Apparent tributaries near the bottom bolster the leading hypothesis that water gushed out of the crater wall, flowed down the crater, and soon evaporated into the thin Martian atmosphere.

• 外表看上去似乎存在地下支流，地下水从火山中涌出，沿着火山往下流淌，很快地就被蒸发到稀薄的火星大气中，这就是现在的主流假设。