This is a map of Venus.
Click on image for full size
Tessera is a unique feature of Venus, found on Alpha Regio, Ishtar Terra, and Aphrodite Terra.
Tessera is created when the crust is pushed together. Then the surface folds and breaks. This process
may be like mountain-building on Earth. But,
because Venus lacks continental drift, mountain building must occur somewhat
Tessera provide evidence that the surface of Venus may be in motion.
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