978 resultados para 43-387
Resumo:
Todas las fuentes antiguas presentan el ascenso al poder de Claudio como un evento fortuito. De acuerdo con ellas, Claudio fue emperador por casualidad y todo su imperio se caracterizó por la inseguridad y la inestabilidad. Tan gran inestabilidad caracterizó todo su gobierno que era natural que él sintiera miedo. Pero este defecto, el temor, aparece notablemente exagerado por Suetonio, quien dedica varios capítulos a su descripción. Sin embargo, cuando llega el momento de narrar la muerte de Claudio y su decisión de favorecer a su hijo Británico en su ascenso al trono y el coraje que esta decisión implicó, Suetonio presenta una narración de los hechos simple y reducida. Suetonio ha disminuido intencionalmente la importancia de este último acto de Claudio, narrándolo de una manera muy simple y concisa, sin comentarios, sin interpretación, a la vez que ha enfatizado y exagerado los defectos del emperador, el miedo y la crueldad. El propósito de este artículo es, por lo tanto, mostrar la tendenciosidad del relato de Suetonio y rescatar la imagen del emperador injustamente vilipendiado
Resumo:
New data are reported on structure of sections, chemical composition, and age of volcano-sedimentary and volcanic rocks from the Sinii Utes Depression in the Southern Primorye region. The Sinii Utes Depression is filled with two sequences: the lower sequence composed of sedimentary-volcanogenic coaliferous rocks (the stratotype of the Sinii Utes Formation) and the upper sequence consisting of tephroid with overlying basalts. This work considers chemical composition and problems of K-Ar dating of basalts. The uppermost basaltic flow has K-Ar age 22.0±1.0 Ma. The dates obtained for the middle and upper parts of lava flows are underestimated. It is explained by their heating due to combustion of brown coals of the Sinii Utes Formation underlying the lava flow. Calculations show that argon could only partly have been removed from the basalts owing to conductive heat transfer and was lost largely due to infiltration of hot gases in heterogeneous fissured medium. Basaltic volcanism on continental margins of the southern Primorye region and the adjacent Korean and Chinese areas at the Oligocene-Miocene boundary preceded Early-Middle Miocene spreading and formation of the Sea of Japan basin. Undifferentiated moderately alkaline basalts of intraplate affinity developed in the Amba Depression and some other structures of the southern Primorye region and intraplate alkali basalts of the Phohang Graben in the Korean Peninsula serve as indicators of incipient spreading regime in the Sea of Japan. Potassic basalt-trachybasalt eruptions occurred locally in riftogenic depressions and shield volcanoes. In some structures this volcanism was terminated by eruptions of intermediate and acid lavas. Such evolution of volcanism is explained by selective contamination of basaltic melts during their interaction with crustal acid material and generation of acid anatectic melts.