We present a study of the brittle tectonics Tunas Alkaline Complex focusing on kinematic and geometric analysis faults shear zones deforming complex. The data acquired respective interpretations sought to contribute post-Cretaceous tectonic structural models southern Brazil. ~83 Ma-old alkaline complex is made up syenites, alkali plutonic volcanic breccias, as well trachyte, microsyenite, bosto...

Online trending topics represent the most popular topics among users in certain online community, such as a country community. Trending topics in one community are different from others since the users in the community may discuss different topics from other communities. Surprisingly, almost 90% of trending topics are diffused among multiple online communities, so it shows peoples interests in ...

Inversion of NASA Operation IceBridge airborne gravity over the Abbot Ice Shelf in West Antarctica for subice bathymetry defines an extensional terrain made up of east-west trending rift basins formed during the early stages of Antarctica/Zealandia rifting. Extension is minor, as rifting jumped north of Thurston Island early in the rifting process. The Amundsen Sea Embayment continental shelf w...

The Indian Ocean Geoid Low (IOGL) appears as a prominent feature if the geoid is, usual, shown with respect to Earth's reference shape. However, it is relative hydrostatic equilibrium, i.e. including excess flattening, merely regional low on north-south trending belt of geoid. For mantle viscosity structure an increase 2–3 orders magnitude from asthenosphere lower mantle, which suitable explain...

As plataformas de redes sociais são espaços virtuais nos quais a língua é mobilizada em atos enunciação. Por isso, neste estudo, investigamos como se organiza o aparelho/quadro formal da enunciação para compreendermos que forma dão as relações eu-tu nesse contexto particular. Para tanto, partimos um deslocamento teórico dos conceitos teoria linguagem Émile Benveniste, especificamente suas consi...

Cenozoic extension rates were calculated based on 20 seismic profiles across the Qiongdongnan Basin, South China Sea. The results confirmed that rifting in Basin exhibited multistage and spatiotemporal variation. In terms of N–S striking profiles, structural forms northern southern sags basin characterized by narrow half grabens, while structure at center sag was wide gentle grabens. fault stri...

The Osbourn Trough is a 900 km long, east-west rending gravity low, visible in satellite altimetry data, which intersects the Tonga Trench at 25ø30'S. A recent survey collected gravity, magnetic, echo sounder, and swath bathymetry data on three adjacent, north-south trending ship tracks centered on the trough. The linear gravity low is 20-30 regal less than the regional value and is accompanied...