科学与环境

Kīlauea's swelling summit helps scientists forecast lava fountain eruptions

来源: Phys.org - latest science and technology news stories · 发布于

Kīlauea's swelling summit helps scientists forecast lava fountain eruptions
来源: Phys.org - latest science and technology news stories

Episodic lava fountaining is a rare volcanic behavior in which repeated, hours-long bursts of molten lava and gas are spewed from volcanic vents, with quiet pauses lasting days to weeks between episodes. These lava fountains have been observed in active volcanoes in places like H

Episodic lava fountaining is a rare volcanic behavior in which repeated, hours-long bursts of molten lava and gas are spewed from volcanic vents, with quiet pauses lasting days to weeks between episodes. These lava fountains have been observed in active volcanoes in places like Hawaii, Iceland and Italy, but researchers still do not fully understand what starts, sustains or stops these individual fountain episodes.

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What's been driving Hawaii's lava fountains?
科技与人工智能

What's been driving Hawaii's lava fountains?

In most cases, hotspot-driven volcanism is relatively sedate, with lava flowing down mountainsides slowly enough that people can walk out of its way. But in a number of locations—Mount Etna, Hawaii, Iceland—lava gets expelled in dramatic fountains that can reach several hundred m

Ars Technica - All content ·

Food testing reveals how diet can add to exposure to 'forever chemicals'
科学与环境

Food testing reveals how diet can add to exposure to 'forever chemicals'

Per- and polyfluoroalkyl substances (PFAS)—a vast family of chemicals used largely for their nonstick, water-repellent and grease-resistant properties—are called "forever chemicals" because of their remarkable resistance to degradation. They are now ubiquitous in our environment.

Phys.org - latest science and technology news stories ·