Results 41 to 50 of about 7,530 (165)

Sedimentary fluvial processes at the margin of an eolian sand sea: the example of the Botucatu Formation, Paraná Basin [PDF]

Brazilian Journal of Geology
The Upper Jurassic to Lower Cretaceous Botucatu Formation of the Paraná Basin consists primarily of trough cross-bedded eolian sandstone deposited in an intracontinental desert.
Leandro Gustavo da Silva Albino, Luciano Alessandretti, Lucas Warren, Gabriel Bertolini, Rodrigo Irineu Cerri   +4 more
doaj   +1 more source

Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS

Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 369-389, June 2026.
Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro, Erica Martini Tonetto, Elson P. Oliveira, Mauricio Ibañez‐Mejia, Cristina Talavera, Neal J. McNaughton, Jacinta Enzweiler, Michael Wiedenbeck   +7 more
wiley   +1 more source

U-Pb SHRIMP and Sm-Nd geochronology of the Silvânia Volcanics and Jurubatuba Granite: juvenile Paleoproterozoic crust in the basement of the Neoproterozoic Brasília Belt, Goiás, central Brazil

Anais da Academia Brasileira de Ciências, 2001
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.
FISCHEL DANIELLE P., PIMENTEL MÁRCIO M., FUCK REINHARDT A., ARMSTRONG RICHARD   +3 more
doaj  

Heat and Cold Waves in Brazil: An ERA5‐Based Analysis of Trends and Seasonality (1980–2024)

International Journal of Climatology, Volume 46, Issue 6, May 2026.
This study uses ERA5 reanalysis data to assess changes in extreme heat and cold events across Brazil from 1980 to 2024. Results reveal a sharp increase in heatwave frequency and a general decline in coldwave occurrences, though regional variations are substantial.
Alindomar Lacerda Silva, Scott Sheridan
wiley   +1 more source

Avaliação do Impacto Farmacoeconômico do Reaproveitamento de Overfill de Medicamentos Prescritos com Dose Fechada

Jornal de Assistência Farmacêutica e Farmacoeconomia
Objetivos: Avaliar o impacto farmacoeconômico do reaproveitamento de sobras de frascos de medicamentos prescritos com dose fechada em um ambulatório de oncologia do Distrito Federal.
Lorenna Moreno Araujo, Edvan Roldão da Silva, Felipe de Souza Alves, Adriana Francozo de Melo, Fred Soares dos Santos   +4 more
doaj   +1 more source

The Caldas Novas dome, central Brazil : structural evolution and implications for the evolution of the Neoproterozoic Brasilia belt [PDF]

, 2004
The Caldas Novas dome (Goiaas state, central Brazil) lies in the southern segment of the Neoproterozoic Brasilia belt (center of the Tocantins Province) between the Goias magmatic arc and the margin of the ancient Sao Francisco plate.
Klein, Percy Boris Wolf, Silva, Luiz José Homem D´El-Rey, Walde, Detlef Hans-Gert   +2 more
core   +1 more source

Global Environmental Forcing of Coastal Waterline Variability Across Seasonal to Interannual Timescales

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract The position of the coastal waterline—the interface between land and sea—varies over time due to sedimentary and hydrodynamic processes influenced by climate variability. While previous studies have mainly focused on local morphodynamic or storm‐driven shoreline changes, the large‐scale climatic controls on global waterline variability remain ...
Rafael Almar, Julien Boucharel, Gregoire O. Abessolo, Marcan Graffin, Gregoire Thoumyre, Fabrice Papa, Erwin W. J. Bergsma, Edward Anthony, Angelique Melet, Vincent Regard   +9 more
wiley   +1 more source

Reconstruction and Comparison of P-T Paths in the Andrelândia Nappe System, Southern Brasília Fold Belt, MG [PDF]

Geologia USP. Série Científica, 2010
The Andrelândia Nappe System consists of three main nappes, from bottom to top: the lower Andrelândia nappe, themiddle Liberdade nappe and the upper Três Pontas-Varginha nappe and associated klippen, Pouso Alto, Aiuruoca, Carvalhosand Serra da Natureza ...
Rafael Gonçalves da Motta, Renato de Moraes, Rudolph Allard Johannes Trouw, Mário da Costa Campos Neto   +3 more
doaj  

Malignant melanoma of the urethra: a rare histologic subdivision of vulvar cancer with a poor prognosis [PDF]

, 2012
Malignant melanoma of the urethra is a rare tumour that is difficult to diagnose and treat, resulting in a poor prognosis. In this paper, we present the case of a 65-year-old woman who was referred to a gynaecologist because of a urethral mass that ...
Alkatout, Ibrahim, Altarac, Silvio, Cupic, Hrvoje, Fures, Rajko, Günther, Veronika, Hrgovic, Zlatko, Lez, Cvjetko, Mundhenke, Christoph, Persec, Zoran   +8 more
core   +2 more sources

Combined U-Pb and Lu-Hf isotope analyses by laser ablation MC-ICP-MS : methodology and applications [PDF]

, 2010
O sistema isotópico Lutécio-Hafnio representa uma das ferramentas mais recentes e poderosas para estudos isotópicos e geocronológicos. Análises combinadas in situ de U-Pb e Lu-Hf sobre zircão pelo LA-MC-ICP-MS permitem caracterizar isotopicamente o magma
Bernhard Bühn, BLACK LP, BLICHERT-TOFT JE, BÜHN B, CHAUVEL C, CHERNIAK DJ, CHERNIAK DJ, CHU NC, CORFU F, DANTAS EL, DANTAS EL, ELHLOU S, Elton L. Dantas, GERDES A, GERDES A, GRIFFIN WL, GRIFFIN WL, HANCHAR JM, HAWKESWORTH CJ, JACKSON SE, KINNY PD, KOSLER J, LUDWIG K, MACHADO N, Marcio M. Pimentel, Massimo Matteini, NEBEL O, NIR-EL Y, PATCHETT PJ, PATCHETT PJ, SCHERER E, SGUIGNA AP, STACEY JS, TAYLOR SR, THIRLWALL MF, VERVOORT JD, WEDEPOHL KH, WOODHEAD J, WU FY, ZEH A   +39 more
core   +2 more sources