Laze (geology)

Source: Wikipedia, the free encyclopedia.
Laze plumes forming from pāhoehoe lava flowing into the Pacific Ocean, Hawaii

Laze is acid rain and air pollution arising from steam explosions and large plume clouds containing extremely acidic condensate (mainly

portmanteau
of lava and haze.

Laze, created by the interaction of lava and cold seawater, differs from vog, which originates from volcanic vents.[3][4]

The extremely high temperatures of lava flows 1,200 °C (2,200 °F) causes sea water to decompose into hydrogen and oxygen. The hydrogen combines with chloride ions dissolved in sea water, forming hydrogen chloride gas (hydrochloric acid). The rapidly rising plume of gas also carries with it fine particles of volcanic glass.

USGS has reported that, in 2000, two people were killed by exposure to laze clouds.[7]

References

  1. ^ "Vog and Laze Seminar Abstracts" (PDF). Center for the Study of Active Volcanoes, University of Hawaii at Hilo. July 29, 1991. Archived from the original (PDF) on November 1, 2017.
  2. ^ a b Rice, Doyle (22 May 2018). "Lava, acid rain, vog, sulfur dioxide and now 'laze': New deadly threat emerges from Hawaii volcano". USA Today.
  3. ^ Stokes, J.B. (July 29, 1991). "How Vog is made: A photographic perspective" (PDF). Vog and Laze Seminar. Center for the Study of Active Volcanoes, University of Hawaii at Hilo. Archived from the original (PDF) on November 1, 2017.
  4. USGS
    . June 2000.
  5. ^ Lava entering ocean
  6. ^ Hunter, Dana (22 May 2018). "The Lowdown on LAZE: Kilauea's Most Recent Hazard". Scientific American. Retrieved 24 May 2018.
  7. ^ Kirkpatrick, Noel (May 22, 2018). "What is laze? This toxic volcanic mixture is nothing to be relaxed about". Mother Nature Network. Narrative Content Group. Retrieved May 22, 2018.

External links