Braz. J. Geol. vol.46 suppl.1

U-Pb SHRIMP and Sm-Nd isotopic ages were determined for felsic metavolcanic rocks from the Silvânia Sequence and Jurubatuba Granite in the central part of the Brasília Belt..

U–Pb zircon SHRIMP geochronology of six detrital sedimentary and metasedimentary rocks (114 zircon crystals, 118 spot analyses) has improved the understanding of the

ABSTRACT: In order to enhance the knowledge of shale objectives from Vaca Muerta and Los Molles Formations in the Neuquén Basin, Argentina, chemostratigraphic and mud gas

he isotopic signatures of suspended matter on the eastern ( 206 Pb/ 207 Pb = 1.188) and western ( 206 Pb/ 207 Pb = 1.174) margins of Guajará Bay show that suspended matter is

Although many minerals emit luminescence, well established luminescence dating protocols are based on the estimation of equivalent doses in quartz or potassium feldspar grains,

Additional examples include the use of in-house apatite, clinopyroxene and plagioclase crystals as reference materials in non matrix- matched Sr isotope determinations on

Diversity of Rhyacian granitoids in the basement of the Neoproterozoic-Early Cambrian Gurupi Belt, northern Brazil: geochemistry, U-Pb zircon geochronology, and Nd

and zircon geochronology of paleoproterozoic granitoids: further evidence on the magmatic and crustal evolution of the São Luís cratonic fragment, Brazil. Geochronology, Nd