4 documents found, page 1 of 1
Technological Characterization and Radon Exhalation Rate of an Olivine Diabase ...
Silva, Francisco Diones Oliveira; Neto, Antônio Leal; Soares, Wollker Cunha; Neto, José de Araújo Nogueira; Artur, Antônio Carlos [UNESP]Made available in DSpace on 2022-04-29T08:40:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2022-01-01; Radon gas (²²²Rn) after cigarette smoking, has been considered the leading cause of lung cancer in the United States, according to studies, 21,000 people die each year from gas inhalation. Thus, it is very important that radon concentrations be known indoors: residences, mines, galleries, among others. ...
Caracterização tecnológica de quartzitos do estado do Ceará.
Santos, Luzia Suerlange Araújo dos; Soares, Wollker Cunha; Moura, Roney Sérgio M. de; Gomes, Davi Aland Ferreira; Nogueira Neto, José de AraújoThis paper have as an objective show a technological characterízation, in 20 quartzites samples of various occurrences, of different cities of Ceará State, totalizing 11 localities, from physical-mechanical tests: physical indices (porosity, density and water absorption), bending strength in 3 points, compressive strength, impact resistance and Amsler wear resistance. Due to it has an exotic characteristics, li...
Geologia de uma área a NW do município de Banabuiú — CE
Soares, Wollker CunhaThe present work is result of a geologic mapping in the scale of 1:25.000, in an area of approximately 24 km2, located in the municipality of Banabuiú, central hinterland of Ceará. The area is inserted in the Central Ceará Domain, inside the Borborema Province. The main lithostratigraphic units identified during the mapping, from base to top, are: gneissic basement (Acopiara Unit); Granites; pegmatites and coll...
Caracterização metamórfica das rochas granulíticas de Chorozinho-CE
Soares, Wollker CunhaThe metamorphic evolution of granulite terrains are an intense research mark in the last few decades since, mostly, represent inferior and middle continental crust segments. Thereby, Chorozinho’s region (Ceará’s northeast) exhibits an granulite rock sequence which doesn’t have age determination and regional metamorphism studies, preventing a better understanding of an important region for the Ceará state geolog...