Tharsis was probably over a hot spot, a plume of hotter material rising up through the planet's mantle.

塔西斯隆起很可能就处于一个热点——一团从行星地幔中升起的较热物质之上。

It discovered the Tharsis bulge, the source of potbelly of the planet, near the equator.

它发现了塔尔西斯高地，火星大肚皮的地方，靠近赤道。

Unlike the Grand Canyon, it wasn't carved by water; it may have formed when the Tharsis bulge rose up, creating the valley as a radial crack in the surface.

与大峡谷不同，它不是由水流蚀刻而成的；水手谷可能是在塔尔西斯隆起升起时，在火星表面形成的径向裂痕。

Another large feature is the Tharsis bulge, a huge plateau that's home to the four biggest volcanoes on Mars, and the largest volcanoe in the solar system: Olympus Mons.

另一个显著特征是塔西斯隆起，这是一个巨大的高原，也是火星上最大的四大火山，同时是太阳系中最大的火山：奥林匹斯山的家乡。