#Engenheiros do hawaii 4x4 plus#

Plagioclase and apatite 87Sr/86Sr ratios (0.70422-0.70927) obtained for the most primitive samples of each intrusion indicate disequilibrium conditions from early- to principal-crystallization stages. The wide ranges of whole-rock 87Sr/86Sri and 143Nd/144Ndi ratios (0.70432-0.70641 and 0.512216-0.512555, respectively) are indicative of crustal contribution from the Precambrian basement host rocks. All samples are olivine- and nepheline-normative rocks with basic-ultrabasic and potassic characters and variable incompatible element enrichments. Disequilibrium features in the early-crystallized phases (e.g., corrosion and sieve textures in cores of clinopyroxene crystals, spongy-cellular-textured plagioclase crystals, gulf corrosion texture in olivine crystals) and classical hybridization textures (e.g., blade biotite and acicular apatite crystals) provide strong evidence of open-system behavior. This massif is composed of several intrusions, the main ones with a cumulate character.

#Engenheiros do hawaii 4x4 plus#

Petrographic, geochemical and isotopic evidence of crustal assimilation processes in the Ponte Nova alkaline mafic-ultramafic massif, SE BrazilДЄzzone, RogГѓВ©rio Guitarrari Montecinos Munoz, Patricio Enrich, Gaston Eduardo Rojas Alves, Adriana Ruberti, Excelso Gomes, Celsode BarrosД¬rustal assimilation plus crystal fractionation processes of different basanite magma batches control the evolution of the Ponte Nova cretaceous alkaline mafic-ultramafic massif in SE Brazil. A idГѓВ©ia, atribuГѓВda ao engenheiro francГѓВЄs Jacques Mathivat, consiste em util. Um exemplo desse desenvolvimento ГѓВ© a ponte com protensГѓВЈo no extradorso, que comeГѓВ§a a se difundir no meio tГѓВ©cnico como uma transiГѓВ§ГѓВЈo econГѓВґmica entre as pontes de concreto protendido e as estaiadas. Nos ГѓВєltimos anos, a protensГѓВЈo externa aplicada a estruturas de pontes tem evoluГѓВdo de forma excepcional, o que permite maior liberdade de projeto e, consequentemente, possibilita o surgimento de novas tipologias estruturais.

Comportamento estrutural de pontes com protensГѓВЈo no extradorso.