Sheila Maria Bretas Bittar

U–Pb zircon ages of orthogneisses and supracrustal rocks of the Cariris Velhos belt: Onset of Neoproterozoic rifting in the Borborema Province, NE Brazil

Ignez P. Guimarães, W. R. Van Schmus, Sheila Maria Bretas Bittar et al. · Precambrian Research · 2011 · 90 citations · Full text

Natural Sciences, Earth Sciences, Geology +7

Natural concentrations and reference values for trace elements in soils of a tropical volcanic archipelago

Adelazil de Brito Fabricio Neta, Clístenes Williams Araújo do Nascimento, Caroline Miranda Biondi et al. · Environmental Geochemistry and Health · 2016 · 29 citations

Natural Sciences, Earth Sciences, Soil Sciences +16

The gemstone deposits of Brazil: occurrences, production and economic impact

Sandra de Brito Barreto, Sheila Maria Bretas Bittar · Boletín de la Sociedad Geológica Mexicana · 2010 · 22 citations · Full text

Natural Sciences, Earth Sciences, Economics +12

Biomarker signatures of Cretaceous Gondwana amber from Ipubi Formation (Araripe Basin, Brazil) and their palaeobotanical significance

Ricardo Pereira, Flaviana Jorge de Lima, Felipe Medeiros Simbras et al. · Journal of South American Earth Sciences · 2019 · 15 citations

Natural Sciences, Earth Sciences, Geology +7

Planosols Developed in Different Geoenvironmental Conditions in Northeastern Brazil

José Thales Pantaleão Ferreira, Mateus Rosas Ribeiro Filho, Mateus Rosas Ribeiro et al. · Revista Brasileira de Ciência do Solo · 2016 · 11 citations · Full text

Agriculture, Earth Sciences, Soil Sciences +17