geologia e recursos naturais

Large meteorite impacts release kinetic energy that induces rock deformation, high temperatures and fluid circulation during the cratering process. To understand the correlation between rock deformation and fluid circulation, it is relevant to investigate
post-impact hydrothermal flux and its relation to the local geology. The Cerro do Jarau impact structure is a ~13.5 km diameter impact structure located in southern Brazil and formed on Cretaceous continental flood basalts of the Serra Geral Formation and

Fluvial erosion of the Earth's crust creates valleys ranging from hundreds of meters to a few kilometers wide. The resulting unloading is supported by the flexural rigidity of the continental lithosphere. As a result, the bending of the lithosphere around individual river valleys is usually imperceptible in the landscape, specially in tectonically quiescent environments.

This chapter will discuss exchange processes that control Titan's global chemistry and thus its habitability: e.g., impact cratering, cryovolcanism, degassing. We review the available work constraining the extent of exchange between Titan's ocean and surface. Cassini-Huygens observations provide a better picture of the composition and structure of the ice but do not reveal the extent of its tectonics or overturning, if any. Improved laboratory data are enabling models of the interior structure and overturning, coupled with transport from impacts.