No one knows yet exactly how the impact could have sparked a prolonged episode of volcanism.

目前没有人确切知道撞击是何引发长期火山活动的。

Most likely this was from cryovolcanoes, cold volcanism; that is, volcanoes where water and ammonia take the place of lava there.

很可能是来自低温火山——冷火山作用；也即由水和氨组成而非熔岩喷涌的火山。

Venus was geologically dead, making the Earth the only rocky planet with active volcanism.

金星在地质上已经死亡，使地球成为唯一具有活跃火山活动的岩石行星。

Scorching  temperatures, volcanism and a crushing atmosphere are what you'd actually find on the surface.

实际上，金星表面存在着灼热的温度、频繁的火山活动以及令人窒息的大气压强。

Evidence of flood volcanism is  scattered across the world today.

洪水玄武岩喷发的今遍布球各地。

Volcanism, the name givento volcanic processes, really has shaped the world.

火山作用（我们对火山活动过程的命名）塑造了整个世界。

C, volcanism putting more carbon dioxide into the atmosphere.

C，火山活动将更多的二氧化碳排放到大气中。

The tectonic activity and volcanism help sustain life by stabilizing the global temperatures and the carbon cycle.

板块活动和火山作用有助于维持生命，它们通过稳定球温度和碳循环来实现这一点。

For instance, on Earth, energy for volcanism primarily comes from the radioactive decay occurring in the Earth's interior.

例，在地球上，火山活动的能量主要来自地球内部发生的放射性衰变。

Around 3 to 4 billion years ago, Mars was a hot spot for volcanism.

大约30亿到40亿年前，火星曾是火山活动的热点地区。

If that's the case, volcanism could very well be the root cause of Venus' thick cloud cover.

果是这样的话，火山活动很有可能是造成金星厚云盖的根本原因。

Massive volcanism and falling sea levels might have forced them to extinction, even if the asteroid had missed.

频繁的火山活动和海平面下降也迫使它们走向灭亡，即使小行星没有碰撞地球。

We believe that the extinction may have been related to intense volcanism during the initial breakup of Pangea.

我们认为，这次灭绝可能与盘古大陆最初分裂期间的强烈火山活动有关。

However, most of the volcanism was believed to have occurred only during this period.

然而，信大部分火山活动仅发生在这个时期。

In many spots in the solar system it looks like volcanism happened much longer after the impact than what she saw at Sudbury.

太阳系中的许多地方都有火山活动，看起来发生时间比她在萨德伯里看到的撞击时间要晚得多。

Suzanne Smrekar of NASA's Jet Propulsion Laboratory in Pasadena, California, and her colleagues have found signs of relatively recent volcanism.

美国宇航局位于加利福尼亚州帕萨迪纳的喷气推进实验室的 Suzanne Smrekar 和她的同事发现了相对较新的火山活动迹象。

These results suggest that geological activity and volcanism still play an active role in shaping the Martian surface.

这些发现表明，地质活动和火山作用仍在积极塑造火星表面。

While active volcanism introduces some amounts of minerals to the North Island soils, these eruptions don't really happen that often and they're usually pretty minor events.

虽然活跃的火山活动给北岛的土壤带来了一些矿物质，但这些喷发并不经常发生，通常是相当小概率的事件。

And so they are therefore just more fertile and easier to grow crops in than New Zealand where volcanism is more dormant and rarely even happens.

因此，这些土地比新西兰的土地更肥沃，更容易种植庄稼，新西兰的火山活动休眠得更多，甚至很少发生。

That's the dominant phenomenon driving Io's volcanism.

那是主导木卫一火山活动的现象。