|
|
|
|
|
Frédéric-Victor Donzé, Laurent Truche, Parisa Shekari Namin, Nicolas Lefeuvre and Elena F. Bazarkina
Hydrogen gas is seeping from the sedimentary basin of São Franciso, Brazil. The seepages of H2 are accompanied by helium, whose isotopes reveal a strong crustal signature. Geophysical data indicates that this intra-cratonic basin is characterized by (i) ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Alice Teresa Valduga, Itamar Luís Gonçalves, Ana Cláudia Piovezan Borges, Albanin Aparecida Mielniczki-Pereira, Ana Paula Picolo
Pág. 115 - 121
Yerba-mate (Ilex paraguariensis St. Hil.) is a native species of South America, and its dried leaves are consumed mainly as a beverage. Its phytochemical profile includes phenolic compounds consisting of secondary metabolites with antioxidant activities....
ver más
|
|
|
|
|
|
|
|
|
|
|
Peter W. Swarzenski, Mark Baskaran, Robert J. Rosenbauer, Brian D. Edwards and Michael Land
Stable and radioactive tracers were utilized in concert to characterize geochemical processes in a complex coastal groundwater system and to provide constraints on the kinetics of rock/water interactions. Groundwater samples from wells within the Domingu...
ver más
|
|
|
|
|
|