reavaliação da evolução geológica em terrenos pré- cambrianos ... See full document

... In a CHArge-and-RAdius-Controlled (CHARAC) geochemical system, a twin pair element with similar charge and radius, like in the case of Y-Ho, should present a consistent behavior and preserve their chon- dritic ratio, 24 ... See full document

... Faria D.A., Ruiz A.S., Matos J.B., Sousa M.Z.A., Lima G.A., Moacir J.B.M. 2014. Geology geochemistry and geochronology (U-Pb) of the Rio Fortuna Gneiss – Serra do Baú Intrusive Suite – Paraguá Terrane – SW Amazonian ... See full document

... A irst model that takes into consideration the four evidential layers (ASA, h/K ratio, elevation and slope) for the whole study area permits inference on possibilities for supergene n[r] ... See full document

... Li Z.X., Bogdanova S.V., Collins A.S., Davidson A., De Waele B., Ernst R.E., Fitzsimons I.C.W., Fuck R.A., Gladkochub D.P., Jacobs J., Karlstrom K.E., Lu S., Natapov L.M., Pease V., Pisarevsky S.A., Thrane K., ... See full document