Venus

Coronae
Coronae on Venus are large, circular to ovoidal surface features that have distinctive tectonic, volcanic, and topographic expressions. They range in diameter from less than 200 km to at least 1000 km.
Dominated by concentric tectonic features and have a raised rim, a central region higher than the surounding plains

Shield Volcanoes
Venus has over 150 large shield volcanoes,
Shields are mostly between 100 and 600 km across, with heights between about 300 m and 5 km.
These large shields all look much like shield volcanoes on Earth
They are mostly covered by long, radial lava flows

Tectonics
The radar images from the Magellan missions revealed that the terrestrial style of plate tectonics is not active on Venus and the surface appears to be immobile at the present time.
Based on its surface features, it appears that Venus is tectonically and convectively alive but has a lithosphere that is static.
Venus is essentially basaltic in composition .

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