什么地质过程影响基拉韦厄火山熔岩流的速度?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 10 - t04:28:41z //www.hoelymoley.com/feeds/question/2724 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/2724 11 什么地质过程影响基拉韦厄火山熔岩流的速度? user889 //www.hoelymoley.com/users/0 2014 - 11 - 04 - t10:19:32z 2017 - 02年- 17 - t03:22:22z < p >最近的熔岩流从当前在夏威夷基拉韦厄火山的喷发产生大量的兴趣和关心财产。< / p >

In the article slow-motion disaster as lava nears main Hawaiian road, USA Today suggests that the variable speed of the lava flow has caused considerable concern and uncertainty:

"It's like slow torture," said Paul Utes, who owns the Black Rock Cafe in Pahoa. "It speeds up, it slows down, it speeds up, it slows down. It's not like any other event where it comes and goes ... and you can move on."

Predicting the future speed of the lava flow simply isn't possible, geologists say, because the advance rate is extremely variable and depends on how much lava the volcano produces.

Despite that evasion, it seems there must be more to the story...
What geological processes affect lava flow speed from the Kilauea volcano?

 //www.hoelymoley.com/questions/2724/-/9707 # 9707 2 答案由f。索普的地质过程影响基拉韦厄火山熔岩流的速度? f.thorpe //www.hoelymoley.com/users/543 2017 - 02年- 17 - t03:22:22z 2017 - 02年- 17 - t03:22:22z < p >从基拉韦厄火山熔岩流的速度取决于几件事情:< / p > < ol > <李>活动的岩浆的来源。这个流你谈论来自一个发泄从基拉韦厄火山20英里。因此,它更像是一个泄漏,比真正的爆发。没有很多这些类型的事件背后的力量,因此没有太多的熔岩。李李< / > < >熔岩的粘度。这是玄武岩,所以它可以移动很快,熔岩。李李< / > < >地形。岩浆的来源不是附近的峰会,而是下山在只有700英尺的海拔。周围的地形斜率很浅,不允许熔岩将急转直下。李李< / > < >岩浆的冷却速率。在Pahoa下雨很多。尤其是在10月下旬。 This helps to cool and harden the lava, which slows the movement.
  • Barriers and surface characteristics. There are a lot of natural contours in the land, trees, and brush in the Pahoa area. This helps to slow down the movement.

    • Having grown up on the Big Island, I can say from experience that these flows that come out of side vents are often slow enough to walk right up to and play with. They don't move fast at all. The reason it's such a big news event is because it nearly covered a main highway, which would've cut off a lot of people from the main town, Hilo.

    The fast-moving lava flows usually come from the main caldera, where the amount of lava erupting is far greater. Also, Kilauea is really just a pimple on the side of Mauna Loa. So, it is a bit of a release valve for the big volcano. Shouldn't be too long before Mauna Loa erupts again and then you will see a lot of fast moving lava from a 13,000+ ft location.

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