Venus: a new understanding on how a geodynamical process under surface can be happening in other planets on solar system

SUCH, PAMELA; FLORES, LAURA

Taller; VIII Taller de Ciencias Planetarias; 2016

Studies of images obtain from VIRTIS mission in the nightside emission of the visible thermal imaging spectrometor from Lada Terra in Planitia Region in the south hermisphere from Venus shows correlation with the geomorphological features analyzed through the brighteness images obtain from Magelllan radar mission. This work was accomplished applying Muller et al 2008 method. In this case atmospheric windows were taken from the thermal emission of 1.02, 1.10 and 1.18 um absortion bands. This signal was attenuated for the atmosphere but it was posible to obtain a correlation between the surface temperature and the surface emissivity. The geomorphology present in the area of study shows a positive anomaly, that taking helbert et al 2008 they can correspond to young lava flows, but this actually means that there is volcanic activity present on venus surface? Or it means that the youngest lava flows can have a different composition from the older surrounded lava flows in the región? On this work we propose that an endogenic process can be happening at certain areas on venus sub-surface, product of a mantle that presents a different geodinamical activity from earth, comparing the thermal emission profile with radiogenic activity on certain áreas we appoint that under surface some certain radiogenic elements in composition can be the cause of excesive heat in some áreas reflecting on surface.